src/keymanagement.c
author Krista Bennett <krista@pep-project.org>
Fri, 05 Oct 2018 00:57:35 +0200
branchENGINE-463
changeset 2995 6f2f9a7c060e
parent 2985 536d628a21a2
child 3001 8c1aafb3ad57
child 3011 a64991e4c87c
permissions -rw-r--r--
ENGINE-463: the code seems to work, but I've broken the tests that force the error condition I want to examine, and I'm too tired to fix them this late without breaking more things. Use at your own risk atm.
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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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    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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                 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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        ct = PEP_ct_key_expired;        
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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_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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// 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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    PEP_STATUS status = PEP_STATUS_OK;
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    if (!stored_identity || EMPTYSTR(stored_identity->user_id)
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        || !is_identity_default || !is_user_default || !is_address_default)
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        return PEP_ILLEGAL_VALUE;
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    *is_identity_default = *is_user_default = *is_address_default = false;
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    PEP_comm_type first_reject_comm_type = PEP_ct_key_not_found;
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    PEP_STATUS first_reject_status = PEP_KEY_NOT_FOUND;
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    char* stored_fpr = stored_identity->fpr;
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   291
    // Input: stored identity retrieved from database
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    // if stored identity contains a default key
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   293
    if (!EMPTYSTR(stored_fpr)) {
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   294
        status = validate_fpr(session, stored_identity, check_blacklist);    
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   295
        if (status == PEP_STATUS_OK && !EMPTYSTR(stored_identity->fpr)) {
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   296
            *is_identity_default = *is_address_default = true;
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   297
            return status;
krista@2461
   298
        }
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   299
        else if (status != PEP_KEY_NOT_FOUND) {
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   300
            first_reject_status = status;
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   301
            first_reject_comm_type = stored_identity->comm_type;
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   302
        }
krista@2461
   303
    }
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   304
    // if no valid default stored identity key found
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   305
    free(stored_identity->fpr);
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   306
    stored_identity->fpr = NULL;
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   307
    
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   308
    char* user_fpr = NULL;
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   309
    status = get_user_default_key(session, stored_identity->user_id, &user_fpr);
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   310
    
krista@2461
   311
    if (!EMPTYSTR(user_fpr)) {             
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   312
        // There exists a default key for user, so validate
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   313
        stored_identity->fpr = user_fpr;
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   314
        status = validate_fpr(session, stored_identity, check_blacklist);
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   315
        if (status == PEP_STATUS_OK && stored_identity->fpr) {
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   316
            *is_user_default = true;
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   317
            *is_address_default = key_matches_address(session, 
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   318
                                                      stored_identity->address,
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   319
                                                      stored_identity->fpr);
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   320
            return status;
krista@2461
   321
        }        
krista@2461
   322
        else if (status != PEP_KEY_NOT_FOUND && first_reject_status != PEP_KEY_NOT_FOUND) {
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   323
            first_reject_status = status;
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   324
            first_reject_comm_type = stored_identity->comm_type;
krista@2461
   325
        }
krista@2461
   326
    }
krista@2461
   327
    
krista@2548
   328
    status = elect_pubkey(session, stored_identity, check_blacklist);
krista@2461
   329
    if (status == PEP_STATUS_OK) {
krista@2461
   330
        if (!EMPTYSTR(stored_identity->fpr))
krista@2548
   331
            validate_fpr(session, stored_identity, false); // blacklist already filtered of needed
krista@2461
   332
    }    
krista@2461
   333
    else if (status != PEP_KEY_NOT_FOUND && first_reject_status != PEP_KEY_NOT_FOUND) {
krista@2461
   334
        first_reject_status = status;
krista@2461
   335
        first_reject_comm_type = stored_identity->comm_type;
krista@2461
   336
    }
krista@2461
   337
    
krista@2461
   338
    switch (stored_identity->comm_type) {
krista@2461
   339
        case PEP_ct_key_revoked:
krista@2461
   340
        case PEP_ct_key_b0rken:
krista@2461
   341
        case PEP_ct_key_expired:
krista@2593
   342
        case PEP_ct_compromised:
krista@2461
   343
        case PEP_ct_mistrusted:
krista@2461
   344
            // this only happens when it's all there is
krista@2461
   345
            status = first_reject_status;
krista@2461
   346
            free(stored_identity->fpr);
krista@2461
   347
            stored_identity->fpr = NULL;
krista@2461
   348
            stored_identity->comm_type = first_reject_comm_type;
krista@2461
   349
            break;    
krista@2461
   350
        default:
krista@2548
   351
            if (check_blacklist && status == PEP_KEY_BLACKLISTED) {
krista@2548
   352
                free(stored_identity->fpr);
krista@2548
   353
                stored_identity->fpr = NULL;
krista@2548
   354
                stored_identity->comm_type = PEP_ct_key_not_found;
krista@2548
   355
            }
krista@2461
   356
            break;
krista@2461
   357
    }
krista@2461
   358
    return status;
krista@2461
   359
}
krista@2461
   360
krista@2461
   361
static void transfer_ident_lang_and_flags(pEp_identity* new_ident,
krista@2461
   362
                                          pEp_identity* stored_ident) {
krista@2461
   363
    if (new_ident->lang[0] == 0) {
krista@2461
   364
      new_ident->lang[0] = stored_ident->lang[0];
krista@2461
   365
      new_ident->lang[1] = stored_ident->lang[1];
krista@2461
   366
      new_ident->lang[2] = 0;
krista@2461
   367
    }
krista@2461
   368
krista@2461
   369
    new_ident->flags = stored_ident->flags;
krista@2461
   370
    new_ident->me = new_ident->me || stored_ident->me;
krista@2461
   371
}
krista@2461
   372
krista@2519
   373
static void adjust_pep_trust_status(PEP_SESSION session, pEp_identity* identity) {
krista@2519
   374
    assert(session);
krista@2519
   375
    assert(identity);
krista@2519
   376
    
krista@2519
   377
    if (identity->comm_type < PEP_ct_strong_but_unconfirmed ||
krista@2519
   378
        (identity->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)
krista@2519
   379
        return;
krista@2519
   380
    
krista@2519
   381
    bool pep_user;
krista@2519
   382
    
krista@2519
   383
    is_pep_user(session, identity, &pep_user);
krista@2519
   384
    
krista@2519
   385
    if (pep_user) {
krista@2519
   386
        PEP_comm_type confirmation_status = identity->comm_type & PEP_ct_confirmed;
krista@2519
   387
        identity->comm_type = PEP_ct_pEp_unconfirmed | confirmation_status;    
krista@2519
   388
    }
krista@2519
   389
}
krista@2519
   390
krista@2519
   391
krista@2461
   392
static PEP_STATUS prepare_updated_identity(PEP_SESSION session,
krista@2461
   393
                                                 pEp_identity* return_id,
krista@2461
   394
                                                 pEp_identity* stored_ident,
krista@2461
   395
                                                 bool store) {
krista@2461
   396
    
krista@2461
   397
    if (!session || !return_id || !stored_ident)
krista@2461
   398
        return PEP_ILLEGAL_VALUE;
krista@2461
   399
    
krista@2461
   400
    PEP_STATUS status;
krista@2461
   401
    
krista@2461
   402
    bool is_identity_default, is_user_default, is_address_default;
krista@2461
   403
    status = get_valid_pubkey(session, stored_ident,
krista@2461
   404
                                &is_identity_default,
krista@2461
   405
                                &is_user_default,
krista@2548
   406
                                &is_address_default,
krista@2548
   407
                              false);
krista@2461
   408
                                
