diff options
Diffstat (limited to 'src/main/java/com/gitblit/utils/JGitUtils.java')
| -rw-r--r-- | src/main/java/com/gitblit/utils/JGitUtils.java | 182 |
1 files changed, 179 insertions, 3 deletions
diff --git a/src/main/java/com/gitblit/utils/JGitUtils.java b/src/main/java/com/gitblit/utils/JGitUtils.java index 3f01eeaf..cf6ec26d 100644 --- a/src/main/java/com/gitblit/utils/JGitUtils.java +++ b/src/main/java/com/gitblit/utils/JGitUtils.java @@ -32,6 +32,7 @@ import java.util.Map; import java.util.Map.Entry;
import java.util.regex.Pattern;
+import org.apache.commons.io.filefilter.TrueFileFilter;
import org.eclipse.jgit.api.CloneCommand;
import org.eclipse.jgit.api.FetchCommand;
import org.eclipse.jgit.api.Git;
@@ -58,6 +59,7 @@ import org.eclipse.jgit.lib.RefUpdate; import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryCache.FileKey;
+import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.lib.TreeFormatter;
import org.eclipse.jgit.revwalk.RevBlob;
import org.eclipse.jgit.revwalk.RevCommit;
@@ -259,14 +261,188 @@ public class JGitUtils { * @return Repository
*/
public static Repository createRepository(File repositoriesFolder, String name) {
+ return createRepository(repositoriesFolder, name, "FALSE");
+ }
+
+ /**
+ * Creates a bare, shared repository.
+ *
+ * @param repositoriesFolder
+ * @param name
+ * @param shared
+ * the setting for the --shared option of "git init".
+ * @return Repository
+ */
+ public static Repository createRepository(File repositoriesFolder, String name, String shared) {
try {
- Git git = Git.init().setDirectory(new File(repositoriesFolder, name)).setBare(true).call();
- return git.getRepository();
- } catch (GitAPIException e) {
+ Repository repo = null;
+ try {
+ Git git = Git.init().setDirectory(new File(repositoriesFolder, name)).setBare(true).call();
+ repo = git.getRepository();
+ } catch (GitAPIException e) {
+ throw new RuntimeException(e);
+ }
+
+ GitConfigSharedRepository sharedRepository = new GitConfigSharedRepository(shared);
+ if (sharedRepository.isShared()) {
+ StoredConfig config = repo.getConfig();
+ config.setString("core", null, "sharedRepository", sharedRepository.getValue());
+ config.setBoolean("receive", null, "denyNonFastforwards", true);
+ config.save();
+
+ if (! JnaUtils.isWindows()) {
+ Iterator<File> iter = org.apache.commons.io.FileUtils.iterateFilesAndDirs(repo.getDirectory(),
+ TrueFileFilter.INSTANCE, TrueFileFilter.INSTANCE);
+ // Adjust permissions on file/directory
+ while (iter.hasNext()) {
+ adjustSharedPerm(iter.next(), sharedRepository);
+ }
+ }
+ }
+
+ return repo;
+ } catch (IOException e) {
throw new RuntimeException(e);
}
}
+ private enum GitConfigSharedRepositoryValue
+ {
+ UMASK("0", 0), FALSE("0", 0), OFF("0", 0), NO("0", 0),
+ GROUP("1", 0660), TRUE("1", 0660), ON("1", 0660), YES("1", 0660),
+ ALL("2", 0664), WORLD("2", 0664), EVERYBODY("2", 0664),
+ Oxxx(null, -1);
+
+ private String configValue;
+ private int permValue;
+ private GitConfigSharedRepositoryValue(String config, int perm) { configValue = config; permValue = perm; };
+
+ public String getConfigValue() { return configValue; };
+ public int getPerm() { return permValue; };
+
+ }
+
+ private static class GitConfigSharedRepository
+ {
+ private int intValue;
+ private GitConfigSharedRepositoryValue enumValue;
+
+ GitConfigSharedRepository(String s) {
+ if ( s == null || s.trim().isEmpty() ) {
+ enumValue = GitConfigSharedRepositoryValue.GROUP;
+ }
+ else {
+ try {
+ // Try one of the string values
+ enumValue = GitConfigSharedRepositoryValue.valueOf(s.trim().toUpperCase());
+ } catch (IllegalArgumentException iae) {
