src/keymanagement.c
author Krista Bennett <krista@pep-project.org>
Fri, 19 Oct 2018 11:32:54 +0200
branchENGINE-473
changeset 3071 aae2e2a9ad63
parent 3011 a64991e4c87c
child 3092 389d6b6c204c
permissions -rw-r--r--
ENGINE-473: have the DB update partially fixed on renewal, but trust status is still not sticky. MOAR DEBUGGING!
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// This file is under GNU General Public License 3.0
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// see LICENSE.txt
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#include "platform.h"
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <ctype.h>
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#include "pEp_internal.h"
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#include "keymanagement.h"
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#include "sync_fsm.h"
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#include "blacklist.h"
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static bool key_matches_address(PEP_SESSION session, const char* address,
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                                const char* fpr) {
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    if (!session || !address || !fpr)
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        return false;
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    bool retval = false;
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    stringlist_t *keylist = NULL;
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    PEP_STATUS status = find_keys(session, address, &keylist);
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    if (status == PEP_STATUS_OK && keylist) {
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        stringlist_t* curr = keylist;
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        while (curr) {
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            if (curr->value) {
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                if (strcasecmp(curr->value, fpr)) {
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                    retval = true;
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                    break;
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                }
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            }
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            curr = curr->next;
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        }
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    }
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    free_stringlist(keylist);
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    return retval;                             
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}
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PEP_STATUS elect_pubkey(
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        PEP_SESSION session, pEp_identity * identity, bool check_blacklist
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    )
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{
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    PEP_STATUS status;
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    stringlist_t *keylist = NULL;
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    char *_fpr = "";
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    identity->comm_type = PEP_ct_unknown;
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    status = find_keys(session, identity->address, &keylist);
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    assert(status != PEP_OUT_OF_MEMORY);
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    if (status == PEP_OUT_OF_MEMORY)
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        return PEP_OUT_OF_MEMORY;
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    if (!keylist || !keylist->value)
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        identity->comm_type = PEP_ct_key_not_found;    
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    else {
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        stringlist_t *_keylist;
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        for (_keylist = keylist; _keylist && _keylist->value; _keylist = _keylist->next) {
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            PEP_comm_type _comm_type_key;
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            status = get_key_rating(session, _keylist->value, &_comm_type_key);
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            assert(status != PEP_OUT_OF_MEMORY);
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            if (status == PEP_OUT_OF_MEMORY) {
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                free_stringlist(keylist);
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                return PEP_OUT_OF_MEMORY;
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            }
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            if (_comm_type_key != PEP_ct_compromised &&
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                _comm_type_key != PEP_ct_unknown)
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            {
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                if (identity->comm_type == PEP_ct_unknown ||
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                    _comm_type_key > identity->comm_type)
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                {
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                    bool blacklisted = false;
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                    bool mistrusted = false;
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                    status = is_mistrusted_key(session, _keylist->value, &mistrusted);
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                    if (status == PEP_STATUS_OK && check_blacklist)
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                        status = blacklist_is_listed(session, _keylist->value, &blacklisted);
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                    if (status == PEP_STATUS_OK && !mistrusted && !blacklisted) {
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                        identity->comm_type = _comm_type_key;
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                        _fpr = _keylist->value;
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                    }
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                }
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            }
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        }
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    }
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    free(identity->fpr);
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    if (!_fpr || _fpr[0] == '\0')
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        identity->fpr = NULL;
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    else {    
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        identity->fpr = strdup(_fpr);
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        if (identity->fpr == NULL) {
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            free_stringlist(keylist);
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            return PEP_OUT_OF_MEMORY;
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        }
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    }
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    free_stringlist(keylist);
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    return PEP_STATUS_OK;
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}
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static PEP_STATUS validate_fpr(PEP_SESSION session, 
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                               pEp_identity* ident,
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                               bool check_blacklist) {
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    PEP_STATUS status = PEP_STATUS_OK;
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    if (!session || !ident || !ident->fpr || !ident->fpr[0])
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        return PEP_ILLEGAL_VALUE;    
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    char* fpr = ident->fpr;
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    bool has_private = false;
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    if (ident->me) {
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        status = contains_priv_key(session, fpr, &has_private);
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        if (status != PEP_STATUS_OK || !has_private)
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            return PEP_KEY_UNSUITABLE;
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    }
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    status = get_trust(session, ident);
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    if (status != PEP_STATUS_OK)
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        ident->comm_type = PEP_ct_unknown;
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    PEP_comm_type ct = ident->comm_type;
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    if (ct == PEP_ct_unknown) {
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        // If status is bad, it's ok, we get the rating
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        // we should use then (PEP_ct_unknown)
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        get_key_rating(session, fpr, &ct);
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        ident->comm_type = ct;
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    }
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    else if (ct == PEP_ct_key_expired || ct == PEP_ct_key_expired_but_confirmed) {
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        PEP_comm_type ct_expire_check = PEP_ct_unknown;
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        get_key_rating(session, fpr, &ct_expire_check);
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        if (ct_expire_check >= PEP_ct_strong_but_unconfirmed) {
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            ident->comm_type = ct_expire_check;
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            if (ct == PEP_ct_key_expired_but_confirmed)
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                ident->comm_type |= PEP_ct_confirmed;
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            ct = ident->comm_type;
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            // We need to fix this trust in the DB.
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            status = set_trust(session, ident);
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        }
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    }
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    bool pep_user = false;
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    is_pep_user(session, ident, &pep_user);
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    if (pep_user) {
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        switch (ct) {
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            case PEP_ct_OpenPGP:
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            case PEP_ct_OpenPGP_unconfirmed:
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                ct += 0x47; // difference between PEP and OpenPGP values;
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                ident->comm_type = ct;
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                break;
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            default:
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                break;
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        }
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    }
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    bool revoked, expired;
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    bool blacklisted = false;
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    status = key_revoked(session, fpr, &revoked);    
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    if (status != PEP_STATUS_OK) {
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        return status;
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    }
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    if (!revoked) {
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        time_t exp_time = (ident->me ? 
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                           time(NULL) + (7*24*3600) : time(NULL));
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        status = key_expired(session, fpr, 
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                             exp_time,
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                             &expired);
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        assert(status == PEP_STATUS_OK);
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        if (status != PEP_STATUS_OK)
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            return status;
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        if (check_blacklist && IS_PGP_CT(ct) &&
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            !ident->me) {
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            status = blacklist_is_listed(session, 
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                                         fpr, 
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                                         &blacklisted);
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            if (status != PEP_STATUS_OK)
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                return status;
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        }
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    }
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    if (ident->me && (ct >= PEP_ct_strong_but_unconfirmed) && !revoked && expired) {
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        // extend key
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        timestamp *ts = new_timestamp(time(NULL) + KEY_EXPIRE_DELTA);
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        status = renew_key(session, fpr, ts);
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        free_timestamp(ts);
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        if (status == PEP_STATUS_OK) {
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            // if key is valid (second check because pEp key might be extended above)
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            //      Return fpr        
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            status = key_expired(session, fpr, time(NULL), &expired);            
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            if (status != PEP_STATUS_OK)
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                return status;
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            if (expired) {
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                if (ident->comm_type & PEP_ct_confirmed || (ident->comm_type == PEP_ct_key_expired_but_confirmed))
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                    ident->comm_type = PEP_ct_key_expired_but_confirmed;
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                else
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                    ident->comm_type = PEP_ct_key_expired;
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                return status;
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            }
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            // communicate key(?)
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        }        
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    }
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    if (revoked) 
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        ct = PEP_ct_key_revoked;
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    else if (expired) {
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        if (ident->comm_type & PEP_ct_confirmed || (ident->comm_type == PEP_ct_key_expired_but_confirmed))
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            ct = PEP_ct_key_expired_but_confirmed;
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        else
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            ct = PEP_ct_key_expired;
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    }
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    else if (blacklisted) { // never true for .me
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        ident->comm_type = ct = PEP_ct_key_not_found;
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        free(ident->fpr);
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            ident->fpr = strdup("");
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        status = PEP_KEY_BLACKLISTED;
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    }
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    switch (ct) {
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        case PEP_ct_key_expired:
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        case PEP_ct_key_expired_but_confirmed:
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        case PEP_ct_key_revoked:
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        case PEP_ct_key_b0rken:
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            // delete key from being default key for all users/identities
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            status = remove_fpr_as_default(session, fpr);
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            status = update_trust_for_fpr(session, 
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                                          fpr, 
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                                          ct);
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        case PEP_ct_mistrusted:                                  
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            free(ident->fpr);
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            ident->fpr = NULL;
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            ident->comm_type = ct;            
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            status = PEP_KEY_UNSUITABLE;
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        default:
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            break;
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    }            
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    return status;
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}
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PEP_STATUS get_user_default_key(PEP_SESSION session, const char* user_id,
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                                char** default_key) {
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    assert(session);
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    assert(user_id);
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    if (!session || !user_id)
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        return PEP_ILLEGAL_VALUE;
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    PEP_STATUS status = PEP_STATUS_OK;
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    // try to get default key for user_data
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    sqlite3_reset(session->get_user_default_key);
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    sqlite3_bind_text(session->get_user_default_key, 1, user_id, 
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                      -1, SQLITE_STATIC);
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    const int result = sqlite3_step(session->get_user_default_key);
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    char* user_fpr = NULL;
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    if (result == SQLITE_ROW) {
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        const char* u_fpr =
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            (char *) sqlite3_column_text(session->get_user_default_key, 0);
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        if (u_fpr)
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            user_fpr = strdup(u_fpr);
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    }
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    else
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        status = PEP_GET_KEY_FAILED;
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    sqlite3_reset(session->get_user_default_key);
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    *default_key = user_fpr;
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    return status;     
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}
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   292
// Only call on retrieval of previously stored identity!
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// Also, we presume that if the stored_identity was sent in
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// without an fpr, there wasn't one in the trust DB for this
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// identity.
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PEP_STATUS get_valid_pubkey(PEP_SESSION session,
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                         pEp_identity* stored_identity,
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                         bool* is_identity_default,
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                         bool* is_user_default,
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                         bool* is_address_default,
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                         bool check_blacklist) {
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   302
    
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    PEP_STATUS status = PEP_STATUS_OK;
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   304
krista@2461
   305
    if (!stored_identity || EMPTYSTR(stored_identity->user_id)
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   306
        || !is_identity_default || !is_user_default || !is_address_default)
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   307
        return PEP_ILLEGAL_VALUE;
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   308
        
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   309
    *is_identity_default = *is_user_default = *is_address_default = false;
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   310
krista@2461
   311
    PEP_comm_type first_reject_comm_type = PEP_ct_key_not_found;
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   312
    PEP_STATUS first_reject_status = PEP_KEY_NOT_FOUND;
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   313
    
