#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 "svn_config.h"
#include "svn_delta.h"
#include "svn_version.h"
#include "svn_path.h"
#include "svn_base64.h"
#include "svn_props.h"
#include "svn_private_config.h"
#include "ra_serf.h"
#include "../libsvn_ra/ra_loader.h"
typedef enum {
NONE = 0,
FILE_REVS_REPORT,
FILE_REV,
REV_PROP,
SET_PROP,
REMOVE_PROP,
MERGED_REVISION,
TXDELTA,
} blame_state_e;
typedef struct {
apr_pool_t *pool;
const char *path;
svn_revnum_t rev;
apr_hash_t *rev_props;
apr_array_header_t *prop_diffs;
svn_txdelta_window_handler_t txdelta;
void *txdelta_baton;
svn_stream_t *stream;
svn_boolean_t prop_base64;
const char *prop_name;
const char *prop_attr;
apr_size_t prop_attr_len;
svn_string_t *prop_string;
svn_boolean_t merged_revision;
} blame_info_t;
typedef struct {
apr_pool_t *pool;
const char *path;
svn_revnum_t start;
svn_revnum_t end;
svn_boolean_t done;
svn_file_rev_handler_t file_rev;
void *file_rev_baton;
} blame_context_t;
static blame_info_t *
push_state(svn_ra_serf__xml_parser_t *parser,
blame_context_t *blame_ctx,
blame_state_e state)
{
svn_ra_serf__xml_push_state(parser, state);
if (state == FILE_REV)
{
blame_info_t *info;
info = apr_palloc(parser->state->pool, sizeof(*info));
info->pool = parser->state->pool;
info->rev = SVN_INVALID_REVNUM;
info->path = NULL;
info->rev_props = apr_hash_make(info->pool);
info->prop_diffs = apr_array_make(info->pool, 0, sizeof(svn_prop_t));
info->stream = NULL;
info->merged_revision = FALSE;
parser->state->private = info;
}
return parser->state->private;
}
static const svn_string_t *
create_propval(blame_info_t *info)
{
const svn_string_t *s;
if (!info->prop_attr)
{
return svn_string_create("", info->pool);
}
else
{
info->prop_attr = apr_pmemdup(info->pool, info->prop_attr,
info->prop_attr_len + 1);
}
s = svn_string_ncreate(info->prop_attr, info->prop_attr_len + 1, info->pool);
if (info->prop_base64 == TRUE)
{
s = svn_base64_decode_string(s, info->pool);
}
return s;
}
static svn_error_t *
start_blame(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name,
const char **attrs)
{
blame_context_t *blame_ctx = userData;
blame_state_e state;
state = parser->state->current_state;
if (state == NONE && strcmp(name.name, "file-revs-report") == 0)
{
push_state(parser, blame_ctx, FILE_REVS_REPORT);
}
else if (state == FILE_REVS_REPORT &&
strcmp(name.name, "file-rev") == 0)
{
blame_info_t *info;
info = push_state(parser, blame_ctx, FILE_REV);
info->path = apr_pstrdup(info->pool,
svn_xml_get_attr_value("path", attrs));
info->rev = SVN_STR_TO_REV(svn_xml_get_attr_value("rev", attrs));
}
else if (state == FILE_REV)
{
blame_info_t *info;
const char *enc;
info = parser->state->private;
if (strcmp(name.name, "rev-prop") == 0)
{
push_state(parser, blame_ctx, REV_PROP);
}
else if (strcmp(name.name, "set-prop") == 0)
{
push_state(parser, blame_ctx, SET_PROP);
}
if (strcmp(name.name, "remove-prop") == 0)
{
push_state(parser, blame_ctx, REMOVE_PROP);
}
else if (strcmp(name.name, "merged-revision") == 0)
{
push_state(parser, blame_ctx, MERGED_REVISION);
}
else if (strcmp(name.name, "txdelta") == 0)
{
SVN_ERR(blame_ctx->file_rev(blame_ctx->file_rev_baton,
info->path, info->rev,
info->rev_props, info->merged_revision,
&info->txdelta, &info->txdelta_baton,
info->prop_diffs, info->pool));
info->stream = svn_base64_decode
(svn_txdelta_parse_svndiff(info->txdelta, info->txdelta_baton,
TRUE, info->pool), info->pool);
push_state(parser, blame_ctx, TXDELTA);
}
state = parser->state->current_state;
switch (state)
{
case REV_PROP:
case SET_PROP:
case REMOVE_PROP:
info->prop_name = apr_pstrdup(info->pool,
svn_xml_get_attr_value("name", attrs));
info->prop_attr = NULL;
info->prop_attr_len = 0;
enc = svn_xml_get_attr_value("encoding", attrs);
if (enc && strcmp(enc, "base64") == 0)
{
info->prop_base64 = TRUE;
}
else
{
info->prop_base64 = FALSE;
}
break;
case MERGED_REVISION:
info->merged_revision = TRUE;
break;
default:
