/*
* log.c : entry point for log RA functions for ra_serf
*
* ====================================================================
* Copyright (c) 2006 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 <apr_uri.h>
#include <expat.h>
#include <serf.h>
#include "svn_pools.h"
#include "svn_ra.h"
#include "svn_dav.h"
#include "svn_xml.h"
#include "../libsvn_ra/ra_loader.h"
#include "svn_config.h"
#include "svn_delta.h"
#include "svn_version.h"
#include "svn_path.h"
#include "svn_private_config.h"
#include "ra_serf.h"
/*
* This enum represents the current state of our XML parsing for a REPORT.
*/
typedef enum {
NONE = 0,
REPORT,
ITEM,
VERSION,
CREATOR,
DATE,
COMMENT,
ADDED_PATH,
REPLACED_PATH,
DELETED_PATH,
MODIFIED_PATH,
} log_state_e;
typedef struct {
apr_pool_t *pool;
/* The currently collected value as we build it up */
const char *tmp;
apr_size_t tmp_len;
/* Temporary change path - ultimately inserted into changed_paths hash. */
svn_log_changed_path_t *tmp_path;
/* Hashtable of paths */
apr_hash_t *changed_paths;
/* Other log fields */
svn_revnum_t version;
const char *creator;
const char *date;
const char *comment;
} log_info_t;
typedef struct {
apr_pool_t *pool;
/* parameters set by our caller */
int limit;
int count;
svn_boolean_t changed_paths;
/* are we done? */
svn_boolean_t done;
/* log receiver function and baton */
svn_log_message_receiver_t receiver;
void *receiver_baton;
} log_context_t;
static log_info_t *
push_state(svn_ra_serf__xml_parser_t *parser,
log_context_t *log_ctx,
log_state_e state)
{
svn_ra_serf__xml_push_state(parser, state);
if (state == ITEM)
{
log_info_t *info;
info = apr_pcalloc(parser->state->pool, sizeof(*info));
info->pool = parser->state->pool;
info->version = SVN_INVALID_REVNUM;
parser->state->private = info;
}
if (state == ADDED_PATH || state == REPLACED_PATH ||
state == DELETED_PATH || state == MODIFIED_PATH)
{
log_info_t *info = parser->state->private;
if (!info->changed_paths)
{
info->changed_paths = apr_hash_make(info->pool);
}
info->tmp_path = apr_pcalloc(info->pool, sizeof(*info->tmp_path));
info->tmp_path->copyfrom_rev = SVN_INVALID_REVNUM;
}
return parser->state->private;
}
static svn_error_t *
start_log(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name,
const char **attrs)
{
log_context_t *log_ctx = userData;
log_state_e state;
state = parser->state->current_state;
if (state == NONE &&
strcmp(name.name, "log-report") == 0)
{
push_state(parser, log_ctx, REPORT);
}
else if (state == REPORT &&
strcmp(name.name, "log-item") == 0)
{
log_ctx->count++;
if (log_ctx->limit && log_ctx->count > log_ctx->limit)
{
return SVN_NO_ERROR;
}
push_state(parser, log_ctx, ITEM);
}
else if (state == ITEM)
{
log_info_t *info;
if (strcmp(name.name, "version-name") == 0)
{
push_state(parser, log_ctx, VERSION);
}
else if (strcmp(name.name, "creator-displayname") == 0)
{
push_state(parser, log_ctx, CREATOR);
}
else if (strcmp(name.name, "date") == 0)
{
push_state(parser, log_ctx, DATE);
}
else if (strcmp(name.name, "comment") == 0)
{
push_state(parser, log_ctx, COMMENT);
}
else if (strcmp(name.name, "added-path") == 0)
{
const char *copy_path, *copy_rev_str;
info = push_state(parser, log_ctx, ADDED_PATH);
info->tmp_path->action = 'A';
copy_path = svn_ra_serf__find_attr(attrs, "copyfrom-path");
copy_rev_str = svn_ra_serf__find_attr(attrs, "copyfrom-rev");
if (copy_path && copy_rev_str)
{
svn_revnum_t copy_rev;
copy_rev = SVN_STR_TO_REV(copy_rev_str);