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   314
    char* stored_fpr = stored_identity->fpr;
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   315
    // Input: stored identity retrieved from database
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   316
    // if stored identity contains a default key
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   317
    if (!EMPTYSTR(stored_fpr)) {
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   318
        status = validate_fpr(session, stored_identity, check_blacklist);    
krista@2461
   319
        if (status == PEP_STATUS_OK && !EMPTYSTR(stored_identity->fpr)) {
krista@2461
   320
            *is_identity_default = *is_address_default = true;
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   321
            return status;
krista@2461
   322
        }
krista@2461
   323
        else if (status != PEP_KEY_NOT_FOUND) {
krista@2461
   324
            first_reject_status = status;
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   325
            first_reject_comm_type = stored_identity->comm_type;
krista@2461
   326
        }
krista@2461
   327
    }
krista@2461
   328
    // if no valid default stored identity key found
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   329
    free(stored_identity->fpr);
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   330
    stored_identity->fpr = NULL;
krista@2461
   331
    
krista@2461
   332
    char* user_fpr = NULL;
krista@2461
   333
    status = get_user_default_key(session, stored_identity->user_id, &user_fpr);
krista@2461
   334
    
krista@2461
   335
    if (!EMPTYSTR(user_fpr)) {             
krista@2461
   336
        // There exists a default key for user, so validate
krista@2461
   337
        stored_identity->fpr = user_fpr;
krista@2548
   338
        status = validate_fpr(session, stored_identity, check_blacklist);
krista@2461
   339
        if (status == PEP_STATUS_OK && stored_identity->fpr) {
krista@2461
   340
            *is_user_default = true;
krista@2461
   341
            *is_address_default = key_matches_address(session, 
krista@2461
   342
                                                      stored_identity->address,
krista@2461
   343
                                                      stored_identity->fpr);
krista@2461
   344
            return status;
krista@2461
   345
        }        
krista@2461
   346
        else if (status != PEP_KEY_NOT_FOUND && first_reject_status != PEP_KEY_NOT_FOUND) {
krista@2461
   347
            first_reject_status = status;
krista@2461
   348
            first_reject_comm_type = stored_identity->comm_type;
krista@2461
   349
        }
krista@2461
   350
    }
krista@2461
   351
    
krista@2548
   352
    status = elect_pubkey(session, stored_identity, check_blacklist);
krista@2461
   353
    if (status == PEP_STATUS_OK) {
krista@2461
   354
        if (!EMPTYSTR(stored_identity->fpr))
krista@2548
   355
            validate_fpr(session, stored_identity, false); // blacklist already filtered of needed
krista@2461
   356
    }    
krista@2461
   357
    else if (status != PEP_KEY_NOT_FOUND && first_reject_status != PEP_KEY_NOT_FOUND) {
krista@2461
   358
        first_reject_status = status;
krista@2461
   359
        first_reject_comm_type = stored_identity->comm_type;
krista@2461
   360
    }
krista@2461
   361
    
krista@2461
   362
    switch (stored_identity->comm_type) {
krista@2461
   363
        case PEP_ct_key_revoked:
krista@2461
   364
        case PEP_ct_key_b0rken:
krista@2461
   365
        case PEP_ct_key_expired:
krista@3071
   366
        case PEP_ct_key_expired_but_confirmed:
krista@2593
   367
        case PEP_ct_compromised:
krista@2461
   368
        case PEP_ct_mistrusted:
krista@2461
   369
            // this only happens when it's all there is
krista@2461
   370
            status = first_reject_status;
krista@2461
   371
            free(stored_identity->fpr);
krista@2461
   372
            stored_identity->fpr = NULL;
krista@2461
   373
            stored_identity->comm_type = first_reject_comm_type;
krista@2461
   374
            break;    
krista@2461
   375
        default:
krista@2548
   376
            if (check_blacklist && status == PEP_KEY_BLACKLISTED) {
krista@2548
   377
                free(stored_identity->fpr);
krista@2548
   378
                stored_identity->fpr = NULL;
krista@2548
   379
                stored_identity->comm_type = PEP_ct_key_not_found;
krista@2548
   380
            }
krista@2461
   381
            break;
krista@2461
   382
    }
krista@2461
   383
    return status;
krista@2461
   384
}
krista@2461
   385
krista@2461
   386
static void transfer_ident_lang_and_flags(pEp_identity* new_ident,
krista@2461
   387
                                          pEp_identity* stored_ident) {
krista@2461
   388
    if (new_ident->lang[0] == 0) {
krista@2461
   389
      new_ident->lang[0] = stored_ident->lang[0];
krista@2461
   390
      new_ident->lang[1] = stored_ident->lang[1];
krista@2461
   391
      new_ident->lang[2] = 0;
krista@2461
   392
    }
krista@2461
   393
krista@2461
   394
    new_ident->flags = stored_ident->flags;
krista@2461
   395
    new_ident->me = new_ident->me || stored_ident->me;
krista@2461
   396
}
krista@2461
   397
krista@2519
   398
static void adjust_pep_trust_status(PEP_SESSION session, pEp_identity* identity) {
krista@2519
   399
    assert(session);
krista@2519
   400
    assert(identity);
krista@2519
   401
    
krista@2519
   402
    if (identity->comm_type < PEP_ct_strong_but_unconfirmed ||
krista@2519
   403
        (identity->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)
krista@2519
   404
        return;
krista@2519
   405
    
krista@2519
   406
    bool pep_user;
krista@2519
   407
    
krista@2519
   408
    is_pep_user(session, identity, &pep_user);
krista@2519
   409
    
krista@2519
   410
    if (pep_user) {
krista@2519
   411
        PEP_comm_type confirmation_status = identity->comm_type & PEP_ct_confirmed;
krista@2519
   412
        identity->comm_type = PEP_ct_pEp_unconfirmed | confirmation_status;    
krista@2519
   413
    }
krista@2519
   414
}
krista@2519
   415
krista@2519
   416
krista@2461
   417
static PEP_STATUS prepare_updated_identity(PEP_SESSION session,
krista@2461
   418
                                                 pEp_identity* return_id,
krista@2461
   419
                                                 pEp_identity* stored_ident,
krista@2461
   420
                                                 bool store) {
krista@2461
   421
    
krista@2461
   422
    if (!session || !return_id || !stored_ident)
krista@2461
   423
        return PEP_ILLEGAL_VALUE;
krista@2461
   424
    
krista@2461
   425
    PEP_STATUS status;
krista@2461
   426
    
krista@2461
   427
    bool is_identity_default, is_user_default, is_address_default;
krista@2461
   428
    status = get_valid_pubkey(session, stored_ident,
krista@2461
   429
                                &is_identity_default,
krista@2461
   430
                                &is_user_default,
krista@2548
   431
                                &is_address_default,
krista@2548
   432
                              false);
krista@2461
   433
                                
krista@2461
   434
    if (status == PEP_STATUS_OK && stored_ident->fpr && *(stored_ident->fpr) != '\0') {
krista@2461
   435
    // set identity comm_type from trust db (user_id, FPR)
krista@2461
   436
        status = get_trust(session, stored_ident);
krista@2461
   437
        if (status == PEP_CANNOT_FIND_IDENTITY || stored_ident->comm_type == PEP_ct_unknown) {
krista@2461
   438
            // This is OK - there is no trust DB entry, but we
krista@2461
   439
            // found a key. We won't store this, but we'll
krista@2461
   440
            // use it.
krista@2461
   441
            PEP_comm_type ct = PEP_ct_unknown;
krista@2461
   442
            status = get_key_rating(session, stored_ident->fpr, &ct);
krista@2461
   443
            stored_ident->comm_type = ct;
krista@2461
   444
        }
krista@2461
   445
    }
krista@2471
   446
    else {
krista@2471
   447
        if (stored_ident->comm_type == PEP_ct_unknown)
krista@2471
   448
            stored_ident->comm_type = PEP_ct_key_not_found;
krista@2471
   449
    }
krista@2461
   450
    free(return_id->fpr);
krista@2461
   451
    return_id->fpr = NULL;
krista@2461
   452
    if (status == PEP_STATUS_OK && !EMPTYSTR(stored_ident->fpr))
krista@2461
   453
        return_id->fpr = strdup(stored_ident->fpr);
krista@2461
   454
        
krista@2461
   455
    return_id->comm_type = stored_ident->comm_type;
krista@2520
   456
                    
krista@2461
   457
    // We patch the DB with the input username, but if we didn't have
krista@2461
   458
    // one, we pull it out of storage if available.
krista@2461
   459
    // (also, if the input username is "anonymous" and there exists
krista@2461
   460
    //  a DB username, we replace)
krista@2461
   461
    if (!EMPTYSTR(stored_ident->username)) {
krista@2461
   462
        if (!EMPTYSTR(return_id->username) && 
krista@2493
   463
            (strcasecmp(return_id->username, return_id->address) == 0)) {
krista@2461
   464
            free(return_id->username);
krista@2500
   465
            return_id->username = NULL;
krista@2461
   466
        }
krista@2461
   467
        if (EMPTYSTR(return_id->username)) {
krista@2461
   468
            free(return_id->username);
krista@2461
   469
            return_id->username = strdup(stored_ident->username);
krista@2461
   470
        }
krista@2461
   471
    }
krista@2493
   472
    else {
krista@2493
   473
        if (EMPTYSTR(return_id->username))
krista@2493
   474
            return_id->username = strdup(return_id->address);
krista@2493
   475
    }
krista@2461
   476
    
krista@2461
   477
    return_id->me = stored_ident->me;
krista@2461
   478
    
krista@2461
   479
    // FIXME: Do we ALWAYS do this? We probably should...
krista@2461
   480
    if (EMPTYSTR(return_id->user_id)) {
krista@2461
   481
        free(return_id->user_id);
krista@2461
   482
        return_id->user_id = strdup(stored_ident->user_id);
krista@2520
   483
    } 
krista@2520
   484
    
krista@2520
   485
    adjust_pep_trust_status(session, return_id);
krista@2520
   486
   
krista@2461
   487
    // Call set_identity() to store
krista@2461
   488
    if ((is_identity_default || is_user_default) &&
krista@2461
   489
         is_address_default) {                 
krista@2461
   490
         // if we got an fpr which is default for either user
krista@2461
   491
         // or identity AND is valid for this address, set in DB
krista@2461
   492
         // as default
krista@2461
   493
         status = set_identity(session, return_id);
krista@2461
   494
    }
krista@2461
   495
    else {
krista@2461
   496
        // Store without default fpr/ct, but return the fpr and ct 
krista@2461
   497
        // for current use
krista@2461
   498
        char* save_fpr = return_id->fpr;
krista@2461
   499
        PEP_comm_type save_ct = return_id->comm_type;
krista@2461
   500
        return_id->fpr = NULL;
krista@2461
   501
        return_id->comm_type = PEP_ct_unknown;
krista@2461
   502
        PEP_STATUS save_status = status;
krista@2461
   503
        status = set_identity(session, return_id);
krista@2461
   504
        if (save_status != PEP_STATUS_OK)
krista@2461
   505
            status = save_status;
krista@2461
   506
        return_id->fpr = save_fpr;
krista@2461
   507
        return_id->comm_type = save_ct;
krista@2461
   508
    }
krista@2461
   509
    
krista@2461
   510
    transfer_ident_lang_and_flags(return_id, stored_ident);
krista@2461
   511
    
krista@2477
   512
    if (return_id->comm_type == PEP_ct_unknown)
krista@2477
   513
        return_id->comm_type = PEP_ct_key_not_found;
krista@2477
   514
    
krista@2461
   515
    return status;
krista@2461
   516
}
krista@2461
   517
edouard@1385
   518
DYNAMIC_API PEP_STATUS update_identity(
edouard@1385
   519
        PEP_SESSION session, pEp_identity * identity
vb@0
   520
    )
vb@0
   521
{
vb@0
   522
    PEP_STATUS status;
vb@0
   523
vb@0
   524
    assert(session);
vb@0
   525
    assert(identity);
Edouard@439
   526
    assert(!EMPTYSTR(identity->address));
vb@0
   527
Edouard@439
   528
    if (!(session && identity && !EMPTYSTR(identity->address)))
krista@2501
   529
        return PEP_ILLEGAL_VALUE;
vb@191
   530
krista@2461
   531
    char* default_own_id = NULL;
krista@2461
   532
    status = get_default_own_userid(session, &default_own_id);    
krista@2461
   533
krista@2461
   534
    // Is this me, temporary or not? If so, BAIL.
krista@2461
   535
    if (identity->me || 
krista@2461
   536
       (default_own_id && identity->user_id && (strcmp(default_own_id, identity->user_id) == 0))) 
krista@2461
   537
    {
vb@2574
   538
        free(default_own_id);
krista@2461
   539
        return PEP_ILLEGAL_VALUE;
vb@1078
   540
    }
vb@1078
   541
krista@2461
   542
    // We have, at least, an address.
krista@2461
   543
    // Retrieve stored identity information!    
krista@2461
   544
    pEp_identity* stored_ident = NULL;
Edouard@559
   545
krista@2461
   546
    if (!EMPTYSTR(identity->user_id)) {            
krista@2461
   547
        // (we're gonna update the trust/fpr anyway, so we use the no-fpr-from-trust-db variant)
krista@2461
   548
        //      * do get_identity() to retrieve stored identity information
krista@2461
   549
        status = get_identity_without_trust_check(session, identity->address, identity->user_id, &stored_ident);
krista@2461
   550
krista@2461
   551
        // Before we start - if there was no stored identity, we should check to make sure we don't
krista@2461
   552
        // have a stored identity with a temporary user_id that differs from the input user_id. This
krista@2461
   553
        // happens in multithreaded environments sometimes.
krista@2461
   554
        if (!stored_ident) {
krista@2461
   555
            identity_list* id_list = NULL;
krista@2461
   556
            status = get_identities_by_address(session, identity->address, &id_list);
krista@2461
   557
krista@2461
   558
            if (id_list) {
krista@2461
   559
                identity_list* id_curr = id_list;
krista@2985
   560
                bool input_is_TOFU = strstr(identity->user_id, "TOFU_") == identity->user_id;
krista@2461
   561
                while (id_curr) {
krista@2461
   562
                    pEp_identity* this_id = id_curr->ident;
krista@2461
   563
                    if (this_id) {
krista@2461
   564
                        char* this_uid = this_id->user_id;
krista@2985
   565
                        bool curr_is_TOFU = strstr(this_uid, "TOFU_") == this_uid;
krista@2985
   566
                        if (this_uid) {
krista@2985
   567
                            if (curr_is_TOFU && !input_is_TOFU) {
krista@2985
   568
                                // FIXME: should we also be fixing pEp_own_userId in this
krista@2985
   569
                                // function here?
krista@2461
   570
                                
