repos/pEpEngine: src/keymanagement.c@308d29b0cac7

     1 // This file is under GNU General Public License 3.0

     2 // see LICENSE.txt

     4 #include "platform.h"

     6 #include <string.h>

     7 #include <stdio.h>

     8 #include <stdlib.h>

     9 #include <assert.h>

    10 #include <ctype.h>

    12 #include "pEp_internal.h"

    13 #include "keymanagement.h"

    15 #include "blacklist.h"

    17 static bool key_matches_address(PEP_SESSION session, const char* address,

    18                                 const char* fpr) {

    19     if (!session || !address || !fpr)

    20         return false;

    22     bool retval = false;

    23     stringlist_t *keylist = NULL;

    24     PEP_STATUS status = find_keys(session, address, &keylist);

    25     if (status == PEP_STATUS_OK && keylist) {

    26         stringlist_t* curr = keylist;

    27         while (curr) {

    28             if (curr->value) {

    29                 if (strcasecmp(curr->value, fpr)) {

    30                     retval = true;

    31                     break;

    32                 }

    33             }

    34             curr = curr->next;

    35         }

    36     }

    38     free_stringlist(keylist);

    39     return retval;

    40 }

    42 PEP_STATUS elect_pubkey(

    43         PEP_SESSION session, pEp_identity * identity, bool check_blacklist

    44     )

    45 {

    46     PEP_STATUS status;

    47     stringlist_t *keylist = NULL;

    48     char *_fpr = "";

    49     identity->comm_type = PEP_ct_unknown;

    51     status = find_keys(session, identity->address, &keylist);

    52     assert(status != PEP_OUT_OF_MEMORY);

    53     if (status == PEP_OUT_OF_MEMORY)

    54         return PEP_OUT_OF_MEMORY;

    56     if (!keylist || !keylist->value)

    57         identity->comm_type = PEP_ct_key_not_found;

    58     else {

    59         stringlist_t *_keylist;

    60         for (_keylist = keylist; _keylist && _keylist->value; _keylist = _keylist->next) {

    61             PEP_comm_type _comm_type_key;

    63             status = get_key_rating(session, _keylist->value, &_comm_type_key);

    64             assert(status != PEP_OUT_OF_MEMORY);

    65             if (status == PEP_OUT_OF_MEMORY) {

    66                 free_stringlist(keylist);

    67                 return PEP_OUT_OF_MEMORY;

    68             }

    70             if (_comm_type_key != PEP_ct_compromised &&

    71                 _comm_type_key != PEP_ct_unknown)

    72             {

    73                 if (identity->comm_type == PEP_ct_unknown ||

    74                     _comm_type_key > identity->comm_type)

    75                 {

    76                     bool blacklisted = false;

    77                     bool mistrusted = false;

    78                     status = is_mistrusted_key(session, _keylist->value, &mistrusted);

    79                     if (status == PEP_STATUS_OK && check_blacklist)

    80                         status = blacklist_is_listed(session, _keylist->value, &blacklisted);

    81                     if (status == PEP_STATUS_OK && !mistrusted && !blacklisted) {

    82                         identity->comm_type = _comm_type_key;

    83                         _fpr = _keylist->value;

    84                     }

    85                 }

    86             }

    87         }

    88     }

    89     free(identity->fpr);

    91     if (!_fpr || _fpr[0] == '\0')

    92         identity->fpr = NULL;

    93     else {

    94         identity->fpr = strdup(_fpr);

    95         if (identity->fpr == NULL) {

    96             free_stringlist(keylist);

    97             return PEP_OUT_OF_MEMORY;

    98         }

    99     }

   101     free_stringlist(keylist);

   102     return PEP_STATUS_OK;

   103 }

   106 // own_must_contain_private is usually true when calling;

   107 // we only set it to false when we have the idea of

   108 // possibly having an own pubkey that we need to check on its own

   109 static PEP_STATUS validate_fpr(PEP_SESSION session,

   110                                pEp_identity* ident,

   111                                bool check_blacklist,

   112                                bool own_must_contain_private) {

   114     PEP_STATUS status = PEP_STATUS_OK;

   116     if (!session || !ident || !ident->fpr || !ident->fpr[0])

   117         return PEP_ILLEGAL_VALUE;

   119     char* fpr = ident->fpr;

   121     bool has_private = false;

   122     status = contains_priv_key(session, fpr, &has_private);

   124     if (ident->me && own_must_contain_private) {

   125         if (status != PEP_STATUS_OK || !has_private)

   126             return PEP_KEY_UNSUITABLE;

   127     }

   128     else if (status != PEP_STATUS_OK && has_private) // should never happen

   129         has_private = false;

   131     status = get_trust(session, ident);

   132     if (status != PEP_STATUS_OK)

   133         ident->comm_type = PEP_ct_unknown;

   135     PEP_comm_type ct = ident->comm_type;

   137     if (ct == PEP_ct_unknown) {

   138         // If status is bad, it's ok, we get the rating

   139         // we should use then (PEP_ct_unknown)

   140         get_key_rating(session, fpr, &ct);

   141         ident->comm_type = ct;

   142     }

   143     else if (ct == PEP_ct_key_expired || ct == PEP_ct_key_expired_but_confirmed) {

   144         PEP_comm_type ct_expire_check = PEP_ct_unknown;

   145         get_key_rating(session, fpr, &ct_expire_check);

   146         if (ct_expire_check >= PEP_ct_strong_but_unconfirmed) {

   147             ident->comm_type = ct_expire_check;

   148             if (ct == PEP_ct_key_expired_but_confirmed)

   149                 ident->comm_type |= PEP_ct_confirmed;

   150             ct = ident->comm_type;

   151             // We need to fix this trust in the DB.

   152             status = set_trust(session, ident);

   153         }

   154     }

   157     bool pEp_user = false;

   159     is_pEp_user(session, ident, &pEp_user);

   161     if (pEp_user) {

   162         switch (ct) {

   163             case PEP_ct_OpenPGP:

   164             case PEP_ct_OpenPGP_unconfirmed:

   165                 ct += 0x47; // difference between PEP and OpenPGP values;

   166                 ident->comm_type = ct;

   167                 break;

   168             default:

   169                 break;

   170         }

   171     }

   173     bool revoked, expired;

   174     bool blacklisted = false;

   176     status = key_revoked(session, fpr, &revoked);

   178     if (status != PEP_STATUS_OK) {

   179         return status;

   180     }

   182     if (!revoked) {

   183         time_t exp_time = (ident->me ?

   184                            time(NULL) + (7*24*3600) : time(NULL));

   186         status = key_expired(session, fpr,

   187                              exp_time,

   188                              &expired);

   190         assert(status == PEP_STATUS_OK);

   191         if (status != PEP_STATUS_OK)

   192             return status;

   194         if (check_blacklist && IS_PGP_CT(ct) &&

   195             !ident->me) {

   196             status = blacklist_is_listed(session,

   197                                          fpr,

   198                                          &blacklisted);

   200             if (status != PEP_STATUS_OK)

   201                 return status;

   202         }

   203     }

   205     if (ident->me && has_private &&

   206         (ct >= PEP_ct_strong_but_unconfirmed) &&

   207         !revoked && expired) {

   208         // extend key

   209         timestamp *ts = new_timestamp(time(NULL) + KEY_EXPIRE_DELTA);

   210         status = renew_key(session, fpr, ts);

   211         free_timestamp(ts);

   213         if (status == PEP_STATUS_OK) {

   214             // if key is valid (second check because pEp key might be extended above)

   215             //      Return fpr

   216             status = key_expired(session, fpr, time(NULL), &expired);

   217             if (status != PEP_STATUS_OK)

   218                 return status;

   220             if (expired) {

   221                 if (ident->comm_type & PEP_ct_confirmed || (ident->comm_type == PEP_ct_key_expired_but_confirmed))

   222                     ident->comm_type = PEP_ct_key_expired_but_confirmed;

   223                 else

   224                     ident->comm_type = PEP_ct_key_expired;

   225                 return status;

   226             }

   227             // communicate key(?)

   228         }

   229     }

   231     if (revoked)

   232         ct = PEP_ct_key_revoked;

   233     else if (expired) {

   234         if (ident->comm_type & PEP_ct_confirmed || (ident->comm_type == PEP_ct_key_expired_but_confirmed))

   235             ct = PEP_ct_key_expired_but_confirmed;

   236         else

   237             ct = PEP_ct_key_expired;

   238     }

   239     else if (blacklisted) { // never true for .me

   240         ident->comm_type = ct = PEP_ct_key_not_found;

   241         free(ident->fpr);

   242             ident->fpr = strdup("");

   243         status = PEP_KEY_BLACKLISTED;

   244     }

   246     switch (ct) {

   247         case PEP_ct_key_expired:

   248         case PEP_ct_key_expired_but_confirmed:

   249         case PEP_ct_key_revoked:

   250         case PEP_ct_key_b0rken:

   251             // delete key from being default key for all users/identities

   252             status = remove_fpr_as_default(session, fpr);

   253             status = update_trust_for_fpr(session,

   254                                           fpr,

   255                                           ct);

   256         case PEP_ct_mistrusted:

   257             free(ident->fpr);

   258             ident->fpr = NULL;

   259             ident->comm_type = ct;

   260             status = PEP_KEY_UNSUITABLE;

   261         default:

   262             break;

   263     }

   265     return status;

   266 }

   268 PEP_STATUS get_all_keys_for_user(PEP_SESSION session,

   269                                  const char* user_id,

   270                                  stringlist_t** keys) {

   272     if (!session || EMPTYSTR(user_id) || !keys)

   273         return PEP_ILLEGAL_VALUE;

   275     PEP_STATUS status = PEP_STATUS_OK;

   277     *keys = NULL;