krista@2461
   409
    if (status == PEP_STATUS_OK && stored_ident->fpr && *(stored_ident->fpr) != '\0') {
krista@2461
   410
    // set identity comm_type from trust db (user_id, FPR)
krista@2461
   411
        status = get_trust(session, stored_ident);
krista@2461
   412
        if (status == PEP_CANNOT_FIND_IDENTITY || stored_ident->comm_type == PEP_ct_unknown) {
krista@2461
   413
            // This is OK - there is no trust DB entry, but we
krista@2461
   414
            // found a key. We won't store this, but we'll
krista@2461
   415
            // use it.
krista@2461
   416
            PEP_comm_type ct = PEP_ct_unknown;
krista@2461
   417
            status = get_key_rating(session, stored_ident->fpr, &ct);
krista@2461
   418
            stored_ident->comm_type = ct;
krista@2461
   419
        }
krista@2461
   420
    }
krista@2471
   421
    else {
krista@2471
   422
        if (stored_ident->comm_type == PEP_ct_unknown)
krista@2471
   423
            stored_ident->comm_type = PEP_ct_key_not_found;
krista@2471
   424
    }
krista@2461
   425
    free(return_id->fpr);
krista@2461
   426
    return_id->fpr = NULL;
krista@2461
   427
    if (status == PEP_STATUS_OK && !EMPTYSTR(stored_ident->fpr))
krista@2461
   428
        return_id->fpr = strdup(stored_ident->fpr);
krista@2461
   429
        
krista@2461
   430
    return_id->comm_type = stored_ident->comm_type;
krista@2520
   431
                    
krista@2461
   432
    // We patch the DB with the input username, but if we didn't have
krista@2461
   433
    // one, we pull it out of storage if available.
krista@2461
   434
    // (also, if the input username is "anonymous" and there exists
krista@2461
   435
    //  a DB username, we replace)
krista@2461
   436
    if (!EMPTYSTR(stored_ident->username)) {
krista@2461
   437
        if (!EMPTYSTR(return_id->username) && 
krista@2493
   438
            (strcasecmp(return_id->username, return_id->address) == 0)) {
krista@2461
   439
            free(return_id->username);
krista@2500
   440
            return_id->username = NULL;
krista@2461
   441
        }
krista@2461
   442
        if (EMPTYSTR(return_id->username)) {
krista@2461
   443
            free(return_id->username);
krista@2461
   444
            return_id->username = strdup(stored_ident->username);
krista@2461
   445
        }
krista@2461
   446
    }
krista@2493
   447
    else {
krista@2493
   448
        if (EMPTYSTR(return_id->username))
krista@2493
   449
            return_id->username = strdup(return_id->address);
krista@2493
   450
    }
krista@2461
   451
    
krista@2461
   452
    return_id->me = stored_ident->me;
krista@2461
   453
    
krista@2461
   454
    // FIXME: Do we ALWAYS do this? We probably should...
krista@2461
   455
    if (EMPTYSTR(return_id->user_id)) {
krista@2461
   456
        free(return_id->user_id);
krista@2461
   457
        return_id->user_id = strdup(stored_ident->user_id);
krista@2520
   458
    } 
krista@2520
   459
    
krista@2520
   460
    adjust_pep_trust_status(session, return_id);
krista@2520
   461
   
krista@2461
   462
    // Call set_identity() to store
krista@2461
   463
    if ((is_identity_default || is_user_default) &&
krista@2461
   464
         is_address_default) {                 
krista@2461
   465
         // if we got an fpr which is default for either user
krista@2461
   466
         // or identity AND is valid for this address, set in DB
krista@2461
   467
         // as default
krista@2461
   468
         status = set_identity(session, return_id);
krista@2461
   469
    }
krista@2461
   470
    else {
krista@2461
   471
        // Store without default fpr/ct, but return the fpr and ct 
krista@2461
   472
        // for current use
krista@2461
   473
        char* save_fpr = return_id->fpr;
krista@2461
   474
        PEP_comm_type save_ct = return_id->comm_type;
krista@2461
   475
        return_id->fpr = NULL;
krista@2461
   476
        return_id->comm_type = PEP_ct_unknown;
krista@2461
   477
        PEP_STATUS save_status = status;
krista@2461
   478
        status = set_identity(session, return_id);
krista@2461
   479
        if (save_status != PEP_STATUS_OK)
krista@2461
   480
            status = save_status;
krista@2461
   481
        return_id->fpr = save_fpr;
krista@2461
   482
        return_id->comm_type = save_ct;
krista@2461
   483
    }
krista@2461
   484
    
krista@2461
   485
    transfer_ident_lang_and_flags(return_id, stored_ident);
krista@2461
   486
    
krista@2477
   487
    if (return_id->comm_type == PEP_ct_unknown)
krista@2477
   488
        return_id->comm_type = PEP_ct_key_not_found;
krista@2477
   489
    
krista@2461
   490
    return status;
krista@2461
   491
}
krista@2461
   492
edouard@1385
   493
DYNAMIC_API PEP_STATUS update_identity(
edouard@1385
   494
        PEP_SESSION session, pEp_identity * identity
vb@0
   495
    )
vb@0
   496
{
vb@0
   497
    PEP_STATUS status;
vb@0
   498
vb@0
   499
    assert(session);
vb@0
   500
    assert(identity);
Edouard@439
   501
    assert(!EMPTYSTR(identity->address));
vb@0
   502
Edouard@439
   503
    if (!(session && identity && !EMPTYSTR(identity->address)))
krista@2501
   504
        return PEP_ILLEGAL_VALUE;
vb@191
   505
krista@2461
   506
    char* default_own_id = NULL;
krista@2461
   507
    status = get_default_own_userid(session, &default_own_id);    
krista@2461
   508
krista@2461
   509
    // Is this me, temporary or not? If so, BAIL.
krista@2461
   510
    if (identity->me || 
krista@2461
   511
       (default_own_id && identity->user_id && (strcmp(default_own_id, identity->user_id) == 0))) 
krista@2461
   512
    {
vb@2574
   513
        free(default_own_id);
krista@2461
   514
        return PEP_ILLEGAL_VALUE;
vb@1078
   515
    }
vb@1078
   516
krista@2461
   517
    // We have, at least, an address.
krista@2461
   518
    // Retrieve stored identity information!    
krista@2461
   519
    pEp_identity* stored_ident = NULL;
Edouard@559
   520
krista@2461
   521
    if (!EMPTYSTR(identity->user_id)) {            
krista@2461
   522
        // (we're gonna update the trust/fpr anyway, so we use the no-fpr-from-trust-db variant)
krista@2461
   523
        //      * do get_identity() to retrieve stored identity information
krista@2461
   524
        status = get_identity_without_trust_check(session, identity->address, identity->user_id, &stored_ident);
krista@2461
   525
krista@2461
   526
        // Before we start - if there was no stored identity, we should check to make sure we don't
krista@2461
   527
        // have a stored identity with a temporary user_id that differs from the input user_id. This
krista@2461
   528
        // happens in multithreaded environments sometimes.
krista@2461
   529
        if (!stored_ident) {
krista@2461
   530
            identity_list* id_list = NULL;
krista@2461
   531
            status = get_identities_by_address(session, identity->address, &id_list);
krista@2461
   532
krista@2461
   533
            if (id_list) {
krista@2461
   534
                identity_list* id_curr = id_list;
krista@2985
   535
                bool input_is_TOFU = strstr(identity->user_id, "TOFU_") == identity->user_id;
krista@2461
   536
                while (id_curr) {
krista@2461
   537
                    pEp_identity* this_id = id_curr->ident;
krista@2461
   538
                    if (this_id) {
krista@2461
   539
                        char* this_uid = this_id->user_id;
krista@2985
   540
                        bool curr_is_TOFU = strstr(this_uid, "TOFU_") == this_uid;
krista@2985
   541
                        if (this_uid) {
krista@2985
   542
                            if (curr_is_TOFU && !input_is_TOFU) {
krista@2985
   543
                                // FIXME: should we also be fixing pEp_own_userId in this
krista@2985
   544
                                // function here?
krista@2461
   545
                                
krista@2985
   546
                                // if usernames match, we replace the userid. Or if the temp username
krista@2985
   547
                                // is anonymous.
krista@2985
   548
                                // FIXME: do we need to create an address match function which
krista@2985
   549
                                // matches the whole dot-and-case rigamarole from 
krista@2985
   550
                                if (EMPTYSTR(this_id->username) ||
krista@2985
   551
                                    strcasecmp(this_id->username, this_id->address) == 0 ||
krista@2985
   552
                                    (identity->username && 
krista@2985
   553
                                     strcasecmp(identity->username, 
krista@2985
   554
                                                this_id->username) == 0)) {
krista@2985
   555
                                    
