comparison: src/protocols/sametime/meanwhile/srvc_resolve.c
src/protocols/sametime/meanwhile/srvc_resolve.c
- changeset 12496
- 788b20ccec91
- parent 12495
- 4b2c27ae504a
- child 12497
- a17568773be3
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| 12495:4b2c27ae504a | 12496:788b20ccec91 |
|---|---|
| 1 | |
| 2 /* | |
| 3 Meanwhile - Unofficial Lotus Sametime Community Client Library | |
| 4 Copyright (C) 2004 Christopher (siege) O'Brien | |
| 5 | |
| 6 This library is free software; you can redistribute it and/or | |
| 7 modify it under the terms of the GNU Library General Public | |
| 8 License as published by the Free Software Foundation; either | |
| 9 version 2 of the License, or (at your option) any later version. | |
| 10 | |
| 11 This library is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Library General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU Library General Public | |
| 17 License along with this library; if not, write to the Free | |
| 18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 19 */ | |
| 20 | |
| 21 #include <glib/ghash.h> | |
| 22 | |
| 23 #include "mw_channel.h" | |
| 24 #include "mw_common.h" | |
| 25 #include "mw_debug.h" | |
| 26 #include "mw_error.h" | |
| 27 #include "mw_service.h" | |
| 28 #include "mw_session.h" | |
| 29 #include "mw_srvc_resolve.h" | |
| 30 | |
| 31 | |
| 32 #define PROTOCOL_TYPE 0x00000015 | |
| 33 #define PROTOCOL_VER 0x00000000 | |
| 34 | |
| 35 | |
| 36 /** oddly, there is only one message type in this service */ | |
| 37 #define RESOLVE_ACTION 0x02 | |
| 38 | |
| 39 | |
| 40 struct mwServiceResolve { | |
| 41 struct mwService service; | |
| 42 | |
| 43 struct mwChannel *channel; /**< channel for this service */ | |
| 44 GHashTable *searches; /**< guint32:struct mw_search */ | |
| 45 guint32 counter; /**< incremented to provide searche IDs */ | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 /** structure representing an active search. keeps track of the ID, | |
| 50 the handler, and the optional user data and cleanup */ | |
| 51 struct mw_search { | |
| 52 struct mwServiceResolve *service; | |
| 53 guint32 id; | |
| 54 mwResolveHandler handler; | |
| 55 gpointer data; | |
| 56 GDestroyNotify cleanup; | |
| 57 }; | |
| 58 | |
| 59 | |
| 60 static struct mw_search *search_new(struct mwServiceResolve *srvc, | |
| 61 mwResolveHandler handler, | |
| 62 gpointer data, GDestroyNotify cleanup) { | |
| 63 | |
| 64 struct mw_search *search = g_new0(struct mw_search, 1); | |
| 65 | |
| 66 search->service = srvc; | |
| 67 search->handler = handler; | |
| 68 | |
| 69 /* we want search IDs that aren't SEARCH_ERROR */ | |
| 70 do { | |
| 71 search->id = srvc->counter++; | |
| 72 } while(search->id == SEARCH_ERROR); | |
| 73 | |
| 74 search->data = data; | |
| 75 search->cleanup = cleanup; | |
| 76 | |
| 77 return search; | |
| 78 } | |
| 79 | |
| 80 | |
| 81 /** called whenever a mw_search is removed from the searches table of | |
| 82 the service */ | |
| 83 static void search_free(struct mw_search *search) { | |
| 84 g_return_if_fail(search != NULL); | |
| 85 | |
| 86 if(search->cleanup) | |
| 87 search->cleanup(search->data); | |
| 88 | |
| 89 g_free(search); | |
