source/carddav2/carddav2.cpp

   1 // CardDAV2.cpp - CardDAV v2 class
   2 //
   3 // (c) 2012-2016 Xestia Software Development.
   4 //
   5 // This file is part of Xestia Address Book.
   6 //
   7 // Xestia Address Book is free software: you can redistribute it and/or modify
   8 // it under the terms of the GNU General Public License as published by the
   9 // Free Software Foundation, version 3 of the license.
  10 //
  11 // Xestia Address Book 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
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with Xestia Address Book. If not, see <http://www.gnu.org/licenses/>
  18
  19 #include "carddav2.h"
  20
  21 #include <iostream>
  22
  23 using namespace std;
  24
  25 size_t CardDAV2::WritebackFunc(char *ptr, size_t size, size_t nmemb, void *stream){
  26
  27         return static_cast<CardDAV2*>(stream)->WritebackFuncImplementation(ptr, size, nmemb, stream);
  28
  29 }
  30
  31 size_t CardDAV2::WritebackFuncImplementation(char *ptr, size_t size, size_t nmemb, void *stream){
  32
  33         // Writeback function for the CardDAV object.
  34
  35         string *data = static_cast<string*>(stream);
  36         data->append(ptr);
  37
  38         // Get the SSL engine pointer and trust if required on certain operating systems.
  39
  40         if (ServerSSL){
  41
  42 #if defined(__APPLE__)
  43
  44                 const struct curl_tlssessioninfo *TLSInfo;
  45                 CURLcode TLSCode;
  46                 CURL *Connection = GetConnectionObject();
  47                 TLSCode = curl_easy_getinfo(Connection, CURLINFO_TLS_SSL_PTR, &TLSInfo);
  48
  49                 if (TLSInfo->internals != nullptr && TLSCode == CURLE_OK){
  50                         SSLCopyPeerTrust((SSLContext*)TLSInfo->internals, &SecTrustObject);
  51                 }
  52
  53 #elif defined(__WIN32__)
  54
  55                 const struct curl_tlssessioninfo *TLSInfo;
  56                 CURLcode TLSCode;
  57                 CURL *Connection = GetConnectionObject();
  58                 TLSCode = curl_easy_getinfo(Connection, CURLINFO_TLS_SSL_PTR, &TLSInfo);
  59
  60                 if (TLSInfo->internals != nullptr && TLSCode == CURLE_OK){
  61
  62                         // Free the previous certificate data.
  63
  64                         CertFreeCertificateContext(CertificateData);
  65
  66                         PCtxtHandle SSLHandle = (PCtxtHandle)TLSInfo->internals;
  67                         SECURITY_STATUS GetData = QueryContextAttributes(SSLHandle, SECPKG_ATTR_REMOTE_CERT_CONTEXT, &CertificateData);
  68
  69                 }
  70
  71 #endif
  72
  73         }
  74
  75         return size * nmemb;
  76
  77 }
  78
  79 CardDAV2::~CardDAV2(){
  80
  81         curl_easy_cleanup(ConnectionSession);
  82         ConnectionSession = nullptr;
  83
  84         if (HeaderList != nullptr){
  85                 curl_slist_free_all(HeaderList);
  86                 HeaderList = nullptr;
  87         }
  88
  89 }
  90
  91 #if defined(__APPLE__)
  92
  93 #elif defined(__WIN32__)
  94
  95 #else
  96
  97 SSLCertCollectionString CardDAV2::BuildSSLCollection(){
  98
  99         // Build and return the SSL collection.
 100
 101         SSLCertCollectionString SSLCertInfo;
 102
 103         // Grab the certificate data.
 104
 105         union {
 106                 struct curl_slist *certdata;
 107                 struct curl_certinfo *certinfo;
 108         } certptr;
 109
 110         certptr.certdata = NULL;
 111
 112         curl_easy_getinfo(ConnectionSession, CURLINFO_CERTINFO, &certptr.certinfo);
 113
 114         std::string CertPropName;
 115         std::string CertPropValue;
 116
 117         for (int i = 0; i < certptr.certinfo->num_of_certs; i++){
 118
 119                 struct curl_slist *slist;
 120                 SSLCertDataString SSLCertDataInc;
 121
 122                 for (slist = certptr.certinfo->certinfo[i]; slist; slist = slist->next){
 123
 124                         // Using wxStringTokenizer from wxWidgets.
 125
 126                         wxStringTokenizer CertDataInc(wxString::FromUTF8(slist->data), ":");
 127
 128                         // Get first token as the property name.
 129
 130                         CertPropName = CertDataInc.GetNextToken().ToStdString();
 131
 132                         // Get remaining tokens as the property value.
 133
 134                         while(CertDataInc.HasMoreTokens()){
 135
 136                                 CertPropValue.append(CertDataInc.GetNextToken());
 137
 138                         }
 139
 140                         SSLCertDataInc.CertData.insert(std::make_pair(CertPropName, CertPropValue));
 141                         CertPropName.clear();
 142                         CertPropValue.clear();
 143
 144                 }
 145
 146                 SSLCertInfo.SSLCollection.insert(std::make_pair(i, SSLCertDataInc));
 147
 148         }
 149
 150         return SSLCertInfo;
 151
 152 }
 153
 154 void CardDAV2::BypassSSLVerification(bool EnableBypass){
 155         EnableSSLBypass = EnableBypass;
 156         SSLSelfSigned = EnableBypass;
 157 }
 158
 159 #endif
 160
 161 void CardDAV2::SetupConnectionObject(){
 162         ConnectionSession = curl_easy_init();
 163 }
 164
 165 bool CardDAV2::IsTaskCompleted(){
 166         return false;
 167 }
 168
 169 COConnectResult CardDAV2::Connect(bool DoAuthentication){
 170
 171         ServerSSL ? SetupDefaultParametersSSL(DoAuthentication) : SetupDefaultParametersNonSSL(DoAuthentication);
 172         ResetResults();
 173
 174         COConnectResult ConnectResult = COCONNECT_UNITTESTFAIL;
 175         string ServerAddressURL = BuildURL("/principals/");
 176
 177         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
 178
 179         if (TestMode == true){
 180                 SessionResult = curl_easy_perform(ConnectionSession);
 181         } else {
 182                 SessionResult = curl_easy_perform(ConnectionSession);
 183         }
 184
 185         switch(SessionResult){
 186                 case CURLE_OK:
 187                 case CURLE_HTTP_RETURNED_ERROR:
 188                         SSLStatus = true;
 189                         SSLVerified = COSSL_VERIFIED;
 190                         ConnectResult = COCONNECT_OK;
 191                         break;
 192                 case CURLE_SSL_CACERT:
 193                 case CURLE_SSL_CONNECT_ERROR:
 194                         SSLStatus = true;
 195                         ConnectResult = COCONNECT_OK;
 196                         SSLVerified = COSSL_UNABLETOVERIFY;
 197                         break;
 198                 default:
 199                         ConnectResult = COCONNECT_INVALID;
 200                         break;
 201         };
 202
 203         // Check if an error occured before continuing.
