1 /*
2 * serf.c : entry point 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
25
26 #define APR_WANT_STRFUNC
27 #include <apr_want.h>
28
29 #include <apr_uri.h>
30 #include <serf.h>
31
32 #include "svn_pools.h"
33 #include "svn_ra.h"
34 #include "svn_dav.h"
35 #include "svn_xml.h"
36 #include "../libsvn_ra/ra_loader.h"
37 #include "svn_config.h"
38 #include "svn_delta.h"
39 #include "svn_dirent_uri.h"
40 #include "svn_hash.h"
41 #include "svn_path.h"
42 #include "svn_props.h"
43 #include "svn_time.h"
44 #include "svn_version.h"
45
46 #include "private/svn_dav_protocol.h"
47 #include "private/svn_dep_compat.h"
48 #include "private/svn_fspath.h"
49 #include "private/svn_subr_private.h"
50 #include "svn_private_config.h"
51
52 #include "ra_serf.h"
53
54
55 /* Implements svn_ra__vtable_t.get_version(). */
56 static const svn_version_t *
ra_serf_version(void)57 ra_serf_version(void)
58 {
59 SVN_VERSION_BODY;
60 }
61
62 #define RA_SERF_DESCRIPTION \
63 N_("Module for accessing a repository via WebDAV protocol using serf.")
64
65 #define RA_SERF_DESCRIPTION_VER \
66 N_("Module for accessing a repository via WebDAV protocol using serf.\n" \
67 " - using serf %d.%d.%d (compiled with %d.%d.%d)")
68
69 /* Implements svn_ra__vtable_t.get_description(). */
70 static const char *
ra_serf_get_description(apr_pool_t * pool)71 ra_serf_get_description(apr_pool_t *pool)
72 {
73 int major, minor, patch;
74
75 serf_lib_version(&major, &minor, &patch);
76 return apr_psprintf(pool, _(RA_SERF_DESCRIPTION_VER),
77 major, minor, patch,
78 SERF_MAJOR_VERSION,
79 SERF_MINOR_VERSION,
80 SERF_PATCH_VERSION
81 );
82 }
83
84 /* Implements svn_ra__vtable_t.get_schemes(). */
85 static const char * const *
ra_serf_get_schemes(apr_pool_t * pool)86 ra_serf_get_schemes(apr_pool_t *pool)
87 {
88 static const char *serf_ssl[] = { "http", "https", NULL };
89 #if 0
90 /* ### Temporary: to shut up a warning. */
91 static const char *serf_no_ssl[] = { "http", NULL };
92 #endif
93
94 /* TODO: Runtime detection. */
95 return serf_ssl;
96 }
97
98 /* Load the setting http-auth-types from the global or server specific
99 section, parse its value and set the types of authentication we should
100 accept from the server. */
101 static svn_error_t *
load_http_auth_types(apr_pool_t * pool,svn_config_t * config,const char * server_group,int * authn_types)102 load_http_auth_types(apr_pool_t *pool, svn_config_t *config,
103 const char *server_group,
104 int *authn_types)
105 {
106 const char *http_auth_types = NULL;
107 *authn_types = SERF_AUTHN_NONE;
108
109 svn_config_get(config, &http_auth_types, SVN_CONFIG_SECTION_GLOBAL,
110 SVN_CONFIG_OPTION_HTTP_AUTH_TYPES, NULL);
111
112 if (server_group)
113 {
114 svn_config_get(config, &http_auth_types, server_group,
115 SVN_CONFIG_OPTION_HTTP_AUTH_TYPES, http_auth_types);
116 }
117
118 if (http_auth_types)
119 {
120 char *token;
121 char *auth_types_list = apr_palloc(pool, strlen(http_auth_types) + 1);
122 apr_collapse_spaces(auth_types_list, http_auth_types);
123 while ((token = svn_cstring_tokenize(";", &auth_types_list)) != NULL)
124 {
125 if (svn_cstring_casecmp("basic", token) == 0)
126 *authn_types |= SERF_AUTHN_BASIC;
127 else if (svn_cstring_casecmp("digest", token) == 0)
128 *authn_types |= SERF_AUTHN_DIGEST;
129 else if (svn_cstring_casecmp("ntlm", token) == 0)
130 *authn_types |= SERF_AUTHN_NTLM;
131 else if (svn_cstring_casecmp("negotiate", token) == 0)
132 *authn_types |= SERF_AUTHN_NEGOTIATE;
133 else
134 return svn_error_createf(SVN_ERR_BAD_CONFIG_VALUE, NULL,
135 _("Invalid config: unknown %s "
136 "'%s'"),
137 SVN_CONFIG_OPTION_HTTP_AUTH_TYPES, token);
138 }
139 }
140 else
141 {
142 /* Nothing specified by the user, so accept all types. */
143 *authn_types = SERF_AUTHN_ALL;
144 }
145
146 return SVN_NO_ERROR;
147 }
148
149 /* Default HTTP timeout (in seconds); overridden by the 'http-timeout'
150 runtime configuration variable. */
151 #define DEFAULT_HTTP_TIMEOUT 600
152
153 static svn_error_t *
load_config(svn_ra_serf__session_t * session,apr_hash_t * config_hash,apr_pool_t * result_pool,apr_pool_t * scratch_pool)154 load_config(svn_ra_serf__session_t *session,
155 apr_hash_t *config_hash,
156 apr_pool_t *result_pool,
157 apr_pool_t *scratch_pool)
158 {
159 svn_config_t *config, *config_client;
160 const char *server_group;
161 const char *proxy_host = NULL;
162 const char *port_str = NULL;
163 const char *timeout_str = NULL;
164 const char *exceptions;
165 apr_port_t proxy_port;
166 svn_tristate_t chunked_requests;
167 #if SERF_VERSION_AT_LEAST(1, 4, 0) && !defined(SVN_SERF_NO_LOGGING)
168 apr_int64_t log_components;
169 apr_int64_t log_level;
170 #endif
171
172 if (config_hash)
173 {
174 config = svn_hash_gets(config_hash, SVN_CONFIG_CATEGORY_SERVERS);
