exchange_api_post-batch-deposit.c (26579B)
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 { 564 struct GNUNET_JSON_Specification spec[] = { 565 GNUNET_JSON_spec_fixed_auto ( 566 "h_payto", 567 &dr->details.unavailable_for_legal_reasons.h_payto), 568 GNUNET_JSON_spec_uint64 ( 569 "requirement_row", 570 &dr->details.unavailable_for_legal_reasons.requirement_row), 571 GNUNET_JSON_spec_bool ( 572 "bad_kyc_auth", 573 &dr->details.unavailable_for_legal_reasons.bad_kyc_auth), 574 GNUNET_JSON_spec_end () 575 }; 576 577 if (GNUNET_OK != 578 GNUNET_JSON_parse (j, 579 spec, 580 NULL, NULL)) 581 { 582 GNUNET_break_op (0); 583 dr->hr.http_status = 0; 584 dr->hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; 585 break; 586 } 587 } 588 break; 589 case MHD_HTTP_INTERNAL_SERVER_ERROR: 590 dr->hr.ec = TALER_JSON_get_error_code (j); 591 dr->hr.hint = TALER_JSON_get_error_hint (j); 592 /* Server had an internal issue; we should retry, but this API 593 leaves this to the application */ 594 break; 595 default: 596 /* unexpected response code */ 597 dr->hr.ec = TALER_JSON_get_error_code (j); 598 dr->hr.hint = TALER_JSON_get_error_hint (j); 599 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 600 "Unexpected response code %u/%d for exchange deposit\n", 601 (unsigned int) response_code, 602 dr->hr.ec); 603 GNUNET_break_op (0); 604 break; 605 } 606 if (NULL != dh->ai_head) 607 return; 608 finish_dh (dh); 609 } 610 611 612 struct TALER_EXCHANGE_PostBatchDepositHandle * 613 TALER_EXCHANGE_post_batch_deposit_create ( 614 struct GNUNET_CURL_Context *ctx, 615 const char *url, 616 struct TALER_EXCHANGE_Keys *keys, 617 const struct TALER_EXCHANGE_DepositContractDetail *dcd, 618 unsigned int num_cdds, 619 const struct TALER_EXCHANGE_CoinDepositDetail cdds[static num_cdds], 620 enum TALER_ErrorCode *ec) 621 { 622 struct TALER_EXCHANGE_PostBatchDepositHandle *dh; 623 json_t *deposits; 624 const struct GNUNET_HashCode *wallet_data_hashp; 625 626 if (0 == num_cdds) 627 { 628 GNUNET_break (0); 629 *ec = TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; 630 return NULL; 631 } 632 if (GNUNET_TIME_timestamp_cmp (dcd->refund_deadline, 633 >, 634 dcd->wire_deadline)) 635 { 636 GNUNET_break_op (0); 637 *ec = TALER_EC_EXCHANGE_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE; 638 return NULL; 639 } 640 dh = GNUNET_new (struct TALER_EXCHANGE_PostBatchDepositHandle); 641 dh->auditor_chance = AUDITOR_CHANCE; 642 dh->ctx = ctx; 643 dh->base_url = GNUNET_strdup (url); 644 dh->cdds = GNUNET_memdup (cdds, 645 num_cdds * sizeof (*cdds)); 646 dh->num_cdds = num_cdds; 647 dh->dcd = *dcd; 648 if (NULL != dcd->policy_details) 649 TALER_deposit_policy_hash (dcd->policy_details, 650 &dh->h_policy); 651 TALER_merchant_wire_signature_hash (dcd->merchant_payto_uri, 652 &dcd->wire_salt, 653 &dh->h_wire); 654 deposits = json_array (); 655 GNUNET_assert (NULL != deposits); 656 GNUNET_assert (GNUNET_OK == 657 TALER_amount_set_zero (cdds[0].amount.currency, 658 &dh->total_without_fee)); 659 for (unsigned int i = 0; i<num_cdds; i++) 660 { 661 const struct TALER_EXCHANGE_CoinDepositDetail *cdd = &cdds[i]; 662 const struct TALER_EXCHANGE_DenomPublicKey *dki; 663 const struct TALER_AgeCommitmentHashP *h_age_commitmentp; 664 struct TALER_Amount amount_without_fee; 665 666 dki = TALER_EXCHANGE_get_denomination_key_by_hash (keys, 667 &cdd->h_denom_pub); 668 if (NULL == dki) 669 { 670 *ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN; 671 GNUNET_break_op (0); 672 json_decref (deposits); 673 GNUNET_free (dh->base_url); 674 GNUNET_free (dh->cdds); 675 GNUNET_free (dh); 676 return NULL; 677 } 678 if (0 > 679 TALER_amount_subtract (&amount_without_fee, 680 &cdd->amount, 681 &dki->fees.deposit)) 682 { 683 *ec = TALER_EC_EXCHANGE_DEPOSIT_FEE_ABOVE_AMOUNT; 684 GNUNET_break_op (0); 685 json_decref (deposits); 686 GNUNET_free (dh->base_url); 687 GNUNET_free (dh->cdds); 688 GNUNET_free (dh); 689 return NULL; 690 } 691 GNUNET_assert (0 <= 692 TALER_amount_add (&dh->total_without_fee, 693 &dh->total_without_fee, 694 &amount_without_fee)); 695 if (GNUNET_OK != 696 TALER_EXCHANGE_verify_deposit_signature_ (dcd, 697 &dh->h_policy, 698 &dh->h_wire, 699 cdd, 700 dki)) 701 { 702 *ec = TALER_EC_EXCHANGE_DEPOSIT_COIN_SIGNATURE_INVALID; 703 GNUNET_break_op (0); 704 json_decref (deposits); 705 GNUNET_free (dh->base_url); 706 GNUNET_free (dh->cdds); 707 GNUNET_free (dh); 708 return NULL; 709 } 710 if (! GNUNET_is_zero (&dcd->merchant_sig)) 711 { 712 /* FIXME #9185: check merchant_sig!? */ 713 } 714 if (GNUNET_is_zero (&cdd->h_age_commitment)) 715 h_age_commitmentp = NULL; 716 else 717 h_age_commitmentp = &cdd->h_age_commitment; 718 GNUNET_assert ( 719 0 == 720 json_array_append_new ( 721 deposits, 722 GNUNET_JSON_PACK ( 723 TALER_JSON_pack_amount ("contribution", 724 &cdd->amount), 725 GNUNET_JSON_pack_data_auto ("denom_pub_hash", 726 &cdd->h_denom_pub), 727 TALER_JSON_pack_denom_sig ("ub_sig", 728 &cdd->denom_sig), 729 GNUNET_JSON_pack_data_auto ("coin_pub", 730 &cdd->coin_pub), 731 GNUNET_JSON_pack_allow_null ( 732 GNUNET_JSON_pack_data_auto ("h_age_commitment", 733 h_age_commitmentp)), 734 GNUNET_JSON_pack_data_auto ("coin_sig", 735 &cdd->coin_sig) 736 ))); 737 } 738 739 if (GNUNET_is_zero (&dcd->wallet_data_hash)) 740 wallet_data_hashp = NULL; 741 else 742 wallet_data_hashp = &dcd->wallet_data_hash; 743 dh->deposit_obj = GNUNET_JSON_PACK ( 744 TALER_JSON_pack_full_payto ("merchant_payto_uri", 745 dcd->merchant_payto_uri), 746 GNUNET_JSON_pack_allow_null ( 747 GNUNET_JSON_pack_string ("extra_wire_subject_metadata", 748 dcd->extra_wire_subject_metadata)), 749 GNUNET_JSON_pack_data_auto ("wire_salt", 750 &dcd->wire_salt), 751 GNUNET_JSON_pack_data_auto ("h_contract_terms", 752 &dcd->h_contract_terms), 753 GNUNET_JSON_pack_array_steal ("coins", 754 deposits), 755 GNUNET_JSON_pack_allow_null ( 756 GNUNET_JSON_pack_data_auto ("wallet_data_hash", 757 wallet_data_hashp)), 758 GNUNET_JSON_pack_allow_null ( 759 GNUNET_JSON_pack_object_steal ("policy_details", 760 (json_t *) dcd->policy_details)), 761 GNUNET_JSON_pack_timestamp ("timestamp", 762 dcd->wallet_timestamp), 