 204
 205         // Check if authentication was successful.
 206
 207         long SessionResponseCode = 0;
 208
 209         curl_easy_getinfo(ConnectionSession, CURLINFO_RESPONSE_CODE, &SessionResponseCode);
 210
 211         if (DoAuthentication == true){
 212
 213                 // Get the HTTP status code (Should be 200 and not 403).
 214                 // Return error otherwise.
 215
 216                 if (SessionResponseCode == 200){
 217                         ConnectResult = COCONNECT_OK;
 218                         AuthPassed = true;
 219                         ValidResponse = true;
 220                 } else if (SessionResponseCode == 401){
 221                         ConnectResult = COCONNECT_AUTHFAIL;
 222                         AuthPassed = false;
 223                         ValidResponse = true;
 224                 } else if (SessionResponseCode >= 200) {
 225                         ConnectResult = COCONNECT_INVALID;
 226                         AuthPassed = false;
 227                         ValidResponse = true;
 228                 } else {
 229                         ConnectResult = COCONNECT_INVALID;
 230                         AuthPassed = false;
 231                         ValidResponse = false;
 232                 }
 233
 234         } else {
 235
 236                 ValidResponse = true;
 237
 238         }
 239
 240         // Check the header to see if CardDAV is supported.
 241
 242         vector<string> DAVHeaderValues = GetDAVHeader();
 243
 244         for (vector<string>::iterator DAVHeaderValuesIter = DAVHeaderValues.begin();
 245                 DAVHeaderValuesIter != DAVHeaderValues.end(); DAVHeaderValuesIter++){
 246
 247                 if ((*DAVHeaderValuesIter) == "addressbook"){
 248                         CanProcess = true;
 249                         break;
 250                 }
 251
 252         }
 253
 254         return ConnectResult;
 255
 256 }
 257
 258 COServerResponse CardDAV2::GetDefaultPrefix(string *ServerPrefix){
 259
 260         // Check if authentication was successful, otherwise don't do anything.
 261
 262         COServerResponse ServerResponse;
 263
 264         if (AuthPassed == false){
 265                 ServerResponse.RequestResult = COREQUEST_ERROR_NOTCONNECTED;
 266                 ServerResponse.EntityTag = "";
 267                 ServerResponse.SessionCode = 0;
 268                 ServerResponse.ResultCode = 0;
 269                 ServerResponse.ResultMessage = "";
 270                 return ServerResponse;
 271         }
 272
 273         ServerSSL ? SetupDefaultParametersSSL(true) : SetupDefaultParametersNonSSL(true);
 274         ResetResults();
 275
 276         // Need to do three requests:
 277
 278         // 1. Get the current user principal URI.
 279         // 2. Get the address book home URI.
 280         // 3. Get the default address book URI.
 281
 282         // Setup the first query finding out where the principal URL is.
 283
 284         const char* CurrentUserPrincipalXMLQuery = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
 285                 "<D:propfind xmlns:D=\"DAV:\">\n"
 286                 " <D:prop>"
 287                 "  <D:current-user-principal/>\n"
 288                 " </D:prop>"
 289                 "</D:propfind>";
 290
 291         // Setup the second query finding out where the address book home URL is.
 292
 293         const char* AddressBookHomeXMLQuery = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
 294         "<D:propfind xmlns:D=\"DAV:\""
 295         "  xmlns:C=\"urn:ietf:params:xml:ns:carddav\">\n"
 296         "  <D:prop>\n"
 297         "    <C:addressbook-home-set/>\n"
 298         "  </D:prop>\n"
 299         "</D:propfind>";
 300
 301         // Setup the third query finding out where the default address book URL is.
 302
 303         const char* DefaultAddressBookXMLQuery = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
 304         "<D:propfind xmlns:D=\"DAV:\""
 305         "  xmlns:C=\"urn:ietf:params:xml:ns:carddav\">\n"
 306         "  <D:prop>\n"
 307         "    <C:default-addressbook-URL/>\n"
 308         "  </D:prop>\n"
 309         "</D:propfind>";
 310
 311         string ServerAddressURL = BuildURL("/principals/");
 312         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
 313         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "PROPFIND");
 314         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDS, CurrentUserPrincipalXMLQuery);
 315         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDSIZE, strlen(CurrentUserPrincipalXMLQuery));
 316
 317         if (TestMode == true){
 318                 SessionResult = curl_easy_perform(ConnectionSession);
 319         } else {
 320
 321         }
 322
 323         switch(SessionResult){
 324                 case CURLE_OK:
 325                         SSLStatus = true;
 326                         SSLVerified = COSSL_VERIFIED;
 327                         break;
 328                 case CURLE_SSL_CACERT:
 329                 case CURLE_SSL_CONNECT_ERROR:
 330                         SSLStatus = true;
 331                         SSLVerified = COSSL_UNABLETOVERIFY;
 332                         break;
 333                 default:
 334                         break;
 335         };
 336
 337         long SessionResponseCode = 0;
 338
 339         curl_easy_getinfo(ConnectionSession, CURLINFO_RESPONSE_CODE, &SessionResponseCode);
 340
 341         if (SessionResponseCode == 200 || SessionResponseCode == 207){
 342                 AuthPassed = true;
 343                 ValidResponse = true;
 344         } else if (SessionResponseCode == 403){
 345                 AuthPassed = false;
 346                 ValidResponse = true;
 347         } else if (SessionResponseCode >= 400) {
 348                 AuthPassed = false;
 349                 ValidResponse = true;
 350         } else {
 351                 AuthPassed = false;
 352                 ValidResponse = false;
 353         }
 354
 355         if (ValidResponse == false && AuthPassed == false){
 356                 ServerResponse.RequestResult = COREQUEST_ERROR_SERVER;
 357                 ServerResponse.EntityTag = "";
 358                 ServerResponse.SessionCode = SessionResult;
 359                 ServerResponse.ResultCode = SessionResponseCode;
 360                 ServerResponse.ResultMessage = "";
 361                 return ServerResponse;
 362         }
 363
 364         // Process the first response.