break;
}
}
return SVN_NO_ERROR;
}
static svn_error_t *
end_blame(svn_ra_serf__xml_parser_t *parser,
void *userData,
svn_ra_serf__dav_props_t name)
{
blame_context_t *blame_ctx = userData;
blame_state_e state;
blame_info_t *info;
state = parser->state->current_state;
info = parser->state->private;
if (state == NONE)
{
return SVN_NO_ERROR;
}
if (state == FILE_REVS_REPORT &&
strcmp(name.name, "file-revs-report") == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
else if (state == FILE_REV &&
strcmp(name.name, "file-rev") == 0)
{
if (!info->stream)
{
SVN_ERR(blame_ctx->file_rev(blame_ctx->file_rev_baton,
info->path, info->rev,
info->rev_props, FALSE,
NULL, NULL,
info->prop_diffs, info->pool));
}
svn_ra_serf__xml_pop_state(parser);
}
else if (state == REV_PROP &&
strcmp(name.name, "rev-prop") == 0)
{
apr_hash_set(info->rev_props,
info->prop_name, APR_HASH_KEY_STRING,
create_propval(info));
svn_ra_serf__xml_pop_state(parser);
}
else if ((state == SET_PROP &&
strcmp(name.name, "set-prop") == 0) ||
(state == REMOVE_PROP &&
strcmp(name.name, "remove-prop") == 0))
{
svn_prop_t *prop = apr_array_push(info->prop_diffs);
prop->name = info->prop_name;
prop->value = create_propval(info);
svn_ra_serf__xml_pop_state(parser);
}
else if (state == MERGED_REVISION &&
strcmp(name.name, "merged-revision") == 0)
{
svn_ra_serf__xml_pop_state(parser);
}
else if (state == TXDELTA &&
strcmp(name.name, "txdelta") == 0)
{
svn_stream_close(info->stream);
svn_ra_serf__xml_pop_state(parser);
}
return SVN_NO_ERROR;
}
static svn_error_t *
cdata_blame(svn_ra_serf__xml_parser_t *parser,
void *userData,
const char *data,
apr_size_t len)
{
blame_context_t *blame_ctx = userData;
blame_state_e state;
blame_info_t *info;
UNUSED_CTX(blame_ctx);
state = parser->state->current_state;
info = parser->state->private;
if (state == NONE)
{
return SVN_NO_ERROR;
}
switch (state)
{
case REV_PROP:
case SET_PROP:
svn_ra_serf__expand_string(&info->prop_attr, &info->prop_attr_len,
data, len, parser->state->pool);
break;
case TXDELTA:
if (info->stream)
{
apr_size_t ret_len;
ret_len = len;
SVN_ERR(svn_stream_write(info->stream, data, &ret_len));
}
break;
default:
break;
}
return SVN_NO_ERROR;
}
svn_error_t *
svn_ra_serf__get_file_revs(svn_ra_session_t *ra_session,
const char *path,
svn_revnum_t start,
svn_revnum_t end,
svn_boolean_t include_merged_revisions,
svn_file_rev_handler_t rev_handler,
void *rev_handler_baton,
apr_pool_t *pool)
{
blame_context_t *blame_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;
const char *relative_url, *basecoll_url, *req_url;
int status_code;
svn_error_t *err;
blame_ctx = apr_pcalloc(pool, sizeof(*blame_ctx));
blame_ctx->pool = pool;
blame_ctx->file_rev = rev_handler;
blame_ctx->file_rev_baton = rev_handler_baton;
blame_ctx->start = start;
blame_ctx->end = end;
blame_ctx->done = FALSE;
buckets = serf_bucket_aggregate_create(session->bkt_alloc);
svn_ra_serf__add_open_tag_buckets(buckets, session->bkt_alloc,
"S:file-revs-report",
"xmlns:S", SVN_XML_NAMESPACE,
NULL);
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 (include_merged_revisions)
{
svn_ra_serf__add_tag_buckets(buckets,
"S:include-merged-revisions", NULL,
session->bkt_alloc);
}
svn_ra_serf__add_tag_buckets(buckets,
"S:path", path,
session->bkt_alloc);
svn_ra_serf__add_close_tag_buckets(buckets, session->bkt_alloc,
"S:file-revs-report");
SVN_ERR(svn_ra_serf__get_baseline_info(&basecoll_url, &relative_url, session,
NULL, session->repos_url.path,
end, NULL, pool));
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 = blame_ctx;
parser_ctx->start = start_blame;
parser_ctx->end = end_blame;
parser_ctx->cdata = cdata_blame;
parser_ctx->done = &blame_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(&blame_ctx->done, session, pool);
if (parser_ctx->error)
{
svn_error_clear(err);
err = SVN_NO_ERROR;
SVN_ERR(parser_ctx->error);
}
SVN_ERR(svn_ra_serf__error_on_status(status_code, handler->path));
return err;
}