repos/pEpEngine: src/keymanagement.c@3df9a2a67597

     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);

   578     if (return_id->comm_type == PEP_ct_unknown)

   579         return_id->comm_type = PEP_ct_key_not_found;

   581     return status;

   582 }

   584 DYNAMIC_API PEP_STATUS update_identity(

   585         PEP_SESSION session, pEp_identity * identity

   586     )

   587 {

   588     PEP_STATUS status;

   590     assert(session);

   591     assert(identity);

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

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

   595         return PEP_ILLEGAL_VALUE;

   597     char* default_own_id = NULL;

   598     status = get_default_own_userid(session, &default_own_id);

   600     bool is_own_user = identity->me;

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

   603     if (!is_own_user) {

   604         if (default_own_id) {

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

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

   607                     is_own_user = true;

   608                 }

   609                 else {

   610                     char* alias = NULL;

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

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

   613                             is_own_user = true;

   614                         free(alias);

   615                     }

   616                 }

   617             }

   618             else {

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

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

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

   622                 // NOTE: These semantics MAY CHANGE.

   623                 bool _own_addr = false;

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

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

   627                 // we also set is_own_user here and force PEP_ILLEGAL_VALUE

   628                 if (_own_addr) {

   629                     free(identity->user_id);

   630                     identity->user_id = strdup(default_own_id);

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

   632                 }

   633             }

   634         }

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

   636     }

   637     if (is_own_user)

   638     {

   639         free(default_own_id);

   640         return PEP_ILLEGAL_VALUE;

   641     }

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

   644     // Retrieve stored identity information!

   645     pEp_identity* stored_ident = NULL;

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

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

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

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

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

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

   654         // happens in multithreaded environments sometimes.

   655         if (!stored_ident) {

   656             identity_list* id_list = NULL;

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

   659             if (id_list) {

   660                 identity_list* id_curr = id_list;

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

   662                 while (id_curr) {

   663                     pEp_identity* this_id = id_curr->ident;

   664                     if (this_id) {

   665                         char* this_uid = this_id->user_id;

   666                         bool curr_is_TOFU = false;

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

   668                         // DB primary key

   669                         assert(!EMPTYSTR(this_uid));

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

   672                         if (curr_is_TOFU && !input_is_TOFU) {

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

   674                             // function here?

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

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

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

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

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

   681                                 (identity->username &&

   682                                  strcasecmp(identity->username,

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

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

   686                                 // with the real ID.

   687                                 status = replace_userid(session,

   688                                                         this_uid,

   689                                                         identity->user_id);

   690                                 if (status != PEP_STATUS_OK) {

   691                                     free_identity_list(id_list);

   692                                     free(default_own_id);

   693                                     return status;

   694                                 }

   696                                 free(this_uid);

   697                                 this_uid = NULL;

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

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

   701                                 stored_ident = this_id;

   702                                 // FIXME: free list.

   703                                 break;

   704                             }

   705                         }

   706                         else if (input_is_TOFU && !curr_is_TOFU) {

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

   708                             // BAD APP BEHAVIOUR.

   709                             free(identity->user_id);

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

   711                             stored_ident = this_id;

   712                             // FIXME: free list.

   713                             break;

   714                         }

   715                     }

   716                     id_curr = id_curr->next;

   717                 }

   718             }

   719         }

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

   722             //  * if identity available

   723             //      * patch it with username

   724             //          (note: this will happen when

   725             //           setting automatically below...)

   726             //      * elect valid key for identity

   727             //    * if valid key exists

   728             //        * set return value's fpr

   729             status = prepare_updated_identity(session,

   730                                               identity,

   731                                               stored_ident, true);

   732         }

   733         //  * else (identity unavailable)

   734         else {

   735             status = PEP_STATUS_OK;

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

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

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

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

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

   742                 free(identity->username);

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

   744             }

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

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

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

   750             elect_pubkey(session, identity, false);

   752             //    * We've already checked and retrieved

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

   754             //      here, none of them fit.

   755             //    * call set_identity() to store

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

   757             adjust_pEp_trust_status(session, identity);

   758             status = set_identity(session, identity);

   759             //  * Return: created identity

   760         }

   761     }

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

   763         /*

   764          * Temporary identity information with username supplied

   765             * Input: address, username (no others)

   766          */

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

   769         //    prefer that

   770         stored_ident = NULL;

   772         if (default_own_id) {

   773             status = get_identity(session,

   774                                   identity->address,

   775                                   default_own_id,

   776                                   &stored_ident);

   777         }

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

   779         // with this address.

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

   782             identity_list* id_list = NULL;

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

   785             if (id_list) {

   786                 identity_list* id_curr = id_list;

   787                 while (id_curr) {

   788                     pEp_identity* this_id = id_curr->ident;

   789                     if (this_id) {

   790                         char* this_uid = this_id->user_id;

   791                         assert(!EMPTYSTR(this_uid));

   792                         // Should never be NULL - DB primary key

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

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

   796                             if (identity->username &&

   797                                 strcasecmp(identity->username,

   798                                            this_id->username) == 0) {

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

   801                                 identity->user_id = strdup(this_uid);

   802                                 assert(identity->user_id);

   803                                 if (!identity->user_id)

   804                                     goto enomem;

   806                                 stored_ident = this_id;

   808                                 break;

   809                             }

   810                         }

   811                     }

   812                     id_curr = id_curr->next;

   813                 }

   814             }

   815         }

   817         if (stored_ident) {

   818             status = prepare_updated_identity(session,

   819                                               identity,

   820                                               stored_ident, true);

   821         }

   822         else {

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

   824             if (!identity->user_id)

   825                 goto enomem;

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

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

   830             status = get_identity(session,

   831                                   identity->address,

   832                                   identity->user_id,

   833                                   &stored_ident);

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

   836                 status = prepare_updated_identity(session,

   837                                                   identity,

   838                                                   stored_ident, true);

   839             }

   840             else {

   842                 //    * We've already checked and retrieved

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

   844                 //      here, none of them fit.