 365
 366         string UserPrincipalURI = GetUserPrincipalURI();
 367
 368         // Cleanup and reset for the second connection.
 369
 370         ServerSSL ? SetupDefaultParametersSSL(true) : SetupDefaultParametersNonSSL(true);
 371         ResetResults();
 372
 373         ServerAddressURL = BuildURL(UserPrincipalURI);
 374         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
 375         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "PROPFIND");
 376         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDS, AddressBookHomeXMLQuery);
 377         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDSIZE, strlen(AddressBookHomeXMLQuery));
 378
 379         if (TestMode == true){
 380                 SessionResult = curl_easy_perform(ConnectionSession);
 381         } else {
 382
 383         }
 384
 385         switch(SessionResult){
 386                 case CURLE_OK:
 387                         SSLStatus = true;
 388                         SSLVerified = COSSL_VERIFIED;
 389                         break;
 390                 case CURLE_SSL_CACERT:
 391                 case CURLE_SSL_CONNECT_ERROR:
 392                         SSLStatus = true;
 393                         SSLVerified = COSSL_UNABLETOVERIFY;
 394                         break;
 395                 default:
 396                         break;
 397         };
 398
 399         SessionResponseCode = 0;
 400
 401         curl_easy_getinfo(ConnectionSession, CURLINFO_RESPONSE_CODE, &SessionResponseCode);
 402
 403         if (SessionResponseCode == 200 || SessionResponseCode == 207){
 404                 AuthPassed = true;
 405                 ValidResponse = true;
 406         } else if (SessionResponseCode == 403){
 407                 AuthPassed = false;
 408                 ValidResponse = true;
 409         } else if (SessionResponseCode >= 400) {
 410                 AuthPassed = false;
 411                 ValidResponse = true;
 412         } else {
 413                 AuthPassed = false;
 414                 ValidResponse = false;
 415         }
 416
 417         if (ValidResponse == false && AuthPassed == false){
 418                 ServerResponse.RequestResult = COREQUEST_ERROR_SERVER;
 419                 ServerResponse.EntityTag = "";
 420                 ServerResponse.SessionCode = SessionResult;
 421                 ServerResponse.ResultCode = SessionResponseCode;
 422                 ServerResponse.ResultMessage = "";
 423                 return ServerResponse;
 424         }
 425
 426         // Process the second response.
 427
 428         string AddressBookHomeURI = GetAddressBookHomeURI();
 429
 430         // Cleanup and reset for the second connection.
 431
 432         ServerSSL ? SetupDefaultParametersSSL(true) : SetupDefaultParametersNonSSL(true);
 433         ResetResults();
 434
 435         ServerAddressURL = BuildURL(AddressBookHomeURI);
 436         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
 437         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "PROPFIND");
 438         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDS, DefaultAddressBookXMLQuery);
 439         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDSIZE, strlen(DefaultAddressBookXMLQuery));
 440
 441         if (TestMode == true){
 442                 SessionResult = curl_easy_perform(ConnectionSession);
 443         } else {
 444
 445         }
 446
 447         switch(SessionResult){
 448                 case CURLE_OK:
 449                         SSLStatus = true;
 450                         SSLVerified = COSSL_VERIFIED;
 451                         break;
 452                 case CURLE_SSL_CACERT:
 453                 case CURLE_SSL_CONNECT_ERROR:
 454                         SSLStatus = true;
 455                         SSLVerified = COSSL_UNABLETOVERIFY;
 456                         break;
 457                 default:
 458                         break;
 459         };
 460
 461         SessionResponseCode = 0;
 462
 463         curl_easy_getinfo(ConnectionSession, CURLINFO_RESPONSE_CODE, &SessionResponseCode);
 464
 465         if (SessionResponseCode == 200 || SessionResponseCode == 207){
 466                 AuthPassed = true;
 467                 ValidResponse = true;
 468         } else if (SessionResponseCode == 403){
 469                 AuthPassed = false;
 470                 ValidResponse = true;
 471         } else if (SessionResponseCode >= 200) {
 472                 AuthPassed = false;
 473                 ValidResponse = true;
 474         } else {
 475                 AuthPassed = false;
 476                 ValidResponse = false;
 477         }
 478
 479         if (ValidResponse == false && AuthPassed == false){
 480                 ServerResponse.RequestResult = COREQUEST_ERROR_SERVER;
 481                 ServerResponse.EntityTag = "";
 482                 ServerResponse.SessionCode = SessionResult;
 483                 ServerResponse.ResultCode = SessionResponseCode;
 484                 ServerResponse.ResultMessage = "";
 485                 return ServerResponse;
 486         }
 487
 488         // Process the second response.
 489
 490         (*ServerPrefix) = GetDefaultAddressBookURI();
 491
 492         CanProcess = true;
 493
 494         ServerResponse.RequestResult = COREQUEST_OK;
 495         ServerResponse.EntityTag = "";
 496         ServerResponse.SessionCode = SessionResult;
 497         ServerResponse.ResultCode = SessionResponseCode;
 498         ServerResponse.ResultMessage = SessionErrorBuffer;
 499         return ServerResponse;
 500
 501 }
 502
 503 std::string CardDAV2::GetUserPrincipalURI(){
 504
 505         xmlDocPtr xmlCardDAVDoc;
 506         xmlCardDAVDoc = xmlReadMemory(PageData.c_str(), (int)PageData.size(), "noname.xml", NULL, 0);
 507         string UserPrincipalURI = "";
 508
 509         xmlNodePtr nodeLevel1;
 510         xmlNodePtr nodeLevel2;
 511         xmlNodePtr nodeLevel3;
 512         xmlNodePtr nodeLevel4;
 513         xmlNodePtr nodeLevel5;
 514         xmlNodePtr nodeLevel6;
 515         xmlNodePtr nodeLevel7;
 516
 517         for (nodeLevel1 = xmlCardDAVDoc->children;
 518                 nodeLevel1 != NULL;
 519                 nodeLevel1 = nodeLevel1->next)
 520         {
 521
 522                 for (nodeLevel2 = nodeLevel1->children;
 523                         nodeLevel2 != NULL;
 524                         nodeLevel2 = nodeLevel2->next)
 525                 {
 526
 527
 528                         for (nodeLevel3 = nodeLevel2->children;
 529                         nodeLevel3 != NULL;
 530                         nodeLevel3 = nodeLevel3->next)
 531                         {
 532
 533                                 for (nodeLevel4 = nodeLevel3->children;
 534                                 nodeLevel4 != NULL;
 535                                 nodeLevel4 = nodeLevel4->next)
 536                                 {
 537
 538                                         for (nodeLevel5 = nodeLevel4->children;
 539                                         nodeLevel5 != NULL;
 540                                         nodeLevel5 = nodeLevel5->next)
 541                                         {
 542
 543                                                 for (nodeLevel6 = nodeLevel5->children;
 544                                                 nodeLevel6 != NULL;
 545                                                 nodeLevel6 = nodeLevel6->next)
 546                                                 {
 547
 548                                                         if (!xmlStrcmp(nodeLevel6->name, (const xmlChar *)"href") ||
 549                                                         !xmlStrcmp(nodeLevel6->name, (const xmlChar *)"d:href") ||
 550                                                         !xmlStrcmp(nodeLevel6->name, (const xmlChar *)"D:href")
 551                                                         ){
 552
 553                                                                 // Found the <href> part so extract the principal URL address.
