Make auth expiration for LFS configurable (#1697)

When SCM-Manager is used behind a reverse proxy like
Nginx it may be the case, that lfs PUT requests are
buffered by the reverse proxy and will be sent to the
SCM-Manager after the whole file has been received. Due
to the expiration time of 5 minutes for the authentivation
token that had been requested by Git before the upload
has been started, this request from the proxy to
SCM-Manager fails if the upload from the client to the
reverse proxy took longer than these 5 minutes.

To solve this, we make this expiration time configurable,
so that whenever you have very large files or small
bandwidth the expiration timeout can be increased.

docs/de/user/admin/git.md

@@ -20,4 +20,12 @@ Unter dem Eintrag Git können die folgenden Git-spezifischen Einstellungen vorge
     Bitte beachten Sie, dass dieser Name aufgrund von Git-Spezifika nicht bei leeren Repositories genutzt
     werden kann (hier wird immer der Git-interne Default Name genutzt, derzeit also `master`).
 
+- LFS Autorisierungsablaufzeit
+
+    Ablaufzeit für den Autorisierungstoken in Minuten, der für LFS Speicheranfragen ausgestellt wird.
+    Wenn der SCM-Manager hinter einem Reverse-Proxy mit Zwischenspeicherung (z. B. Nginx) betrieben wird,
+    sollte dieser Wert auf die Zeit gesetzt werden, die ein LFS-Upload maximal benötigen kann. Treten
+    während eines länger laufenden LFS "Pushs" Autorisierungsfehler auf, sollte dieser Wert erhöht werden.
+    Der Default-Wert beträgt 5 Minuten.
+
 ![Administration-Plugins-Installed](assets/administration-settings-git.png)

docs/en/user/admin/git.md

@@ -19,4 +19,11 @@ In the git section there are the following git specific settings:
     Please mind, that due to git internals this cannot work for empty repositories (here git
     will always use its internal default branch, so at the time being `master`).
 
+- LFS authorization expiration
+
+    Sets the expiration time of the authorization token generated for LFS put requests in minutes.
+    If SCM-Manager is run behind a reverse proxy that buffers http requests (eg. Nginx), this
+    should set up to the time, an LFS upload may take at maximum. If you experience errors during
+    long-running LFS push requests, this may have to be increased. The default value is 5 minutes.
+
 ![Administration-Plugins-Installed](assets/administration-settings-git.png)

gradle/changelog/lfs_auth_expiration.yaml

@@ -0,0 +1,2 @@
+- type: fixed
+  description: Added option to increase LFS authorization token timeout ([#1697](https://github.com/scm-manager/scm-manager/pull/1697))

scm-it/src/test/java/sonia/scm/it/GitNonFastForwardITCase.java

@@ -185,7 +185,7 @@ public class GitNonFastForwardITCase {
   }
 
   private static void setNonFastForwardDisallowed(boolean nonFastForwardDisallowed) {
-    String config = String.format("{'disabled': false, 'gcExpression': null, 'defaultBranch': 'main', 'nonFastForwardDisallowed': %s}", nonFastForwardDisallowed)
+    String config = String.format("{'disabled': false, 'gcExpression': null, 'defaultBranch': 'main', 'lfsWriteAuthorizationExpirationInMinutes': 5, 'nonFastForwardDisallowed': %s}", nonFastForwardDisallowed)
       .replace('\'', '"');
 
     given(VndMediaType.PREFIX + "gitConfig" + VndMediaType.SUFFIX)

scm-plugins/scm-git-plugin/src/main/java/sonia/scm/api/v2/resources/GitConfigDto.java

@@ -31,6 +31,7 @@ import lombok.NoArgsConstructor;
 import lombok.Setter;
 import org.hibernate.validator.constraints.Length;
 
+import javax.validation.constraints.Min;
 import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.Pattern;
 
@@ -52,6 +53,9 @@ public class GitConfigDto extends HalRepresentation implements UpdateGitConfigDt
   @Pattern(regexp = VALID_BRANCH_NAMES)
   private String defaultBranch;
 
+  @Min(1)
+  private int lfsWriteAuthorizationExpirationInMinutes;
+
   @Override
   @SuppressWarnings("squid:S1185") // We want to have this method available in this package
   protected HalRepresentation add(Links links) {

scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/GitConfig.java

@@ -55,6 +55,9 @@ public class GitConfig extends RepositoryConfig {
   @XmlElement(name = "default-branch")
   private String defaultBranch = FALLBACK_BRANCH;
 