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

   848                 //    * call set_identity() to store

   849                 if (identity->fpr) {

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

   851                     status = get_trust(session, identity);

   852                     PEP_comm_type db_ct = identity->comm_type;

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

   854                     PEP_comm_type key_ct = identity->comm_type;

   856                     if (status == PEP_STATUS_OK) {

   857                         switch (key_ct) {

   858                             case PEP_ct_key_expired:

   859                                 if (db_ct == PEP_ct_key_expired_but_confirmed)

   860                                     identity->comm_type = db_ct;

   861                                 break;

   862                             default:

   863                                 switch(db_ct) {

   864                                     case PEP_ct_key_expired_but_confirmed:

   865                                         if (key_ct >= PEP_ct_strong_but_unconfirmed)

   866                                             identity->comm_type |= PEP_ct_confirmed;

   867                                         break;

   868                                     case PEP_ct_mistrusted:

   869                                     case PEP_ct_compromised:

   870                                     case PEP_ct_key_b0rken:

   871                                         identity->comm_type = db_ct;

   872                                     default:

   873                                         break;

   874                                 }

   875                                 break;

   876                         }

   877                     }

   878                 }

   879                 //    * call set_identity() to store

   880                 adjust_pEp_trust_status(session, identity);

   881                 status = set_identity(session, identity);

   882             }

   883         }

   884     }

   885     else {

   886         /*

   887         * Input: address (no others)

   888          * Temporary identity information without username suplied

   889          */

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

   892         //    prefer that

   893         stored_ident = NULL;

   895         if (default_own_id) {

   896             status = get_identity(session,

   897                                   identity->address,

   898                                   default_own_id,

   899                                   &stored_ident);

   900         }

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

   902         // with this address.

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

   905             identity_list* id_list = NULL;

   906             //    * Search for identity with this address

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

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

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

   911             if (id_list) {

   912                 if (stored_ident) // unlikely

   913                     free_identity(stored_ident);

   914                 stored_ident = id_list->ident;

   915             }

   916         }

   917         if (stored_ident)

   918             status = prepare_updated_identity(session, identity,

   919                                               stored_ident, false);

   920         else  {

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

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

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

   925             // This means TOFU_ user_id

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

   927             if (!identity->user_id)

   928                 goto enomem;

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

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

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

   934             if (!identity->address)

   935                 goto enomem;

   937             free(identity->fpr);

   938             identity->fpr = NULL;

   939             identity->comm_type = PEP_ct_unknown;

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

   943             if (identity->fpr)

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

   946             //    * call set_identity() to store

   947             adjust_pEp_trust_status(session, identity);

   948             status = set_identity(session, identity);

   950         }

   951     }

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

   954     // Revisit once I can talk to Volker

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

   956         identity->comm_type < PEP_ct_strong_but_unconfirmed)

   957         if (session->examine_identity)

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

   960     goto pEp_free;

   962 enomem:

   963     status = PEP_OUT_OF_MEMORY;

   965 pEp_free:

   966     free(default_own_id);

   967     free_identity(stored_ident);

   968     return status;

   969 }

   971 PEP_STATUS elect_ownkey(

   972         PEP_SESSION session, pEp_identity * identity

   973     )

   974 {

   975     PEP_STATUS status;

   976     stringlist_t *keylist = NULL;

   978     free(identity->fpr);

   979     identity->fpr = NULL;

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

   982     assert(status != PEP_OUT_OF_MEMORY);

   983     if (status == PEP_OUT_OF_MEMORY)

   984         return PEP_OUT_OF_MEMORY;

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

   987     {

   988         char *_fpr = NULL;

   989         identity->comm_type = PEP_ct_unknown;

   991         stringlist_t *_keylist;

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

   993             bool is_own = false;

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

   996             assert(status == PEP_STATUS_OK);

   997             if (status != PEP_STATUS_OK) {

   998                 free_stringlist(keylist);

   999                 return status;

  1000             }

  1002             if (is_own)

  1003             {

  1004                 PEP_comm_type _comm_type_key;

  1006                 status = get_key_rating(session, _keylist->value, &_comm_type_key);

  1007                 assert(status != PEP_OUT_OF_MEMORY);

  1008                 if (status == PEP_OUT_OF_MEMORY) {

  1009                     free_stringlist(keylist);

  1010                     return PEP_OUT_OF_MEMORY;

  1011                 }

  1013                 if (_comm_type_key != PEP_ct_compromised &&

  1014                     _comm_type_key != PEP_ct_unknown)

  1015                 {

  1016                     if (identity->comm_type == PEP_ct_unknown ||

  1017                         _comm_type_key > identity->comm_type)

  1018                     {

  1019                         identity->comm_type = _comm_type_key;

  1020                         _fpr = _keylist->value;

  1021                     }

  1022                 }

  1023             }

  1024         }

  1026         if (_fpr)

  1027         {

  1028             identity->fpr = strdup(_fpr);

  1029             assert(identity->fpr);

  1030             if (identity->fpr == NULL)

  1031             {

  1032                 free_stringlist(keylist);

  1033                 return PEP_OUT_OF_MEMORY;

  1034             }

  1035         }

  1036         free_stringlist(keylist);

  1037     }

  1038     return PEP_STATUS_OK;

  1039 }

  1041 PEP_STATUS _has_usable_priv_key(PEP_SESSION session, char* fpr,

  1042                                 bool* is_usable) {

  1044     bool has_private = false;

  1045     PEP_STATUS status = contains_priv_key(session, fpr, &has_private);

  1047     *is_usable = has_private;

  1049     return status;

  1050 }

  1052 PEP_STATUS _myself(PEP_SESSION session,

  1053                    pEp_identity * identity,

  1054                    bool do_keygen,

  1055                    bool ignore_flags,

  1056                    bool read_only)

  1057 {

  1059     PEP_STATUS status;

  1061     assert(session);

  1062     assert(identity);

  1063     assert(!EMPTYSTR(identity->address));

  1065     if (!session || EMPTYSTR(identity->address))

  1066         return PEP_ILLEGAL_VALUE;

  1068     // this is leading to crashes otherwise

  1070     if (!(identity->user_id && identity->user_id[0])) {

  1071         free(identity->user_id);

  1072         identity->user_id = strdup(PEP_OWN_USERID);

  1073         assert(identity->user_id);

  1074         if (!identity->user_id)

  1075             return PEP_OUT_OF_MEMORY;

  1076     }

  1078     pEp_identity *stored_identity = NULL;

  1079     char* revoked_fpr = NULL;

  1080     bool valid_key_found = false;

  1082     char* default_own_id = NULL;

  1083     status = get_default_own_userid(session, &default_own_id);

  1085     // Deal with non-default user_ids.

  1086     // FIXME: if non-default and read-only, reject totally?