 554
 555                                                                 for (nodeLevel7 = nodeLevel6->children;
 556                                                                 nodeLevel7 != NULL;
 557                                                                 nodeLevel7 = nodeLevel7->next)
 558                                                                 {
 559
 560                                                                         UserPrincipalURI = ((const char*)nodeLevel7->content);
 561
 562                                                                 }
 563
 564                                                         }
 565
 566                                                 }
 567
 568                                         }
 569
 570                                 }
 571
 572                         }
 573
 574                 }
 575
 576         }
 577
 578         xmlFreeDoc(xmlCardDAVDoc);
 579
 580         return UserPrincipalURI;
 581
 582 }
 583
 584 std::string CardDAV2::GetAddressBookHomeURI(){
 585
 586         xmlDocPtr xmlCardDAVDoc;
 587         xmlCardDAVDoc = xmlReadMemory(PageData.c_str(), (int)PageData.size(), "noname.xml", NULL, 0);
 588         string AddressBookHomeURI = "";
 589
 590         xmlNodePtr nodeLevel1;
 591         xmlNodePtr nodeLevel2;
 592         xmlNodePtr nodeLevel3;
 593         xmlNodePtr nodeLevel4;
 594         xmlNodePtr nodeLevel5;
 595         xmlNodePtr nodeLevel6;
 596         xmlNodePtr nodeLevel7;
 597
 598         for (nodeLevel1 = xmlCardDAVDoc->children;
 599                 nodeLevel1 != NULL;
 600                 nodeLevel1 = nodeLevel1->next)
 601         {
 602
 603                 for (nodeLevel2 = nodeLevel1->children;
 604                         nodeLevel2 != NULL;
 605                         nodeLevel2 = nodeLevel2->next)
 606                 {
 607
 608
 609                         for (nodeLevel3 = nodeLevel2->children;
 610                         nodeLevel3 != NULL;
 611                         nodeLevel3 = nodeLevel3->next)
 612                         {
 613
 614                                 for (nodeLevel4 = nodeLevel3->children;
 615                                 nodeLevel4 != NULL;
 616                                 nodeLevel4 = nodeLevel4->next)
 617                                 {
 618
 619                                         for (nodeLevel5 = nodeLevel4->children;
 620                                         nodeLevel5 != NULL;
 621                                         nodeLevel5 = nodeLevel5->next)
 622                                         {
 623
 624                                                 for (nodeLevel6 = nodeLevel5->children;
 625                                                 nodeLevel6 != NULL;
 626                                                 nodeLevel6 = nodeLevel6->next)
 627                                                 {
 628
 629                                                         if (!xmlStrcmp(nodeLevel6->name, (const xmlChar *)"href") ||
 630                                                         !xmlStrcmp(nodeLevel6->name, (const xmlChar *)"d:href") ||
 631                                                         !xmlStrcmp(nodeLevel6->name, (const xmlChar *)"D:href")
 632                                                         ){
 633
 634                                                                 // Found the <href> part so extract the principal URL address.
 635
 636                                                                 for (nodeLevel7 = nodeLevel6->children;
 637                                                                 nodeLevel7 != NULL;
 638                                                                 nodeLevel7 = nodeLevel7->next)
 639                                                                 {
 640
 641                                                                         AddressBookHomeURI = ((const char*)nodeLevel7->content);
 642
 643                                                                 }
 644
 645                                                         }
 646
 647                                                 }
 648
 649                                         }
 650
 651                                 }
 652
 653                         }
 654
 655                 }
 656
 657         }
 658
 659         xmlFreeDoc(xmlCardDAVDoc);
 660
 661         return AddressBookHomeURI;
 662
 663 }
 664
 665 std::string CardDAV2::GetDefaultAddressBookURI(){
 666
 667         xmlDocPtr xmlCardDAVDoc;
 668         xmlCardDAVDoc = xmlReadMemory(PageData.c_str(), (int)PageData.size(), "noname.xml", NULL, 0);
 669         string DefaultAddressBookURI = "";
 670
 671         xmlNodePtr nodeLevel1;
 672         xmlNodePtr nodeLevel2;
 673         xmlNodePtr nodeLevel3;
 674         xmlNodePtr nodeLevel4;
 675         xmlNodePtr nodeLevel5;
 676         xmlNodePtr nodeLevel6;
 677         xmlNodePtr nodeLevel7;
 678
 679         for (nodeLevel1 = xmlCardDAVDoc->children;
 680                 nodeLevel1 != NULL;
 681                 nodeLevel1 = nodeLevel1->next)
 682         {
 683
 684                 for (nodeLevel2 = nodeLevel1->children;
 685                         nodeLevel2 != NULL;
 686                         nodeLevel2 = nodeLevel2->next)
 687                 {
 688
 689
 690                         for (nodeLevel3 = nodeLevel2->children;
 691                         nodeLevel3 != NULL;
 692                         nodeLevel3 = nodeLevel3->next)
 693                         {
 694
 695                                 for (nodeLevel4 = nodeLevel3->children;
 696                                 nodeLevel4 != NULL;
 697                                 nodeLevel4 = nodeLevel4->next)
 698                                 {
 699
 700                                         for (nodeLevel5 = nodeLevel4->children;
 701                                         nodeLevel5 != NULL;
 702                                         nodeLevel5 = nodeLevel5->next)
 703                                         {
 704
 705                                                 for (nodeLevel6 = nodeLevel5->children;
 706                                                 nodeLevel6 != NULL;
 707                                                 nodeLevel6 = nodeLevel6->next)
 708                                                 {
 709
 710                                                         if (!xmlStrcmp(nodeLevel6->name, (const xmlChar *)"href") ||
 711                                                         !xmlStrcmp(nodeLevel6->name, (const xmlChar *)"d:href") ||
 712                                                         !xmlStrcmp(nodeLevel6->name, (const xmlChar *)"D:href")
 713                                                         ){
 714
 715                                                                 // Found the <href> part so extract the principal URL address.
