[JENKINS-47113] Populate the authorities after a successful authentic…

…ation to Github (#87)

This change stores a GitHub token in a user property for reuse by other
authorization method.  Specifically, the token in which the user authorized for 
Jenkins to collect consenting through OAuth.

src/main/java/org/jenkinsci/plugins/GithubAccessTokenProperty.java

@@ -0,0 +1,66 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2017, CloudBees, Inc.
+ *
+ * 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 org.jenkinsci.plugins;
+
+import hudson.Extension;
+import hudson.model.User;
+import hudson.model.UserProperty;
+import hudson.model.UserPropertyDescriptor;
+import hudson.util.Secret;
+import org.jenkinsci.Symbol;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Remembers the access token used to connect to the Github server
+ *
+ * @since TODO
+ */
+public class GithubAccessTokenProperty extends UserProperty {
+    private final Secret accessToken;
+
+    public GithubAccessTokenProperty(String accessToken) {
+        this.accessToken = Secret.fromString(accessToken);
+    }
+
+    public @Nonnull Secret getAccessToken() {
+        return accessToken;
+    }
+
+    @Extension
+    @Symbol("githubAccessToken")
+    public static final class DescriptorImpl extends UserPropertyDescriptor {
+        @Override
+        public boolean isEnabled() {
+            // does not show elements in /<user>/configure/
+            return false;
+        }
+
+        @Override
+        public UserProperty newInstance(User user) {
+            // no default property
+            return null;
+        }
+    }
+}

src/main/java/org/jenkinsci/plugins/GithubAuthenticationToken.java

@@ -412,6 +412,8 @@ public GithubOAuthUserDetails getUserDetails(String username) throws IOException
 
     public GrantedAuthority[] getGrantedAuthorities(GHUser user) {
         List<GrantedAuthority> groups = new ArrayList<GrantedAuthority>();
+        groups.add(SecurityRealm.AUTHENTICATED_AUTHORITY);
+
         try {
             GHPersonSet<GHOrganization> orgs;
             if(myRealm == null) {
@@ -444,7 +446,7 @@ public GithubOAuthUserDetails getUserDetails(String username) throws IOException
                         GHTeam team = entry.getValue();
                         if (team.hasMember(user)) {
                             groups.add(new GrantedAuthorityImpl(orgLogin + GithubOAuthGroupDetails.ORG_TEAM_SEPARATOR
-                                    + team));
+                                    + team.getName()));
                         }
                     }
                 } catch (IOException | Error ignore) {

src/main/java/org/jenkinsci/plugins/GithubSecretStorage.java

@@ -0,0 +1,62 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2017, CloudBees, Inc.
+ *
+ * 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 org.jenkinsci.plugins;
+
+import hudson.model.User;
+import org.jfree.util.Log;
+
+import javax.annotation.CheckForNull;
+import javax.annotation.Nonnull;
+import java.io.IOException;
+
+public class GithubSecretStorage {
+
+    private GithubSecretStorage(){
+        // no accessible constructor
+    }
+
+    public static boolean contains(@Nonnull User user) {
+        return user.getProperty(GithubAccessTokenProperty.class) != null;
+    }
+
+    public static @CheckForNull String retrieve(@Nonnull User user) {
+        GithubAccessTokenProperty property = user.getProperty(GithubAccessTokenProperty.class);
+        if (property == null) {
+            Log.debug("Cache miss for username: " + user.getId());
+            return null;
+        } else {
+            Log.debug("Token retrieved using cache for username: " + user.getId());
+            return property.getAccessToken().getPlainText();
+        }
+    }
+
+    public static void put(@Nonnull User user, @Nonnull String accessToken) {
+        Log.debug("Populating the cache for username: " + user.getId());
+        try {
+            user.addProperty(new GithubAccessTokenProperty(accessToken));
+        } catch (IOException e) {
+            Log.warn("Received an exception when trying to add the GitHub access token to the user: " + user.getId(), e);
+        }
+    }
+}

src/main/java/org/jenkinsci/plugins/GithubSecurityRealm.java

@@ -379,6 +379,9 @@ public HttpResponse doFinishLogin(StaplerRequest request)
             if (u == null) {
                 throw new IllegalStateException("Can't find user");
             }
+
+            GithubSecretStorage.put(u, accessToken);
+
             u.setFullName(self.getName());
             // Set email from github only if empty
             if (!u.getProperty(Mailer.UserProperty.class).hasExplicitlyConfiguredAddress()) {
@@ -398,6 +401,10 @@ public HttpResponse doFinishLogin(StaplerRequest request)
             }
 
             SecurityListener.fireAuthenticated(new GithubOAuthUserDetails(self.getLogin(), auth.getAuthorities()));
+
+            // While LastGrantedAuthorities are triggered by that event, we cannot trigger it there
+            // or modifications in organizations will be not reflected when using API Token, due to that caching
+            // SecurityListener.fireLoggedIn(self.getLogin());
         } else {
             Log.info("Github did not return an access token.");
         }
@@ -477,6 +484,14 @@ public Authentication authenticate(Authentication authentication)
                         UsernamePasswordAuthenticationToken token = (UsernamePasswordAuthenticationToken) authentication;
                         GithubAuthenticationToken github = new GithubAuthenticationToken(token.getCredentials().toString(), getGithubApiUri());
                         SecurityContextHolder.getContext().setAuthentication(github);
+
+                        User user = User.getById(token.getName(), false);
+                        if(user != null){
+                            GithubSecretStorage.put(user, token.getCredentials().toString());
+                        }
+
+                        SecurityListener.fireAuthenticated(new GithubOAuthUserDetails(token.getName(), github.getAuthorities()));
+
                         return github;
                     } catch (IOException e) {
                             throw new RuntimeException(e);
@@ -621,10 +636,22 @@ public UserDetails loadUserByUsername(String username)
             throw new UsernameNotFoundException("Using org*team format instead of username: " + username);
         }
 
+        User localUser = User.getById(username, false);
+
         Authentication token = SecurityContextHolder.getContext().getAuthentication();
 
         if (token == null) {
-            throw new UserMayOrMayNotExistException("Could not get auth token.");
+            if(localUser != null && GithubSecretStorage.contains(localUser)){
+                String accessToken = GithubSecretStorage.retrieve(localUser);
+                try {
+                    token = new GithubAuthenticationToken(accessToken, getGithubApiUri());
+                } catch (IOException e) {
+                    throw new UserMayOrMayNotExistException("Could not connect to GitHub API server, target URL = " + getGithubApiUri(), e);
+                }
+                SecurityContextHolder.getContext().setAuthentication(token);
+            }else{
+                throw new UserMayOrMayNotExistException("Could not get auth token.");
+            }
         }
 
         GithubAuthenticationToken authToken;
@@ -639,7 +666,6 @@ public UserDetails loadUserByUsername(String username)
          * Always lookup the local user first. If we can't resolve it then we can burn an API request to Github for this user
          * Taken from hudson.security.HudsonPrivateSecurityRealm#loadUserByUsername(java.lang.String)
          */
-        User localUser = User.getById(username, false);
         if (localUser != null) {
             return new GithubOAuthUserDetails(username, authToken);
         }