| 90 } | |
| 91 | |
| 92 | |
| 93 static const char *get_name(struct mwService *srvc) { | |
| 94 return "Identity Resolution"; | |
| 95 } | |
| 96 | |
| 97 | |
| 98 static const char *get_desc(struct mwService *srvc) { | |
| 99 return "Resolves short IDs to full IDs"; | |
| 100 } | |
| 101 | |
| 102 | |
| 103 static struct mwChannel *make_channel(struct mwServiceResolve *srvc) { | |
| 104 struct mwSession *session; | |
| 105 struct mwChannelSet *cs; | |
| 106 struct mwChannel *chan; | |
| 107 | |
| 108 session = mwService_getSession(MW_SERVICE(srvc)); | |
| 109 cs = mwSession_getChannels(session); | |
| 110 chan = mwChannel_newOutgoing(cs); | |
| 111 | |
| 112 mwChannel_setService(chan, MW_SERVICE(srvc)); | |
| 113 mwChannel_setProtoType(chan, PROTOCOL_TYPE); | |
| 114 mwChannel_setProtoVer(chan, PROTOCOL_VER); | |
| 115 | |
| 116 return mwChannel_create(chan)? NULL: chan; | |
| 117 } | |
| 118 | |
| 119 | |
| 120 static void start(struct mwServiceResolve *srvc) { | |
| 121 struct mwChannel *chan; | |
| 122 | |
| 123 g_return_if_fail(srvc != NULL); | |
| 124 | |
| 125 chan = make_channel(srvc); | |
| 126 if(chan) { | |
| 127 srvc->channel = chan; | |
| 128 } else { | |
| 129 mwService_stopped(MW_SERVICE(srvc)); | |
| 130 return; | |
| 131 } | |
| 132 | |
| 133 /* semi-lazily create the searches table */ | |
| 134 srvc->searches = g_hash_table_new_full(g_direct_hash, g_direct_equal, | |
| 135 NULL, (GDestroyNotify) search_free); | |
| 136 } | |
| 137 | |
| 138 | |
| 139 static void stop(struct mwServiceResolve *srvc) { | |
| 140 g_return_if_fail(srvc != NULL); | |
| 141 | |
| 142 if(srvc->channel) { | |
| 143 mwChannel_destroy(srvc->channel, ERR_SUCCESS, NULL); | |
| 144 srvc->channel = NULL; | |
| 145 } | |
| 146 | |
| 147 /* destroy all the pending requests. */ | |
| 148 g_hash_table_destroy(srvc->searches); | |
| 149 srvc->searches = NULL; | |
| 150 | |
| 151 mwService_stopped(MW_SERVICE(srvc)); | |
| 152 } | |
| 153 | |
| 154 | |
| 155 static void clear(struct mwServiceResolve *srvc) { | |
| 156 if(srvc->searches) { | |
| 157 g_hash_table_destroy(srvc->searches); | |
| 158 srvc->searches = NULL; | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 | |
| 163 static void recv_create(struct mwServiceResolve *srvc, | |
| 164 struct mwChannel *chan, | |
| 165 struct mwMsgChannelCreate *msg) { | |
| 166 | |
| 167 /* you serve me, not the other way around */ | |
| 168 mwChannel_destroy(chan, ERR_FAILURE, NULL); | |
| 169 } | |
| 170 | |
| 171 | |
| 172 static void recv_accept(struct mwServiceResolve *srvc, | |
| 173 struct mwChannel *chan, | |
| 174 struct mwMsgChannelAccept *msg) { | |
| 175 | |
| 176 g_return_if_fail(srvc != NULL); | |
| 177 g_return_if_fail(chan != NULL); | |
| 178 g_return_if_fail(chan == srvc->channel); | |
| 179 | |
| 180 mwService_started(MW_SERVICE(srvc)); | |
| 181 } | |
| 182 | |
| 183 | |
| 184 static void recv_destroy(struct mwServiceResolve *srvc, | |
| 185 struct mwChannel *chan, | |
| 186 struct mwMsgChannelDestroy *msg) { | |
| 187 | |
| 188 struct mwSession *session; | |
| 189 | |
| 190 g_return_if_fail(srvc != NULL); | |
| 191 g_return_if_fail(chan != NULL); | |
| 192 g_return_if_fail(chan == srvc->channel); | |