  1087     if (default_own_id && strcmp(default_own_id, identity->user_id) != 0) {

  1088         if (read_only) {

  1089             free(identity->user_id);

  1090             identity->user_id = strdup(default_own_id);

  1091             assert(identity->user_id);

  1092             if (!identity->user_id)

  1093                 return PEP_OUT_OF_MEMORY;

  1094         }

  1095         else {

  1096             status = set_userid_alias(session, default_own_id, identity->user_id);

  1097             // Do we want this to be fatal? For now, we'll do it...

  1098             if (status != PEP_STATUS_OK)

  1099                 goto pEp_free;

  1101             free(identity->user_id);

  1102             identity->user_id = strdup(default_own_id);

  1103             assert(identity->user_id);

  1104             if (identity->user_id == NULL) {

  1105                 status = PEP_OUT_OF_MEMORY;

  1106                 goto pEp_free;

  1107             }

  1108         }

  1109     }

  1111     // NOTE: IF WE DON'T YET HAVE AN OWN_ID, WE IGNORE REFERENCES TO THIS ADDRESS IN THE

  1112     // DB (WHICH MAY HAVE BEEN SET BEFORE MYSELF WAS CALLED BY RECEIVING AN EMAIL FROM

  1113     // THIS ADDRESS), AS IT IS NOT AN OWN_IDENTITY AND HAS NO INFORMATION WE NEED OR WHAT TO

  1114     // SET FOR MYSELF

  1116     // Ok, so now, set up the own_identity:

  1117     identity->comm_type = PEP_ct_pEp;

  1118     identity->me = true;

  1119     if(ignore_flags)

  1120         identity->flags = 0;

  1122     // Let's see if we have an identity record in the DB for

  1123     // this user_id + address

  1124 //    DEBUG_LOG("myself", "debug", identity->address);

  1126     // This will grab the actual flags from the db

  1127     status = get_identity(session,

  1128                           identity->address,

  1129                           identity->user_id,

  1130                           &stored_identity);

  1132     assert(status != PEP_OUT_OF_MEMORY);

  1133     if (status == PEP_OUT_OF_MEMORY) {

  1134         status = PEP_OUT_OF_MEMORY;

  1135         goto pEp_free;

  1136     }

  1138     // Set usernames - priority is input username > stored name > address

  1139     // If there's an input username, we always patch the username with that

  1140     // input.

  1141     if (EMPTYSTR(identity->username) || read_only) {

  1142         bool stored_uname = (stored_identity && !EMPTYSTR(stored_identity->username));

  1143         char* uname = (stored_uname ? stored_identity->username : identity->address);

  1144         if (uname) {

  1145             free(identity->username);

  1146             identity->username = strdup(uname);

  1147             assert(identity->username);

  1148             if (identity->username == NULL) {

  1149                 status = PEP_OUT_OF_MEMORY;

  1150                 goto pEp_free;

  1151             }

  1152         }

  1153     }

  1155     // ignore input fpr

  1157     if (identity->fpr) {

  1158         free(identity->fpr);

  1159         identity->fpr = NULL;

  1160     }

  1162     // check stored identity

  1163     if (stored_identity) {

  1164         if (!EMPTYSTR(stored_identity->fpr)) {

  1165             // Fall back / retrieve

  1166             status = validate_fpr(session, stored_identity, false, true);

  1167             if (status == PEP_OUT_OF_MEMORY)

  1168                 goto pEp_free;

  1169             if (status == PEP_STATUS_OK) {

  1170                 if (stored_identity->comm_type >= PEP_ct_strong_but_unconfirmed) {

  1171                     identity->fpr = strdup(stored_identity->fpr);

  1172                     assert(identity->fpr);

  1173                     if (!identity->fpr) {

  1174                         status = PEP_OUT_OF_MEMORY;

  1175                         goto pEp_free;

  1176                     }

  1177                     valid_key_found = true;

  1178                 }

  1179                 else {

  1180                     bool revoked = false;

  1181                     status = key_revoked(session, stored_identity->fpr, &revoked);

  1182                     if (status)

  1183                         goto pEp_free;

  1184                     if (revoked) {

  1185                         revoked_fpr = strdup(stored_identity->fpr);

  1186                         assert(revoked_fpr);

  1187                         if (!revoked_fpr) {

  1188                             status = PEP_OUT_OF_MEMORY;

  1189                             goto pEp_free;

  1190                         }

  1191                     }

  1192                 }

  1193             }

  1194         }

  1195         // reconcile language, flags

  1196         transfer_ident_lang_and_flags(identity, stored_identity);

  1197     }

  1199     // Nothing left to do but generate a key

  1200     if (!valid_key_found) {

  1201         if (!do_keygen || read_only)

  1202             status = PEP_GET_KEY_FAILED;

  1203         else {

  1204 // /            DEBUG_LOG("Generating key pair", "debug", identity->address);

  1206             free(identity->fpr);

  1207             identity->fpr = NULL;

  1208             status = generate_keypair(session, identity);

  1209             assert(status != PEP_OUT_OF_MEMORY);

  1211             if (status != PEP_STATUS_OK) {

  1212                 char buf[11];

  1213                 snprintf(buf, 11, "%d", status); // uh, this is kludgey. FIXME

  1214 //                DEBUG_LOG("Generating key pair failed", "debug", buf);

  1215             }

  1216             else {

  1217                 valid_key_found = true;

  1218                 if (revoked_fpr) {

  1219                     status = set_revoked(session, revoked_fpr,

  1220                                          stored_identity->fpr, time(NULL));

  1221                     assert(status == PEP_STATUS_OK);

  1222                 }

  1223             }

  1224         }

  1225     }

  1227     if (valid_key_found) {

  1228         identity->comm_type = PEP_ct_pEp;

  1229         status = PEP_STATUS_OK;

  1230     }

  1231     else {

  1232         free(identity->fpr);

  1233         identity->fpr = NULL;

  1234         identity->comm_type = PEP_ct_unknown;

  1235     }

  1237     unsigned int major_ver = 0;

  1238     unsigned int minor_ver = 0;

  1239     pEp_version_major_minor(PEP_VERSION, &major_ver, &minor_ver);

  1240     identity->major_ver = major_ver;

  1241     identity->minor_ver = minor_ver;

  1243     // We want to set an identity in the DB even if a key isn't found, but we have to preserve the status if