 716
 717                                                                 for (nodeLevel7 = nodeLevel6->children;
 718                                                                 nodeLevel7 != NULL;
 719                                                                 nodeLevel7 = nodeLevel7->next)
 720                                                                 {
 721
 722                                                                         DefaultAddressBookURI = ((const char*)nodeLevel7->content);
 723
 724                                                                 }
 725
 726                                                         }
 727
 728                                                 }
 729
 730                                         }
 731
 732                                 }
 733
 734                         }
 735
 736                 }
 737
 738         }
 739
 740         xmlFreeDoc(xmlCardDAVDoc);
 741
 742         return DefaultAddressBookURI;
 743
 744 }
 745
 746 COServerResponse CardDAV2::AddContact(std::string Location, std::string Data){
 747
 748         // Check if authentication was successful, otherwise don't do anything.
 749
 750         COServerResponse ServerResponse;
 751
 752         if (AuthPassed == false){
 753                 ServerResponse.RequestResult = COREQUEST_ERROR_NOTCONNECTED;
 754                 ServerResponse.EntityTag = "";
 755                 ServerResponse.SessionCode = 0;
 756                 ServerResponse.ResultCode = 0;
 757                 ServerResponse.ResultMessage = "";
 758                 return ServerResponse;
 759         }
 760
 761         ServerSSL ? SetupDefaultParametersSSL(true) : SetupDefaultParametersNonSSL(true);
 762         ResetResults();
 763
 764         string ServerAddressURL = BuildURL(ServerPrefix + Location);
 765         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
 766         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "PUT");
 767         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDS, Data.c_str());
 768         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDSIZE, strlen(Data.c_str()));
 769
 770         HeaderList = curl_slist_append(HeaderList, "Content-Type: text/vcard; charset=utf-8");
 771
 772         curl_easy_setopt(ConnectionSession, CURLOPT_HTTPHEADER, HeaderList);
 773
 774         if (TestMode == true){
 775                 SessionResult = curl_easy_perform(ConnectionSession);
 776         } else {
 777                 SessionResult = curl_easy_perform(ConnectionSession);
 778         }
 779
 780         switch(SessionResult){
 781                 case CURLE_OK:
 782                         SSLStatus = true;
 783                         SSLVerified = COSSL_VERIFIED;
 784                         break;
 785                 case CURLE_SSL_CACERT:
 786                 case CURLE_SSL_CONNECT_ERROR:
 787                         SSLStatus = true;
 788                         SSLVerified = COSSL_UNABLETOVERIFY;
 789                         break;
 790                 default:
 791                         break;
 792         };
 793
 794         long SessionResponseCode = 0;
 795
 796         curl_easy_getinfo(ConnectionSession, CURLINFO_RESPONSE_CODE, &SessionResponseCode);
 797
 798         if (SessionResponseCode == 200 || SessionResponseCode == 201 || SessionResponseCode == 204){
 799                 AuthPassed = true;
 800                 ValidResponse = true;
 801         } else if (SessionResponseCode == 403){
 802                 AuthPassed = false;
 803                 ValidResponse = true;
 804         } else if (SessionResponseCode >= 400){
 805                 AuthPassed = false;
 806                 ValidResponse = true;
 807         } else {
 808                 AuthPassed = false;
 809                 ValidResponse = false;
 810         }
 811
 812         if (ValidResponse == false && AuthPassed == false){
 813                 ServerResponse.RequestResult = COREQUEST_ERROR_SERVER;
 814                 ServerResponse.EntityTag = "";
 815                 ServerResponse.SessionCode = SessionResult;
 816                 ServerResponse.ResultCode = SessionResponseCode;
 817                 ServerResponse.ResultMessage = "";
 818                 return ServerResponse;
 819         }
 820
 821         CanProcess = true;
 822
 823         ServerResponse.RequestResult = COREQUEST_OK;
 824         ServerResponse.EntityTag = "";
 825         ServerResponse.SessionCode = SessionResult;
 826         ServerResponse.ResultCode = SessionResponseCode;
 827         ServerResponse.ResultMessage = SessionErrorBuffer;
 828         return ServerResponse;
 829
 830 }
 831
 832 COServerResponse CardDAV2::EditContact(std::string Location, std::string Data){
 833
 834 }
 835
 836 COServerResponse CardDAV2::DeleteContact(std::string Location, std::string EntityTag){
 837
 838 }
 839
 840 COServerResponse CardDAV2::GetServerEntityTagValue(std::string Location){
 841
 842         // Check if authentication was successful, otherwise don't do anything.