krista@2985
   571
                                // if usernames match, we replace the userid. Or if the temp username
krista@2985
   572
                                // is anonymous.
krista@2985
   573
                                // FIXME: do we need to create an address match function which
krista@2985
   574
                                // matches the whole dot-and-case rigamarole from 
krista@2985
   575
                                if (EMPTYSTR(this_id->username) ||
krista@2985
   576
                                    strcasecmp(this_id->username, this_id->address) == 0 ||
krista@2985
   577
                                    (identity->username && 
krista@2985
   578
                                     strcasecmp(identity->username, 
krista@2985
   579
                                                this_id->username) == 0)) {
krista@2985
   580
                                    
krista@2985
   581
                                    // Ok, we have a temp ID. We have to replace this
krista@2985
   582
                                    // with the real ID.
krista@2985
   583
                                    status = replace_userid(session, 
krista@2985
   584
                                                            this_uid, 
krista@2985
   585
                                                            identity->user_id);
krista@2985
   586
                                    if (status != PEP_STATUS_OK) {
krista@2985
   587
                                        free_identity_list(id_list);
krista@2985
   588
                                        free(default_own_id);
krista@2985
   589
                                        return status;
krista@2985
   590
                                    }
krista@2985
   591
                                        
krista@2985
   592
                                    free(this_uid);
krista@2985
   593
                                    this_uid = NULL;
krista@2985
   594
                                    
krista@2985
   595
                                    // Reflect the change we just made to the DB
krista@2985
   596
                                    this_id->user_id = strdup(identity->user_id);
krista@2985
   597
                                    stored_ident = this_id;
krista@2985
   598
                                    // FIXME: free list.
krista@2985
   599
                                    break;                                
krista@2461
   600
                                }
krista@2985
   601
                            }
krista@2985
   602
                            else if (input_is_TOFU && !curr_is_TOFU) {
krista@2985
   603
                                // Replace ruthlessly - this is NOT supposed to happen.
krista@2985
   604
                                // BAD APP BEHAVIOUR.
krista@2995
   605
                                free(identity->user_id);
krista@2995
   606
                                identity->user_id = strdup(this_id->user_id);
krista@2461
   607
                                stored_ident = this_id;
krista@2461
   608
                                // FIXME: free list.
krista@2461
   609
                                break;                                
krista@2461
   610
                            }                            
krista@2461
   611
                        } 
krista@2461
   612
                    }
krista@2461
   613
                    id_curr = id_curr->next;
krista@2461
   614
                }
krista@2461
   615
            }
krista@2461
   616
        } 
krista@2461
   617
                
krista@2461
   618
        if (status == PEP_STATUS_OK && stored_ident) { 
krista@2461
   619
            //  * if identity available
krista@2461
   620
            //      * patch it with username
krista@2461
   621
            //          (note: this will happen when 
krista@2461
   622
            //           setting automatically below...)
krista@2461
   623
            //      * elect valid key for identity
krista@2461
   624
            //    * if valid key exists
krista@2461
   625
            //        * set return value's fpr
krista@2461
   626
            status = prepare_updated_identity(session,
krista@2461
   627
                                              identity,
krista@2461
   628
                                              stored_ident, true);
vb@1015
   629
        }
krista@2461
   630
        //  * else (identity unavailable)
krista@2461
   631
        else {
krista@2461
   632
            status = PEP_STATUS_OK;
krista@2493
   633
krista@2493
   634
            // FIXME: We may need to roll this back.
krista@2493
   635
            // FIXME: change docs if we don't
krista@2461
   636
            //  if we only have user_id and address and identity not available
krista@2461
   637
            //      * return error status (identity not found)
krista@2493
   638
            if (EMPTYSTR(identity->username)) {
krista@2493
   639
                free(identity->username);
krista@2493
   640
                identity->username = strdup(identity->address);
krista@2493
   641
            }
krista@2461
   642
            
krista@2461
   643
            // Otherwise, if we had user_id, address, and username:
krista@2461
   644
            //    * create identity with user_id, address, username
krista@2461
   645
            //      (this is the input id without the fpr + comm type!)
krista@2493
   646
krista@2493
   647
            if (status == PEP_STATUS_OK) {
krista@2548
   648
                elect_pubkey(session, identity, false);
krista@2493
   649
            }
krista@2493
   650
                        
krista@2461
   651
            //    * We've already checked and retrieved
krista@2461
   652
            //      any applicable temporary identities above. If we're 
krista@2461
   653
            //      here, none of them fit.
krista@2461
   654
            //    * call set_identity() to store
krista@2519
   655
            if (status == PEP_STATUS_OK) {
krista@2493
   656
                // FIXME: Do we set if we had to copy in the address?
krista@2519
   657
                adjust_pep_trust_status(session, identity);
krista@2461
   658
                status = set_identity(session, identity);
krista@2519
   659
            }
krista@2461
   660
            //  * Return: created identity
krista@2461
   661
        }        
krista@2461
   662
    }
krista@2461
   663
    else if (!EMPTYSTR(identity->username)) {
krista@2461
   664
        /*
krista@2461
   665
         * Temporary identity information with username supplied
krista@2461
   666
            * Input: address, username (no others)
krista@2461
   667
         */
krista@2461
   668
         
krista@2461
   669
        //  * See if there is an own identity that uses this address. If so, we'll
krista@2461
   670
        //    prefer that
krista@2461
   671
        stored_ident = NULL;
krista@2461
   672
        
krista@2461
   673
        if (default_own_id) {
krista@2461
   674
            status = get_identity(session, 
krista@2512
   675
                                  identity->address, 
krista@2461
   676
                                  default_own_id, 
krista@2461
   677
                                  &stored_ident);
krista@2461
   678
        }
krista@2461
   679
        // If there isn't an own identity, search for a non-temp stored ident
krista@2461
   680
        // with this address.                      
krista@2461
   681
        if (status == PEP_CANNOT_FIND_IDENTITY || !stored_ident) { 
krista@2461
   682
 
krista@2461
   683
            identity_list* id_list = NULL;
krista@2461
   684
            status = get_identities_by_address(session, identity->address, &id_list);
vb@1015
   685
krista@2461
   686
            if (id_list) {
krista@2461
   687
                identity_list* id_curr = id_list;
krista@2461
   688
                while (id_curr) {
krista@2461
   689
                    pEp_identity* this_id = id_curr->ident;
krista@2461
   690
                    if (this_id) {
krista@2461
   691
                        char* this_uid = this_id->user_id;
krista@2461
   692
                        if (this_uid && (strstr(this_uid, "TOFU_") != this_uid)) {
krista@2461
   693
                            // if usernames match, we replace the userid.
krista@2461
   694
                            if (identity->username && 
krista@2461
   695
                                strcasecmp(identity->username, 
krista@2461
   696
                                           this_id->username) == 0) {
krista@2461
   697
                                
krista@2461
   698
                                // Ok, we have a real ID. Copy it!
krista@2461
   699
                                identity->user_id = strdup(this_uid);
vb@2575
   700
                                assert(identity->user_id);
krista@2461
   701
                                if (!identity->user_id)
vb@2575
   702
                                    goto enomem;
vb@2575
   703
krista@2461
   704
                                stored_ident = this_id;
krista@2461
   705
                                
krista@2461
   706
                                break;                                
krista@2461
   707
                            }                            
krista@2461
   708
                        } 
edouard@1522
   709
                    }
krista@2461
   710
                    id_curr = id_curr->next;
edouard@1501
   711
                }
edouard@1501
   712
            }
krista@1220
   713
        }
krista@2461
   714
        
krista@2461
   715
        if (stored_ident) {
krista@2461
   716
            status = prepare_updated_identity(session,
krista@2461
   717
                                              identity,
krista@2461
   718
                                              stored_ident, true);
krista@2461
   719
        }
edouard@1501
   720
        else {
krista@2461
   721
            identity->user_id = calloc(1, strlen(identity->address) + 6);
krista@2461
   722
            if (!identity->user_id)
vb@2574
   723
                goto enomem;
edouard@1501
   724
krista@2461
   725
            snprintf(identity->user_id, strlen(identity->address) + 6,
krista@2461
   726
                     "TOFU_%s", identity->address);        
krista@2496
   727
krista@2537
   728
            status = get_identity(session, 
krista@2537
   729
                                  identity->address, 
krista@2537
   730
                                  identity->user_id, 
krista@2537
   731
                                  &stored_ident);
krista@2537
   732
krista@2537
   733
            if (status == PEP_STATUS_OK && stored_ident) {
krista@2537
   734
                status = prepare_updated_identity(session,
krista@2537
   735
                                                  identity,
krista@2537
   736
                                                  stored_ident, true);
krista@2537
   737
            }
krista@2537
   738
            else {
krista@2537
   739
                         
krista@2537
   740
                //    * We've already checked and retrieved
krista@2537
   741
                //      any applicable temporary identities above. If we're 
krista@2537
   742
                //      here, none of them fit.
krista@2537
   743
                
krista@2548
   744
                status = elect_pubkey(session, identity, false);
krista@2537
   745
                             
krista@2537
   746
                //    * call set_identity() to store
krista@2537
   747
                if (identity->fpr)
krista@2537
   748
                    status = get_key_rating(session, identity->fpr, &identity->comm_type);
krista@2496
   749
            
krista@2537
   750
                //    * call set_identity() to store
krista@2537
   751
                adjust_pep_trust_status(session, identity);            
krista@2537
   752
                status = set_identity(session, identity);
krista@2537
   753
            }
Edouard@499
   754
        }
vb@8
   755
    }
krista@2461
   756
    else {
krista@2461
   757
        /*
krista@2493
   758
        * Input: address (no others)
krista@2461
   759
         * Temporary identity information without username suplied
krista@2461
   760
         */
krista@2461
   761
         
krista@2461
   762
        //  * Again, see if there is an own identity that uses this address. If so, we'll
krista@2461
   763
        //    prefer that
krista@2461
   764
        stored_ident = NULL;
krista@2461
   765
         
krista@2461
   766
        if (default_own_id) {
krista@2461
   767
            status = get_identity(session, 
krista@2512
   768
                                  identity->address, 
krista@2461
   769
                                  default_own_id, 
krista@2461
   770
                                  &stored_ident);
krista@2461
   771
        }
krista@2461
   772
        // If there isn't an own identity, search for a non-temp stored ident
krista@2461
   773
        // with this address.                      
krista@2461
   774
        if (status == PEP_CANNOT_FIND_IDENTITY || !stored_ident) { 
krista@2461
   775
 
krista@2461
   776
            identity_list* id_list = NULL;
krista@2506
   777
            //    * Search for identity with this address
krista@2461
   778
            status = get_identities_by_address(session, identity->address, &id_list);
vb@8
   779
krista@2506
   780
            // Results are ordered by timestamp descending, so this covers
krista@2506
   781
            // both the one-result and multi-result cases
krista@2506
   782
            if (id_list) {
krista@2506
   783
                if (stored_ident) // unlikely
krista@2506
   784
                    free_identity(stored_ident);
krista@2461
   785
                stored_ident = id_list->ident;
krista@2461
   786
            }
krista@2461
   787
        }
krista@2461
   788
        if (stored_ident)
krista@2461
   789
            status = prepare_updated_identity(session, identity,
krista@2461
   790
                                              stored_ident, false);
krista@2496
   791
        else  {            
krista@2496
   792
            // too little info. BUT. We see if we can find a key; if so, we create a
krista@2496
   793
            // temp identity, look for a key, and store.
krista@2496
   794
                         
krista@2496
   795
            // create temporary identity, store it, and Return this
krista@2496
   796
            // This means TOFU_ user_id
krista@2496
   797
            identity->user_id = calloc(1, strlen(identity->address) + 6);
krista@2496
   798
            if (!identity->user_id)
vb@2574
   799
                goto enomem;
krista@2496
   800
krista@2496
   801
            snprintf(identity->user_id, strlen(identity->address) + 6,
krista@2496
   802
                     "TOFU_%s", identity->address);        
krista@2496
   803
        
krista@2496
   804
            identity->username = strdup(identity->address);
krista@2496
   805
            if (!identity->address)
vb@2574
   806
                goto enomem;
krista@2496
   807
            
