1 /*
2 * mergeinfo.c : entry point for mergeinfo RA functions for ra_serf
3 *
4 * ====================================================================
5 * Licensed to the Apache Software Foundation (ASF) under one
6 * or more contributor license agreements. See the NOTICE file
7 * distributed with this work for additional information
8 * regarding copyright ownership. The ASF licenses this file
9 * to you under the Apache License, Version 2.0 (the
10 * "License"); you may not use this file except in compliance
11 * with the License. You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing,
16 * software distributed under the License is distributed on an
17 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
18 * KIND, either express or implied. See the License for the
19 * specific language governing permissions and limitations
20 * under the License.
21 * ====================================================================
22 */
23
24 #include <apr_tables.h>
25 #include <apr_xml.h>
26
27 #include "svn_hash.h"
28 #include "svn_mergeinfo.h"
29 #include "svn_path.h"
30 #include "svn_ra.h"
31 #include "svn_string.h"
32 #include "svn_xml.h"
33
34 #include "private/svn_dav_protocol.h"
35 #include "../libsvn_ra/ra_loader.h"
36 #include "svn_private_config.h"
37 #include "ra_serf.h"
38
39
40
41
42 /* The current state of our XML parsing. */
43 typedef enum mergeinfo_state_e {
44 INITIAL = XML_STATE_INITIAL,
45 MERGEINFO_REPORT,
46 MERGEINFO_ITEM,
47 MERGEINFO_PATH,
48 MERGEINFO_INFO
49 } mergeinfo_state_e;
50
51 /* Baton for accumulating mergeinfo. RESULT_CATALOG stores the final
52 mergeinfo catalog result we are going to hand back to the caller of
53 get_mergeinfo. */
54 typedef struct mergeinfo_context_t {
55 apr_pool_t *pool;
56 svn_mergeinfo_t result_catalog;
57 const apr_array_header_t *paths;
58 svn_revnum_t revision;
59 svn_mergeinfo_inheritance_t inherit;
60 svn_boolean_t include_descendants;
61 } mergeinfo_context_t;
62
63
64 #define D_ "DAV:"
65 #define S_ SVN_XML_NAMESPACE
66 static const svn_ra_serf__xml_transition_t mergeinfo_ttable[] = {
67 { INITIAL, S_, SVN_DAV__MERGEINFO_REPORT, MERGEINFO_REPORT,
68 FALSE, { NULL }, FALSE },
69
70 { MERGEINFO_REPORT, S_, SVN_DAV__MERGEINFO_ITEM, MERGEINFO_ITEM,
71 FALSE, { NULL }, TRUE },
72
73 { MERGEINFO_ITEM, S_, SVN_DAV__MERGEINFO_PATH, MERGEINFO_PATH,
74 TRUE, { NULL }, TRUE },
75
76 { MERGEINFO_ITEM, S_, SVN_DAV__MERGEINFO_INFO, MERGEINFO_INFO,
77 TRUE, { NULL }, TRUE },
78
79 { 0 }
80 };
81
82
83 /* Conforms to svn_ra_serf__xml_closed_t */
84 static svn_error_t *
mergeinfo_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)85 mergeinfo_closed(svn_ra_serf__xml_estate_t *xes,
86 void *baton,
87 int leaving_state,
88 const svn_string_t *cdata,
89 apr_hash_t *attrs,
90 apr_pool_t *scratch_pool)
91 {
92 mergeinfo_context_t *mergeinfo_ctx = baton;
93
94 if (leaving_state == MERGEINFO_ITEM)
95 {
96 /* Placed here from the child elements. */
97 const char *path = svn_hash_gets(attrs, "path");
98 const char *info = svn_hash_gets(attrs, "info");
99
100 if (path != NULL && info != NULL)
101 {
102 svn_mergeinfo_t path_mergeinfo;
103
104 /* Correct for naughty servers that send "relative" paths
105 with leading slashes! */
106 if (path[0] == '/')
107 ++path;
108
109 SVN_ERR(svn_mergeinfo_parse(&path_mergeinfo, info,
110 mergeinfo_ctx->pool));
111
112 svn_hash_sets(mergeinfo_ctx->result_catalog,
113 apr_pstrdup(mergeinfo_ctx->pool, path),
114 path_mergeinfo);
115 }
116 }
117 else
118 {
119 SVN_ERR_ASSERT(leaving_state == MERGEINFO_PATH
120 || leaving_state == MERGEINFO_INFO);
121
122 /* Stash the value onto the parent MERGEINFO_ITEM. */