krista@2985
   556
                                    // Ok, we have a temp ID. We have to replace this
krista@2985
   557
                                    // with the real ID.
krista@2985
   558
                                    status = replace_userid(session, 
krista@2985
   559
                                                            this_uid, 
krista@2985
   560
                                                            identity->user_id);
krista@2985
   561
                                    if (status != PEP_STATUS_OK) {
krista@2985
   562
                                        free_identity_list(id_list);
krista@2985
   563
                                        free(default_own_id);
krista@2985
   564
                                        return status;
krista@2985
   565
                                    }
krista@2985
   566
                                        
krista@2985
   567
                                    free(this_uid);
krista@2985
   568
                                    this_uid = NULL;
krista@2985
   569
                                    
krista@2985
   570
                                    // Reflect the change we just made to the DB
krista@2985
   571
                                    this_id->user_id = strdup(identity->user_id);
krista@2985
   572
                                    stored_ident = this_id;
krista@2985
   573
                                    // FIXME: free list.
krista@2985
   574
                                    break;                                
krista@2461
   575
                                }
krista@2985
   576
                            }
krista@2985
   577
                            else if (input_is_TOFU && !curr_is_TOFU) {
krista@2985
   578
                                // Replace ruthlessly - this is NOT supposed to happen.
krista@2985
   579
                                // BAD APP BEHAVIOUR.
krista@2995
   580
                                free(identity->user_id);
krista@2995
   581
                                identity->user_id = strdup(this_id->user_id);
krista@2461
   582
                                stored_ident = this_id;
krista@2461
   583
                                // FIXME: free list.
krista@2461
   584
                                break;                                
krista@2461
   585
                            }                            
krista@2461
   586
                        } 
krista@2461
   587
                    }
krista@2461
   588
                    id_curr = id_curr->next;
krista@2461
   589
                }
krista@2461
   590
            }
krista@2461
   591
        } 
krista@2461
   592
                
krista@2461
   593
        if (status == PEP_STATUS_OK && stored_ident) { 
krista@2461
   594
            //  * if identity available
krista@2461
   595
            //      * patch it with username
krista@2461
   596
            //          (note: this will happen when 
krista@2461
   597
            //           setting automatically below...)
krista@2461
   598
            //      * elect valid key for identity
krista@2461
   599
            //    * if valid key exists
krista@2461
   600
            //        * set return value's fpr
krista@2461
   601
            status = prepare_updated_identity(session,
krista@2461
   602
                                              identity,
krista@2461
   603
                                              stored_ident, true);
vb@1015
   604
        }
krista@2461
   605
        //  * else (identity unavailable)
krista@2461
   606
        else {
krista@2461
   607
            status = PEP_STATUS_OK;
krista@2493
   608
krista@2493
   609
            // FIXME: We may need to roll this back.
krista@2493
   610
            // FIXME: change docs if we don't
krista@2461
   611
            //  if we only have user_id and address and identity not available
krista@2461
   612
            //      * return error status (identity not found)
krista@2493
   613
            if (EMPTYSTR(identity->username)) {
krista@2493
   614
                free(identity->username);
krista@2493
   615
                identity->username = strdup(identity->address);
krista@2493
   616
            }
krista@2461
   617
            
krista@2461
   618
            // Otherwise, if we had user_id, address, and username:
krista@2461
   619
            //    * create identity with user_id, address, username
krista@2461
   620
            //      (this is the input id without the fpr + comm type!)
krista@2493
   621
krista@2493
   622
            if (status == PEP_STATUS_OK) {
krista@2548
   623
                elect_pubkey(session, identity, false);
krista@2493
   624
            }
krista@2493
   625
                        
krista@2461
   626
            //    * We've already checked and retrieved
krista@2461
   627
            //      any applicable temporary identities above. If we're 
krista@2461
   628
            //      here, none of them fit.
krista@2461
   629
            //    * call set_identity() to store
krista@2519
   630
            if (status == PEP_STATUS_OK) {
krista@2493
   631
                // FIXME: Do we set if we had to copy in the address?
krista@2519
   632
                adjust_pep_trust_status(session, identity);
krista@2461
   633
                status = set_identity(session, identity);
krista@2519
   634
            }
krista@2461
   635
            //  * Return: created identity
krista@2461
   636
        }        
krista@2461
   637
    }
krista@2461
   638
    else if (!EMPTYSTR(identity->username)) {
krista@2461
   639
        /*
krista@2461
   640
         * Temporary identity information with username supplied
krista@2461
   641
            * Input: address, username (no others)
krista@2461
   642
         */
krista@2461
   643
         
krista@2461
   644
        //  * See if there is an own identity that uses this address. If so, we'll
krista@2461
   645
        //    prefer that
krista@2461
   646
        stored_ident = NULL;
krista@2461
   647
        
krista@2461
   648
        if (default_own_id) {
krista@2461
   649
            status = get_identity(session, 
krista@2512
   650
                                  identity->address, 
krista@2461
   651
                                  default_own_id, 
krista@2461
   652
                                  &stored_ident);
krista@2461
   653
        }
krista@2461
   654
        // If there isn't an own identity, search for a non-temp stored ident
krista@2461
   655
        // with this address.                      
krista@2461
   656
        if (status == PEP_CANNOT_FIND_IDENTITY || !stored_ident) { 
krista@2461
   657
 
krista@2461
   658
            identity_list* id_list = NULL;
krista@2461
   659
            status = get_identities_by_address(session, identity->address, &id_list);
vb@1015
   660
krista@2461
   661
            if (id_list) {
krista@2461
   662
                identity_list* id_curr = id_list;
krista@2461
   663
                while (id_curr) {
krista@2461
   664
                    pEp_identity* this_id = id_curr->ident;
krista@2461
   665
                    if (this_id) {
krista@2461
   666
                        char* this_uid = this_id->user_id;
krista@2461
   667
                        if (this_uid && (strstr(this_uid, "TOFU_") != this_uid)) {
krista@2461
   668
                            // if usernames match, we replace the userid.
krista@2461
   669
                            if (identity->username && 
krista@2461
   670
                                strcasecmp(identity->username, 
krista@2461
   671
                                           this_id->username) == 0) {
krista@2461
   672
                                
krista@2461
   673
                                // Ok, we have a real ID. Copy it!
krista@2461
   674
                                identity->user_id = strdup(this_uid);
vb@2575
   675
                                assert(identity->user_id);
krista@2461
   676
                                if (!identity->user_id)
vb@2575
   677
                                    goto enomem;
vb@2575
   678
krista@2461
   679
                                stored_ident = this_id;
krista@2461
   680
                                
krista@2461
   681
                                break;                                
krista@2461
   682
                            }                            
krista@2461
   683
                        } 
edouard@1522
   684
                    }
krista@2461
   685
                    id_curr = id_curr->next;
edouard@1501
   686
                }
edouard@1501
   687
            }
krista@1220
   688
        }
krista@2461
   689
        
krista@2461
   690
        if (stored_ident) {
krista@2461
   691
            status = prepare_updated_identity(session,
krista@2461
   692
                                              identity,
krista@2461
   693
                                              stored_ident, true);
krista@2461
   694
        }
edouard@1501
   695
        else {
krista@2461
   696
            identity->user_id = calloc(1, strlen(identity->address) + 6);
krista@2461
   697
            if (!identity->user_id)
vb@2574
   698
                goto enomem;
edouard@1501
   699
krista@2461
   700
            snprintf(identity->user_id, strlen(identity->address) + 6,
krista@2461
   701
                     "TOFU_%s", identity->address);        
krista@2496
   702
krista@2537
   703
            status = get_identity(session, 
krista@2537
   704
                                  identity->address, 
krista@2537
   705
                                  identity->user_id, 
krista@2537
   706
                                  &stored_ident);
krista@2537
   707
krista@2537
   708
            if (status == PEP_STATUS_OK && stored_ident) {
krista@2537
   709
                status = prepare_updated_identity(session,
krista@2537
   710
                                                  identity,
krista@2537
   711
                                                  stored_ident, true);
krista@2537
   712
            }
krista@2537
   713
            else {
krista@2537
   714
                         