175 config_client = svn_hash_gets(config_hash, SVN_CONFIG_CATEGORY_CONFIG);
176 }
177 else
178 {
179 config = NULL;
180 config_client = NULL;
181 }
182
183 SVN_ERR(svn_config_get_tristate(config, &session->using_compression,
184 SVN_CONFIG_SECTION_GLOBAL,
185 SVN_CONFIG_OPTION_HTTP_COMPRESSION,
186 "auto", svn_tristate_unknown));
187 svn_config_get(config, &timeout_str, SVN_CONFIG_SECTION_GLOBAL,
188 SVN_CONFIG_OPTION_HTTP_TIMEOUT, NULL);
189
190 if (session->auth_baton)
191 {
192 if (config_client)
193 {
194 svn_auth_set_parameter(session->auth_baton,
195 SVN_AUTH_PARAM_CONFIG_CATEGORY_CONFIG,
196 config_client);
197 }
198 if (config)
199 {
200 svn_auth_set_parameter(session->auth_baton,
201 SVN_AUTH_PARAM_CONFIG_CATEGORY_SERVERS,
202 config);
203 }
204 }
205
206 /* Use the default proxy-specific settings if and only if
207 "http-proxy-exceptions" is not set to exclude this host. */
208 svn_config_get(config, &exceptions, SVN_CONFIG_SECTION_GLOBAL,
209 SVN_CONFIG_OPTION_HTTP_PROXY_EXCEPTIONS, "");
210 if (! svn_cstring_match_glob_list(session->session_url.hostname,
211 svn_cstring_split(exceptions, ",",
212 TRUE, scratch_pool)))
213 {
214 svn_config_get(config, &proxy_host, SVN_CONFIG_SECTION_GLOBAL,
215 SVN_CONFIG_OPTION_HTTP_PROXY_HOST, NULL);
216 svn_config_get(config, &port_str, SVN_CONFIG_SECTION_GLOBAL,
217 SVN_CONFIG_OPTION_HTTP_PROXY_PORT, NULL);
218 svn_config_get(config, &session->proxy_username,
219 SVN_CONFIG_SECTION_GLOBAL,
220 SVN_CONFIG_OPTION_HTTP_PROXY_USERNAME, NULL);
221 svn_config_get(config, &session->proxy_password,
222 SVN_CONFIG_SECTION_GLOBAL,
223 SVN_CONFIG_OPTION_HTTP_PROXY_PASSWORD, NULL);
224 }
225
226 /* Load the global ssl settings, if set. */
227 SVN_ERR(svn_config_get_bool(config, &session->trust_default_ca,
228 SVN_CONFIG_SECTION_GLOBAL,
229 SVN_CONFIG_OPTION_SSL_TRUST_DEFAULT_CA,
230 TRUE));
231 svn_config_get(config, &session->ssl_authorities, SVN_CONFIG_SECTION_GLOBAL,
232 SVN_CONFIG_OPTION_SSL_AUTHORITY_FILES, NULL);
233
234 /* If set, read the flag that tells us to do bulk updates or not. Defaults
235 to skelta updates. */
236 SVN_ERR(svn_config_get_tristate(config, &session->bulk_updates,
237 SVN_CONFIG_SECTION_GLOBAL,
238 SVN_CONFIG_OPTION_HTTP_BULK_UPDATES,
239 "auto",
240 svn_tristate_unknown));
241
242 /* Load the maximum number of parallel session connections. */
243 SVN_ERR(svn_config_get_int64(config, &session->max_connections,
244 SVN_CONFIG_SECTION_GLOBAL,
245 SVN_CONFIG_OPTION_HTTP_MAX_CONNECTIONS,
246 SVN_CONFIG_DEFAULT_OPTION_HTTP_MAX_CONNECTIONS));
247
248 /* Should we use chunked transfer encoding. */
249 SVN_ERR(svn_config_get_tristate(config, &chunked_requests,
250 SVN_CONFIG_SECTION_GLOBAL,
251 SVN_CONFIG_OPTION_HTTP_CHUNKED_REQUESTS,
252 "auto", svn_tristate_unknown));
253
254 #if SERF_VERSION_AT_LEAST(1, 4, 0) && !defined(SVN_SERF_NO_LOGGING)
255 SVN_ERR(svn_config_get_int64(config, &log_components,
256 SVN_CONFIG_SECTION_GLOBAL,
257 SVN_CONFIG_OPTION_SERF_LOG_COMPONENTS,
258 SERF_LOGCOMP_NONE));
259 SVN_ERR(svn_config_get_int64(config, &log_level,
260 SVN_CONFIG_SECTION_GLOBAL,
261 SVN_CONFIG_OPTION_SERF_LOG_LEVEL,
262 SERF_LOG_INFO));
263 #endif
264
265 server_group = svn_auth_get_parameter(session->auth_baton,
266 SVN_AUTH_PARAM_SERVER_GROUP);
267
268 if (server_group)
269 {
270 SVN_ERR(svn_config_get_tristate(config, &session->using_compression,
271 server_group,
272 SVN_CONFIG_OPTION_HTTP_COMPRESSION,
273 "auto", session->using_compression));
274 svn_config_get(config, &timeout_str, server_group,
275 SVN_CONFIG_OPTION_HTTP_TIMEOUT, timeout_str);
276
277 /* Load the group proxy server settings, overriding global
278 settings. We intentionally ignore 'http-proxy-exceptions'
279 here because, well, if this site was an exception, why is
280 there a per-server proxy configuration for it? */
281 svn_config_get(config, &proxy_host, server_group,
282 SVN_CONFIG_OPTION_HTTP_PROXY_HOST, proxy_host);
283 svn_config_get(config, &port_str, server_group,
284 SVN_CONFIG_OPTION_HTTP_PROXY_PORT, port_str);
285 svn_config_get(config, &session->proxy_username, server_group,
286 SVN_CONFIG_OPTION_HTTP_PROXY_USERNAME,
287 session->proxy_username);
288 svn_config_get(config, &session->proxy_password, server_group,
289 SVN_CONFIG_OPTION_HTTP_PROXY_PASSWORD,
290 session->proxy_password);
291
292 /* Load the group ssl settings. */
293 SVN_ERR(svn_config_get_bool(config, &session->trust_default_ca,
294 server_group,
295 SVN_CONFIG_OPTION_SSL_TRUST_DEFAULT_CA,
296 session->trust_default_ca));
297 svn_config_get(config, &session->ssl_authorities, server_group,
298 SVN_CONFIG_OPTION_SSL_AUTHORITY_FILES,
299 session->ssl_authorities);
300
301 /* Load the group bulk updates flag. */
