/*
* getlocks.c : entry point for get_locks 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_path.h"
#include "svn_pools.h"
#include "svn_ra.h"
#include "svn_dav.h"
#include "svn_time.h"
#include "svn_xml.h"
#include "private/svn_dav_protocol.h"
#include "private/svn_fspath.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.
*/
typedef enum lock_state_e {
NONE = 0,
REPORT,
LOCK,
PATH,
TOKEN,
OWNER,
COMMENT,
CREATION_DATE,
EXPIRATION_DATE
} lock_state_e;
typedef struct lock_info_t {
/* Temporary pool */
apr_pool_t *pool;
svn_lock_t *lock;
/* The currently collected value as we build it up */
const char *tmp;
apr_size_t tmp_len;
} lock_info_t;
typedef struct lock_context_t {
apr_pool_t *pool;
/* target and requested depth of the operation. */
const char *path;
svn_depth_t requested_depth;
/* return hash */
apr_hash_t *hash;
/* are we done? */
svn_boolean_t done;
} lock_context_t;
static lock_info_t *
push_state(svn_ra_serf__xml_parser_t *parser,
lock_context_t *lock_ctx,
lock_state_e state)
{
svn_ra_serf__xml_push_state(parser, state);
if (state == LOCK)
{
lock_info_t *info;
info = apr_pcalloc(parser->state->pool, sizeof(*info));
info->pool = lock_ctx->pool;
info->lock = svn_lock_create(lock_ctx->pool);
info->lock->path =
parser->state->private = info;
}
return parser->state->private;
}
static svn_error_t *
start_getlocks(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name,
const char **attrs)
{
lock_context_t *lock_ctx = userData;
lock_state_e state;
state = parser->state->current_state;
if (state == NONE &&
strcmp(name.name, "get-locks-report") == 0)
{
push_state(parser, lock_ctx, REPORT);
}
else if (state == REPORT &&
strcmp(name.name, "lock") == 0)
{
push_state(parser, lock_ctx, LOCK);
}
else if (state == LOCK)
{
if (strcmp(name.name, "path") == 0)
{
push_state(parser, lock_ctx, PATH);
}
else if (strcmp(name.name, "token") == 0)
{
push_state(parser, lock_ctx, TOKEN);
}
else if (strcmp(name.name, "owner") == 0)
{
push_state(parser, lock_ctx, OWNER);
}
else if (strcmp(name.name, "comment") == 0)
{
push_state(parser, lock_ctx, COMMENT);
}
else if (strcmp(name.name, SVN_DAV__CREATIONDATE) == 0)
{
push_state(parser, lock_ctx, CREATION_DATE);
}
else if (strcmp(name.name, "expirationdate") == 0)
{
push_state(parser, lock_ctx, EXPIRATION_DATE);
}
}
return SVN_NO_ERROR;
}
static svn_error_t *
end_getlocks(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name)
{
lock_context_t *lock_ctx = userData;
lock_state_e state;
lock_info_t *info;
state = parser->state->current_state;
info = parser->state->private;
if (state == REPORT &&
strcmp(name.name, "get-locks-report") == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
else if (state == LOCK &&
strcmp(name.name, "lock") == 0)
{
/* Filter out unwanted paths. Since Subversion only allows
locks on files, we can treat depth=immediates the same as
depth=files for filtering purposes. Meaning, we'll keep
this lock if:
a) its path is the very path we queried, or
b) we've asked for a fully recursive answer, or
c) we've asked for depth=files or depth=immediates, and this
lock is on an immediate child of our query path.
