merge

2025-11-11 07:55:47 +01:00 · 2018-12-06 08:48:58 +01:00
parent 6b2125687e 7bcf7a4774
commit 970eb548b3
50 changed files with 1961 additions and 521 deletions
--- a/scm-core/src/main/java/sonia/scm/security/AccessToken.java
+++ b/scm-core/src/main/java/sonia/scm/security/AccessToken.java
@@ -31,6 +31,7 @@
 package sonia.scm.security;

 import java.util.Date;
+import java.util.Map;
 import java.util.Optional;

 /**
@@ -38,70 +39,77 @@ import java.util.Optional;
 * be issued from a restful webservice endpoint by providing credentials. After the token was issued, the token must be
 * send along with every request. The token should be send in its compact representation as bearer authorization header
 * or as cookie.
- * 
+ *
 * @author Sebastian Sdorra
 * @since 2.0.0
 */
 public interface AccessToken {
-  
+
  /**
   * Returns unique id of the access token.
-   * 
+   *
   * @return unique id
   */
  String getId();
-  
+
  /**
   * Returns name of subject which identifies the principal.
-   * 
+   *
   * @return name of subject
   */
  String getSubject();
-  
+
  /**
   * Returns optional issuer. The issuer identifies the principal that issued the token.
-   * 
+   *
   * @return optional issuer
   */
  Optional<String> getIssuer();
-  
+
  /**
   * Returns time at which the token was issued.
-   * 
+   *
   * @return time at which the token was issued
   */
  Date getIssuedAt();
-  
+
  /**
   * Returns the expiration time of token.
-   * 
+   *
   * @return expiration time
   */
  Date getExpiration();
-  
+
+  Optional<Date> getRefreshExpiration();
+
  /**
-   * Returns the scope of the token. The scope is able to reduce the permissions of the subject in the context of this 
+   * Returns the scope of the token. The scope is able to reduce the permissions of the subject in the context of this
   * token. For example we could issue a token which can only be used to read a single repository. for more informations
   * please have a look at {@link Scope}.
-   * 
+   *
   * @return scope of token.
   */
  Scope getScope();
-  
+
  /**
   * Returns an optional value of a custom token field.
-   * 
+   *
   * @param <T> type of field
   * @param key key of token field
-   * 
+   *
   * @return optional value of custom field
   */
  <T> Optional<T> getCustom(String key);
-  
+
  /**
   * Returns compact representation of token.
-   * 
+   *
   * @return compact representation
   */
  String compact();
+
+  /**
+   * Returns read only map of all claim keys with their values.
+   */
+  Map<String, Object> getClaims();
 }
--- a/scm-core/src/main/java/sonia/scm/security/AccessTokenBuilder.java
+++ b/scm-core/src/main/java/sonia/scm/security/AccessTokenBuilder.java
@@ -74,11 +74,21 @@ public interface AccessTokenBuilder {
   * Sets the expiration for the token.
   * 
   * @param count expiration count
-   * @param unit expirtation unit
+   * @param unit expiration unit
   * 
   * @return {@code this}
   */
  AccessTokenBuilder expiresIn(long count, TimeUnit unit);
+
+  /**
+   * Sets the time how long this token may be refreshed. Set this to 0 (zero) to disable automatic refresh.
+   *
+   * @param count Time unit count. If set to 0, automatic refresh is disabled.
+   * @param unit time unit
+   *
+   * @return {@code this}
+   */
+  AccessTokenBuilder refreshableFor(long count, TimeUnit unit);
  
  /**
   * Reduces the permissions of the token by providing a scope.
--- a/scm-plugins/scm-git-plugin/package.json
+++ b/scm-plugins/scm-git-plugin/package.json
@@ -12,6 +12,6 @@
    "@scm-manager/ui-extensions": "^0.1.1"
  },
  "devDependencies": {
-    "@scm-manager/ui-bundler": "^0.0.21"
+    "@scm-manager/ui-bundler": "^0.0.22"
  }
 }
--- a/scm-plugins/scm-git-plugin/yarn.lock
+++ b/scm-plugins/scm-git-plugin/yarn.lock
@@ -707,9 +707,9 @@
  version "0.0.2"
  resolved "https://registry.yarnpkg.com/@scm-manager/eslint-config/-/eslint-config-0.0.2.tgz#94cc8c3fb4f51f870b235893dc134fc6c423ae85"

-"@scm-manager/ui-bundler@^0.0.21":
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.21.tgz#f8b5fa355415cc67b8aaf8744e1701a299dff647"
+"@scm-manager/ui-bundler@^0.0.22":
+  version "0.0.22"
+  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.22.tgz#6eaed4e1f0b1fbc6ed1ebbf7eb0f5585f760949a"
  dependencies:
    "@babel/core" "^7.0.0"
    "@babel/plugin-proposal-class-properties" "^7.0.0"
--- a/scm-plugins/scm-hg-plugin/package.json
+++ b/scm-plugins/scm-hg-plugin/package.json
@@ -9,6 +9,6 @@
    "@scm-manager/ui-extensions": "^0.1.1"
  },
  "devDependencies": {
-    "@scm-manager/ui-bundler": "^0.0.21"
+    "@scm-manager/ui-bundler": "^0.0.22"
  }
 }
--- a/scm-plugins/scm-hg-plugin/yarn.lock
+++ b/scm-plugins/scm-hg-plugin/yarn.lock
@@ -641,9 +641,9 @@
  version "0.0.2"
  resolved "https://registry.yarnpkg.com/@scm-manager/eslint-config/-/eslint-config-0.0.2.tgz#94cc8c3fb4f51f870b235893dc134fc6c423ae85"

-"@scm-manager/ui-bundler@^0.0.21":
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.21.tgz#f8b5fa355415cc67b8aaf8744e1701a299dff647"
+"@scm-manager/ui-bundler@^0.0.22":
+  version "0.0.22"
+  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.22.tgz#6eaed4e1f0b1fbc6ed1ebbf7eb0f5585f760949a"
  dependencies:
    "@babel/core" "^7.0.0"
    "@babel/plugin-proposal-class-properties" "^7.0.0"
--- a/scm-plugins/scm-svn-plugin/package.json
+++ b/scm-plugins/scm-svn-plugin/package.json
@@ -9,6 +9,6 @@
    "@scm-manager/ui-extensions": "^0.1.1"
  },
  "devDependencies": {
-    "@scm-manager/ui-bundler": "^0.0.21"
+    "@scm-manager/ui-bundler": "^0.0.22"
  }
 }
--- a/scm-plugins/scm-svn-plugin/yarn.lock
+++ b/scm-plugins/scm-svn-plugin/yarn.lock
@@ -641,9 +641,9 @@
  version "0.0.2"
  resolved "https://registry.yarnpkg.com/@scm-manager/eslint-config/-/eslint-config-0.0.2.tgz#94cc8c3fb4f51f870b235893dc134fc6c423ae85"

-"@scm-manager/ui-bundler@^0.0.21":
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.21.tgz#f8b5fa355415cc67b8aaf8744e1701a299dff647"
+"@scm-manager/ui-bundler@^0.0.22":
+  version "0.0.22"
+  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.22.tgz#6eaed4e1f0b1fbc6ed1ebbf7eb0f5585f760949a"
  dependencies:
    "@babel/core" "^7.0.0"
    "@babel/plugin-proposal-class-properties" "^7.0.0"
--- a/scm-ui-components/packages/ui-components/package.json
+++ b/scm-ui-components/packages/ui-components/package.json
@@ -14,7 +14,7 @@
    "eslint-fix": "eslint src --fix"
  },
  "devDependencies": {
-    "@scm-manager/ui-bundler": "^0.0.21",
+    "@scm-manager/ui-bundler": "^0.0.22",
    "create-index": "^2.3.0",
    "enzyme": "^3.5.0",
    "enzyme-adapter-react-16": "^1.3.1",
@@ -34,7 +34,8 @@
    "react-dom": "^16.5.2",
    "react-i18next": "^7.11.0",
    "react-jss": "^8.6.1",
-    "react-router-dom": "^4.3.1"
+    "react-router-dom": "^4.3.1",
+    "react-select": "^2.1.2"
  },
  "browserify": {
    "transform": [
--- a/scm-ui-components/packages/ui-components/src/Autocomplete.js
+++ b/scm-ui-components/packages/ui-components/src/Autocomplete.js
@@ -0,0 +1,73 @@
+// @flow
+import React from "react";
+import { AsyncCreatable } from "react-select";
+import type { AutocompleteObject, SelectValue } from "@scm-manager/ui-types";
+import LabelWithHelpIcon from "./forms/LabelWithHelpIcon";
+
+
+type Props = {
+  loadSuggestions: string => Promise<AutocompleteObject>,
+  valueSelected: SelectValue => void,
+  label: string,
+  helpText?: string,
+  value?: SelectValue,
+  placeholder: string,
+  loadingMessage: string,
+  noOptionsMessage: string
+};
+
+
+type State = {};
+
+class Autocomplete extends React.Component<Props, State> {
+
+
+  static defaultProps = {
+    placeholder: "Type here",
+    loadingMessage: "Loading...",
+    noOptionsMessage: "No suggestion available"
+  };
+
+  handleInputChange = (newValue: SelectValue) => {
+    this.props.valueSelected(newValue);
+  };
+
+  // We overwrite this to avoid running into a bug (https://github.com/JedWatson/react-select/issues/2944)
+  isValidNewOption = (inputValue: string, selectValue: SelectValue, selectOptions: SelectValue[]) => {
+    const isNotDuplicated = !selectOptions
+      .map(option => option.label)
+      .includes(inputValue);
+    const isNotEmpty = inputValue !== "";
+    return isNotEmpty && isNotDuplicated;
+  };
+
+  render() {
+    const { label, helpText, value, placeholder, loadingMessage, noOptionsMessage, loadSuggestions } = this.props;
+    return (
+      <div className="field">
+        <LabelWithHelpIcon label={label} helpText={helpText} />
+        <div className="control">
+          <AsyncCreatable
+            cacheOptions
+            loadOptions={loadSuggestions}
+            onChange={this.handleInputChange}
+            value={value}
+            placeholder={placeholder}
+            loadingMessage={() => loadingMessage}
+            noOptionsMessage={() => noOptionsMessage}
+            isValidNewOption={this.isValidNewOption}
+            onCreateOption={value => {
+              this.handleInputChange({
+                label: value,
+                value: { id: value, displayName: value }
+              });
+            }}
+          />
+        </div>
+      </div>
+    );
+  }
+}
+
+
+export default Autocomplete;
--- a/scm-ui-components/packages/ui-components/src/ErrorNotification.js
+++ b/scm-ui-components/packages/ui-components/src/ErrorNotification.js
@@ -18,7 +18,7 @@ class ErrorNotification extends React.Component<Props> {
        </Notification>
      );
    }
-    return "";
+    return null;
  }
 }

--- a/scm-ui-components/packages/ui-components/src/Paginator.test.js
+++ b/scm-ui-components/packages/ui-components/src/Paginator.test.js
@@ -1,12 +1,11 @@
 // @flow
 import React from "react";
-import {mount, shallow} from "enzyme";
+import { mount, shallow } from "enzyme";
 import "./tests/enzyme";
 import "./tests/i18n";
 import ReactRouterEnzymeContext from "react-router-enzyme-context";
 import Paginator from "./Paginator";

-// TODO: Fix tests
 xdescribe("paginator rendering tests", () => {

  const options = new ReactRouterEnzymeContext();
--- a/scm-ui-components/packages/ui-components/src/forms/AutocompleteAddEntryToTableField.js
+++ b/scm-ui-components/packages/ui-components/src/forms/AutocompleteAddEntryToTableField.js
@@ -0,0 +1,88 @@
+//@flow
+import React from "react";
+
+import type { AutocompleteObject, SelectValue } from "@scm-manager/ui-types";
+import Autocomplete from "../Autocomplete";
+import AddButton from "../buttons/AddButton";
+
+type Props = {
+  addEntry: SelectValue => void,
+  disabled: boolean,
+  buttonLabel: string,
+  fieldLabel: string,
+  helpText?: string,
+  loadSuggestions: string => Promise<AutocompleteObject>,
+  placeholder?: string,
+  loadingMessage?: string,
+  noOptionsMessage?: string
+};
+
+type State = {
+  selectedValue?: SelectValue
+};
+
+class AutocompleteAddEntryToTableField extends React.Component<Props, State> {
+  constructor(props: Props) {
+    super(props);
+    this.state = { selectedValue: undefined };
+  }
+  render() {
+    const {
+      disabled,
+      buttonLabel,
+      fieldLabel,
+      helpText,
+      loadSuggestions,
+      placeholder,
+      loadingMessage,
+      noOptionsMessage
+    } = this.props;
+
+    const { selectedValue } = this.state;
+    return (
+      <div className="field">
+        <Autocomplete
+          label={fieldLabel}
+          loadSuggestions={loadSuggestions}
+          valueSelected={this.handleAddEntryChange}
+          helpText={helpText}
+          value={selectedValue}
+          placeholder={placeholder}
+          loadingMessage={loadingMessage}
+          noOptionsMessage={noOptionsMessage}
+        />
+
+        <AddButton
+          label={buttonLabel}
+          action={this.addButtonClicked}
+          disabled={disabled}
+        />
+      </div>
+    );
+  }
+
+  addButtonClicked = (event: Event) => {
+    event.preventDefault();
+    this.appendEntry();
+  };
+
+  appendEntry = () => {
+    const { selectedValue } = this.state;
+    if (!selectedValue) {
+      return;
+    }
+    // $FlowFixMe null is needed to clear the selection; undefined does not work
+    this.setState({ ...this.state, selectedValue: null }, () =>
+      this.props.addEntry(selectedValue)
+    );
+  };
+
+  handleAddEntryChange = (selection: SelectValue) => {
+    this.setState({
+      ...this.state,
+      selectedValue: selection
+    });
+  };
+}
+
+export default AutocompleteAddEntryToTableField;
--- a/scm-ui-components/packages/ui-components/src/forms/LabelWithHelpIcon.js
+++ b/scm-ui-components/packages/ui-components/src/forms/LabelWithHelpIcon.js
@@ -1,6 +1,6 @@
 //@flow
 import React from "react";
-import Help from '../Help';
+import Help from "../Help.js";

 type Props = {
  label?: string,
--- a/scm-ui-components/packages/ui-components/src/forms/index.js
+++ b/scm-ui-components/packages/ui-components/src/forms/index.js
@@ -1,6 +1,7 @@
 // @create-index

 export { default as AddEntryToTableField } from "./AddEntryToTableField.js";
+export { default as AutocompleteAddEntryToTableField } from "./AutocompleteAddEntryToTableField.js";
 export { default as Checkbox } from "./Checkbox.js";
 export { default as InputField } from "./InputField.js";
 export { default as Select } from "./Select.js";
--- a/scm-ui-components/packages/ui-components/src/index.js
+++ b/scm-ui-components/packages/ui-components/src/index.js
@@ -23,6 +23,7 @@ export { default as Help } from "./Help";
 export { default as HelpIcon } from "./HelpIcon";
 export { default as Tooltip } from "./Tooltip";
 export { getPageFromMatch } from "./urls";
+export { default as Autocomplete} from "./Autocomplete";

 export { apiClient, NOT_FOUND_ERROR_MESSAGE, UNAUTHORIZED_ERROR_MESSAGE } from "./apiclient.js";

--- a/scm-ui-components/packages/ui-components/yarn.lock
+++ b/scm-ui-components/packages/ui-components/yarn.lock
@@ -576,6 +576,12 @@
    "@babel/plugin-transform-react-jsx-self" "^7.0.0"
    "@babel/plugin-transform-react-jsx-source" "^7.0.0"