   278     stringlist_t* _kl = NULL;

   280     sqlite3_reset(session->get_all_keys_for_user);

   281     sqlite3_bind_text(session->get_all_keys_for_user, 1, user_id, -1, SQLITE_STATIC);

   283     int result = -1;

   285     while ((result = sqlite3_step(session->get_all_keys_for_user)) == SQLITE_ROW) {

   286         const char* keyres = (const char *) sqlite3_column_text(session->get_all_keys_for_user, 0);

   287         if (keyres) {

   288             if (_kl)

   289                 stringlist_add(_kl, keyres);

   290             else

   291                 _kl = new_stringlist(keyres);

   292         }

   293     }

   295     if (!_kl)

   296         return PEP_KEY_NOT_FOUND;

   298     *keys = _kl;

   300     sqlite3_reset(session->get_all_keys_for_user);

   302     return status;

   303 }

   305 PEP_STATUS get_user_default_key(PEP_SESSION session, const char* user_id,

   306                                 char** default_key) {

   307     assert(session);

   308     assert(user_id);

   310     if (!session || !user_id)

   311         return PEP_ILLEGAL_VALUE;

   313     PEP_STATUS status = PEP_STATUS_OK;

   315     // try to get default key for user_data

   316     sqlite3_reset(session->get_user_default_key);

   317     sqlite3_bind_text(session->get_user_default_key, 1, user_id,

   318                       -1, SQLITE_STATIC);

   320     const int result = sqlite3_step(session->get_user_default_key);

   321     char* user_fpr = NULL;

   322     if (result == SQLITE_ROW) {

   323         const char* u_fpr =

   324             (char *) sqlite3_column_text(session->get_user_default_key, 0);

   325         if (u_fpr)

   326             user_fpr = strdup(u_fpr);

   327     }

   328     else

   329         status = PEP_GET_KEY_FAILED;

   331     sqlite3_reset(session->get_user_default_key);

   333     *default_key = user_fpr;

   334     return status;

   335 }

   337 // Only call on retrieval of previously stored identity!

   338 // Also, we presume that if the stored_identity was sent in

   339 // without an fpr, there wasn't one in the trust DB for this

   340 // identity.

   341 PEP_STATUS get_valid_pubkey(PEP_SESSION session,

   342                          pEp_identity* stored_identity,

   343                          bool* is_identity_default,

   344                          bool* is_user_default,

   345                          bool* is_address_default,

   346                          bool check_blacklist) {

   348     PEP_STATUS status = PEP_STATUS_OK;

   350     if (!stored_identity || EMPTYSTR(stored_identity->user_id)

   351         || !is_identity_default || !is_user_default || !is_address_default)

   352         return PEP_ILLEGAL_VALUE;

   354     *is_identity_default = *is_user_default = *is_address_default = false;

   356     PEP_comm_type first_reject_comm_type = PEP_ct_key_not_found;

   357     PEP_STATUS first_reject_status = PEP_KEY_NOT_FOUND;

   359     char* stored_fpr = stored_identity->fpr;

   360     // Input: stored identity retrieved from database

   361     // if stored identity contains a default key

   362     if (!EMPTYSTR(stored_fpr)) {

   363         status = validate_fpr(session, stored_identity, check_blacklist, true);

   364         if (status == PEP_STATUS_OK && !EMPTYSTR(stored_identity->fpr)) {

   365             *is_identity_default = *is_address_default = true;

   366             return status;

   367         }

   368         else if (status != PEP_KEY_NOT_FOUND) {

   369             first_reject_status = status;

   370             first_reject_comm_type = stored_identity->comm_type;

   371         }

   372     }

   373     // if no valid default stored identity key found

   374     free(stored_identity->fpr);

   375     stored_identity->fpr = NULL;

   377     char* user_fpr = NULL;

   378     status = get_user_default_key(session, stored_identity->user_id, &user_fpr);

   380     if (!EMPTYSTR(user_fpr)) {

   381         // There exists a default key for user, so validate

   382         stored_identity->fpr = user_fpr;

   383         status = validate_fpr(session, stored_identity, check_blacklist, true);

   384         if (status == PEP_STATUS_OK && stored_identity->fpr) {

   385             *is_user_default = true;

   386             *is_address_default = key_matches_address(session,

   387                                                       stored_identity->address,

   388                                                       stored_identity->fpr);

   389             return status;

   390         }

   391         else if (status != PEP_KEY_NOT_FOUND && first_reject_status != PEP_KEY_NOT_FOUND) {

   392             first_reject_status = status;

   393             first_reject_comm_type = stored_identity->comm_type;

   394         }

   395     }

   397     status = elect_pubkey(session, stored_identity, check_blacklist);

   398     if (status == PEP_STATUS_OK) {

   399         if (!EMPTYSTR(stored_identity->fpr))

   400             validate_fpr(session, stored_identity, false, true); // blacklist already filtered of needed

   401     }

   402     else if (status != PEP_KEY_NOT_FOUND && first_reject_status != PEP_KEY_NOT_FOUND) {

   403         first_reject_status = status;

   404         first_reject_comm_type = stored_identity->comm_type;

   405     }

   407     switch (stored_identity->comm_type) {

   408         case PEP_ct_key_revoked:

   409         case PEP_ct_key_b0rken:

   410         case PEP_ct_key_expired:

   411         case PEP_ct_key_expired_but_confirmed:

   412         case PEP_ct_compromised:

   413         case PEP_ct_mistrusted:

   414             // this only happens when it's all there is

   415             status = first_reject_status;

   416             free(stored_identity->fpr);

   417             stored_identity->fpr = NULL;

   418             stored_identity->comm_type = first_reject_comm_type;

   419             break;

   420         default:

   421             if (check_blacklist && status == PEP_KEY_BLACKLISTED) {

   422                 free(stored_identity->fpr);

   423                 stored_identity->fpr = NULL;

   424                 stored_identity->comm_type = PEP_ct_key_not_found;

   425             }

   426             break;

   427     }

   428     return status;

   429 }

   431 static void transfer_ident_lang_and_flags(pEp_identity* new_ident,

   432                                           pEp_identity* stored_ident) {

   433     if (new_ident->lang[0] == 0) {

   434       new_ident->lang[0] = stored_ident->lang[0];

   435       new_ident->lang[1] = stored_ident->lang[1];

   436       new_ident->lang[2] = 0;

   437     }

   439     new_ident->flags = stored_ident->flags;

   440     new_ident->me = new_ident->me || stored_ident->me;

   441 }

   443 static void adjust_pEp_trust_status(PEP_SESSION session, pEp_identity* identity) {

   444     assert(session);

   445     assert(identity);

   447     if (identity->comm_type < PEP_ct_strong_but_unconfirmed ||

   448         (identity->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)

   449         return;

   451     bool pEp_user;

   453     is_pEp_user(session, identity, &pEp_user);

   455     if (pEp_user) {

   456         PEP_comm_type confirmation_status = identity->comm_type & PEP_ct_confirmed;

   457         identity->comm_type = PEP_ct_pEp_unconfirmed | confirmation_status;

   458         if (identity->major_ver == 0) {

   459             identity->major_ver = 2;

   460             identity->minor_ver = 0;

   461         }

   462     }

   463 }

   466 static PEP_STATUS prepare_updated_identity(PEP_SESSION session,

   467                                                  pEp_identity* return_id,

   468                                                  pEp_identity* stored_ident,

   469                                                  bool store) {

   471     if (!session || !return_id || !stored_ident)

   472         return PEP_ILLEGAL_VALUE;

   474     PEP_STATUS status;

   476     bool is_identity_default, is_user_default, is_address_default;

   477     bool no_stored_default = EMPTYSTR(stored_ident->fpr);

   479     status = get_valid_pubkey(session, stored_ident,

   480                                 &is_identity_default,

   481                                 &is_user_default,

   482                                 &is_address_default,

   483                               false);

   485     if (status == PEP_STATUS_OK && stored_ident->fpr && *(stored_ident->fpr) != '\0') {

   486     // set identity comm_type from trust db (user_id, FPR)

   487         status = get_trust(session, stored_ident);

   488         if (status == PEP_CANNOT_FIND_IDENTITY || stored_ident->comm_type == PEP_ct_unknown) {

   489             // This is OK - there is no trust DB entry, but we

   490             // found a key. We won't store this, but we'll

   491             // use it.

   492             PEP_comm_type ct = PEP_ct_unknown;

   493             status = get_key_rating(session, stored_ident->fpr, &ct);

   494             stored_ident->comm_type = ct;

   495         }

   496     }

   497     else if (status != PEP_STATUS_OK) {

   498         free(stored_ident->fpr);

   499         stored_ident->fpr = NULL;

   500         stored_ident->comm_type = PEP_ct_key_not_found;

   501     }

   502     else { // no key returned, but status ok?

   503         if (stored_ident->comm_type == PEP_ct_unknown)

   504             stored_ident->comm_type = PEP_ct_key_not_found;

   505     }

   506     free(return_id->fpr);

   507     return_id->fpr = NULL;

   508     if (status == PEP_STATUS_OK && !EMPTYSTR(stored_ident->fpr))

   509         return_id->fpr = strdup(stored_ident->fpr);

   511     return_id->comm_type = stored_ident->comm_type;

   513     // We patch the DB with the input username, but if we didn't have

   514     // one, we pull it out of storage if available.