123 svn_ra_serf__xml_note(xes, MERGEINFO_ITEM,
124 leaving_state == MERGEINFO_PATH
125 ? "path"
126 : "info",
127 cdata->data);
128 }
129
130 return SVN_NO_ERROR;
131 }
132
133 /* Implements svn_ra_serf__request_body_delegate_t */
134 static svn_error_t *
create_mergeinfo_body(serf_bucket_t ** bkt,void * baton,serf_bucket_alloc_t * alloc,apr_pool_t * pool,apr_pool_t * scratch_pool)135 create_mergeinfo_body(serf_bucket_t **bkt,
136 void *baton,
137 serf_bucket_alloc_t *alloc,
138 apr_pool_t *pool /* request pool */,
139 apr_pool_t *scratch_pool)
140 {
141 mergeinfo_context_t *mergeinfo_ctx = baton;
142 serf_bucket_t *body_bkt;
143
144 body_bkt = serf_bucket_aggregate_create(alloc);
145
146 svn_ra_serf__add_open_tag_buckets(body_bkt, alloc,
147 "S:" SVN_DAV__MERGEINFO_REPORT,
148 "xmlns:S", SVN_XML_NAMESPACE,
149 SVN_VA_NULL);
150
151 svn_ra_serf__add_tag_buckets(body_bkt,
152 "S:" SVN_DAV__REVISION,
153 apr_ltoa(pool, mergeinfo_ctx->revision),
154 alloc);
155 svn_ra_serf__add_tag_buckets(body_bkt, "S:" SVN_DAV__INHERIT,
156 svn_inheritance_to_word(mergeinfo_ctx->inherit),
157 alloc);
158 if (mergeinfo_ctx->include_descendants)
159 {
160 svn_ra_serf__add_tag_buckets(body_bkt, "S:"
161 SVN_DAV__INCLUDE_DESCENDANTS,
162 "yes", alloc);
163 }
164
165 if (mergeinfo_ctx->paths)
166 {
167 int i;
168
169 for (i = 0; i < mergeinfo_ctx->paths->nelts; i++)
170 {
171 const char *this_path = APR_ARRAY_IDX(mergeinfo_ctx->paths,
172 i, const char *);
173
174 svn_ra_serf__add_tag_buckets(body_bkt, "S:" SVN_DAV__PATH,
175 this_path, alloc);
176 }
177 }
178
179 svn_ra_serf__add_close_tag_buckets(body_bkt, alloc,
180 "S:" SVN_DAV__MERGEINFO_REPORT);
181
182 *bkt = body_bkt;
183 return SVN_NO_ERROR;
184 }
185
186 svn_error_t *
svn_ra_serf__get_mergeinfo(svn_ra_session_t * ra_session,svn_mergeinfo_catalog_t * catalog,const apr_array_header_t * paths,svn_revnum_t revision,svn_mergeinfo_inheritance_t inherit,svn_boolean_t include_descendants,apr_pool_t * pool)187 svn_ra_serf__get_mergeinfo(svn_ra_session_t *ra_session,
188 svn_mergeinfo_catalog_t *catalog,
189 const apr_array_header_t *paths,
190 svn_revnum_t revision,
191 svn_mergeinfo_inheritance_t inherit,
192 svn_boolean_t include_descendants,
193 apr_pool_t *pool)
194 {
195 mergeinfo_context_t *mergeinfo_ctx;
196 svn_ra_serf__session_t *session = ra_session->priv;
197 svn_ra_serf__handler_t *handler;
198 svn_ra_serf__xml_context_t *xmlctx;
199 const char *path;
200
201 *catalog = NULL;
202
203 SVN_ERR(svn_ra_serf__get_stable_url(&path, NULL /* latest_revnum */,
204 session,
205 NULL /* url */, revision,
206 pool, pool));
207
208 mergeinfo_ctx = apr_pcalloc(pool, sizeof(*mergeinfo_ctx));
209 mergeinfo_ctx->pool = pool;
210 mergeinfo_ctx->result_catalog = apr_hash_make(pool);
211 mergeinfo_ctx->paths = paths;
212 mergeinfo_ctx->revision = revision;
213 mergeinfo_ctx->inherit = inherit;
214 mergeinfo_ctx->include_descendants = include_descendants;
215
216 xmlctx = svn_ra_serf__xml_context_create(mergeinfo_ttable,
217 NULL, mergeinfo_closed, NULL,
218 mergeinfo_ctx,
219 pool);
220 handler = svn_ra_serf__create_expat_handler(session, xmlctx, NULL, pool);
221
222 handler->method = "REPORT";
223 handler->path = path;
224
225 handler->body_delegate = create_mergeinfo_body;
226 handler->body_delegate_baton = mergeinfo_ctx;
227 handler->body_type = "text/xml";
228
229 SVN_ERR(svn_ra_serf__context_run_one(handler, pool));
230
231 if (handler->sline.code != 200)
232 SVN_ERR(svn_ra_serf__unexpected_status(handler));
233
234 if (apr_hash_count(mergeinfo_ctx->result_catalog))
235 *catalog = mergeinfo_ctx->result_catalog;
236
237 return SVN_NO_ERROR;
238 }
239