  1244     // it's NOT ok

  1245     if (!read_only) {

  1246         PEP_STATUS set_id_status = set_identity(session, identity);

  1247         if (set_id_status == PEP_STATUS_OK)

  1248             set_id_status = set_as_pEp_user(session, identity);

  1250         status = (status == PEP_STATUS_OK ? set_id_status : status);

  1251     }

  1253 pEp_free:

  1254     free(default_own_id);

  1255     free(revoked_fpr);

  1256     free_identity(stored_identity);

  1257     return status;

  1258 }

  1260 DYNAMIC_API PEP_STATUS myself(PEP_SESSION session, pEp_identity * identity)

  1261 {

  1262     return _myself(session, identity, true, false, false);

  1263 }

  1265 DYNAMIC_API PEP_STATUS register_examine_function(

  1266         PEP_SESSION session,

  1267         examine_identity_t examine_identity,

  1268         void *management

  1269     )

  1270 {

  1271     assert(session);

  1272     if (!session)

  1273         return PEP_ILLEGAL_VALUE;

  1275     session->examine_management = management;

  1276     session->examine_identity = examine_identity;

  1278     return PEP_STATUS_OK;

  1279 }

  1281 DYNAMIC_API PEP_STATUS do_keymanagement(

  1282         retrieve_next_identity_t retrieve_next_identity,

  1283         void *management

  1284     )

  1285 {

  1286     PEP_SESSION session;

  1287     pEp_identity *identity;

  1288     PEP_STATUS status = init(&session, NULL, NULL);

  1289     assert(!status);

  1290     if (status)

  1291         return status;

  1293     assert(session && retrieve_next_identity);

  1294     if (!(session && retrieve_next_identity))

  1295         return PEP_ILLEGAL_VALUE;

  1297     log_event(session, "keymanagement thread started", "pEp engine", NULL, NULL);

  1299     while ((identity = retrieve_next_identity(management)))

  1300     {

  1301         assert(identity->address);

  1302         if(identity->address)

  1303         {

  1304             DEBUG_LOG("do_keymanagement", "retrieve_next_identity", identity->address);

  1306             if (identity->me) {

  1307                 status = myself(session, identity);

  1308             } else {

  1309                 status = recv_key(session, identity->address);

  1310             }

  1312             assert(status != PEP_OUT_OF_MEMORY);

  1313             if(status == PEP_OUT_OF_MEMORY)

  1314                 return PEP_OUT_OF_MEMORY;

  1315         }

  1316         free_identity(identity);

  1317     }

  1319     log_event(session, "keymanagement thread shutdown", "pEp engine", NULL, NULL);

  1320     release(session);

  1321     return PEP_STATUS_OK;

  1322 }

  1324 DYNAMIC_API PEP_STATUS key_mistrusted(

  1325         PEP_SESSION session,

  1326         pEp_identity *ident

  1327     )

  1328 {

  1329     PEP_STATUS status = PEP_STATUS_OK;

  1331     assert(session);

  1332     assert(ident);

  1333     assert(!EMPTYSTR(ident->fpr));

  1335     if (!(session && ident && ident->fpr))

  1336         return PEP_ILLEGAL_VALUE;

  1338     bool has_private = false;

  1340     status = contains_priv_key(session, ident->fpr, &has_private);

  1342     if (status != PEP_STATUS_OK && status != PEP_KEY_NOT_FOUND)

  1343         return status;

  1345     // See if key is revoked already

  1346     if (has_private) {

  1347         bool revoked = false;

  1348         status = key_revoked(session, ident->fpr, &revoked);

  1350         if (!revoked)

  1351             revoke_key(session, ident->fpr, NULL);

  1352     }

  1353     else {

  1354         if (ident->fpr) {

  1355             // Make sure there was a default in the DB for this identity;

  1356             // if not, set one, even though we're going to mistrust this. Otherwise,

  1357             // cannot reset.

  1358             pEp_identity* stored_ident = NULL;

  1359             get_identity(session, ident->address, ident->user_id, &stored_ident);

  1360             bool set_in_db = true;

  1361             if (!stored_ident)

  1362                 stored_ident = identity_dup(ident);

  1363             else if (!stored_ident->fpr)

  1364                 stored_ident->fpr = strdup(ident->fpr);

  1365             else

  1366                 set_in_db = false;

  1368             if (set_in_db)

  1369                 status = set_identity(session, stored_ident);

  1371             free_identity(stored_ident);

  1372             if (status != PEP_STATUS_OK)

  1373                 return status;

  1374         }

  1375     }

  1377     // double-check to be sure key is even in the DB

  1378     if (ident->fpr)

  1379         status = set_pgp_keypair(session, ident->fpr);

  1381     // We set this temporarily but will grab it back from the cache afterwards

  1382     ident->comm_type = PEP_ct_mistrusted;

  1383     status = set_trust(session, ident);

  1385     if (status == PEP_STATUS_OK)

  1386         // cascade that mistrust for anyone using this key

  1387         status = mark_as_compromised(session, ident->fpr);

  1388     if (status == PEP_STATUS_OK)

  1389         status = add_mistrusted_key(session, ident->fpr);

  1391     return status;

  1392 }

  1394 DYNAMIC_API PEP_STATUS key_reset_trust(

  1395         PEP_SESSION session,

  1396         pEp_identity *ident

  1397     )

  1398 {

  1399     PEP_STATUS status = PEP_STATUS_OK;

  1401     assert(session);

  1402     assert(ident);

  1403     assert(!EMPTYSTR(ident->fpr));

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

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

  1407     if (!(session && ident && ident->fpr && ident->fpr[0] != '\0' && ident->address &&

  1408             ident->user_id))

  1409         return PEP_ILLEGAL_VALUE;

  1411     // we do not change the input struct at ALL.

