exchange_api_post-batch-deposit.c (26360B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2014-2026 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see 15 <http://www.gnu.org/licenses/> 16 */ 17 /** 18 * @file lib/exchange_api_post-batch-deposit.c 19 * @brief Implementation of the /batch-deposit request of the exchange's HTTP API 20 * @author Sree Harsha Totakura <sreeharsha@totakura.in> 21 * @author Christian Grothoff 22 */ 23 #include "taler/platform.h" 24 #include <jansson.h> 25 #include <microhttpd.h> /* just for HTTP status codes */ 26 #include <gnunet/gnunet_util_lib.h> 27 #include <gnunet/gnunet_json_lib.h> 28 #include <gnunet/gnunet_curl_lib.h> 29 #include "taler/taler_json_lib.h" 30 #include "taler/taler_auditor_service.h" 31 #include "taler/taler_exchange_service.h" 32 #include "exchange_api_common.h" 33 #include "exchange_api_handle.h" 34 #include "taler/taler_signatures.h" 35 #include "exchange_api_curl_defaults.h" 36 37 38 /** 39 * 1:#AUDITOR_CHANCE is the probability that we report deposits 40 * to the auditor. 41 * 42 * 20==5% of going to auditor. This is possibly still too high, but set 43 * deliberately this high for testing 44 */ 45 #define AUDITOR_CHANCE 20 46 47 48 /** 49 * Entry in list of ongoing interactions with an auditor. 50 */ 51 struct TEAH_AuditorInteractionEntry 52 { 53 /** 54 * DLL entry. 55 */ 56 struct TEAH_AuditorInteractionEntry *next; 57 58 /** 59 * DLL entry. 60 */ 61 struct TEAH_AuditorInteractionEntry *prev; 62 63 /** 64 * URL of our auditor. For logging. 65 */ 66 const char *auditor_url; 67 68 /** 69 * Interaction state. 70 */ 71 struct TALER_AUDITOR_DepositConfirmationHandle *dch; 72 73 /** 74 * Batch deposit this is for. 75 */ 76 struct TALER_EXCHANGE_PostBatchDepositHandle *dh; 77 }; 78 79 80 /** 81 * @brief A Batch Deposit Handle 82 */ 83 struct TALER_EXCHANGE_PostBatchDepositHandle 84 { 85 86 /** 87 * The keys of the exchange. 88 */ 89 struct TALER_EXCHANGE_Keys *keys; 90 91 /** 92 * Context for our curl request(s). 93 */ 94 struct GNUNET_CURL_Context *ctx; 95 96 /** 97 * The base URL of the exchange (used to build the endpoint URL in _start). 98 */ 99 char *base_url; 100 101 /** 102 * The full endpoint URL for this request (built in _start). 103 */ 104 char *url; 105 106 /** 107 * Context for #TEH_curl_easy_post(). Keeps the data that must 108 * persist for Curl to make the upload. 109 */ 110 struct TALER_CURL_PostContext post_ctx; 111 112 /** 113 * Handle for the request. 114 */ 115 struct GNUNET_CURL_Job *job; 116 117 /** 118 * Function to call with the result. 119 */ 120 TALER_EXCHANGE_PostBatchDepositCallback cb; 121 122 /** 123 * Closure for @a cb. 124 */ 125 void *cb_cls; 126 127 /** 128 * Details about the contract. 129 */ 130 struct TALER_EXCHANGE_DepositContractDetail dcd; 131 132 /** 133 * Array with details about the coins. 134 */ 135 struct TALER_EXCHANGE_CoinDepositDetail *cdds; 136 137 /** 138 * Hash of the merchant's wire details. 