302 SVN_ERR(svn_config_get_tristate(config, &session->bulk_updates,
303 server_group,
304 SVN_CONFIG_OPTION_HTTP_BULK_UPDATES,
305 "auto",
306 session->bulk_updates));
307
308 /* Load the maximum number of parallel session connections,
309 overriding global values. */
310 SVN_ERR(svn_config_get_int64(config, &session->max_connections,
311 server_group,
312 SVN_CONFIG_OPTION_HTTP_MAX_CONNECTIONS,
313 session->max_connections));
314
315 /* Should we use chunked transfer encoding. */
316 SVN_ERR(svn_config_get_tristate(config, &chunked_requests,
317 server_group,
318 SVN_CONFIG_OPTION_HTTP_CHUNKED_REQUESTS,
319 "auto", chunked_requests));
320
321 #if SERF_VERSION_AT_LEAST(1, 4, 0) && !defined(SVN_SERF_NO_LOGGING)
322 SVN_ERR(svn_config_get_int64(config, &log_components,
323 server_group,
324 SVN_CONFIG_OPTION_SERF_LOG_COMPONENTS,
325 log_components));
326 SVN_ERR(svn_config_get_int64(config, &log_level,
327 server_group,
328 SVN_CONFIG_OPTION_SERF_LOG_LEVEL,
329 log_level));
330 #endif
331 }
332
333 #if SERF_VERSION_AT_LEAST(1, 4, 0) && !defined(SVN_SERF_NO_LOGGING)
334 if (log_components != SERF_LOGCOMP_NONE)
335 {
336 serf_log_output_t *output;
337 apr_status_t status;
338
339 status = serf_logging_create_stream_output(&output,
340 session->context,
341 (apr_uint32_t)log_level,
342 (apr_uint32_t)log_components,
343 SERF_LOG_DEFAULT_LAYOUT,
344 stderr,
345 result_pool);
346
347 if (!status)
348 serf_logging_add_output(session->context, output);
349 }
350 #endif
351
352 /* Don't allow the http-max-connections value to be larger than our
353 compiled-in limit, or to be too small to operate. Broken
354 functionality and angry administrators are equally undesirable. */
355 if (session->max_connections > SVN_RA_SERF__MAX_CONNECTIONS_LIMIT)
356 session->max_connections = SVN_RA_SERF__MAX_CONNECTIONS_LIMIT;
357 if (session->max_connections < 2)
358 session->max_connections = 2;
359
360 /* Parse the connection timeout value, if any. */
361 session->timeout = apr_time_from_sec(DEFAULT_HTTP_TIMEOUT);
362 if (timeout_str)
363 {
364 apr_int64_t timeout;
365 svn_error_t *err;
366
367 err = svn_cstring_strtoi64(&timeout, timeout_str, 0, APR_INT64_MAX, 10);
368 if (err)
369 return svn_error_createf(SVN_ERR_BAD_CONFIG_VALUE, err,
370 _("invalid config: bad value for '%s' option"),
371 SVN_CONFIG_OPTION_HTTP_TIMEOUT);
372 session->timeout = apr_time_from_sec(timeout);
373 }
374
375 /* Convert the proxy port value, if any. */
376 if (port_str)
377 {
378 char *endstr;
379 const long int port = strtol(port_str, &endstr, 10);
380
381 if (*endstr)
382 return svn_error_create(SVN_ERR_RA_ILLEGAL_URL, NULL,
383 _("Invalid URL: illegal character in proxy "
384 "port number"));
385 if (port < 0)
386 return svn_error_create(SVN_ERR_RA_ILLEGAL_URL, NULL,
387 _("Invalid URL: negative proxy port number"));
388 if (port > 65535)
389 return svn_error_create(SVN_ERR_RA_ILLEGAL_URL, NULL,
390 _("Invalid URL: proxy port number greater "
391 "than maximum TCP port number 65535"));
392 proxy_port = (apr_port_t) port;
393 }
394 else
395 {
396 proxy_port = 80;
397 }
398
399 if (proxy_host)
400 {
401 apr_sockaddr_t *proxy_addr;
402 apr_status_t status;
403
404 status = apr_sockaddr_info_get(&proxy_addr, proxy_host,
405 APR_UNSPEC, proxy_port, 0,
406 session->pool);
407 if (status)
408 {
409 return svn_ra_serf__wrap_err(
410 status, _("Could not resolve proxy server '%s'"),
411 proxy_host);
412 }
413 session->using_proxy = TRUE;
414 serf_config_proxy(session->context, proxy_addr);
415 }
416 else
417 {
418 session->using_proxy = FALSE;
419 }
420
421 /* Setup detect_chunking and using_chunked_requests based on
422 * the chunked_requests tristate */
423 if (chunked_requests == svn_tristate_unknown)
424 {
425 session->detect_chunking = TRUE;
426 session->using_chunked_requests = TRUE;
427 }
428 else if (chunked_requests == svn_tristate_true)
429 {
430 session->detect_chunking = FALSE;
431 session->using_chunked_requests = TRUE;
432 }
433 else /* chunked_requests == svn_tristate_false */
434 {
435 session->detect_chunking = FALSE;
436 session->using_chunked_requests = FALSE;
437 }
438
439 /* Setup authentication. */
440 SVN_ERR(load_http_auth_types(result_pool, config, server_group,
441 &session->authn_types));
442 serf_config_authn_types(session->context, session->authn_types);
443 serf_config_credentials_callback(session->context,
444 svn_ra_serf__credentials_callback);
445
446 return SVN_NO_ERROR;
447 }
448 #undef DEFAULT_HTTP_TIMEOUT
449
450 static void
svn_ra_serf__progress(void * progress_baton,apr_off_t bytes_read,apr_off_t bytes_written)451 svn_ra_serf__progress(void *progress_baton, apr_off_t bytes_read,
452 apr_off_t bytes_written)
453 {
454 const svn_ra_serf__session_t *serf_sess = progress_baton;