   515     if (!EMPTYSTR(stored_ident->username)) {

   516         if (!EMPTYSTR(return_id->username) &&

   517             (strcasecmp(return_id->username, return_id->address) == 0)) {

   518             free(return_id->username);

   519             return_id->username = NULL;

   520         }

   521         if (EMPTYSTR(return_id->username)) {

   522             free(return_id->username);

   523             return_id->username = strdup(stored_ident->username);

   524         }

   525     }

   526     else {

   527         if (EMPTYSTR(return_id->username))

   528             return_id->username = strdup(return_id->address);

   529     }

   531     return_id->me = stored_ident->me;

   533     return_id->major_ver = stored_ident->major_ver;

   534     return_id->minor_ver = stored_ident->minor_ver;

   536     // FIXME: Do we ALWAYS do this? We probably should...

   537     if (EMPTYSTR(return_id->user_id)) {

   538         free(return_id->user_id);

   539         return_id->user_id = strdup(stored_ident->user_id);

   540     }

   542     adjust_pEp_trust_status(session, return_id);

   544     // Call set_identity() to store

   545     if ((is_identity_default || is_user_default) &&

   546          is_address_default) {

   547          // if we got an fpr which is default for either user

   548          // or identity AND is valid for this address, set in DB

   549          // as default

   550          status = set_identity(session, return_id);

   551     }

   552     else if (no_stored_default && !EMPTYSTR(return_id->fpr)

   553              && return_id->comm_type != PEP_ct_key_revoked

   554              && return_id->comm_type != PEP_ct_key_expired

   555              && return_id->comm_type != PEP_ct_key_expired_but_confirmed

   556              && return_id->comm_type != PEP_ct_mistrusted

   557              && return_id->comm_type != PEP_ct_key_b0rken) {

   558         // We would have stored this anyway for a first-time elected key. We just have an ident w/ no default already.

   559         status = set_identity(session, return_id);

   560     }

   561     else { // this is a key other than the default, but there IS a default (FIXME: fdik, do we really want behaviour below?)

   562         // Store without default fpr/ct, but return the fpr and ct

   563         // for current use

   564         char* save_fpr = return_id->fpr;

   565         PEP_comm_type save_ct = return_id->comm_type;

   566         return_id->fpr = NULL;

   567         return_id->comm_type = PEP_ct_unknown;

   568         PEP_STATUS save_status = status;

   569         status = set_identity(session, return_id);

   570         if (save_status != PEP_STATUS_OK)

   571             status = save_status;

   572         return_id->fpr = save_fpr;

   573         return_id->comm_type = save_ct;

   574     }

   576     transfer_ident_lang_and_flags(return_id, stored_ident);

   577     return_id->enc_format = stored_ident->enc_format;

   579     if (return_id->comm_type == PEP_ct_unknown)

   580         return_id->comm_type = PEP_ct_key_not_found;

   582     return status;

   583 }

   585 DYNAMIC_API PEP_STATUS update_identity(

   586         PEP_SESSION session, pEp_identity * identity

   587     )

   588 {

   589     PEP_STATUS status;

   591     assert(session);

   592     assert(identity);

   593     assert(!EMPTYSTR(identity->address));

   595     if (!(session && identity && !EMPTYSTR(identity->address)))

   596         return PEP_ILLEGAL_VALUE;

   598     char* default_own_id = NULL;

   599     status = get_default_own_userid(session, &default_own_id);

   601     bool is_own_user = identity->me;

   603     // Is this me, temporary or not? If so, BAIL.

   604     if (!is_own_user) {

   605         if (default_own_id) {

   606             if (!EMPTYSTR(identity->user_id)) {

   607                 if (strcmp(default_own_id, identity->user_id) == 0) {

   608                     is_own_user = true;

   609                 }

   610                 else {

   611                     char* alias = NULL;

   612                     if (get_userid_alias_default(session, identity->user_id, &alias) == PEP_STATUS_OK) {

   613                         if (alias && strcmp(default_own_id, alias) == 0)

   614                             is_own_user = true;

   615                         free(alias);

   616                     }

   617                 }

   618             }

   619             else {

   620                 // Check if own address. For now, this is a special case;

   621                 // we try to require apps to send in user_ids, but must prevent

   622                 // writes to an own identity from within THIS function

   623                 // NOTE: These semantics MAY CHANGE.

   624                 bool _own_addr = false;

   625                 is_own_address(session, identity->address, &_own_addr);

   627                 // N.B. KB: I would prefer consistent semantics here - that is to say,

   628                 // we also set is_own_user here and force PEP_ILLEGAL_VALUE

   629                 if (_own_addr) {

   630                     free(identity->user_id);

   631                     identity->user_id = strdup(default_own_id);

   632                     return _myself(session, identity, false, false, true);

   633                 }

   634             }

   635         }

   636         // Otherwise, we don't even HAVE an own user yet, so we're ok.

   637     }

   638     if (is_own_user)

   639     {

   640         free(default_own_id);

   641         return PEP_ILLEGAL_VALUE;

   642     }

   644     // We have, at least, an address.

   645     // Retrieve stored identity information!

   646     pEp_identity* stored_ident = NULL;

   648     if (!EMPTYSTR(identity->user_id)) {

   649         // (we're gonna update the trust/fpr anyway, so we use the no-fpr-from-trust-db variant)

   650         //      * do get_identity() to retrieve stored identity information

   651         status = get_identity_without_trust_check(session, identity->address, identity->user_id, &stored_ident);

   653         // Before we start - if there was no stored identity, we should check to make sure we don't

   654         // have a stored identity with a temporary user_id that differs from the input user_id. This

   655         // happens in multithreaded environments sometimes.

   656         if (!stored_ident) {

   657             identity_list* id_list = NULL;

   658             status = get_identities_by_address(session, identity->address, &id_list);

   660             if (id_list) {

   661                 identity_list* id_curr = id_list;

   662                 bool input_is_TOFU = (strstr(identity->user_id, "TOFU_") == identity->user_id);

   663                 while (id_curr) {

   664                     pEp_identity* this_id = id_curr->ident;

   665                     if (this_id) {

   666                         char* this_uid = this_id->user_id;

   667                         bool curr_is_TOFU = false;

   668                         // this_uid should never be NULL, as this is half of the ident

   669                         // DB primary key

   670                         assert(!EMPTYSTR(this_uid));

   672                         curr_is_TOFU = (strstr(this_uid, "TOFU_") == this_uid);

   673                         if (curr_is_TOFU && !input_is_TOFU) {

   674                             // FIXME: should we also be fixing pEp_own_userId in this

   675                             // function here?

   677                             // if usernames match, we replace the userid.

   678                             // FIXME: do we need to create an address match function which

   679                             // matches the whole dot-and-case rigamarole from

   680                             if (EMPTYSTR(this_id->username) ||

   681                                 strcasecmp(this_id->username, this_id->address) == 0 ||

   682                                 (identity->username &&

   683                                  strcasecmp(identity->username,

   684                                             this_id->username) == 0)) {

   686                                 // Ok, we have a temp ID. We have to replace this

   687                                 // with the real ID.

   688                                 status = replace_userid(session,

   689                                                         this_uid,

   690                                                         identity->user_id);

   691                                 if (status != PEP_STATUS_OK) {

   692                                     free_identity_list(id_list);

   693                                     free(default_own_id);

   694                                     return status;

   695                                 }

   697                                 free(this_uid);

   698                                 this_uid = NULL;

   700                                 // Reflect the change we just made to the DB

   701                                 this_id->user_id = strdup(identity->user_id);

   702                                 stored_ident = this_id;

   703                                 // FIXME: free list.

   704                                 break;

   705                             }

   706                         }

   707                         else if (input_is_TOFU && !curr_is_TOFU) {

   708                             // Replace ruthlessly - this is NOT supposed to happen.

   709                             // BAD APP BEHAVIOUR.

   710                             free(identity->user_id);

   711                             identity->user_id = strdup(this_id->user_id);

   712                             stored_ident = this_id;

   713                             // FIXME: free list.

   714                             break;

   715                         }

   716                     }

   717                     id_curr = id_curr->next;

   718                 }

   719             }

   720         }

   722         if (status == PEP_STATUS_OK && stored_ident) {

   723             //  * if identity available

   724             //      * patch it with username

   725             //          (note: this will happen when

   726             //           setting automatically below...)

   727             //      * elect valid key for identity

   728             //    * if valid key exists

   729             //        * set return value's fpr

   730             status = prepare_updated_identity(session,

   731                                               identity,

   732                                               stored_ident, true);

   733         }

   734         //  * else (identity unavailable)

   735         else {

   736             status = PEP_STATUS_OK;

   738             // FIXME: We may need to roll this back.

   739             // FIXME: change docs if we don't

   740             //  if we only have user_id and address and identity not available

   741             //      * return error status (identity not found)

   742             if (EMPTYSTR(identity->username)) {

   743                 free(identity->username);

   744                 identity->username = strdup(identity->address);

   745             }

   747             // Otherwise, if we had user_id, address, and username:

   748             //    * create identity with user_id, address, username

   749             //      (this is the input id without the fpr + comm type!)

   751             elect_pubkey(session, identity, false);

   753             //    * We've already checked and retrieved

   754             //      any applicable temporary identities above. If we're

   755             //      here, none of them fit.

   756             //    * call set_identity() to store

   757             // FIXME: Do we set if we had to copy in the address?

   758             adjust_pEp_trust_status(session, identity);

   759             status = set_identity(session, identity);

   760             //  * Return: created identity

   761         }

   762     }

   763     else if (!EMPTYSTR(identity->username)) {

   764         /*

   765          * Temporary identity information with username supplied

   766             * Input: address, username (no others)

   767          */

   769         //  * See if there is an own identity that uses this address. If so, we'll

   770         //    prefer that

   771         stored_ident = NULL;

   773         if (default_own_id) {

   774             status = get_identity(session,

   775                                   identity->address,

   776                                   default_own_id,

   777                                   &stored_ident);

   778         }

   779         // If there isn't an own identity, search for a non-temp stored ident

   780         // with this address.