+  @XmlElement(name = "lfs-write-authorization-expiration")
+  private int lfsWriteAuthorizationExpirationInMinutes = 5;
+
   public String getGcExpression() {
     return gcExpression;
   }
@@ -82,6 +85,14 @@ public class GitConfig extends RepositoryConfig {
     this.defaultBranch = defaultBranch;
   }
 
+  public int getLfsWriteAuthorizationExpirationInMinutes() {
+    return lfsWriteAuthorizationExpirationInMinutes;
+  }
+
+  public void setLfsWriteAuthorizationExpirationInMinutes(int lfsWriteAuthorizationExpirationInMinutes) {
+    this.lfsWriteAuthorizationExpirationInMinutes = lfsWriteAuthorizationExpirationInMinutes;
+  }
+
   @Override
   @XmlTransient // Only for permission checks, don't serialize to XML
   public String getId() {

scm-plugins/scm-git-plugin/src/main/java/sonia/scm/web/lfs/LfsAccessTokenFactory.java

@@ -27,6 +27,8 @@ package sonia.scm.web.lfs;
 import com.github.sdorra.ssp.PermissionCheck;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import sonia.scm.repository.GitConfig;
+import sonia.scm.repository.GitRepositoryHandler;
 import sonia.scm.repository.Repository;
 import sonia.scm.repository.RepositoryPermissions;
 import sonia.scm.security.AccessToken;
@@ -43,10 +45,12 @@ public class LfsAccessTokenFactory {
   private static final Logger LOG = LoggerFactory.getLogger(LfsAccessTokenFactory.class);
 
   private final AccessTokenBuilderFactory tokenBuilderFactory;
+  private final GitRepositoryHandler handler;
 
   @Inject
-  LfsAccessTokenFactory(AccessTokenBuilderFactory tokenBuilderFactory) {
+  LfsAccessTokenFactory(AccessTokenBuilderFactory tokenBuilderFactory, GitRepositoryHandler handler) {
     this.tokenBuilderFactory = tokenBuilderFactory;
+    this.handler = handler;
   }
 
   AccessToken createReadAccessToken(Repository repository) {
@@ -67,7 +71,7 @@ public class LfsAccessTokenFactory {
       permissions.add(push.asShiroString());
     }
 
-    return createToken(Scope.valueOf(permissions));
+    return createToken(Scope.valueOf(permissions), 5);
   }
 
   AccessToken createWriteAccessToken(Repository repository) {
@@ -80,15 +84,22 @@ public class LfsAccessTokenFactory {
     PermissionCheck push = RepositoryPermissions.push(repository);
     push.check();
 
-    return createToken(Scope.valueOf(read.asShiroString(), pull.asShiroString(), push.asShiroString()));
+    int lfsAuthorizationTimeoutInMinutes = getConfiguredLfsAuthorizationTimeoutInMinutes();
+
+    return createToken(Scope.valueOf(read.asShiroString(), pull.asShiroString(), push.asShiroString()), lfsAuthorizationTimeoutInMinutes);
   }
 
-  private AccessToken createToken(Scope scope) {
+  private AccessToken createToken(Scope scope, int expiration) {
     LOG.trace("create access token with scope: {}", scope);
     return tokenBuilderFactory
       .create()
-      .expiresIn(5, TimeUnit.MINUTES)
+      .expiresIn(expiration, TimeUnit.MINUTES)
       .scope(scope)
       .build();
   }
+
+  private int getConfiguredLfsAuthorizationTimeoutInMinutes() {
+    GitConfig repositoryConfig = handler.getConfig();
+    return repositoryConfig.getLfsWriteAuthorizationExpirationInMinutes();
+  }
 }