krista@2496
   808
            free(identity->fpr);
krista@2496
   809
            identity->fpr = NULL;
krista@2496
   810
            identity->comm_type = PEP_ct_unknown;
krista@2496
   811
krista@2548
   812
            status = elect_pubkey(session, identity, false);
krista@2496
   813
                         
krista@2496
   814
            if (identity->fpr)
krista@2496
   815
                status = get_key_rating(session, identity->fpr, &identity->comm_type);
krista@2496
   816
        
krista@2519
   817
            //    * call set_identity() to store
krista@2519
   818
            adjust_pep_trust_status(session, identity);            
krista@2496
   819
            status = set_identity(session, identity);
krista@2496
   820
krista@2496
   821
        }
krista@2461
   822
    }
krista@2461
   823
    
krista@2461
   824
    // FIXME: This is legacy. I presume it's a notification for the caller...
krista@2461
   825
    // Revisit once I can talk to Volker
krista@2593
   826
    if (identity->comm_type != PEP_ct_compromised &&
krista@2461
   827
        identity->comm_type < PEP_ct_strong_but_unconfirmed)
vb@297
   828
        if (session->examine_identity)
krista@2461
   829
            session->examine_identity(identity, session->examine_management);
vb@297
   830
vb@2574
   831
    goto pep_free;
vb@2574
   832
vb@2574
   833
enomem:
vb@2574
   834
    status = PEP_OUT_OF_MEMORY;
vb@2574
   835
vb@2574
   836
pep_free:
vb@2574
   837
    free(default_own_id);
vb@2575
   838
    free_identity(stored_ident);
krista@2501
   839
    return status;
vb@0
   840
}
vb@0
   841
Edouard@774
   842
PEP_STATUS elect_ownkey(
krista@1194
   843
        PEP_SESSION session, pEp_identity * identity
Edouard@774
   844
    )
Edouard@774
   845
{
Edouard@774
   846
    PEP_STATUS status;
Edouard@774
   847
    stringlist_t *keylist = NULL;
Edouard@774
   848
Edouard@774
   849
    free(identity->fpr);
Edouard@774
   850
    identity->fpr = NULL;
Edouard@774
   851
krista@1357
   852
    status = find_private_keys(session, identity->address, &keylist);
Edouard@774
   853
    assert(status != PEP_OUT_OF_MEMORY);
Edouard@774
   854
    if (status == PEP_OUT_OF_MEMORY)
Edouard@774
   855
        return PEP_OUT_OF_MEMORY;
Edouard@774
   856
    
Edouard@774
   857
    if (keylist != NULL && keylist->value != NULL)
Edouard@774
   858
    {
Edouard@774
   859
        char *_fpr = NULL;
Edouard@774
   860
        identity->comm_type = PEP_ct_unknown;
Edouard@774
   861
Edouard@774
   862
        stringlist_t *_keylist;
Edouard@774
   863
        for (_keylist = keylist; _keylist && _keylist->value; _keylist = _keylist->next) {
Edouard@774
   864
            bool is_own = false;
Edouard@774
   865
            
edouard@1752
   866
            status = own_key_is_listed(session, _keylist->value, &is_own);
edouard@1752
   867
            assert(status == PEP_STATUS_OK);
edouard@1752
   868
            if (status != PEP_STATUS_OK) {
edouard@1752
   869
                free_stringlist(keylist);
edouard@1752
   870
                return status;
Edouard@774
   871
            }
Edouard@774
   872
            
edouard@1752
   873
            if (is_own)
Edouard@774
   874
            {
Edouard@774
   875
                PEP_comm_type _comm_type_key;
Edouard@774
   876
                
Edouard@774
   877
                status = get_key_rating(session, _keylist->value, &_comm_type_key);
Edouard@774
   878
                assert(status != PEP_OUT_OF_MEMORY);
Edouard@774
   879
                if (status == PEP_OUT_OF_MEMORY) {
Edouard@774
   880
                    free_stringlist(keylist);
Edouard@774
   881
                    return PEP_OUT_OF_MEMORY;
Edouard@774
   882
                }
Edouard@774
   883
                
krista@2593
   884
                if (_comm_type_key != PEP_ct_compromised &&
Edouard@774
   885
                    _comm_type_key != PEP_ct_unknown)
Edouard@774
   886
                {
Edouard@774
   887
                    if (identity->comm_type == PEP_ct_unknown ||
Edouard@774
   888
                        _comm_type_key > identity->comm_type)
Edouard@774
   889
                    {
Edouard@774
   890
                        identity->comm_type = _comm_type_key;
Edouard@774
   891
                        _fpr = _keylist->value;
Edouard@774
   892
                    }
Edouard@774
   893
                }
Edouard@774
   894
            }
Edouard@774
   895
        }
Edouard@774
   896
        
Edouard@774
   897
        if (_fpr)
Edouard@774
   898
        {
Edouard@774
   899
            identity->fpr = strdup(_fpr);
Edouard@774
   900
            assert(identity->fpr);
Edouard@774
   901
            if (identity->fpr == NULL)
Edouard@774
   902
            {
Edouard@774
   903
                free_stringlist(keylist);
Edouard@774
   904
                return PEP_OUT_OF_MEMORY;
Edouard@774
   905
            }
Edouard@774
   906
        }
Edouard@774
   907
        free_stringlist(keylist);
Edouard@774
   908
    }
Edouard@774
   909
    return PEP_STATUS_OK;
Edouard@774
   910
}
Edouard@774
   911
krista@1357
   912
PEP_STATUS _has_usable_priv_key(PEP_SESSION session, char* fpr,
krista@1357
   913
                                bool* is_usable) {
krista@1357
   914
    
krista@2549
   915
    bool has_private = false;
krista@2549
   916
    PEP_STATUS status = contains_priv_key(session, fpr, &has_private);
krista@1357
   917
    
krista@2549
   918
    *is_usable = has_private;
krista@1357
   919
    
krista@2501
   920
    return status;
krista@1357
   921
}
krista@1357
   922
edouard@1406
   923
PEP_STATUS _myself(PEP_SESSION session, pEp_identity * identity, bool do_keygen, bool ignore_flags)
vb@0
   924
{
krista@2461
   925
vb@0
   926
    PEP_STATUS status;
vb@0
   927
vb@0
   928
    assert(session);
vb@0
   929
    assert(identity);
vb@1044
   930
    assert(!EMPTYSTR(identity->address));
krista@2461
   931
    assert(!EMPTYSTR(identity->user_id));
vb@1043
   932
krista@2461
   933
    if (!session || !identity || EMPTYSTR(identity->address) ||
krista@2461
   934
        EMPTYSTR(identity->user_id))
krista@2501
   935
        return PEP_ILLEGAL_VALUE;
vb@191
   936
krista@2461
   937
    pEp_identity *stored_identity = NULL;
krista@2461
   938
    char* revoked_fpr = NULL; 
vb@2535
   939
    bool valid_key_found = false;
krista@2461
   940
        
krista@2461
   941
    char* default_own_id = NULL;
krista@2461
   942
    status = get_default_own_userid(session, &default_own_id);
krista@2461
   943
krista@2461
   944
    // Deal with non-default user_ids.
krista@2461
   945
    if (default_own_id && strcmp(default_own_id, identity->user_id) != 0) {
krista@2461
   946
        
krista@2461
   947
        status = set_userid_alias(session, default_own_id, identity->user_id);
krista@2461
   948
        // Do we want this to be fatal? For now, we'll do it...
krista@2461
   949
        if (status != PEP_STATUS_OK)
krista@2461
   950
            goto pep_free;
krista@2461
   951
            
krista@2461
   952
        free(identity->user_id);
krista@2461
   953
        identity->user_id = strdup(default_own_id);
krista@2461
   954
        if (identity->user_id == NULL) {
krista@2461
   955
            status = PEP_OUT_OF_MEMORY;
krista@2461
   956
            goto pep_free;
krista@2461
   957
        }
krista@2461
   958
    }
krista@2461
   959
krista@2461
   960
    // NOTE: IF WE DON'T YET HAVE AN OWN_ID, WE IGNORE REFERENCES TO THIS ADDRESS IN THE
krista@2461
   961
    // DB (WHICH MAY HAVE BEEN SET BEFORE MYSELF WAS CALLED BY RECEIVING AN EMAIL FROM
krista@2461
   962
    // THIS ADDRESS), AS IT IS NOT AN OWN_IDENTITY AND HAS NO INFORMATION WE NEED OR WHAT TO
krista@2461
   963
    // SET FOR MYSELF
krista@2461
   964
    
krista@2461
   965
    // Ok, so now, set up the own_identity:
vb@0
   966
    identity->comm_type = PEP_ct_pEp;
krista@2461
   967
    identity->me = true;
edouard@1406
   968
    if(ignore_flags)
edouard@1406
   969
        identity->flags = 0;
Edouard@658
   970
    
krista@2461
   971
    // Let's see if we have an identity record in the DB for 
krista@2461
   972
    // this user_id + address
krista@2501
   973
//    DEBUG_LOG("myself", "debug", identity->address);
vb@1044
   974
 
Edouard@560
   975
    status = get_identity(session,
Edouard@560
   976
                          identity->address,
Edouard@560
   977
                          identity->user_id,
Edouard@560
   978
                          &stored_identity);
krista@2461
   979
vb@0
   980
    assert(status != PEP_OUT_OF_MEMORY);
vb@2535
   981
    if (status == PEP_OUT_OF_MEMORY) {
vb@2535
   982
        status = PEP_OUT_OF_MEMORY;
vb@2535
   983
        goto pep_free;
vb@2535
   984
    }
krista@1357
   985
krista@2493
   986
    // Set usernames - priority is input username > stored name > address
krista@2461
   987
    // If there's an input username, we always patch the username with that
krista@2461
   988
    // input.
krista@2461
   989
    if (EMPTYSTR(identity->username)) {
krista@2494
   990
        bool stored_uname = (stored_identity && !EMPTYSTR(stored_identity->username));
krista@2493
   991
        char* uname = (stored_uname ? stored_identity->username : identity->address);
krista@2461
   992
        free(identity->username);
krista@2461
   993
        identity->username = strdup(uname);
vb@2535
   994
        if (identity->username == NULL) {
vb@2535
   995
            status = PEP_OUT_OF_MEMORY;
vb@2535
   996
            goto pep_free;
vb@2535
   997
        }
krista@2461
   998
    }
krista@2461
   999
vb@2535
  1000
    // ignore input fpr
vb@2535
  1001
vb@2535
  1002
    if (identity->fpr) {
vb@2535
  1003
        free(identity->fpr);
vb@2535
  1004
        identity->fpr = NULL;
vb@2535
  1005
    }
vb@2535
  1006
vb@2535
  1007
    // check stored identity
vb@2535
  1008
    if (stored_identity && !EMPTYSTR(stored_identity->fpr)) {
krista@2461
  1009
        // Fall back / retrieve
krista@2548
  1010
        status = validate_fpr(session, stored_identity, false);
vb@2535
  1011
        if (status == PEP_OUT_OF_MEMORY)
vb@2535
  1012
            goto pep_free;
vb@2535
  1013
        if (status == PEP_STATUS_OK) {
vb@2535
  1014
            if (stored_identity->comm_type >= PEP_ct_strong_but_unconfirmed) {
vb@2535
  1015
                identity->fpr = strdup(stored_identity->fpr);
vb@2535
  1016
                assert(identity->fpr);
vb@2535
  1017
                if (!identity->fpr) {
vb@2535
  1018
                    status = PEP_OUT_OF_MEMORY;
vb@2535
  1019
                    goto pep_free;
vb@2535
  1020
                }
vb@2535
  1021
                valid_key_found = true;            
vb@2535
  1022
            }
vb@2535
  1023
            else {
vb@2535
  1024
                bool revoked = false;
krista@2461
  1025
                status = key_revoked(session, stored_identity->fpr, &revoked);
vb@2535
  1026
                if (status)
vb@2535
  1027
                    goto pep_free;
vb@2535
  1028
                if (revoked) {
krista@2461
  1029
                    revoked_fpr = strdup(stored_identity->fpr);
vb@2535
  1030
                    assert(revoked_fpr);
vb@2535
  1031
                    if (!revoked_fpr) {
vb@2535
  1032
                        status = PEP_OUT_OF_MEMORY;
vb@2535
  1033
                        goto pep_free;
vb@2535
  1034
                    }
vb@2535
  1035
                }
vb@2535
  1036
            }
krista@1357
  1037
        }
Edouard@560
  1038
    }
krista@1357
  1039
    