+"@babel/runtime@^7.1.2":
+  version "7.1.5"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.1.5.tgz#4170907641cf1f61508f563ece3725150cc6fe39"
+  dependencies:
+    regenerator-runtime "^0.12.0"
+
 "@babel/template@^7.1.0", "@babel/template@^7.1.2":
  version "7.1.2"
  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.1.2.tgz#090484a574fef5a2d2d7726a674eceda5c5b5644"
@@ -606,6 +612,46 @@
    lodash "^4.17.10"
    to-fast-properties "^2.0.0"

+"@emotion/babel-utils@^0.6.4":
+  version "0.6.10"
+  resolved "https://registry.yarnpkg.com/@emotion/babel-utils/-/babel-utils-0.6.10.tgz#83dbf3dfa933fae9fc566e54fbb45f14674c6ccc"
+  dependencies:
+    "@emotion/hash" "^0.6.6"
+    "@emotion/memoize" "^0.6.6"
+    "@emotion/serialize" "^0.9.1"
+    convert-source-map "^1.5.1"
+    find-root "^1.1.0"
+    source-map "^0.7.2"
+
+"@emotion/hash@^0.6.2", "@emotion/hash@^0.6.6":
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/@emotion/hash/-/hash-0.6.6.tgz#62266c5f0eac6941fece302abad69f2ee7e25e44"
+
+"@emotion/memoize@^0.6.1", "@emotion/memoize@^0.6.6":
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/@emotion/memoize/-/memoize-0.6.6.tgz#004b98298d04c7ca3b4f50ca2035d4f60d2eed1b"
+
+"@emotion/serialize@^0.9.1":
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/@emotion/serialize/-/serialize-0.9.1.tgz#a494982a6920730dba6303eb018220a2b629c145"
+  dependencies:
+    "@emotion/hash" "^0.6.6"
+    "@emotion/memoize" "^0.6.6"
+    "@emotion/unitless" "^0.6.7"
+    "@emotion/utils" "^0.8.2"
+
+"@emotion/stylis@^0.7.0":
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/@emotion/stylis/-/stylis-0.7.1.tgz#50f63225e712d99e2b2b39c19c70fff023793ca5"
+
+"@emotion/unitless@^0.6.2", "@emotion/unitless@^0.6.7":
+  version "0.6.7"
+  resolved "https://registry.yarnpkg.com/@emotion/unitless/-/unitless-0.6.7.tgz#53e9f1892f725b194d5e6a1684a7b394df592397"
+
+"@emotion/utils@^0.8.2":
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/@emotion/utils/-/utils-0.8.2.tgz#576ff7fb1230185b619a75d258cbc98f0867a8dc"
+
 "@gulp-sourcemaps/identity-map@1.X":
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/@gulp-sourcemaps/identity-map/-/identity-map-1.0.2.tgz#1e6fe5d8027b1f285dc0d31762f566bccd73d5a9"
@@ -641,9 +687,9 @@
  version "0.0.2"
  resolved "https://registry.yarnpkg.com/@scm-manager/eslint-config/-/eslint-config-0.0.2.tgz#94cc8c3fb4f51f870b235893dc134fc6c423ae85"

-"@scm-manager/ui-bundler@^0.0.21":
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.21.tgz#f8b5fa355415cc67b8aaf8744e1701a299dff647"
+"@scm-manager/ui-bundler@^0.0.22":
+  version "0.0.22"
+  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.22.tgz#6eaed4e1f0b1fbc6ed1ebbf7eb0f5585f760949a"
  dependencies:
    "@babel/core" "^7.0.0"
    "@babel/plugin-proposal-class-properties" "^7.0.0"
@@ -1121,6 +1167,23 @@ babel-messages@^6.23.0:
  dependencies:
    babel-runtime "^6.22.0"

+babel-plugin-emotion@^9.2.11:
+  version "9.2.11"
+  resolved "https://registry.yarnpkg.com/babel-plugin-emotion/-/babel-plugin-emotion-9.2.11.tgz#319c005a9ee1d15bb447f59fe504c35fd5807728"
+  dependencies:
+    "@babel/helper-module-imports" "^7.0.0"
+    "@emotion/babel-utils" "^0.6.4"
+    "@emotion/hash" "^0.6.2"
+    "@emotion/memoize" "^0.6.1"
+    "@emotion/stylis" "^0.7.0"
+    babel-plugin-macros "^2.0.0"
+    babel-plugin-syntax-jsx "^6.18.0"
+    convert-source-map "^1.5.0"
+    find-root "^1.1.0"
+    mkdirp "^0.5.1"
+    source-map "^0.5.7"
+    touch "^2.0.1"
+
 babel-plugin-istanbul@^4.1.6:
  version "4.1.6"
  resolved "http://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
@@ -1134,6 +1197,17 @@ babel-plugin-jest-hoist@^23.2.0:
  version "23.2.0"
  resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-23.2.0.tgz#e61fae05a1ca8801aadee57a6d66b8cefaf44167"

+babel-plugin-macros@^2.0.0:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-macros/-/babel-plugin-macros-2.4.2.tgz#21b1a2e82e2130403c5ff785cba6548e9b644b28"
+  dependencies:
+    cosmiconfig "^5.0.5"
+    resolve "^1.8.1"
+
+babel-plugin-syntax-jsx@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
+
 babel-plugin-syntax-object-rest-spread@^6.13.0:
  version "6.13.0"
  resolved "http://registry.npmjs.org/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
@@ -1633,12 +1707,24 @@ cached-path-relative@^1.0.0:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.1.tgz#d09c4b52800aa4c078e2dd81a869aac90d2e54e7"

+caller-callsite@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-callsite/-/caller-callsite-2.0.0.tgz#847e0fce0a223750a9a027c54b33731ad3154134"
+  dependencies:
+    callsites "^2.0.0"
+
 caller-path@^0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
  dependencies:
    callsites "^0.2.0"

+caller-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-2.0.0.tgz#468f83044e369ab2010fac5f06ceee15bb2cb1f4"
+  dependencies:
+    caller-callsite "^2.0.0"
+
 callsite@1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
@@ -1782,7 +1868,7 @@ class-utils@^0.3.5:
    isobject "^3.0.0"
    static-extend "^0.1.1"

-classnames@^2.2.6:
+classnames@^2.2.5, classnames@^2.2.6:
  version "2.2.6"
  resolved "https://registry.yarnpkg.com/classnames/-/classnames-2.2.6.tgz#43935bffdd291f326dad0a205309b38d00f650ce"

@@ -1966,7 +2052,7 @@ contains-path@^0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"

-convert-source-map@1.X, convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.5.1:
+convert-source-map@1.X, convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.5.0, convert-source-map@^1.5.1:
  version "1.6.0"
  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.6.0.tgz#51b537a8c43e0f04dec1993bffcdd504e758ac20"
  dependencies:
@@ -1992,6 +2078,15 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"

+cosmiconfig@^5.0.5:
+  version "5.0.7"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.7.tgz#39826b292ee0d78eda137dfa3173bd1c21a43b04"
+  dependencies:
+    import-fresh "^2.0.0"
+    is-directory "^0.3.1"
+    js-yaml "^3.9.0"
+    parse-json "^4.0.0"
+
 coveralls@^2.11.3:
  version "2.13.3"
  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.13.3.tgz#9ad7c2ae527417f361e8b626483f48ee92dd2bc7"
@@ -2009,6 +2104,18 @@ create-ecdh@^4.0.0:
    bn.js "^4.1.0"
    elliptic "^6.0.0"

+create-emotion@^9.2.12:
+  version "9.2.12"
+  resolved "https://registry.yarnpkg.com/create-emotion/-/create-emotion-9.2.12.tgz#0fc8e7f92c4f8bb924b0fef6781f66b1d07cb26f"
+  dependencies:
+    "@emotion/hash" "^0.6.2"
+    "@emotion/memoize" "^0.6.1"
+    "@emotion/stylis" "^0.7.0"
+    "@emotion/unitless" "^0.6.2"
+    csstype "^2.5.2"
+    stylis "^3.5.0"
+    stylis-rule-sheet "^0.0.10"
+
 create-hash@^1.1.0, create-hash@^1.1.2:
  version "1.2.0"
  resolved "http://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
@@ -2122,6 +2229,10 @@ cssstyle@^1.0.0:
  dependencies:
    cssom "0.3.x"

+csstype@^2.5.2:
+  version "2.5.7"
+  resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.5.7.tgz#bf9235d5872141eccfb2d16d82993c6b149179ff"
+
 d@1:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
@@ -2362,6 +2473,12 @@ doctrine@^2.1.0:
  dependencies:
    esutils "^2.0.2"

+dom-helpers@^3.3.1:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.4.0.tgz#e9b369700f959f62ecde5a6babde4bccd9169af8"
+  dependencies:
+    "@babel/runtime" "^7.1.2"
+
 dom-serializer@0, dom-serializer@~0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
@@ -2466,6 +2583,13 @@ emoji-regex@^6.5.1:
  version "6.5.1"
  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-6.5.1.tgz#9baea929b155565c11ea41c6626eaa65cef992c2"

+emotion@^9.1.2:
+  version "9.2.12"
+  resolved "https://registry.yarnpkg.com/emotion/-/emotion-9.2.12.tgz#53925aaa005614e65c6e43db8243c843574d1ea9"
+  dependencies:
+    babel-plugin-emotion "^9.2.11"
+    create-emotion "^9.2.12"
+
 encodeurl@~1.0.1, encodeurl@~1.0.2:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
@@ -2561,7 +2685,7 @@ enzyme@^3.5.0:
    rst-selector-parser "^2.2.3"
    string.prototype.trim "^1.1.2"

-error-ex@^1.2.0:
+error-ex@^1.2.0, error-ex@^1.3.1:
  version "1.3.2"
  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
  dependencies:
@@ -3070,6 +3194,10 @@ find-node-modules@^1.0.4:
    findup-sync "0.4.2"
    merge "^1.2.0"

+find-root@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.1.0.tgz#abcfc8ba76f708c42a97b3d685b7e9450bfb9ce4"
+
 find-up@^1.0.0:
  version "1.1.2"
  resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
@@ -3862,6 +3990,13 @@ immutable@^3:
  version "3.8.2"
  resolved "https://registry.yarnpkg.com/immutable/-/immutable-3.8.2.tgz#c2439951455bb39913daf281376f1530e104adf3"

+import-fresh@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
+  dependencies:
+    caller-path "^2.0.0"
+    resolve-from "^3.0.0"
+
 import-local@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/import-local/-/import-local-1.0.0.tgz#5e4ffdc03f4fe6c009c6729beb29631c2f8227bc"
@@ -4038,6 +4173,10 @@ is-descriptor@^1.0.0, is-descriptor@^1.0.2:
    is-data-descriptor "^1.0.0"
    kind-of "^6.0.2"

+is-directory@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+
 is-dotfile@^1.0.0:
  version "1.0.3"
  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
@@ -4689,7 +4828,7 @@ js-yaml@3.6.1:
    argparse "^1.0.7"
    esprima "^2.6.0"

-js-yaml@^3.12.0, js-yaml@^3.7.0:
+js-yaml@^3.12.0, js-yaml@^3.7.0, js-yaml@^3.9.0:
  version "3.12.0"
  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
  dependencies:
@@ -4743,6 +4882,10 @@ jsesc@~0.5.0:
  version "0.5.0"
  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"

+json-parse-better-errors@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
+
 json-schema-traverse@^0.3.0:
  version "0.3.1"
  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
@@ -5127,7 +5270,7 @@ log-driver@1.2.5:
  version "1.2.5"
  resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.5.tgz#7ae4ec257302fd790d557cb10c97100d857b0056"

-loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1:
+loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1, loose-envify@^1.4.0:
  version "1.4.0"
  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
  dependencies:
@@ -5216,6 +5359,10 @@ mem@^1.1.0:
  dependencies:
    mimic-fn "^1.0.0"

+memoize-one@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/memoize-one/-/memoize-one-4.0.3.tgz#cdfdd942853f1a1b4c71c5336b8c49da0bf0273c"
+
 memoizee@0.4.X:
  version "0.4.14"
  resolved "https://registry.yarnpkg.com/memoizee/-/memoizee-0.4.14.tgz#07a00f204699f9a95c2d9e77218271c7cd610d57"
@@ -5556,6 +5703,12 @@ nopt@^4.0.1:
    abbrev "1"
    osenv "^0.1.4"

+nopt@~1.0.10:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-1.0.10.tgz#6ddd21bd2a31417b92727dd585f8a6f37608ebee"
+  dependencies:
+    abbrev "1"
+
 normalize-package-data@^2.3.2:
  version "2.4.0"
  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
@@ -5907,6 +6060,13 @@ parse-json@^2.2.0:
  dependencies:
    error-ex "^1.2.0"

+parse-json@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"
+  dependencies:
+    error-ex "^1.3.1"
+    json-parse-better-errors "^1.0.1"
+
 parse-passwd@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
@@ -6279,6 +6439,12 @@ react-i18next@^7.11.0:
    html-parse-stringify2 "2.0.1"
    prop-types "^15.6.0"

+react-input-autosize@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/react-input-autosize/-/react-input-autosize-2.2.1.tgz#ec428fa15b1592994fb5f9aa15bb1eb6baf420f8"
+  dependencies:
+    prop-types "^15.5.8"
+
 react-is@^16.5.2:
  version "16.5.2"
  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.5.2.tgz#e2a7b7c3f5d48062eb769fcb123505eb928722e3"
@@ -6293,6 +6459,10 @@ react-jss@^8.6.1:
    prop-types "^15.6.0"
    theming "^1.3.0"

+react-lifecycles-compat@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
+
 react-router-dom@^4.3.1:
  version "4.3.1"
  resolved "https://registry.yarnpkg.com/react-router-dom/-/react-router-dom-4.3.1.tgz#4c2619fc24c4fa87c9fd18f4fb4a43fe63fbd5c6"
@@ -6323,6 +6493,18 @@ react-router@^4.3.1:
    prop-types "^15.6.1"
    warning "^4.0.1"

+react-select@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/react-select/-/react-select-2.1.2.tgz#7a3e4c2b9efcd8c44ae7cf6ebb8b060ef69c513c"
+  dependencies:
+    classnames "^2.2.5"
+    emotion "^9.1.2"
+    memoize-one "^4.0.0"
+    prop-types "^15.6.0"
+    raf "^3.4.0"
+    react-input-autosize "^2.2.1"
+    react-transition-group "^2.2.1"
+
 react-test-renderer@^16.0.0-0:
  version "16.5.2"
  resolved "https://registry.yarnpkg.com/react-test-renderer/-/react-test-renderer-16.5.2.tgz#92e9d2c6f763b9821b2e0b22f994ee675068b5ae"
@@ -6332,6 +6514,15 @@ react-test-renderer@^16.0.0-0:
    react-is "^16.5.2"
    schedule "^0.5.0"

+react-transition-group@^2.2.1:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-2.5.0.tgz#70bca0e3546102c4dc5cf3f5f57f73447cce6874"
+  dependencies:
+    dom-helpers "^3.3.1"
+    loose-envify "^1.4.0"
+    prop-types "^15.6.2"
+    react-lifecycles-compat "^3.0.4"
+
 react@^16.4.2:
  version "16.6.0"
  resolved "https://registry.yarnpkg.com/react/-/react-16.6.0.tgz#b34761cfaf3e30f5508bc732fb4736730b7da246"
@@ -6466,6 +6657,10 @@ regenerator-runtime@^0.11.0:
  version "0.11.1"
  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"