763 GNUNET_JSON_pack_data_auto ("merchant_pub", 764 &dcd->merchant_pub), 765 GNUNET_JSON_pack_data_auto ("merchant_sig", 766 &dcd->merchant_sig), 767 GNUNET_JSON_pack_allow_null ( 768 GNUNET_JSON_pack_timestamp ("refund_deadline", 769 dcd->refund_deadline)), 770 GNUNET_JSON_pack_timestamp ("wire_transfer_deadline", 771 dcd->wire_deadline)); 772 if (NULL == dh->deposit_obj) 773 { 774 GNUNET_break (0); 775 *ec = TALER_EC_GENERIC_ALLOCATION_FAILURE; 776 GNUNET_free (dh->base_url); 777 GNUNET_free (dh->cdds); 778 GNUNET_free (dh); 779 return NULL; 780 } 781 dh->keys = TALER_EXCHANGE_keys_incref (keys); 782 *ec = TALER_EC_NONE; 783 return dh; 784 } 785 786 787 void 788 TALER_EXCHANGE_post_batch_deposit_force_dc ( 789 struct TALER_EXCHANGE_PostBatchDepositHandle *pbdh) 790 { 791 // FIXME: turn this into an option! 792 pbdh->auditor_chance = 1; 793 } 794 795 796 enum TALER_ErrorCode 797 TALER_EXCHANGE_post_batch_deposit_start ( 798 struct TALER_EXCHANGE_PostBatchDepositHandle *pbdh, 799 TALER_EXCHANGE_PostBatchDepositCallback cb, 800 TALER_EXCHANGE_POST_BATCH_DEPOSIT_RESULT_CLOSURE *cb_cls) 801 { 802 CURL *eh; 803 804 pbdh->cb = cb; 805 pbdh->cb_cls = cb_cls; 806 pbdh->url = TALER_url_join (pbdh->base_url, 807 "batch-deposit", 808 NULL); 809 if (NULL == pbdh->url) 810 { 811 GNUNET_break (0); 812 return TALER_EC_GENERIC_ALLOCATION_FAILURE; 813 } 814 eh = TALER_EXCHANGE_curl_easy_get_ (pbdh->url); 815 if ( (NULL == eh) || 816 (GNUNET_OK != 817 TALER_curl_easy_post (&pbdh->post_ctx, 818 eh, 819 pbdh->deposit_obj)) ) 820 { 821 GNUNET_break (0); 822 if (NULL != eh) 823 curl_easy_cleanup (eh); 824 return TALER_EC_GENERIC_CURL_ALLOCATION_FAILURE; 825 } 826 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 827 "URL for batch-deposit: `%s'\n", 828 pbdh->url); 829 pbdh->job = GNUNET_CURL_job_add2 (pbdh->ctx, 830 eh, 831 pbdh->post_ctx.headers, 832 &handle_deposit_finished, 833 pbdh); 834 if (NULL == pbdh->job) 835 return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; 836 return TALER_EC_NONE; 837 } 838 839 840 void 841 TALER_EXCHANGE_post_batch_deposit_cancel ( 842 struct TALER_EXCHANGE_PostBatchDepositHandle *pbdh) 843 { 844 struct TEAH_AuditorInteractionEntry *aie; 845 846 while (NULL != (aie = pbdh->ai_head)) 847 { 848 GNUNET_assert (aie->dh == pbdh); 849 GNUNET_log (GNUNET_ERROR_TYPE_INFO, 850 "Not sending deposit confirmation to auditor `%s' due to cancellation\n", 851 aie->auditor_url); 852 TALER_AUDITOR_deposit_confirmation_cancel (aie->dch); 853 GNUNET_CONTAINER_DLL_remove (pbdh->ai_head, 854 pbdh->ai_tail, 855 aie); 856 GNUNET_free (aie); 857 } 858 if (NULL != pbdh->job) 859 { 860 GNUNET_CURL_job_cancel (pbdh->job); 861 pbdh->job = NULL; 862 } 863 TALER_EXCHANGE_keys_decref (pbdh->keys); 864 GNUNET_free (pbdh->base_url); 865 GNUNET_free (pbdh->url); 866 GNUNET_free (pbdh->cdds); 867 TALER_curl_easy_post_finished (&pbdh->post_ctx); 868 json_decref (pbdh->deposit_obj); 869 json_decref (pbdh->response); 870 GNUNET_free (pbdh); 871 } 872 873 874 /* end of exchange_api_post-batch-deposit.c */