krista@2461
  1040
    // Nothing left to do but generate a key
krista@2461
  1041
    if (!valid_key_found) {
krista@2461
  1042
        if (!do_keygen)
krista@2461
  1043
            status = PEP_GET_KEY_FAILED;
krista@2461
  1044
        else {
krista@2501
  1045
// /            DEBUG_LOG("Generating key pair", "debug", identity->address);
vb@934
  1046
krista@2461
  1047
            free(identity->fpr);
krista@2461
  1048
            identity->fpr = NULL;
krista@2461
  1049
            status = generate_keypair(session, identity);
krista@2461
  1050
            assert(status != PEP_OUT_OF_MEMORY);
krista@1371
  1051
krista@2461
  1052
            if (status != PEP_STATUS_OK) {
krista@2461
  1053
                char buf[11];
krista@2461
  1054
                snprintf(buf, 11, "%d", status); // uh, this is kludgey. FIXME
krista@2501
  1055
//                DEBUG_LOG("Generating key pair failed", "debug", buf);
krista@2461
  1056
            }        
krista@2461
  1057
            else {
krista@2461
  1058
                valid_key_found = true;
krista@2461
  1059
                if (revoked_fpr) {
krista@2461
  1060
                    status = set_revoked(session, revoked_fpr,
krista@2461
  1061
                                         stored_identity->fpr, time(NULL));
krista@2461
  1062
                }
krista@2461
  1063
            }
krista@1357
  1064
        }
Edouard@560
  1065
    }
Edouard@695
  1066
krista@2461
  1067
    if (valid_key_found) {
krista@2461
  1068
        identity->comm_type = PEP_ct_pEp;
krista@2461
  1069
        status = PEP_STATUS_OK;
krista@2461
  1070
    }
krista@2461
  1071
    else {
krista@2461
  1072
        free(identity->fpr);
krista@2461
  1073
        identity->fpr = NULL;
krista@2461
  1074
        identity->comm_type = PEP_ct_unknown;
krista@2461
  1075
    }
krista@2461
  1076
    
krista@2461
  1077
    status = set_identity(session, identity);
krista@2504
  1078
    if (status == PEP_STATUS_OK)
krista@2504
  1079
        status = set_as_pep_user(session, identity);
Edouard@775
  1080
krista@2461
  1081
pep_free:    
krista@2461
  1082
    free(default_own_id);
krista@2461
  1083
    free(revoked_fpr);                     
krista@2461
  1084
    free_identity(stored_identity);
krista@2501
  1085
    return status;
krista@2461
  1086
}
krista@2461
  1087
vb@2535
  1088
// DYNAMIC_API PEP_STATUS initialise_own_identities(PEP_SESSION session,
vb@2535
  1089
//                                                  identity_list* my_idents) {
vb@2535
  1090
//     PEP_STATUS status = PEP_STATUS_OK;
vb@2535
  1091
//     if (!session)
vb@2535
  1092
//         return PEP_ILLEGAL_VALUE;
vb@2535
  1093
//         
vb@2535
  1094
//     if (!my_idents)
vb@2535
  1095
//         return PEP_STATUS_OK;
vb@2535
  1096
//             
vb@2535
  1097
//     identity_list* ident_curr = my_idents;
vb@2535
  1098
//     while (ident_curr) {
vb@2535
  1099
//         pEp_identity* ident = ident_curr->ident;
vb@2535
  1100
//         if (!ident || !ident->address) {
vb@2535
  1101
//             status = PEP_ILLEGAL_VALUE;
vb@2535
  1102
//             goto pep_error;
vb@2535
  1103
//         }
vb@2535
  1104
// 
vb@2535
  1105
//         status = _myself(session, ident, false, false);
vb@2535
  1106
//         
vb@2535
  1107
//         ident_curr = ident_curr->next;
vb@2535
  1108
//     }
vb@2535
  1109
//     
vb@2535
  1110
// pep_error:
vb@2535
  1111
//     return status;
vb@2535
  1112
// }
vb@0
  1113
edouard@1385
  1114
DYNAMIC_API PEP_STATUS myself(PEP_SESSION session, pEp_identity * identity)
edouard@1385
  1115
{
krista@2501
  1116
    return _myself(session, identity, true, false);
edouard@1385
  1117
}
edouard@1385
  1118
vb@296
  1119
DYNAMIC_API PEP_STATUS register_examine_function(
vb@292
  1120
        PEP_SESSION session, 
vb@292
  1121
        examine_identity_t examine_identity,
vb@292
  1122
        void *management
vb@292
  1123
    )
vb@292
  1124
{
vb@292
  1125
    assert(session);
vb@292
  1126
    if (!session)
vb@292
  1127
        return PEP_ILLEGAL_VALUE;
vb@292
  1128
vb@292
  1129
    session->examine_management = management;
vb@292
  1130
    session->examine_identity = examine_identity;
vb@292
  1131
vb@292
  1132
    return PEP_STATUS_OK;
vb@292
  1133
}
vb@292
  1134
vb@0
  1135
DYNAMIC_API PEP_STATUS do_keymanagement(
vb@0
  1136
        retrieve_next_identity_t retrieve_next_identity,
vb@0
  1137
        void *management
vb@0
  1138
    )
vb@0
  1139
{
vb@0
  1140
    PEP_SESSION session;
vb@0
  1141
    pEp_identity *identity;
Edouard@499
  1142
    PEP_STATUS status;
vb@0
  1143
Edouard@499
  1144
    assert(retrieve_next_identity);
Edouard@499
  1145
    assert(management);
Edouard@499
  1146
Edouard@499
  1147
    if (!retrieve_next_identity || !management)
Edouard@499
  1148
        return PEP_ILLEGAL_VALUE;
Edouard@499
  1149
Edouard@499
  1150
    status = init(&session);
vb@0
  1151
    assert(status == PEP_STATUS_OK);
vb@0
  1152
    if (status != PEP_STATUS_OK)
vb@0
  1153
        return status;
vb@0
  1154
vb@0
  1155
    log_event(session, "keymanagement thread started", "pEp engine", NULL, NULL);
vb@0
  1156
Edouard@499
  1157
    while ((identity = retrieve_next_identity(management))) 
Edouard@499
  1158
    {
vb@0
  1159
        assert(identity->address);
Edouard@499
  1160
        if(identity->address)
Edouard@499
  1161
        {
Edouard@499
  1162
            DEBUG_LOG("do_keymanagement", "retrieve_next_identity", identity->address);
Edouard@499
  1163
krista@2461
  1164
            if (identity->me) {
Edouard@499
  1165
                status = myself(session, identity);
Edouard@499
  1166
            } else {
Edouard@499
  1167
                status = recv_key(session, identity->address);
Edouard@499
  1168
            }
Edouard@499
  1169
vb@0
  1170
            assert(status != PEP_OUT_OF_MEMORY);
Edouard@499
  1171
            if(status == PEP_OUT_OF_MEMORY)
Edouard@499
  1172
                return PEP_OUT_OF_MEMORY;
vb@0
  1173
        }
vb@0
  1174
        free_identity(identity);
vb@0
  1175
    }
vb@0
  1176
vb@0
  1177
    log_event(session, "keymanagement thread shutdown", "pEp engine", NULL, NULL);
vb@0
  1178
vb@0
  1179
    release(session);
vb@0
  1180
    return PEP_STATUS_OK;
vb@0
  1181
}
vb@0
  1182
krista@1213
  1183
DYNAMIC_API PEP_STATUS key_mistrusted(
vb@357
  1184
        PEP_SESSION session,
vb@357
  1185
        pEp_identity *ident
vb@357
  1186
    )
vb@215
  1187
{
vb@218
  1188
    PEP_STATUS status = PEP_STATUS_OK;
vb@218
  1189
vb@215
  1190
    assert(session);
vb@357
  1191
    assert(ident);
Edouard@439
  1192
    assert(!EMPTYSTR(ident->fpr));
vb@215
  1193
vb@357
  1194
    if (!(session && ident && ident->fpr))
vb@215
  1195
        return PEP_ILLEGAL_VALUE;
vb@215
  1196
krista@2461
  1197
    if (ident->me)
Edouard@697
  1198
    {
krista@3011
  1199
        // See if key is revoked already
krista@3011
  1200
        bool revoked = false;
krista@3011
  1201
        status = key_revoked(session, ident->fpr, &revoked);
krista@3011
  1202
        if (!revoked)
krista@3011
  1203
            revoke_key(session, ident->fpr, NULL);
krista@3011
  1204
            
Edouard@697
  1205
        myself(session, ident);
Edouard@697
  1206
    }
Edouard@697
  1207
    else
Edouard@697
  1208
    {
krista@2129
  1209
        // for undo
krista@2129
  1210
        if (session->cached_mistrusted)
krista@2129
  1211
            free(session->cached_mistrusted);
krista@2129
  1212
        session->cached_mistrusted = identity_dup(ident);
krista@2461
  1213
        
krista@2461
  1214
        // set mistrust for this user_id/keypair (even if there's not an
krista@2461
  1215
        // identity set yet, this is important, as we need to record the mistrust
krista@2461
  1216
        // action)
krista@2478
  1217
        
krista@2483
  1218
        // double-check to be sure key is even in the DB
krista@2483
  1219
        if (ident->fpr)
krista@2483
  1220
            status = set_pgp_keypair(session, ident->fpr);
krista@2483
  1221
krista@2478
  1222
        // We set this temporarily but will grab it back from the cache afterwards
krista@2478
  1223
        ident->comm_type = PEP_ct_mistrusted;
krista@2478
  1224
        status = set_trust(session, ident);
krista@2478
  1225
        ident->comm_type = session->cached_mistrusted->comm_type;
krista@2478
  1226
        
krista@2461
  1227
        if (status == PEP_STATUS_OK)
krista@2461
  1228
            // cascade that mistrust for anyone using this key
krista@2593
  1229
            status = mark_as_compromised(session, ident->fpr);
krista@2461
  1230
        if (status == PEP_STATUS_OK)
krista@2461
  1231
            status = remove_fpr_as_default(session, ident->fpr);
krista@2471
  1232
        if (status == PEP_STATUS_OK)
krista@2471
  1233
            status = add_mistrusted_key(session, ident->fpr);
Edouard@697
  1234
    }
vb@218
  1235
vb@218
  1236
    return status;
vb@215
  1237
}
vb@215
  1238
krista@2129
  1239
DYNAMIC_API PEP_STATUS undo_last_mistrust(PEP_SESSION session) {
krista@2129
  1240
    assert(session);
krista@2129
  1241
    
krista@2129
  1242
    if (!session)
krista@2129
  1243
        return PEP_ILLEGAL_VALUE;
krista@2129
  1244
    
krista@2129
  1245
    PEP_STATUS status = PEP_STATUS_OK;
krista@2129
  1246
        
krista@2129
  1247
    pEp_identity* cached_ident = session->cached_mistrusted;
krista@2129
  1248
    
krista@2129
  1249
    if (!cached_ident)
krista@2129
  1250
        status = PEP_CANNOT_FIND_IDENTITY;
krista@2129
  1251
    else {
krista@2471
  1252
        status = delete_mistrusted_key(session, cached_ident->fpr);
krista@2471
  1253
        if (status == PEP_STATUS_OK) {
krista@2504
  1254
            status = set_identity(session, cached_ident);
krista@2504
  1255
            // THIS SHOULDN'T BE NECESSARY - PREVIOUS VALUE WAS IN THE DB
krista@2504
  1256
            // if (status == PEP_STATUS_OK) {
krista@2504
  1257
            //     if ((cached_ident->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)
krista@2504
  1258
            //         status = set_as_pep_user(session, cached_ident);
krista@2504
  1259
            // }            
krista@2471
  1260
            free_identity(session->cached_mistrusted);
krista@2471
  1261
        }
krista@2129
  1262
    }
krista@2129
  1263
    