455 if (serf_sess->progress_func)
456 {
457 serf_sess->progress_func(bytes_read + bytes_written, -1,
458 serf_sess->progress_baton,
459 serf_sess->pool);
460 }
461 }
462
463 /** Our User-Agent string. */
464 static const char *
get_user_agent_string(apr_pool_t * pool)465 get_user_agent_string(apr_pool_t *pool)
466 {
467 int major, minor, patch;
468 serf_lib_version(&major, &minor, &patch);
469
470 return apr_psprintf(pool, "SVN/%s (%s) serf/%d.%d.%d",
471 SVN_VER_NUMBER, SVN_BUILD_TARGET,
472 major, minor, patch);
473 }
474
475 /* Implements svn_ra__vtable_t.open_session(). */
476 static svn_error_t *
svn_ra_serf__open(svn_ra_session_t * session,const char ** corrected_url,const char ** redirect_url,const char * session_URL,const svn_ra_callbacks2_t * callbacks,void * callback_baton,svn_auth_baton_t * auth_baton,apr_hash_t * config,apr_pool_t * result_pool,apr_pool_t * scratch_pool)477 svn_ra_serf__open(svn_ra_session_t *session,
478 const char **corrected_url,
479 const char **redirect_url,
480 const char *session_URL,
481 const svn_ra_callbacks2_t *callbacks,
482 void *callback_baton,
483 svn_auth_baton_t *auth_baton,
484 apr_hash_t *config,
485 apr_pool_t *result_pool,
486 apr_pool_t *scratch_pool)
487 {
488 apr_status_t status;
489 svn_ra_serf__session_t *serf_sess;
490 apr_uri_t url;
491 const char *client_string = NULL;
492 svn_error_t *err;
493
494 if (corrected_url)
495 *corrected_url = NULL;
496 if (redirect_url)
497 *redirect_url = NULL;
498
499 serf_sess = apr_pcalloc(result_pool, sizeof(*serf_sess));
500 serf_sess->pool = result_pool;
501 if (config)
502 SVN_ERR(svn_config_copy_config(&serf_sess->config, config, result_pool));
503 else
504 serf_sess->config = NULL;
505 serf_sess->wc_callbacks = callbacks;
506 serf_sess->wc_callback_baton = callback_baton;
507 serf_sess->auth_baton = auth_baton;
508 serf_sess->progress_func = callbacks->progress_func;
509 serf_sess->progress_baton = callbacks->progress_baton;
510 serf_sess->cancel_func = callbacks->cancel_func;
511 serf_sess->cancel_baton = callback_baton;
512
513 /* todo: reuse serf context across sessions */
514 serf_sess->context = serf_context_create(serf_sess->pool);
515
516 SVN_ERR(svn_ra_serf__blncache_create(&serf_sess->blncache,
517 serf_sess->pool));
518
519
520 SVN_ERR(svn_ra_serf__uri_parse(&url, session_URL, serf_sess->pool));
521
522 if (!url.port)
523 {
524 url.port = apr_uri_port_of_scheme(url.scheme);
525 }
526 serf_sess->session_url = url;
527 serf_sess->session_url_str = apr_pstrdup(serf_sess->pool, session_URL);
528 serf_sess->using_ssl = (svn_cstring_casecmp(url.scheme, "https") == 0);
529
530 serf_sess->supports_deadprop_count = svn_tristate_unknown;
531
532 serf_sess->capabilities = apr_hash_make(serf_sess->pool);
533
534 /* We have to assume that the server only supports HTTP/1.0. Once it's clear
535 HTTP/1.1 is supported, we can upgrade. */
536 serf_sess->http10 = TRUE;
537 serf_sess->http20 = FALSE;
538
539 /* If we switch to HTTP/1.1, then we will use chunked requests. We may disable
540 this, if we find an intervening proxy does not support chunked requests. */
541 serf_sess->using_chunked_requests = TRUE;
542
543 SVN_ERR(load_config(serf_sess, config, serf_sess->pool, scratch_pool));
544
545 serf_sess->conns[0] = apr_pcalloc(serf_sess->pool,
546 sizeof(*serf_sess->conns[0]));
547 serf_sess->conns[0]->bkt_alloc =
548 serf_bucket_allocator_create(serf_sess->pool, NULL, NULL);
549 serf_sess->conns[0]->session = serf_sess;
550 serf_sess->conns[0]->last_status_code = -1;
551
552 /* create the user agent string */
553 if (callbacks->get_client_string)
554 SVN_ERR(callbacks->get_client_string(callback_baton, &client_string,
555 scratch_pool));
556
557 if (client_string)
558 serf_sess->useragent = apr_pstrcat(result_pool,
559 get_user_agent_string(scratch_pool),
560 " ",
561 client_string, SVN_VA_NULL);
562 else
563 serf_sess->useragent = get_user_agent_string(result_pool);
564
565 /* go ahead and tell serf about the connection. */
566 status =
567 serf_connection_create2(&serf_sess->conns[0]->conn,
568 serf_sess->context,
569 url,
570 svn_ra_serf__conn_setup, serf_sess->conns[0],
571 svn_ra_serf__conn_closed, serf_sess->conns[0],
572 serf_sess->pool);
573 if (status)
574 return svn_ra_serf__wrap_err(status, NULL);
575
576 /* Set the progress callback. */
577 serf_context_set_progress_cb(serf_sess->context, svn_ra_serf__progress,
578 serf_sess);
579
580 serf_sess->num_conns = 1;
581
582 session->priv = serf_sess;
583
584 /* The following code explicitly works around a bug in serf <= r2319 / 1.3.8
585 where serf doesn't report the request as failed/cancelled when the
586 authorization request handler fails to handle the request.