| 193 | |
| 194 srvc->channel = NULL; | |
| 195 mwService_stop(MW_SERVICE(srvc)); | |
| 196 | |
| 197 session = mwService_getSession(MW_SERVICE(srvc)); | |
| 198 g_return_if_fail(session != NULL); | |
| 199 | |
| 200 mwSession_senseService(session, mwService_getType(MW_SERVICE(srvc))); | |
| 201 } | |
| 202 | |
| 203 | |
| 204 static GList *load_matches(struct mwGetBuffer *b, guint32 count) { | |
| 205 GList *matches = NULL; | |
| 206 | |
| 207 while(count--) { | |
| 208 struct mwResolveMatch *m = g_new0(struct mwResolveMatch, 1); | |
| 209 | |
| 210 mwString_get(b, &m->id); | |
| 211 mwString_get(b, &m->name); | |
| 212 mwString_get(b, &m->desc); | |
| 213 guint32_get(b, &m->type); | |
| 214 | |
| 215 matches = g_list_append(matches, m); | |
| 216 } | |
| 217 | |
| 218 return matches; | |
| 219 } | |
| 220 | |
| 221 | |
| 222 static GList *load_results(struct mwGetBuffer *b, guint32 count) { | |
| 223 GList *results = NULL; | |
| 224 | |
| 225 while(count--) { | |
| 226 struct mwResolveResult *r = g_new0(struct mwResolveResult, 1); | |
| 227 guint32 junk, matches; | |
| 228 | |
| 229 guint32_get(b, &junk); | |
| 230 guint32_get(b, &r->code); | |
| 231 mwString_get(b, &r->name); | |
| 232 | |
| 233 guint32_get(b, &matches); | |
| 234 r->matches = load_matches(b, matches); | |
| 235 | |
| 236 results = g_list_append(results, r); | |
| 237 } | |
| 238 | |
| 239 return results; | |
| 240 } | |
| 241 | |
| 242 | |
| 243 static void free_matches(GList *matches) { | |
| 244 for(; matches; matches = g_list_delete_link(matches, matches)) { | |
| 245 struct mwResolveMatch *m = matches->data; | |
| 246 g_free(m->id); | |
| 247 g_free(m->name); | |
| 248 g_free(m->desc); | |
| 249 g_free(m); | |
| 250 } | |
| 251 } | |
| 252 | |
| 253 | |
| 254 static void free_results(GList *results) { | |
| 255 for(; results; results = g_list_delete_link(results, results)) { | |
| 256 struct mwResolveResult *r = results->data; | |
| 257 g_free(r->name); | |
| 258 free_matches(r->matches); | |
| 259 g_free(r); | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 | |
| 264 static void recv(struct mwServiceResolve *srvc, | |
| 265 struct mwChannel *chan, | |
| 266 guint16 type, struct mwOpaque *data) { | |
| 267 | |
| 268 struct mwGetBuffer *b; | |
| 269 guint32 junk, id, code, count; | |
| 270 struct mw_search *search; | |
| 271 | |
| 272 g_return_if_fail(srvc != NULL); | |
| 273 g_return_if_fail(chan != NULL); | |
| 274 g_return_if_fail(chan == srvc->channel); | |
| 275 g_return_if_fail(data != NULL); | |
| 276 | |
| 277 if(type != RESOLVE_ACTION) { | |
| 278 mw_mailme_opaque(data, "unknown message in resolve service: 0x%04x", type); | |
| 279 return; | |
| 280 } | |
| 281 | |
| 282 b = mwGetBuffer_wrap(data); | |
| 283 guint32_get(b, &junk); | |
| 284 guint32_get(b, &id); | |
| 285 guint32_get(b, &code); | |
| 286 guint32_get(b, &count); | |
| 287 | |
| 288 if(mwGetBuffer_error(b)) { | |
| 289 g_warning("error parsing search result"); | |
| 290 mwGetBuffer_free(b); | |
| 291 return; | |
| 292 } | |
| 293 | |
| 294 search = g_hash_table_lookup(srvc->searches, GUINT_TO_POINTER(id)); | |
| 295 | |
| 296 if(search) { | |