   781         if (status == PEP_CANNOT_FIND_IDENTITY || !stored_ident) {

   783             identity_list* id_list = NULL;

   784             status = get_identities_by_address(session, identity->address, &id_list);

   786             if (id_list) {

   787                 identity_list* id_curr = id_list;

   788                 while (id_curr) {

   789                     pEp_identity* this_id = id_curr->ident;

   790                     if (this_id) {

   791                         char* this_uid = this_id->user_id;

   792                         assert(!EMPTYSTR(this_uid));

   793                         // Should never be NULL - DB primary key

   795                         if (strstr(this_uid, "TOFU_") != this_uid) {

   796                             // if usernames match, we replace the userid.

   797                             if (identity->username &&

   798                                 strcasecmp(identity->username,

   799                                            this_id->username) == 0) {

   801                                 // Ok, we have a real ID. Copy it!

   802                                 identity->user_id = strdup(this_uid);

   803                                 assert(identity->user_id);

   804                                 if (!identity->user_id)

   805                                     goto enomem;

   807                                 stored_ident = this_id;

   809                                 break;

   810                             }

   811                         }

   812                     }

   813                     id_curr = id_curr->next;

   814                 }

   815             }

   816         }

   818         if (stored_ident) {

   819             status = prepare_updated_identity(session,

   820                                               identity,

   821                                               stored_ident, true);

   822         }

   823         else {

   824             identity->user_id = calloc(1, strlen(identity->address) + 6);

   825             if (!identity->user_id)

   826                 goto enomem;

   828             snprintf(identity->user_id, strlen(identity->address) + 6,

   829                      "TOFU_%s", identity->address);

   831             status = get_identity(session,

   832                                   identity->address,

   833                                   identity->user_id,

   834                                   &stored_ident);

   836             if (status == PEP_STATUS_OK && stored_ident) {

   837                 status = prepare_updated_identity(session,

   838                                                   identity,

   839                                                   stored_ident, true);

   840             }

   841             else {

   843                 //    * We've already checked and retrieved

   844                 //      any applicable temporary identities above. If we're

   845                 //      here, none of them fit.

   847                 status = elect_pubkey(session, identity, false);

   849                 //    * call set_identity() to store

   850                 if (identity->fpr) {

   851                     // it is still possible we have DB information on this key. Better check.

   852                     status = get_trust(session, identity);

   853                     PEP_comm_type db_ct = identity->comm_type;

   854                     status = get_key_rating(session, identity->fpr, &identity->comm_type);

   855                     PEP_comm_type key_ct = identity->comm_type;

   857                     if (status == PEP_STATUS_OK) {

   858                         switch (key_ct) {

   859                             case PEP_ct_key_expired:

   860                                 if (db_ct == PEP_ct_key_expired_but_confirmed)

   861                                     identity->comm_type = db_ct;

   862                                 break;

   863                             default:

   864                                 switch(db_ct) {

   865                                     case PEP_ct_key_expired_but_confirmed:

   866                                         if (key_ct >= PEP_ct_strong_but_unconfirmed)

   867                                             identity->comm_type |= PEP_ct_confirmed;

   868                                         break;

   869                                     case PEP_ct_mistrusted:

   870                                     case PEP_ct_compromised:

   871                                     case PEP_ct_key_b0rken:

   872                                         identity->comm_type = db_ct;

   873                                     default:

   874                                         break;

   875                                 }

   876                                 break;

   877                         }

   878                     }

   879                 }

   880                 //    * call set_identity() to store

   881                 adjust_pEp_trust_status(session, identity);

   882                 status = set_identity(session, identity);

   883             }

   884         }

   885     }

   886     else {

   887         /*

   888         * Input: address (no others)

   889          * Temporary identity information without username suplied

   890          */

   892         //  * Again, see if there is an own identity that uses this address. If so, we'll

   893         //    prefer that

   894         stored_ident = NULL;

   896         if (default_own_id) {

   897             status = get_identity(session,

   898                                   identity->address,

   899                                   default_own_id,

   900                                   &stored_ident);

   901         }

   902         // If there isn't an own identity, search for a non-temp stored ident

   903         // with this address.

   904         if (status == PEP_CANNOT_FIND_IDENTITY || !stored_ident) {

   906             identity_list* id_list = NULL;

   907             //    * Search for identity with this address

   908             status = get_identities_by_address(session, identity->address, &id_list);

   910             // Results are ordered by timestamp descending, so this covers

   911             // both the one-result and multi-result cases

   912             if (id_list) {

   913                 if (stored_ident) // unlikely

   914                     free_identity(stored_ident);

   915                 stored_ident = id_list->ident;

   916             }

   917         }

   918         if (stored_ident)

   919             status = prepare_updated_identity(session, identity,

   920                                               stored_ident, false);

   921         else  {

   922             // too little info. BUT. We see if we can find a key; if so, we create a

   923             // temp identity, look for a key, and store.

   925             // create temporary identity, store it, and Return this

   926             // This means TOFU_ user_id

   927             identity->user_id = calloc(1, strlen(identity->address) + 6);

   928             if (!identity->user_id)

   929                 goto enomem;

   931             snprintf(identity->user_id, strlen(identity->address) + 6,

   932                      "TOFU_%s", identity->address);

   934             identity->username = strdup(identity->address);

   935             if (!identity->address)

   936                 goto enomem;

   938             free(identity->fpr);

   939             identity->fpr = NULL;

   940             identity->comm_type = PEP_ct_unknown;

   942             status = elect_pubkey(session, identity, false);

   944             if (identity->fpr)

   945                 status = get_key_rating(session, identity->fpr, &identity->comm_type);

   947             //    * call set_identity() to store

   948             adjust_pEp_trust_status(session, identity);

   949             status = set_identity(session, identity);

   951         }

   952     }

   954     // FIXME: This is legacy. I presume it's a notification for the caller...

   955     // Revisit once I can talk to Volker

   956     if (identity->comm_type != PEP_ct_compromised &&

   957         identity->comm_type < PEP_ct_strong_but_unconfirmed)

   958         if (session->examine_identity)

   959             session->examine_identity(identity, session->examine_management);

   961     goto pEp_free;

   963 enomem:

   964     status = PEP_OUT_OF_MEMORY;

   966 pEp_free:

   967     free(default_own_id);

   968     free_identity(stored_ident);

   969     return status;

   970 }

   972 PEP_STATUS elect_ownkey(

   973         PEP_SESSION session, pEp_identity * identity

   974     )

   975 {

   976     PEP_STATUS status;

   977     stringlist_t *keylist = NULL;

   979     free(identity->fpr);

   980     identity->fpr = NULL;

   982     status = find_private_keys(session, identity->address, &keylist);

   983     assert(status != PEP_OUT_OF_MEMORY);

   984     if (status == PEP_OUT_OF_MEMORY)

   985         return PEP_OUT_OF_MEMORY;

   987     if (keylist != NULL && keylist->value != NULL)

   988     {

   989         char *_fpr = NULL;

   990         identity->comm_type = PEP_ct_unknown;

   992         stringlist_t *_keylist;

   993         for (_keylist = keylist; _keylist && _keylist->value; _keylist = _keylist->next) {

   994             bool is_own = false;

   996             status = own_key_is_listed(session, _keylist->value, &is_own);

   997             assert(status == PEP_STATUS_OK);

   998             if (status != PEP_STATUS_OK) {

   999                 free_stringlist(keylist);

  1000                 return status;

  1001             }

  1003             if (is_own)

  1004             {

  1005                 PEP_comm_type _comm_type_key;

  1007                 status = get_key_rating(session, _keylist->value, &_comm_type_key);

  1008                 assert(status != PEP_OUT_OF_MEMORY);

  1009                 if (status == PEP_OUT_OF_MEMORY) {

  1010                     free_stringlist(keylist);

  1011                     return PEP_OUT_OF_MEMORY;

  1012                 }

  1014                 if (_comm_type_key != PEP_ct_compromised &&

  1015                     _comm_type_key != PEP_ct_unknown)

  1016                 {

  1017                     if (identity->comm_type == PEP_ct_unknown ||

  1018                         _comm_type_key > identity->comm_type)

  1019                     {

  1020                         identity->comm_type = _comm_type_key;

  1021                         _fpr = _keylist->value;

  1022                     }

  1023                 }

  1024             }

  1025         }

  1027         if (_fpr)

  1028         {

  1029             identity->fpr = strdup(_fpr);

  1030             assert(identity->fpr);

  1031             if (identity->fpr == NULL)

  1032             {

  1033                 free_stringlist(keylist);

  1034                 return PEP_OUT_OF_MEMORY;

  1035             }

  1036         }

  1037         free_stringlist(keylist);

  1038     }

  1039     return PEP_STATUS_OK;

  1040 }

  1042 PEP_STATUS _has_usable_priv_key(PEP_SESSION session, char* fpr,

  1043                                 bool* is_usable) {

  1045     bool has_private = false;

  1046     PEP_STATUS status = contains_priv_key(session, fpr, &has_private);

  1048     *is_usable = has_private;

  1050     return status;

  1051 }

  1053 PEP_STATUS _myself(PEP_SESSION session,

  1054                    pEp_identity * identity,

  1055                    bool do_keygen,

  1056                    bool ignore_flags,

  1057                    bool read_only)

  1058 {

  1060     PEP_STATUS status;

  1062     assert(session);

  1063     assert(identity);

  1064     assert(!EMPTYSTR(identity->address));

  1066     if (!session || EMPTYSTR(identity->address))

  1067         return PEP_ILLEGAL_VALUE;

  1069     // this is leading to crashes otherwise

  1071     if (!(identity->user_id && identity->user_id[0])) {

  1072         free(identity->user_id);

  1073         identity->user_id = strdup(PEP_OWN_USERID);

  1074         assert(identity->user_id);

  1075         if (!identity->user_id)

  1076             return PEP_OUT_OF_MEMORY;

  1077     }

  1079     pEp_identity *stored_identity = NULL;

  1080     char* revoked_fpr = NULL;

  1081     bool valid_key_found = false;

  1083     char* default_own_id = NULL;

  1084     status = get_default_own_userid(session, &default_own_id);

  1086     // Deal with non-default user_ids.