139 */ 140 struct TALER_MerchantWireHashP h_wire; 141 142 /** 143 * Hash over the extensions, or all zero. 144 */ 145 struct TALER_ExtensionPolicyHashP h_policy; 146 147 /** 148 * Time when this confirmation was generated / when the exchange received 149 * the deposit request. 150 */ 151 struct GNUNET_TIME_Timestamp exchange_timestamp; 152 153 /** 154 * Exchange signature, set for #auditor_cb. 155 */ 156 struct TALER_ExchangeSignatureP exchange_sig; 157 158 /** 159 * Head of DLL of interactions with this auditor. 160 */ 161 struct TEAH_AuditorInteractionEntry *ai_head; 162 163 /** 164 * Tail of DLL of interactions with this auditor. 165 */ 166 struct TEAH_AuditorInteractionEntry *ai_tail; 167 168 /** 169 * Result to return to the application once @e ai_head is empty. 170 */ 171 struct TALER_EXCHANGE_PostBatchDepositResponse dr; 172 173 /** 174 * Exchange signing public key, set for #auditor_cb. 175 */ 176 struct TALER_ExchangePublicKeyP exchange_pub; 177 178 /** 179 * Total amount deposited without fees as calculated by us. 180 */ 181 struct TALER_Amount total_without_fee; 182 183 /** 184 * Response object to free at the end. 185 */ 186 json_t *response; 187 188 /** 189 * The JSON body to POST (built during _create, used during _start). 190 */ 191 json_t *deposit_obj; 192 193 /** 194 * Chance that we will inform the auditor about the deposit 195 * is 1:n, where the value of this field is "n". 196 */ 197 unsigned int auditor_chance; 198 199 /** 200 * Length of the @e cdds array. 201 */ 202 unsigned int num_cdds; 203 204 }; 205 206 207 /** 208 * Finish batch deposit operation by calling the callback. 209 * 210 * @param[in] dh handle to finished batch deposit operation 211 */ 212 static void 213 finish_dh (struct TALER_EXCHANGE_PostBatchDepositHandle *dh) 214 { 215 dh->cb (dh->cb_cls, 216 &dh->dr); 217 TALER_EXCHANGE_post_batch_deposit_cancel (dh); 218 } 219 220 221 /** 222 * Function called with the result from our call to the 223 * auditor's /deposit-confirmation handler. 224 * 225 * @param cls closure of type `struct TEAH_AuditorInteractionEntry *` 226 * @param dcr response 227 */ 228 static void 229 acc_confirmation_cb ( 230 void *cls, 231 const struct TALER_AUDITOR_DepositConfirmationResponse *dcr) 232 { 233 struct TEAH_AuditorInteractionEntry *aie = cls; 234 struct TALER_EXCHANGE_PostBatchDepositHandle *dh = aie->dh; 235 236 if (MHD_HTTP_OK != dcr->hr.http_status) 237 { 238 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, 239 "Failed to submit deposit confirmation to auditor `%s' with HTTP status %d (EC: %d). This is acceptable if it does not happen often.\n", 240 aie->auditor_url, 241 dcr->hr.http_status, 242 dcr->hr.ec); 243 } 244 GNUNET_CONTAINER_DLL_remove (dh->ai_head, 245 dh->ai_tail, 246 aie); 247 GNUNET_free (aie); 248 if (NULL == dh->ai_head) 249 finish_dh (dh); 250 } 251 252 253 /** 254 * Function called for each auditor to give us a chance to possibly 255 * launch a deposit confirmation interaction. 