scm-plugins/scm-git-plugin/src/main/js/GitConfigurationForm.tsx

@@ -1,122 +0,0 @@
-/*
- * MIT License
- *
- * Copyright (c) 2020-present Cloudogu GmbH and Contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-import React from "react";
-import { WithTranslation, withTranslation } from "react-i18next";
-import { Links } from "@scm-manager/ui-types";
-import { InputField, Checkbox, validation as validator } from "@scm-manager/ui-components";
-
-type Configuration = {
-  repositoryDirectory?: string;
-  gcExpression?: string;
-  nonFastForwardDisallowed: boolean;
-  defaultBranch: string;
-  _links: Links;
-};
-
-type Props = WithTranslation & {
-  initialConfiguration: Configuration;
-  readOnly: boolean;
-
-  onConfigurationChange: (p1: Configuration, p2: boolean) => void;
-};
-
-type State = Configuration & {};
-
-class GitConfigurationForm extends React.Component<Props, State> {
-  constructor(props: Props) {
-    super(props);
-    this.state = {
-      ...props.initialConfiguration
-    };
-  }
-
-  onGcExpressionChange = (value: string) => {
-    this.setState(
-      {
-        gcExpression: value
-      },
-      () => this.props.onConfigurationChange(this.state, true)
-    );
-  };
-
-  onNonFastForwardDisallowed = (value: boolean) => {
-    this.setState(
-      {
-        nonFastForwardDisallowed: value
-      },
-      () => this.props.onConfigurationChange(this.state, true)
-    );
-  };
-
-  onDefaultBranchChange = (value: string) => {
-    this.setState(
-      {
-        defaultBranch: value
-      },
-      () => this.props.onConfigurationChange(this.state, this.isValidDefaultBranch())
-    );
-  };
-
-  isValidDefaultBranch = () => {
-    return validator.isBranchValid(this.state.defaultBranch);
-  };
-
-  render() {
-    const { gcExpression, nonFastForwardDisallowed, defaultBranch } = this.state;
-    const { readOnly, t } = this.props;
-
-    return (
-      <>
-        <InputField
-          name="gcExpression"
-          label={t("scm-git-plugin.config.gcExpression")}
-          helpText={t("scm-git-plugin.config.gcExpressionHelpText")}
-          value={gcExpression}
-          onChange={this.onGcExpressionChange}
-          disabled={readOnly}
-        />
-        <Checkbox
-          name="nonFastForwardDisallowed"
-          label={t("scm-git-plugin.config.nonFastForwardDisallowed")}
-          helpText={t("scm-git-plugin.config.nonFastForwardDisallowedHelpText")}
-          checked={nonFastForwardDisallowed}
-          onChange={this.onNonFastForwardDisallowed}
-          disabled={readOnly}
-        />
-        <InputField
-          name="defaultBranch"
-          label={t("scm-git-plugin.config.defaultBranch")}
-          helpText={t("scm-git-plugin.config.defaultBranchHelpText")}
-          value={defaultBranch}
-          onChange={this.onDefaultBranchChange}
-          disabled={readOnly}
-          validationError={!this.isValidDefaultBranch()}
-          errorMessage={t("scm-git-plugin.config.defaultBranchValidationError")}
-        />
-      </>
-    );
-  }
-}
-
-export default withTranslation("plugins")(GitConfigurationForm);

scm-plugins/scm-git-plugin/src/main/js/GitGlobalConfiguration.tsx

@@ -21,26 +21,80 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-import React from "react";
-import { WithTranslation, withTranslation } from "react-i18next";
-import { Title, Configuration } from "@scm-manager/ui-components";
-import GitConfigurationForm from "./GitConfigurationForm";
+import React, { FC, useEffect } from "react";
+import { useTranslation } from "react-i18next";
+import { Title, ConfigurationForm, InputField, Checkbox, validation } from "@scm-manager/ui-components";
+import { useConfigLink } from "@scm-manager/ui-api";
+import { HalRepresentation } from "@scm-manager/ui-types";
+import { useForm } from "react-hook-form";
 
-type Props = WithTranslation & {
+type Props = {
   link: string;
 };
 
-class GitGlobalConfiguration extends React.Component<Props> {
-  render() {
-    const { link, t } = this.props;
+type Configuration = HalRepresentation & {
+  repositoryDirectory?: string;
+  gcExpression?: string;
+  nonFastForwardDisallowed: boolean;
+  defaultBranch: string;
+  lfsWriteAuthorizationExpirationInMinutes: number;
+};
 
-    return (
-      <div>
-        <Title title={t("scm-git-plugin.config.title")} />
-        <Configuration link={link} render={(props: any) => <GitConfigurationForm {...props} />} />
-      </div>
-    );
-  }
-}
+const GitGlobalConfiguration: FC<Props> = ({ link }) => {
+  const [t] = useTranslation("plugins");
 