  1087     // FIXME: if non-default and read-only, reject totally?

  1088     if (default_own_id && strcmp(default_own_id, identity->user_id) != 0) {

  1089         if (read_only) {

  1090             free(identity->user_id);

  1091             identity->user_id = strdup(default_own_id);

  1092             assert(identity->user_id);

  1093             if (!identity->user_id)

  1094                 return PEP_OUT_OF_MEMORY;

  1095         }

  1096         else {

  1097             status = set_userid_alias(session, default_own_id, identity->user_id);

  1098             // Do we want this to be fatal? For now, we'll do it...

  1099             if (status != PEP_STATUS_OK)

  1100                 goto pEp_free;

  1102             free(identity->user_id);

  1103             identity->user_id = strdup(default_own_id);

  1104             assert(identity->user_id);

  1105             if (identity->user_id == NULL) {

  1106                 status = PEP_OUT_OF_MEMORY;

  1107                 goto pEp_free;

  1108             }

  1109         }

  1110     }

  1112     // NOTE: IF WE DON'T YET HAVE AN OWN_ID, WE IGNORE REFERENCES TO THIS ADDRESS IN THE

  1113     // DB (WHICH MAY HAVE BEEN SET BEFORE MYSELF WAS CALLED BY RECEIVING AN EMAIL FROM

  1114     // THIS ADDRESS), AS IT IS NOT AN OWN_IDENTITY AND HAS NO INFORMATION WE NEED OR WHAT TO

  1115     // SET FOR MYSELF

  1117     // Ok, so now, set up the own_identity:

  1118     identity->comm_type = PEP_ct_pEp;

  1119     identity->me = true;

  1120     if(ignore_flags)

  1121         identity->flags = 0;

  1123     // Let's see if we have an identity record in the DB for

  1124     // this user_id + address

  1125 //    DEBUG_LOG("myself", "debug", identity->address);

  1127     // This will grab the actual flags from the db

  1128     status = get_identity(session,

  1129                           identity->address,

  1130                           identity->user_id,

  1131                           &stored_identity);

  1133     assert(status != PEP_OUT_OF_MEMORY);

  1134     if (status == PEP_OUT_OF_MEMORY) {

  1135         status = PEP_OUT_OF_MEMORY;

  1136         goto pEp_free;

  1137     }

  1139     // Set usernames - priority is input username > stored name > address

  1140     // If there's an input username, we always patch the username with that

  1141     // input.

  1142     if (EMPTYSTR(identity->username) || read_only) {

  1143         bool stored_uname = (stored_identity && !EMPTYSTR(stored_identity->username));

  1144         char* uname = (stored_uname ? stored_identity->username : identity->address);

  1145         if (uname) {

  1146             free(identity->username);

  1147             identity->username = strdup(uname);

  1148             assert(identity->username);

  1149             if (identity->username == NULL) {

  1150                 status = PEP_OUT_OF_MEMORY;

  1151                 goto pEp_free;

  1152             }

  1153         }

  1154     }

  1156     // ignore input fpr

  1158     if (identity->fpr) {

  1159         free(identity->fpr);

  1160         identity->fpr = NULL;

  1161     }

  1163     // check stored identity

  1164     if (stored_identity) {

  1165         if (!EMPTYSTR(stored_identity->fpr)) {

  1166             // Fall back / retrieve

  1167             status = validate_fpr(session, stored_identity, false, true);

  1168             if (status == PEP_OUT_OF_MEMORY)

  1169                 goto pEp_free;

  1170             if (status == PEP_STATUS_OK) {

  1171                 if (stored_identity->comm_type >= PEP_ct_strong_but_unconfirmed) {

  1172                     identity->fpr = strdup(stored_identity->fpr);

  1173                     assert(identity->fpr);

  1174                     if (!identity->fpr) {

  1175                         status = PEP_OUT_OF_MEMORY;

  1176                         goto pEp_free;

  1177                     }

  1178                     valid_key_found = true;

  1179                 }

  1180                 else {

  1181                     bool revoked = false;

  1182                     status = key_revoked(session, stored_identity->fpr, &revoked);

  1183                     if (status)

  1184                         goto pEp_free;

  1185                     if (revoked) {

  1186                         revoked_fpr = strdup(stored_identity->fpr);

  1187                         assert(revoked_fpr);

  1188                         if (!revoked_fpr) {

  1189                             status = PEP_OUT_OF_MEMORY;

  1190                             goto pEp_free;

  1191                         }

  1192                     }

  1193                 }

  1194             }

  1195         }

  1196         // reconcile language, flags

  1197         transfer_ident_lang_and_flags(identity, stored_identity);

  1198     }

  1200     // Nothing left to do but generate a key

  1201     if (!valid_key_found) {

  1202         if (!do_keygen || read_only)

  1203             status = PEP_GET_KEY_FAILED;

  1204         else {

  1205 // /            DEBUG_LOG("Generating key pair", "debug", identity->address);

  1207             free(identity->fpr);

  1208             identity->fpr = NULL;

  1209             status = generate_keypair(session, identity);

  1210             assert(status != PEP_OUT_OF_MEMORY);

  1212             if (status != PEP_STATUS_OK) {

  1213                 char buf[11];

  1214                 snprintf(buf, 11, "%d", status); // uh, this is kludgey. FIXME

  1215 //                DEBUG_LOG("Generating key pair failed", "debug", buf);

  1216             }

  1217             else {

  1218                 valid_key_found = true;

  1219                 if (revoked_fpr) {

  1220                     status = set_revoked(session, revoked_fpr,

  1221                                          stored_identity->fpr, time(NULL));

  1222                     assert(status == PEP_STATUS_OK);

  1223                 }

  1224             }

  1225         }

  1226     }

  1228     if (valid_key_found) {

  1229         identity->comm_type = PEP_ct_pEp;

  1230         status = PEP_STATUS_OK;

  1231     }

  1232     else {

  1233         free(identity->fpr);

  1234         identity->fpr = NULL;

  1235         identity->comm_type = PEP_ct_unknown;

  1236     }

  1238     unsigned int major_ver = 0;

  1239     unsigned int minor_ver = 0;

  1240     pEp_version_major_minor(PEP_VERSION, &major_ver, &minor_ver);

  1241     identity->major_ver = major_ver;

  1242     identity->minor_ver = minor_ver;

  1244     // We want to set an identity in the DB even if a key isn't found, but we have to preserve the status if

  1245     // it's NOT ok

  1246     if (!read_only) {

  1247         PEP_STATUS set_id_status = set_identity(session, identity);

  1248         if (set_id_status == PEP_STATUS_OK)

  1249             set_id_status = set_as_pEp_user(session, identity);

  1251         status = (status == PEP_STATUS_OK ? set_id_status : status);

  1252     }

  1254 pEp_free:

  1255     free(default_own_id);

  1256     free(revoked_fpr);

  1257     free_identity(stored_identity);

  1258     return status;

  1259 }

  1261 DYNAMIC_API PEP_STATUS myself(PEP_SESSION session, pEp_identity * identity)

  1262 {

  1263     return _myself(session, identity, true, false, false);

  1264 }

  1266 DYNAMIC_API PEP_STATUS register_examine_function(

  1267         PEP_SESSION session,

  1268         examine_identity_t examine_identity,

  1269         void *management

  1270     )

  1271 {

  1272     assert(session);

  1273     if (!session)

  1274         return PEP_ILLEGAL_VALUE;

  1276     session->examine_management = management;

  1277     session->examine_identity = examine_identity;

  1279     return PEP_STATUS_OK;

  1280 }

  1282 DYNAMIC_API PEP_STATUS do_keymanagement(

  1283         retrieve_next_identity_t retrieve_next_identity,

  1284         void *management

  1285     )

  1286 {

  1287     PEP_SESSION session;

  1288     pEp_identity *identity;

  1289     PEP_STATUS status = init(&session, NULL, NULL);

  1290     assert(!status);

  1291     if (status)

  1292         return status;

  1294     assert(session && retrieve_next_identity);

  1295     if (!(session && retrieve_next_identity))

  1296         return PEP_ILLEGAL_VALUE;

  1298     log_event(session, "keymanagement thread started", "pEp engine", NULL, NULL);

  1300     while ((identity = retrieve_next_identity(management)))

  1301     {

  1302         assert(identity->address);

  1303         if(identity->address)

  1304         {

  1305             DEBUG_LOG("do_keymanagement", "retrieve_next_identity", identity->address);

  1307             if (identity->me) {

  1308                 status = myself(session, identity);

  1309             } else {

  1310                 status = recv_key(session, identity->address);

  1311             }

  1313             assert(status != PEP_OUT_OF_MEMORY);

  1314             if(status == PEP_OUT_OF_MEMORY)

  1315                 return PEP_OUT_OF_MEMORY;

  1316         }

  1317         free_identity(identity);

  1318     }

  1320     log_event(session, "keymanagement thread shutdown", "pEp engine", NULL, NULL);

  1321     release(session);

  1322     return PEP_STATUS_OK;

  1323 }

  1325 DYNAMIC_API PEP_STATUS key_mistrusted(

  1326         PEP_SESSION session,

  1327         pEp_identity *ident

  1328     )

  1329 {

  1330     PEP_STATUS status = PEP_STATUS_OK;

  1332     assert(session);

  1333     assert(ident);

  1334     assert(!EMPTYSTR(ident->fpr));

  1336     if (!(session && ident && ident->fpr))

  1337         return PEP_ILLEGAL_VALUE;

  1339     bool has_private = false;

  1341     status = contains_priv_key(session, ident->fpr, &has_private);

  1343     if (status != PEP_STATUS_OK && status != PEP_KEY_NOT_FOUND)

  1344         return status;

  1346     // See if key is revoked already

  1347     if (has_private) {

  1348         bool revoked = false;

  1349         status = key_revoked(session, ident->fpr, &revoked);

  1351         if (!revoked)

  1352             revoke_key(session, ident->fpr, NULL);

  1353     }

  1354     else {

  1355         if (ident->fpr) {

  1356             // Make sure there was a default in the DB for this identity;

  1357             // if not, set one, even though we're going to mistrust this. Otherwise,

  1358             // cannot reset.