+regenerator-runtime@^0.12.0:
+  version "0.12.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.12.1.tgz#fa1a71544764c036f8c49b13a08b2594c9f8a0de"
+
 regenerator-transform@^0.13.3:
  version "0.13.3"
  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.13.3.tgz#264bd9ff38a8ce24b06e0636496b2c856b57bcbb"
@@ -6659,7 +6854,7 @@ resolve@1.1.7:
  version "1.1.7"
  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"

-resolve@^1.1.4, resolve@^1.1.6, resolve@^1.1.7, resolve@^1.3.2, resolve@^1.4.0, resolve@^1.5.0, resolve@^1.6.0:
+resolve@^1.1.4, resolve@^1.1.6, resolve@^1.1.7, resolve@^1.3.2, resolve@^1.4.0, resolve@^1.5.0, resolve@^1.6.0, resolve@^1.8.1:
  version "1.8.1"
  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
  dependencies:
@@ -7033,6 +7228,10 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.0, source-map@~0.6.1:
  version "0.6.1"
  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"

+source-map@^0.7.2:
+  version "0.7.3"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
+
 sparkles@^1.0.0:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/sparkles/-/sparkles-1.0.1.tgz#008db65edce6c50eec0c5e228e1945061dd0437c"
@@ -7243,6 +7442,14 @@ strip-json-comments@^2.0.1, strip-json-comments@~2.0.1:
  version "2.0.1"
  resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"

+stylis-rule-sheet@^0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/stylis-rule-sheet/-/stylis-rule-sheet-0.0.10.tgz#44e64a2b076643f4b52e5ff71efc04d8c3c4a430"
+
+stylis@^3.5.0:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/stylis/-/stylis-3.5.4.tgz#f665f25f5e299cf3d64654ab949a57c768b73fbe"
+
 subarg@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
@@ -7442,6 +7649,12 @@ to-regex@^3.0.1, to-regex@^3.0.2:
    regex-not "^1.0.2"
    safe-regex "^1.1.0"

+touch@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/touch/-/touch-2.0.2.tgz#ca0b2a3ae3211246a61b16ba9e6cbf1596287164"
+  dependencies:
+    nopt "~1.0.10"
+
 tough-cookie@>=2.3.3, tough-cookie@^2.3.4, tough-cookie@~2.4.3:
  version "2.4.3"
  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
--- a/scm-ui-components/packages/ui-types/package.json
+++ b/scm-ui-components/packages/ui-types/package.json
@@ -14,7 +14,7 @@
    "check": "flow check"
  },
  "devDependencies": {
-    "@scm-manager/ui-bundler": "^0.0.21"
+    "@scm-manager/ui-bundler": "^0.0.22"
  },
  "browserify": {
    "transform": [
@@ -33,4 +33,4 @@
      ]
    ]
  }
-}
+}
--- a/scm-ui-components/packages/ui-types/src/Autocomplete.js
+++ b/scm-ui-components/packages/ui-types/src/Autocomplete.js
@@ -0,0 +1,10 @@
+// @flow
+export type AutocompleteObject = {
+  id: string,
+  displayName: string
+};
+
+export type SelectValue = {
+  value: AutocompleteObject,
+  label: string
+};
--- a/scm-ui-components/packages/ui-types/src/index.js
+++ b/scm-ui-components/packages/ui-types/src/index.js
@@ -22,3 +22,5 @@ export type { IndexResources } from "./IndexResources";
 export type { Permission, PermissionCreateEntry, PermissionCollection } from "./RepositoryPermissions";

 export type { SubRepository, File } from "./Sources";
+
+export type { SelectValue, AutocompleteObject } from "./Autocomplete";
--- a/scm-ui-components/packages/ui-types/yarn.lock
+++ b/scm-ui-components/packages/ui-types/yarn.lock
@@ -707,9 +707,9 @@
  version "0.0.2"
  resolved "https://registry.yarnpkg.com/@scm-manager/eslint-config/-/eslint-config-0.0.2.tgz#94cc8c3fb4f51f870b235893dc134fc6c423ae85"

-"@scm-manager/ui-bundler@^0.0.21":
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.21.tgz#f8b5fa355415cc67b8aaf8744e1701a299dff647"
+"@scm-manager/ui-bundler@^0.0.22":
+  version "0.0.22"
+  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.22.tgz#6eaed4e1f0b1fbc6ed1ebbf7eb0f5585f760949a"
  dependencies:
    "@babel/core" "^7.0.0"
    "@babel/plugin-proposal-class-properties" "^7.0.0"
--- a/scm-ui/package.json
+++ b/scm-ui/package.json
@@ -28,6 +28,7 @@
    "react-redux": "^5.0.7",
    "react-router-dom": "^4.3.1",
    "react-router-redux": "^5.0.0-alpha.9",
+    "react-select": "^2.1.2",
    "react-syntax-highlighter": "^9.0.1",
    "redux": "^4.0.0",
    "redux-devtools-extension": "^2.13.5",
@@ -51,7 +52,7 @@
    "pre-commit": "jest && flow && eslint src"
  },
  "devDependencies": {
-    "@scm-manager/ui-bundler": "^0.0.21",
+    "@scm-manager/ui-bundler": "^0.0.22",
    "concat": "^1.0.3",
    "copyfiles": "^2.0.0",
    "enzyme": "^3.3.0",
--- a/scm-ui/public/locales/en/groups.json
+++ b/scm-ui/public/locales/en/groups.json
@@ -39,7 +39,13 @@
    "label": "Add member",
    "error": "Invalid member name"
  },
-  "group-form": {
+  "add-member-autocomplete": {
+    "placeholder": "Enter member",
+    "loading": "Loading...",
+    "no-options": "No suggestion available"
+    },
+
+"group-form": {
    "submit": "Submit",
    "name-error": "Group name is invalid",
    "description-error": "Description is invalid",
--- a/scm-ui/public/locales/en/repos.json
+++ b/scm-ui/public/locales/en/repos.json
@@ -84,11 +84,14 @@
    "label": "Branches"
  },
  "permission": {
+      "user": "User",
+      "group": "Group",
      "error-title": "Error",
      "error-subtitle": "Unknown permissions error",
      "name": "User or Group",
      "type": "Type",
      "group-permission": "Group Permission",
+      "user-permission": "User Permission",
      "edit-permission": {
        "delete-button": "Delete",
        "save-button": "Save Changes"
@@ -111,6 +114,13 @@
        "groupPermissionHelpText": "States if a permission is a group permission.",
        "nameHelpText": "Manage permissions for a specific user or group",
        "typeHelpText": "READ = read; WRITE = read and write; OWNER = read, write and also the ability to manage the properties and permissions"
+      },
+      "autocomplete": {
+        "no-group-options": "No group suggestion available",
+        "group-placeholder": "Enter group",
+        "no-user-options": "No user suggestion available",
+        "user-placeholder": "Enter user",
+        "loading": "Loading..."
      }
  },
  "help": {
--- a/scm-ui/src/groups/components/GroupForm.js
+++ b/scm-ui/src/groups/components/GroupForm.js
@@ -2,12 +2,12 @@
 import React from "react";
 import { translate } from "react-i18next";
 import {
+  AutocompleteAddEntryToTableField,
  InputField,
  SubmitButton,
-  Textarea,
-  AddEntryToTableField
+  Textarea
 } from "@scm-manager/ui-components";
-import type { Group } from "@scm-manager/ui-types";
+import type { Group, SelectValue } from "@scm-manager/ui-types";

 import * as validator from "./groupValidation";
 import MemberNameTable from "./MemberNameTable";
@@ -16,7 +16,8 @@ type Props = {
  t: string => string,
  submitForm: Group => void,
  loading?: boolean,
-  group?: Group
+  group?: Group,
+  loadUserSuggestions: string => any
 };

 type State = {
@@ -70,7 +71,7 @@ class GroupForm extends React.Component<Props, State> {

  render() {
    const { t, loading } = this.props;
-    const group = this.state.group;
+    const { group } = this.state;
    let nameField = null;
    if (!this.props.group) {
      nameField = (
@@ -97,15 +98,20 @@ class GroupForm extends React.Component<Props, State> {
          helpText={t("group-form.help.descriptionHelpText")}
        />
        <MemberNameTable
-          members={this.state.group.members}
+          members={group.members}
          memberListChanged={this.memberListChanged}
        />
-        <AddEntryToTableField
+
+        <AutocompleteAddEntryToTableField
          addEntry={this.addMember}
          disabled={false}
          buttonLabel={t("add-member-button.label")}
          fieldLabel={t("add-member-textfield.label")}
          errorMessage={t("add-member-textfield.error")}
+          loadSuggestions={this.props.loadUserSuggestions}
+          placeholder={t("add-member-autocomplete.placeholder")}
+          loadingMessage={t("add-member-autocomplete.loading")}
+          noOptionsMessage={t("add-member-autocomplete.no-options")}
        />
        <SubmitButton
          disabled={!this.isValid()}
@@ -126,8 +132,8 @@ class GroupForm extends React.Component<Props, State> {
    });
  };

-  addMember = (membername: string) => {
-    if (this.isMember(membername)) {
+  addMember = (value: SelectValue) => {
+    if (this.isMember(value.value.id)) {
      return;
    }

@@ -135,7 +141,7 @@ class GroupForm extends React.Component<Props, State> {
      ...this.state,
      group: {
        ...this.state.group,
-        members: [...this.state.group.members, membername]
+        members: [...this.state.group.members, value.value.id]
      }
    });
  };
--- a/scm-ui/src/groups/containers/AddGroup.js
+++ b/scm-ui/src/groups/containers/AddGroup.js
@@ -13,7 +13,10 @@ import {
 } from "../modules/groups";
 import type { Group } from "@scm-manager/ui-types";
 import type { History } from "history";
-import { getGroupsLink } from "../../modules/indexResource";
+import {
+  getGroupsLink,
+  getUserAutoCompleteLink
+} from "../../modules/indexResource";

 type Props = {
  t: string => string,
@@ -22,7 +25,8 @@ type Props = {
  loading?: boolean,
  error?: Error,
  resetForm: () => void,
-  createLink: string
+  createLink: string,
+  autocompleteLink: string
 };

 type State = {};
@@ -31,6 +35,7 @@ class AddGroup extends React.Component<Props, State> {
  componentDidMount() {
    this.props.resetForm();
  }
+
  render() {
    const { t, loading, error } = this.props;
    return (
@@ -43,12 +48,26 @@ class AddGroup extends React.Component<Props, State> {
          <GroupForm
            submitForm={group => this.createGroup(group)}
            loading={loading}
+            loadUserSuggestions={this.loadUserAutocompletion}
          />
        </div>
      </Page>
    );
  }

+  loadUserAutocompletion = (inputValue: string) => {
+    const url = this.props.autocompleteLink + "?q=";
+    return fetch(url + inputValue)
+      .then(response => response.json())
+      .then(json => {
+        return json.map(element => {
+          return {
+            value: element,
+            label: `${element.displayName} (${element.id})`
+          };
+        });
+      });
+  };
  groupCreated = () => {
    this.props.history.push("/groups");
  };
@@ -71,10 +90,12 @@ const mapStateToProps = state => {
  const loading = isCreateGroupPending(state);
  const error = getCreateGroupFailure(state);
  const createLink = getGroupsLink(state);
+  const autocompleteLink = getUserAutoCompleteLink(state);
  return {
    createLink,
    loading,
-    error
+    error,
+    autocompleteLink
  };
 };

--- a/scm-ui/src/groups/containers/EditGroup.js
+++ b/scm-ui/src/groups/containers/EditGroup.js
@@ -3,21 +3,23 @@ import React from "react";
 import { connect } from "react-redux";
 import GroupForm from "../components/GroupForm";
 import {
-  modifyGroup,
-  modifyGroupReset,
+  getModifyGroupFailure,
  isModifyGroupPending,
-  getModifyGroupFailure
+  modifyGroup,
+  modifyGroupReset
 } from "../modules/groups";
 import type { History } from "history";
 import { withRouter } from "react-router-dom";
 import type { Group } from "@scm-manager/ui-types";
 import { ErrorNotification } from "@scm-manager/ui-components";
+import { getUserAutoCompleteLink } from "../../modules/indexResource";

 type Props = {
  group: Group,
  modifyGroup: (group: Group, callback?: () => void) => void,
  modifyGroupReset: Group => void,
  fetchGroup: (name: string) => void,
+  autocompleteLink: string,
  history: History,
  loading?: boolean,
  error: Error
@@ -37,6 +39,20 @@ class EditGroup extends React.Component<Props> {
    this.props.modifyGroup(group, this.groupModified(group));
  };

+  loadUserAutocompletion = (inputValue: string) => {
+    const url = this.props.autocompleteLink + "?q=";
+    return fetch(url + inputValue)
+      .then(response => response.json())
+      .then(json => {
+        return json.map(element => {
+          return {
+            value: element,
+            label: `${element.displayName} (${element.id})`
+          };
+        });
+      });
+  };
+
  render() {
    const { group, loading, error } = this.props;
    return (
@@ -48,6 +64,7 @@ class EditGroup extends React.Component<Props> {
            this.modifyGroup(group);
          }}
          loading={loading}
+          loadUserSuggestions={this.loadUserAutocompletion}
        />
      </div>
    );
@@ -57,9 +74,11 @@ class EditGroup extends React.Component<Props> {
 const mapStateToProps = (state, ownProps) => {
  const loading = isModifyGroupPending(state, ownProps.group.name);
  const error = getModifyGroupFailure(state, ownProps.group.name);
+  const autocompleteLink = getUserAutoCompleteLink(state);
  return {
    loading,
-    error
+    error,
+    autocompleteLink
  };
 };

--- a/scm-ui/src/modules/indexResource.js
+++ b/scm-ui/src/modules/indexResource.js
@@ -2,7 +2,7 @@
 import * as types from "./types";

 import { apiClient } from "@scm-manager/ui-components";
-import type { Action, IndexResources } from "@scm-manager/ui-types";
+import type { Action, IndexResources, Link } from "@scm-manager/ui-types";
 import { isPending } from "./pending";
 import { getFailure } from "./failure";

@@ -100,6 +100,13 @@ export function getLink(state: Object, name: string) {
  }
 }

+export function getLinkCollection(state: Object, name: string): Link[] {
+  if (state.indexResources.links && state.indexResources.links[name]) {
+    return state.indexResources.links[name];
+  }
+  return [];
+}
+
 export function getUiPluginsLink(state: Object) {
  return getLink(state, "uiPlugins");
 }
@@ -143,3 +150,23 @@ export function getGitConfigLink(state: Object) {
 export function getSvnConfigLink(state: Object) {
  return getLink(state, "svnConfig");
 }
+
+export function getUserAutoCompleteLink(state: Object): string {
+  const link = getLinkCollection(state, "autocomplete").find(
+    i => i.name === "users"
+  );
+  if (link) {
+    return link.href;
+  }
+  return "";
+}
+
+export function getGroupAutoCompleteLink(state: Object): string {
+  const link = getLinkCollection(state, "autocomplete").find(
+    i => i.name === "groups"
+  );
+  if (link) {
+    return link.href;
+  }
+  return "";
+}
--- a/scm-ui/src/modules/indexResource.test.js
+++ b/scm-ui/src/modules/indexResource.test.js
@@ -20,7 +20,11 @@ import reducer, {
  getHgConfigLink,
  getGitConfigLink,
  getSvnConfigLink,
-  getLinks, getGroupsLink
+  getLinks,
+  getGroupsLink,
+  getLinkCollection,
+  getUserAutoCompleteLink,
+  getGroupAutoCompleteLink
 } from "./indexResource";

 const indexResourcesUnauthenticated = {
@@ -73,354 +77,404 @@ const indexResourcesAuthenticated = {
    },
    svnConfig: {
      href: "http://localhost:8081/scm/api/v2/config/svn"
-    }
+    },
+    autocomplete: [
+      {
+        href: "http://localhost:8081/scm/api/v2/autocomplete/users",
+        name: "users"
+      },
+      {
+        href: "http://localhost:8081/scm/api/v2/autocomplete/groups",
+        name: "groups"
+      }
+    ]
  }
 };