krista@2537
   715
                //    * We've already checked and retrieved
krista@2537
   716
                //      any applicable temporary identities above. If we're 
krista@2537
   717
                //      here, none of them fit.
krista@2537
   718
                
krista@2548
   719
                status = elect_pubkey(session, identity, false);
krista@2537
   720
                             
krista@2537
   721
                //    * call set_identity() to store
krista@2537
   722
                if (identity->fpr)
krista@2537
   723
                    status = get_key_rating(session, identity->fpr, &identity->comm_type);
krista@2496
   724
            
krista@2537
   725
                //    * call set_identity() to store
krista@2537
   726
                adjust_pep_trust_status(session, identity);            
krista@2537
   727
                status = set_identity(session, identity);
krista@2537
   728
            }
Edouard@499
   729
        }
vb@8
   730
    }
krista@2461
   731
    else {
krista@2461
   732
        /*
krista@2493
   733
        * Input: address (no others)
krista@2461
   734
         * Temporary identity information without username suplied
krista@2461
   735
         */
krista@2461
   736
         
krista@2461
   737
        //  * Again, see if there is an own identity that uses this address. If so, we'll
krista@2461
   738
        //    prefer that
krista@2461
   739
        stored_ident = NULL;
krista@2461
   740
         
krista@2461
   741
        if (default_own_id) {
krista@2461
   742
            status = get_identity(session, 
krista@2512
   743
                                  identity->address, 
krista@2461
   744
                                  default_own_id, 
krista@2461
   745
                                  &stored_ident);
krista@2461
   746
        }
krista@2461
   747
        // If there isn't an own identity, search for a non-temp stored ident
krista@2461
   748
        // with this address.                      
krista@2461
   749
        if (status == PEP_CANNOT_FIND_IDENTITY || !stored_ident) { 
krista@2461
   750
 
krista@2461
   751
            identity_list* id_list = NULL;
krista@2506
   752
            //    * Search for identity with this address
krista@2461
   753
            status = get_identities_by_address(session, identity->address, &id_list);
vb@8
   754
krista@2506
   755
            // Results are ordered by timestamp descending, so this covers
krista@2506
   756
            // both the one-result and multi-result cases
krista@2506
   757
            if (id_list) {
krista@2506
   758
                if (stored_ident) // unlikely
krista@2506
   759
                    free_identity(stored_ident);
krista@2461
   760
                stored_ident = id_list->ident;
krista@2461
   761
            }
krista@2461
   762
        }
krista@2461
   763
        if (stored_ident)
krista@2461
   764
            status = prepare_updated_identity(session, identity,
krista@2461
   765
                                              stored_ident, false);
krista@2496
   766
        else  {            
krista@2496
   767
            // too little info. BUT. We see if we can find a key; if so, we create a
krista@2496
   768
            // temp identity, look for a key, and store.
krista@2496
   769
                         
krista@2496
   770
            // create temporary identity, store it, and Return this
krista@2496
   771
            // This means TOFU_ user_id
krista@2496
   772
            identity->user_id = calloc(1, strlen(identity->address) + 6);
krista@2496
   773
            if (!identity->user_id)
vb@2574
   774
                goto enomem;
krista@2496
   775
krista@2496
   776
            snprintf(identity->user_id, strlen(identity->address) + 6,
krista@2496
   777
                     "TOFU_%s", identity->address);        
krista@2496
   778
        
krista@2496
   779
            identity->username = strdup(identity->address);
krista@2496
   780
            if (!identity->address)
vb@2574
   781
                goto enomem;
krista@2496
   782
            
krista@2496
   783
            free(identity->fpr);
krista@2496
   784
            identity->fpr = NULL;
krista@2496
   785
            identity->comm_type = PEP_ct_unknown;
krista@2496
   786
krista@2548
   787
            status = elect_pubkey(session, identity, false);
krista@2496
   788
                         
krista@2496
   789
            if (identity->fpr)
krista@2496
   790
                status = get_key_rating(session, identity->fpr, &identity->comm_type);
krista@2496
   791
        
krista@2519
   792
            //    * call set_identity() to store
krista@2519
   793
            adjust_pep_trust_status(session, identity);            
krista@2496
   794
            status = set_identity(session, identity);
krista@2496
   795
krista@2496
   796
        }
krista@2461
   797
    }
krista@2461
   798
    
krista@2461
   799
    // FIXME: This is legacy. I presume it's a notification for the caller...
krista@2461
   800
    // Revisit once I can talk to Volker
krista@2593
   801
    if (identity->comm_type != PEP_ct_compromised &&
krista@2461
   802
        identity->comm_type < PEP_ct_strong_but_unconfirmed)
vb@297
   803
        if (session->examine_identity)
krista@2461
   804
            session->examine_identity(identity, session->examine_management);
vb@297
   805
vb@2574
   806
    goto pep_free;
vb@2574
   807
vb@2574
   808
enomem:
vb@2574
   809
    status = PEP_OUT_OF_MEMORY;
vb@2574
   810
vb@2574
   811
pep_free:
vb@2574
   812
    free(default_own_id);
vb@2575
   813
    free_identity(stored_ident);
krista@2501
   814
    return status;
vb@0
   815
}
vb@0
   816
Edouard@774
   817
PEP_STATUS elect_ownkey(
krista@1194
   818
        PEP_SESSION session, pEp_identity * identity
Edouard@774
   819
    )
Edouard@774
   820
{
Edouard@774
   821
    PEP_STATUS status;
Edouard@774
   822
    stringlist_t *keylist = NULL;
Edouard@774
   823
Edouard@774
   824
    free(identity->fpr);
Edouard@774
   825
    identity->fpr = NULL;
Edouard@774
   826
krista@1357
   827
    status = find_private_keys(session, identity->address, &keylist);
Edouard@774
   828
    assert(status != PEP_OUT_OF_MEMORY);
Edouard@774
   829
    if (status == PEP_OUT_OF_MEMORY)
Edouard@774
   830
        return PEP_OUT_OF_MEMORY;
Edouard@774
   831
    
Edouard@774
   832
    if (keylist != NULL && keylist->value != NULL)
Edouard@774
   833
    {
Edouard@774
   834
        char *_fpr = NULL;
Edouard@774
   835
        identity->comm_type = PEP_ct_unknown;
Edouard@774
   836
Edouard@774
   837
        stringlist_t *_keylist;
Edouard@774
   838
        for (_keylist = keylist; _keylist && _keylist->value; _keylist = _keylist->next) {
Edouard@774
   839
            bool is_own = false;
Edouard@774
   840
            
edouard@1752
   841
            status = own_key_is_listed(session, _keylist->value, &is_own);
edouard@1752
   842
            assert(status == PEP_STATUS_OK);
edouard@1752
   843
            if (status != PEP_STATUS_OK) {
edouard@1752
   844
                free_stringlist(keylist);
edouard@1752
   845
                return status;
Edouard@774
   846
            }
Edouard@774
   847
            
edouard@1752
   848
            if (is_own)
Edouard@774
   849
            {
Edouard@774
   850
                PEP_comm_type _comm_type_key;
Edouard@774
   851
                
Edouard@774
   852
                status = get_key_rating(session, _keylist->value, &_comm_type_key);
Edouard@774
   853
                assert(status != PEP_OUT_OF_MEMORY);
Edouard@774
   854
                if (status == PEP_OUT_OF_MEMORY) {
Edouard@774
   855
                    free_stringlist(keylist);
Edouard@774
   856
                    return PEP_OUT_OF_MEMORY;
Edouard@774
   857
                }
Edouard@774
   858
                
krista@2593
   859
                if (_comm_type_key != PEP_ct_compromised &&
Edouard@774
   860
                    _comm_type_key != PEP_ct_unknown)
Edouard@774
   861
                {
Edouard@774
   862
                    if (identity->comm_type == PEP_ct_unknown ||
Edouard@774
   863
                        _comm_type_key > identity->comm_type)
Edouard@774
   864
                    {
Edouard@774
   865
                        identity->comm_type = _comm_type_key;
Edouard@774
   866
                        _fpr = _keylist->value;
Edouard@774
   867
                    }
Edouard@774
   868
                }
Edouard@774
   869
            }
Edouard@774
   870
        }
Edouard@774
   871
        