  1359             pEp_identity* stored_ident = NULL;

  1360             get_identity(session, ident->address, ident->user_id, &stored_ident);

  1361             bool set_in_db = true;

  1362             if (!stored_ident)

  1363                 stored_ident = identity_dup(ident);

  1364             else if (!stored_ident->fpr)

  1365                 stored_ident->fpr = strdup(ident->fpr);

  1366             else

  1367                 set_in_db = false;

  1369             if (set_in_db)

  1370                 status = set_identity(session, stored_ident);

  1372             free_identity(stored_ident);

  1373             if (status != PEP_STATUS_OK)

  1374                 return status;

  1375         }

  1376     }

  1378     // double-check to be sure key is even in the DB

  1379     if (ident->fpr)

  1380         status = set_pgp_keypair(session, ident->fpr);

  1382     // We set this temporarily but will grab it back from the cache afterwards

  1383     ident->comm_type = PEP_ct_mistrusted;

  1384     status = set_trust(session, ident);

  1386     if (status == PEP_STATUS_OK)

  1387         // cascade that mistrust for anyone using this key

  1388         status = mark_as_compromised(session, ident->fpr);

  1389     if (status == PEP_STATUS_OK)

  1390         status = add_mistrusted_key(session, ident->fpr);

  1392     return status;

  1393 }

  1395 DYNAMIC_API PEP_STATUS key_reset_trust(

  1396         PEP_SESSION session,

  1397         pEp_identity *ident

  1398     )

  1399 {

  1400     PEP_STATUS status = PEP_STATUS_OK;

  1402     assert(session);

  1403     assert(ident);

  1404     assert(!EMPTYSTR(ident->fpr));

  1405     assert(!EMPTYSTR(ident->address));

  1406     assert(!EMPTYSTR(ident->user_id));

  1408     if (!(session && ident && ident->fpr && ident->fpr[0] != '\0' && ident->address &&

  1409             ident->user_id))

  1410         return PEP_ILLEGAL_VALUE;

  1412     // we do not change the input struct at ALL.

  1413     pEp_identity* input_copy = identity_dup(ident);

  1415     pEp_identity* tmp_ident = NULL;

  1417     status = get_trust(session, input_copy);

  1419     if (status != PEP_STATUS_OK)

  1420         goto pEp_free;

  1422     PEP_comm_type new_trust = PEP_ct_unknown;

  1423     status = get_key_rating(session, ident->fpr, &new_trust);

  1424     if (status != PEP_STATUS_OK)

  1425         goto pEp_free;

  1427     bool pEp_user = false;

  1429     status = is_pEp_user(session, ident, &pEp_user);

  1431     if (pEp_user && new_trust >= PEP_ct_unconfirmed_encryption)

  1432         input_copy->comm_type = PEP_ct_pEp_unconfirmed;

  1433     else

  1434         input_copy->comm_type = new_trust;

  1436     status = set_trust(session, input_copy);

  1438     if (status != PEP_STATUS_OK)

  1439         goto pEp_free;

  1441     bool mistrusted_key = false;

  1443     status = is_mistrusted_key(session, ident->fpr, &mistrusted_key);

  1445     if (status != PEP_STATUS_OK)

  1446         goto pEp_free;

  1448     if (mistrusted_key)

  1449         status = delete_mistrusted_key(session, ident->fpr);

  1451     if (status != PEP_STATUS_OK)

  1452         goto pEp_free;

  1454     tmp_ident = new_identity(ident->address, NULL, ident->user_id, NULL);

  1456     if (!tmp_ident)

  1457         return PEP_OUT_OF_MEMORY;

  1459     if (is_me(session, tmp_ident))

  1460         status = myself(session, tmp_ident);

  1461     else

  1462         status = update_identity(session, tmp_ident);

  1464     if (status != PEP_STATUS_OK)

  1465         goto pEp_free;

  1467     // remove as default if necessary

  1468     if (!EMPTYSTR(tmp_ident->fpr) && strcmp(tmp_ident->fpr, ident->fpr) == 0) {

  1469         free(tmp_ident->fpr);

  1470         tmp_ident->fpr = NULL;

  1471         tmp_ident->comm_type = PEP_ct_unknown;

  1472         status = set_identity(session, tmp_ident);

  1473         if (status != PEP_STATUS_OK)

  1474             goto pEp_free;

  1475     }

  1477     char* user_default = NULL;

  1478     get_main_user_fpr(session, tmp_ident->user_id, &user_default);

  1480     if (!EMPTYSTR(user_default)) {

  1481         if (strcmp(user_default, ident->fpr) == 0)

  1482             status = refresh_userid_default_key(session, ident->user_id);

  1483         if (status != PEP_STATUS_OK)

  1484             goto pEp_free;

  1485     }

  1487 pEp_free:

  1488     free_identity(tmp_ident);

  1489     free_identity(input_copy);

  1490     return status;

  1491 }

  1493 DYNAMIC_API PEP_STATUS trust_personal_key(

  1494         PEP_SESSION session,

  1495         pEp_identity *ident

  1496     )

  1497 {

  1498     PEP_STATUS status = PEP_STATUS_OK;

  1500     assert(session);

  1501     assert(ident);

  1502     assert(!EMPTYSTR(ident->address));

  1503     assert(!EMPTYSTR(ident->user_id));

  1504     assert(!EMPTYSTR(ident->fpr));

  1506     if (!ident || EMPTYSTR(ident->address) || EMPTYSTR(ident->user_id) ||

  1507             EMPTYSTR(ident->fpr))

  1508         return PEP_ILLEGAL_VALUE;

  1510     if (is_me(session, ident))

  1511         return PEP_ILLEGAL_VALUE;

  1513     char* ident_default_fpr = NULL;

  1515     // Before we do anything, be sure the input fpr is even eligible to be trusted

  1516     PEP_comm_type input_default_ct = PEP_ct_unknown;

  1517     status = get_key_rating(session, ident->fpr, &input_default_ct);

  1518     if (input_default_ct < PEP_ct_strong_but_unconfirmed)

  1519         return PEP_KEY_UNSUITABLE;

  1521     status = set_pgp_keypair(session, ident->fpr);

  1522     if (status != PEP_STATUS_OK)

  1523         return status;

  1525     pEp_identity* ident_copy = identity_dup(ident);

  1526     char* cached_fpr = NULL;

  1528     // for setting up a temp trusted identity for the input fpr

  1529     pEp_identity* tmp_id = NULL;

  1531     // For later, in case we need to check the user default key

  1532     pEp_identity* tmp_user_ident = NULL;

  1534     // Save the input fpr, which we already tested as non-NULL

  1535     cached_fpr = strdup(ident->fpr);

  1537     // Set up a temp trusted identity for the input fpr without a comm type;

  1538     tmp_id = new_identity(ident->address, ident->fpr, ident->user_id, NULL);

  1540     status = validate_fpr(session, tmp_id, false, true);

  1542     if (status == PEP_STATUS_OK) {

  1543         // Validate fpr gets trust DB or, when that fails, key comm type. we checked

  1544         // above that the key was ok. (not revoked or expired), but we want the max.

  1545         tmp_id->comm_type = _MAX(tmp_id->comm_type, input_default_ct) | PEP_ct_confirmed;

  1547         // Get the default identity without setting the fpr

  1548         status = update_identity(session, ident_copy);

  1550         ident_default_fpr = (EMPTYSTR(ident_copy->fpr) ? NULL : strdup(ident_copy->fpr));

  1552         if (status == PEP_STATUS_OK) {

  1553             bool trusted_default = false;

  1555             // If there's no default, or the default is different from the input...

  1556             if (EMPTYSTR(ident_default_fpr) || strcmp(cached_fpr, ident_default_fpr) != 0) {

  1558                 // If the default fpr (if there is one) is trusted and key is strong enough,

  1559                 // don't replace, we just set the trusted bit on this key for this user_id...

  1560                 // (If there's no default fpr, this won't be true anyway.)

  1561                 if ((ident_copy->comm_type >= PEP_ct_strong_but_unconfirmed &&

  1562                     (ident_copy->comm_type & PEP_ct_confirmed))) {

  1564                     trusted_default = true;

  1566                     status = set_trust(session, tmp_id);

  1567                     input_default_ct = tmp_id->comm_type;

  1568                 }

  1569                 else {

  1570                     free(ident_copy->fpr);

  1571                     ident_copy->fpr = strdup(cached_fpr);

  1572                     ident_copy->comm_type = tmp_id->comm_type;

  1573                     status = set_identity(session, ident_copy); // replace identity default

  1574                     if (status == PEP_STATUS_OK) {

  1575                         if ((ident_copy->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)

  1576                             status = set_as_pEp_user(session, ident_copy);

  1577                     }

  1578                 }

  1579             }

  1580             else { // we're setting this on the default fpr

  1581                 ident->comm_type = tmp_id->comm_type;

  1582                 status = set_identity(session, ident);

  1583                 trusted_default = true;

  1584             }

  1585             if (status == PEP_STATUS_OK && !trusted_default) {

  1586                 // Ok, there wasn't a trusted default, so we replaced. Thus, we also

  1587                 // make sure there's a trusted default on the user_id. If there

  1588                 // is not, we make this the default.