-describe("fetch index resource", () => {
-  const index_url = "/api/v2/";
-  const mockStore = configureMockStore([thunk]);
+describe("index resource", () => {
+  describe("fetch index resource", () => {
+    const index_url = "/api/v2/";
+    const mockStore = configureMockStore([thunk]);

-  afterEach(() => {
-    fetchMock.reset();
-    fetchMock.restore();
-  });
+    afterEach(() => {
+      fetchMock.reset();
+      fetchMock.restore();
+    });

-  it("should successfully fetch index resources when unauthenticated", () => {
-    fetchMock.getOnce(index_url, indexResourcesUnauthenticated);
+    it("should successfully fetch index resources when unauthenticated", () => {
+      fetchMock.getOnce(index_url, indexResourcesUnauthenticated);

-    const expectedActions = [
-      { type: FETCH_INDEXRESOURCES_PENDING },
-      {
-        type: FETCH_INDEXRESOURCES_SUCCESS,
-        payload: indexResourcesUnauthenticated
-      }
-    ];
+      const expectedActions = [
+        { type: FETCH_INDEXRESOURCES_PENDING },
+        {
+          type: FETCH_INDEXRESOURCES_SUCCESS,
+          payload: indexResourcesUnauthenticated
+        }
+      ];

-    const store = mockStore({});
-    return store.dispatch(fetchIndexResources()).then(() => {
-      expect(store.getActions()).toEqual(expectedActions);
+      const store = mockStore({});
+      return store.dispatch(fetchIndexResources()).then(() => {
+        expect(store.getActions()).toEqual(expectedActions);
+      });
+    });
+
+    it("should successfully fetch index resources when authenticated", () => {
+      fetchMock.getOnce(index_url, indexResourcesAuthenticated);
+
+      const expectedActions = [
+        { type: FETCH_INDEXRESOURCES_PENDING },
+        {
+          type: FETCH_INDEXRESOURCES_SUCCESS,
+          payload: indexResourcesAuthenticated
+        }
+      ];
+
+      const store = mockStore({});
+      return store.dispatch(fetchIndexResources()).then(() => {
+        expect(store.getActions()).toEqual(expectedActions);
+      });
+    });
+
+    it("should dispatch FETCH_INDEX_RESOURCES_FAILURE if request fails", () => {
+      fetchMock.getOnce(index_url, {
+        status: 500
+      });
+
+      const store = mockStore({});
+      return store.dispatch(fetchIndexResources()).then(() => {
+        const actions = store.getActions();
+        expect(actions[0].type).toEqual(FETCH_INDEXRESOURCES_PENDING);
+        expect(actions[1].type).toEqual(FETCH_INDEXRESOURCES_FAILURE);
+        expect(actions[1].payload).toBeDefined();
+      });
    });
  });

-  it("should successfully fetch index resources when authenticated", () => {
-    fetchMock.getOnce(index_url, indexResourcesAuthenticated);
+  describe("index resources reducer", () => {
+    it("should return empty object, if state and action is undefined", () => {
+      expect(reducer()).toEqual({});
+    });

-    const expectedActions = [
-      { type: FETCH_INDEXRESOURCES_PENDING },
-      {
-        type: FETCH_INDEXRESOURCES_SUCCESS,
-        payload: indexResourcesAuthenticated
-      }
-    ];
+    it("should return the same state, if the action is undefined", () => {
+      const state = { x: true };
+      expect(reducer(state)).toBe(state);
+    });

-    const store = mockStore({});
-    return store.dispatch(fetchIndexResources()).then(() => {
-      expect(store.getActions()).toEqual(expectedActions);
+    it("should return the same state, if the action is unknown to the reducer", () => {
+      const state = { x: true };
+      expect(reducer(state, { type: "EL_SPECIALE" })).toBe(state);
+    });
+
+    it("should store the index resources on FETCH_INDEXRESOURCES_SUCCESS", () => {
+      const newState = reducer(
+        {},
+        fetchIndexResourcesSuccess(indexResourcesAuthenticated)
+      );
+      expect(newState.links).toBe(indexResourcesAuthenticated._links);
    });
  });

-  it("should dispatch FETCH_INDEX_RESOURCES_FAILURE if request fails", () => {
-    fetchMock.getOnce(index_url, {
-      status: 500
+  describe("index resources selectors", () => {
+    const error = new Error("something goes wrong");
+
+    it("should return true, when fetch index resources is pending", () => {
+      const state = {
+        pending: {
+          [FETCH_INDEXRESOURCES]: true
+        }
+      };
+      expect(isFetchIndexResourcesPending(state)).toEqual(true);
    });

-    const store = mockStore({});
-    return store.dispatch(fetchIndexResources()).then(() => {
-      const actions = store.getActions();
-      expect(actions[0].type).toEqual(FETCH_INDEXRESOURCES_PENDING);
-      expect(actions[1].type).toEqual(FETCH_INDEXRESOURCES_FAILURE);
-      expect(actions[1].payload).toBeDefined();
+    it("should return false, when fetch index resources is not pending", () => {
+      expect(isFetchIndexResourcesPending({})).toEqual(false);
+    });
+
+    it("should return error when fetch index resources did fail", () => {
+      const state = {
+        failure: {
+          [FETCH_INDEXRESOURCES]: error
+        }
+      };
+      expect(getFetchIndexResourcesFailure(state)).toEqual(error);
+    });
+
+    it("should return undefined when fetch index resources did not fail", () => {
+      expect(getFetchIndexResourcesFailure({})).toBe(undefined);
+    });
+
+    it("should return all links", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getLinks(state)).toBe(indexResourcesAuthenticated._links);
+    });
+
+    // ui plugins link
+    it("should return ui plugins link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getUiPluginsLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/ui/plugins"
+      );
+    });
+
+    it("should return ui plugins links when unauthenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getUiPluginsLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/ui/plugins"
+      );
+    });
+
+    // me link
+    it("should return me link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getMeLink(state)).toBe("http://localhost:8081/scm/api/v2/me/");
+    });
+
+    it("should return undefined for me link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getMeLink(state)).toBe(undefined);
+    });
+
+    // logout link
+    it("should return logout link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getLogoutLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/auth/access_token"
+      );
+    });
+
+    it("should return undefined for logout link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getLogoutLink(state)).toBe(undefined);
+    });
+
+    // login link
+    it("should return login link when unauthenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getLoginLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/auth/access_token"
+      );
+    });
+
+    it("should return undefined for login link when authenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getLoginLink(state)).toBe(undefined);
+    });
+
+    // users link
+    it("should return users link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getUsersLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/users/"
+      );
+    });
+
+    it("should return undefined for users link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getUsersLink(state)).toBe(undefined);
+    });
+
+    // groups link
+    it("should return groups link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getGroupsLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/groups/"
+      );
+    });
+
+    it("should return undefined for groups link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getGroupsLink(state)).toBe(undefined);
+    });
+
+    // config link
+    it("should return config link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getConfigLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/config"
+      );
+    });
+
+    it("should return undefined for config link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getConfigLink(state)).toBe(undefined);
+    });
+
+    // repositories link
+    it("should return repositories link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getRepositoriesLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/repositories/"
+      );
+    });
+
+    it("should return config for repositories link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getRepositoriesLink(state)).toBe(undefined);
+    });
+
+    // hgConfig link
+    it("should return hgConfig link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getHgConfigLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/config/hg"
+      );
+    });
+
+    it("should return config for hgConfig link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getHgConfigLink(state)).toBe(undefined);
+    });
+
+    // gitConfig link
+    it("should return gitConfig link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getGitConfigLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/config/git"
+      );
+    });
+
+    it("should return config for gitConfig link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getGitConfigLink(state)).toBe(undefined);
+    });
+
+    // svnConfig link
+    it("should return svnConfig link when authenticated and has permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getSvnConfigLink(state)).toBe(
+        "http://localhost:8081/scm/api/v2/config/svn"
+      );
+    });
+
+    it("should return config for svnConfig link when unauthenticated or has not permission to see it", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesUnauthenticated._links
+        }
+      };
+      expect(getSvnConfigLink(state)).toBe(undefined);
+    });
+
+    // Autocomplete links
+    it("should return link collection", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getLinkCollection(state, "autocomplete")).toEqual(
+        indexResourcesAuthenticated._links.autocomplete
+      );
+    });
+
+    it("should return user autocomplete link", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getUserAutoCompleteLink(state)).toEqual(
+        "http://localhost:8081/scm/api/v2/autocomplete/users"
+      );
+    });
+
+    it("should return group autocomplete link", () => {
+      const state = {
+        indexResources: {
+          links: indexResourcesAuthenticated._links
+        }
+      };
+      expect(getGroupAutoCompleteLink(state)).toEqual(
+        "http://localhost:8081/scm/api/v2/autocomplete/groups"
+      );
    });
  });
 });
-
-describe("index resources reducer", () => {
-  it("should return empty object, if state and action is undefined", () => {
-    expect(reducer()).toEqual({});
-  });
-
-  it("should return the same state, if the action is undefined", () => {
-    const state = { x: true };
-    expect(reducer(state)).toBe(state);
-  });
-
-  it("should return the same state, if the action is unknown to the reducer", () => {
-    const state = { x: true };
-    expect(reducer(state, { type: "EL_SPECIALE" })).toBe(state);
-  });
-
-  it("should store the index resources on FETCH_INDEXRESOURCES_SUCCESS", () => {
-    const newState = reducer(
-      {},
-      fetchIndexResourcesSuccess(indexResourcesAuthenticated)
-    );
-    expect(newState.links).toBe(indexResourcesAuthenticated._links);
-  });
-});
-
-describe("index resources selectors", () => {
-  const error = new Error("something goes wrong");
-
-  it("should return true, when fetch index resources is pending", () => {
-    const state = {
-      pending: {
-        [FETCH_INDEXRESOURCES]: true
-      }
-    };
-    expect(isFetchIndexResourcesPending(state)).toEqual(true);
-  });
-
-  it("should return false, when fetch index resources is not pending", () => {
-    expect(isFetchIndexResourcesPending({})).toEqual(false);
-  });
-
-  it("should return error when fetch index resources did fail", () => {
-    const state = {
-      failure: {
-        [FETCH_INDEXRESOURCES]: error
-      }
-    };
-    expect(getFetchIndexResourcesFailure(state)).toEqual(error);
-  });
-
-  it("should return undefined when fetch index resources did not fail", () => {
-    expect(getFetchIndexResourcesFailure({})).toBe(undefined);
-  });
-
-  it("should return all links", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getLinks(state)).toBe(indexResourcesAuthenticated._links);
-  });
-
-  // ui plugins link
-  it("should return ui plugins link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getUiPluginsLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/ui/plugins"
-    );
-  });
-
-  it("should return ui plugins links when unauthenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getUiPluginsLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/ui/plugins"
-    );
-  });
-
-  // me link
-  it("should return me link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getMeLink(state)).toBe("http://localhost:8081/scm/api/v2/me/");
-  });
-
-  it("should return undefined for me link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getMeLink(state)).toBe(undefined);
-  });
-
-  // logout link
-  it("should return logout link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getLogoutLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/auth/access_token"
-    );
-  });
-
-  it("should return undefined for logout link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getLogoutLink(state)).toBe(undefined);
-  });
-
-  // login link
-  it("should return login link when unauthenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getLoginLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/auth/access_token"
-    );
-  });
-
-  it("should return undefined for login link when authenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getLoginLink(state)).toBe(undefined);
-  });
-
-  // users link
-  it("should return users link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getUsersLink(state)).toBe("http://localhost:8081/scm/api/v2/users/");
-  });
-
-  it("should return undefined for users link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getUsersLink(state)).toBe(undefined);
-  });
-
-  // groups link
-  it("should return groups link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getGroupsLink(state)).toBe("http://localhost:8081/scm/api/v2/groups/");
-  });
-
-  it("should return undefined for groups link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getGroupsLink(state)).toBe(undefined);
-  });
-
-  // config link
-  it("should return config link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getConfigLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/config"
-    );
-  });
-
-  it("should return undefined for config link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getConfigLink(state)).toBe(undefined);
-  });
-
-  // repositories link
-  it("should return repositories link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getRepositoriesLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/repositories/"
-    );
-  });
-
-  it("should return config for repositories link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getRepositoriesLink(state)).toBe(undefined);
-  });
-
-  // hgConfig link
-  it("should return hgConfig link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getHgConfigLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/config/hg"
-    );
-  });
-
-  it("should return config for hgConfig link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getHgConfigLink(state)).toBe(undefined);
-  });
-
-  // gitConfig link
-  it("should return gitConfig link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getGitConfigLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/config/git"
-    );
-  });
-
-  it("should return config for gitConfig link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getGitConfigLink(state)).toBe(undefined);
-  });
-
-  // svnConfig link
-  it("should return svnConfig link when authenticated and has permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesAuthenticated._links
-      }
-    };
-    expect(getSvnConfigLink(state)).toBe(
-      "http://localhost:8081/scm/api/v2/config/svn"
-    );
-  });
-
-  it("should return config for svnConfig link when unauthenticated or has not permission to see it", () => {
-    const state = {
-      indexResources: {
-        links: indexResourcesUnauthenticated._links
-      }
-    };
-    expect(getSvnConfigLink(state)).toBe(undefined);
-  });
-});
--- a/scm-ui/src/repos/permissions/components/CreatePermissionForm.js
+++ b/scm-ui/src/repos/permissions/components/CreatePermissionForm.js
@@ -1,23 +1,30 @@
 // @flow
 import React from "react";
-import {translate} from "react-i18next";
-import {Checkbox, InputField, SubmitButton} from "@scm-manager/ui-components";
+import { translate } from "react-i18next";
+import { Autocomplete, SubmitButton } from "@scm-manager/ui-components";
 import TypeSelector from "./TypeSelector";
-import type {PermissionCollection, PermissionCreateEntry} from "@scm-manager/ui-types";
+import type {
+  PermissionCollection,
+  PermissionCreateEntry,
+  SelectValue
+} from "@scm-manager/ui-types";
 import * as validator from "./permissionValidation";

 type Props = {
  t: string => string,
  createPermission: (permission: PermissionCreateEntry) => void,
  loading: boolean,
-  currentPermissions: PermissionCollection
+  currentPermissions: PermissionCollection,
+  groupAutoCompleteLink: string,
+  userAutoCompleteLink: string
 };

 type State = {
  name: string,
  type: string,
  groupPermission: boolean,
-  valid: boolean
+  valid: boolean,
+  value?: SelectValue
 };

 class CreatePermissionForm extends React.Component<Props, State> {
@@ -28,13 +35,95 @@ class CreatePermissionForm extends React.Component<Props, State> {
      name: "",
      type: "READ",
      groupPermission: false,
-      valid: true
+      valid: true,
+      value: undefined
    };
  }

