/*
* mergeinfo.c : entry point for mergeinfo RA functions for ra_serf
*
* ====================================================================
* Copyright (c) 2006-2007 CollabNet. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://subversion.tigris.org/license-1.html.
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
*
* This software consists of voluntary contributions made by many
* individuals. For exact contribution history, see the revision
* history and logs, available at http://subversion.tigris.org/.
* ====================================================================
*/
#include "svn_ra.h"
#include "svn_xml.h"
#include "private/svn_dav_protocol.h"
#include "../libsvn_ra/ra_loader.h"
#include "svn_private_config.h"
#include "svn_mergeinfo.h"
#include "ra_serf.h"
#include "svn_path.h"
#include "svn_string.h"
#include <apr_tables.h>
#include <apr_xml.h>
/* The current state of our XML parsing. */
typedef enum {
NONE = 0,
MERGEINFO_REPORT,
MERGEINFO_ITEM,
MERGEINFO_PATH,
MERGEINFO_INFO
} mergeinfo_state_e;
/* Baton for accumulating mergeinfo. RESULT_CATALOG stores the final
mergeinfo catalog result we are going to hand back to the caller of
get_mergeinfo. curr_path and curr_info contain the value of the
CDATA from the mergeinfo items as we get them from the server. */
typedef struct {
apr_pool_t *pool;
svn_stringbuf_t *curr_path;
svn_stringbuf_t *curr_info;
svn_mergeinfo_t result_catalog;
svn_boolean_t done;
const apr_array_header_t *paths;
svn_revnum_t revision;
svn_mergeinfo_inheritance_t inherit;
svn_boolean_t include_descendants;
} mergeinfo_context_t;
static svn_error_t *
start_element(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name,
const char **attrs)
{
mergeinfo_context_t *mergeinfo_ctx = userData;
mergeinfo_state_e state;
state = parser->state->current_state;
if (state == NONE && strcmp(name.name, SVN_DAV__MERGEINFO_REPORT) == 0)
{
svn_ra_serf__xml_push_state(parser, MERGEINFO_REPORT);
}
else if (state == MERGEINFO_REPORT &&
strcmp(name.name, SVN_DAV__MERGEINFO_ITEM) == 0)
{
svn_ra_serf__xml_push_state(parser, MERGEINFO_ITEM);
svn_stringbuf_setempty(mergeinfo_ctx->curr_path);
svn_stringbuf_setempty(mergeinfo_ctx->curr_info);
}
else if (state == MERGEINFO_ITEM &&
strcmp(name.name, SVN_DAV__MERGEINFO_PATH) == 0)
{
svn_ra_serf__xml_push_state(parser, MERGEINFO_PATH);
}
else if (state == MERGEINFO_ITEM &&
strcmp(name.name, SVN_DAV__MERGEINFO_INFO) == 0)
{
svn_ra_serf__xml_push_state(parser, MERGEINFO_INFO);
}
return SVN_NO_ERROR;
}
static svn_error_t *
end_element(svn_ra_serf__xml_parser_t *parser, void *userData,
svn_ra_serf__dav_props_t name)
{
mergeinfo_context_t *mergeinfo_ctx = userData;
mergeinfo_state_e state;
state = parser->state->current_state;
if (state == MERGEINFO_REPORT &&
strcmp(name.name, SVN_DAV__MERGEINFO_REPORT) == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
else if (state == MERGEINFO_ITEM
&& strcmp(name.name, SVN_DAV__MERGEINFO_ITEM) == 0)
{
if (mergeinfo_ctx->curr_info && mergeinfo_ctx->curr_path)
{
svn_mergeinfo_t path_mergeinfo;
SVN_ERR_ASSERT(mergeinfo_ctx->curr_path->data);
SVN_ERR(svn_mergeinfo_parse(&path_mergeinfo,
mergeinfo_ctx->curr_info->data,
mergeinfo_ctx->pool));
apr_hash_set(mergeinfo_ctx->result_catalog,
apr_pstrdup(mergeinfo_ctx->pool,
mergeinfo_ctx->curr_path->data),
APR_HASH_KEY_STRING, path_mergeinfo);
}
svn_ra_serf__xml_pop_state(parser);
}
else if (state == MERGEINFO_PATH
&& strcmp(name.name, SVN_DAV__MERGEINFO_PATH) == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
else if (state == MERGEINFO_INFO
&& strcmp(name.name, SVN_DAV__MERGEINFO_INFO) == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
return SVN_NO_ERROR;
}