-export default withTranslation("plugins")(GitGlobalConfiguration);
+  const { initialConfiguration, isReadOnly, update, ...formProps } = useConfigLink(link);
+  const { formState, handleSubmit, register, reset } = useForm<Configuration>({ mode: "onChange" });
+
+  useEffect(() => {
+    if (initialConfiguration) {
+      reset(initialConfiguration);
+    }
+  }, [initialConfiguration]);
+
+  const isValidDefaultBranch = (value: string) => {
+    return validation.isBranchValid(value);
+  };
+
+  return (
+    <ConfigurationForm
+      isValid={formState.isValid}
+      isReadOnly={isReadOnly}
+      onSubmit={handleSubmit(update)}
+      {...formProps}
+    >
+      <Title title={t("scm-git-plugin.config.title")} />
+      <InputField
+        label={t("scm-git-plugin.config.gcExpression")}
+        helpText={t("scm-git-plugin.config.gcExpressionHelpText")}
+        disabled={isReadOnly}
+        {...register("gcExpression")}
+      />
+      <Checkbox
+        label={t("scm-git-plugin.config.nonFastForwardDisallowed")}
+        helpText={t("scm-git-plugin.config.nonFastForwardDisallowedHelpText")}
+        disabled={isReadOnly}
+        {...register("nonFastForwardDisallowed")}
+      />
+      <InputField
+        label={t("scm-git-plugin.config.defaultBranch")}
+        helpText={t("scm-git-plugin.config.defaultBranchHelpText")}
+        disabled={isReadOnly}
+        validationError={!!formState.errors.defaultBranch}
+        errorMessage={t("scm-git-plugin.config.defaultBranchValidationError")}
+        {...register("defaultBranch", { validate: isValidDefaultBranch })}
+      />
+      <InputField
+        type="number"
+        label={t("scm-git-plugin.config.lfsWriteAuthorizationExpirationInMinutes")}
+        helpText={t("scm-git-plugin.config.lfsWriteAuthorizationExpirationInMinutesHelpText")}
+        disabled={isReadOnly}
+        validationError={!!formState.errors.lfsWriteAuthorizationExpirationInMinutes}
+        errorMessage={t("scm-git-plugin.config.lfsWriteAuthorizationExpirationInMinutesValidationError")}
+        {...register("lfsWriteAuthorizationExpirationInMinutes", { min: 1, required: true })}
+      />
+    </ConfigurationForm>
+  );
+};
+
+export default GitGlobalConfiguration;

scm-plugins/scm-git-plugin/src/main/resources/locales/de/plugins.json

@@ -27,6 +27,9 @@
       "defaultBranch": "Default Branch",
       "defaultBranchHelpText": "Dieser Name wird bei der Initialisierung neuer Git Repositories genutzt. Er hat keine weiteren Auswirkungen (insbesondere hat er keinen Einfluss auf den Branchnamen bei leeren Repositories).",
       "defaultBranchValidationError": "Dies ist kein valider Branchname",
+      "lfsWriteAuthorizationExpirationInMinutes": "Ablaufzeit für LFS Autorisierung",
+      "lfsWriteAuthorizationExpirationInMinutesHelpText": "Ablaufzeit für den Autorisierungstoken in Minuten, der für LFS Speicheranfragen ausgestellt wird. Wenn der SCM-Manager hinter einem Reverse-Proxy mit Zwischenspeicherung (z. B. Nginx) betrieben wird, sollte dieser Wert auf die Zeit gesetzt werden, die ein LFS-Upload maximal benötigen kann.",
+      "lfsWriteAuthorizationExpirationInMinutesValidationError": "Has to be at least 1 minute",
       "disabled": "Deaktiviert",
       "disabledHelpText": "Aktiviere oder deaktiviere das Git Plugin",
       "submit": "Speichern"

scm-plugins/scm-git-plugin/src/main/resources/locales/en/plugins.json

@@ -27,6 +27,9 @@
       "defaultBranch": "Default Branch",
       "defaultBranchHelpText": "This name will be used for the initialization of new git repositories. It has no effect otherwise (especially this cannot change the initial branch name for empty repositories).",
       "defaultBranchValidationError": "This is not a valid branch name",
+      "lfsWriteAuthorizationExpirationInMinutes": "LFS authorization expiration",
+      "lfsWriteAuthorizationExpirationInMinutesHelpText": "Expiration time of the authorization token generated for LFS put requests in minutes. If SCM-Manager is run behind a reverse proxy that buffers http requests (eg. Nginx), this should set up to the time, an LFS upload may take at maximum.",
+      "lfsWriteAuthorizationExpirationInMinutesValidationError": "Has to be at least 1 minute",
       "disabled": "Disabled",
       "disabledHelpText": "Enable or disable the Git plugin",
       "submit": "Submit"

scm-plugins/scm-git-plugin/src/test/java/sonia/scm/api/v2/resources/GitConfigResourceTest.java

