getlocations.c revision 251881
1/* 2 * getlocations.c : entry point for get_locations RA functions 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#include <apr_uri.h> 27 28#include <serf.h> 29 30#include "svn_hash.h" 31#include "svn_path.h" 32#include "svn_pools.h" 33#include "svn_ra.h" 34#include "svn_xml.h" 35#include "svn_private_config.h" 36 37#include "../libsvn_ra/ra_loader.h" 38 39#include "ra_serf.h" 40 41 42/* 43 * This enum represents the current state of our XML parsing for a REPORT. 44 */ 45enum loc_state_e { 46 INITIAL = 0, 47 REPORT, 48 LOCATION 49}; 50 51typedef struct loc_context_t { 52 /* pool to allocate memory from */ 53 apr_pool_t *pool; 54 55 /* parameters set by our caller */ 56 const char *path; 57 const apr_array_header_t *location_revisions; 58 svn_revnum_t peg_revision; 59 60 /* Returned location hash */ 61 apr_hash_t *paths; 62 63} loc_context_t; 64 65#define D_ "DAV:" 66#define S_ SVN_XML_NAMESPACE 67static const svn_ra_serf__xml_transition_t getloc_ttable[] = { 68 { INITIAL, S_, "get-locations-report", REPORT, 69 FALSE, { NULL }, FALSE }, 70 71 { REPORT, S_, "location", LOCATION, 72 FALSE, { "?rev", "?path", NULL }, TRUE }, 73 74 { 0 } 75}; 76 77 78/* Conforms to svn_ra_serf__xml_closed_t */ 79static svn_error_t * 80getloc_closed(svn_ra_serf__xml_estate_t *xes, 81 void *baton, 82 int leaving_state, 83 const svn_string_t *cdata, 84 apr_hash_t *attrs, 85 apr_pool_t *scratch_pool) 86{ 87 loc_context_t *loc_ctx = baton; 88 const char *revstr; 89 const char *path; 90 91 SVN_ERR_ASSERT(leaving_state == LOCATION); 92 93 revstr = svn_hash_gets(attrs, "rev"); 94 path = svn_hash_gets(attrs, "path"); 95 if (revstr != NULL && path != NULL) 96 { 97 svn_revnum_t rev = SVN_STR_TO_REV(revstr); 98 apr_hash_set(loc_ctx->paths, 99 apr_pmemdup(loc_ctx->pool, &rev, sizeof(rev)), sizeof(rev), 100 apr_pstrdup(loc_ctx->pool, path)); 101 } 102 103 return SVN_NO_ERROR; 104} 105 106 107/* Implements svn_ra_serf__request_body_delegate_t */ 108static svn_error_t * 109create_get_locations_body(serf_bucket_t **body_bkt, 110 void *baton, 111 serf_bucket_alloc_t *alloc, 112 apr_pool_t *pool) 113{ 114 serf_bucket_t *buckets; 115 loc_context_t *loc_ctx = baton; 116 int i; 117 118 buckets = serf_bucket_aggregate_create(alloc); 119 120 svn_ra_serf__add_open_tag_buckets(buckets, alloc, 121 "S:get-locations", 122 "xmlns:S", SVN_XML_NAMESPACE, 123 "xmlns:D", "DAV:", 124 NULL); 125 126 svn_ra_serf__add_tag_buckets(buckets, 127 "S:path", loc_ctx->path, 128 alloc); 129 130 svn_ra_serf__add_tag_buckets(buckets, 131 "S:peg-revision", apr_ltoa(pool, loc_ctx->peg_revision), 132 alloc); 133 134 for (i = 0; i < loc_ctx->location_revisions->nelts; i++) 135 { 136 svn_revnum_t rev = APR_ARRAY_IDX(loc_ctx->location_revisions, i, svn_revnum_t); 137 svn_ra_serf__add_tag_buckets(buckets, 138 "S:location-revision", apr_ltoa(pool, rev), 139 alloc); 140 } 141 142 svn_ra_serf__add_close_tag_buckets(buckets, alloc, 143 "S:get-locations"); 144 145 *body_bkt = buckets; 146 return SVN_NO_ERROR; 147} 148 149svn_error_t * 150svn_ra_serf__get_locations(svn_ra_session_t *ra_session, 151 apr_hash_t **locations, 152 const char *path, 153 svn_revnum_t peg_revision, 154 const apr_array_header_t *location_revisions, 155 apr_pool_t *pool) 156{ 157 loc_context_t *loc_ctx; 158 svn_ra_serf__session_t *session = ra_session->priv; 159 svn_ra_serf__handler_t *handler; 160 svn_ra_serf__xml_context_t *xmlctx; 161 const char *req_url; 162 svn_error_t *err; 163 164 loc_ctx = apr_pcalloc(pool, sizeof(*loc_ctx)); 165 loc_ctx->pool = pool; 166 loc_ctx->path = path; 167 loc_ctx->peg_revision = peg_revision; 168 loc_ctx->location_revisions = location_revisions; 169 loc_ctx->paths = apr_hash_make(loc_ctx->pool); 170 171 *locations = loc_ctx->paths; 172 173 SVN_ERR(svn_ra_serf__get_stable_url(&req_url, NULL /* latest_revnum */, 174 session, NULL /* conn */, 175 NULL /* url */, peg_revision, 176 pool, pool)); 177 178 xmlctx = svn_ra_serf__xml_context_create(getloc_ttable, 179 NULL, getloc_closed, NULL, 180 loc_ctx, 181 pool); 182 handler = svn_ra_serf__create_expat_handler(xmlctx, pool); 183 184 handler->method = "REPORT"; 185 handler->path = req_url; 186 handler->body_delegate = create_get_locations_body; 187 handler->body_delegate_baton = loc_ctx; 188 handler->body_type = "text/xml"; 189 handler->conn = session->conns[0]; 190 handler->session = session; 191 192 err = svn_ra_serf__context_run_one(handler, pool); 193 194 SVN_ERR(svn_error_compose_create( 195 svn_ra_serf__error_on_status(handler->sline.code, 196 req_url, 197 handler->location), 198 err)); 199 200 return SVN_NO_ERROR; 201} 202