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/*
* getdate.c : entry point for get_dated_revision for ra_serf
*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* 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 <apr_uri.h>
#include <serf.h>
#include "svn_pools.h"
#include "svn_ra.h"
#include "svn_time.h"
#include "svn_xml.h"
#include "private/svn_dav_protocol.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 date_state_e {
INITIAL = XML_STATE_INITIAL,
REPORT,
VERSION_NAME
};
typedef struct date_context_t {
/* The time asked about. */
apr_time_t time;
/* What was the youngest revision at that time? */
svn_revnum_t *revision;
} date_context_t;
#define D_ "DAV:"
#define S_ SVN_XML_NAMESPACE
static const svn_ra_serf__xml_transition_t date_ttable[] = {
{ INITIAL, S_, "dated-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 *
date_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)
{
date_context_t *date_ctx = baton;
apr_int64_t rev;
SVN_ERR_ASSERT(leaving_state == VERSION_NAME);
SVN_ERR_ASSERT(cdata != NULL);
SVN_ERR(svn_cstring_atoi64(&rev, cdata->data));
*date_ctx->revision = (svn_revnum_t)rev;
return SVN_NO_ERROR;
}
/* Implements svn_ra_serf__request_body_delegate_t */
static svn_error_t *
create_getdate_body(serf_bucket_t **body_bkt,
void *baton,
serf_bucket_alloc_t *alloc,
apr_pool_t *pool /* request pool */,
apr_pool_t *scratch_pool)
{
serf_bucket_t *buckets;
date_context_t *date_ctx = baton;
buckets = serf_bucket_aggregate_create(alloc);
svn_ra_serf__add_open_tag_buckets(buckets, alloc, "S:dated-rev-report",
"xmlns:S", SVN_XML_NAMESPACE,
"xmlns:D", "DAV:",
SVN_VA_NULL);
svn_ra_serf__add_tag_buckets(buckets,
"D:" SVN_DAV__CREATIONDATE,
svn_time_to_cstring(date_ctx->time, pool),
alloc);
svn_ra_serf__add_close_tag_buckets(buckets, alloc, "S:dated-rev-report");
*body_bkt = buckets;
return SVN_NO_ERROR;
}
svn_error_t *
svn_ra_serf__get_dated_revision(svn_ra_session_t *ra_session,
svn_revnum_t *revision,
apr_time_t tm,
apr_pool_t *pool)
{
date_context_t *date_ctx;
svn_ra_serf__session_t *session = ra_session->priv;
svn_ra_serf__handler_t *handler;
svn_ra_serf__xml_context_t *xmlctx;
const char *report_target;
date_ctx = apr_palloc(pool, sizeof(*date_ctx));
date_ctx->time = tm;
date_ctx->revision = revision;
SVN_ERR(svn_ra_serf__report_resource(&report_target, session, pool));
xmlctx = svn_ra_serf__xml_context_create(date_ttable,
NULL, date_closed, NULL,
date_ctx,
pool);
handler = svn_ra_serf__create_expat_handler(session, xmlctx, NULL, pool);
handler->method = "REPORT";
handler->path = report_target;
handler->body_type = "text/xml";
handler->body_delegate = create_getdate_body;
handler->body_delegate_baton = date_ctx;
*date_ctx->revision = SVN_INVALID_REVNUM;
SVN_ERR(svn_ra_serf__context_run_one(handler, pool));
if (handler->sline.code != 200)
return svn_error_trace(svn_ra_serf__unexpected_status(handler));
if (!SVN_IS_VALID_REVNUM(*revision))
return svn_error_create(SVN_ERR_RA_DAV_PROPS_NOT_FOUND, NULL,
_("The REPORT response did not include "
"the requested properties"));
return SVN_NO_ERROR;
}
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