/* Create a repository with a filesystem based on OPTS in a subdir NAME,
 * commit the standard Greek tree as revision 1, and set *REPOS_URL to
 * the URL we will use to access it.
 *
 * ### This always returns a file: URL. We should upgrade this to use the
 *     test suite's specified URL scheme instead. */
static svn_error_t *
create_greek_repos(const char **repos_url,
                   const char *name,
                   const svn_test_opts_t *opts,
                   apr_pool_t *pool)
{
  svn_repos_t *repos;
  svn_revnum_t committed_rev;
  svn_fs_txn_t *txn;
  svn_fs_root_t *txn_root;

  /* Create a filesytem and repository. */
  SVN_ERR(svn_test__create_repos(&repos, name, opts, pool));

  /* Prepare and commit a txn containing the Greek tree. */
  SVN_ERR(svn_fs_begin_txn2(&txn, svn_repos_fs(repos), 0 /* rev */,
                            0 /* flags */, pool));
  SVN_ERR(svn_fs_txn_root(&txn_root, txn, pool));
  SVN_ERR(svn_test__create_greek_tree(txn_root, pool));
  SVN_ERR(svn_repos_fs_commit_txn(NULL, repos, &committed_rev, txn, pool));
  SVN_TEST_ASSERT(SVN_IS_VALID_REVNUM(committed_rev));

  SVN_ERR(svn_uri_get_file_url_from_dirent(repos_url, name, pool));
  return SVN_NO_ERROR;
}
/*
** Append the specified lock(s) to the set of locks on this resource.
**
** If "make_indirect" is true (non-zero), then the specified lock(s)
** should be converted to an indirect lock (if it is a direct lock)
** before appending. Note that the conversion to an indirect lock does
** not alter the passed-in lock -- the change is internal the
** append_locks function.
**
** Multiple locks are specified using the lock->next links.
*/
static dav_error *
append_locks(dav_lockdb *lockdb,
             const dav_resource *resource,
             int make_indirect,
             const dav_lock *lock)
{
  dav_lockdb_private *info = lockdb->info;
  svn_lock_t *slock;
  svn_error_t *serr;
  dav_error *derr;

  /* If the resource's fs path is unreadable, we don't allow a lock to
     be created on it. */
  if (! dav_svn__allow_read_resource(resource, SVN_INVALID_REVNUM,
                                     resource->pool))
    return dav_svn__new_error(resource->pool, HTTP_FORBIDDEN,
                              DAV_ERR_LOCK_SAVE_LOCK,
                              "Path is not accessible.");

  if (lock->next)
    return dav_svn__new_error(resource->pool, HTTP_BAD_REQUEST,
                              DAV_ERR_LOCK_SAVE_LOCK,
                              "Tried to attach multiple locks to a resource.");

  /* RFC2518bis (section 7.4) doesn't require us to support
     'lock-null' resources at all.  Instead, it asks that we treat
     'LOCK nonexistentURL' as a PUT (followed by a LOCK) of a 0-byte file.  */
  if (! resource->exists)
    {
      svn_revnum_t rev, new_rev;
      svn_fs_txn_t *txn;
      svn_fs_root_t *txn_root;
      const char *conflict_msg;
      dav_svn_repos *repos = resource->info->repos;
      apr_hash_t *revprop_table = apr_hash_make(resource->pool);
      apr_hash_set(revprop_table, SVN_PROP_REVISION_AUTHOR,
                   APR_HASH_KEY_STRING, svn_string_create(repos->username,
                                                          resource->pool));

      if (resource->info->repos->is_svn_client)
        return dav_svn__new_error(resource->pool, HTTP_METHOD_NOT_ALLOWED,
                                  DAV_ERR_LOCK_SAVE_LOCK,
                                  "Subversion clients may not lock "
                                  "nonexistent paths.");

      else if (! resource->info->repos->autoversioning)
        return dav_svn__new_error(resource->pool, HTTP_METHOD_NOT_ALLOWED,
                                  DAV_ERR_LOCK_SAVE_LOCK,
                                  "Attempted to lock non-existent path; "
                                  "turn on autoversioning first.");

      /* Commit a 0-byte file: */

      if ((serr = svn_fs_youngest_rev(&rev, repos->fs, resource->pool)))
        return dav_svn__convert_err(serr, HTTP_INTERNAL_SERVER_ERROR,
                                    "Could not determine youngest revision",
                                    resource->pool);

      if ((serr = svn_repos_fs_begin_txn_for_commit2(&txn, repos->repos, rev,
                                                     revprop_table,
                                                     resource->pool)))
        return dav_svn__convert_err(serr, HTTP_INTERNAL_SERVER_ERROR,
                                    "Could not begin a transaction",
                                    resource->pool);

      if ((serr = svn_fs_txn_root(&txn_root, txn, resource->pool)))
        return dav_svn__convert_err(serr, HTTP_INTERNAL_SERVER_ERROR,
                                    "Could not begin a transaction",
                                    resource->pool);