587
588 As long as we allocate the request in a subpool of the serf connection
589 pool, we know that the handler is always cleaned before the connection.
590
591 Luckily our caller now passes us two pools which handle this case.
592 */
593 #if defined(SVN_DEBUG) && !SERF_VERSION_AT_LEAST(1,4,0)
594 /* Currently ensured by svn_ra_open5().
595 If failing causes segfault in basic_tests.py 48, "basic auth test" */
596 SVN_ERR_ASSERT((serf_sess->pool != scratch_pool)
597 && apr_pool_is_ancestor(serf_sess->pool, scratch_pool));
598 #endif
599
600 /* The actual latency will be determined as a part of the initial
601 OPTIONS request. */
602 serf_sess->conn_latency = -1;
603
604 err = svn_ra_serf__exchange_capabilities(serf_sess, corrected_url,
605 redirect_url,
606 result_pool, scratch_pool);
607
608 /* serf should produce a usable error code instead of APR_EGENERAL */
609 if (err && err->apr_err == APR_EGENERAL)
610 err = svn_error_createf(SVN_ERR_RA_DAV_REQUEST_FAILED, err,
611 _("Connection to '%s' failed"), session_URL);
612 SVN_ERR(err);
613
614 /* We have set up a useful connection (that doesn't indication a redirect).
615 If we've been told there is possibly a worrisome proxy in our path to the
616 server AND we switched to HTTP/1.1 (chunked requests), then probe for
617 problems in any proxy. */
618 if ((corrected_url == NULL || *corrected_url == NULL)
619 && serf_sess->detect_chunking && !serf_sess->http10)
620 SVN_ERR(svn_ra_serf__probe_proxy(serf_sess, scratch_pool));
621
622 return SVN_NO_ERROR;
623 }
624
625 /* Implements svn_ra__vtable_t.dup_session */
626 static svn_error_t *
ra_serf_dup_session(svn_ra_session_t * new_session,svn_ra_session_t * old_session,const char * new_session_url,apr_pool_t * result_pool,apr_pool_t * scratch_pool)627 ra_serf_dup_session(svn_ra_session_t *new_session,
628 svn_ra_session_t *old_session,
629 const char *new_session_url,
630 apr_pool_t *result_pool,
631 apr_pool_t *scratch_pool)
632 {
633 svn_ra_serf__session_t *old_sess = old_session->priv;
634 svn_ra_serf__session_t *new_sess;
635 apr_status_t status;
636
637 new_sess = apr_pmemdup(result_pool, old_sess, sizeof(*new_sess));
638
639 new_sess->pool = result_pool;
640
641 if (new_sess->config)
642 SVN_ERR(svn_config_copy_config(&new_sess->config, new_sess->config,
643 result_pool));
644
645 /* max_connections */
646 /* using_ssl */
647 /* using_compression */
648 /* http10 */
649 /* http20 */
650 /* using_chunked_requests */
651 /* detect_chunking */
652
653 if (new_sess->useragent)
654 new_sess->useragent = apr_pstrdup(result_pool, new_sess->useragent);
655
656 if (new_sess->vcc_url)
657 new_sess->vcc_url = apr_pstrdup(result_pool, new_sess->vcc_url);
658
659 new_sess->auth_state = NULL;
660 new_sess->auth_attempts = 0;
661
662 /* Callback functions to get info from WC */
663 /* wc_callbacks */
664 /* wc_callback_baton */
665
666 /* progress_func */
667 /* progress_baton */
668
669 /* cancel_func */
670 /* cancel_baton */
671
672 /* shim_callbacks */
673
674 new_sess->pending_error = NULL;
675
676 /* authn_types */
677
678 /* Keys and values are static */
679 if (new_sess->capabilities)
680 new_sess->capabilities = apr_hash_copy(result_pool, new_sess->capabilities);
681
682 if (new_sess->activity_collection_url)
683 {
684 new_sess->activity_collection_url
685 = apr_pstrdup(result_pool, new_sess->activity_collection_url);
686 }
687
688 /* using_proxy */
689
690 if (new_sess->proxy_username)
691 {
692 new_sess->proxy_username
693 = apr_pstrdup(result_pool, new_sess->proxy_username);
694 }
695
696 if (new_sess->proxy_password)
697 {
698 new_sess->proxy_password
699 = apr_pstrdup(result_pool, new_sess->proxy_password);
700 }
701
702 new_sess->proxy_auth_attempts = 0;
703
704 /* trust_default_ca */
705
706 if (new_sess->ssl_authorities)
707 {
708 new_sess->ssl_authorities = apr_pstrdup(result_pool,
709 new_sess->ssl_authorities);
710 }
711
712 if (new_sess->uuid)
713 new_sess->uuid = apr_pstrdup(result_pool, new_sess->uuid);
714
715 /* timeout */
716 /* supports_deadprop_count */
717
718 if (new_sess->me_resource)
719 new_sess->me_resource = apr_pstrdup(result_pool, new_sess->me_resource);
720 if (new_sess->rev_stub)
721 new_sess->rev_stub = apr_pstrdup(result_pool, new_sess->rev_stub);
722 if (new_sess->txn_stub)
723 new_sess->txn_stub = apr_pstrdup(result_pool, new_sess->txn_stub);
724 if (new_sess->txn_root_stub)
725 new_sess->txn_root_stub = apr_pstrdup(result_pool,
726 new_sess->txn_root_stub);
727 if (new_sess->vtxn_stub)