+  permissionScopeChanged = event => {
+    const groupPermission = event.target.value === "GROUP_PERMISSION";
+    this.setState({
+      groupPermission: groupPermission,
+      valid: validator.isPermissionValid(
+        this.state.name,
+        groupPermission,
+        this.props.currentPermissions
+      )
+    });
+    this.setState({ ...this.state, groupPermission });
+  };
+
+  loadUserAutocompletion = (inputValue: string) => {
+    return this.loadAutocompletion(this.props.userAutoCompleteLink, inputValue);
+  };
+
+  loadGroupAutocompletion = (inputValue: string) => {
+    return this.loadAutocompletion(
+      this.props.groupAutoCompleteLink,
+      inputValue
+    );
+  };
+
+  loadAutocompletion(url: string, inputValue: string) {
+    const link = url + "?q=";
+    return fetch(link + inputValue)
+      .then(response => response.json())
+      .then(json => {
+        return json.map(element => {
+          const label = element.displayName
+            ? `${element.displayName} (${element.id})`
+            : element.id;
+          return {
+            value: element,
+            label
+          };
+        });
+      });
+  }
+  renderAutocompletionField = () => {
+    const { t } = this.props;
+    if (this.state.groupPermission) {
+      return (
+        <Autocomplete
+          loadSuggestions={this.loadGroupAutocompletion}
+          valueSelected={this.groupOrUserSelected}
+          value={this.state.value}
+          label={t("permission.group")}
+          noOptionsMessage={t("permission.autocomplete.no-group-options")}
+          loadingMessage={t("permission.autocomplete.loading")}
+          placeholder={t("permission.autocomplete.group-placeholder")}
+        />
+      );
+    }
+    return (
+      <Autocomplete
+        loadSuggestions={this.loadUserAutocompletion}
+        valueSelected={this.groupOrUserSelected}
+        value={this.state.value}
+        label={t("permission.user")}
+        noOptionsMessage={t("permission.autocomplete.no-user-options")}
+        loadingMessage={t("permission.autocomplete.loading")}
+        placeholder={t("permission.autocomplete.user-placeholder")}
+      />
+    );
+  };
+
+  groupOrUserSelected = (value: SelectValue) => {
+    this.setState({
+      value,
+      name: value.value.id,
+      valid: validator.isPermissionValid(
+        value.value.id,
+        this.state.groupPermission,
+        this.props.currentPermissions
+      )
+    });
+  };
+
  render() {
    const { t, loading } = this.props;
-    const { name, type, groupPermission } = this.state;
+
+    const { type } = this.state;

    return (
      <div>
@@ -42,20 +131,30 @@ class CreatePermissionForm extends React.Component<Props, State> {
          {t("permission.add-permission.add-permission-heading")}
        </h2>
        <form onSubmit={this.submit}>
-          <InputField
-            label={t("permission.name")}
-            value={name ? name : ""}
-            onChange={this.handleNameChange}
-            validationError={!this.state.valid}
-            errorMessage={t("permission.add-permission.name-input-invalid")}
-            helpText={t("permission.help.nameHelpText")}
-          />
-          <Checkbox
-            label={t("permission.group-permission")}
-            checked={groupPermission ? groupPermission : false}
-            onChange={this.handleGroupPermissionChange}
-            helpText={t("permission.help.groupPermissionHelpText")}
-          />
+          <div className="control">
+            <label className="radio">
+              <input
+                type="radio"
+                name="permission_scope"
+                checked={!this.state.groupPermission}
+                value="USER_PERMISSION"
+                onChange={this.permissionScopeChanged}
+              />
+              {t("permission.user-permission")}
+            </label>
+            <label className="radio">
+              <input
+                type="radio"
+                name="permission_scope"
+                value="GROUP_PERMISSION"
+                checked={this.state.groupPermission}
+                onChange={this.permissionScopeChanged}
+              />
+              {t("permission.group-permission")}
+            </label>
+          </div>
+          {this.renderAutocompletionField()}
+
          <TypeSelector
            label={t("permission.type")}
            helpText={t("permission.help.typeHelpText")}
@@ -96,27 +195,6 @@ class CreatePermissionForm extends React.Component<Props, State> {
      type: type
    });
  };
-
-  handleNameChange = (name: string) => {
-    this.setState({
-      name: name,
-      valid: validator.isPermissionValid(
-        name,
-        this.state.groupPermission,
-        this.props.currentPermissions
-      )
-    });
-  };
-  handleGroupPermissionChange = (groupPermission: boolean) => {
-    this.setState({
-      groupPermission: groupPermission,
-      valid: validator.isPermissionValid(
-        this.state.name,
-        groupPermission,
-        this.props.currentPermissions
-      )
-    });
-  };
 }

 export default translate("repos")(CreatePermissionForm);
--- a/scm-ui/src/repos/permissions/containers/Permissions.js
+++ b/scm-ui/src/repos/permissions/containers/Permissions.js
@@ -27,6 +27,10 @@ import SinglePermission from "./SinglePermission";
 import CreatePermissionForm from "../components/CreatePermissionForm";
 import type { History } from "history";
 import { getPermissionsLink } from "../../modules/repos";
+import {
+  getGroupAutoCompleteLink,
+  getUserAutoCompleteLink
+} from "../../../modules/indexResource";

 type Props = {
  namespace: string,
@@ -37,6 +41,8 @@ type Props = {
  hasPermissionToCreate: boolean,
  loadingCreatePermission: boolean,
  permissionsLink: string,
+  groupAutoCompleteLink: string,
+  userAutoCompleteLink: string,

  //dispatch functions
  fetchPermissions: (link: string, namespace: string, repoName: string) => void,
@@ -92,7 +98,9 @@ class Permissions extends React.Component<Props> {
      namespace,
      repoName,
      loadingCreatePermission,
-      hasPermissionToCreate
+      hasPermissionToCreate,
+      userAutoCompleteLink,
+      groupAutoCompleteLink
    } = this.props;
    if (error) {
      return (
@@ -113,6 +121,8 @@ class Permissions extends React.Component<Props> {
        createPermission={permission => this.createPermission(permission)}
        loading={loadingCreatePermission}
        currentPermissions={permissions}
+        userAutoCompleteLink={userAutoCompleteLink}
+        groupAutoCompleteLink={groupAutoCompleteLink}
      />
    ) : null;

@@ -165,6 +175,8 @@ const mapStateToProps = (state, ownProps) => {
  );
  const hasPermissionToCreate = hasCreatePermission(state, namespace, repoName);
  const permissionsLink = getPermissionsLink(state, namespace, repoName);
+  const groupAutoCompleteLink = getGroupAutoCompleteLink(state);
+  const userAutoCompleteLink = getUserAutoCompleteLink(state);
  return {
    namespace,
    repoName,
@@ -173,7 +185,9 @@ const mapStateToProps = (state, ownProps) => {
    permissions,
    hasPermissionToCreate,
    loadingCreatePermission,
-    permissionsLink
+    permissionsLink,
+    groupAutoCompleteLink,
+    userAutoCompleteLink
  };
 };

@@ -189,7 +203,9 @@ const mapDispatchToProps = dispatch => {
      repoName: string,
      callback?: () => void
    ) => {
-      dispatch(createPermission(link, permission, namespace, repoName, callback));
+      dispatch(
+        createPermission(link, permission, namespace, repoName, callback)
+      );
    },
    createPermissionReset: (namespace: string, repoName: string) => {
      dispatch(createPermissionReset(namespace, repoName));
--- a/scm-ui/yarn.lock
+++ b/scm-ui/yarn.lock
@@ -583,6 +583,12 @@
    "@babel/plugin-transform-react-jsx-self" "^7.0.0"
    "@babel/plugin-transform-react-jsx-source" "^7.0.0"

+"@babel/runtime@^7.1.2":
+  version "7.1.5"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.1.5.tgz#4170907641cf1f61508f563ece3725150cc6fe39"
+  dependencies:
+    regenerator-runtime "^0.12.0"
+
 "@babel/template@^7.1.0", "@babel/template@^7.1.2":
  version "7.1.2"
  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.1.2.tgz#090484a574fef5a2d2d7726a674eceda5c5b5644"
@@ -613,6 +619,46 @@
    lodash "^4.17.10"
    to-fast-properties "^2.0.0"

+"@emotion/babel-utils@^0.6.4":
+  version "0.6.10"
+  resolved "https://registry.yarnpkg.com/@emotion/babel-utils/-/babel-utils-0.6.10.tgz#83dbf3dfa933fae9fc566e54fbb45f14674c6ccc"
+  dependencies:
+    "@emotion/hash" "^0.6.6"
+    "@emotion/memoize" "^0.6.6"
+    "@emotion/serialize" "^0.9.1"
+    convert-source-map "^1.5.1"
+    find-root "^1.1.0"
+    source-map "^0.7.2"
+
+"@emotion/hash@^0.6.2", "@emotion/hash@^0.6.6":
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/@emotion/hash/-/hash-0.6.6.tgz#62266c5f0eac6941fece302abad69f2ee7e25e44"
+
+"@emotion/memoize@^0.6.1", "@emotion/memoize@^0.6.6":
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/@emotion/memoize/-/memoize-0.6.6.tgz#004b98298d04c7ca3b4f50ca2035d4f60d2eed1b"
+
+"@emotion/serialize@^0.9.1":
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/@emotion/serialize/-/serialize-0.9.1.tgz#a494982a6920730dba6303eb018220a2b629c145"
+  dependencies:
+    "@emotion/hash" "^0.6.6"
+    "@emotion/memoize" "^0.6.6"
+    "@emotion/unitless" "^0.6.7"
+    "@emotion/utils" "^0.8.2"
+
+"@emotion/stylis@^0.7.0":
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/@emotion/stylis/-/stylis-0.7.1.tgz#50f63225e712d99e2b2b39c19c70fff023793ca5"
+
+"@emotion/unitless@^0.6.2", "@emotion/unitless@^0.6.7":
+  version "0.6.7"
+  resolved "https://registry.yarnpkg.com/@emotion/unitless/-/unitless-0.6.7.tgz#53e9f1892f725b194d5e6a1684a7b394df592397"
+
+"@emotion/utils@^0.8.2":
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/@emotion/utils/-/utils-0.8.2.tgz#576ff7fb1230185b619a75d258cbc98f0867a8dc"
+
 "@fortawesome/fontawesome-free@^5.3.1":
  version "5.3.1"
  resolved "https://registry.yarnpkg.com/@fortawesome/fontawesome-free/-/fontawesome-free-5.3.1.tgz#5466b8f31c1f493a96754c1426c25796d0633dd9"
@@ -652,9 +698,9 @@
  version "0.0.2"
  resolved "https://registry.yarnpkg.com/@scm-manager/eslint-config/-/eslint-config-0.0.2.tgz#94cc8c3fb4f51f870b235893dc134fc6c423ae85"

-"@scm-manager/ui-bundler@^0.0.21":
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.21.tgz#f8b5fa355415cc67b8aaf8744e1701a299dff647"
+"@scm-manager/ui-bundler@^0.0.22":
+  version "0.0.22"
+  resolved "https://registry.yarnpkg.com/@scm-manager/ui-bundler/-/ui-bundler-0.0.22.tgz#6eaed4e1f0b1fbc6ed1ebbf7eb0f5585f760949a"
  dependencies:
    "@babel/core" "^7.0.0"
    "@babel/plugin-proposal-class-properties" "^7.0.0"
@@ -1144,6 +1190,23 @@ babel-messages@^6.23.0:
  dependencies:
    babel-runtime "^6.22.0"

+babel-plugin-emotion@^9.2.11:
+  version "9.2.11"
+  resolved "https://registry.yarnpkg.com/babel-plugin-emotion/-/babel-plugin-emotion-9.2.11.tgz#319c005a9ee1d15bb447f59fe504c35fd5807728"
+  dependencies:
+    "@babel/helper-module-imports" "^7.0.0"
+    "@emotion/babel-utils" "^0.6.4"
+    "@emotion/hash" "^0.6.2"
+    "@emotion/memoize" "^0.6.1"
+    "@emotion/stylis" "^0.7.0"
+    babel-plugin-macros "^2.0.0"
+    babel-plugin-syntax-jsx "^6.18.0"
+    convert-source-map "^1.5.0"
+    find-root "^1.1.0"
+    mkdirp "^0.5.1"
+    source-map "^0.5.7"
+    touch "^2.0.1"
+
 babel-plugin-istanbul@^4.1.6:
  version "4.1.6"
  resolved "http://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
@@ -1157,6 +1220,17 @@ babel-plugin-jest-hoist@^23.2.0:
  version "23.2.0"
  resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-23.2.0.tgz#e61fae05a1ca8801aadee57a6d66b8cefaf44167"

+babel-plugin-macros@^2.0.0:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-macros/-/babel-plugin-macros-2.4.2.tgz#21b1a2e82e2130403c5ff785cba6548e9b644b28"
+  dependencies:
+    cosmiconfig "^5.0.5"
+    resolve "^1.8.1"
+
+babel-plugin-syntax-jsx@^6.18.0:
+  version "6.18.0"
+  resolved "http://registry.npmjs.org/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
+
 babel-plugin-syntax-object-rest-spread@^6.13.0:
  version "6.13.0"
  resolved "http://registry.npmjs.org/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
@@ -1667,12 +1741,24 @@ cached-path-relative@^1.0.0:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.1.tgz#d09c4b52800aa4c078e2dd81a869aac90d2e54e7"

+caller-callsite@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-callsite/-/caller-callsite-2.0.0.tgz#847e0fce0a223750a9a027c54b33731ad3154134"
+  dependencies:
+    callsites "^2.0.0"
+
 caller-path@^0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
  dependencies:
    callsites "^0.2.0"

+caller-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-2.0.0.tgz#468f83044e369ab2010fac5f06ceee15bb2cb1f4"
+  dependencies:
+    caller-callsite "^2.0.0"
+
 callsite@1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
@@ -2049,7 +2135,7 @@ contains-path@^0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"

-convert-source-map@1.X, convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.5.1:
+convert-source-map@1.X, convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.5.0, convert-source-map@^1.5.1:
  version "1.6.0"
  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.6.0.tgz#51b537a8c43e0f04dec1993bffcdd504e758ac20"
  dependencies:
@@ -2086,6 +2172,15 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"

+cosmiconfig@^5.0.5:
+  version "5.0.7"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.7.tgz#39826b292ee0d78eda137dfa3173bd1c21a43b04"
+  dependencies:
+    import-fresh "^2.0.0"
+    is-directory "^0.3.1"
+    js-yaml "^3.9.0"
+    parse-json "^4.0.0"
+
 coveralls@^2.11.3:
  version "2.13.3"
  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.13.3.tgz#9ad7c2ae527417f361e8b626483f48ee92dd2bc7"
@@ -2103,6 +2198,18 @@ create-ecdh@^4.0.0:
    bn.js "^4.1.0"
    elliptic "^6.0.0"

+create-emotion@^9.2.12:
+  version "9.2.12"
+  resolved "https://registry.yarnpkg.com/create-emotion/-/create-emotion-9.2.12.tgz#0fc8e7f92c4f8bb924b0fef6781f66b1d07cb26f"
+  dependencies:
+    "@emotion/hash" "^0.6.2"
+    "@emotion/memoize" "^0.6.1"
+    "@emotion/stylis" "^0.7.0"
+    "@emotion/unitless" "^0.6.2"
+    csstype "^2.5.2"
+    stylis "^3.5.0"
+    stylis-rule-sheet "^0.0.10"
+
 create-hash@^1.1.0, create-hash@^1.1.2:
  version "1.2.0"
  resolved "http://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
@@ -2213,6 +2320,10 @@ cssstyle@^1.0.0:
  dependencies:
    cssom "0.3.x"