krista@2129
  1264
    session->cached_mistrusted = NULL;
krista@2471
  1265
    
krista@2129
  1266
    return status;
krista@2129
  1267
}
krista@2129
  1268
Edouard@410
  1269
DYNAMIC_API PEP_STATUS key_reset_trust(
Edouard@410
  1270
        PEP_SESSION session,
Edouard@410
  1271
        pEp_identity *ident
Edouard@410
  1272
    )
Edouard@410
  1273
{
Edouard@410
  1274
    PEP_STATUS status = PEP_STATUS_OK;
Edouard@410
  1275
Edouard@410
  1276
    assert(session);
Edouard@410
  1277
    assert(ident);
Edouard@439
  1278
    assert(!EMPTYSTR(ident->fpr));
Edouard@439
  1279
    assert(!EMPTYSTR(ident->address));
Edouard@439
  1280
    assert(!EMPTYSTR(ident->user_id));
Edouard@410
  1281
krista@2461
  1282
    if (!(session && ident && ident->fpr && ident->fpr[0] != '\0' && ident->address &&
vb@420
  1283
            ident->user_id))
Edouard@410
  1284
        return PEP_ILLEGAL_VALUE;
Edouard@410
  1285
krista@2461
  1286
    // we do not change the input struct at ALL.
krista@2461
  1287
    pEp_identity* input_copy = identity_dup(ident);
krista@2461
  1288
    
krista@2461
  1289
    pEp_identity* tmp_ident = NULL;
krista@2461
  1290
    
krista@2461
  1291
    status = get_trust(session, input_copy);
krista@2461
  1292
    
vb@420
  1293
    if (status != PEP_STATUS_OK)
krista@2461
  1294
        goto pep_free;
krista@2461
  1295
        
krista@2461
  1296
    PEP_comm_type new_trust = PEP_ct_unknown;
krista@2586
  1297
    status = get_key_rating(session, ident->fpr, &new_trust);
krista@2586
  1298
    if (status != PEP_STATUS_OK)
krista@2586
  1299
        goto pep_free;
Edouard@410
  1300
krista@2586
  1301
    bool pep_user = false;
krista@2586
  1302
    
krista@2586
  1303
    status = is_pep_user(session, ident, &pep_user);
krista@2586
  1304
    
krista@2586
  1305
    if (pep_user && new_trust >= PEP_ct_unconfirmed_encryption)
krista@2586
  1306
        input_copy->comm_type = PEP_ct_pEp_unconfirmed;
krista@2586
  1307
    else
krista@2586
  1308
        input_copy->comm_type = new_trust;
krista@2586
  1309
        
krista@2478
  1310
    status = set_trust(session, input_copy);
krista@2461
  1311
    
vb@421
  1312
    if (status != PEP_STATUS_OK)
krista@2461
  1313
        goto pep_free;
vb@421
  1314
krista@2471
  1315
    bool mistrusted_key = false;
krista@2461
  1316
        
krista@2471
  1317
    status = is_mistrusted_key(session, ident->fpr, &mistrusted_key);
krista@2471
  1318
krista@2471
  1319
    if (status != PEP_STATUS_OK)
krista@2471
  1320
        goto pep_free;
krista@2471
  1321
    
krista@2471
  1322
    if (mistrusted_key)
krista@2471
  1323
        status = delete_mistrusted_key(session, ident->fpr);
krista@2471
  1324
krista@2471
  1325
    if (status != PEP_STATUS_OK)
krista@2471
  1326
        goto pep_free;
krista@2461
  1327
        
krista@2461
  1328
    tmp_ident = new_identity(ident->address, NULL, ident->user_id, NULL);
krista@2461
  1329
krista@2461
  1330
    if (!tmp_ident)
krista@2461
  1331
        return PEP_OUT_OF_MEMORY;
krista@2461
  1332
    
krista@2595
  1333
    if (is_me(session, tmp_ident))
krista@2595
  1334
        status = myself(session, tmp_ident);
krista@2595
  1335
    else
krista@2595
  1336
        status = update_identity(session, tmp_ident);
krista@2461
  1337
    
krista@2461
  1338
    if (status != PEP_STATUS_OK)
krista@2461
  1339
        goto pep_free;
krista@2461
  1340
    
krista@2461
  1341
    // remove as default if necessary
krista@2507
  1342
    if (!EMPTYSTR(tmp_ident->fpr) && strcmp(tmp_ident->fpr, ident->fpr) == 0) {
krista@2461
  1343
        free(tmp_ident->fpr);
krista@2461
  1344
        tmp_ident->fpr = NULL;
krista@2461
  1345
        tmp_ident->comm_type = PEP_ct_unknown;
krista@2461
  1346
        status = set_identity(session, tmp_ident);
krista@2461
  1347
        if (status != PEP_STATUS_OK)
krista@2461
  1348
            goto pep_free;
krista@2461
  1349
    }
krista@2461
  1350
    
krista@2461
  1351
    char* user_default = NULL;
krista@2586
  1352
    get_main_user_fpr(session, tmp_ident->user_id, &user_default);
krista@2461
  1353
    
krista@2461
  1354
    if (!EMPTYSTR(user_default)) {
krista@2461
  1355
        if (strcmp(user_default, ident->fpr) == 0)
krista@2461
  1356
            status = refresh_userid_default_key(session, ident->user_id);
krista@2461
  1357
        if (status != PEP_STATUS_OK)
krista@2461
  1358
            goto pep_free;    
krista@2461
  1359
    }
krista@2461
  1360
            
krista@2461
  1361
pep_free:
krista@2461
  1362
    free_identity(tmp_ident);
krista@2461
  1363
    free_identity(input_copy);
Edouard@410
  1364
    return status;
Edouard@410
  1365
}
Edouard@410
  1366
vb@354
  1367
DYNAMIC_API PEP_STATUS trust_personal_key(
vb@354
  1368
        PEP_SESSION session,
vb@354
  1369
        pEp_identity *ident
vb@354
  1370
    )
vb@354
  1371
{
vb@354
  1372
    PEP_STATUS status = PEP_STATUS_OK;
vb@354
  1373
vb@354
  1374
    assert(session);
vb@354
  1375
    assert(ident);
Edouard@439
  1376
    assert(!EMPTYSTR(ident->address));
Edouard@439
  1377
    assert(!EMPTYSTR(ident->user_id));
Edouard@439
  1378
    assert(!EMPTYSTR(ident->fpr));
vb@354
  1379
Edouard@439
  1380
    if (!ident || EMPTYSTR(ident->address) || EMPTYSTR(ident->user_id) ||
edouard@1945
  1381
            EMPTYSTR(ident->fpr))
vb@354
  1382
        return PEP_ILLEGAL_VALUE;
vb@354
  1383
krista@2461
  1384
    //bool ident_has_trusted_default = false;
krista@2461
  1385
    char* ident_default_fpr = NULL;
vb@354
  1386
krista@2461
  1387
    // Before we do anything, be sure the input fpr is even eligible to be trusted
krista@2461
  1388
    PEP_comm_type input_default_ct = PEP_ct_unknown;
krista@2461
  1389
    status = get_key_rating(session, ident->fpr, &input_default_ct);
krista@2461
  1390
    if (input_default_ct < PEP_ct_strong_but_unconfirmed)
krista@2461
  1391
        return PEP_KEY_UNSUITABLE;
krista@2461
  1392
krista@2477
  1393
    status = set_pgp_keypair(session, ident->fpr);
krista@2477
  1394
    if (status != PEP_STATUS_OK)
krista@2477
  1395
        return status;
krista@2461
  1396
krista@2461
  1397
    bool me = is_me(session, ident);
krista@2461
  1398
krista@2494
  1399
    pEp_identity* ident_copy = identity_dup(ident);
krista@2494
  1400
    char* cached_fpr = NULL;
krista@2494
  1401
krista@2494
  1402
    // for setting up a temp trusted identity for the input fpr
krista@2494
  1403
    pEp_identity* tmp_id = NULL;
krista@2494
  1404
roker@2497
  1405
    // For later, in case we need to check the user default key
roker@2497
  1406
    pEp_identity* tmp_user_ident = NULL;
roker@2497
  1407
krista@2494
  1408
    if (me) {
krista@2552
  1409
        bool has_private = false;
krista@2552
  1410
        // first of all, does this key even have a private component.
krista@2552
  1411
        status = contains_priv_key(session, ident->fpr, &has_private);
krista@2552
  1412
        if (status != PEP_STATUS_OK && status != PEP_KEY_NOT_FOUND)
krista@2552
  1413
            goto pep_free;
krista@2552
  1414
            
krista@2552
  1415
        if (has_private) {
krista@2552
  1416
            status = set_own_key(session, ident_copy, ident->fpr); 
krista@2552
  1417
            goto pep_free;
krista@2552
  1418
        }
krista@2494
  1419
    }
krista@2494
  1420
    
krista@2552
  1421
    // Either it's not me, or it's me but the key has no private key. 
krista@2552
  1422
    // We're only talking about pub keys here. Moving on.
krista@2552
  1423
    
krista@2522
  1424
    // Save the input fpr, which we already tested as non-NULL
krista@2494
  1425
    cached_fpr = strdup(ident->fpr);
krista@2461
  1426
krista@2552
  1427
    // Set up a temp trusted identity for the input fpr without a comm type;
krista@2494
  1428
    tmp_id = new_identity(ident->address, ident->fpr, ident->user_id, NULL);
krista@2552
  1429
    
krista@2552
  1430
    // ->me isn't set, even if this is an own identity, so this will work.
krista@2548
  1431
    status = validate_fpr(session, tmp_id, false);
krista@2461
  1432
        
krista@2461
  1433
    if (status == PEP_STATUS_OK) {
krista@2461
  1434
        // Validate fpr gets trust DB or, when that fails, key comm type. we checked
krista@2461
  1435
        // above that the key was ok. (not revoked or expired), but we want the max.
krista@2461
  1436
        tmp_id->comm_type = _MAX(tmp_id->comm_type, input_default_ct) | PEP_ct_confirmed;
krista@2552
  1437
krista@2552
  1438
        // Get the default identity without setting the fpr                                       
krista@2552
  1439
        if (me)
krista@2552
  1440
            status = _myself(session, ident_copy, false, true);
krista@2552
  1441
        else    
krista@2552
  1442
            status = update_identity(session, ident_copy);
krista@2552
  1443
            
krista@2522
  1444
        ident_default_fpr = (EMPTYSTR(ident_copy->fpr) ? NULL : strdup(ident_copy->fpr));
krista@2461
  1445
krista@2461
  1446
        if (status == PEP_STATUS_OK) {
krista@2461
  1447
            bool trusted_default = false;
krista@2461
  1448
krista@2461
  1449
            // If there's no default, or the default is different from the input...
krista@2552
  1450
            if (me || EMPTYSTR(ident_default_fpr) || strcmp(cached_fpr, ident_default_fpr) != 0) {
krista@2461
  1451
                
krista@2461
  1452
                // If the default fpr (if there is one) is trusted and key is strong enough,
krista@2461
  1453
                // don't replace, we just set the trusted bit on this key for this user_id...
krista@2461
  1454
                // (If there's no default fpr, this won't be true anyway.)
krista@2552
  1455
                if (me || (ident_copy->comm_type >= PEP_ct_strong_but_unconfirmed && 
krista@2552
  1456
                          (ident_copy->comm_type & PEP_ct_confirmed))) {                        
krista@2461
  1457
krista@2461
  1458
                    trusted_default = true;
krista@2461
  1459
                                    
krista@2478
  1460
                    status = set_trust(session, tmp_id);
krista@2461
  1461
                    input_default_ct = tmp_id->comm_type;                    
krista@2461
  1462
                }
krista@2461
  1463
                else {
krista@2494
  1464
                    free(ident_copy->fpr);
krista@2494
  1465
                    ident_copy->fpr = strdup(cached_fpr);
krista@2494
  1466
                    ident_copy->comm_type = tmp_id->comm_type;
krista@2504
  1467
                    status = set_identity(session, ident_copy); // replace identity default
krista@2504
  1468
                    if (status == PEP_STATUS_OK) {
krista@2504
  1469
                        if ((ident_copy->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)
krista@2504
  1470
                            status = set_as_pep_user(session, ident_copy);
krista@2504
  1471
                    }            
krista@2461
  1472
                }
krista@2461
  1473
            }
krista@2461
  1474
            else { // we're setting this on the default fpr
krista@2461
  1475
                ident->comm_type = tmp_id->comm_type;
krista@2461
  1476
                status = set_identity(session, ident);
krista@2461
  1477
                trusted_default = true;
krista@2461
  1478
            }
krista@2461
  1479
            if (status == PEP_STATUS_OK && !trusted_default) {
krista@2461
  1480
                // Ok, there wasn't a trusted default, so we replaced. Thus, we also
krista@2461
  1481
                // make sure there's a trusted default on the user_id. If there
krista@2461
  1482
                // is not, we make this the default.
krista@2461
  1483
                char* user_default = NULL;
krista@2461
  1484
                status = get_main_user_fpr(session, ident->user_id, &user_default);
krista@2461
  1485
            