  1412     pEp_identity* input_copy = identity_dup(ident);

  1414     pEp_identity* tmp_ident = NULL;

  1416     status = get_trust(session, input_copy);

  1418     if (status != PEP_STATUS_OK)

  1419         goto pEp_free;

  1421     PEP_comm_type new_trust = PEP_ct_unknown;

  1422     status = get_key_rating(session, ident->fpr, &new_trust);

  1423     if (status != PEP_STATUS_OK)

  1424         goto pEp_free;

  1426     bool pEp_user = false;

  1428     status = is_pEp_user(session, ident, &pEp_user);

  1430     if (pEp_user && new_trust >= PEP_ct_unconfirmed_encryption)

  1431         input_copy->comm_type = PEP_ct_pEp_unconfirmed;

  1432     else

  1433         input_copy->comm_type = new_trust;

  1435     status = set_trust(session, input_copy);

  1437     if (status != PEP_STATUS_OK)

  1438         goto pEp_free;

  1440     bool mistrusted_key = false;

  1442     status = is_mistrusted_key(session, ident->fpr, &mistrusted_key);

  1444     if (status != PEP_STATUS_OK)

  1445         goto pEp_free;

  1447     if (mistrusted_key)

  1448         status = delete_mistrusted_key(session, ident->fpr);

  1450     if (status != PEP_STATUS_OK)

  1451         goto pEp_free;

  1453     tmp_ident = new_identity(ident->address, NULL, ident->user_id, NULL);

  1455     if (!tmp_ident)

  1456         return PEP_OUT_OF_MEMORY;

  1458     if (is_me(session, tmp_ident))

  1459         status = myself(session, tmp_ident);

  1460     else

  1461         status = update_identity(session, tmp_ident);

  1463     if (status != PEP_STATUS_OK)

  1464         goto pEp_free;

  1466     // remove as default if necessary

  1467     if (!EMPTYSTR(tmp_ident->fpr) && strcmp(tmp_ident->fpr, ident->fpr) == 0) {

  1468         free(tmp_ident->fpr);

  1469         tmp_ident->fpr = NULL;

  1470         tmp_ident->comm_type = PEP_ct_unknown;

  1471         status = set_identity(session, tmp_ident);

  1472         if (status != PEP_STATUS_OK)

  1473             goto pEp_free;

  1474     }

  1476     char* user_default = NULL;

  1477     get_main_user_fpr(session, tmp_ident->user_id, &user_default);

  1479     if (!EMPTYSTR(user_default)) {

  1480         if (strcmp(user_default, ident->fpr) == 0)

  1481             status = refresh_userid_default_key(session, ident->user_id);

  1482         if (status != PEP_STATUS_OK)

  1483             goto pEp_free;

  1484     }

  1486 pEp_free:

  1487     free_identity(tmp_ident);

  1488     free_identity(input_copy);

  1489     return status;

  1490 }

  1492 DYNAMIC_API PEP_STATUS trust_personal_key(

  1493         PEP_SESSION session,

  1494         pEp_identity *ident

  1495     )

  1496 {

  1497     PEP_STATUS status = PEP_STATUS_OK;

  1499     assert(session);

  1500     assert(ident);

  1501     assert(!EMPTYSTR(ident->address));

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

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

  1505     if (!ident || EMPTYSTR(ident->address) || EMPTYSTR(ident->user_id) ||

  1506             EMPTYSTR(ident->fpr))

  1507         return PEP_ILLEGAL_VALUE;

  1509     if (is_me(session, ident))

  1510         return PEP_ILLEGAL_VALUE;

  1512     char* ident_default_fpr = NULL;

  1514     // Before we do anything, be sure the input fpr is even eligible to be trusted

  1515     PEP_comm_type input_default_ct = PEP_ct_unknown;

  1516     status = get_key_rating(session, ident->fpr, &input_default_ct);

  1517     if (input_default_ct < PEP_ct_strong_but_unconfirmed)

  1518         return PEP_KEY_UNSUITABLE;

  1520     status = set_pgp_keypair(session, ident->fpr);

  1521     if (status != PEP_STATUS_OK)

  1522         return status;

  1524     pEp_identity* ident_copy = identity_dup(ident);

  1525     char* cached_fpr = NULL;

  1527     // for setting up a temp trusted identity for the input fpr

  1528     pEp_identity* tmp_id = NULL;

  1530     // For later, in case we need to check the user default key

  1531     pEp_identity* tmp_user_ident = NULL;

  1533     // Save the input fpr, which we already tested as non-NULL

  1534     cached_fpr = strdup(ident->fpr);

  1536     // Set up a temp trusted identity for the input fpr without a comm type;

  1537     tmp_id = new_identity(ident->address, ident->fpr, ident->user_id, NULL);

  1539     status = validate_fpr(session, tmp_id, false, true);

  1541     if (status == PEP_STATUS_OK) {

  1542         // Validate fpr gets trust DB or, when that fails, key comm type. we checked

  1543         // above that the key was ok. (not revoked or expired), but we want the max.

  1544         tmp_id->comm_type = _MAX(tmp_id->comm_type, input_default_ct) | PEP_ct_confirmed;

  1546         // Get the default identity without setting the fpr

  1547         status = update_identity(session, ident_copy);

  1549         ident_default_fpr = (EMPTYSTR(ident_copy->fpr) ? NULL : strdup(ident_copy->fpr));

  1551         if (status == PEP_STATUS_OK) {

  1552             bool trusted_default = false;

  1554             // If there's no default, or the default is different from the input...

  1555             if (EMPTYSTR(ident_default_fpr) || strcmp(cached_fpr, ident_default_fpr) != 0) {

  1557                 // If the default fpr (if there is one) is trusted and key is strong enough,

  1558                 // don't replace, we just set the trusted bit on this key for this user_id...

  1559                 // (If there's no default fpr, this won't be true anyway.)

  1560                 if ((ident_copy->comm_type >= PEP_ct_strong_but_unconfirmed &&

  1561                     (ident_copy->comm_type & PEP_ct_confirmed))) {

  1563                     trusted_default = true;

  1565                     status = set_trust(session, tmp_id);

  1566                     input_default_ct = tmp_id->comm_type;

  1567                 }

  1568                 else {

  1569                     free(ident_copy->fpr);

  1570                     ident_copy->fpr = strdup(cached_fpr);

  1571                     ident_copy->comm_type = tmp_id->comm_type;

  1572                     status = set_identity(session, ident_copy); // replace identity default

  1573                     if (status == PEP_STATUS_OK) {

  1574                         if ((ident_copy->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)

  1575                             status = set_as_pEp_user(session, ident_copy);

  1576                     }

  1577                 }

  1578             }

  1579             else { // we're setting this on the default fpr

  1580                 ident->comm_type = tmp_id->comm_type;

  1581                 status = set_identity(session, ident);

  1582                 trusted_default = true;

  1583             }

  1584             if (status == PEP_STATUS_OK && !trusted_default) {

  1585                 // Ok, there wasn't a trusted default, so we replaced. Thus, we also

  1586                 // make sure there's a trusted default on the user_id. If there

  1587                 // is not, we make this the default.

