示例#1
0
文件: RevObject.java 项目: saces/jgit
 final byte[] loadCanonical(final RevWalk walk)
     throws IOException, MissingObjectException, IncorrectObjectTypeException,
         CorruptObjectException {
   final ObjectLoader ldr = walk.db.openObject(walk.curs, this);
   if (ldr == null) throw new MissingObjectException(this, getType());
   final byte[] data = ldr.getCachedBytes();
   if (getType() != ldr.getType()) throw new IncorrectObjectTypeException(this, getType());
   return data;
 }
示例#2
0
 public static GitObject createGitObject(RepositoryData repositoryData, String hash)
     throws MissingObjectException, IOException {
   Repository repository = repositoryData.getRepository();
   ObjectId id = repository.resolve(hash);
   ObjectLoader loader = repository.open(id);
   GitObject object = null;
   switch (loader.getType()) {
     case Constants.OBJ_COMMIT:
       object = new Commit(hash, new String(loader.getCachedBytes()));
       break;
     case Constants.OBJ_TREE:
       object = new Tree(hash, loader.getBytes());
       break;
     case Constants.OBJ_BLOB:
       object = new Blob(hash, new String(loader.getCachedBytes()));
       break;
     case Constants.OBJ_TAG:
       object = new Tag(hash, new String(loader.getCachedBytes()));
       break;
   }
   object.setRepositoryData(repositoryData);
   return object;
 }
示例#3
0
  protected byte[] readFile(String fileName) throws IOException {
    if (revision == null) {
      return new byte[] {};
    }

    TreeWalk tw = TreeWalk.forPath(reader, fileName, revision.getTree());
    if (tw != null) {
      ObjectLoader obj = reader.open(tw.getObjectId(0), Constants.OBJ_BLOB);
      return obj.getCachedBytes(Integer.MAX_VALUE);

    } else {
      return new byte[] {};
    }
  }
 private static void copy(TemporaryBuffer.Heap tinyPack, ObjectLoader ldr) throws IOException {
   final byte[] buf = new byte[64];
   final byte[] content = ldr.getCachedBytes();
   int dataLength = content.length;
   int nextLength = dataLength >>> 4;
   int size = 0;
   buf[size++] =
       (byte) ((nextLength > 0 ? 0x80 : 0x00) | (ldr.getType() << 4) | (dataLength & 0x0F));
   dataLength = nextLength;
   while (dataLength > 0) {
     nextLength >>>= 7;
     buf[size++] = (byte) ((nextLength > 0 ? 0x80 : 0x00) | (dataLength & 0x7F));
     dataLength = nextLength;
   }
   tinyPack.write(buf, 0, size);
   deflate(tinyPack, content);
 }
示例#5
0
  /**
   * Push a candidate object onto the generator's traversal stack.
   *
   * <p>Candidates should be pushed in history order from oldest-to-newest. Applications should push
   * the starting commit first, then the index revision (if the index is interesting), and finally
   * the working tree copy (if the working tree is interesting).
   *
   * @param description description of the blob revision, such as "Working Tree".
   * @param id may be a commit or a blob.
   * @return {@code this}
   * @throws IOException the repository cannot be read.
   */
  public BlameGenerator push(String description, AnyObjectId id) throws IOException {
    ObjectLoader ldr = reader.open(id);
    if (ldr.getType() == OBJ_BLOB) {
      if (description == null) description = JGitText.get().blameNotCommittedYet;
      BlobCandidate c = new BlobCandidate(description, resultPath);
      c.sourceBlob = id.toObjectId();
      c.sourceText = new RawText(ldr.getCachedBytes(Integer.MAX_VALUE));
      c.regionList = new Region(0, 0, c.sourceText.size());
      remaining = c.sourceText.size();
      push(c);
      return this;
    }

    RevCommit commit = revPool.parseCommit(id);
    if (!find(commit, resultPath)) return this;

    Candidate c = new Candidate(commit, resultPath);
    c.sourceBlob = idBuf.toObjectId();
    c.loadText(reader);
    c.regionList = new Region(0, 0, c.sourceText.size());
    remaining = c.sourceText.size();
    push(c);
    return this;
  }
示例#6
0
  @Override
  protected void doGet(final HttpServletRequest req, final HttpServletResponse rsp)
      throws IOException {
    String keyStr = req.getPathInfo();

    // We shouldn't have to do this extra decode pass, but somehow we
    // are now receiving our "^1" suffix as "%5E1", which confuses us
    // downstream. Other times we get our embedded "," as "%2C", which
    // is equally bad. And yet when these happen a "%2F" is left as-is,
    // rather than escaped as "%252F", which makes me feel really really
    // uncomfortable with a blind decode right here.
    //
    keyStr = URLDecoder.decode(keyStr, "UTF-8");

    if (!keyStr.startsWith("/")) {
      rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
      return;
    }
    keyStr = keyStr.substring(1);

    final Patch.Key patchKey;
    final int side;
    {
      final int c = keyStr.lastIndexOf('^');
      if (c == 0) {
        rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
      }

      if (c < 0) {
        side = 0;