*/
if ((strcmp(lock_ctx->path, info->lock->path) == 0)
|| (lock_ctx->requested_depth == svn_depth_infinity))
{
apr_hash_set(lock_ctx->hash, info->lock->path,
APR_HASH_KEY_STRING, info->lock);
}
else if ((lock_ctx->requested_depth == svn_depth_files) ||
(lock_ctx->requested_depth == svn_depth_immediates))
{
const char *rel_path = svn_fspath__is_child(lock_ctx->path,
info->lock->path,
info->pool);
if (rel_path && (svn_path_component_count(rel_path) == 1))
apr_hash_set(lock_ctx->hash, info->lock->path,
APR_HASH_KEY_STRING, info->lock);
}
svn_ra_serf__xml_pop_state(parser);
}
else if (state == PATH &&
strcmp(name.name, "path") == 0)
{
info->lock->path = apr_pstrmemdup(info->pool, info->tmp, info->tmp_len);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == TOKEN &&
strcmp(name.name, "token") == 0)
{
info->lock->token = apr_pstrmemdup(info->pool, info->tmp, info->tmp_len);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == OWNER &&
strcmp(name.name, "owner") == 0)
{
info->lock->owner = apr_pstrmemdup(info->pool, info->tmp, info->tmp_len);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == COMMENT &&
strcmp(name.name, "comment") == 0)
{
info->lock->comment = apr_pstrmemdup(info->pool,
info->tmp, info->tmp_len);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == CREATION_DATE &&
strcmp(name.name, SVN_DAV__CREATIONDATE) == 0)
{
SVN_ERR(svn_time_from_cstring(&info->lock->creation_date,
info->tmp, info->pool));
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == EXPIRATION_DATE &&
strcmp(name.name, "expirationdate") == 0)
{
SVN_ERR(svn_time_from_cstring(&info->lock->expiration_date,
info->tmp, info->pool));
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
return SVN_NO_ERROR;
}
static svn_error_t *
cdata_getlocks(svn_ra_serf__xml_parser_t *parser,
void *userData,
const char *data,
apr_size_t len)
{
lock_context_t *lock_ctx = userData;
lock_state_e state;
lock_info_t *info;
UNUSED_CTX(lock_ctx);
state = parser->state->current_state;
info = parser->state->private;
switch (state)
{
case PATH:
case TOKEN:
case OWNER:
case COMMENT:
case CREATION_DATE:
case EXPIRATION_DATE:
svn_ra_serf__expand_string(&info->tmp, &info->tmp_len,
data, len, parser->state->pool);
break;
default:
break;
}
return SVN_NO_ERROR;
}
/* Implements svn_ra_serf__request_body_delegate_t */
static svn_error_t *
create_getlocks_body(serf_bucket_t **body_bkt,
void *baton,
serf_bucket_alloc_t *alloc,
apr_pool_t *pool)
{
lock_context_t *lock_ctx = baton;
serf_bucket_t *buckets;
buckets = serf_bucket_aggregate_create(alloc);
svn_ra_serf__add_open_tag_buckets(
buckets, alloc, "S:get-locks-report", "xmlns:S", SVN_XML_NAMESPACE,
"depth", svn_depth_to_word(lock_ctx->requested_depth), NULL);
svn_ra_serf__add_close_tag_buckets(buckets, alloc, "S:get-locks-report");
*body_bkt = buckets;
return SVN_NO_ERROR;
}
svn_error_t *
svn_ra_serf__get_locks(svn_ra_session_t *ra_session,
apr_hash_t **locks,
const char *path,
svn_depth_t depth,
apr_pool_t *pool)
{
lock_context_t *lock_ctx;
svn_ra_serf__session_t *session = ra_session->priv;
svn_ra_serf__handler_t *handler;
svn_ra_serf__xml_parser_t *parser_ctx;
const char *req_url, *rel_path;
int status_code;
req_url = svn_path_url_add_component2(session->session_url.path, path, pool);
SVN_ERR(svn_ra_serf__get_relative_path(&rel_path, req_url, session,
NULL, pool));
lock_ctx = apr_pcalloc(pool, sizeof(*lock_ctx));
lock_ctx->pool = pool;
lock_ctx->path = apr_pstrcat(pool, "/", rel_path, (char *)NULL);
lock_ctx->requested_depth = depth;
lock_ctx->hash = apr_hash_make(pool);
lock_ctx->done = FALSE;
handler = apr_pcalloc(pool, sizeof(*handler));
handler->method = "REPORT";
handler->path = req_url;
handler->body_type = "text/xml";
handler->conn = session->conns[0];
handler->session = session;
parser_ctx = apr_pcalloc(pool, sizeof(*parser_ctx));
parser_ctx->pool = pool;
parser_ctx->user_data = lock_ctx;
parser_ctx->start = start_getlocks;
parser_ctx->end = end_getlocks;
parser_ctx->cdata = cdata_getlocks;
parser_ctx->done = &lock_ctx->done;
parser_ctx->status_code = &status_code;
handler->body_delegate = create_getlocks_body;
handler->body_delegate_baton = lock_ctx;
handler->response_handler = svn_ra_serf__handle_xml_parser;
handler->response_baton = parser_ctx;
svn_ra_serf__request_create(handler);
SVN_ERR(svn_ra_serf__context_run_wait(&lock_ctx->done, session, pool));
*locks = lock_ctx->hash;
return SVN_NO_ERROR;
}