  1588                 char* user_default = NULL;

  1589                 status = get_main_user_fpr(session, ident->user_id, &user_default);

  1591                 if (status == PEP_STATUS_OK && user_default) {

  1592                     tmp_user_ident = new_identity(ident->address,

  1593                                                   user_default,

  1594                                                   ident->user_id,

  1595                                                   NULL);

  1596                     if (!tmp_user_ident)

  1597                         status = PEP_OUT_OF_MEMORY;

  1598                     else {

  1599                         status = validate_fpr(session, tmp_user_ident, false, true);

  1601                         if (status != PEP_STATUS_OK ||

  1602                             tmp_user_ident->comm_type < PEP_ct_strong_but_unconfirmed ||

  1603                             !(tmp_user_ident->comm_type & PEP_ct_confirmed))

  1604                         {

  1605                             char* trusted_fpr = (trusted_default ? ident_default_fpr : cached_fpr);

  1606                             status = replace_main_user_fpr(session, ident->user_id, trusted_fpr);

  1607                         }

  1608                     }

  1609                 }

  1610             }

  1611         }

  1612     }

  1614     free(ident_default_fpr);

  1615     free(cached_fpr);

  1616     free_identity(tmp_id);

  1617     free_identity(ident_copy);

  1618     free_identity(tmp_user_ident);

  1619     return status;

  1620 }

  1622 DYNAMIC_API PEP_STATUS trust_own_key(

  1623         PEP_SESSION session,

  1624         pEp_identity* ident

  1625     )

  1626 {

  1627     assert(session);

  1628     assert(ident);

  1629     assert(!EMPTYSTR(ident->address));

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

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

  1633     if (!ident || EMPTYSTR(ident->address) || EMPTYSTR(ident->user_id) ||

  1634             EMPTYSTR(ident->fpr))

  1635         return PEP_ILLEGAL_VALUE;

  1637     if (!is_me(session, ident))

  1638         return PEP_ILLEGAL_VALUE;

  1640     // don't check blacklist or require a private key

  1641     PEP_STATUS status = validate_fpr(session, ident, false, false);

  1643     if (status != PEP_STATUS_OK)

  1644         return status;

  1646     status = set_pgp_keypair(session, ident->fpr);

  1647     if (status != PEP_STATUS_OK)

  1648         return status;

  1650     if (ident->comm_type < PEP_ct_strong_but_unconfirmed)

  1651         return PEP_KEY_UNSUITABLE;

  1653     ident->comm_type |= PEP_ct_confirmed;

  1655     status = set_trust(session, ident);

  1657     return status;

  1658 }

  1661 DYNAMIC_API PEP_STATUS own_key_is_listed(

  1662         PEP_SESSION session,

  1663         const char *fpr,

  1664         bool *listed

  1665     )

  1666 {

  1667     PEP_STATUS status = PEP_STATUS_OK;

  1668     int count;

  1670     assert(session && fpr && fpr[0] && listed);

  1672     if (!(session && fpr && fpr[0] && listed))

  1673         return PEP_ILLEGAL_VALUE;

  1675     *listed = false;

  1677     sqlite3_reset(session->own_key_is_listed);

  1678     sqlite3_bind_text(session->own_key_is_listed, 1, fpr, -1, SQLITE_STATIC);

  1680     int result;

  1682     result = sqlite3_step(session->own_key_is_listed);

  1683     switch (result) {

  1684         case SQLITE_ROW:

  1685             count = sqlite3_column_int(session->own_key_is_listed, 0);

  1686             *listed = count > 0;

  1687             status = PEP_STATUS_OK;

  1688             break;

  1690         default:

  1691             status = PEP_UNKNOWN_ERROR;

  1692     }

  1694     sqlite3_reset(session->own_key_is_listed);

  1695     return status;

  1696 }

  1698 PEP_STATUS _own_identities_retrieve(

  1699         PEP_SESSION session,

  1700         identity_list **own_identities,

  1701         identity_flags_t excluded_flags

  1702       )

  1703 {

  1704     PEP_STATUS status = PEP_STATUS_OK;

  1706     assert(session && own_identities);

  1707     if (!(session && own_identities))

  1708         return PEP_ILLEGAL_VALUE;

  1710     *own_identities = NULL;

  1711     identity_list *_own_identities = new_identity_list(NULL);

  1712     if (_own_identities == NULL)

  1713         goto enomem;

  1715     sqlite3_reset(session->own_identities_retrieve);

  1717     int result;

  1718     // address, fpr, username, user_id, comm_type, lang, flags

  1719     const char *address = NULL;

  1720     const char *fpr = NULL;

  1721     const char *username = NULL;

  1722     const char *user_id = NULL;

  1723     PEP_comm_type comm_type = PEP_ct_unknown;

  1724     const char *lang = NULL;

  1725     unsigned int flags = 0;

  1727     identity_list *_bl = _own_identities;

  1729     sqlite3_bind_int(session->own_identities_retrieve, 1, excluded_flags);

  1731     do {

  1732         result = sqlite3_step(session->own_identities_retrieve);

  1733         switch (result) {

  1734             case SQLITE_ROW:

  1735                 address = (const char *)

  1736                     sqlite3_column_text(session->own_identities_retrieve, 0);

  1737                 fpr = (const char *)

  1738                     sqlite3_column_text(session->own_identities_retrieve, 1);

  1739                 user_id = (const char *)

  1740                     sqlite3_column_text(session->own_identities_retrieve, 2);

  1741                 username = (const char *)

  1742                     sqlite3_column_text(session->own_identities_retrieve, 3);

  1743                 comm_type = PEP_ct_pEp;

  1744                 lang = (const char *)

  1745                     sqlite3_column_text(session->own_identities_retrieve, 4);

  1746                 flags = (unsigned int)

  1747                     sqlite3_column_int(session->own_identities_retrieve, 5);

  1749                 pEp_identity *ident = new_identity(address, fpr, user_id, username);

  1750                 if (!ident)

  1751                     goto enomem;

  1752                 ident->comm_type = comm_type;

  1753                 if (lang && lang[0]) {

  1754                     ident->lang[0] = lang[0];

  1755                     ident->lang[1] = lang[1];

  1756                     ident->lang[2] = 0;

  1757                 }

  1758                 ident->me = true;