728 new_sess->vtxn_stub = apr_pstrdup(result_pool, new_sess->vtxn_stub);
729 if (new_sess->vtxn_root_stub)
730 new_sess->vtxn_root_stub = apr_pstrdup(result_pool,
731 new_sess->vtxn_root_stub);
732
733 /* Keys and values are static */
734 if (new_sess->supported_posts)
735 new_sess->supported_posts = apr_hash_copy(result_pool,
736 new_sess->supported_posts);
737
738 /* ### Can we copy this? */
739 SVN_ERR(svn_ra_serf__blncache_create(&new_sess->blncache,
740 new_sess->pool));
741
742 if (new_sess->server_allows_bulk)
743 new_sess->server_allows_bulk = apr_pstrdup(result_pool,
744 new_sess->server_allows_bulk);
745
746 if (new_sess->repos_root_str)
747 {
748 new_sess->repos_root_str = apr_pstrdup(result_pool,
749 new_sess->repos_root_str);
750 SVN_ERR(svn_ra_serf__uri_parse(&new_sess->repos_root,
751 new_sess->repos_root_str,
752 result_pool));
753 }
754
755 new_sess->session_url_str = apr_pstrdup(result_pool, new_session_url);
756
757 SVN_ERR(svn_ra_serf__uri_parse(&new_sess->session_url,
758 new_sess->session_url_str,
759 result_pool));
760
761 /* svn_boolean_t supports_inline_props */
762 /* supports_rev_rsrc_replay */
763 /* supports_svndiff1 */
764 /* supports_svndiff2 */
765 /* supports_put_result_checksum */
766 /* conn_latency */
767
768 new_sess->context = serf_context_create(result_pool);
769
770 SVN_ERR(load_config(new_sess, old_sess->config,
771 result_pool, scratch_pool));
772
773 new_sess->conns[0] = apr_pcalloc(result_pool,
774 sizeof(*new_sess->conns[0]));
775 new_sess->conns[0]->bkt_alloc =
776 serf_bucket_allocator_create(result_pool, NULL, NULL);
777 new_sess->conns[0]->session = new_sess;
778 new_sess->conns[0]->last_status_code = -1;
779
780 /* go ahead and tell serf about the connection. */
781 status =
782 serf_connection_create2(&new_sess->conns[0]->conn,
783 new_sess->context,
784 new_sess->session_url,
785 svn_ra_serf__conn_setup, new_sess->conns[0],
786 svn_ra_serf__conn_closed, new_sess->conns[0],
787 result_pool);
788 if (status)
789 return svn_ra_serf__wrap_err(status, NULL);
790
791 /* Set the progress callback. */
792 serf_context_set_progress_cb(new_sess->context, svn_ra_serf__progress,
793 new_sess);
794
795 new_sess->num_conns = 1;
796 new_sess->cur_conn = 0;
797
798 new_session->priv = new_sess;
799
800 return SVN_NO_ERROR;
801 }
802
803 /* Implements svn_ra__vtable_t.reparent(). */
804 svn_error_t *
svn_ra_serf__reparent(svn_ra_session_t * ra_session,const char * url,apr_pool_t * pool)805 svn_ra_serf__reparent(svn_ra_session_t *ra_session,
806 const char *url,
807 apr_pool_t *pool)
808 {
809 svn_ra_serf__session_t *session = ra_session->priv;
810 apr_uri_t new_url;
811
812 /* If it's the URL we already have, wave our hands and do nothing. */
813 if (strcmp(session->session_url_str, url) == 0)
814 {
815 return SVN_NO_ERROR;
816 }
817
818 if (!session->repos_root_str)
819 {
820 const char *vcc_url;
821 SVN_ERR(svn_ra_serf__discover_vcc(&vcc_url, session, pool));
822 }
823
824 if (!svn_uri__is_ancestor(session->repos_root_str, url))
825 {
826 return svn_error_createf(
827 SVN_ERR_RA_ILLEGAL_URL, NULL,
828 _("URL '%s' is not a child of the session's repository root "
829 "URL '%s'"), url, session->repos_root_str);
830 }
831
832 SVN_ERR(svn_ra_serf__uri_parse(&new_url, url, pool));
833
834 /* ### Maybe we should use a string buffer for these strings so we
835 ### don't allocate memory in the session on every reparent? */
836 session->session_url.path = apr_pstrdup(session->pool, new_url.path);
837 session->session_url_str = apr_pstrdup(session->pool, url);
838
839 return SVN_NO_ERROR;
840 }
841
842 /* Implements svn_ra__vtable_t.get_session_url(). */
843 static svn_error_t *
svn_ra_serf__get_session_url(svn_ra_session_t * ra_session,const char ** url,apr_pool_t * pool)844 svn_ra_serf__get_session_url(svn_ra_session_t *ra_session,
845 const char **url,
846 apr_pool_t *pool)
847 {
848 svn_ra_serf__session_t *session = ra_session->priv;
849 *url = apr_pstrdup(pool, session->session_url_str);
850 return SVN_NO_ERROR;
851 }
852
853 /* Implements svn_ra__vtable_t.get_latest_revnum(). */
854 static svn_error_t *
svn_ra_serf__get_latest_revnum(svn_ra_session_t * ra_session,svn_revnum_t * latest_revnum,apr_pool_t * pool)855 svn_ra_serf__get_latest_revnum(svn_ra_session_t *ra_session,
856 svn_revnum_t *latest_revnum,
857 apr_pool_t *pool)
858 {
859 svn_ra_serf__session_t *session = ra_session->priv;
860
861 return svn_error_trace(svn_ra_serf__get_youngest_revnum(
862 latest_revnum, session, pool));
863 }
864
865 /* Implementation of svn_ra_serf__rev_proplist(). */