      if ((serr = svn_fs_make_file(txn_root, resource->info->repos_path,
                                   resource->pool)))
        return dav_svn__convert_err(serr, HTTP_INTERNAL_SERVER_ERROR,
                                    "Could not create empty file.",
                                    resource->pool);

      if ((serr = dav_svn__attach_auto_revprops(txn,
                                                resource->info->repos_path,
                                                resource->pool)))
        return dav_svn__convert_err(serr, HTTP_INTERNAL_SERVER_ERROR,
                                    "Could not create empty file.",
                                    resource->pool);

      serr = svn_repos_fs_commit_txn(&conflict_msg, repos->repos,
                                     &new_rev, txn, resource->pool);
      if (SVN_IS_VALID_REVNUM(new_rev))
        {
          /* ### Log an error in post commit FS processing? */
          svn_error_clear(serr);
        }
      else
        {
          svn_error_clear(svn_fs_abort_txn(txn, resource->pool));
          if (serr)
            return dav_svn__convert_err(serr, HTTP_CONFLICT,
                                        apr_psprintf(resource->pool,
                                                     "Conflict when "
                                                     "committing '%s'.",
                                                     conflict_msg),
                                        resource->pool);
          else
            return dav_svn__new_error(resource->pool,
                                      HTTP_INTERNAL_SERVER_ERROR,
                                      0,
                                      "Commit failed but there was no error "
                                      "provided.");
        }
    }

  /* Convert the dav_lock into an svn_lock_t. */
  derr = dav_lock_to_svn_lock(&slock, lock, resource->info->repos_path,
                              info, resource->info->repos->is_svn_client,
                              resource->pool);
  if (derr)
    return derr;

  /* Now use the svn_lock_t to actually perform the lock. */
  serr = svn_repos_fs_lock(&slock,
                           resource->info->repos->repos,
                           slock->path,
                           slock->token,
                           slock->comment,
                           slock->is_dav_comment,
                           slock->expiration_date,
                           info->working_revnum,
                           info->lock_steal,
                           resource->pool);

  if (serr && serr->apr_err == SVN_ERR_FS_NO_USER)
    {
      svn_error_clear(serr);
      return dav_svn__new_error(resource->pool, HTTP_UNAUTHORIZED,
                                DAV_ERR_LOCK_SAVE_LOCK,
                                "Anonymous lock creation is not allowed.");
    }
  else if (serr)
    return dav_svn__convert_err(serr, HTTP_INTERNAL_SERVER_ERROR,
                                "Failed to create new lock.",
                                resource->pool);


  /* A standard webdav LOCK response doesn't include any information
     about the creation date.  We send it in a custom header, so that
     svn clients can fill in svn_lock_t->creation_date.  A generic DAV
     client should just ignore the header. */
  apr_table_setn(info->r->headers_out, SVN_DAV_CREATIONDATE_HEADER,
                 svn_time_to_cstring(slock->creation_date, resource->pool));

  /* A standard webdav LOCK response doesn't include any information
     about the owner of the lock.  ('DAV:owner' has nothing to do with
     authorization, it's just a comment that we map to
     svn_lock_t->comment.)  We send the owner in a custom header, so
     that svn clients can fill in svn_lock_t->owner.  A generic DAV
     client should just ignore the header. */
  apr_table_setn(info->r->headers_out, SVN_DAV_LOCK_OWNER_HEADER,
                 slock->owner);

  /* Log the locking as a 'high-level' action. */
  dav_svn__operational_log(resource->info,
                           svn_log__lock_one_path(slock->path, info->lock_steal,
                                                  resource->info->r->pool));

  return 0;
}
Example #3
0
static svn_error_t *
close_edit(void *edit_baton,
           apr_pool_t *pool)
{
  struct edit_baton *eb = edit_baton;
  svn_revnum_t new_revision = SVN_INVALID_REVNUM;
  svn_error_t *err;
  const char *conflict;
  const char *post_commit_err = NULL;

  /* If no transaction has been created (ie. if open_root wasn't
     called before close_edit), abort the operation here with an
     error. */
  if (! eb->txn)
    return svn_error_create(SVN_ERR_REPOS_BAD_ARGS, NULL,
                            "No valid transaction supplied to close_edit");

  /* Commit. */
  err = svn_repos_fs_commit_txn(&conflict, eb->repos,
                                &new_revision, eb->txn, pool);

  if (SVN_IS_VALID_REVNUM(new_revision))
    {
      if (err)
        {
          /* If the error was in post-commit, then the commit itself
             succeeded.  In which case, save the post-commit warning
             (to be reported back to the client, who will probably
             display it as a warning) and clear the error. */
          post_commit_err = svn_repos__post_commit_error_str(err, pool);
          svn_error_clear(err);
          err = SVN_NO_ERROR;
        }
    }
  else
    {
      /* ### todo: we should check whether it really was a conflict,
         and return the conflict info if so? */

      /* If the commit failed, it's *probably* due to a conflict --
         that is, the txn being out-of-date.  The filesystem gives us
         the ability to continue diddling the transaction and try
         again; but let's face it: that's not how the cvs or svn works
         from a user interface standpoint.  Thus we don't make use of
         this fs feature (for now, at least.)