 843
 844         COServerResponse ServerResponse;
 845
 846         if (AuthPassed == false){
 847                 ServerResponse.RequestResult = COREQUEST_ERROR_NOTCONNECTED;
 848                 ServerResponse.EntityTag = "";
 849                 ServerResponse.SessionCode = 0;
 850                 ServerResponse.ResultCode = 0;
 851                 ServerResponse.ResultMessage = "";
 852                 return ServerResponse;
 853         }
 854
 855         ServerSSL ? SetupDefaultParametersSSL(true) : SetupDefaultParametersNonSSL(true);
 856         ResetResults();
 857
 858         static const char* GetETagQuery =
 859         "<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
 860         "<C:addressbook-query xmlns:D=\"DAV:\""
 861         "       xmlns:C=\"urn:ietf:params:xml:ns:carddav\">"
 862         "<D:prop><D:getetag/>"
 863         "</D:prop>"
 864         "<C:filter/>"
 865         "</C:addressbook-query>";
 866
 867         string ServerAddressURL = BuildURL(ServerPrefix + Location);
 868         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
 869         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "REPORT");
 870         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDS, GetETagQuery);
 871         curl_easy_setopt(ConnectionSession, CURLOPT_POSTFIELDSIZE, strlen(GetETagQuery));
 872
 873         if (TestMode == true){
 874                 SessionResult = curl_easy_perform(ConnectionSession);
 875         } else {
 876                 SessionResult = curl_easy_perform(ConnectionSession);
 877         }
 878
 879         switch(SessionResult){
 880                 case CURLE_OK:
 881                         SSLStatus = true;
 882                         SSLVerified = COSSL_VERIFIED;
 883                         break;
 884                 case CURLE_SSL_CACERT:
 885                 case CURLE_SSL_CONNECT_ERROR:
 886                         SSLStatus = true;
 887                         SSLVerified = COSSL_UNABLETOVERIFY;
 888                         break;
 889                 default:
 890                         break;
 891         };
 892
 893         long SessionResponseCode = 0;
 894
 895         curl_easy_getinfo(ConnectionSession, CURLINFO_RESPONSE_CODE, &SessionResponseCode);
 896
 897         if (SessionResponseCode == 207){
 898                 AuthPassed = true;
 899                 ValidResponse = true;
 900         } else if (SessionResponseCode == 403){
 901                 AuthPassed = false;
 902                 ValidResponse = true;
 903         } else if (SessionResponseCode >= 400){
 904                 AuthPassed = false;
 905                 ValidResponse = true;
 906         } else {
 907                 AuthPassed = false;
 908                 ValidResponse = false;
 909         }
 910
 911         if (ValidResponse == false && AuthPassed == false){
 912                 ServerResponse.RequestResult = COREQUEST_ERROR_SERVER;
 913                 ServerResponse.EntityTag = "";
 914                 ServerResponse.SessionCode = SessionResult;
 915                 ServerResponse.ResultCode = SessionResponseCode;
 916                 ServerResponse.ResultMessage = "";
 917                 return ServerResponse;
 918         }
 919
 920         CanProcess = true;
 921
 922         ServerResponse.RequestResult = COREQUEST_OK;
 923         ServerResponse.EntityTag = GetETagValue();
 924         ServerResponse.SessionCode = SessionResult;
 925         ServerResponse.ResultCode = SessionResponseCode;
 926         ServerResponse.ResultMessage = SessionErrorBuffer;
 927
 928         return ServerResponse;
 929
 930 }
 931
 932 COServerResponse CardDAV2::GetContact(std::string Location){
 933
 934 }
 935
 936 COContactList CardDAV2::GetContactList(std::string SyncToken){
 937
 938 }
 939
 940 bool CardDAV2::CanDoProcessing(){
 941         return CanProcess;
 942 }
 943
 944 bool CardDAV2::CanDoSSL(){
 945         return SSLStatus;
 946 }
 947
 948 COSSLVerified CardDAV2::SSLVerify(){
 949         return SSLVerified;
 950 }
 951
 952 bool CardDAV2::AbleToLogin(){
 953         return AuthPassed;
 954 }
 955
 956 bool CardDAV2::HasValidResponse(){
 957         return ValidResponse;
 958 }
 959
 960 bool CardDAV2::IsSelfSigned(){
 961         return SSLSelfSigned;
 962 }
 963
 964 void CardDAV2::SetupDefaultParametersNonSSL(bool DoAuthentication){
 965
 966         std::string ServerAddress = "";
 967
 968         string ServerAddressURL = "http://" + ServerAddress + ":" + to_string(ServerPort) + "/";
 969         string UsernamePassword = ServerUser + ":" + ServerPass;
 970
 971         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddress.c_str());
 972         curl_easy_setopt(ConnectionSession, CURLOPT_NOPROGRESS, 1L);
 973         curl_easy_setopt(ConnectionSession, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 974         curl_easy_setopt(ConnectionSession, CURLOPT_TIMEOUT, 60);
 975         curl_easy_setopt(ConnectionSession, CURLOPT_FAILONERROR, true);
 976         curl_easy_setopt(ConnectionSession, CURLOPT_USERAGENT, XSDAB_USERAGENT);
 977         curl_easy_setopt(ConnectionSession, CURLOPT_WRITEFUNCTION, CardDAV2::WritebackFunc);
 978         curl_easy_setopt(ConnectionSession, CURLOPT_WRITEDATA, &PageData);
 979         curl_easy_setopt(ConnectionSession, CURLOPT_WRITEHEADER, &PageHeader);
 980         curl_easy_setopt(ConnectionSession, CURLOPT_NOSIGNAL, 1);
 981         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "GET");
 982         curl_easy_setopt(ConnectionSession, CURLOPT_HTTPHEADER, nullptr);
 983
 984         if (DoAuthentication == true){
 985                 curl_easy_setopt(ConnectionSession, CURLOPT_USERPWD, UsernamePassword.c_str());
 986         } else {
 987                 curl_easy_setopt(ConnectionSession, CURLOPT_USERPWD, ":");
 988         }
 989
 990 }
 991
 992 void CardDAV2::SetupDefaultParametersSSL(bool DoAuthentication){
 993
 994         // Setup the default parameters.