krista@2461
  1486
                if (status == PEP_STATUS_OK && user_default) {
krista@2494
  1487
                    tmp_user_ident = new_identity(ident->address, 
krista@2494
  1488
                                                  user_default, 
krista@2494
  1489
                                                  ident->user_id, 
krista@2494
  1490
                                                  NULL);
krista@2461
  1491
                    if (!tmp_user_ident)
krista@2461
  1492
                        status = PEP_OUT_OF_MEMORY;
krista@2461
  1493
                    else {
krista@2548
  1494
                        status = validate_fpr(session, tmp_user_ident, false);
krista@2461
  1495
                        
krista@2461
  1496
                        if (status != PEP_STATUS_OK ||
krista@2461
  1497
                            tmp_user_ident->comm_type < PEP_ct_strong_but_unconfirmed ||
krista@2461
  1498
                            !(tmp_user_ident->comm_type & PEP_ct_confirmed)) 
krista@2461
  1499
                        {
krista@2461
  1500
                            char* trusted_fpr = (trusted_default ? ident_default_fpr : cached_fpr);
krista@2461
  1501
                            status = replace_main_user_fpr(session, ident->user_id, trusted_fpr);
krista@2461
  1502
                        } 
krista@2461
  1503
                    }
krista@2461
  1504
                }
krista@2461
  1505
            }
krista@2461
  1506
        }
krista@2461
  1507
    }    
vb@354
  1508
krista@2494
  1509
pep_free:
krista@2494
  1510
    free(ident_default_fpr);
krista@2494
  1511
    free(cached_fpr);
krista@2494
  1512
    free_identity(tmp_id);
krista@2494
  1513
    free_identity(ident_copy);
krista@2494
  1514
    free_identity(tmp_user_ident);
vb@354
  1515
    return status;
vb@354
  1516
}
vb@354
  1517
Edouard@584
  1518
DYNAMIC_API PEP_STATUS own_key_is_listed(
vb@955
  1519
        PEP_SESSION session,
vb@955
  1520
        const char *fpr,
vb@955
  1521
        bool *listed
vb@955
  1522
    )
Edouard@584
  1523
{
Edouard@584
  1524
    PEP_STATUS status = PEP_STATUS_OK;
Edouard@584
  1525
    int count;
Edouard@584
  1526
    
Edouard@584
  1527
    assert(session && fpr && fpr[0] && listed);
Edouard@584
  1528
    
Edouard@584
  1529
    if (!(session && fpr && fpr[0] && listed))
Edouard@584
  1530
        return PEP_ILLEGAL_VALUE;
Edouard@584
  1531
    
Edouard@584
  1532
    *listed = false;
Edouard@584
  1533
    
Edouard@584
  1534
    sqlite3_reset(session->own_key_is_listed);
Edouard@584
  1535
    sqlite3_bind_text(session->own_key_is_listed, 1, fpr, -1, SQLITE_STATIC);
Edouard@584
  1536
    
Edouard@584
  1537
    int result;
Edouard@584
  1538
    
Edouard@584
  1539
    result = sqlite3_step(session->own_key_is_listed);
Edouard@584
  1540
    switch (result) {
Edouard@584
  1541
        case SQLITE_ROW:
Edouard@584
  1542
            count = sqlite3_column_int(session->own_key_is_listed, 0);
Edouard@584
  1543
            *listed = count > 0;
krista@2461
  1544
            status = PEP_STATUS_OK;
Edouard@584
  1545
            break;
Edouard@584
  1546
            
Edouard@584
  1547
        default:
Edouard@584
  1548
            status = PEP_UNKNOWN_ERROR;
Edouard@584
  1549
    }
Edouard@584
  1550
    
Edouard@584
  1551
    sqlite3_reset(session->own_key_is_listed);
Edouard@584
  1552
    return status;
Edouard@584
  1553
}
Edouard@584
  1554
edouard@1412
  1555
PEP_STATUS _own_identities_retrieve(
vb@955
  1556
        PEP_SESSION session,
edouard@1412
  1557
        identity_list **own_identities,
edouard@1412
  1558
        identity_flags_t excluded_flags
vb@955
  1559
      )
Edouard@584
  1560
{
Edouard@584
  1561
    PEP_STATUS status = PEP_STATUS_OK;
Edouard@584
  1562
    
vb@955
  1563
    assert(session && own_identities);
vb@955
  1564
    if (!(session && own_identities))
Edouard@584
  1565
        return PEP_ILLEGAL_VALUE;
Edouard@584
  1566
    
vb@955
  1567
    *own_identities = NULL;
vb@955
  1568
    identity_list *_own_identities = new_identity_list(NULL);
vb@955
  1569
    if (_own_identities == NULL)
Edouard@584
  1570
        goto enomem;
Edouard@584
  1571
    
vb@955
  1572
    sqlite3_reset(session->own_identities_retrieve);
Edouard@584
  1573
    
Edouard@584
  1574
    int result;
vb@955
  1575
    // address, fpr, username, user_id, comm_type, lang, flags
vb@955
  1576
    const char *address = NULL;
Edouard@584
  1577
    const char *fpr = NULL;
vb@955
  1578
    const char *username = NULL;
vb@955
  1579
    const char *user_id = NULL;
vb@955
  1580
    PEP_comm_type comm_type = PEP_ct_unknown;
vb@955
  1581
    const char *lang = NULL;
vb@955
  1582
    unsigned int flags = 0;
Edouard@584
  1583
    
vb@955
  1584
    identity_list *_bl = _own_identities;
Edouard@584
  1585
    do {
edouard@1412
  1586
        sqlite3_bind_int(session->own_identities_retrieve, 1, excluded_flags);
vb@955
  1587
        result = sqlite3_step(session->own_identities_retrieve);
Edouard@584
  1588
        switch (result) {
Edouard@584
  1589
            case SQLITE_ROW:
vb@955
  1590
                address = (const char *)
vb@955
  1591
                    sqlite3_column_text(session->own_identities_retrieve, 0);
vb@955
  1592
                fpr = (const char *)
vb@955
  1593
                    sqlite3_column_text(session->own_identities_retrieve, 1);
krista@2461
  1594
                user_id = (const char *)
krista@2461
  1595
                    sqlite3_column_text(session->own_identities_retrieve, 2);
vb@1071
  1596
                username = (const char *)
krista@2461
  1597
                    sqlite3_column_text(session->own_identities_retrieve, 3);
vb@1071
  1598
                comm_type = PEP_ct_pEp;
vb@1071
  1599
                lang = (const char *)
krista@2461
  1600
                    sqlite3_column_text(session->own_identities_retrieve, 4);
vb@1071
  1601
                flags = (unsigned int)
krista@2461
  1602
                    sqlite3_column_int(session->own_identities_retrieve, 5);
vb@955
  1603
vb@1078
  1604
                pEp_identity *ident = new_identity(address, fpr, user_id, username);
vb@1079
  1605
                if (!ident)
Edouard@584
  1606
                    goto enomem;
vb@955
  1607
                ident->comm_type = comm_type;
vb@955
  1608
                if (lang && lang[0]) {
vb@955
  1609
                    ident->lang[0] = lang[0];
vb@955
  1610
                    ident->lang[1] = lang[1];
vb@1078
  1611
                    ident->lang[2] = 0;
vb@955
  1612
                }
krista@2461
  1613
                ident->me = true;
vb@955
  1614
                ident->flags = flags;
vb@955
  1615
vb@955
  1616
                _bl = identity_list_add(_bl, ident);
vb@1080
  1617
                if (_bl == NULL) {
vb@1080
  1618
                    free_identity(ident);
vb@983
  1619
                    goto enomem;
vb@1080
  1620
                }
Edouard@584
  1621
                
Edouard@584
  1622
                break;
Edouard@584
  1623
                
Edouard@584
  1624
            case SQLITE_DONE:
Edouard@584
  1625
                break;
Edouard@584
  1626
                
Edouard@584
  1627
            default:
Edouard@584
  1628
                status = PEP_UNKNOWN_ERROR;
Edouard@584
  1629
                result = SQLITE_DONE;
Edouard@584
  1630
        }
Edouard@584
  1631
    } while (result != SQLITE_DONE);
Edouard@584
  1632
    
vb@955
  1633
    sqlite3_reset(session->own_identities_retrieve);
Edouard@584
  1634
    if (status == PEP_STATUS_OK)
vb@955
  1635
        *own_identities = _own_identities;
Edouard@584
  1636
    else
vb@955
  1637
        free_identity_list(_own_identities);
Edouard@584
  1638
    
Edouard@584
  1639
    goto the_end;
Edouard@584
  1640
    
Edouard@584
  1641
enomem:
vb@955
  1642
    free_identity_list(_own_identities);
Edouard@584
  1643
    status = PEP_OUT_OF_MEMORY;
Edouard@584
  1644
    
Edouard@584
  1645
the_end:
Edouard@584
  1646
    return status;
Edouard@584
  1647
}
vb@955
  1648
edouard@1412
  1649
DYNAMIC_API PEP_STATUS own_identities_retrieve(
edouard@1364
  1650
        PEP_SESSION session,
edouard@1412
  1651
        identity_list **own_identities
edouard@1412
  1652
      )
edouard@1412
  1653
{
edouard@1412
  1654
    return _own_identities_retrieve(session, own_identities, 0);
edouard@1412
  1655
}
edouard@1412
  1656
edouard@1412
  1657
PEP_STATUS _own_keys_retrieve(
edouard@1412
  1658
        PEP_SESSION session,
edouard@1412
  1659
        stringlist_t **keylist,
edouard@1412
  1660
        identity_flags_t excluded_flags
edouard@1364
  1661
      )
edouard@1364
  1662
{
edouard@1364
  1663
    PEP_STATUS status = PEP_STATUS_OK;
edouard@1364
  1664
    
edouard@1364
  1665
    assert(session && keylist);
edouard@1364
  1666
    if (!(session && keylist))
edouard@1364
  1667
        return PEP_ILLEGAL_VALUE;
edouard@1364
  1668
    
edouard@1364
  1669
    *keylist = NULL;
edouard@1364
  1670
    stringlist_t *_keylist = NULL;
edouard@1364
  1671
    
edouard@1394
  1672
    sqlite3_reset(session->own_keys_retrieve);
edouard@1364
  1673
    
edouard@1364
  1674
    int result;
edouard@1364
  1675
    char *fpr = NULL;
edouard@1364
  1676
    
edouard@1364
  1677
    stringlist_t *_bl = _keylist;
edouard@1364
  1678
    do {
edouard@1412
  1679
        sqlite3_bind_int(session->own_keys_retrieve, 1, excluded_flags);
edouard@1394
  1680
        result = sqlite3_step(session->own_keys_retrieve);
edouard@1364
  1681
        switch (result) {
edouard@1364
  1682
            case SQLITE_ROW:
edouard@1394
  1683
                fpr = strdup((const char *) sqlite3_column_text(session->own_keys_retrieve, 0));
edouard@1364
  1684
                if(fpr == NULL)
edouard@1364
  1685
                    goto enomem;
edouard@1364
  1686
edouard@1364
  1687
                _bl = stringlist_add(_bl, fpr);
edouard@1364
  1688
                if (_bl == NULL) {
edouard@1364
  1689
                    free(fpr);
edouard@1364
  1690
                    goto enomem;
edouard@1364
  1691
                }
edouard@1364
  1692
                if (_keylist == NULL)
edouard@1364
  1693
                    _keylist = _bl;
edouard@1364
  1694
                
edouard@1364
  1695
                break;
edouard@1364
  1696
                
edouard@1364
  1697
            case SQLITE_DONE:
edouard@1364
  1698
                break;
edouard@1364
  1699
                
edouard@1364
  1700
            default:
edouard@1364
  1701
                status = PEP_UNKNOWN_ERROR;
edouard@1364
  1702
                result = SQLITE_DONE;
edouard@1364
  1703
        }
edouard@1364
  1704
    } while (result != SQLITE_DONE);
edouard@1364
  1705
    
edouard@1394
  1706
    sqlite3_reset(session->own_keys_retrieve);
edouard@1364
  1707
    if (status == PEP_STATUS_OK)
edouard@1364
  1708
        *keylist = _keylist;
edouard@1364
  1709
    else
edouard@1364
  1710
        free_stringlist(_keylist);
edouard@1364
  1711
    
edouard@1364
  1712
    goto the_end;
edouard@1364
  1713
    
edouard@1364
  1714
enomem:
edouard@1364
  1715
    free_stringlist(_keylist);
edouard@1364
  1716
    status = PEP_OUT_OF_MEMORY;
edouard@1364
  1717
    