         So, in a nutshell: svn commits are an all-or-nothing deal.
         Each commit creates a new fs txn which either succeeds or is
         aborted completely.  No second chances;  the user simply
         needs to update and commit again  :) */

      eb->txn_aborted = TRUE;

      return svn_error_trace(
                svn_error_compose_create(err,
                                         svn_fs_abort_txn(eb->txn, pool)));
    }

  /* Pass new revision information to the caller's callback. */
  {
    svn_string_t *date, *author;
    svn_commit_info_t *commit_info;

    /* Even if there was a post-commit hook failure, it's more serious
       if one of the calls here fails, so we explicitly check for errors
       here, while saving the possible post-commit error for later. */

    err = svn_fs_revision_prop(&date, svn_repos_fs(eb->repos),
                                new_revision, SVN_PROP_REVISION_DATE,
                                pool);
    if (! err)
      {
        err = svn_fs_revision_prop(&author, svn_repos_fs(eb->repos),
                                   new_revision, SVN_PROP_REVISION_AUTHOR,
                                   pool);
      }

    if ((! err) && eb->commit_callback)
      {
        commit_info = svn_create_commit_info(pool);

        /* fill up the svn_commit_info structure */
        commit_info->revision = new_revision;
        commit_info->date = date ? date->data : NULL;
        commit_info->author = author ? author->data : NULL;
        commit_info->post_commit_err = post_commit_err;
        err = (*eb->commit_callback)(commit_info,
                                     eb->commit_callback_baton,
                                     pool);
      }
  }

  return svn_error_trace(err);
}
Example #4
0
static svn_error_t *
close_edit(void *edit_baton,
           apr_pool_t *pool)
{
  struct edit_baton *eb = edit_baton;
  svn_revnum_t new_revision = SVN_INVALID_REVNUM;
  svn_error_t *err;
  const char *conflict;
  const char *post_commit_err = NULL;

  /* If no transaction has been created (ie. if open_root wasn't
     called before close_edit), abort the operation here with an
     error. */
  if (! eb->txn)
    return svn_error_create(SVN_ERR_REPOS_BAD_ARGS, NULL,
                            "No valid transaction supplied to close_edit");

  /* Commit. */
  err = svn_repos_fs_commit_txn(&conflict, eb->repos,
                                &new_revision, eb->txn, pool);

  if (SVN_IS_VALID_REVNUM(new_revision))
    {
      /* The actual commit succeeded, i.e. the transaction does no longer
         exist and we can't use txn_root for conflict resolution etc.

         Since close_edit is supposed to release resources, do it now. */
      if (eb->txn_root)
        svn_fs_close_root(eb->txn_root);

      if (err)
        {
          /* If the error was in post-commit, then the commit itself
             succeeded.  In which case, save the post-commit warning
             (to be reported back to the client, who will probably
             display it as a warning) and clear the error. */
          post_commit_err = svn_repos__post_commit_error_str(err, pool);
          svn_error_clear(err);
        }

      /* Make sure a future abort doesn't perform
         any work. This may occur if the commit
         callback returns an error! */

      eb->txn = NULL;
      eb->txn_root = NULL;
    }
  else
    {
      /* ### todo: we should check whether it really was a conflict,
         and return the conflict info if so? */

      /* If the commit failed, it's *probably* due to a conflict --
         that is, the txn being out-of-date.  The filesystem gives us
         the ability to continue diddling the transaction and try
         again; but let's face it: that's not how the cvs or svn works
         from a user interface standpoint.  Thus we don't make use of
         this fs feature (for now, at least.)

         So, in a nutshell: svn commits are an all-or-nothing deal.
         Each commit creates a new fs txn which either succeeds or is
         aborted completely.  No second chances;  the user simply
         needs to update and commit again  :) */

      eb->txn_aborted = TRUE;

      return svn_error_trace(
                svn_error_compose_create(err,
                                         svn_fs_abort_txn(eb->txn, pool)));
    }

  /* At this point, the post-commit error has been converted to a string.
     That information will be passed to a callback, if provided. If the
     callback invocation fails in some way, that failure is returned here.
     IOW, the post-commit error information is low priority compared to
     other gunk here.  */

  /* Pass new revision information to the caller's callback. */
  return svn_error_trace(invoke_commit_cb(eb->commit_callback,
                                          eb->commit_callback_baton,
                                          eb->repos->fs,
                                          new_revision,
                                          post_commit_err,
                                          pool));
}