  1589                 char* user_default = NULL;

  1590                 status = get_main_user_fpr(session, ident->user_id, &user_default);

  1592                 if (status == PEP_STATUS_OK && user_default) {

  1593                     tmp_user_ident = new_identity(ident->address,

  1594                                                   user_default,

  1595                                                   ident->user_id,

  1596                                                   NULL);

  1597                     if (!tmp_user_ident)

  1598                         status = PEP_OUT_OF_MEMORY;

  1599                     else {

  1600                         status = validate_fpr(session, tmp_user_ident, false, true);

  1602                         if (status != PEP_STATUS_OK ||

  1603                             tmp_user_ident->comm_type < PEP_ct_strong_but_unconfirmed ||

  1604                             !(tmp_user_ident->comm_type & PEP_ct_confirmed))

  1605                         {

  1606                             char* trusted_fpr = (trusted_default ? ident_default_fpr : cached_fpr);

  1607                             status = replace_main_user_fpr(session, ident->user_id, trusted_fpr);

  1608                         }

  1609                     }

  1610                 }

  1611             }

  1612         }

  1613     }

  1615     free(ident_default_fpr);

  1616     free(cached_fpr);

  1617     free_identity(tmp_id);

  1618     free_identity(ident_copy);

  1619     free_identity(tmp_user_ident);

  1620     return status;

  1621 }

  1623 DYNAMIC_API PEP_STATUS trust_own_key(

  1624         PEP_SESSION session,

  1625         pEp_identity* ident

  1626     )

  1627 {

  1628     assert(session);

  1629     assert(ident);

  1630     assert(!EMPTYSTR(ident->address));

  1631     assert(!EMPTYSTR(ident->user_id));

  1632     assert(!EMPTYSTR(ident->fpr));

  1634     if (!ident || EMPTYSTR(ident->address) || EMPTYSTR(ident->user_id) ||

  1635             EMPTYSTR(ident->fpr))

  1636         return PEP_ILLEGAL_VALUE;

  1638     if (!is_me(session, ident))

  1639         return PEP_ILLEGAL_VALUE;

  1641     // don't check blacklist or require a private key

  1642     PEP_STATUS status = validate_fpr(session, ident, false, false);

  1644     if (status != PEP_STATUS_OK)

  1645         return status;

  1647     status = set_pgp_keypair(session, ident->fpr);

  1648     if (status != PEP_STATUS_OK)

  1649         return status;

  1651     if (ident->comm_type < PEP_ct_strong_but_unconfirmed)

  1652         return PEP_KEY_UNSUITABLE;

  1654     ident->comm_type |= PEP_ct_confirmed;

  1656     status = set_trust(session, ident);

  1658     return status;

  1659 }

  1662 DYNAMIC_API PEP_STATUS own_key_is_listed(

  1663         PEP_SESSION session,

  1664         const char *fpr,

  1665         bool *listed

  1666     )

  1667 {

  1668     PEP_STATUS status = PEP_STATUS_OK;

  1669     int count;

  1671     assert(session && fpr && fpr[0] && listed);

  1673     if (!(session && fpr && fpr[0] && listed))

  1674         return PEP_ILLEGAL_VALUE;

  1676     *listed = false;

  1678     sqlite3_reset(session->own_key_is_listed);

  1679     sqlite3_bind_text(session->own_key_is_listed, 1, fpr, -1, SQLITE_STATIC);

  1681     int result;

  1683     result = sqlite3_step(session->own_key_is_listed);

  1684     switch (result) {

  1685         case SQLITE_ROW:

  1686             count = sqlite3_column_int(session->own_key_is_listed, 0);

  1687             *listed = count > 0;

  1688             status = PEP_STATUS_OK;

  1689             break;

  1691         default:

  1692             status = PEP_UNKNOWN_ERROR;

  1693     }

  1695     sqlite3_reset(session->own_key_is_listed);

  1696     return status;

  1697 }

  1699 PEP_STATUS _own_identities_retrieve(

  1700         PEP_SESSION session,

  1701         identity_list **own_identities,

  1702         identity_flags_t excluded_flags

  1703       )

  1704 {

  1705     PEP_STATUS status = PEP_STATUS_OK;

  1707     assert(session && own_identities);

  1708     if (!(session && own_identities))

  1709         return PEP_ILLEGAL_VALUE;

  1711     *own_identities = NULL;

  1712     identity_list *_own_identities = new_identity_list(NULL);

  1713     if (_own_identities == NULL)

  1714         goto enomem;

  1716     sqlite3_reset(session->own_identities_retrieve);

  1718     int result;

  1719     // address, fpr, username, user_id, comm_type, lang, flags

  1720     const char *address = NULL;

  1721     const char *fpr = NULL;

  1722     const char *username = NULL;

  1723     const char *user_id = NULL;

  1724     PEP_comm_type comm_type = PEP_ct_unknown;

  1725     const char *lang = NULL;

  1726     unsigned int flags = 0;

  1728     identity_list *_bl = _own_identities;

  1730     sqlite3_bind_int(session->own_identities_retrieve, 1, excluded_flags);

  1732     do {

  1733         result = sqlite3_step(session->own_identities_retrieve);

  1734         switch (result) {

  1735             case SQLITE_ROW:

  1736                 address = (const char *)

  1737                     sqlite3_column_text(session->own_identities_retrieve, 0);

  1738                 fpr = (const char *)

  1739                     sqlite3_column_text(session->own_identities_retrieve, 1);

  1740                 user_id = (const char *)

  1741                     sqlite3_column_text(session->own_identities_retrieve, 2);

  1742                 username = (const char *)

  1743                     sqlite3_column_text(session->own_identities_retrieve, 3);

  1744                 comm_type = PEP_ct_pEp;

  1745                 lang = (const char *)

  1746                     sqlite3_column_text(session->own_identities_retrieve, 4);

  1747                 flags = (unsigned int)

  1748                     sqlite3_column_int(session->own_identities_retrieve, 5);

  1750                 pEp_identity *ident = new_identity(address, fpr, user_id, username);

  1751                 if (!ident)

  1752                     goto enomem;

  1753                 ident->comm_type = comm_type;

  1754                 if (lang && lang[0]) {

  1755                     ident->lang[0] = lang[0];

  1756                     ident->lang[1] = lang[1];

  1757                     ident->lang[2] = 0;

  1758                 }

  1759                 ident->me = true;

  1760                 ident->flags = flags;

  1762                 _bl = identity_list_add(_bl, ident);

  1763                 if (_bl == NULL) {

  1764                     free_identity(ident);

  1765                     goto enomem;

  1766                 }

  1768                 break;

  1770             case SQLITE_DONE:

  1771                 break;

  1773             default:

  1774                 status = PEP_UNKNOWN_ERROR;

  1775                 result = SQLITE_DONE;

  1776         }

  1777     } while (result != SQLITE_DONE);

  1779     sqlite3_reset(session->own_identities_retrieve);

  1780     if (status == PEP_STATUS_OK)

  1781         *own_identities = _own_identities;

  1782     else

  1783         free_identity_list(_own_identities);

  1785     goto the_end;

  1787 enomem:

  1788     free_identity_list(_own_identities);

  1789     status = PEP_OUT_OF_MEMORY;

  1791 the_end:

  1792     return status;

  1793 }

  1795 DYNAMIC_API PEP_STATUS own_identities_retrieve(

  1796         PEP_SESSION session,

  1797         identity_list **own_identities

  1798       )

  1799 {

  1800     return _own_identities_retrieve(session, own_identities, 0);

  1801 }

  1803 PEP_STATUS _own_keys_retrieve(

  1804         PEP_SESSION session,

  1805         stringlist_t **keylist,

  1806         identity_flags_t excluded_flags,

  1807         bool private_only

  1808       )

  1809 {

  1810     PEP_STATUS status = PEP_STATUS_OK;

  1812     assert(session && keylist);

  1813     if (!(session && keylist))

  1814         return PEP_ILLEGAL_VALUE;

  1816     *keylist = NULL;

  1817     stringlist_t *_keylist = NULL;

  1819     sqlite3_reset(session->own_keys_retrieve);

  1821     int result;

  1823     stringlist_t *_bl = _keylist;

  1824     sqlite3_bind_int(session->own_keys_retrieve, 1, excluded_flags);

  1826     do {

  1827         result = sqlite3_step(session->own_keys_retrieve);

  1828         switch (result) {

  1829             case SQLITE_ROW:

  1830                 _bl = stringlist_add(_bl, (const char *)

  1831                         sqlite3_column_text(session->own_keys_retrieve, 0));

  1832                 if (_bl == NULL)

  1833                     goto enomem;

  1834                 if (_keylist == NULL)

  1835                     _keylist = _bl;

  1836                 break;

  1838             case SQLITE_DONE:

  1839                 break;

  1841             default:

  1842                 status = PEP_UNKNOWN_ERROR;

  1843                 result = SQLITE_DONE;

  1844         }

  1845     } while (result != SQLITE_DONE);

  1847     sqlite3_reset(session->own_keys_retrieve);

  1848     if (status == PEP_STATUS_OK) {

  1849         dedup_stringlist(_keylist);

  1850         if (private_only) {

  1851             stringlist_t* _kl = _keylist;

  1852             stringlist_t* _kl_prev = NULL;

  1853             while (_kl) {

  1854                 bool has_private = false;