| 297 GList *results = load_results(b, count); | |
| 298 if(mwGetBuffer_error(b)) { | |
| 299 g_warning("error parsing search results"); | |
| 300 } else { | |
| 301 g_debug("triggering handler"); | |
| 302 search->handler(srvc, id, code, results, search->data); | |
| 303 } | |
| 304 free_results(results); | |
| 305 g_hash_table_remove(srvc->searches, GUINT_TO_POINTER(id)); | |
| 306 | |
| 307 } else { | |
| 308 g_debug("no search found: 0x%x", id); | |
| 309 } | |
| 310 | |
| 311 mwGetBuffer_free(b); | |
| 312 } | |
| 313 | |
| 314 | |
| 315 struct mwServiceResolve *mwServiceResolve_new(struct mwSession *session) { | |
| 316 struct mwServiceResolve *srvc_resolve; | |
| 317 struct mwService *srvc; | |
| 318 | |
| 319 g_return_val_if_fail(session != NULL, NULL); | |
| 320 | |
| 321 srvc_resolve = g_new0(struct mwServiceResolve, 1); | |
| 322 | |
| 323 srvc = MW_SERVICE(srvc_resolve); | |
| 324 | |
| 325 mwService_init(srvc, session, mwService_RESOLVE); | |
| 326 srvc->get_name = get_name; | |
| 327 srvc->get_desc = get_desc; | |
| 328 srvc->recv_create = (mwService_funcRecvCreate) recv_create; | |
| 329 srvc->recv_accept = (mwService_funcRecvAccept) recv_accept; | |
| 330 srvc->recv_destroy = (mwService_funcRecvDestroy) recv_destroy; | |
| 331 srvc->recv = (mwService_funcRecv) recv; | |
| 332 srvc->start = (mwService_funcStart) start; | |
| 333 srvc->stop = (mwService_funcStop) stop; | |
| 334 srvc->clear = (mwService_funcClear) clear; | |
| 335 | |
| 336 return srvc_resolve; | |
| 337 } | |
| 338 | |
| 339 | |
| 340 guint32 mwServiceResolve_resolve(struct mwServiceResolve *srvc, | |
| 341 GList *queries, enum mwResolveFlag flags, | |
| 342 mwResolveHandler handler, | |
| 343 gpointer data, GDestroyNotify cleanup) { | |
| 344 | |
| 345 struct mw_search *search; | |
| 346 struct mwPutBuffer *b; | |
| 347 struct mwOpaque o = { 0, 0 }; | |
| 348 int ret, count = 0; | |
| 349 | |
| 350 g_return_val_if_fail(srvc != NULL, SEARCH_ERROR); | |
| 351 g_return_val_if_fail(handler != NULL, SEARCH_ERROR); | |
| 352 | |
| 353 count = g_list_length(queries); | |
| 354 g_return_val_if_fail(count > 0, SEARCH_ERROR); | |
| 355 | |
| 356 search = search_new(srvc, handler, data, cleanup); | |
| 357 | |
| 358 b = mwPutBuffer_new(); | |
| 359 guint32_put(b, 0x00); /* to be overwritten */ | |
| 360 guint32_put(b, search->id); | |
| 361 guint32_put(b, count); | |
| 362 for(; queries; queries = queries->next) | |
| 363 mwString_put(b, queries->data); | |
| 364 guint32_put(b, flags); | |
| 365 | |
| 366 mwPutBuffer_finalize(&o, b); | |
| 367 | |
| 368 ret = mwChannel_send(srvc->channel, RESOLVE_ACTION, &o); | |
| 369 if(ret) { | |
| 370 search_free(search); | |
| 371 return SEARCH_ERROR; | |
| 372 | |
| 373 } else { | |
| 374 g_hash_table_insert(srvc->searches, | |
| 375 GUINT_TO_POINTER(search->id), search); | |
| 376 return search->id; | |
| 377 } | |
| 378 } | |
| 379 | |
| 380 | |
| 381 void mwServiceResolve_cancelResolve(struct mwServiceResolve *srvc, | |
| 382 guint32 id) { | |
| 383 | |
| 384 g_return_if_fail(srvc != NULL); | |
| 385 g_return_if_fail(srvc->searches != NULL); | |
| 386 | |
| 387 g_hash_table_remove(srvc->searches, GUINT_TO_POINTER(id)); | |
| 388 } | |
| 389 |
