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


#include <apr_uri.h>

#include <serf.h>

#include "svn_hash.h"
#include "svn_path.h"
#include "svn_pools.h"
#include "svn_ra.h"
#include "svn_xml.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 loc_state_e {
  INITIAL = 0,
  REPORT,
  LOCATION
};

typedef struct loc_context_t {
  /* pool to allocate memory from */
  apr_pool_t *pool;

  /* parameters set by our caller */
  const char *path;
  const apr_array_header_t *location_revisions;
  svn_revnum_t peg_revision;

  /* Returned location hash */
  apr_hash_t *paths;

} loc_context_t;

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

  { REPORT, S_, "location", LOCATION,
    FALSE, { "?rev", "?path", NULL }, TRUE },

  { 0 }
};


/* Conforms to svn_ra_serf__xml_closed_t  */
static svn_error_t *
getloc_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)
{
  loc_context_t *loc_ctx = baton;
  const char *revstr;
  const char *path;

  SVN_ERR_ASSERT(leaving_state == LOCATION);

  revstr = svn_hash_gets(attrs, "rev");
  path = svn_hash_gets(attrs, "path");
  if (revstr != NULL && path != NULL)
    {
      svn_revnum_t rev = SVN_STR_TO_REV(revstr);
      apr_hash_set(loc_ctx->paths,
                   apr_pmemdup(loc_ctx->pool, &rev, sizeof(rev)), sizeof(rev),
                   apr_pstrdup(loc_ctx->pool, path));
    }

  return SVN_NO_ERROR;
}


/* Implements svn_ra_serf__request_body_delegate_t */
static svn_error_t *
create_get_locations_body(serf_bucket_t **body_bkt,
                          void *baton,
                          serf_bucket_alloc_t *alloc,
                          apr_pool_t *pool)
{
  serf_bucket_t *buckets;
  loc_context_t *loc_ctx = baton;
  int i;

  buckets = serf_bucket_aggregate_create(alloc);

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

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

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

  for (i = 0; i < loc_ctx->location_revisions->nelts; i++)
    {
      svn_revnum_t rev = APR_ARRAY_IDX(loc_ctx->location_revisions, i, svn_revnum_t);
      svn_ra_serf__add_tag_buckets(buckets,
                                   "S:location-revision", apr_ltoa(pool, rev),
                                   alloc);
    }

  svn_ra_serf__add_close_tag_buckets(buckets, alloc,
                                     "S:get-locations");