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authorPeter Wemm <peter@FreeBSD.org>2013-06-18 02:07:41 +0000
committerPeter Wemm <peter@FreeBSD.org>2013-06-18 02:07:41 +0000
commit32547653cc5376642e1231fb644db99933ac8db4 (patch)
tree135691142dc0e75a5e5d97b5074d03436435b8e0 /subversion/libsvn_ra_serf/getdate.c
Diffstat (limited to 'subversion/libsvn_ra_serf/getdate.c')
-rw-r--r--subversion/libsvn_ra_serf/getdate.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/subversion/libsvn_ra_serf/getdate.c b/subversion/libsvn_ra_serf/getdate.c
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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 = 0,
+ 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;
+
+ SVN_ERR_ASSERT(leaving_state == VERSION_NAME);
+ SVN_ERR_ASSERT(cdata != NULL);
+
+ *date_ctx->revision = SVN_STR_TO_REV(cdata->data);
+
+ 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)
+{
+ 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:",
+ 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, NULL, pool));
+
+ xmlctx = svn_ra_serf__xml_context_create(date_ttable,
+ NULL, date_closed, NULL,
+ date_ctx,
+ pool);
+ handler = svn_ra_serf__create_expat_handler(xmlctx, pool);
+
+ handler->method = "REPORT";
+ handler->path = report_target;
+ handler->body_type = "text/xml";
+ handler->conn = session->conns[0];
+ handler->session = session;
+
+ handler->body_delegate = create_getdate_body;
+ handler->body_delegate_baton = date_ctx;
+
+ *date_ctx->revision = SVN_INVALID_REVNUM;
+
+ /* ### use svn_ra_serf__error_on_status() ? */
+
+ return svn_error_trace(svn_ra_serf__context_run_one(handler, pool));
+}