  1759                 ident->flags = flags;

  1761                 _bl = identity_list_add(_bl, ident);

  1762                 if (_bl == NULL) {

  1763                     free_identity(ident);

  1764                     goto enomem;

  1765                 }

  1767                 break;

  1769             case SQLITE_DONE:

  1770                 break;

  1772             default:

  1773                 status = PEP_UNKNOWN_ERROR;

  1774                 result = SQLITE_DONE;

  1775         }

  1776     } while (result != SQLITE_DONE);

  1778     sqlite3_reset(session->own_identities_retrieve);

  1779     if (status == PEP_STATUS_OK)

  1780         *own_identities = _own_identities;

  1781     else

  1782         free_identity_list(_own_identities);

  1784     goto the_end;

  1786 enomem:

  1787     free_identity_list(_own_identities);

  1788     status = PEP_OUT_OF_MEMORY;

  1790 the_end:

  1791     return status;

  1792 }

  1794 DYNAMIC_API PEP_STATUS own_identities_retrieve(

  1795         PEP_SESSION session,

  1796         identity_list **own_identities

  1797       )

  1798 {

  1799     return _own_identities_retrieve(session, own_identities, 0);

  1800 }

  1802 PEP_STATUS _own_keys_retrieve(

  1803         PEP_SESSION session,

  1804         stringlist_t **keylist,

  1805         identity_flags_t excluded_flags,

  1806         bool private_only

  1807       )

  1808 {

  1809     PEP_STATUS status = PEP_STATUS_OK;

  1811     assert(session && keylist);

  1812     if (!(session && keylist))

  1813         return PEP_ILLEGAL_VALUE;

  1815     *keylist = NULL;

  1816     stringlist_t *_keylist = NULL;

  1818     sqlite3_reset(session->own_keys_retrieve);

  1820     int result;

  1822     stringlist_t *_bl = _keylist;

  1823     sqlite3_bind_int(session->own_keys_retrieve, 1, excluded_flags);

  1825     do {

  1826         result = sqlite3_step(session->own_keys_retrieve);

  1827         switch (result) {

  1828             case SQLITE_ROW:

  1829                 _bl = stringlist_add(_bl, (const char *)

  1830                         sqlite3_column_text(session->own_keys_retrieve, 0));

  1831                 if (_bl == NULL)

  1832                     goto enomem;

  1833                 if (_keylist == NULL)

  1834                     _keylist = _bl;

  1835                 break;

  1837             case SQLITE_DONE:

  1838                 break;

  1840             default:

  1841                 status = PEP_UNKNOWN_ERROR;

  1842                 result = SQLITE_DONE;

  1843         }

  1844     } while (result != SQLITE_DONE);

  1846     sqlite3_reset(session->own_keys_retrieve);

  1847     if (status == PEP_STATUS_OK) {

  1848         dedup_stringlist(_keylist);

  1849         if (private_only) {

  1850             stringlist_t* _kl = _keylist;

  1851             stringlist_t* _kl_prev = NULL;

  1852             while (_kl) {

  1853                 bool has_private = false;

  1854                 contains_priv_key(session, _kl->value, &has_private);

  1855                 if (!has_private) {

  1856                     stringlist_t* _kl_tmp = _kl;

  1857                     if (_kl_prev)

  1858                         _kl_prev->next = _kl->next;

  1859                     else

  1860                         _keylist = _kl->next;

  1862                     _kl = _kl->next;

  1864                     _kl_tmp->next = NULL;

  1865                     free_stringlist(_kl_tmp);

  1866                     continue;

  1867                 }

  1868                 _kl_prev = _kl;

  1869                 _kl = _kl->next;

  1870             }

  1871         }

  1872         *keylist = _keylist;

  1873     }

  1874     else

  1875         free_stringlist(_keylist);

  1877     goto the_end;

  1879 enomem:

  1880     free_stringlist(_keylist);

  1881     status = PEP_OUT_OF_MEMORY;

  1883 the_end:

  1884     return status;

  1885 }

  1887 DYNAMIC_API PEP_STATUS own_keys_retrieve(PEP_SESSION session, stringlist_t **keylist)

  1888 {

  1889     return _own_keys_retrieve(session, keylist, 0, true);

  1890 }

  1892 DYNAMIC_API PEP_STATUS set_own_key(

  1893        PEP_SESSION session,

  1894        pEp_identity *me,

  1895        const char *fpr

  1896     )

  1897 {

  1898     PEP_STATUS status = PEP_STATUS_OK;

  1900     assert(session && me);

  1901     assert(!EMPTYSTR(fpr));

  1902     assert(!EMPTYSTR(me->address));

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

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

  1906     if (!session || !me || EMPTYSTR(fpr) || EMPTYSTR(me->address) ||

  1907             EMPTYSTR(me->user_id) || EMPTYSTR(me->username))

  1908         return PEP_ILLEGAL_VALUE;

  1910     if (me->fpr == fpr)

  1911         me->fpr = NULL;

  1913     status = _myself(session, me, false, true, false);

  1914     // we do not need a valid key but dislike other errors

  1915     if (status != PEP_STATUS_OK && status != PEP_GET_KEY_FAILED && status != PEP_KEY_UNSUITABLE)

  1916         return status;

  1917     status = PEP_STATUS_OK;

  1919     bool private = false;

  1920     status = contains_priv_key(session, fpr, &private);

  1922     if (status != PEP_STATUS_OK)

  1923         return status;

  1925     if (!private)

  1926         return PEP_KEY_UNSUITABLE;

  1928     if (me->fpr)

  1929         free(me->fpr);

  1930     me->fpr = strdup(fpr);

  1931     assert(me->fpr);

  1932     if (!me->fpr)

  1933         return PEP_OUT_OF_MEMORY;

  1935     status = validate_fpr(session, me, false, true);

  1936     if (status)

  1937         return status;

  1939     me->comm_type = PEP_ct_pEp;

  1940     status = set_identity(session, me);

  1941     return status;

  1942 }

  1944 PEP_STATUS contains_priv_key(PEP_SESSION session, const char *fpr,

  1945                              bool *has_private) {

  1947     assert(session);

  1948     assert(fpr);

  1949     assert(has_private);

  1951     if (!(session && fpr && has_private))

  1952         return PEP_ILLEGAL_VALUE;

  1954     return session->cryptotech[PEP_crypt_OpenPGP].contains_priv_key(session, fpr, has_private);

  1955 }

  1957 PEP_STATUS add_mistrusted_key(PEP_SESSION session, const char* fpr)

  1958 {

  1959     int result;

  1961     assert(!EMPTYSTR(fpr));

  1963     if (!(session) || EMPTYSTR(fpr))

  1964         return PEP_ILLEGAL_VALUE;

  1966     sqlite3_reset(session->add_mistrusted_key);

  1967     sqlite3_bind_text(session->add_mistrusted_key, 1, fpr, -1,

  1968             SQLITE_STATIC);

  1970     result = sqlite3_step(session->add_mistrusted_key);

  1971     sqlite3_reset(session->add_mistrusted_key);

  1973     if (result != SQLITE_DONE)

  1974         return PEP_CANNOT_SET_PGP_KEYPAIR; // FIXME: Better status?