256 * 257 * @param cls closure 258 * @param auditor_url base URL of the auditor 259 * @param auditor_pub public key of the auditor 260 */ 261 static void 262 auditor_cb (void *cls, 263 const char *auditor_url, 264 const struct TALER_AuditorPublicKeyP *auditor_pub) 265 { 266 struct TALER_EXCHANGE_PostBatchDepositHandle *dh = cls; 267 const struct TALER_EXCHANGE_SigningPublicKey *spk; 268 struct TEAH_AuditorInteractionEntry *aie; 269 const struct TALER_CoinSpendSignatureP *csigs[GNUNET_NZL ( 270 dh->num_cdds)]; 271 const struct TALER_CoinSpendPublicKeyP *cpubs[GNUNET_NZL ( 272 dh->num_cdds)]; 273 274 for (unsigned int i = 0; i<dh->num_cdds; i++) 275 { 276 const struct TALER_EXCHANGE_CoinDepositDetail *cdd = &dh->cdds[i]; 277 278 csigs[i] = &cdd->coin_sig; 279 cpubs[i] = &cdd->coin_pub; 280 } 281 282 if (0 != 283 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 284 dh->auditor_chance)) 285 { 286 GNUNET_log (GNUNET_ERROR_TYPE_INFO, 287 "Not providing deposit confirmation to auditor\n"); 288 return; 289 } 290 GNUNET_log (GNUNET_ERROR_TYPE_INFO, 291 "Will provide deposit confirmation to auditor `%s'\n", 292 TALER_B2S (auditor_pub)); 293 spk = TALER_EXCHANGE_get_signing_key_info (dh->keys, 294 &dh->exchange_pub); 295 if (NULL == spk) 296 { 297 GNUNET_break_op (0); 298 return; 299 } 300 aie = GNUNET_new (struct TEAH_AuditorInteractionEntry); 301 aie->dh = dh; 302 aie->auditor_url = auditor_url; 303 aie->dch = TALER_AUDITOR_deposit_confirmation ( 304 dh->ctx, 305 auditor_url, 306 &dh->h_wire, 307 &dh->h_policy, 308 &dh->dcd.h_contract_terms, 309 dh->exchange_timestamp, 310 dh->dcd.wire_deadline, 311 dh->dcd.refund_deadline, 312 &dh->total_without_fee, 313 dh->num_cdds, 314 cpubs, 315 csigs, 316 &dh->dcd.merchant_pub, 317 &dh->exchange_pub, 318 &dh->exchange_sig, 319 &dh->keys->master_pub, 320 spk->valid_from, 321 spk->valid_until, 322 spk->valid_legal, 323 &spk->master_sig, 324 &acc_confirmation_cb, 325 aie); 326 if (NULL == aie->dch) 327 { 328 GNUNET_break (0); 329 GNUNET_free (aie); 330 return; 331 } 332 GNUNET_CONTAINER_DLL_insert (dh->ai_head, 333 dh->ai_tail, 334 aie); 335 } 336 337 338 /** 339 * Function called when we're done processing the 340 * HTTP /batch-deposit request. 341 * 342 * @param cls the `struct TALER_EXCHANGE_PostBatchDepositHandle` 343 * @param response_code HTTP response code, 0 on error 344 * @param response parsed JSON result, NULL on error 345 */ 346 static void 347 handle_deposit_finished (void *cls, 348 long response_code, 349 const void *response) 350 { 351 struct TALER_EXCHANGE_PostBatchDepositHandle *dh = cls; 352 const json_t *j = response; 353 struct TALER_EXCHANGE_PostBatchDepositResponse *dr = &dh->dr; 354 355 dh->job = NULL; 356 dh->response = json_incref ((json_t*) j); 357 dr->hr.reply = dh->response; 358 dr->hr.http_status = (unsigned int) response_code; 359 switch (response_code) 