Edouard@774
   872
        if (_fpr)
Edouard@774
   873
        {
Edouard@774
   874
            identity->fpr = strdup(_fpr);
Edouard@774
   875
            assert(identity->fpr);
Edouard@774
   876
            if (identity->fpr == NULL)
Edouard@774
   877
            {
Edouard@774
   878
                free_stringlist(keylist);
Edouard@774
   879
                return PEP_OUT_OF_MEMORY;
Edouard@774
   880
            }
Edouard@774
   881
        }
Edouard@774
   882
        free_stringlist(keylist);
Edouard@774
   883
    }
Edouard@774
   884
    return PEP_STATUS_OK;
Edouard@774
   885
}
Edouard@774
   886
krista@1357
   887
PEP_STATUS _has_usable_priv_key(PEP_SESSION session, char* fpr,
krista@1357
   888
                                bool* is_usable) {
krista@1357
   889
    
krista@2549
   890
    bool has_private = false;
krista@2549
   891
    PEP_STATUS status = contains_priv_key(session, fpr, &has_private);
krista@1357
   892
    
krista@2549
   893
    *is_usable = has_private;
krista@1357
   894
    
krista@2501
   895
    return status;
krista@1357
   896
}
krista@1357
   897
edouard@1406
   898
PEP_STATUS _myself(PEP_SESSION session, pEp_identity * identity, bool do_keygen, bool ignore_flags)
vb@0
   899
{
krista@2461
   900
vb@0
   901
    PEP_STATUS status;
vb@0
   902
vb@0
   903
    assert(session);
vb@0
   904
    assert(identity);
vb@1044
   905
    assert(!EMPTYSTR(identity->address));
krista@2461
   906
    assert(!EMPTYSTR(identity->user_id));
vb@1043
   907
krista@2461
   908
    if (!session || !identity || EMPTYSTR(identity->address) ||
krista@2461
   909
        EMPTYSTR(identity->user_id))
krista@2501
   910
        return PEP_ILLEGAL_VALUE;
vb@191
   911
krista@2461
   912
    pEp_identity *stored_identity = NULL;
krista@2461
   913
    char* revoked_fpr = NULL; 
vb@2535
   914
    bool valid_key_found = false;
krista@2461
   915
        
krista@2461
   916
    char* default_own_id = NULL;
krista@2461
   917
    status = get_default_own_userid(session, &default_own_id);
krista@2461
   918
krista@2461
   919
    // Deal with non-default user_ids.
krista@2461
   920
    if (default_own_id && strcmp(default_own_id, identity->user_id) != 0) {
krista@2461
   921
        
krista@2461
   922
        status = set_userid_alias(session, default_own_id, identity->user_id);
krista@2461
   923
        // Do we want this to be fatal? For now, we'll do it...
krista@2461
   924
        if (status != PEP_STATUS_OK)
krista@2461
   925
            goto pep_free;
krista@2461
   926
            
krista@2461
   927
        free(identity->user_id);
krista@2461
   928
        identity->user_id = strdup(default_own_id);
krista@2461
   929
        if (identity->user_id == NULL) {
krista@2461
   930
            status = PEP_OUT_OF_MEMORY;
krista@2461
   931
            goto pep_free;
krista@2461
   932
        }
krista@2461
   933
    }
krista@2461
   934
krista@2461
   935
    // NOTE: IF WE DON'T YET HAVE AN OWN_ID, WE IGNORE REFERENCES TO THIS ADDRESS IN THE
krista@2461
   936
    // DB (WHICH MAY HAVE BEEN SET BEFORE MYSELF WAS CALLED BY RECEIVING AN EMAIL FROM
krista@2461
   937
    // THIS ADDRESS), AS IT IS NOT AN OWN_IDENTITY AND HAS NO INFORMATION WE NEED OR WHAT TO
krista@2461
   938
    // SET FOR MYSELF
krista@2461
   939
    
krista@2461
   940
    // Ok, so now, set up the own_identity:
vb@0
   941
    identity->comm_type = PEP_ct_pEp;
krista@2461
   942
    identity->me = true;
edouard@1406
   943
    if(ignore_flags)
edouard@1406
   944
        identity->flags = 0;
Edouard@658
   945
    
krista@2461
   946
    // Let's see if we have an identity record in the DB for 
krista@2461
   947
    // this user_id + address
krista@2501
   948
//    DEBUG_LOG("myself", "debug", identity->address);
vb@1044
   949
 
Edouard@560
   950
    status = get_identity(session,
Edouard@560
   951
                          identity->address,
Edouard@560
   952
                          identity->user_id,
Edouard@560
   953
                          &stored_identity);
krista@2461
   954
vb@0
   955
    assert(status != PEP_OUT_OF_MEMORY);
vb@2535
   956
    if (status == PEP_OUT_OF_MEMORY) {
vb@2535
   957
        status = PEP_OUT_OF_MEMORY;
vb@2535
   958
        goto pep_free;
vb@2535
   959
    }
krista@1357
   960
krista@2493
   961
    // Set usernames - priority is input username > stored name > address
krista@2461
   962
    // If there's an input username, we always patch the username with that
krista@2461
   963
    // input.
krista@2461
   964
    if (EMPTYSTR(identity->username)) {
krista@2494
   965
        bool stored_uname = (stored_identity && !EMPTYSTR(stored_identity->username));
krista@2493
   966
        char* uname = (stored_uname ? stored_identity->username : identity->address);
krista@2461
   967
        free(identity->username);
krista@2461
   968
        identity->username = strdup(uname);
vb@2535
   969
        if (identity->username == NULL) {
vb@2535
   970
            status = PEP_OUT_OF_MEMORY;
vb@2535
   971
            goto pep_free;
vb@2535
   972
        }
krista@2461
   973
    }
krista@2461
   974
vb@2535
   975
    // ignore input fpr
vb@2535
   976
vb@2535
   977
    if (identity->fpr) {
vb@2535
   978
        free(identity->fpr);
vb@2535
   979
        identity->fpr = NULL;
vb@2535
   980
    }
vb@2535
   981
vb@2535
   982
    // check stored identity
vb@2535
   983
    if (stored_identity && !EMPTYSTR(stored_identity->fpr)) {
krista@2461
   984
        // Fall back / retrieve
krista@2548
   985
        status = validate_fpr(session, stored_identity, false);
vb@2535
   986
        if (status == PEP_OUT_OF_MEMORY)
vb@2535
   987
            goto pep_free;
vb@2535
   988
        if (status == PEP_STATUS_OK) {
vb@2535
   989
            if (stored_identity->comm_type >= PEP_ct_strong_but_unconfirmed) {
vb@2535
   990
                identity->fpr = strdup(stored_identity->fpr);
vb@2535
   991
                assert(identity->fpr);
vb@2535
   992
                if (!identity->fpr) {
vb@2535
   993
                    status = PEP_OUT_OF_MEMORY;
vb@2535
   994
                    goto pep_free;
vb@2535
   995
                }
vb@2535
   996
                valid_key_found = true;            
vb@2535
   997
            }
vb@2535
   998
            else {
vb@2535
   999
                bool revoked = false;
krista@2461
  1000
                status = key_revoked(session, stored_identity->fpr, &revoked);
vb@2535
  1001
                if (status)
vb@2535
  1002
                    goto pep_free;
vb@2535
  1003
                if (revoked) {
krista@2461
  1004
                    revoked_fpr = strdup(stored_identity->fpr);
vb@2535
  1005
                    assert(revoked_fpr);
vb@2535
  1006
                    if (!revoked_fpr) {
vb@2535
  1007
                        status = PEP_OUT_OF_MEMORY;
vb@2535
  1008
                        goto pep_free;
vb@2535
  1009
                    }
vb@2535
  1010
                }
vb@2535
  1011
            }
krista@1357
  1012
        }
Edouard@560
  1013
    }
krista@1357
  1014
    