  1855                 contains_priv_key(session, _kl->value, &has_private);

  1856                 if (!has_private) {

  1857                     stringlist_t* _kl_tmp = _kl;

  1858                     if (_kl_prev)

  1859                         _kl_prev->next = _kl->next;

  1860                     else

  1861                         _keylist = _kl->next;

  1863                     _kl = _kl->next;

  1865                     _kl_tmp->next = NULL;

  1866                     free_stringlist(_kl_tmp);

  1867                     continue;

  1868                 }

  1869                 _kl_prev = _kl;

  1870                 _kl = _kl->next;

  1871             }

  1872         }

  1873         *keylist = _keylist;

  1874     }

  1875     else

  1876         free_stringlist(_keylist);

  1878     goto the_end;

  1880 enomem:

  1881     free_stringlist(_keylist);

  1882     status = PEP_OUT_OF_MEMORY;

  1884 the_end:

  1885     return status;

  1886 }

  1888 DYNAMIC_API PEP_STATUS own_keys_retrieve(PEP_SESSION session, stringlist_t **keylist)

  1889 {

  1890     return _own_keys_retrieve(session, keylist, 0, true);

  1891 }

  1893 DYNAMIC_API PEP_STATUS set_own_key(

  1894        PEP_SESSION session,

  1895        pEp_identity *me,

  1896        const char *fpr

  1897     )

  1898 {

  1899     PEP_STATUS status = PEP_STATUS_OK;

  1901     assert(session && me);

  1902     assert(!EMPTYSTR(fpr));

  1903     assert(!EMPTYSTR(me->address));

  1904     assert(!EMPTYSTR(me->user_id));

  1905     assert(!EMPTYSTR(me->username));

  1907     if (!session || !me || EMPTYSTR(fpr) || EMPTYSTR(me->address) ||

  1908             EMPTYSTR(me->user_id) || EMPTYSTR(me->username))

  1909         return PEP_ILLEGAL_VALUE;

  1911     if (me->fpr == fpr)

  1912         me->fpr = NULL;

  1914     status = _myself(session, me, false, true, false);

  1915     // we do not need a valid key but dislike other errors

  1916     if (status != PEP_STATUS_OK && status != PEP_GET_KEY_FAILED && status != PEP_KEY_UNSUITABLE)

  1917         return status;

  1918     status = PEP_STATUS_OK;

  1920     bool private = false;

  1921     status = contains_priv_key(session, fpr, &private);

  1923     if (status != PEP_STATUS_OK)

  1924         return status;

  1926     if (!private)

  1927         return PEP_KEY_UNSUITABLE;

  1929     if (me->fpr)

  1930         free(me->fpr);

  1931     me->fpr = strdup(fpr);

  1932     assert(me->fpr);

  1933     if (!me->fpr)

  1934         return PEP_OUT_OF_MEMORY;

  1936     status = validate_fpr(session, me, false, true);

  1937     if (status)

  1938         return status;

  1940     me->comm_type = PEP_ct_pEp;

  1941     status = set_identity(session, me);

  1942     return status;

  1943 }

  1945 PEP_STATUS contains_priv_key(PEP_SESSION session, const char *fpr,

  1946                              bool *has_private) {

  1948     assert(session);

  1949     assert(fpr);

  1950     assert(has_private);

  1952     if (!(session && fpr && has_private))

  1953         return PEP_ILLEGAL_VALUE;

  1955     return session->cryptotech[PEP_crypt_OpenPGP].contains_priv_key(session, fpr, has_private);

  1956 }

  1958 PEP_STATUS add_mistrusted_key(PEP_SESSION session, const char* fpr)

  1959 {

  1960     int result;

  1962     assert(!EMPTYSTR(fpr));

  1964     if (!(session) || EMPTYSTR(fpr))

  1965         return PEP_ILLEGAL_VALUE;

  1967     sqlite3_reset(session->add_mistrusted_key);

  1968     sqlite3_bind_text(session->add_mistrusted_key, 1, fpr, -1,

  1969             SQLITE_STATIC);

  1971     result = sqlite3_step(session->add_mistrusted_key);

  1972     sqlite3_reset(session->add_mistrusted_key);

  1974     if (result != SQLITE_DONE)

  1975         return PEP_CANNOT_SET_PGP_KEYPAIR; // FIXME: Better status?

  1977     return PEP_STATUS_OK;

  1978 }

  1980 PEP_STATUS delete_mistrusted_key(PEP_SESSION session, const char* fpr)

  1981 {

  1982     int result;

  1984     assert(!EMPTYSTR(fpr));

  1986     if (!(session) || EMPTYSTR(fpr))

  1987         return PEP_ILLEGAL_VALUE;

  1989     sqlite3_reset(session->delete_mistrusted_key);

  1990     sqlite3_bind_text(session->delete_mistrusted_key, 1, fpr, -1,

  1991             SQLITE_STATIC);

  1993     result = sqlite3_step(session->delete_mistrusted_key);

  1994     sqlite3_reset(session->delete_mistrusted_key);

  1996     if (result != SQLITE_DONE)

  1997         return PEP_UNKNOWN_ERROR; // FIXME: Better status?

  1999     return PEP_STATUS_OK;

  2000 }

  2002 PEP_STATUS is_mistrusted_key(PEP_SESSION session, const char* fpr,

  2003                              bool* mistrusted)

  2004 {

  2005     PEP_STATUS status = PEP_STATUS_OK;

  2007     assert(session);

  2008     assert(!EMPTYSTR(fpr));

  2010     if (!(session && fpr))

  2011         return PEP_ILLEGAL_VALUE;

  2013     *mistrusted = false;

  2015     sqlite3_reset(session->is_mistrusted_key);

  2016     sqlite3_bind_text(session->is_mistrusted_key, 1, fpr, -1, SQLITE_STATIC);

  2018     int result;

  2020     result = sqlite3_step(session->is_mistrusted_key);

  2021     switch (result) {

  2022     case SQLITE_ROW:

  2023         *mistrusted = sqlite3_column_int(session->is_mistrusted_key, 0);

  2024         status = PEP_STATUS_OK;

  2025         break;

  2027     default:

  2028         status = PEP_UNKNOWN_ERROR;

  2029     }

  2031     sqlite3_reset(session->is_mistrusted_key);

  2032     return status;

  2033 }

  2035 static PEP_STATUS _wipe_default_key_if_invalid(PEP_SESSION session,

  2036                                          pEp_identity* ident) {

  2038     PEP_STATUS status = PEP_STATUS_OK;

  2040     if (!ident->user_id)

  2041         return PEP_ILLEGAL_VALUE;

  2043     if (!ident->fpr)

  2044         return status;

  2046     char* cached_fpr = strdup(ident->fpr);

  2047     if (!ident->fpr)

  2048         return PEP_OUT_OF_MEMORY;

  2050     PEP_STATUS keystatus = validate_fpr(session, ident, true, false);

  2051     switch (keystatus) {

  2052         case PEP_STATUS_OK:

  2053             // Check for non-renewable expiry and

  2054             // if so, fallthrough

  2055             if (ident->comm_type != PEP_ct_key_expired_but_confirmed &&

  2056                     ident->comm_type != PEP_ct_key_expired) {

  2057                 break;

  2058             }

  2059         case PEP_KEY_UNSUITABLE:

  2060         case PEP_KEY_BLACKLISTED:

  2061             // Remove key as default for all identities and users

  2062             status = remove_fpr_as_default(session, cached_fpr);

  2063             break;

  2064         default:

  2065             break;

  2066     }

  2067     free(cached_fpr);

  2069     if (status == PEP_STATUS_OK)

  2070         status = myself(session, ident);

  2072     return status;

  2073 }

  2075 PEP_STATUS clean_own_key_defaults(PEP_SESSION session) {

  2076     identity_list* idents = NULL;

  2077     PEP_STATUS status = own_identities_retrieve(session, &idents);

  2078     if (status != PEP_STATUS_OK)

  2079         return status;

  2081     if (!idents)

  2082         return PEP_STATUS_OK;

  2084     if (!idents->ident && !idents->next) {

  2085         free_identity_list(idents);

  2086         return PEP_STATUS_OK;

  2087     } // Kludge: FIX own_identities_retrieve. Should return NULL, not empty list

  2089     identity_list* curr = idents;

  2091     for ( ; curr ; curr = curr->next) {

  2092         pEp_identity* ident = curr->ident;

  2093         if (!ident)

  2094             continue;

  2096         _wipe_default_key_if_invalid(session, ident);

  2097     }

  2099     free_identity_list(idents);

  2101     // Also remove invalid default user key

  2102     char* own_id = NULL;

  2104     status = get_default_own_userid(session, &own_id);

  2106     if (status != PEP_STATUS_OK)

  2107         return status;

  2109     if (own_id) {

  2110         char* user_default_key = NULL;

  2111         status = get_user_default_key(session, own_id, &user_default_key);

  2112         if (status != PEP_STATUS_OK) {

  2113             free(own_id);

  2114             if (status == PEP_KEY_NOT_FOUND)

  2115                 status = PEP_STATUS_OK;

  2116             else

  2117                 return status;

  2118         }

  2119         else if (user_default_key) {

  2120             pEp_identity* empty_user = new_identity(NULL, user_default_key, NULL, own_id);

  2121             _wipe_default_key_if_invalid(session, empty_user);

  2122             free(user_default_key);

  2123         }

  2124         free(own_id);

  2125     }

  2126     return status;

  2127 }

author	Krista 'DarthMama' Bennett <krista@pep.foundation>
	Mon, 13 Jul 2020 12:55:21 +0200
changeset 4852	308d29b0cac7
parent 4794	9efd9b998b57
child 4844	b63f3919f279
permissions	-rw-r--r--