@@ -48,6 +48,7 @@ import sonia.scm.repository.RepositoryManager;
 import sonia.scm.store.ConfigurationStore;
 import sonia.scm.store.ConfigurationStoreFactory;
 import sonia.scm.web.GitVndMediaType;
+import sonia.scm.web.JsonMockHttpRequest;
 import sonia.scm.web.RestDispatcher;
 
 import javax.servlet.http.HttpServletResponse;
@@ -127,10 +128,12 @@ public class GitConfigResourceTest {
 
     String responseString = response.getContentAsString();
 
-    assertTrue(responseString.contains("\"disabled\":false"));
-    assertTrue(responseString.contains("\"gcExpression\":\"valid Git GC Cron Expression\""));
-    assertTrue(responseString.contains("\"self\":{\"href\":\"/v2/config/git"));
-    assertTrue(responseString.contains("\"update\":{\"href\":\"/v2/config/git"));
+    assertThat(responseString)
+      .contains("\"disabled\":false")
+      .contains("\"gcExpression\":\"valid Git GC Cron Expression\"")
+      .contains("\"self\":{\"href\":\"/v2/config/git")
+      .contains("\"update\":{\"href\":\"/v2/config/git")
+      .contains("\"lfsWriteAuthorizationExpirationInMinutes\":5");
   }
 
   @Test
@@ -324,9 +327,9 @@ public class GitConfigResourceTest {
   }
 
   private MockHttpResponse put() throws URISyntaxException {
-    MockHttpRequest request = MockHttpRequest.put("/" + GitConfigResource.GIT_CONFIG_PATH_V2)
+    JsonMockHttpRequest request = JsonMockHttpRequest.put("/" + GitConfigResource.GIT_CONFIG_PATH_V2)
                                              .contentType(GitVndMediaType.GIT_CONFIG)
-                                             .content("{\"disabled\":true, \"defaultBranch\":\"main\"}".getBytes());
+                                             .json("{'disabled':true, 'defaultBranch':'main', 'lfsWriteAuthorizationExpirationInMinutes':5}");
 
     MockHttpResponse response = new MockHttpResponse();
     dispatcher.invoke(request, response);
@@ -337,6 +340,7 @@ public class GitConfigResourceTest {
     GitConfig config = new GitConfig();
     config.setGcExpression("valid Git GC Cron Expression");
     config.setDisabled(false);
+    config.setLfsWriteAuthorizationExpirationInMinutes(5);
     return config;
   }
 }

scm-plugins/scm-git-plugin/src/test/java/sonia/scm/web/lfs/LfsAccessTokenFactoryTest.java