866 static svn_error_t *
serf__rev_proplist(svn_ra_session_t * ra_session,svn_revnum_t rev,const svn_ra_serf__dav_props_t * fetch_props,apr_hash_t ** ret_props,apr_pool_t * result_pool,apr_pool_t * scratch_pool)867 serf__rev_proplist(svn_ra_session_t *ra_session,
868 svn_revnum_t rev,
869 const svn_ra_serf__dav_props_t *fetch_props,
870 apr_hash_t **ret_props,
871 apr_pool_t *result_pool,
872 apr_pool_t *scratch_pool)
873 {
874 svn_ra_serf__session_t *session = ra_session->priv;
875 apr_hash_t *props;
876 const char *propfind_path;
877 svn_ra_serf__handler_t *handler;
878
879 if (SVN_RA_SERF__HAVE_HTTPV2_SUPPORT(session))
880 {
881 propfind_path = apr_psprintf(scratch_pool, "%s/%ld", session->rev_stub,
882 rev);
883
884 /* svn_ra_serf__retrieve_props() wants to added the revision as
885 a Label to the PROPFIND, which isn't really necessary when
886 querying a rev-stub URI. *Shrug* Probably okay to leave the
887 Label, but whatever. */
888 rev = SVN_INVALID_REVNUM;
889 }
890 else
891 {
892 /* Use the VCC as the propfind target path. */
893 SVN_ERR(svn_ra_serf__discover_vcc(&propfind_path, session,
894 scratch_pool));
895 }
896
897 props = apr_hash_make(result_pool);
898 SVN_ERR(svn_ra_serf__create_propfind_handler(&handler, session,
899 propfind_path, rev, "0",
900 fetch_props,
901 svn_ra_serf__deliver_svn_props,
902 props,
903 scratch_pool));
904
905 SVN_ERR(svn_ra_serf__context_run_one(handler, scratch_pool));
906
907 svn_ra_serf__keep_only_regular_props(props, scratch_pool);
908
909 *ret_props = props;
910
911 return SVN_NO_ERROR;
912 }
913
914 /* Implements svn_ra__vtable_t.rev_proplist(). */
915 static svn_error_t *
svn_ra_serf__rev_proplist(svn_ra_session_t * ra_session,svn_revnum_t rev,apr_hash_t ** ret_props,apr_pool_t * result_pool)916 svn_ra_serf__rev_proplist(svn_ra_session_t *ra_session,
917 svn_revnum_t rev,
918 apr_hash_t **ret_props,
919 apr_pool_t *result_pool)
920 {
921 apr_pool_t *scratch_pool = svn_pool_create(result_pool);
922 svn_error_t *err;
923
924 err = serf__rev_proplist(ra_session, rev, all_props, ret_props,
925 result_pool, scratch_pool);
926
927 svn_pool_destroy(scratch_pool);
928 return svn_error_trace(err);
929 }
930
931
932 /* Implements svn_ra__vtable_t.rev_prop(). */
933 svn_error_t *
svn_ra_serf__rev_prop(svn_ra_session_t * session,svn_revnum_t rev,const char * name,svn_string_t ** value,apr_pool_t * result_pool)934 svn_ra_serf__rev_prop(svn_ra_session_t *session,
935 svn_revnum_t rev,
936 const char *name,
937 svn_string_t **value,
938 apr_pool_t *result_pool)
939 {
940 apr_pool_t *scratch_pool = svn_pool_create(result_pool);
941 apr_hash_t *props;
942 svn_ra_serf__dav_props_t specific_props[2];
943 const svn_ra_serf__dav_props_t *fetch_props = all_props;
944
945 /* The DAV propfind doesn't allow property fetches for any property name
946 as there is no defined way to quote values. If we are just fetching a
947 "svn:property" we can safely do this. In other cases we just fetch all
948 revision properties and filter the right one out */
949 if (strncmp(name, SVN_PROP_PREFIX, sizeof(SVN_PROP_PREFIX)-1) == 0
950 && !strchr(name + sizeof(SVN_PROP_PREFIX)-1, ':'))
951 {
952 specific_props[0].xmlns = SVN_DAV_PROP_NS_SVN;
953 specific_props[0].name = name + sizeof(SVN_PROP_PREFIX)-1;
954 specific_props[1].xmlns = NULL;
955 specific_props[1].name = NULL;
956
957 fetch_props = specific_props;
958 }
959
960 SVN_ERR(serf__rev_proplist(session, rev, fetch_props, &props,
961 result_pool, scratch_pool));
962
963 *value = svn_hash_gets(props, name);
964
965 svn_pool_destroy(scratch_pool);
966
967 return SVN_NO_ERROR;
968 }
969
970 svn_error_t *
svn_ra_serf__get_repos_root(svn_ra_session_t * ra_session,const char ** url,apr_pool_t * pool)971 svn_ra_serf__get_repos_root(svn_ra_session_t *ra_session,
972 const char **url,
973 apr_pool_t *pool)
974 {
975 svn_ra_serf__session_t *session = ra_session->priv;
976
977 if (!session->repos_root_str)
978 {
979 const char *vcc_url;
980 SVN_ERR(svn_ra_serf__discover_vcc(&vcc_url, session, pool));
981 }
982
983 *url = session->repos_root_str;
984 return SVN_NO_ERROR;
985 }
986
987 /* TODO: to fetch the uuid from the repository, we need:
988 1. a path that exists in HEAD
989 2. a path that's readable
990
991 get_uuid handles the case where a path doesn't exist in HEAD and also the
992 case where the root of the repository is not readable.
993 However, it does not handle the case where we're fetching path not existing
994 in HEAD of a repository with unreadable root directory.