if (SVN_IS_VALID_REVNUM(copy_rev))
{
info->tmp_path->copyfrom_path = apr_pstrdup(info->pool,
copy_path);
info->tmp_path->copyfrom_rev = copy_rev;
}
}
}
else if (strcmp(name.name, "replaced-path") == 0)
{
const char *copy_path, *copy_rev_str;
info = push_state(parser, log_ctx, REPLACED_PATH);
info->tmp_path->action = 'R';
copy_path = svn_ra_serf__find_attr(attrs, "copyfrom-path");
copy_rev_str = svn_ra_serf__find_attr(attrs, "copyfrom-rev");
if (copy_path && copy_rev_str)
{
svn_revnum_t copy_rev;
copy_rev = SVN_STR_TO_REV(copy_rev_str);
if (SVN_IS_VALID_REVNUM(copy_rev))
{
info->tmp_path->copyfrom_path = apr_pstrdup(info->pool,
copy_path);
info->tmp_path->copyfrom_rev = copy_rev;
}
}
}
else if (strcmp(name.name, "deleted-path") == 0)
{
info = push_state(parser, log_ctx, DELETED_PATH);
info->tmp_path->action = 'D';
}
else if (strcmp(name.name, "modified-path") == 0)
{
info = push_state(parser, log_ctx, MODIFIED_PATH);
info->tmp_path->action = 'M';
}
}
return SVN_NO_ERROR;
}
static svn_error_t *
end_log(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name)
{
log_context_t *log_ctx = userData;
log_state_e state;
log_info_t *info;
state = parser->state->current_state;
info = parser->state->private;
if (state == REPORT &&
strcmp(name.name, "log-report") == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
else if (state == ITEM &&
strcmp(name.name, "log-item") == 0)
{
/* Give the info to the reporter */
SVN_ERR(log_ctx->receiver(log_ctx->receiver_baton,
info->changed_paths,
info->version,
info->creator,
info->date,
info->comment,
info->pool));
svn_ra_serf__xml_pop_state(parser);
}
else if (state == VERSION &&
strcmp(name.name, "version-name") == 0)
{
info->version = SVN_STR_TO_REV(info->tmp);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == CREATOR &&
strcmp(name.name, "creator-displayname") == 0)
{
info->creator = apr_pstrmemdup(info->pool, info->tmp, info->tmp_len);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if (state == DATE &&
strcmp(name.name, "date") == 0)
{
info->date = 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->comment = apr_pstrmemdup(info->pool, info->tmp, info->tmp_len);
info->tmp_len = 0;
svn_ra_serf__xml_pop_state(parser);
}
else if ((state == ADDED_PATH &&
strcmp(name.name, "added-path") == 0) ||
(state == DELETED_PATH &&
strcmp(name.name, "deleted-path") == 0) ||
(state == MODIFIED_PATH &&
strcmp(name.name, "modified-path") == 0) ||
(state == REPLACED_PATH &&
strcmp(name.name, "replaced-path") == 0))
{
char *path;
path = apr_pstrmemdup(info->pool, info->tmp, info->tmp_len);
info->tmp_len = 0;
apr_hash_set(info->changed_paths, path, APR_HASH_KEY_STRING,
info->tmp_path);
svn_ra_serf__xml_pop_state(parser);
}
return SVN_NO_ERROR;
}
static svn_error_t *
cdata_log(svn_ra_serf__xml_parser_t *parser,
void *userData,
const char *data,
apr_size_t len)
{
log_context_t *log_ctx = userData;
log_state_e state;
log_info_t *info;
state = parser->state->current_state;
info = parser->state->private;
switch (state)
{
case VERSION:
case CREATOR:
case DATE:
case COMMENT:
case ADDED_PATH:
case REPLACED_PATH:
case DELETED_PATH:
case MODIFIED_PATH:
svn_ra_serf__expand_string(&info->tmp, &info->tmp_len,
data, len, parser->state->pool);
break;
default:
break;
}
return SVN_NO_ERROR;
}
svn_error_t *
svn_ra_serf__get_log(svn_ra_session_t *ra_session,
const apr_array_header_t *paths,
svn_revnum_t start,
svn_revnum_t end,
int limit,