360 { 361 case 0: 362 dr->hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE; 363 break; 364 case MHD_HTTP_OK: 365 { 366 bool prev33; 367 struct GNUNET_JSON_Specification spec[] = { 368 GNUNET_JSON_spec_fixed_auto ("exchange_sig", 369 &dh->exchange_sig), 370 GNUNET_JSON_spec_fixed_auto ("exchange_pub", 371 &dh->exchange_pub), 372 GNUNET_JSON_spec_mark_optional ( 373 TALER_JSON_spec_amount ( 374 "accumulated_total_without_fee", 375 dh->total_without_fee.currency, 376 &dr->details.ok.accumulated_total_without_fee), 377 &prev33), 378 GNUNET_JSON_spec_mark_optional ( 379 TALER_JSON_spec_web_url ("transaction_base_url", 380 &dr->details.ok.transaction_base_url), 381 NULL), 382 GNUNET_JSON_spec_timestamp ("exchange_timestamp", 383 &dh->exchange_timestamp), 384 GNUNET_JSON_spec_end () 385 }; 386 387 if (GNUNET_OK != 388 GNUNET_JSON_parse (j, 389 spec, 390 NULL, NULL)) 391 { 392 GNUNET_break_op (0); 393 dr->hr.http_status = 0; 394 dr->hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; 395 break; 396 } 397 if (GNUNET_OK != 398 TALER_EXCHANGE_test_signing_key (dh->keys, 399 &dh->exchange_pub)) 400 { 401 GNUNET_break_op (0); 402 dr->hr.http_status = 0; 403 dr->hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE; 404 break; 405 } 406 if (prev33) 407 dr->details.ok.accumulated_total_without_fee 408 = dh->total_without_fee; 409 if (1 == 410 TALER_amount_cmp (&dh->total_without_fee, 411 &dr->details.ok.accumulated_total_without_fee)) 412 { 413 /* Amount signed by exchange is SMALLER than what we deposited */ 414 GNUNET_break_op (0); 415 dr->hr.http_status = 0; 416 dr->hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE; 417 break; 418 } 419 { 420 const struct TALER_CoinSpendSignatureP *csigs[ 421 GNUNET_NZL (dh->num_cdds)]; 422 423 for (unsigned int i = 0; i<dh->num_cdds; i++) 424 csigs[i] = &dh->cdds[i].coin_sig; 425 if (GNUNET_OK != 426 TALER_exchange_online_deposit_confirmation_verify ( 427 &dh->dcd.h_contract_terms, 428 &dh->h_wire, 429 &dh->h_policy, 430 dh->exchange_timestamp, 431 dh->dcd.wire_deadline, 432 dh->dcd.refund_deadline, 433 &dr->details.ok.accumulated_total_without_fee, 434 dh->num_cdds, 435 csigs, 436 &dh->dcd.merchant_pub, 437 &dh->exchange_pub, 438 &dh->exchange_sig)) 439 { 440 GNUNET_break_op (0); 441 dr->hr.http_status = 0; 442 dr->hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE; 443 break; 444 } 445 } 446 dh->total_without_fee = dr->details.ok.accumulated_total_without_fee; 447 TALER_EXCHANGE_get_auditors_for_dc_ (dh->keys, 448 &auditor_cb, 449 dh); 450 } 451 dr->details.ok.exchange_sig = &dh->exchange_sig; 452 dr->details.ok.exchange_pub = &dh->exchange_pub; 453 dr->details.ok.deposit_timestamp = dh->exchange_timestamp; 454 break; 455 case MHD_HTTP_BAD_REQUEST: 456 /* This should never happen, either us or the exchange is buggy 457 (or API version conflict); just pass JSON reply to the application */ 458 dr->hr.ec = TALER_JSON_get_error_code (j); 459 dr->hr.hint = TALER_JSON_get_error_hint (j); 460 break; 461 case MHD_HTTP_FORBIDDEN: 462 dr->hr.ec = TALER_JSON_get_error_code (j); 463 dr->hr.hint = TALER_JSON_get_error_hint (j); 464 /* Nothing really to verify, exchange says one of the signatures is 465 invalid; as we checked them, this should never happen, we 466 should pass the JSON reply to the application */ 467 break; 468 case MHD_HTTP_NOT_FOUND: 469 dr->hr.ec = TALER_JSON_get_error_code (j); 470 dr->hr.hint = TALER_JSON_get_error_hint (j); 471 /* Nothing really to verify, this should never 472 happen, we should pass the JSON reply to the application */ 473 break; 474 case MHD_HTTP_CONFLICT: 475 { 476 dr->hr.ec = TALER_JSON_get_error_code (j); 477 dr->hr.hint = TALER_JSON_get_error_hint (j); 478 switch (dr->hr.ec) 479 { 480 case TALER_EC_EXCHANGE_GENERIC_INSUFFICIENT_FUNDS: 481 { 482 struct GNUNET_JSON_Specification spec[] = { 483 GNUNET_JSON_spec_fixed_auto ( 484 "coin_pub", 485 &dr->details.conflict.details 486 .insufficient_funds.coin_pub), 487 GNUNET_JSON_spec_end () 488 }; 489 490 if (GNUNET_OK != 491 GNUNET_JSON_parse (j, 492 spec, 493 NULL, NULL)) 494 { 495 GNUNET_break_op (0); 496 dr->hr.http_status = 0; 497 dr->hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; 498 break; 499 } 500 } 501 break; 502 case TALER_EC_EXCHANGE_GENERIC_COIN_CONFLICTING_AGE_HASH: 503 { 504 struct GNUNET_JSON_Specification spec[] = { 505 GNUNET_JSON_spec_fixed_auto ( 506 "coin_pub", 507 &dr->details.conflict.details 508 .coin_conflicting_age_hash.coin_pub), 509 GNUNET_JSON_spec_end () 510 }; 511 512 if (GNUNET_OK != 513 GNUNET_JSON_parse (j, 514 spec, 515 NULL, NULL)) 516 { 517 GNUNET_break_op (0); 518 dr->hr.http_status = 0; 519 dr->hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; 520 break; 521 } 522 } 523 break; 524 case TALER_EC_EXCHANGE_GENERIC_COIN_CONFLICTING_DENOMINATION_KEY: 525 { 526 struct GNUNET_JSON_Specification spec[] = { 527 GNUNET_JSON_spec_fixed_auto ( 528 "coin_pub", 529 &dr->details.conflict.details 530 .coin_conflicting_denomination_key.coin_pub), 531 GNUNET_JSON_spec_end () 532 }; 533 534 if (GNUNET_OK != 535 GNUNET_JSON_parse (j, 536 spec, 537 NULL, NULL)) 538 { 539 GNUNET_break_op (0); 540 dr->hr.http_status = 0; 541 dr->hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; 542 break; 543 } 544 } 545 break; 546 case TALER_EC_EXCHANGE_DEPOSIT_CONFLICTING_CONTRACT: 547 break; 548 default: 549 GNUNET_break_op (0); 550 break; 551 } 552 } 553 break; 554 case MHD_HTTP_GONE: 555 /* could happen if denomination was revoked */ 556 /* Note: one might want to check /keys for revocation 557 signature here, alas tricky in case our /keys 558 is outdated => left to clients */ 559 dr->hr.ec = TALER_JSON_get_error_code (j); 560 dr->hr.hint = TALER_JSON_get_error_hint (j); 561 break; 562 case MHD_HTTP_UNAVAILABLE_FOR_LEGAL_REASONS: 563 dr->hr.ec = TALER_JSON_get_error_code (j); 564 dr->hr.hint = TALER_JSON_get_error_hint (j); 565 if (GNUNET_OK != 566 TALER_EXCHANGE_parse_451 (&dr->details.unavailable_for_legal_reasons, 567 j)) 568 { 569 GNUNET_break_op (0); 570 dr->hr.http_status = 0; 571 dr->hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; 572 break; 573 } 574 break; 575 case MHD_HTTP_INTERNAL_SERVER_ERROR: 576 dr->hr.ec = TALER_JSON_get_error_code (j); 577 dr->hr.hint = TALER_JSON_get_error_hint (j); 578 /* Server had an internal issue; we should retry, but this API 579 leaves this to the application */ 580 break; 581 default: 582 /* unexpected response code */ 583 dr->hr.ec = TALER_JSON_get_error_code (j); 584 dr->hr.hint = TALER_JSON_get_error_hint (j); 585 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 586 "Unexpected response code %u/%d for exchange deposit\n", 587 (unsigned int) response_code, 588 dr->hr.ec); 589 GNUNET_break_op (0); 590 break; 591 } 592 if (NULL != dh->ai_head) 593 return; 594 finish_dh (dh); 595 } 596 597 598 struct TALER_EXCHANGE_PostBatchDepositHandle * 599 TALER_EXCHANGE_post_batch_deposit_create ( 600 struct GNUNET_CURL_Context *ctx, 601 const char *url, 602 struct TALER_EXCHANGE_Keys *keys, 603 const struct TALER_EXCHANGE_DepositContractDetail *dcd, 604 unsigned int num_cdds, 605 const struct TALER_EXCHANGE_CoinDepositDetail cdds[static num_cdds], 606 enum TALER_ErrorCode *ec) 607 { 608 struct TALER_EXCHANGE_PostBatchDepositHandle *dh; 609 json_t *deposits; 610 const struct GNUNET_HashCode *wallet_data_hashp; 611 612 if (0 == num_cdds) 613 { 614 GNUNET_break (0); 615 *ec = TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; 616 return NULL; 617 } 618 if (GNUNET_TIME_timestamp_cmp (dcd->refund_deadline, 619 >, 620 dcd->wire_deadline)) 621 { 622 GNUNET_break_op (0); 623 *ec = TALER_EC_EXCHANGE_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE; 624 return NULL; 625 } 626 dh = GNUNET_new (struct TALER_EXCHANGE_PostBatchDepositHandle); 627 dh->auditor_chance = AUDITOR_CHANCE; 628 dh->ctx = ctx; 629 dh->base_url = GNUNET_strdup (url); 630 dh->cdds = GNUNET_memdup (cdds, 631 num_cdds * sizeof (*cdds)); 632 dh->num_cdds = num_cdds; 633 dh->dcd = *dcd; 634 if (NULL != dcd->policy_details) 635 TALER_deposit_policy_hash (dcd->policy_details, 636 &dh->h_policy); 637 TALER_merchant_wire_signature_hash (dcd->merchant_payto_uri, 638 &dcd->wire_salt, 639 &dh->h_wire); 640 deposits = json_array (); 641 GNUNET_assert (NULL != deposits); 642 GNUNET_assert (GNUNET_OK == 643 TALER_amount_set_zero (cdds[0].amount.currency, 644 &dh->total_without_fee)); 645 for (unsigned int i = 0; i<num_cdds; i++) 646 { 647 const struct TALER_EXCHANGE_CoinDepositDetail *cdd = &cdds[i]; 648 const struct TALER_EXCHANGE_DenomPublicKey *dki; 649 const struct TALER_AgeCommitmentHashP *h_age_commitmentp; 650 struct TALER_Amount amount_without_fee; 651 652 dki = TALER_EXCHANGE_get_denomination_key_by_hash (keys, 653 &cdd->h_denom_pub); 654 if (NULL == dki) 655 { 656 *ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN; 657 GNUNET_break_op (0); 658 json_decref (deposits); 659 GNUNET_free (dh->base_url); 660 GNUNET_free (dh->cdds); 661 GNUNET_free (dh); 662 return NULL; 663 } 664 if (0 > 665 TALER_amount_subtract (&amount_without_fee, 666 &cdd->amount, 667 &dki->fees.deposit)) 668 { 669 *ec = TALER_EC_EXCHANGE_DEPOSIT_FEE_ABOVE_AMOUNT; 670 GNUNET_break_op (0); 671 json_decref (deposits); 672 GNUNET_free (dh->base_url); 673 GNUNET_free (dh->cdds); 674 GNUNET_free (dh); 675 return NULL; 676 } 677 GNUNET_assert (0 <= 678 TALER_amount_add (&dh->total_without_fee, 679 &dh->total_without_fee, 680 &amount_without_fee)); 681 if (GNUNET_OK != 682 TALER_EXCHANGE_verify_deposit_signature_ (dcd, 683 &dh->h_policy, 684 &dh->h_wire, 685 cdd, 686 dki)) 687 { 688 *ec = TALER_EC_EXCHANGE_DEPOSIT_COIN_SIGNATURE_INVALID; 689 GNUNET_break_op (0); 690 json_decref (deposits); 691 GNUNET_free (dh->base_url); 692 GNUNET_free (dh->cdds); 693 GNUNET_free (dh); 694 return NULL; 695 } 696 if (! GNUNET_is_zero (&dcd->merchant_sig)) 697 { 698 /* FIXME #9185: check merchant_sig!? */ 699 } 700 if (GNUNET_is_zero (&cdd->h_age_commitment)) 701 h_age_commitmentp = NULL; 702 else 703 h_age_commitmentp = &cdd->h_age_commitment; 704 GNUNET_assert ( 705 0 == 706 json_array_append_new ( 707 deposits, 708 GNUNET_JSON_PACK ( 709 TALER_JSON_pack_amount ("contribution", 710 &cdd->amount), 711 GNUNET_JSON_pack_data_auto ("denom_pub_hash", 712 &cdd->h_denom_pub), 713 TALER_JSON_pack_denom_sig ("ub_sig", 714 &cdd->denom_sig), 715 GNUNET_JSON_pack_data_auto ("coin_pub", 716 &cdd->coin_pub), 717 GNUNET_JSON_pack_allow_null ( 718 GNUNET_JSON_pack_data_auto ("h_age_commitment", 719 h_age_commitmentp)), 720 GNUNET_JSON_pack_data_auto ("coin_sig", 721 &cdd->coin_sig) 722 ))); 723 } 724 725 if (GNUNET_is_zero (&dcd->wallet_data_hash)) 726 wallet_data_hashp = NULL; 727 else 728 wallet_data_hashp = &dcd->wallet_data_hash; 729 dh->deposit_obj = GNUNET_JSON_PACK ( 730 TALER_JSON_pack_full_payto ("merchant_payto_uri", 731 dcd->merchant_payto_uri), 732 GNUNET_JSON_pack_allow_null ( 733 GNUNET_JSON_pack_string ("extra_wire_subject_metadata", 734 dcd->extra_wire_subject_metadata)), 735 GNUNET_JSON_pack_data_auto ("wire_salt", 736 &dcd->wire_salt), 737 GNUNET_JSON_pack_data_auto ("h_contract_terms", 738 &dcd->h_contract_terms), 739 GNUNET_JSON_pack_array_steal ("coins", 740 deposits), 741 GNUNET_JSON_pack_allow_null ( 742 GNUNET_JSON_pack_data_auto ("wallet_data_hash", 743 wallet_data_hashp)), 744 GNUNET_JSON_pack_allow_null ( 745 GNUNET_JSON_pack_object_steal ("policy", 746 (json_t *) dcd->policy_details)), 747 GNUNET_JSON_pack_timestamp ("timestamp", 748 dcd->wallet_timestamp), 749 GNUNET_JSON_pack_data_auto ("merchant_pub", 750 &dcd->merchant_pub), 751 GNUNET_JSON_pack_data_auto ("merchant_sig", 752 &dcd->merchant_sig), 753 GNUNET_JSON_pack_allow_null ( 754 GNUNET_JSON_pack_timestamp ("refund_deadline", 