krista@2461
  1015
    // Nothing left to do but generate a key
krista@2461
  1016
    if (!valid_key_found) {
krista@2461
  1017
        if (!do_keygen)
krista@2461
  1018
            status = PEP_GET_KEY_FAILED;
krista@2461
  1019
        else {
krista@2501
  1020
// /            DEBUG_LOG("Generating key pair", "debug", identity->address);
vb@934
  1021
krista@2461
  1022
            free(identity->fpr);
krista@2461
  1023
            identity->fpr = NULL;
krista@2461
  1024
            status = generate_keypair(session, identity);
krista@2461
  1025
            assert(status != PEP_OUT_OF_MEMORY);
krista@1371
  1026
krista@2461
  1027
            if (status != PEP_STATUS_OK) {
krista@2461
  1028
                char buf[11];
krista@2461
  1029
                snprintf(buf, 11, "%d", status); // uh, this is kludgey. FIXME
krista@2501
  1030
//                DEBUG_LOG("Generating key pair failed", "debug", buf);
krista@2461
  1031
            }        
krista@2461
  1032
            else {
krista@2461
  1033
                valid_key_found = true;
krista@2461
  1034
                if (revoked_fpr) {
krista@2461
  1035
                    status = set_revoked(session, revoked_fpr,
krista@2461
  1036
                                         stored_identity->fpr, time(NULL));
krista@2461
  1037
                }
krista@2461
  1038
            }
krista@1357
  1039
        }
Edouard@560
  1040
    }
Edouard@695
  1041
krista@2461
  1042
    if (valid_key_found) {
krista@2461
  1043
        identity->comm_type = PEP_ct_pEp;
krista@2461
  1044
        status = PEP_STATUS_OK;
krista@2461
  1045
    }
krista@2461
  1046
    else {
krista@2461
  1047
        free(identity->fpr);
krista@2461
  1048
        identity->fpr = NULL;
krista@2461
  1049
        identity->comm_type = PEP_ct_unknown;
krista@2461
  1050
    }
krista@2461
  1051
    
krista@2461
  1052
    status = set_identity(session, identity);
krista@2504
  1053
    if (status == PEP_STATUS_OK)
krista@2504
  1054
        status = set_as_pep_user(session, identity);
Edouard@775
  1055
krista@2461
  1056
pep_free:    
krista@2461
  1057
    free(default_own_id);
krista@2461
  1058
    free(revoked_fpr);                     
krista@2461
  1059
    free_identity(stored_identity);
krista@2501
  1060
    return status;
krista@2461
  1061
}
krista@2461
  1062
vb@2535
  1063
// DYNAMIC_API PEP_STATUS initialise_own_identities(PEP_SESSION session,
vb@2535
  1064
//                                                  identity_list* my_idents) {
vb@2535
  1065
//     PEP_STATUS status = PEP_STATUS_OK;
vb@2535
  1066
//     if (!session)
vb@2535
  1067
//         return PEP_ILLEGAL_VALUE;
vb@2535
  1068
//         
vb@2535
  1069
//     if (!my_idents)
vb@2535
  1070
//         return PEP_STATUS_OK;
vb@2535
  1071
//             
vb@2535
  1072
//     identity_list* ident_curr = my_idents;
vb@2535
  1073
//     while (ident_curr) {
vb@2535
  1074
//         pEp_identity* ident = ident_curr->ident;
vb@2535
  1075
//         if (!ident || !ident->address) {
vb@2535
  1076
//             status = PEP_ILLEGAL_VALUE;
vb@2535
  1077
//             goto pep_error;
vb@2535
  1078
//         }
vb@2535
  1079
// 
vb@2535
  1080
//         status = _myself(session, ident, false, false);
vb@2535
  1081
//         
vb@2535
  1082
//         ident_curr = ident_curr->next;
vb@2535
  1083
//     }
vb@2535
  1084
//     
vb@2535
  1085
// pep_error:
vb@2535
  1086
//     return status;
vb@2535
  1087
// }
vb@0
  1088
edouard@1385
  1089
DYNAMIC_API PEP_STATUS myself(PEP_SESSION session, pEp_identity * identity)
edouard@1385
  1090
{
krista@2501
  1091
    return _myself(session, identity, true, false);
edouard@1385
  1092
}
edouard@1385
  1093
vb@296
  1094
DYNAMIC_API PEP_STATUS register_examine_function(
vb@292
  1095
        PEP_SESSION session, 
vb@292
  1096
        examine_identity_t examine_identity,
vb@292
  1097
        void *management
vb@292
  1098
    )
vb@292
  1099
{
vb@292
  1100
    assert(session);
vb@292
  1101
    if (!session)
vb@292
  1102
        return PEP_ILLEGAL_VALUE;
vb@292
  1103
vb@292
  1104
    session->examine_management = management;
vb@292
  1105
    session->examine_identity = examine_identity;
vb@292
  1106
vb@292
  1107
    return PEP_STATUS_OK;
vb@292
  1108
}
vb@292
  1109
vb@0
  1110
DYNAMIC_API PEP_STATUS do_keymanagement(
vb@0
  1111
        retrieve_next_identity_t retrieve_next_identity,
vb@0
  1112
        void *management
vb@0
  1113
    )
vb@0
  1114
{
vb@0
  1115
    PEP_SESSION session;
vb@0
  1116
    pEp_identity *identity;
Edouard@499
  1117
    PEP_STATUS status;
vb@0
  1118
Edouard@499
  1119
    assert(retrieve_next_identity);
Edouard@499
  1120
    assert(management);
Edouard@499
  1121
Edouard@499
  1122
    if (!retrieve_next_identity || !management)
Edouard@499
  1123
        return PEP_ILLEGAL_VALUE;
Edouard@499
  1124
Edouard@499
  1125
    status = init(&session);
vb@0
  1126
    assert(status == PEP_STATUS_OK);
vb@0
  1127
    if (status != PEP_STATUS_OK)
vb@0
  1128
        return status;
vb@0
  1129
vb@0
  1130
    log_event(session, "keymanagement thread started", "pEp engine", NULL, NULL);
vb@0
  1131
Edouard@499
  1132
    while ((identity = retrieve_next_identity(management))) 
Edouard@499
  1133
    {
vb@0
  1134
        assert(identity->address);
Edouard@499
  1135
        if(identity->address)
Edouard@499
  1136
        {
Edouard@499
  1137
            DEBUG_LOG("do_keymanagement", "retrieve_next_identity", identity->address);
Edouard@499
  1138
krista@2461
  1139
            if (identity->me) {
Edouard@499
  1140
                status = myself(session, identity);
Edouard@499
  1141
            } else {
Edouard@499
  1142
                status = recv_key(session, identity->address);
Edouard@499
  1143
            }
Edouard@499
  1144
vb@0
  1145
            assert(status != PEP_OUT_OF_MEMORY);
Edouard@499
  1146
            if(status == PEP_OUT_OF_MEMORY)
Edouard@499
  1147
                return PEP_OUT_OF_MEMORY;
vb@0
  1148
        }
vb@0
  1149
        free_identity(identity);
vb@0
  1150
    }
vb@0
  1151
vb@0
  1152
    log_event(session, "keymanagement thread shutdown", "pEp engine", NULL, NULL);
vb@0
  1153
vb@0
  1154
    release(session);
vb@0
  1155
    return PEP_STATUS_OK;
vb@0
  1156
}
vb@0
  1157
krista@1213
  1158
DYNAMIC_API PEP_STATUS key_mistrusted(
vb@357
  1159
        PEP_SESSION session,
vb@357
  1160
        pEp_identity *ident
vb@357
  1161
    )
vb@215
  1162
{
vb@218
  1163
    PEP_STATUS status = PEP_STATUS_OK;
vb@218
  1164
vb@215
  1165
    assert(session);
vb@357
  1166
    assert(ident);
Edouard@439
  1167
    assert(!EMPTYSTR(ident->fpr));
vb@215
  1168
vb@357
  1169
    if (!(session && ident && ident->fpr))
vb@215
  1170
        return PEP_ILLEGAL_VALUE;
vb@215
  1171
krista@2461
  1172
    if (ident->me)
Edouard@697
  1173
    {
vb@357
  1174
        revoke_key(session, ident->fpr, NULL);
Edouard@697
  1175
        myself(session, ident);
Edouard@697
  1176
    }
Edouard@697
  1177
    else
Edouard@697
  1178
    {
krista@2129
  1179
        // for undo
krista@2129
  1180
        if (session->cached_mistrusted)
krista@2129
  1181
            free(session->cached_mistrusted);
krista@2129
  1182
        session->cached_mistrusted = identity_dup(ident);
krista@2461
  1183
        