 995
 996         string ServerAddressURL = "https://" + ServerAddress + ":" + to_string(ServerPort) + "/";
 997         string UsernamePassword = ServerUser + ":" + ServerPass;
 998
 999         curl_easy_setopt(ConnectionSession, CURLOPT_URL, ServerAddressURL.c_str());
1000         curl_easy_setopt(ConnectionSession, CURLOPT_NOPROGRESS, 1L);
1001         curl_easy_setopt(ConnectionSession, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
1002         curl_easy_setopt(ConnectionSession, CURLOPT_TIMEOUT, 60);
1003         curl_easy_setopt(ConnectionSession, CURLOPT_FAILONERROR, true);
1004         curl_easy_setopt(ConnectionSession, CURLOPT_USERAGENT, XSDAB_USERAGENT);
1005         curl_easy_setopt(ConnectionSession, CURLOPT_WRITEFUNCTION, CardDAV2::WritebackFunc);
1006         curl_easy_setopt(ConnectionSession, CURLOPT_WRITEDATA, &PageData);
1007         curl_easy_setopt(ConnectionSession, CURLOPT_WRITEHEADER, &PageHeader);
1008         curl_easy_setopt(ConnectionSession, CURLOPT_ERRORBUFFER, SessionErrorBuffer);
1009         curl_easy_setopt(ConnectionSession, CURLOPT_NOSIGNAL, 1);
1010         curl_easy_setopt(ConnectionSession, CURLOPT_CERTINFO, 1);
1011         curl_easy_setopt(ConnectionSession, CURLOPT_VERBOSE, 1);
1012         curl_easy_setopt(ConnectionSession, CURLOPT_CUSTOMREQUEST, "GET");
1013         curl_easy_setopt(ConnectionSession, CURLOPT_HTTPHEADER, nullptr);
1014
1015         if (DoAuthentication == true){
1016                 curl_easy_setopt(ConnectionSession, CURLOPT_USERPWD, UsernamePassword.c_str());
1017         } else {
1018                 curl_easy_setopt(ConnectionSession, CURLOPT_USERPWD, ":");
1019         }
1020
1021         if (EnableSSLBypass == true){
1022                 curl_easy_setopt(ConnectionSession, CURLOPT_SSL_VERIFYHOST, 0);
1023                 curl_easy_setopt(ConnectionSession, CURLOPT_SSL_VERIFYPEER, 0);
1024         } else {
1025                 curl_easy_setopt(ConnectionSession, CURLOPT_SSL_VERIFYHOST, 2);
1026                 curl_easy_setopt(ConnectionSession, CURLOPT_SSL_VERIFYPEER, 1);
1027         }
1028
1029         if (TestMode == false && ServerAccount.size() > 0){
1030
1031                 // Check if the server certificate file exists.
1032
1033                 string CertificateFilename = GetAccountDir(ServerAccount, true);
1034
1035                 if (wxFile::Exists(CertificateFilename)){
1036
1037                         curl_easy_setopt(ConnectionSession, CURLOPT_CAINFO, CertificateFilename.c_str());
1038
1039                 }
1040
1041         }
1042
1043 }
1044
1045 string CardDAV2::BuildURL(string URI){
1046
1047         string ServerAddressURL;
1048
1049         if (SSLStatus == true){
1050                 ServerAddressURL = "https://" + ServerAddress + ":" + to_string(ServerPort) + URI;
1051         } else {
1052                 ServerAddressURL = "https://" + ServerAddress + ":" + to_string(ServerPort) + URI;
1053         }
1054
1055         return ServerAddressURL;
1056
1057 }
1058
1059 string CardDAV2::GetErrorMessage(){
1060
1061         ErrorMessage = SessionErrorBuffer;
1062         return ErrorMessage;
1063
1064 }
1065
1066 void CardDAV2::ResetResults(){
1067
1068         SSLStatus = false;
1069         COSSLVerified SSLVerified = COSSL_NORESULT;
1070         ValidResponse = false;
1071         AuthPassed = false;
1072         CanProcess = false;
1073         SSLSelfSigned = false;
1074         TaskCompleted = false;
1075         ErrorMessage = "";
1076         SessionErrorBuffer[0] = '\0';
1077         PageData = "";
1078         PageHeader = "";
1079         if (HeaderList != nullptr){
1080                 curl_slist_free_all(HeaderList);
1081                 HeaderList = nullptr;
1082         }
1083
1084 }
1085
1086 string CardDAV2::GetETagValue(){
1087
1088         xmlDocPtr xmlCardDAVDoc;
1089
1090         xmlCardDAVDoc = xmlReadMemory(PageData.c_str(), (int)PageData.size(), "noname.xml", NULL, 0);
1091
1092         xmlNodePtr nodeLevel1;
1093         xmlNodePtr nodeLevel2;
1094         xmlNodePtr nodeLevel3;
1095         xmlNodePtr nodeLevel4;
1096         xmlNodePtr nodeLevel5;
1097         xmlNodePtr nodeLevel6;
1098
1099         //std::map<wxString,wxString> xmlDataMap;
1100
1101         std::string DataFilename;
1102         std::string ETagData;
1103
1104         std::string xmlStringSafe;
1105         std::string ETagValue;
1106
1107         // Tranverse through the catacombs of the response to get our ETag for the file.
1108
1109         for (nodeLevel1 = xmlCardDAVDoc->children;
1110                 nodeLevel1 != NULL;
1111                 nodeLevel1 = nodeLevel1->next)
1112         {
1113
1114                 bool HREFFound = FALSE;
1115                 bool ETagFound = FALSE;
1116
1117                 for (nodeLevel2 = nodeLevel1->children;
1118                         nodeLevel2 != NULL;
1119                         nodeLevel2 = nodeLevel2->next)
1120                 {
1121
1122                         for (nodeLevel3 = nodeLevel2->children;
1123                         nodeLevel3 != NULL;
1124                         nodeLevel3 = nodeLevel3->next)
1125                         {
1126
1127                                 if (!xmlStrcmp(nodeLevel3->name, (const xmlChar *)"href") ||
1128                                 !xmlStrcmp(nodeLevel3->name, (const xmlChar *)"d:href") ||
1129                                 !xmlStrcmp(nodeLevel3->name, (const xmlChar *)"D:href")
1130                                 ){
1131
1132                                         // Get the filename.
1133
1134                                         for (nodeLevel4 = nodeLevel3->children;
1135                                         nodeLevel4 != NULL;
1136                                         nodeLevel4 = nodeLevel4->next)
1137                                         {
1138
1139                                                 if (!xmlStrcmp(nodeLevel4->name, (const xmlChar *)"text") ||
1140                                                 !xmlStrcmp(nodeLevel4->name, (const xmlChar *)"d:text") ||
1141                                                 !xmlStrcmp(nodeLevel4->name, (const xmlChar *)"D:text")
1142                                                 ){
1143
1144                                                         DataFilename = wxString::FromUTF8((const char*)nodeLevel4->content);
1145                                                         wxStringTokenizer wSTDFilename(DataFilename, wxT("/"));
1146
1147                                                         while (wSTDFilename.HasMoreTokens()){
1148
1149                                                                 DataFilename = wSTDFilename.GetNextToken().ToStdString();
1150
1151                                                         }
1152
1153                                                         HREFFound = TRUE;
1154
1155                                                 }
1156
1157
1158
1159                                         }
1160
1161                                 } else {
1162
1163                                         for (nodeLevel4 = nodeLevel3->children;
1164                                         nodeLevel4 != NULL;
1165                                         nodeLevel4 = nodeLevel4->next)
1166                                         {
1167
1168                                                         for (nodeLevel5 = nodeLevel4->children;
1169                                                         nodeLevel5 != NULL;
1170                                                         nodeLevel5 = nodeLevel5->next)
1171                                                         {
1172
1173                                                                 if (!xmlStrcmp(nodeLevel5->name, (const xmlChar *)"getetag") ||
1174                                                                 !xmlStrcmp(nodeLevel5->name, (const xmlChar *)"d:getetag") ||
1175                                                                 !xmlStrcmp(nodeLevel5->name, (const xmlChar *)"D:getetag")
1176                                                                 ){
1177
1178                                                                         for (nodeLevel6 = nodeLevel5->children;
1179                                                                         nodeLevel6 != NULL;
1180                                                                         nodeLevel6 = nodeLevel6->next)
1181                                                                         {
1182
1183                                                                                 // Strip the quotes from the ETag.