+csstype@^2.5.2:
+  version "2.5.7"
+  resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.5.7.tgz#bf9235d5872141eccfb2d16d82993c6b149179ff"
+
 currently-unhandled@^0.4.1:
  version "0.4.1"
  resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -2476,6 +2587,12 @@ doctrine@^2.1.0:
  dependencies:
    esutils "^2.0.2"

+dom-helpers@^3.3.1:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.4.0.tgz#e9b369700f959f62ecde5a6babde4bccd9169af8"
+  dependencies:
+    "@babel/runtime" "^7.1.2"
+
 dom-serializer@0, dom-serializer@~0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
@@ -2584,6 +2701,13 @@ emoji-regex@^6.5.1:
  version "6.5.1"
  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-6.5.1.tgz#9baea929b155565c11ea41c6626eaa65cef992c2"

+emotion@^9.1.2:
+  version "9.2.12"
+  resolved "https://registry.yarnpkg.com/emotion/-/emotion-9.2.12.tgz#53925aaa005614e65c6e43db8243c843574d1ea9"
+  dependencies:
+    babel-plugin-emotion "^9.2.11"
+    create-emotion "^9.2.12"
+
 encodeurl@~1.0.1, encodeurl@~1.0.2:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
@@ -3205,6 +3329,10 @@ find-node-modules@^1.0.4:
    findup-sync "0.4.2"
    merge "^1.2.0"

+find-root@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.1.0.tgz#abcfc8ba76f708c42a97b3d685b7e9450bfb9ce4"
+
 find-up@^1.0.0:
  version "1.1.2"
  resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
@@ -4096,6 +4224,13 @@ immutable@^3:
  version "3.8.2"
  resolved "https://registry.yarnpkg.com/immutable/-/immutable-3.8.2.tgz#c2439951455bb39913daf281376f1530e104adf3"

+import-fresh@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
+  dependencies:
+    caller-path "^2.0.0"
+    resolve-from "^3.0.0"
+
 import-local@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/import-local/-/import-local-1.0.0.tgz#5e4ffdc03f4fe6c009c6729beb29631c2f8227bc"
@@ -4297,6 +4432,10 @@ is-descriptor@^1.0.0, is-descriptor@^1.0.2:
    is-data-descriptor "^1.0.0"
    kind-of "^6.0.2"

+is-directory@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+
 is-dotfile@^1.0.0:
  version "1.0.3"
  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
@@ -4956,7 +5095,7 @@ js-yaml@3.6.1:
    argparse "^1.0.7"
    esprima "^2.6.0"

-js-yaml@^3.12.0, js-yaml@^3.7.0:
+js-yaml@^3.12.0, js-yaml@^3.7.0, js-yaml@^3.9.0:
  version "3.12.0"
  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
  dependencies:
@@ -5431,7 +5570,7 @@ log-driver@1.2.5:
  version "1.2.5"
  resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.5.tgz#7ae4ec257302fd790d557cb10c97100d857b0056"

-loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1:
+loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1, loose-envify@^1.4.0:
  version "1.4.0"
  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
  dependencies:
@@ -5542,6 +5681,10 @@ mem@^1.1.0:
  dependencies:
    mimic-fn "^1.0.0"

+memoize-one@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/memoize-one/-/memoize-one-4.0.3.tgz#cdfdd942853f1a1b4c71c5336b8c49da0bf0273c"
+
 memoizee@0.4.X:
  version "0.4.14"
  resolved "https://registry.yarnpkg.com/memoizee/-/memoizee-0.4.14.tgz#07a00f204699f9a95c2d9e77218271c7cd610d57"
@@ -5959,7 +6102,7 @@ noms@0.0.0:
    inherits "^2.0.1"
    readable-stream "~1.0.31"

-nopt@1.0.10:
+nopt@1.0.10, nopt@~1.0.10:
  version "1.0.10"
  resolved "https://registry.yarnpkg.com/nopt/-/nopt-1.0.10.tgz#6ddd21bd2a31417b92727dd585f8a6f37608ebee"
  dependencies:
@@ -6805,6 +6948,12 @@ react-i18next@^7.9.0:
    html-parse-stringify2 "2.0.1"
    prop-types "^15.6.0"

+react-input-autosize@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/react-input-autosize/-/react-input-autosize-2.2.1.tgz#ec428fa15b1592994fb5f9aa15bb1eb6baf420f8"
+  dependencies:
+    prop-types "^15.5.8"
+
 react-is@^16.5.2:
  version "16.5.2"
  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.5.2.tgz#e2a7b7c3f5d48062eb769fcb123505eb928722e3"
@@ -6819,6 +6968,10 @@ react-jss@^8.6.0:
    prop-types "^15.6.0"
    theming "^1.3.0"

+react-lifecycles-compat@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
+
 react-redux@^5.0.7:
  version "5.0.7"
  resolved "http://registry.npmjs.org/react-redux/-/react-redux-5.0.7.tgz#0dc1076d9afb4670f993ffaef44b8f8c1155a4c8"
@@ -6868,6 +7021,18 @@ react-router@^4.2.0, react-router@^4.3.1:
    prop-types "^15.6.1"
    warning "^4.0.1"

+react-select@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/react-select/-/react-select-2.1.2.tgz#7a3e4c2b9efcd8c44ae7cf6ebb8b060ef69c513c"
+  dependencies:
+    classnames "^2.2.5"
+    emotion "^9.1.2"
+    memoize-one "^4.0.0"
+    prop-types "^15.6.0"
+    raf "^3.4.0"
+    react-input-autosize "^2.2.1"
+    react-transition-group "^2.2.1"
+
 react-syntax-highlighter@^9.0.1:
  version "9.0.1"
  resolved "https://registry.yarnpkg.com/react-syntax-highlighter/-/react-syntax-highlighter-9.0.1.tgz#cad91692e1976f68290f24762ac3451b1fec3d26"
@@ -6887,6 +7052,15 @@ react-test-renderer@^16.0.0-0, react-test-renderer@^16.4.1:
    react-is "^16.5.2"
    schedule "^0.5.0"

+react-transition-group@^2.2.1:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-2.5.0.tgz#70bca0e3546102c4dc5cf3f5f57f73447cce6874"
+  dependencies:
+    dom-helpers "^3.3.1"
+    loose-envify "^1.4.0"
+    prop-types "^15.6.2"
+    react-lifecycles-compat "^3.0.4"
+
 react@^16.4.2:
  version "16.5.2"
  resolved "https://registry.yarnpkg.com/react/-/react-16.5.2.tgz#19f6b444ed139baa45609eee6dc3d318b3895d42"
@@ -7068,6 +7242,10 @@ regenerator-runtime@^0.11.0, regenerator-runtime@^0.11.1:
  version "0.11.1"
  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"

+regenerator-runtime@^0.12.0:
+  version "0.12.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.12.1.tgz#fa1a71544764c036f8c49b13a08b2594c9f8a0de"
+
 regenerator-transform@^0.13.3:
  version "0.13.3"
  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.13.3.tgz#264bd9ff38a8ce24b06e0636496b2c856b57bcbb"
@@ -7286,7 +7464,7 @@ resolve@1.1.7:
  version "1.1.7"
  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"

-resolve@^1.1.4, resolve@^1.1.6, resolve@^1.1.7, resolve@^1.3.2, resolve@^1.4.0, resolve@^1.5.0, resolve@^1.6.0:
+resolve@^1.1.4, resolve@^1.1.6, resolve@^1.1.7, resolve@^1.3.2, resolve@^1.4.0, resolve@^1.5.0, resolve@^1.6.0, resolve@^1.8.1:
  version "1.8.1"
  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
  dependencies:
@@ -7683,6 +7861,10 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.0, source-map@~0.6.1:
  version "0.6.1"
  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"

+source-map@^0.7.2:
+  version "0.7.3"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
+
 space-separated-tokens@^1.0.0:
  version "1.1.2"
  resolved "https://registry.yarnpkg.com/space-separated-tokens/-/space-separated-tokens-1.1.2.tgz#e95ab9d19ae841e200808cd96bc7bd0adbbb3412"
@@ -7933,6 +8115,14 @@ strip-json-comments@^2.0.1, strip-json-comments@~2.0.1:
  version "2.0.1"
  resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"

+stylis-rule-sheet@^0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/stylis-rule-sheet/-/stylis-rule-sheet-0.0.10.tgz#44e64a2b076643f4b52e5ff71efc04d8c3c4a430"
+
+stylis@^3.5.0:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/stylis/-/stylis-3.5.4.tgz#f665f25f5e299cf3d64654ab949a57c768b73fbe"
+
 subarg@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
@@ -8135,6 +8325,12 @@ to-regex@^3.0.1, to-regex@^3.0.2:
    regex-not "^1.0.2"
    safe-regex "^1.1.0"

+touch@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/touch/-/touch-2.0.2.tgz#ca0b2a3ae3211246a61b16ba9e6cbf1596287164"
+  dependencies:
+    nopt "~1.0.10"
+
 tough-cookie@>=2.3.3, tough-cookie@^2.3.4, tough-cookie@~2.4.3:
  version "2.4.3"
  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
--- a/scm-webapp/pom.xml
+++ b/scm-webapp/pom.xml
@@ -72,8 +72,18 @@
    
    <dependency>
      <groupId>io.jsonwebtoken</groupId>
-      <artifactId>jjwt</artifactId>
-      <version>0.4</version>
+      <artifactId>jjwt-impl</artifactId>
+      <version>${jjwt.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>io.jsonwebtoken</groupId>
+      <artifactId>jjwt-api</artifactId>
+      <version>${jjwt.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>io.jsonwebtoken</groupId>
+      <artifactId>jjwt-jackson</artifactId>
+      <version>${jjwt.version}</version>
    </dependency>

    <!-- json -->
@@ -540,6 +550,7 @@
    <scm.stage>DEVELOPMENT</scm.stage>
    <scm.home>target/scm-it</scm.home>
    <environment.profile>default</environment.profile>
+    <jjwt.version>0.10.5</jjwt.version>
    <selenium.version>2.53.1</selenium.version>
    <wagon.version>1.0</wagon.version>
    <mustache.version>0.8.17</mustache.version>
--- a/scm-webapp/src/main/java/sonia/scm/ScmServletModule.java
+++ b/scm-webapp/src/main/java/sonia/scm/ScmServletModule.java
@@ -83,8 +83,10 @@ import sonia.scm.security.AuthorizationChangedEventProducer;
 import sonia.scm.security.CipherHandler;
 import sonia.scm.security.CipherUtil;
 import sonia.scm.security.ConfigurableLoginAttemptHandler;
+import sonia.scm.security.DefaultJwtAccessTokenRefreshStrategy;
 import sonia.scm.security.DefaultKeyGenerator;
 import sonia.scm.security.DefaultSecuritySystem;
+import sonia.scm.security.JwtAccessTokenRefreshStrategy;
 import sonia.scm.security.KeyGenerator;
 import sonia.scm.security.LoginAttemptHandler;
 import sonia.scm.security.SecuritySystem;
--- a/scm-webapp/src/main/java/sonia/scm/security/DefaultJwtAccessTokenRefreshStrategy.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/DefaultJwtAccessTokenRefreshStrategy.java
@@ -0,0 +1,10 @@
+package sonia.scm.security;
+
+import sonia.scm.plugin.Extension;
+
+@Extension
+public class DefaultJwtAccessTokenRefreshStrategy extends PercentageJwtAccessTokenRefreshStrategy {
+  public DefaultJwtAccessTokenRefreshStrategy() {
+    super(0.5F);
+  }
+}
--- a/scm-webapp/src/main/java/sonia/scm/security/JwtAccessToken.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/JwtAccessToken.java
@@ -31,9 +31,14 @@
 package sonia.scm.security;

 import io.jsonwebtoken.Claims;
+
+import java.util.Collections;
 import java.util.Date;
+import java.util.Map;
 import java.util.Optional;

+import static java.util.Optional.ofNullable;
+
 /**
 * Jwt implementation of {@link AccessToken}.
 * 
@@ -41,7 +46,9 @@ import java.util.Optional;
 * @since 2.0.0
 */
 public final class JwtAccessToken implements AccessToken {
-  
+
+  public static final String REFRESHABLE_UNTIL_CLAIM_KEY = "scm-manager.refreshExpiration";
+  public static final String PARENT_TOKEN_ID_CLAIM_KEY = "scm-manager.parentTokenId";
  private final Claims claims;
  private final String compact;

@@ -75,6 +82,15 @@ public final class JwtAccessToken implements AccessToken {
    return claims.getExpiration();
  }

+  @Override
+  public Optional<Date> getRefreshExpiration() {
+    return ofNullable(claims.get(REFRESHABLE_UNTIL_CLAIM_KEY, Date.class));
+  }
+
+  public Optional<String> getParentKey() {
+    return ofNullable(claims.get(PARENT_TOKEN_ID_CLAIM_KEY).toString());
+  }
+
  @Override
  public Scope getScope() {
    return Scopes.fromClaims(claims);
@@ -90,5 +106,9 @@ public final class JwtAccessToken implements AccessToken {
  public String compact() {
    return compact;
  }
-  
+
+  @Override
+  public Map<String, Object> getClaims() {
+    return Collections.unmodifiableMap(claims);
+  }
 }
--- a/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenBuilder.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenBuilder.java
@@ -36,10 +36,12 @@ import com.google.common.collect.Maps;
 import io.jsonwebtoken.Claims;
 import io.jsonwebtoken.Jwts;
 import io.jsonwebtoken.SignatureAlgorithm;
+
+import java.time.Clock;
+import java.time.Instant;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import org.apache.shiro.SecurityUtils;
 import org.apache.shiro.subject.Subject;
@@ -48,7 +50,7 @@ import org.slf4j.LoggerFactory;

 /**
 * Jwt implementation of {@link AccessTokenBuilder}.
- * 
+ *
 * @author Sebastian Sdorra
 * @since 2.0.0
 */
@@ -58,21 +60,27 @@ public final class JwtAccessTokenBuilder implements AccessTokenBuilder {
   * the logger for JwtAccessTokenBuilder
   */
  private static final Logger LOG = LoggerFactory.getLogger(JwtAccessTokenBuilder.class);
-  
-  private final KeyGenerator keyGenerator; 
-  private final SecureKeyResolver keyResolver; 
-  
+
+  private final KeyGenerator keyGenerator;
+  private final SecureKeyResolver keyResolver;
+  private final Clock clock;
+
  private String subject;
  private String issuer;
-  private long expiresIn = 60l;
-  private TimeUnit expiresInUnit = TimeUnit.MINUTES;
+  private long expiresIn = 1;
+  private TimeUnit expiresInUnit = TimeUnit.HOURS;
+  private long refreshableFor = 12;
+  private TimeUnit refreshableForUnit = TimeUnit.HOURS;
+  private Instant refreshExpiration;
+  private String parentKeyId;
  private Scope scope = Scope.empty();
-  
+
  private final Map<String,Object> custom = Maps.newHashMap();
-  
-  JwtAccessTokenBuilder(KeyGenerator keyGenerator, SecureKeyResolver keyResolver)  {
+
+  JwtAccessTokenBuilder(KeyGenerator keyGenerator, SecureKeyResolver keyResolver, Clock clock)  {
    this.keyGenerator = keyGenerator;
    this.keyResolver = keyResolver;
+    this.clock = clock;
  }