krista@2461
  1184
        // set mistrust for this user_id/keypair (even if there's not an
krista@2461
  1185
        // identity set yet, this is important, as we need to record the mistrust
krista@2461
  1186
        // action)
krista@2478
  1187
        
krista@2483
  1188
        // double-check to be sure key is even in the DB
krista@2483
  1189
        if (ident->fpr)
krista@2483
  1190
            status = set_pgp_keypair(session, ident->fpr);
krista@2483
  1191
krista@2478
  1192
        // We set this temporarily but will grab it back from the cache afterwards
krista@2478
  1193
        ident->comm_type = PEP_ct_mistrusted;
krista@2478
  1194
        status = set_trust(session, ident);
krista@2478
  1195
        ident->comm_type = session->cached_mistrusted->comm_type;
krista@2478
  1196
        
krista@2461
  1197
        if (status == PEP_STATUS_OK)
krista@2461
  1198
            // cascade that mistrust for anyone using this key
krista@2593
  1199
            status = mark_as_compromised(session, ident->fpr);
krista@2461
  1200
        if (status == PEP_STATUS_OK)
krista@2461
  1201
            status = remove_fpr_as_default(session, ident->fpr);
krista@2471
  1202
        if (status == PEP_STATUS_OK)
krista@2471
  1203
            status = add_mistrusted_key(session, ident->fpr);
Edouard@697
  1204
    }
vb@218
  1205
vb@218
  1206
    return status;
vb@215
  1207
}
vb@215
  1208
krista@2129
  1209
DYNAMIC_API PEP_STATUS undo_last_mistrust(PEP_SESSION session) {
krista@2129
  1210
    assert(session);
krista@2129
  1211
    
krista@2129
  1212
    if (!session)
krista@2129
  1213
        return PEP_ILLEGAL_VALUE;
krista@2129
  1214
    
krista@2129
  1215
    PEP_STATUS status = PEP_STATUS_OK;
krista@2129
  1216
        
krista@2129
  1217
    pEp_identity* cached_ident = session->cached_mistrusted;
krista@2129
  1218
    
krista@2129
  1219
    if (!cached_ident)
krista@2129
  1220
        status = PEP_CANNOT_FIND_IDENTITY;
krista@2129
  1221
    else {
krista@2471
  1222
        status = delete_mistrusted_key(session, cached_ident->fpr);
krista@2471
  1223
        if (status == PEP_STATUS_OK) {
krista@2504
  1224
            status = set_identity(session, cached_ident);
krista@2504
  1225
            // THIS SHOULDN'T BE NECESSARY - PREVIOUS VALUE WAS IN THE DB
krista@2504
  1226
            // if (status == PEP_STATUS_OK) {
krista@2504
  1227
            //     if ((cached_ident->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)
krista@2504
  1228
            //         status = set_as_pep_user(session, cached_ident);
krista@2504
  1229
            // }            
krista@2471
  1230
            free_identity(session->cached_mistrusted);
krista@2471
  1231
        }
krista@2129
  1232
    }
krista@2129
  1233
    
krista@2129
  1234
    session->cached_mistrusted = NULL;
krista@2471
  1235
    
krista@2129
  1236
    return status;
krista@2129
  1237
}
krista@2129
  1238
Edouard@410
  1239
DYNAMIC_API PEP_STATUS key_reset_trust(
Edouard@410
  1240
        PEP_SESSION session,
Edouard@410
  1241
        pEp_identity *ident
Edouard@410
  1242
    )
Edouard@410
  1243
{
Edouard@410
  1244
    PEP_STATUS status = PEP_STATUS_OK;
Edouard@410
  1245
Edouard@410
  1246
    assert(session);
Edouard@410
  1247
    assert(ident);
Edouard@439
  1248
    assert(!EMPTYSTR(ident->fpr));
Edouard@439
  1249
    assert(!EMPTYSTR(ident->address));
Edouard@439
  1250
    assert(!EMPTYSTR(ident->user_id));
Edouard@410
  1251
krista@2461
  1252
    if (!(session && ident && ident->fpr && ident->fpr[0] != '\0' && ident->address &&
vb@420
  1253
            ident->user_id))
Edouard@410
  1254
        return PEP_ILLEGAL_VALUE;
Edouard@410
  1255
krista@2461
  1256
    // we do not change the input struct at ALL.
krista@2461
  1257
    pEp_identity* input_copy = identity_dup(ident);
krista@2461
  1258
    
krista@2461
  1259
    pEp_identity* tmp_ident = NULL;
krista@2461
  1260
    
krista@2461
  1261
    status = get_trust(session, input_copy);
krista@2461
  1262
    
vb@420
  1263
    if (status != PEP_STATUS_OK)
krista@2461
  1264
        goto pep_free;
krista@2461
  1265
        
krista@2461
  1266
    PEP_comm_type new_trust = PEP_ct_unknown;
krista@2586
  1267
    status = get_key_rating(session, ident->fpr, &new_trust);
krista@2586
  1268
    if (status != PEP_STATUS_OK)
krista@2586
  1269
        goto pep_free;
Edouard@410
  1270
krista@2586
  1271
    bool pep_user = false;
krista@2586
  1272
    
krista@2586
  1273
    status = is_pep_user(session, ident, &pep_user);
krista@2586
  1274
    
krista@2586
  1275
    if (pep_user && new_trust >= PEP_ct_unconfirmed_encryption)
krista@2586
  1276
        input_copy->comm_type = PEP_ct_pEp_unconfirmed;
krista@2586
  1277
    else
krista@2586
  1278
        input_copy->comm_type = new_trust;
krista@2586
  1279
        
krista@2478
  1280
    status = set_trust(session, input_copy);
krista@2461
  1281
    
vb@421
  1282
    if (status != PEP_STATUS_OK)
krista@2461
  1283
        goto pep_free;
vb@421
  1284
krista@2471
  1285
    bool mistrusted_key = false;
krista@2461
  1286
        
krista@2471
  1287
    status = is_mistrusted_key(session, ident->fpr, &mistrusted_key);
krista@2471
  1288
krista@2471
  1289
    if (status != PEP_STATUS_OK)
krista@2471
  1290
        goto pep_free;
krista@2471
  1291
    
krista@2471
  1292
    if (mistrusted_key)
krista@2471
  1293
        status = delete_mistrusted_key(session, ident->fpr);
krista@2471
  1294
krista@2471
  1295
    if (status != PEP_STATUS_OK)
krista@2471
  1296
        goto pep_free;
krista@2461
  1297
        
krista@2461
  1298
    tmp_ident = new_identity(ident->address, NULL, ident->user_id, NULL);
krista@2461
  1299
krista@2461
  1300
    if (!tmp_ident)
krista@2461
  1301
        return PEP_OUT_OF_MEMORY;
krista@2461
  1302
    
krista@2595
  1303
    if (is_me(session, tmp_ident))
krista@2595
  1304
        status = myself(session, tmp_ident);
krista@2595
  1305
    else
krista@2595
  1306
        status = update_identity(session, tmp_ident);
krista@2461
  1307
    
krista@2461
  1308
    if (status != PEP_STATUS_OK)
krista@2461
  1309
        goto pep_free;
krista@2461
  1310
    
