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/*
* getlocationsegments.c : entry point for get_location_segments
* RA functions 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_hash.h"
#include "svn_pools.h"
#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"
typedef struct gls_context_t {
/* parameters set by our caller */
svn_revnum_t peg_revision;
svn_revnum_t start_rev;
svn_revnum_t end_rev;
const char *path;
/* location segment callback function/baton */
svn_location_segment_receiver_t receiver;
void *receiver_baton;
} gls_context_t;
enum {
INITIAL = 0,
REPORT,
SEGMENT
};
#define D_ "DAV:"
#define S_ SVN_XML_NAMESPACE
static const svn_ra_serf__xml_transition_t gls_ttable[] = {
{ INITIAL, S_, "get-location-segments-report", REPORT,
FALSE, { NULL }, FALSE },
{ REPORT, S_, "location-segment", SEGMENT,
FALSE, { "?path", "range-start", "range-end", NULL }, TRUE },
{ 0 }
};
/* Conforms to svn_ra_serf__xml_closed_t */
static svn_error_t *
gls_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)
{
gls_context_t *gls_ctx = baton;
const char *path;
const char *start_str;
const char *end_str;
svn_location_segment_t segment;
SVN_ERR_ASSERT(leaving_state == SEGMENT);
path = svn_hash_gets(attrs, "path");
start_str = svn_hash_gets(attrs, "range-start");
end_str = svn_hash_gets(attrs, "range-end");
/* The transition table said these must exist. */
SVN_ERR_ASSERT(start_str && end_str);
segment.path = path; /* may be NULL */
segment.range_start = SVN_STR_TO_REV(start_str);
segment.range_end = SVN_STR_TO_REV(end_str);
SVN_ERR(gls_ctx->receiver(&segment, gls_ctx->receiver_baton, scratch_pool));
return SVN_NO_ERROR;
}
/* Implements svn_ra_serf__request_body_delegate_t */
static svn_error_t *
create_gls_body(serf_bucket_t **body_bkt,
void *baton,
serf_bucket_alloc_t *alloc,
apr_pool_t *pool)
{
serf_bucket_t *buckets;
gls_context_t *gls_ctx = baton;
buckets = serf_bucket_aggregate_create(alloc);
svn_ra_serf__add_open_tag_buckets(buckets, alloc,
"S:get-location-segments",
"xmlns:S", SVN_XML_NAMESPACE,
NULL);
svn_ra_serf__add_tag_buckets(buckets,
"S:path", gls_ctx->path,
alloc);
svn_ra_serf__add_tag_buckets(buckets,
"S:peg-revision",
apr_ltoa(pool, gls_ctx->peg_revision),
alloc);
svn_ra_serf__add_tag_buckets(buckets,
"S:start-revision",
apr_ltoa(pool, gls_ctx->start_rev),
alloc);
svn_ra_serf__add_tag_buckets(buckets,
"S:end-revision",
apr_ltoa(pool, gls_ctx->end_rev),
alloc);
svn_ra_serf__add_close_tag_buckets(buckets, alloc,
"S:get-location-segments");
*body_bkt = buckets;
return SVN_NO_ERROR;
}
svn_error_t *
svn_ra_serf__get_location_segments(svn_ra_session_t *ra_session,
const char *path,
svn_revnum_t peg_revision,
svn_revnum_t start_rev,
svn_revnum_t end_rev,
svn_location_segment_receiver_t receiver,
void *receiver_baton,
apr_pool_t *pool)
{
gls_context_t *gls_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 *req_url;
svn_error_t *err;
gls_ctx = apr_pcalloc(pool, sizeof(*gls_ctx));
gls_ctx->path = path;
gls_ctx->peg_revision = peg_revision;
gls_ctx->start_rev = start_rev;
gls_ctx->end_rev = end_rev;
gls_ctx->receiver = receiver;
gls_ctx->receiver_baton = receiver_baton;
SVN_ERR(svn_ra_serf__get_stable_url(&req_url, NULL /* latest_revnum */,
session, NULL /* conn */,
NULL /* url */, peg_revision,
pool, pool));
xmlctx = svn_ra_serf__xml_context_create(gls_ttable,
NULL, gls_closed, NULL,
gls_ctx,
pool);
handler = svn_ra_serf__create_expat_handler(xmlctx, pool);
handler->method = "REPORT";
handler->path = req_url;
handler->body_delegate = create_gls_body;
handler->body_delegate_baton = gls_ctx;
handler->body_type = "text/xml";
handler->conn = session->conns[0];
handler->session = session;
err = svn_ra_serf__context_run_one(handler, pool);
err = svn_error_compose_create(
svn_ra_serf__error_on_status(handler->sline,
handler->path,
handler->location),
err);
if (err && (err->apr_err == SVN_ERR_UNSUPPORTED_FEATURE))
return svn_error_create(SVN_ERR_RA_NOT_IMPLEMENTED, err, NULL);
return svn_error_trace(err);
}
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