static svn_error_t *
cdata_handler(svn_ra_serf__xml_parser_t *parser, void *userData,
const char *data, apr_size_t len)
{
mergeinfo_context_t *mergeinfo_ctx = userData;
mergeinfo_state_e state;
state = parser->state->current_state;
switch (state)
{
case MERGEINFO_PATH:
if (mergeinfo_ctx->curr_path)
svn_stringbuf_appendbytes(mergeinfo_ctx->curr_path, data, len);
break;
case MERGEINFO_INFO:
if (mergeinfo_ctx->curr_info)
svn_stringbuf_appendbytes(mergeinfo_ctx->curr_info, data, len);
break;
default:
break;
}
return SVN_NO_ERROR;
}
static serf_bucket_t *
create_mergeinfo_body(void *baton,
serf_bucket_alloc_t *alloc,
apr_pool_t *pool)
{
mergeinfo_context_t *mergeinfo_ctx = baton;
serf_bucket_t *body_bkt;
int i;
body_bkt = serf_bucket_aggregate_create(alloc);
svn_ra_serf__add_open_tag_buckets(body_bkt, alloc,
"S:" SVN_DAV__MERGEINFO_REPORT,
"xmlns:S", SVN_XML_NAMESPACE,
NULL);
svn_ra_serf__add_tag_buckets(body_bkt,
"S:" SVN_DAV__REVISION,
apr_ltoa(pool, mergeinfo_ctx->revision),
alloc);
svn_ra_serf__add_tag_buckets(body_bkt, "S:" SVN_DAV__INHERIT,
svn_inheritance_to_word(mergeinfo_ctx->inherit),
alloc);
if (mergeinfo_ctx->include_descendants)
{
svn_ra_serf__add_tag_buckets(body_bkt, "S:"
SVN_DAV__INCLUDE_DESCENDANTS,
"yes", alloc);
}
if (mergeinfo_ctx->paths)
{
for (i = 0; i < mergeinfo_ctx->paths->nelts; i++)
{
const char *this_path =
apr_xml_quote_string(pool,
APR_ARRAY_IDX(mergeinfo_ctx->paths,
i, const char *),
0);
svn_ra_serf__add_tag_buckets(body_bkt, "S:" SVN_DAV__PATH,
this_path, alloc);
}
}
svn_ra_serf__add_close_tag_buckets(body_bkt, alloc,
"S:" SVN_DAV__MERGEINFO_REPORT);
return body_bkt;
}
/* Request a mergeinfo-report from the URL attached to SESSION,
and fill in the MERGEINFO hash with the results. */
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)
{
svn_error_t *err, *err2;
int status_code;
mergeinfo_context_t *mergeinfo_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 *relative_url, *basecoll_url;
const char *path;
SVN_ERR(svn_ra_serf__get_baseline_info(&basecoll_url, &relative_url, session,
NULL, NULL, revision, NULL, pool));
path = svn_path_url_add_component(basecoll_url, relative_url, pool);
mergeinfo_ctx = apr_pcalloc(pool, sizeof(*mergeinfo_ctx));
mergeinfo_ctx->pool = pool;
mergeinfo_ctx->curr_path = svn_stringbuf_create("", pool);
mergeinfo_ctx->curr_info = svn_stringbuf_create("", pool);
mergeinfo_ctx->done = FALSE;
mergeinfo_ctx->result_catalog = apr_hash_make(pool);
mergeinfo_ctx->paths = paths;
mergeinfo_ctx->revision = revision;
mergeinfo_ctx->inherit = inherit;
mergeinfo_ctx->include_descendants = include_descendants;
handler = apr_pcalloc(pool, sizeof(*handler));
handler->method = "REPORT";
handler->path = path;
handler->conn = session->conns[0];
handler->session = session;
handler->body_delegate = create_mergeinfo_body;
handler->body_delegate_baton = mergeinfo_ctx;
handler->body_type = "text/xml";
parser_ctx = apr_pcalloc(pool, sizeof(*parser_ctx));
parser_ctx->pool = pool;
parser_ctx->user_data = mergeinfo_ctx;
parser_ctx->start = start_element;
parser_ctx->end = end_element;
parser_ctx->cdata = cdata_handler;
parser_ctx->done = &mergeinfo_ctx->done;
parser_ctx->status_code = &status_code;
handler->response_handler = svn_ra_serf__handle_xml_parser;
handler->response_baton = parser_ctx;
svn_ra_serf__request_create(handler);
err = svn_ra_serf__context_run_wait(&mergeinfo_ctx->done, session, pool);
err2 = svn_ra_serf__error_on_status(status_code, handler->path);
if (err2)
{
svn_error_clear(err);
SVN_ERR(err2);
}
if (parser_ctx->error)
{
svn_error_clear(err);
SVN_ERR(parser_ctx->error);
}
else
SVN_ERR(err);
if (mergeinfo_ctx->done)
*catalog = mergeinfo_ctx->result_catalog;
return SVN_NO_ERROR;
}