  1976     return PEP_STATUS_OK;

  1977 }

  1979 PEP_STATUS delete_mistrusted_key(PEP_SESSION session, const char* fpr)

  1980 {

  1981     int result;

  1983     assert(!EMPTYSTR(fpr));

  1985     if (!(session) || EMPTYSTR(fpr))

  1986         return PEP_ILLEGAL_VALUE;

  1988     sqlite3_reset(session->delete_mistrusted_key);

  1989     sqlite3_bind_text(session->delete_mistrusted_key, 1, fpr, -1,

  1990             SQLITE_STATIC);

  1992     result = sqlite3_step(session->delete_mistrusted_key);

  1993     sqlite3_reset(session->delete_mistrusted_key);

  1995     if (result != SQLITE_DONE)

  1996         return PEP_UNKNOWN_ERROR; // FIXME: Better status?

  1998     return PEP_STATUS_OK;

  1999 }

  2001 PEP_STATUS is_mistrusted_key(PEP_SESSION session, const char* fpr,

  2002                              bool* mistrusted)

  2003 {

  2004     PEP_STATUS status = PEP_STATUS_OK;

  2006     assert(session);

  2007     assert(!EMPTYSTR(fpr));

  2009     if (!(session && fpr))

  2010         return PEP_ILLEGAL_VALUE;

  2012     *mistrusted = false;

  2014     sqlite3_reset(session->is_mistrusted_key);

  2015     sqlite3_bind_text(session->is_mistrusted_key, 1, fpr, -1, SQLITE_STATIC);

  2017     int result;

  2019     result = sqlite3_step(session->is_mistrusted_key);

  2020     switch (result) {

  2021     case SQLITE_ROW:

  2022         *mistrusted = sqlite3_column_int(session->is_mistrusted_key, 0);

  2023         status = PEP_STATUS_OK;

  2024         break;

  2026     default:

  2027         status = PEP_UNKNOWN_ERROR;

  2028     }

  2030     sqlite3_reset(session->is_mistrusted_key);

  2031     return status;

  2032 }

  2034 static PEP_STATUS _wipe_default_key_if_invalid(PEP_SESSION session,

  2035                                          pEp_identity* ident) {

  2037     PEP_STATUS status = PEP_STATUS_OK;

  2039     if (!ident->user_id)

  2040         return PEP_ILLEGAL_VALUE;

  2042     if (!ident->fpr)

  2043         return status;

  2045     char* cached_fpr = strdup(ident->fpr);

  2046     if (!ident->fpr)

  2047         return PEP_OUT_OF_MEMORY;

  2049     PEP_STATUS keystatus = validate_fpr(session, ident, true, false);

  2050     switch (keystatus) {

  2051         case PEP_STATUS_OK:

  2052             // Check for non-renewable expiry and

  2053             // if so, fallthrough

  2054             if (ident->comm_type != PEP_ct_key_expired_but_confirmed &&

  2055                     ident->comm_type != PEP_ct_key_expired) {

  2056                 break;

  2057             }

  2058         case PEP_KEY_UNSUITABLE:

  2059         case PEP_KEY_BLACKLISTED:

  2060             // Remove key as default for all identities and users

  2061             status = remove_fpr_as_default(session, cached_fpr);

  2062             break;

  2063         default:

  2064             break;

  2065     }

  2066     free(cached_fpr);

  2068     if (status == PEP_STATUS_OK)

  2069         status = myself(session, ident);

  2071     return status;

  2072 }

  2074 PEP_STATUS clean_own_key_defaults(PEP_SESSION session) {

  2075     identity_list* idents = NULL;

  2076     PEP_STATUS status = own_identities_retrieve(session, &idents);

  2077     if (status != PEP_STATUS_OK)

  2078         return status;

  2080     if (!idents)

  2081         return PEP_STATUS_OK;

  2083     if (!idents->ident && !idents->next) {

  2084         free_identity_list(idents);

  2085         return PEP_STATUS_OK;

  2086     } // Kludge: FIX own_identities_retrieve. Should return NULL, not empty list

  2088     identity_list* curr = idents;

  2090     for ( ; curr ; curr = curr->next) {

  2091         pEp_identity* ident = curr->ident;

  2092         if (!ident)

  2093             continue;

  2095         _wipe_default_key_if_invalid(session, ident);

  2096     }

  2098     free_identity_list(idents);

  2100     // Also remove invalid default user key

  2101     char* own_id = NULL;

  2103     status = get_default_own_userid(session, &own_id);

  2105     if (status != PEP_STATUS_OK)

  2106         return status;

  2108     if (own_id) {

  2109         char* user_default_key = NULL;

  2110         status = get_user_default_key(session, own_id, &user_default_key);

  2111         if (status != PEP_STATUS_OK) {

  2112             free(own_id);

  2113             if (status == PEP_KEY_NOT_FOUND)

  2114                 status = PEP_STATUS_OK;

  2115             else

  2116                 return status;

  2117         }

  2118         else if (user_default_key) {

  2119             pEp_identity* empty_user = new_identity(NULL, user_default_key, NULL, own_id);

  2120             _wipe_default_key_if_invalid(session, empty_user);

  2121             free(user_default_key);

  2122         }

  2123         free(own_id);

  2124     }

  2125     return status;

  2126 }

author	Krista 'DarthMama' Bennett <krista@pep.foundation>
	Thu, 04 Jun 2020 11:18:45 +0200
changeset 4729	3df9a2a67597
parent 4672	9f99a202f9b9
child 4792	7056435ab9e7
child 4794	9efd9b998b57
permissions	-rw-r--r--