+ try {
+ // Try if this is an octal number
+ int i = Integer.parseInt(s, 8);
+ if ( (i & 0600) != 0600 ) {
+ String msg = String.format("Problem with core.sharedRepository filemode value (0%03o).\nThe owner of files must always have read and write permissions.", i);
+ throw new IllegalArgumentException(msg);
+ }
+ intValue = i & 0666;
+ enumValue = GitConfigSharedRepositoryValue.Oxxx;
+ } catch (NumberFormatException nfe) {
+ throw new IllegalArgumentException("Bad configuration value for 'shared': '" + s + "'");
+ }
+ }
+ }
+ }
+
+ String getValue() {
+ if ( enumValue == GitConfigSharedRepositoryValue.Oxxx ) {
+ if (intValue == 0) return "0";
+ return String.format("0%o", intValue);
+ }
+ return enumValue.getConfigValue();
+ }
+
+ int getPerm() {
+ if ( enumValue == GitConfigSharedRepositoryValue.Oxxx ) return intValue;
+ return enumValue.getPerm();
+ }
+
+ boolean isCustom() {
+ return enumValue == GitConfigSharedRepositoryValue.Oxxx;
+ }
+
+ boolean isShared() {
+ return (enumValue.getPerm() > 0) || enumValue == GitConfigSharedRepositoryValue.Oxxx;
+ }
+ }
+
+
+ /**
+ * Adjust file permissions of a file/directory for shared repositories
+ *
+ * @param path
+ * File that should get its permissions changed.
+ * @param configShared
+ * Configuration string value for the shared mode.
+ * @return Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned.
+ */
+ public static int adjustSharedPerm(File path, String configShared) {
+ return adjustSharedPerm(path, new GitConfigSharedRepository(configShared));
+ }
+
+
+ /**
+ * Adjust file permissions of a file/directory for shared repositories
+ *
+ * @param path
+ * File that should get its permissions changed.
+ * @param configShared
+ * Configuration setting for the shared mode.
+ * @return Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned.
+ */
+ public static int adjustSharedPerm(File path, GitConfigSharedRepository configShared) {
+ if (! configShared.isShared()) return 0;
+ if (! path.exists()) return -1;
+
+ int perm = configShared.getPerm();
+ JnaUtils.Filestat stat = JnaUtils.getFilestat(path);
+ if (stat == null) return -1;
+ int mode = stat.mode;
+ if (mode < 0) return -1;
+
+ // Now, here is the kicker: Under Linux, chmod'ing a sgid file whose guid is different from the process'
+ // effective guid will reset the sgid flag of the file. Since there is no way to get the sgid flag back in
+ // that case, we decide to rather not touch is and getting the right permissions will have to be achieved
+ // in a different way, e.g. by using an appropriate umask for the Gitblit process.
+ if (System.getProperty("os.name").toLowerCase().startsWith("linux")) {
+ if ( ((mode & (JnaUtils.S_ISGID | JnaUtils.S_ISUID)) != 0)
+ && stat.gid != JnaUtils.getegid() ) {
+ LOGGER.debug("Not adjusting permissions to prevent clearing suid/sgid bits for '" + path + "'" );
+ return 0;
+ }
+ }
+
+ // If the owner has no write access, delete it from group and other, too.
+ if ((mode & JnaUtils.S_IWUSR) == 0) perm &= ~0222;
+ // If the owner has execute access, set it for all blocks that have read access.
+ if ((mode & JnaUtils.S_IXUSR) == JnaUtils.S_IXUSR) perm |= (perm & 0444) >> 2;
+
+ if (configShared.isCustom()) {
+ // Use the custom value for access permissions.
+ mode = (mode & ~0777) | perm;
+ }
+ else {
+ // Just add necessary bits to existing permissions.
+ mode |= perm;
+ }
+
+ if (path.isDirectory()) {
+ mode |= (mode & 0444) >> 2;
+ mode |= JnaUtils.S_ISGID;
+ }
+
+ return JnaUtils.setFilemode(path, mode);
+ }
+
+
/**
* Returns a list of repository names in the specified folder.
*
|