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src/subversion/subversion/libsvn_ra_serf/get_deleted_rev.c  view on Meta::CPAN

 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing,
 *    software distributed under the License is distributed on an
 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *    KIND, either express or implied.  See the License for the
 *    specific language governing permissions and limitations
 *    under the License.
 * ====================================================================
 */


#include "svn_ra.h"
#include "svn_xml.h"
#include "svn_path.h"
#include "svn_private_config.h"

#include "../libsvn_ra/ra_loader.h"

#include "ra_serf.h"


/*
 * This enum represents the current state of our XML parsing for a REPORT.
 */
enum drev_state_e {
  INITIAL = 0,
  REPORT,
  VERSION_NAME
};

typedef struct drev_context_t {
  const char *path;
  svn_revnum_t peg_revision;
  svn_revnum_t end_revision;

  /* What revision was PATH@PEG_REVISION first deleted within
     the range PEG_REVISION-END-END_REVISION? */
  svn_revnum_t *revision_deleted;

} drev_context_t;

#define D_ "DAV:"
#define S_ SVN_XML_NAMESPACE
static const svn_ra_serf__xml_transition_t getdrev_ttable[] = {
  { INITIAL, S_, "get-deleted-rev-report", REPORT,
    FALSE, { NULL }, FALSE },

  { REPORT, D_, SVN_DAV__VERSION_NAME, VERSION_NAME,
    TRUE, { NULL }, TRUE },

  { 0 }
};


/* Conforms to svn_ra_serf__xml_closed_t  */
static svn_error_t *
getdrev_closed(svn_ra_serf__xml_estate_t *xes,
               void *baton,
               int leaving_state,
               const svn_string_t *cdata,
               apr_hash_t *attrs,
               apr_pool_t *scratch_pool)
{
  drev_context_t *drev_ctx = baton;

  SVN_ERR_ASSERT(leaving_state == VERSION_NAME);
  SVN_ERR_ASSERT(cdata != NULL);

  *drev_ctx->revision_deleted = SVN_STR_TO_REV(cdata->data);

  return SVN_NO_ERROR;
}


/* Implements svn_ra_serf__request_body_delegate_t */
static svn_error_t *
create_getdrev_body(serf_bucket_t **body_bkt,
                    void *baton,
                    serf_bucket_alloc_t *alloc,
                    apr_pool_t *pool)
{
  serf_bucket_t *buckets;
  drev_context_t *drev_ctx = baton;

  buckets = serf_bucket_aggregate_create(alloc);

  svn_ra_serf__add_open_tag_buckets(buckets, alloc,
                                    "S:get-deleted-rev-report",
                                    "xmlns:S", SVN_XML_NAMESPACE,
                                    "xmlns:D", "DAV:",
                                    NULL, NULL);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:path", drev_ctx->path,
                               alloc);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:peg-revision",
                               apr_ltoa(pool, drev_ctx->peg_revision),
                               alloc);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:end-revision",
                               apr_ltoa(pool, drev_ctx->end_revision),
                               alloc);

  svn_ra_serf__add_close_tag_buckets(buckets, alloc,
                                     "S:get-deleted-rev-report");

  *body_bkt = buckets;
  return SVN_NO_ERROR;
}

svn_error_t *
svn_ra_serf__get_deleted_rev(svn_ra_session_t *session,
                             const char *path,
                             svn_revnum_t peg_revision,
                             svn_revnum_t end_revision,
                             svn_revnum_t *revision_deleted,
                             apr_pool_t *pool)
{
  drev_context_t *drev_ctx;
  svn_ra_serf__session_t *ras = session->priv;
  svn_ra_serf__handler_t *handler;
  svn_ra_serf__xml_context_t *xmlctx;
  const char *req_url;
  svn_error_t *err;

  drev_ctx = apr_pcalloc(pool, sizeof(*drev_ctx));