  @Override
@@ -81,7 +89,7 @@ public final class JwtAccessTokenBuilder implements AccessTokenBuilder {
    this.subject = subject;
    return this;
  }
-  
+
  @Override
  public JwtAccessTokenBuilder custom(String key, Object value) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(key), "null or empty value not allowed");
@@ -92,11 +100,11 @@ public final class JwtAccessTokenBuilder implements AccessTokenBuilder {

  @Override
  public JwtAccessTokenBuilder scope(Scope scope) {
-    Preconditions.checkArgument(scope != null, "scope can not be null");
+    Preconditions.checkArgument(scope != null, "scope cannot be null");
    this.scope = scope;
    return this;
  }
-  
+
  @Override
  public JwtAccessTokenBuilder issuer(String issuer) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(issuer), "null or empty value not allowed");
@@ -106,15 +114,37 @@ public final class JwtAccessTokenBuilder implements AccessTokenBuilder {

  @Override
  public JwtAccessTokenBuilder expiresIn(long count, TimeUnit unit) {
-    Preconditions.checkArgument(count > 0, "expires in must be greater than 0");
-    Preconditions.checkArgument(unit != null, "unit can not be null");
-    
+    Preconditions.checkArgument(count > 0, "count must be greater than 0");
+    Preconditions.checkArgument(unit != null, "unit cannot be null");
+
    this.expiresIn = count;
    this.expiresInUnit = unit;
-    
+
    return this;
  }
-  
+
+  @Override
+  public JwtAccessTokenBuilder refreshableFor(long count, TimeUnit unit) {
+    Preconditions.checkArgument(count >= 0, "count must be greater or equal to 0");
+    Preconditions.checkArgument(unit != null, "unit cannot be null");
+
+    this.refreshableFor = count;
+    this.refreshableForUnit = unit;
+
+    return this;
+  }
+
+  JwtAccessTokenBuilder refreshExpiration(Instant refreshExpiration) {
+    this.refreshExpiration = refreshExpiration;
+    this.refreshableFor = 0;
+    return this;
+  }
+
+  public JwtAccessTokenBuilder parentKey(String parentKeyId) {
+    this.parentKeyId = parentKeyId;
+    return this;
+  }
+
  private String getSubject(){
    if (subject == null) {
      Subject currentSubject = SecurityUtils.getSubject();
@@ -130,35 +160,48 @@ public final class JwtAccessTokenBuilder implements AccessTokenBuilder {
    String id = keyGenerator.createKey();

    String sub = getSubject();
-    
+
    LOG.trace("create new token {} for user {}", id, subject);
    SecureKey key = keyResolver.getSecureKey(sub);
-    
+
    Map<String,Object> customClaims = new HashMap<>(custom);
-    
+
    // add scope to custom claims
    Scopes.toClaims(customClaims, scope);
-    
-    Date now = new Date();
+
+    Instant now = clock.instant();
    long expiration = expiresInUnit.toMillis(expiresIn);
-    
+
    Claims claims = Jwts.claims(customClaims)
      .setSubject(sub)
      .setId(id)
-      .setIssuedAt(now)
-      .setExpiration(new Date(now.getTime() + expiration));
-    
+      .setIssuedAt(Date.from(now))
+      .setExpiration(new Date(now.toEpochMilli() + expiration));
+
+
+    if (refreshableFor > 0) {
+      long refreshExpiration = refreshableForUnit.toMillis(refreshableFor);
+      claims.put(JwtAccessToken.REFRESHABLE_UNTIL_CLAIM_KEY, new Date(now.toEpochMilli() + refreshExpiration).getTime());
+    } else if (refreshExpiration != null) {
+      claims.put(JwtAccessToken.REFRESHABLE_UNTIL_CLAIM_KEY, Date.from(refreshExpiration));
+    }
+    if (parentKeyId == null) {
+      claims.put(JwtAccessToken.PARENT_TOKEN_ID_CLAIM_KEY, id);
+    } else {
+      claims.put(JwtAccessToken.PARENT_TOKEN_ID_CLAIM_KEY, parentKeyId);
+    }
+
    if ( issuer != null ) {
      claims.setIssuer(issuer);
    }
-    
+
    // sign token and create compact version
    String compact = Jwts.builder()
        .setClaims(claims)
        .signWith(SignatureAlgorithm.HS256, key.getBytes())
        .compact();
-    
+
    return new JwtAccessToken(claims, compact);
  }
-  
+
 }
--- a/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenBuilderFactory.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenBuilderFactory.java
@@ -30,6 +30,7 @@
 */
 package sonia.scm.security;

+import java.time.Clock;
 import java.util.Set;
 import javax.inject.Inject;
 import sonia.scm.plugin.Extension;
@@ -46,19 +47,25 @@ public final class JwtAccessTokenBuilderFactory implements AccessTokenBuilderFac
  private final KeyGenerator keyGenerator;
  private final SecureKeyResolver keyResolver;
  private final Set<AccessTokenEnricher> enrichers;
+  private final Clock clock;

  @Inject
  public JwtAccessTokenBuilderFactory(
-    KeyGenerator keyGenerator, SecureKeyResolver keyResolver, Set<AccessTokenEnricher> enrichers
-  ) {
+    KeyGenerator keyGenerator, SecureKeyResolver keyResolver, Set<AccessTokenEnricher> enrichers) {
+    this(keyGenerator, keyResolver, enrichers, Clock.systemDefaultZone());
+  }
+
+  JwtAccessTokenBuilderFactory(
+    KeyGenerator keyGenerator, SecureKeyResolver keyResolver, Set<AccessTokenEnricher> enrichers, Clock clock) {
    this.keyGenerator = keyGenerator;
    this.keyResolver = keyResolver;
    this.enrichers = enrichers;
+    this.clock = clock;
  }

  @Override
  public JwtAccessTokenBuilder create() {
-    JwtAccessTokenBuilder builder = new JwtAccessTokenBuilder(keyGenerator, keyResolver);
+    JwtAccessTokenBuilder builder = new JwtAccessTokenBuilder(keyGenerator, keyResolver, clock);
    
    // enrich access token builder
    enrichers.forEach((enricher) -> {
--- a/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenRefreshStrategy.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenRefreshStrategy.java
@@ -0,0 +1,8 @@
+package sonia.scm.security;
+
+import sonia.scm.plugin.ExtensionPoint;
+
+@ExtensionPoint(multi = false)
+public interface JwtAccessTokenRefreshStrategy {
+  boolean shouldBeRefreshed(JwtAccessToken oldToken);
+}
--- a/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenRefresher.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/JwtAccessTokenRefresher.java
@@ -0,0 +1,77 @@
+package sonia.scm.security;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.inject.Inject;
+import java.time.Clock;
+import java.util.Date;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+public class JwtAccessTokenRefresher {
+
+  private static final Logger log = LoggerFactory.getLogger(JwtAccessTokenRefresher.class);
+
+  private final JwtAccessTokenBuilderFactory builderFactory;
+  private final JwtAccessTokenRefreshStrategy refreshStrategy;
+  private final Clock clock;
+
+  @Inject
+  public JwtAccessTokenRefresher(JwtAccessTokenBuilderFactory builderFactory, JwtAccessTokenRefreshStrategy refreshStrategy) {
+    this(builderFactory, refreshStrategy, Clock.systemDefaultZone());
+  }
+
+  JwtAccessTokenRefresher(JwtAccessTokenBuilderFactory builderFactory, JwtAccessTokenRefreshStrategy refreshStrategy, Clock clock) {
+    this.builderFactory = builderFactory;
+    this.refreshStrategy = refreshStrategy;
+    this.clock = clock;
+  }
+
+  @SuppressWarnings("squid:S3655") // the refresh expiration cannot be null at the time building the new token, because
+                                   // we checked this before in tokenCanBeRefreshed
+  public Optional<JwtAccessToken> refresh(JwtAccessToken oldToken) {
+    JwtAccessTokenBuilder builder = builderFactory.create();
+    Map<String, Object> claims = oldToken.getClaims();
+    claims.forEach(builder::custom);
+
+    if (canBeRefreshed(oldToken) && shouldBeRefreshed(oldToken)) {
+      Optional<Object> parentTokenId = oldToken.getCustom("scm-manager.parentTokenId");
+      if (!parentTokenId.isPresent()) {
+        log.warn("no parent token id found in token; could not refresh");
+        return Optional.empty();
+      }
+      builder.expiresIn(computeOldExpirationInMillis(oldToken), TimeUnit.MILLISECONDS);
+      builder.parentKey(parentTokenId.get().toString());
+      builder.refreshExpiration(oldToken.getRefreshExpiration().get().toInstant());
+      return Optional.of(builder.build());
+    } else {
+      return Optional.empty();
+    }
+  }
+
+  private long computeOldExpirationInMillis(JwtAccessToken oldToken) {
+    return oldToken.getExpiration().getTime() - oldToken.getIssuedAt().getTime();
+  }
+
+  private boolean canBeRefreshed(JwtAccessToken oldToken) {
+    return tokenIsValid(oldToken) && tokenCanBeRefreshed(oldToken);
+  }
+
+  private boolean shouldBeRefreshed(JwtAccessToken oldToken) {
+    return refreshStrategy.shouldBeRefreshed(oldToken);
+  }
+
+  private boolean tokenCanBeRefreshed(JwtAccessToken oldToken) {
+    return oldToken.getRefreshExpiration().map(this::isAfterNow).orElse(false);
+  }
+
+  private boolean tokenIsValid(JwtAccessToken oldToken) {
+    return isAfterNow(oldToken.getExpiration());
+  }
+
+  private boolean isAfterNow(Date expiration) {
+    return expiration.toInstant().isAfter(clock.instant());
+  }
+}
--- a/scm-webapp/src/main/java/sonia/scm/security/PercentageJwtAccessTokenRefreshStrategy.java
+++ b/scm-webapp/src/main/java/sonia/scm/security/PercentageJwtAccessTokenRefreshStrategy.java
@@ -0,0 +1,25 @@
+package sonia.scm.security;
+
+import java.time.Clock;
+
+public class PercentageJwtAccessTokenRefreshStrategy implements JwtAccessTokenRefreshStrategy {
+
+  private final Clock clock;
+  private final float refreshPercentage;
+
+  public PercentageJwtAccessTokenRefreshStrategy(float refreshPercentage) {
+    this(Clock.systemDefaultZone(), refreshPercentage);
+  }
+
+  PercentageJwtAccessTokenRefreshStrategy(Clock clock, float refreshPercentage) {
+    this.clock = clock;
+    this.refreshPercentage = refreshPercentage;
+  }
+
+  @Override
+  public boolean shouldBeRefreshed(JwtAccessToken oldToken) {
+    long liveSpan = oldToken.getExpiration().getTime() - oldToken.getIssuedAt().getTime();
+    long age = clock.instant().toEpochMilli() - oldToken.getIssuedAt().getTime();
+    return (float)age/liveSpan > refreshPercentage;
+  }
+}
--- a/scm-webapp/src/main/java/sonia/scm/web/security/TokenRefreshFilter.java
+++ b/scm-webapp/src/main/java/sonia/scm/web/security/TokenRefreshFilter.java
@@ -0,0 +1,78 @@
+package sonia.scm.web.security;
+
+import org.apache.shiro.authc.AuthenticationToken;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import sonia.scm.Priority;
+import sonia.scm.filter.Filters;
+import sonia.scm.filter.WebElement;
+import sonia.scm.security.AccessToken;
+import sonia.scm.security.AccessTokenCookieIssuer;
+import sonia.scm.security.AccessTokenResolver;
+import sonia.scm.security.BearerToken;
+import sonia.scm.security.JwtAccessToken;
+import sonia.scm.security.JwtAccessTokenRefresher;
+import sonia.scm.web.WebTokenGenerator;
+import sonia.scm.web.filter.HttpFilter;
+
+import javax.inject.Inject;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Optional;
+import java.util.Set;
+
+import static java.util.Optional.empty;
+import static java.util.Optional.of;
+
+@Priority(Filters.PRIORITY_POST_AUTHENTICATION)
+@WebElement(value = Filters.PATTERN_RESTAPI,
+  morePatterns = { Filters.PATTERN_DEBUG })
+public class TokenRefreshFilter extends HttpFilter {
+
+  private static final Logger LOG = LoggerFactory.getLogger(TokenRefreshFilter.class);
+
+  private final Set<WebTokenGenerator> tokenGenerators;
+  private final JwtAccessTokenRefresher refresher;
+  private final AccessTokenResolver resolver;
+  private final AccessTokenCookieIssuer issuer;
+
+  @Inject
+  public TokenRefreshFilter(Set<WebTokenGenerator> tokenGenerators, JwtAccessTokenRefresher refresher, AccessTokenResolver resolver, AccessTokenCookieIssuer issuer) {
+    this.tokenGenerators = tokenGenerators;
+    this.refresher = refresher;
+    this.resolver = resolver;
+    this.issuer = issuer;
+  }
+
+  @Override
+  protected void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
+    extractToken(request).ifPresent(token -> examineToken(request, response, token));
+    chain.doFilter(request, response);
+  }
+
+  private Optional<BearerToken> extractToken(HttpServletRequest request) {
+    for (WebTokenGenerator generator : tokenGenerators) {
+      AuthenticationToken token = generator.createToken(request);
+      if (token instanceof BearerToken) {
+        return of((BearerToken) token);
+      }
+    }
+    return empty();
+  }
+
+  private void examineToken(HttpServletRequest request, HttpServletResponse response, BearerToken token) {
+    AccessToken accessToken = resolver.resolve(token);
+    if (accessToken instanceof JwtAccessToken) {
+      refresher.refresh((JwtAccessToken) accessToken)
+        .ifPresent(jwtAccessToken -> refreshToken(request, response, jwtAccessToken));
+    }
+  }
+
+  private void refreshToken(HttpServletRequest request, HttpServletResponse response, JwtAccessToken jwtAccessToken) {
+    LOG.debug("refreshing authentication token");
+    issuer.authenticate(request, response, jwtAccessToken);
+  }
+}
--- a/scm-webapp/src/test/java/sonia/scm/security/BearerRealmTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/security/BearerRealmTest.java
@@ -61,7 +61,6 @@ import sonia.scm.user.UserDAO;
 import sonia.scm.user.UserTestData;

 import javax.crypto.spec.SecretKeySpec;
-import java.security.SecureRandom;
 import java.util.Date;
 import java.util.Set;

@@ -71,6 +70,7 @@ import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.when;
+import static sonia.scm.security.SecureKeyTestUtil.createSecureKey;

 /**
 * Unit tests for {@link BearerRealm}.
@@ -256,12 +256,6 @@ private String createCompactToken(String subject, SecureKey key) {
      .compact();
  }

-  private SecureKey createSecureKey() {
-    byte[] bytes = new byte[32];
-    random.nextBytes(bytes);
-    return new SecureKey(bytes, System.currentTimeMillis());
-  }
-
  private void resolveKey(SecureKey key) {
    when(
      keyResolver.resolveSigningKey(
@@ -272,16 +266,13 @@ private String createCompactToken(String subject, SecureKey key) {
    .thenReturn(
      new SecretKeySpec(
        key.getBytes(), 
-        SignatureAlgorithm.HS256.getValue()
+        SignatureAlgorithm.HS256.getJcaName()
      )
    );
  }

  //~--- fields ---------------------------------------------------------------
  
-  /** Field description */
-  private final SecureRandom random = new SecureRandom();
-
  @InjectMocks
  private DAORealmHelperFactory helperFactory;
  