edouard@1364
  1718
the_end:
edouard@1364
  1719
    return status;
edouard@1364
  1720
}
edouard@1364
  1721
edouard@1412
  1722
DYNAMIC_API PEP_STATUS own_keys_retrieve(PEP_SESSION session, stringlist_t **keylist)
edouard@1412
  1723
{
edouard@1412
  1724
    return _own_keys_retrieve(session, keylist, 0);
edouard@1412
  1725
}
edouard@1412
  1726
edouard@1394
  1727
DYNAMIC_API PEP_STATUS set_own_key(
edouard@1394
  1728
       PEP_SESSION session,
vb@2535
  1729
       pEp_identity *me,
edouard@1394
  1730
       const char *fpr
edouard@1394
  1731
    )
edouard@1394
  1732
{
edouard@1394
  1733
    PEP_STATUS status = PEP_STATUS_OK;
edouard@1394
  1734
    
vb@2535
  1735
    assert(session && me);
vb@2535
  1736
    assert(!EMPTYSTR(fpr));
vb@2535
  1737
    assert(!EMPTYSTR(me->address));
vb@2535
  1738
    assert(!EMPTYSTR(me->user_id));
vb@2535
  1739
    assert(!EMPTYSTR(me->username));
vb@2535
  1740
vb@2535
  1741
    if (!session || !me || EMPTYSTR(fpr) || EMPTYSTR(me->address) ||
vb@2535
  1742
            EMPTYSTR(me->user_id) || EMPTYSTR(me->username))
edouard@1394
  1743
        return PEP_ILLEGAL_VALUE;
vb@2535
  1744
vb@2535
  1745
    status = _myself(session, me, false, true);
vb@2535
  1746
    // we do not need a valid key but dislike other errors
vb@2535
  1747
    if (status != PEP_STATUS_OK && status != PEP_GET_KEY_FAILED && status != PEP_KEY_UNSUITABLE)
krista@2461
  1748
        return status;
vb@2535
  1749
    status = PEP_STATUS_OK;
krista@2805
  1750
krista@2805
  1751
    bool private = false;
krista@2805
  1752
    status = contains_priv_key(session, fpr, &private);
krista@2805
  1753
    
krista@2805
  1754
    if (status != PEP_STATUS_OK)
krista@2805
  1755
        return status;
krista@2805
  1756
        
krista@2805
  1757
    if (!private)
krista@2805
  1758
        return PEP_KEY_UNSUITABLE;
vb@2535
  1759
 
vb@2535
  1760
    if (me->fpr)
vb@2535
  1761
        free(me->fpr);
vb@2535
  1762
    me->fpr = strdup(fpr);
vb@2535
  1763
    assert(me->fpr);
vb@2535
  1764
    if (!me->fpr)
vb@2535
  1765
        return PEP_OUT_OF_MEMORY;
krista@2461
  1766
krista@2548
  1767
    status = validate_fpr(session, me, false);
vb@2535
  1768
    if (status)
vb@2535
  1769
        return status;
vb@2535
  1770
vb@2535
  1771
    me->comm_type = PEP_ct_pEp;
vb@2535
  1772
    status = set_identity(session, me);
edouard@1394
  1773
    return status;
edouard@1394
  1774
}
krista@1357
  1775
krista@1357
  1776
PEP_STATUS contains_priv_key(PEP_SESSION session, const char *fpr,
krista@1357
  1777
                             bool *has_private) {
krista@1357
  1778
krista@1357
  1779
    assert(session);
krista@1357
  1780
    assert(fpr);
krista@1357
  1781
    assert(has_private);
krista@1357
  1782
    
krista@1357
  1783
    if (!(session && fpr && has_private))
krista@1357
  1784
        return PEP_ILLEGAL_VALUE;
krista@1357
  1785
krista@1357
  1786
    return session->cryptotech[PEP_crypt_OpenPGP].contains_priv_key(session, fpr, has_private);
edouard@1385
  1787
}
krista@2471
  1788
krista@2471
  1789
PEP_STATUS add_mistrusted_key(PEP_SESSION session, const char* fpr)
krista@2471
  1790
{
krista@2471
  1791
    int result;
krista@2471
  1792
krista@2471
  1793
    assert(!EMPTYSTR(fpr));
krista@2471
  1794
    
krista@2471
  1795
    if (!(session) || EMPTYSTR(fpr))
krista@2471
  1796
        return PEP_ILLEGAL_VALUE;
krista@2471
  1797
krista@2471
  1798
    sqlite3_reset(session->add_mistrusted_key);
krista@2471
  1799
    sqlite3_bind_text(session->add_mistrusted_key, 1, fpr, -1,
krista@2471
  1800
            SQLITE_STATIC);
krista@2471
  1801
krista@2471
  1802
    result = sqlite3_step(session->add_mistrusted_key);
krista@2471
  1803
    sqlite3_reset(session->add_mistrusted_key);
krista@2471
  1804
krista@2471
  1805
    if (result != SQLITE_DONE)
krista@2471
  1806
        return PEP_CANNOT_SET_PGP_KEYPAIR; // FIXME: Better status?
krista@2471
  1807
krista@2471
  1808
    return PEP_STATUS_OK;
krista@2471
  1809
}
krista@2471
  1810
krista@2471
  1811
PEP_STATUS delete_mistrusted_key(PEP_SESSION session, const char* fpr)
krista@2471
  1812
{
krista@2471
  1813
    int result;
krista@2471
  1814
krista@2471
  1815
    assert(!EMPTYSTR(fpr));
krista@2471
  1816
    
krista@2471
  1817
    if (!(session) || EMPTYSTR(fpr))
krista@2471
  1818
        return PEP_ILLEGAL_VALUE;
krista@2471
  1819
krista@2471
  1820
    sqlite3_reset(session->delete_mistrusted_key);
krista@2471
  1821
    sqlite3_bind_text(session->delete_mistrusted_key, 1, fpr, -1,
krista@2471
  1822
            SQLITE_STATIC);
krista@2471
  1823
krista@2471
  1824
    result = sqlite3_step(session->delete_mistrusted_key);
krista@2471
  1825
    sqlite3_reset(session->delete_mistrusted_key);
krista@2471
  1826
krista@2471
  1827
    if (result != SQLITE_DONE)
krista@2471
  1828
        return PEP_UNKNOWN_ERROR; // FIXME: Better status?
krista@2471
  1829
krista@2471
  1830
    return PEP_STATUS_OK;
krista@2471
  1831
}
krista@2471
  1832
krista@2471
  1833
PEP_STATUS is_mistrusted_key(PEP_SESSION session, const char* fpr,
krista@2471
  1834
                             bool* mistrusted)
krista@2471
  1835
{
krista@2471
  1836
    PEP_STATUS status = PEP_STATUS_OK;
krista@2471
  1837
krista@2471
  1838
    assert(session);
krista@2471
  1839
    assert(!EMPTYSTR(fpr));
krista@2471
  1840
krista@2471
  1841
    if (!(session && fpr))
krista@2471
  1842
        return PEP_ILLEGAL_VALUE;
krista@2471
  1843
krista@2471
  1844
    *mistrusted = false;
krista@2471
  1845
krista@2471
  1846
    sqlite3_reset(session->is_mistrusted_key);
krista@2471
  1847
    sqlite3_bind_text(session->is_mistrusted_key, 1, fpr, -1, SQLITE_STATIC);
krista@2471
  1848
krista@2471
  1849
    int result;
krista@2471
  1850
krista@2471
  1851
    result = sqlite3_step(session->is_mistrusted_key);
krista@2471
  1852
    switch (result) {
krista@2471
  1853
    case SQLITE_ROW:
krista@2471
  1854
        *mistrusted = sqlite3_column_int(session->is_mistrusted_key, 0);
krista@2471
  1855
        status = PEP_STATUS_OK;
krista@2471
  1856
        break;
krista@2471
  1857
krista@2471
  1858
    default:
krista@2471
  1859
        status = PEP_UNKNOWN_ERROR;
krista@2471
  1860
    }
krista@2471
  1861
krista@2471
  1862
    sqlite3_reset(session->is_mistrusted_key);
krista@2471
  1863
    return status;
krista@2471
  1864
}
vb@2539
  1865
vb@2539
  1866
#ifdef USE_GPG
vb@2539
  1867
PEP_STATUS pgp_find_trusted_private_keys(
vb@2539
  1868
        PEP_SESSION session, stringlist_t **keylist
vb@2539
  1869
    );
vb@2539
  1870
vb@2539
  1871
enum _pgp_thing {
vb@2539
  1872
    _pgp_none = 0,
vb@2539
  1873
    _pgp_fpr,
vb@2539
  1874
    _pgp_email,
vb@2539
  1875
    _pgp_name
vb@2539
  1876
};
vb@2539
  1877
vb@2539
  1878
static enum _pgp_thing _pgp_thing_next(enum _pgp_thing thing)
vb@2539
  1879
{
vb@2539
  1880
    switch (thing) {
vb@2539
  1881
        case _pgp_fpr:
vb@2539
  1882
            return _pgp_email;
vb@2539
  1883
        case _pgp_email:
vb@2539
  1884
            return _pgp_name;
vb@2539
  1885
        case _pgp_name:
vb@2539
  1886
            return _pgp_fpr;
vb@2539
  1887
        default:
vb@2539
  1888
            return _pgp_fpr;
vb@2539
  1889
    }
vb@2539
  1890
}
vb@2539
  1891
vb@2539
  1892
PEP_STATUS pgp_import_ultimately_trusted_keypairs(PEP_SESSION session) {
vb@2539
  1893
    assert(session);
vb@2539
  1894
    if (!session)
vb@2539
  1895
        return PEP_ILLEGAL_VALUE;
vb@2539
  1896
vb@2539
  1897
    stringlist_t* priv_keylist = NULL;
vb@2539
  1898
    PEP_STATUS status = PEP_STATUS_OK;
vb@2539
  1899
vb@2539
  1900
    // 1. get keys
vb@2539
  1901
    status = pgp_find_trusted_private_keys(session, &priv_keylist);
vb@2539
  1902
    if (status)
vb@2539
  1903
        return status;
vb@2539
  1904
vb@2539
  1905
    pEp_identity *identity = NULL;
vb@2539
  1906
    stringlist_t *_sl;
vb@2541
  1907
	
vb@2541
  1908
    char *fpr = NULL;
vb@2539
  1909
    enum _pgp_thing thing = _pgp_none;
vb@2539
  1910
    for (_sl = priv_keylist; _sl && _sl->value; _sl = _sl->next) {
vb@2539
  1911
        thing = _pgp_thing_next(thing);
vb@2539
  1912
        switch (thing) {
vb@2539
  1913
            case _pgp_fpr:
vb@2539
  1914
                identity = new_identity(NULL, NULL, PEP_OWN_USERID, NULL);
vb@2539
  1915
                if (!identity)
vb@2539
  1916
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1917
                identity->me = true;
vb@2539
  1918
                fpr = strdup(_sl->value);
vb@2539
  1919
                assert(fpr);
vb@2539
  1920
                if (!fpr) {
vb@2539
  1921
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1922
                    free_identity(identity);
vb@2539
  1923
                }
vb@2539
  1924
                break;
vb@2539
  1925
            case _pgp_email:
vb@2539
  1926
                assert(identity);
vb@2539
  1927
                identity->address = strdup(_sl->value);
vb@2539
  1928
                assert(identity->address);
vb@2539
  1929
                if (!identity->address) {
vb@2539
  1930
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1931
                    free_identity(identity);
vb@2539
  1932
                }
vb@2539
  1933
                break;
vb@2539
  1934
            case _pgp_name:
vb@2539
  1935
                assert(identity);
vb@2539
  1936
                identity->username = strdup(_sl->value);
vb@2539
  1937
                assert(identity->username);
vb@2539
  1938
                if (!identity->username)
vb@2539
  1939
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1940
                else
vb@2539
  1941
                    status = set_own_key(session, identity, fpr);
vb@2539
  1942
                free_identity(identity);
vb@2539
  1943
                identity = NULL;
vb@2539
  1944
                break;
vb@2539
  1945
            default:
vb@2539
  1946
                assert(0);
vb@2539
  1947
                free_identity(identity);
vb@2539
  1948
                status = PEP_UNKNOWN_ERROR;
vb@2539
  1949
        }
vb@2539
  1950
        if (status)
vb@2539
  1951
            break;
vb@2539
  1952
    }
vb@2539
  1953
    
vb@2539
  1954
    free_stringlist(priv_keylist);
vb@2539
  1955
    return status;
vb@2539
  1956
}
vb@2539
  1957
#endif // USE_GPG