@@ -0,0 +1,188 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020-present Cloudogu GmbH and Contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package sonia.scm.web.lfs;
+
+import org.apache.shiro.authz.UnauthorizedException;
+import org.github.sdorra.jse.ShiroExtension;
+import org.github.sdorra.jse.SubjectAware;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Answers;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import sonia.scm.repository.GitConfig;
+import sonia.scm.repository.GitRepositoryHandler;
+import sonia.scm.repository.Repository;
+import sonia.scm.repository.RepositoryTestData;
+import sonia.scm.security.AccessToken;
+import sonia.scm.security.AccessTokenBuilder;
+import sonia.scm.security.AccessTokenBuilderFactory;
+
+import java.util.concurrent.TimeUnit;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+@ExtendWith(ShiroExtension.class)
+class LfsAccessTokenFactoryTest {
+
+  @Mock
+  private AccessTokenBuilderFactory tokenBuilderFactory;
+  @Mock(answer = Answers.RETURNS_SELF)
+  private AccessTokenBuilder tokenBuilder;
+  @Mock
+  private GitRepositoryHandler handler;
+  @InjectMocks
+  private LfsAccessTokenFactory factory;
+
+  @Mock
+  private AccessToken createdTokenFromMock;
+
+  private Repository repository = RepositoryTestData.createHeartOfGold();
+
+  @BeforeEach
+  void initRepository() {
+    repository.setId("42");
+  }
+
+  @Nested
+  class WithPermissions {
+    @BeforeEach
+    void initTokenBuilder() {
+      when(tokenBuilderFactory.create()).thenReturn(tokenBuilder);
+      when(tokenBuilder.build()).thenReturn(createdTokenFromMock);
+    }
+
+    @Test
+    @SubjectAware(
+      value = "trillian",
+      permissions = "repository:read,pull:42"
+    )
+    void shouldCreateReadToken() {
+      AccessToken readAccessToken = factory.createReadAccessToken(repository);
+
+      assertThat(readAccessToken).isSameAs(createdTokenFromMock);
+
+      verify(tokenBuilder).expiresIn(5, TimeUnit.MINUTES);
+      verify(tokenBuilder).scope(argThat(scope -> {
+        assertThat(scope.iterator()).toIterable()
+          .containsExactly("repository:read:42", "repository:pull:42");
+        return true;
+      }));
+    }
+
+    @Test
+    @SubjectAware(
+      value = "trillian",
+      permissions = "repository:read,pull,push:42"
+    )
+    void shouldCreateReadTokenWithPushIfPermitted() {
+      AccessToken readAccessToken = factory.createReadAccessToken(repository);
+
+      assertThat(readAccessToken).isSameAs(createdTokenFromMock);
+
+      verify(tokenBuilder).expiresIn(5, TimeUnit.MINUTES);
+      verify(tokenBuilder).scope(argThat(scope -> {
+        assertThat(scope.iterator()).toIterable()
+          .containsExactly("repository:read:42", "repository:pull:42", "repository:push:42");
+        return true;
+      }));
+    }
+
+    @Test
+    @SubjectAware(
+      value = "trillian",
+      permissions = "repository:read,pull,push:42"
+    )
+    void shouldCreateWriteToken() {
+      GitConfig config = new GitConfig();
+      config.setLfsWriteAuthorizationExpirationInMinutes(23);
+      when(handler.getConfig()).thenReturn(config);
+
+      AccessToken writeAccessToken = factory.createWriteAccessToken(repository);
+
+      assertThat(writeAccessToken).isSameAs(createdTokenFromMock);
+
+      verify(tokenBuilder).expiresIn(23, TimeUnit.MINUTES);
+      verify(tokenBuilder).scope(argThat(scope -> {
+        assertThat(scope.iterator()).toIterable()
+          .containsExactly("repository:read:42", "repository:pull:42", "repository:push:42");
+        return true;
+      }));
+    }
+  }
+
+  @Test
+  @SubjectAware(
+    value = "trillian",
+    permissions = "repository:read:42"
+  )
+  void shouldFailToCreateReadTokenWithoutPullPermission() {
+    assertThrows(UnauthorizedException.class, () -> factory.createReadAccessToken(repository));
+  }
+
+  @Test
+  @SubjectAware(
+    value = "trillian",
+    permissions = "repository:pull:42"
+  )
+  void shouldFailToCreateReadTokenWithoutReadPermission() {
+    assertThrows(UnauthorizedException.class, () -> factory.createReadAccessToken(repository));
+  }
+
+  @Test
+  @SubjectAware(
+    value = "trillian",
+    permissions = "repository:pull,push:42"
+  )
+  void shouldFailToCreateWriteTokenWithoutReadPermission() {
+    assertThrows(UnauthorizedException.class, () -> factory.createWriteAccessToken(repository));
+  }
+
+  @Test
+  @SubjectAware(
+    value = "trillian",
+    permissions = "repository:read,push:42"
+  )
+  void shouldFailToCreateWriteTokenWithoutPullPermission() {
+    assertThrows(UnauthorizedException.class, () -> factory.createWriteAccessToken(repository));
+  }
+
+  @Test
+  @SubjectAware(
+    value = "trillian",
+    permissions = "repository:read,pull:42"
+  )
+  void shouldFailToCreateWriteTokenWithoutPushPermission() {
+    assertThrows(UnauthorizedException.class, () -> factory.createWriteAccessToken(repository));
+  }
+}