svn_boolean_t discover_changed_paths,
svn_boolean_t strict_node_history,
svn_log_message_receiver_t receiver,
void *receiver_baton,
apr_pool_t *pool)
{
log_context_t *log_ctx;
svn_ra_serf__session_t *session = ra_session->priv;
svn_ra_serf__handler_t *handler;
svn_ra_serf__xml_parser_t *parser_ctx;
serf_bucket_t *buckets, *tmp;
apr_hash_t *props;
svn_revnum_t peg_rev;
const char *vcc_url, *relative_url, *baseline_url, *basecoll_url, *req_url;
log_ctx = apr_pcalloc(pool, sizeof(*log_ctx));
log_ctx->pool = pool;
log_ctx->receiver = receiver;
log_ctx->receiver_baton = receiver_baton;
log_ctx->limit = limit;
log_ctx->changed_paths = discover_changed_paths;
log_ctx->done = FALSE;
buckets = serf_bucket_aggregate_create(session->bkt_alloc);
tmp = SERF_BUCKET_SIMPLE_STRING_LEN("<S:log-report xmlns:S=\"",
sizeof("<S:log-report xmlns:S=\"")-1,
session->bkt_alloc);
serf_bucket_aggregate_append(buckets, tmp);
tmp = SERF_BUCKET_SIMPLE_STRING_LEN(SVN_XML_NAMESPACE,
sizeof(SVN_XML_NAMESPACE)-1,
session->bkt_alloc);
serf_bucket_aggregate_append(buckets, tmp);
tmp = SERF_BUCKET_SIMPLE_STRING_LEN("\">",
sizeof("\">")-1,
session->bkt_alloc);
serf_bucket_aggregate_append(buckets, tmp);
svn_ra_serf__add_tag_buckets(buckets,
"S:start-revision", apr_ltoa(pool, start),
session->bkt_alloc);
svn_ra_serf__add_tag_buckets(buckets,
"S:end-revision", apr_ltoa(pool, end),
session->bkt_alloc);
if (limit)
{
svn_ra_serf__add_tag_buckets(buckets,
"S:limit", apr_ltoa(pool, limit),
session->bkt_alloc);
}
if (discover_changed_paths)
{
svn_ra_serf__add_tag_buckets(buckets,
"S:discover-changed-paths", NULL,
session->bkt_alloc);
}
if (strict_node_history)
{
svn_ra_serf__add_tag_buckets(buckets,
"S:strict-node-history", NULL,
session->bkt_alloc);
}
if (paths)
{
int i;
for (i = 0; i < paths->nelts; i++)
{
svn_ra_serf__add_tag_buckets(buckets,
"S:path", ((const char**)paths->elts)[i],
session->bkt_alloc);
}
}
tmp = SERF_BUCKET_SIMPLE_STRING_LEN("</S:log-report>",
sizeof("</S:log-report>")-1,
session->bkt_alloc);
serf_bucket_aggregate_append(buckets, tmp);
props = apr_hash_make(pool);
SVN_ERR(svn_ra_serf__discover_root(&vcc_url, &relative_url,
session, session->conns[0],
session->repos_url.path, pool));
/* At this point, we may have a deleted file. So, we'll match ra_dav's
* behavior and use the larger of start or end as our 'peg' rev.
*/
peg_rev = (start > end) ? start : end;
SVN_ERR(svn_ra_serf__retrieve_props(props, session, session->conns[0],
vcc_url, peg_rev, "0",
checked_in_props, pool));
baseline_url = svn_ra_serf__get_ver_prop(props, vcc_url, peg_rev,
"DAV:", "href");
if (!baseline_url)
{
abort();
}
SVN_ERR(svn_ra_serf__retrieve_props(props, session, session->conns[0],
baseline_url, peg_rev, "0",
baseline_props, pool));
basecoll_url = svn_ra_serf__get_ver_prop(props, baseline_url, peg_rev,
"DAV:", "baseline-collection");
if (!basecoll_url)
{
abort();
}
req_url = svn_path_url_add_component(basecoll_url, relative_url, pool);
handler = apr_pcalloc(pool, sizeof(*handler));
handler->method = "REPORT";
handler->path = req_url;
handler->body_buckets = buckets;
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 = log_ctx;
parser_ctx->start = start_log;
parser_ctx->end = end_log;
parser_ctx->cdata = cdata_log;
parser_ctx->done = &log_ctx->done;
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(&log_ctx->done, session, pool));
return SVN_NO_ERROR;
}
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