      } else {
        try {
          side = Integer.parseInt(keyStr.substring(c + 1));
          keyStr = keyStr.substring(0, c);
        } catch (NumberFormatException e) {
          rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
          return;
        }
      }

      try {
        patchKey = Patch.Key.parse(keyStr);
      } catch (NumberFormatException e) {
        rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
      }
    }

    final Change.Id changeId = patchKey.getParentKey().getParentKey();
    final Project project;
    final PatchSet patchSet;
    try {
      final ReviewDb db = requestDb.get();
      final ChangeControl control = changeControl.validateFor(changeId);

      project = control.getProject();
      patchSet = db.patchSets().get(patchKey.getParentKey());
      if (patchSet == null) {
        rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
      }
    } catch (NoSuchChangeException e) {
      rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
      return;
    } catch (OrmException e) {
      getServletContext().log("Cannot query database", e);
      rsp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
      return;
    }

    final Repository repo;
    try {
      repo = repoManager.openRepository(project.getNameKey());
    } catch (RepositoryNotFoundException e) {
      getServletContext().log("Cannot open repository", e);
      rsp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
      return;
    }

    final ObjectLoader blobLoader;
    final RevCommit fromCommit;
    final String suffix;
    final String path = patchKey.getFileName();
    try {
      final ObjectReader reader = repo.newObjectReader();
      try {
        final RevWalk rw = new RevWalk(reader);
        final RevCommit c;
        final TreeWalk tw;

        c = rw.parseCommit(ObjectId.fromString(patchSet.getRevision().get()));
        if (side == 0) {
          fromCommit = c;
          suffix = "new";

        } else if (1 <= side && side - 1 < c.getParentCount()) {
          fromCommit = rw.parseCommit(c.getParent(side - 1));
          if (c.getParentCount() == 1) {
            suffix = "old";
          } else {
            suffix = "old" + side;
          }

        } else {
          rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
          return;
        }

        tw = TreeWalk.forPath(reader, path, fromCommit.getTree());
        if (tw == null) {
          rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
          return;
        }

        if (tw.getFileMode(0).getObjectType() == Constants.OBJ_BLOB) {
          blobLoader = reader.open(tw.getObjectId(0), Constants.OBJ_BLOB);

        } else {
          rsp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
          return;
        }
      } finally {
        reader.release();
      }
    } catch (IOException e) {
      getServletContext().log("Cannot read repository", e);
      rsp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
      return;
    } catch (RuntimeException e) {
      getServletContext().log("Cannot read repository", e);
      rsp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
      return;
    } finally {
      repo.close();
    }

    final byte[] raw = blobLoader.isLarge() ? null : blobLoader.getCachedBytes();
    final long when = fromCommit.getCommitTime() * 1000L;

    rsp.setDateHeader("Last-Modified", when);
    rsp.setDateHeader("Expires", 0L);
    rsp.setHeader("Pragma", "no-cache");
    rsp.setHeader("Cache-Control", "no-cache, must-revalidate");

    OutputStream out;
    ZipOutputStream zo;

    final MimeType contentType = registry.getMimeType(path, raw);
    if (!registry.isSafeInline(contentType)) {
      // The content may not be safe to transmit inline, as a browser might
      // interpret it as HTML or JavaScript hosted by this site. Such code
      // might then run in the site's security domain, and may be able to use
      // the user's cookies to perform unauthorized actions.
      //
      // Usually, wrapping the content into a ZIP file forces the browser to
      // save the content to the local system instead.
      //

      rsp.setContentType(ZIP.toString());
      rsp.setHeader(
          "Content-Disposition",
          "attachment; filename=\"" + safeFileName(path, suffix) + ".zip" + "\"");

      zo = new ZipOutputStream(rsp.getOutputStream());

      final ZipEntry e = new ZipEntry(safeFileName(path, rand(req, suffix)));
      e.setComment(fromCommit.name() + ":" + path);
      e.setSize(blobLoader.getSize());
      e.setTime(when);
      zo.putNextEntry(e);
      out = zo;

    } else {
      rsp.setContentType(contentType.toString());
      rsp.setHeader("Content-Length", "" + blobLoader.getSize());

      out = rsp.getOutputStream();
      zo = null;
    }

    if (raw != null) {
      out.write(raw);
    } else {
      blobLoader.copyTo(out);
    }

    if (zo != null) {
      zo.closeEntry();
    }
    out.close();
  }