995
996 Implements svn_ra__vtable_t.get_uuid().
997 */
998 static svn_error_t *
svn_ra_serf__get_uuid(svn_ra_session_t * ra_session,const char ** uuid,apr_pool_t * pool)999 svn_ra_serf__get_uuid(svn_ra_session_t *ra_session,
1000 const char **uuid,
1001 apr_pool_t *pool)
1002 {
1003 svn_ra_serf__session_t *session = ra_session->priv;
1004
1005 if (!session->uuid)
1006 {
1007 const char *vcc_url;
1008
1009 /* We should never get here if we have HTTP v2 support, because
1010 any server with that support should be transmitting the
1011 UUID in the initial OPTIONS response. */
1012 SVN_ERR_ASSERT(! SVN_RA_SERF__HAVE_HTTPV2_SUPPORT(session));
1013
1014 /* We're not interested in vcc_url and relative_url, but this call also
1015 stores the repository's uuid in the session. */
1016 SVN_ERR(svn_ra_serf__discover_vcc(&vcc_url, session, pool));
1017 if (!session->uuid)
1018 {
1019 return svn_error_create(SVN_ERR_RA_DAV_RESPONSE_HEADER_BADNESS, NULL,
1020 _("The UUID property was not found on the "
1021 "resource or any of its parents"));
1022 }
1023 }
1024
1025 *uuid = session->uuid;
1026
1027 return SVN_NO_ERROR;
1028 }
1029
1030
1031 static const svn_ra__vtable_t serf_vtable = {
1032 ra_serf_version,
1033 ra_serf_get_description,
1034 ra_serf_get_schemes,
1035 svn_ra_serf__open,
1036 ra_serf_dup_session,
1037 svn_ra_serf__reparent,
1038 svn_ra_serf__get_session_url,
1039 svn_ra_serf__get_latest_revnum,
1040 svn_ra_serf__get_dated_revision,
1041 svn_ra_serf__change_rev_prop,
1042 svn_ra_serf__rev_proplist,
1043 svn_ra_serf__rev_prop,
1044 svn_ra_serf__get_commit_editor,
1045 svn_ra_serf__get_file,
1046 svn_ra_serf__get_dir,
1047 svn_ra_serf__get_mergeinfo,
1048 svn_ra_serf__do_update,
1049 svn_ra_serf__do_switch,
1050 svn_ra_serf__do_status,
1051 svn_ra_serf__do_diff,
1052 svn_ra_serf__get_log,
1053 svn_ra_serf__check_path,
1054 svn_ra_serf__stat,
1055 svn_ra_serf__get_uuid,
1056 svn_ra_serf__get_repos_root,
1057 svn_ra_serf__get_locations,
1058 svn_ra_serf__get_location_segments,
1059 svn_ra_serf__get_file_revs,
1060 svn_ra_serf__lock,
1061 svn_ra_serf__unlock,
1062 svn_ra_serf__get_lock,
1063 svn_ra_serf__get_locks,
1064 svn_ra_serf__replay,
1065 svn_ra_serf__has_capability,
1066 svn_ra_serf__replay_range,
1067 svn_ra_serf__get_deleted_rev,
1068 svn_ra_serf__get_inherited_props,
1069 NULL /* set_svn_ra_open */,
1070 svn_ra_serf__list,
1071 svn_ra_serf__register_editor_shim_callbacks,
1072 NULL /* commit_ev2 */,
1073 NULL /* replay_range_ev2 */
1074 };
1075
1076 svn_error_t *
svn_ra_serf__init(const svn_version_t * loader_version,const svn_ra__vtable_t ** vtable,apr_pool_t * pool)1077 svn_ra_serf__init(const svn_version_t *loader_version,
1078 const svn_ra__vtable_t **vtable,
1079 apr_pool_t *pool)
1080 {
1081 static const svn_version_checklist_t checklist[] =
1082 {
1083 { "svn_subr", svn_subr_version },
1084 { "svn_delta", svn_delta_version },
1085 { NULL, NULL }
1086 };
1087 int serf_major;
1088 int serf_minor;
1089 int serf_patch;
1090
1091 SVN_ERR(svn_ver_check_list2(ra_serf_version(), checklist, svn_ver_equal));
1092
1093 /* Simplified version check to make sure we can safely use the
1094 VTABLE parameter. The RA loader does a more exhaustive check. */
1095 if (loader_version->major != SVN_VER_MAJOR)
1096 {
1097 return svn_error_createf(
1098 SVN_ERR_VERSION_MISMATCH, NULL,
1099 _("Unsupported RA loader version (%d) for ra_serf"),
1100 loader_version->major);
1101 }
1102
1103 /* Make sure that we have loaded a compatible library: the MAJOR must
1104 match, and the minor must be at *least* what we compiled against.
1105 The patch level is simply ignored. */
1106 serf_lib_version(&serf_major, &serf_minor, &serf_patch);
1107 if (serf_major != SERF_MAJOR_VERSION
1108 || serf_minor < SERF_MINOR_VERSION)
1109 {
1110 return svn_error_createf(
1111 /* ### should return a unique error */
1112 SVN_ERR_VERSION_MISMATCH, NULL,
1113 _("ra_serf was compiled for serf %d.%d.%d but loaded "
1114 "an incompatible %d.%d.%d library"),
1115 SERF_MAJOR_VERSION, SERF_MINOR_VERSION, SERF_PATCH_VERSION,
1116 serf_major, serf_minor, serf_patch);
1117 }
1118
1119 *vtable = &serf_vtable;
1120
1121 return SVN_NO_ERROR;
1122 }
1123
1124 /* Compatibility wrapper for pre-1.2 subversions. Needed? */
1125 #define NAME "ra_serf"
1126 #define DESCRIPTION RA_SERF_DESCRIPTION
1127 #define VTBL serf_vtable
1128 #define INITFUNC svn_ra_serf__init
1129 #define COMPAT_INITFUNC svn_ra_serf_init
1130 #include "../libsvn_ra/wrapper_template.h"
1131