--- a/scm-webapp/src/test/java/sonia/scm/security/JwtAccessTokenBuilderTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/security/JwtAccessTokenBuilderTest.java
@@ -44,7 +44,6 @@ import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;

-import java.util.Random;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;

@@ -56,6 +55,7 @@ import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.anyString;
 import static org.mockito.Mockito.when;
+import static sonia.scm.security.SecureKeyTestUtil.createSecureKey;

 /**
 * Unit test for {@link JwtAccessTokenBuilder}.
@@ -162,11 +162,4 @@ public class JwtAccessTokenBuilderTest {
    assertEquals("b", token.getCustom("a").get());
    assertEquals("[\"repo:*\"]", token.getScope().toString());
  }
-  
-  private SecureKey createSecureKey() {
-    byte[] bytes = new byte[32];
-    new Random().nextBytes(bytes);
-    return new SecureKey(bytes, System.currentTimeMillis());
-  }
-
 }
--- a/scm-webapp/src/test/java/sonia/scm/security/JwtAccessTokenRefresherTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/security/JwtAccessTokenRefresherTest.java
@@ -0,0 +1,152 @@
+package sonia.scm.security;
+
+import com.github.sdorra.shiro.ShiroRule;
+import com.github.sdorra.shiro.SubjectAware;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import java.sql.Date;
+import java.time.Clock;
+import java.time.Instant;
+import java.util.Collections;
+import java.util.Optional;
+
+import static java.time.Duration.ofMinutes;
+import static java.time.temporal.ChronoUnit.SECONDS;
+import static java.util.concurrent.TimeUnit.MINUTES;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+import static sonia.scm.security.SecureKeyTestUtil.createSecureKey;
+
+@SubjectAware(
+  username = "user",
+  password = "secret",
+  configuration = "classpath:sonia/scm/repository/shiro.ini"
+)
+@RunWith(MockitoJUnitRunner.class)
+public class JwtAccessTokenRefresherTest {
+
+  private static final Instant NOW = Instant.now().truncatedTo(SECONDS);
+  private static final Instant TOKEN_CREATION = NOW.minus(ofMinutes(1));
+
+  @Rule
+  public ShiroRule shiro = new ShiroRule();
+
+  @Mock
+  private SecureKeyResolver keyResolver;
+  @Mock
+  private JwtAccessTokenRefreshStrategy refreshStrategy;
+  @Mock
+  private Clock refreshClock;
+
+  private KeyGenerator keyGenerator = () -> "key";
+
+  private JwtAccessTokenRefresher refresher;
+  private JwtAccessTokenBuilder tokenBuilder;
+
+  @Before
+  public void initKeyResolver() {
+    when(keyResolver.getSecureKey(any())).thenReturn(createSecureKey());
+
+    Clock creationClock = mock(Clock.class);
+    when(creationClock.instant()).thenReturn(TOKEN_CREATION);
+    tokenBuilder = new JwtAccessTokenBuilderFactory(keyGenerator, keyResolver, Collections.emptySet(), creationClock).create();
+
+    JwtAccessTokenBuilderFactory refreshBuilderFactory = new JwtAccessTokenBuilderFactory(keyGenerator, keyResolver, Collections.emptySet(), refreshClock);
+    refresher = new JwtAccessTokenRefresher(refreshBuilderFactory, refreshStrategy, refreshClock);
+    when(refreshClock.instant()).thenReturn(NOW);
+    when(refreshStrategy.shouldBeRefreshed(any())).thenReturn(true);
+
+    // set default expiration values
+    tokenBuilder
+      .expiresIn(5, MINUTES)
+      .refreshableFor(10, MINUTES);
+  }
+
+  @Test
+  public void shouldNotRefreshTokenWithDisabledRefresh() {
+    JwtAccessToken oldToken = tokenBuilder
+      .refreshableFor(0, MINUTES)
+      .build();
+
+    Optional<JwtAccessToken> refreshedToken = refresher.refresh(oldToken);
+
+    assertThat(refreshedToken).isEmpty();
+  }
+
+  @Test
+  public void shouldNotRefreshTokenWhenTokenExpired() {
+    Instant afterNormalExpiration = NOW.plus(ofMinutes(6));
+    when(refreshClock.instant()).thenReturn(afterNormalExpiration);
+    JwtAccessToken oldToken = tokenBuilder.build();
+
+    Optional<JwtAccessToken> refreshedToken = refresher.refresh(oldToken);
+
+    assertThat(refreshedToken).isEmpty();
+  }
+
+  @Test
+  public void shouldNotRefreshTokenWhenRefreshExpired() {
+    Instant afterRefreshExpiration = Instant.now().plus(ofMinutes(2));
+    when(refreshClock.instant()).thenReturn(afterRefreshExpiration);
+    JwtAccessToken oldToken = tokenBuilder
+      .refreshableFor(1, MINUTES)
+      .build();
+
+    Optional<JwtAccessToken> refreshedToken = refresher.refresh(oldToken);
+
+    assertThat(refreshedToken).isEmpty();
+  }
+
+  @Test
+  public void shouldNotRefreshTokenWhenStrategyDoesNotSaySo() {
+    JwtAccessToken oldToken = tokenBuilder.build();
+    when(refreshStrategy.shouldBeRefreshed(oldToken)).thenReturn(false);
+
+    Optional<JwtAccessToken> refreshedToken = refresher.refresh(oldToken);
+
+    assertThat(refreshedToken).isEmpty();
+  }
+
+  @Test
+  public void shouldRefreshTokenWithParentId() {
+    JwtAccessToken oldToken = tokenBuilder.build();
+    when(refreshStrategy.shouldBeRefreshed(oldToken)).thenReturn(true);
+
+    Optional<JwtAccessToken> refreshedTokenResult = refresher.refresh(oldToken);
+
+    assertThat(refreshedTokenResult).isNotEmpty();
+    JwtAccessToken refreshedToken = refreshedTokenResult.get();
+    assertThat(refreshedToken.getParentKey()).get().isEqualTo("key");
+  }
+
+  @Test
+  public void shouldRefreshTokenWithSameExpiration() {
+    JwtAccessToken oldToken = tokenBuilder.build();
+    when(refreshStrategy.shouldBeRefreshed(oldToken)).thenReturn(true);
+
+    Optional<JwtAccessToken> refreshedTokenResult = refresher.refresh(oldToken);
+
+    assertThat(refreshedTokenResult).isNotEmpty();
+    JwtAccessToken refreshedToken = refreshedTokenResult.get();
+    assertThat(refreshedToken.getExpiration()).isEqualTo(Date.from(NOW.plus(ofMinutes(5))));
+  }
+
+  @Test
+  public void shouldRefreshTokenWithSameRefreshExpiration() {
+    JwtAccessToken oldToken = tokenBuilder.build();
+    when(refreshStrategy.shouldBeRefreshed(oldToken)).thenReturn(true);
+
+    Optional<JwtAccessToken> refreshedTokenResult = refresher.refresh(oldToken);
+
+    assertThat(refreshedTokenResult).isNotEmpty();
+    JwtAccessToken refreshedToken = refreshedTokenResult.get();
+    assertThat(refreshedToken.getRefreshExpiration()).get().isEqualTo(Date.from(TOKEN_CREATION.plus(ofMinutes(10))));
+  }
+}
--- a/scm-webapp/src/test/java/sonia/scm/security/JwtAccessTokenResolverTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/security/JwtAccessTokenResolverTest.java
@@ -56,6 +56,8 @@ import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.Mockito;
 import static org.mockito.Mockito.*;
+import static sonia.scm.security.SecureKeyTestUtil.createSecureKey;
+
 import org.mockito.junit.MockitoJUnitRunner;

 /**
@@ -214,12 +216,6 @@ public class JwtAccessTokenResolverTest {
      .compact();
  }
  
-  private SecureKey createSecureKey() {
-    byte[] bytes = new byte[32];
-    random.nextBytes(bytes);
-    return new SecureKey(bytes, System.currentTimeMillis());
-  }
-  
  private void resolveKey(SecureKey key) {
    when(
      keyResolver.resolveSigningKey(
@@ -230,7 +226,7 @@ public class JwtAccessTokenResolverTest {
    .thenReturn(
      new SecretKeySpec(
        key.getBytes(), 
-        SignatureAlgorithm.HS256.getValue()
+        SignatureAlgorithm.HS256.getJcaName()
      )
    );
  }
--- a/scm-webapp/src/test/java/sonia/scm/security/PercentageJwtAccessTokenRefreshStrategyTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/security/PercentageJwtAccessTokenRefreshStrategyTest.java
@@ -0,0 +1,67 @@
+package sonia.scm.security;
+
+import com.github.sdorra.shiro.ShiroRule;
+import com.github.sdorra.shiro.SubjectAware;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.time.Clock;
+import java.time.Instant;
+import java.util.Collections;
+
+import static java.time.temporal.ChronoUnit.MINUTES;
+import static java.time.temporal.ChronoUnit.SECONDS;
+import static java.util.concurrent.TimeUnit.HOURS;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+import static sonia.scm.security.SecureKeyTestUtil.createSecureKey;
+
+@SubjectAware(
+  username = "user",
+  password = "secret",
+  configuration = "classpath:sonia/scm/repository/shiro.ini"
+)
+public class PercentageJwtAccessTokenRefreshStrategyTest {
+
+  private static final Instant TOKEN_CREATION = Instant.now().truncatedTo(SECONDS);
+
+  @Rule
+  public ShiroRule shiro = new ShiroRule();
+
+  private KeyGenerator keyGenerator = () -> "key";
+
+  private Clock refreshClock = mock(Clock.class);
+
+  private JwtAccessTokenBuilder tokenBuilder;
+  private PercentageJwtAccessTokenRefreshStrategy refreshStrategy;
+
+  @Before
+  public void initToken() {
+    SecureKeyResolver keyResolver = mock(SecureKeyResolver.class);
+    when(keyResolver.getSecureKey(any())).thenReturn(createSecureKey());
+
+    Clock creationClock = mock(Clock.class);
+    when(creationClock.instant()).thenReturn(TOKEN_CREATION);
+
+    tokenBuilder = new JwtAccessTokenBuilderFactory(keyGenerator, keyResolver, Collections.emptySet(), creationClock).create();
+    tokenBuilder.expiresIn(1, HOURS);
+    tokenBuilder.refreshableFor(1, HOURS);
+
+    refreshStrategy = new PercentageJwtAccessTokenRefreshStrategy(refreshClock, 0.5F);
+  }
+
+  @Test
+  public void shouldNotRefreshWhenTokenIsYoung() {
+    when(refreshClock.instant()).thenReturn(TOKEN_CREATION.plus(29, MINUTES));
+    assertThat(refreshStrategy.shouldBeRefreshed(tokenBuilder.build())).isFalse();
+  }
+
+  @Test
+  public void shouldRefreshWhenTokenIsOld() {
+    when(refreshClock.instant()).thenReturn(TOKEN_CREATION.plus(31, MINUTES));
+    assertThat(refreshStrategy.shouldBeRefreshed(tokenBuilder.build())).isTrue();
+  }
+}
--- a/scm-webapp/src/test/java/sonia/scm/security/SecureKeyTestUtil.java
+++ b/scm-webapp/src/test/java/sonia/scm/security/SecureKeyTestUtil.java
@@ -0,0 +1,11 @@
+package sonia.scm.security;
+
+import java.security.SecureRandom;
+
+public class SecureKeyTestUtil {
+  public static SecureKey createSecureKey() {
+    byte[] bytes = new byte[32];
+    new SecureRandom().nextBytes(bytes);
+    return new SecureKey(bytes, System.currentTimeMillis());
+  }
+}
--- a/scm-webapp/src/test/java/sonia/scm/web/security/TokenRefreshFilterTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/web/security/TokenRefreshFilterTest.java
@@ -0,0 +1,107 @@
+package sonia.scm.web.security;
+
+import org.apache.shiro.authc.AuthenticationToken;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import sonia.scm.security.AccessTokenCookieIssuer;
+import sonia.scm.security.AccessTokenResolver;
+import sonia.scm.security.BearerToken;
+import sonia.scm.security.JwtAccessToken;
+import sonia.scm.security.JwtAccessTokenRefresher;
+import sonia.scm.web.WebTokenGenerator;
+
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Set;
+
+import static java.util.Collections.singleton;
+import static java.util.Optional.of;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith({MockitoExtension.class})
+class TokenRefreshFilterTest {
+
+  @Mock
+  private Set<WebTokenGenerator> tokenGenerators;
+  @Mock
+  private WebTokenGenerator tokenGenerator;
+  @Mock
+  private JwtAccessTokenRefresher refresher;
+  @Mock
+  private AccessTokenResolver resolver;
+  @Mock
+  private AccessTokenCookieIssuer issuer;
+
+  @InjectMocks
+  private TokenRefreshFilter filter;
+
+  @Mock
+  private HttpServletRequest request;
+  @Mock
+  private HttpServletResponse response;
+  @Mock
+  private FilterChain filterChain;
+
+  @BeforeEach
+  void initGenerators() {
+    when(tokenGenerators.iterator()).thenReturn(singleton(tokenGenerator).iterator());
+  }
+
+  @Test
+  void shouldContinueChain() throws IOException, ServletException {
+    filter.doFilter(request, response, filterChain);
+
+    verify(filterChain).doFilter(request, response);
+    verify(issuer, never()).authenticate(any(), any(), any());
+  }
+
+  @Test
+  void shouldNotRefreshNonBearerToken() throws IOException, ServletException {
+    AuthenticationToken token = mock(AuthenticationToken.class);
+    when(tokenGenerator.createToken(request)).thenReturn(token);
+
+    filter.doFilter(request, response, filterChain);
+
+    verify(issuer, never()).authenticate(any(), any(), any());
+    verify(filterChain).doFilter(request, response);
+  }
+
+  @Test
+  void shouldNotRefreshNonJwtToken() throws IOException, ServletException {
+    BearerToken token = mock(BearerToken.class);
+    JwtAccessToken jwtToken = mock(JwtAccessToken.class);
+    when(tokenGenerator.createToken(request)).thenReturn(token);
+    when(resolver.resolve(token)).thenReturn(jwtToken);
+
+    filter.doFilter(request, response, filterChain);
+
+    verify(issuer, never()).authenticate(any(), any(), any());
+    verify(filterChain).doFilter(request, response);
+  }
+
+  @Test
+  void shouldRefreshIfRefreshable() throws IOException, ServletException {
+    BearerToken token = mock(BearerToken.class);
+    JwtAccessToken jwtToken = mock(JwtAccessToken.class);
+    JwtAccessToken newJwtToken = mock(JwtAccessToken.class);
+    when(tokenGenerator.createToken(request)).thenReturn(token);
+    when(resolver.resolve(token)).thenReturn(jwtToken);
+    when(refresher.refresh(jwtToken)).thenReturn(of(newJwtToken));
+
+    filter.doFilter(request, response, filterChain);
+
+    verify(issuer).authenticate(request, response, newJwtToken);
+    verify(filterChain).doFilter(request, response);
+  }
+}
--- a/scm-webapp/src/test/resources/sonia/scm/repository/shiro.ini
+++ b/scm-webapp/src/test/resources/sonia/scm/repository/shiro.ini
@@ -4,6 +4,7 @@ dent = secret, creator, heartOfGold, puzzle42
 unpriv = secret
 crato = secret, creator
 community = secret, oss
+user = secret, user

 [roles]
 admin = *
@@ -11,3 +12,4 @@ creator = repository:create
 heartOfGold = "repository:read,modify,delete:hof"
 puzzle42 = "repository:read,write:p42"
 oss = "repository:pull"
+user = *