755 dcd->refund_deadline)), 756 GNUNET_JSON_pack_timestamp ("wire_transfer_deadline", 757 dcd->wire_deadline)); 758 if (NULL == dh->deposit_obj) 759 { 760 GNUNET_break (0); 761 *ec = TALER_EC_GENERIC_ALLOCATION_FAILURE; 762 GNUNET_free (dh->base_url); 763 GNUNET_free (dh->cdds); 764 GNUNET_free (dh); 765 return NULL; 766 } 767 dh->keys = TALER_EXCHANGE_keys_incref (keys); 768 *ec = TALER_EC_NONE; 769 return dh; 770 } 771 772 773 void 774 TALER_EXCHANGE_post_batch_deposit_force_dc ( 775 struct TALER_EXCHANGE_PostBatchDepositHandle *pbdh) 776 { 777 // FIXME: turn this into an option! 778 pbdh->auditor_chance = 1; 779 } 780 781 782 enum TALER_ErrorCode 783 TALER_EXCHANGE_post_batch_deposit_start ( 784 struct TALER_EXCHANGE_PostBatchDepositHandle *pbdh, 785 TALER_EXCHANGE_PostBatchDepositCallback cb, 786 TALER_EXCHANGE_POST_BATCH_DEPOSIT_RESULT_CLOSURE *cb_cls) 787 { 788 CURL *eh; 789 790 pbdh->cb = cb; 791 pbdh->cb_cls = cb_cls; 792 pbdh->url = TALER_url_join (pbdh->base_url, 793 "batch-deposit", 794 NULL); 795 if (NULL == pbdh->url) 796 { 797 GNUNET_break (0); 798 return TALER_EC_GENERIC_ALLOCATION_FAILURE; 799 } 800 eh = TALER_EXCHANGE_curl_easy_get_ (pbdh->url); 801 if ( (NULL == eh) || 802 (GNUNET_OK != 803 TALER_curl_easy_post (&pbdh->post_ctx, 804 eh, 805 pbdh->deposit_obj)) ) 806 { 807 GNUNET_break (0); 808 if (NULL != eh) 809 curl_easy_cleanup (eh); 810 return TALER_EC_GENERIC_CURL_ALLOCATION_FAILURE; 811 } 812 /* Help debug #11305 */ 813 GNUNET_assert (CURLE_OK == 814 curl_easy_setopt (eh, 815 CURLOPT_VERBOSE, 816 1)); 817 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 818 "URL for batch-deposit: `%s'\n", 819 pbdh->url); 820 pbdh->job = GNUNET_CURL_job_add2 (pbdh->ctx, 821 eh, 822 pbdh->post_ctx.headers, 823 &handle_deposit_finished, 824 pbdh); 825 if (NULL == pbdh->job) 826 return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; 827 return TALER_EC_NONE; 828 } 829 830 831 void 832 TALER_EXCHANGE_post_batch_deposit_cancel ( 833 struct TALER_EXCHANGE_PostBatchDepositHandle *pbdh) 834 { 835 struct TEAH_AuditorInteractionEntry *aie; 836 837 while (NULL != (aie = pbdh->ai_head)) 838 { 839 GNUNET_assert (aie->dh == pbdh); 840 GNUNET_log (GNUNET_ERROR_TYPE_INFO, 841 "Not sending deposit confirmation to auditor `%s' due to cancellation\n", 842 aie->auditor_url); 843 TALER_AUDITOR_deposit_confirmation_cancel (aie->dch); 844 GNUNET_CONTAINER_DLL_remove (pbdh->ai_head, 845 pbdh->ai_tail, 846 aie); 847 GNUNET_free (aie); 848 } 849 if (NULL != pbdh->job) 850 { 851 GNUNET_CURL_job_cancel (pbdh->job); 852 pbdh->job = NULL; 853 } 854 TALER_EXCHANGE_keys_decref (pbdh->keys); 855 GNUNET_free (pbdh->base_url); 856 GNUNET_free (pbdh->url); 857 GNUNET_free (pbdh->cdds); 858 TALER_curl_easy_post_finished (&pbdh->post_ctx); 859 json_decref (pbdh->deposit_obj); 860 json_decref (pbdh->response); 861 GNUNET_free (pbdh); 862 } 863 864 865 /* end of exchange_api_post-batch-deposit.c */