1184
1185                                                                                 ETagData = (const char*)nodeLevel6->content;
1186                                                                                 if (ETagData[0] == '"' && ETagData[(ETagData.size() - 1)] == '"'){
1187
1188                                                                                         ETagData.erase(0, 1);
1189                                                                                         ETagData.erase((ETagData.size() - 1));
1190
1191                                                                                 }
1192
1193                                                                                 ETagFound = TRUE;
1194
1195                                                                         }
1196
1197                                                                 }
1198
1199                                                         }
1200
1201                                         }
1202
1203                                 }
1204
1205                         }
1206
1207                 }
1208
1209                 if (HREFFound == TRUE && ETagFound == TRUE){
1210
1211                         // Add to the map data.
1212
1213                         ETagValue = ETagData;
1214
1215                         HREFFound = FALSE;
1216                         ETagFound = FALSE;
1217                         break;
1218
1219                 }
1220
1221
1222         }
1223
1224         xmlFreeDoc(xmlCardDAVDoc);
1225
1226         return ETagValue;
1227
1228 }
1229
1230 string CardDAV2::GetETagHeader(){
1231
1232         // Go through each of the lines looking for the
1233         // 'DAV:' section.
1234
1235         string HeaderName;
1236         string HeaderValue;
1237         bool FastForward = false;
1238
1239         for (int HeaderSeek = 0; HeaderSeek < PageHeader.size(); HeaderSeek++){
1240
1241                 if (FastForward == true){
1242
1243                         if (PageHeader[HeaderSeek] == '\n'){
1244                                 FastForward = false;
1245                         }
1246
1247                         continue;
1248
1249                 }
1250
1251                 try {
1252                         PageHeader.substr(HeaderSeek, 5) == "ETag:";
1253                 }
1254
1255                 catch (const out_of_range &oor){
1256                         break;
1257                 }
1258
1259                 if (PageHeader.substr(HeaderSeek, 5) == "ETag:"){
1260
1261                         int CharacterSeek = 5;
1262
1263                         while ((HeaderSeek + CharacterSeek) < PageHeader.size()){
1264
1265                                 if (PageHeader.substr((HeaderSeek + CharacterSeek), 2) == "\r\n"){
1266                                         break;
1267                                 }
1268
1269                                 HeaderValue += PageHeader.substr((HeaderSeek + CharacterSeek), 1);
1270                                 CharacterSeek++;
1271                         }
1272
1273                         break;
1274
1275                 } else {
1276
1277                         FastForward = true;
1278                         continue;
1279
1280                 }
1281
1282                 if (PageHeader[HeaderSeek] == '\n'){
1283                         HeaderName = "";
1284                 }
1285
1286                 //HeaderName += PageHeader.substr(HeaderSeek, 1);
1287
1288         }
1289
1290         // Check for quotation marks at the start and end and strip
1291         // them out.
1292
1293         if (HeaderValue.size() >= 2){
1294
1295                 if (HeaderValue[0] == '"'){
1296                         HeaderValue.erase((HeaderValue.size() - 1));
1297                         HeaderValue.erase(0);
1298                 }
1299
1300         }
1301
1302         return HeaderValue;
1303
1304 }
1305
1306 vector<string> CardDAV2::GetDAVHeader(){
1307
1308         // Go through each of the lines looking for the
1309         // 'DAV:' section.
1310
1311         string HeaderName;
1312         string HeaderValue;
1313         bool FastForward = false;
1314         vector<string> DAVHeaderList;
1315
1316         for (int HeaderSeek = 0; HeaderSeek < PageHeader.size(); HeaderSeek++){
1317
1318                 if (FastForward == true){
1319
1320                         if (PageHeader[HeaderSeek] == '\n'){
1321                                 FastForward = false;
1322                         }
1323
1324                         continue;
1325
1326                 }
1327
1328                 try {
1329                         PageHeader.substr(HeaderSeek, 4) == "DAV:";
1330                 }
1331
1332                 catch (const out_of_range &oor){
1333                         break;
1334                 }
1335
1336                 if (PageHeader.substr(HeaderSeek, 4) == "DAV:"){
1337
1338                         int CharacterSeek = 5;
1339
1340                         while ((HeaderSeek + CharacterSeek) < PageHeader.size()){
1341
1342                                 if (PageHeader.substr((HeaderSeek + CharacterSeek), 2) == "\r\n"){
1343                                         break;
1344                                 }
1345
1346                                 HeaderValue += PageHeader.substr((HeaderSeek + CharacterSeek), 1);
1347                                 CharacterSeek++;
1348                         }
1349
1350                         break;
1351
1352                 } else {
1353
1354                         FastForward = true;
1355                         continue;
1356
1357                 }
1358
1359                 if (PageHeader[HeaderSeek] == '\n'){
1360                         HeaderName = "";
1361                 }
1362
1363                 //HeaderName += PageHeader.substr(HeaderSeek, 1);
1364
1365         }
1366
1367         // Split the header data.
1368
1369         std::string DAVHeaderValue;
1370
1371         for (int HeaderSeek = 0; HeaderSeek < HeaderValue.size(); HeaderSeek++){
1372
1373                 if (HeaderValue.substr(HeaderSeek, 1) == ","){
1374                         DAVHeaderList.push_back(DAVHeaderValue);
1375                         DAVHeaderValue = "";
1376                         HeaderSeek++;
1377                         continue;
1378                 }
1379
1380                 DAVHeaderValue += HeaderValue[HeaderSeek];
1381
1382         }
1383
1384         if (DAVHeaderValue.size() > 0){
1385
1386                 DAVHeaderList.push_back(DAVHeaderValue);
1387
1388         }
1389
1390         return DAVHeaderList;
1391
1392 }