krista@2461
  1311
    // remove as default if necessary
krista@2507
  1312
    if (!EMPTYSTR(tmp_ident->fpr) && strcmp(tmp_ident->fpr, ident->fpr) == 0) {
krista@2461
  1313
        free(tmp_ident->fpr);
krista@2461
  1314
        tmp_ident->fpr = NULL;
krista@2461
  1315
        tmp_ident->comm_type = PEP_ct_unknown;
krista@2461
  1316
        status = set_identity(session, tmp_ident);
krista@2461
  1317
        if (status != PEP_STATUS_OK)
krista@2461
  1318
            goto pep_free;
krista@2461
  1319
    }
krista@2461
  1320
    
krista@2461
  1321
    char* user_default = NULL;
krista@2586
  1322
    get_main_user_fpr(session, tmp_ident->user_id, &user_default);
krista@2461
  1323
    
krista@2461
  1324
    if (!EMPTYSTR(user_default)) {
krista@2461
  1325
        if (strcmp(user_default, ident->fpr) == 0)
krista@2461
  1326
            status = refresh_userid_default_key(session, ident->user_id);
krista@2461
  1327
        if (status != PEP_STATUS_OK)
krista@2461
  1328
            goto pep_free;    
krista@2461
  1329
    }
krista@2461
  1330
            
krista@2461
  1331
pep_free:
krista@2461
  1332
    free_identity(tmp_ident);
krista@2461
  1333
    free_identity(input_copy);
Edouard@410
  1334
    return status;
Edouard@410
  1335
}
Edouard@410
  1336
vb@354
  1337
DYNAMIC_API PEP_STATUS trust_personal_key(
vb@354
  1338
        PEP_SESSION session,
vb@354
  1339
        pEp_identity *ident
vb@354
  1340
    )
vb@354
  1341
{
vb@354
  1342
    PEP_STATUS status = PEP_STATUS_OK;
vb@354
  1343
vb@354
  1344
    assert(session);
vb@354
  1345
    assert(ident);
Edouard@439
  1346
    assert(!EMPTYSTR(ident->address));
Edouard@439
  1347
    assert(!EMPTYSTR(ident->user_id));
Edouard@439
  1348
    assert(!EMPTYSTR(ident->fpr));
vb@354
  1349
Edouard@439
  1350
    if (!ident || EMPTYSTR(ident->address) || EMPTYSTR(ident->user_id) ||
edouard@1945
  1351
            EMPTYSTR(ident->fpr))
vb@354
  1352
        return PEP_ILLEGAL_VALUE;
vb@354
  1353
krista@2461
  1354
    //bool ident_has_trusted_default = false;
krista@2461
  1355
    char* ident_default_fpr = NULL;
vb@354
  1356
krista@2461
  1357
    // Before we do anything, be sure the input fpr is even eligible to be trusted
krista@2461
  1358
    PEP_comm_type input_default_ct = PEP_ct_unknown;
krista@2461
  1359
    status = get_key_rating(session, ident->fpr, &input_default_ct);
krista@2461
  1360
    if (input_default_ct < PEP_ct_strong_but_unconfirmed)
krista@2461
  1361
        return PEP_KEY_UNSUITABLE;
krista@2461
  1362
krista@2477
  1363
    status = set_pgp_keypair(session, ident->fpr);
krista@2477
  1364
    if (status != PEP_STATUS_OK)
krista@2477
  1365
        return status;
krista@2461
  1366
krista@2461
  1367
    bool me = is_me(session, ident);
krista@2461
  1368
krista@2494
  1369
    pEp_identity* ident_copy = identity_dup(ident);
krista@2494
  1370
    char* cached_fpr = NULL;
krista@2494
  1371
krista@2494
  1372
    // for setting up a temp trusted identity for the input fpr
krista@2494
  1373
    pEp_identity* tmp_id = NULL;
krista@2494
  1374
roker@2497
  1375
    // For later, in case we need to check the user default key
roker@2497
  1376
    pEp_identity* tmp_user_ident = NULL;
roker@2497
  1377
krista@2494
  1378
    if (me) {
krista@2552
  1379
        bool has_private = false;
krista@2552
  1380
        // first of all, does this key even have a private component.
krista@2552
  1381
        status = contains_priv_key(session, ident->fpr, &has_private);
krista@2552
  1382
        if (status != PEP_STATUS_OK && status != PEP_KEY_NOT_FOUND)
krista@2552
  1383
            goto pep_free;
krista@2552
  1384
            
krista@2552
  1385
        if (has_private) {
krista@2552
  1386
            status = set_own_key(session, ident_copy, ident->fpr); 
krista@2552
  1387
            goto pep_free;
krista@2552
  1388
        }
krista@2494
  1389
    }
krista@2494
  1390
    
krista@2552
  1391
    // Either it's not me, or it's me but the key has no private key. 
krista@2552
  1392
    // We're only talking about pub keys here. Moving on.
krista@2552
  1393
    
krista@2522
  1394
    // Save the input fpr, which we already tested as non-NULL
krista@2494
  1395
    cached_fpr = strdup(ident->fpr);
krista@2461
  1396
krista@2552
  1397
    // Set up a temp trusted identity for the input fpr without a comm type;
krista@2494
  1398
    tmp_id = new_identity(ident->address, ident->fpr, ident->user_id, NULL);
krista@2552
  1399
    
krista@2552
  1400
    // ->me isn't set, even if this is an own identity, so this will work.
krista@2548
  1401
    status = validate_fpr(session, tmp_id, false);
krista@2461
  1402
        
krista@2461
  1403
    if (status == PEP_STATUS_OK) {
krista@2461
  1404
        // Validate fpr gets trust DB or, when that fails, key comm type. we checked
krista@2461
  1405
        // above that the key was ok. (not revoked or expired), but we want the max.
krista@2461
  1406
        tmp_id->comm_type = _MAX(tmp_id->comm_type, input_default_ct) | PEP_ct_confirmed;
krista@2552
  1407
krista@2552
  1408
        // Get the default identity without setting the fpr                                       
krista@2552
  1409
        if (me)
krista@2552
  1410
            status = _myself(session, ident_copy, false, true);
krista@2552
  1411
        else    
krista@2552
  1412
            status = update_identity(session, ident_copy);
krista@2552
  1413
            
krista@2522
  1414
        ident_default_fpr = (EMPTYSTR(ident_copy->fpr) ? NULL : strdup(ident_copy->fpr));
krista@2461
  1415
krista@2461
  1416
        if (status == PEP_STATUS_OK) {
krista@2461
  1417
            bool trusted_default = false;
krista@2461
  1418
krista@2461
  1419
            // If there's no default, or the default is different from the input...
krista@2552
  1420
            if (me || EMPTYSTR(ident_default_fpr) || strcmp(cached_fpr, ident_default_fpr) != 0) {
krista@2461
  1421
                
krista@2461
  1422
                // If the default fpr (if there is one) is trusted and key is strong enough,
krista@2461
  1423
                // don't replace, we just set the trusted bit on this key for this user_id...
krista@2461
  1424
                // (If there's no default fpr, this won't be true anyway.)
krista@2552
  1425
                if (me || (ident_copy->comm_type >= PEP_ct_strong_but_unconfirmed && 
krista@2552
  1426
                          (ident_copy->comm_type & PEP_ct_confirmed))) {                        
krista@2461
  1427
krista@2461
  1428
                    trusted_default = true;
krista@2461
  1429
                                    
krista@2478
  1430
                    status = set_trust(session, tmp_id);
krista@2461
  1431
                    input_default_ct = tmp_id->comm_type;                    
krista@2461
  1432
                }
krista@2461
  1433
                else {
krista@2494
  1434
                    free(ident_copy->fpr);
krista@2494
  1435
                    ident_copy->fpr = strdup(cached_fpr);
krista@2494
  1436
                    ident_copy->comm_type = tmp_id->comm_type;
krista@2504
  1437
                    status = set_identity(session, ident_copy); // replace identity default
krista@2504
  1438
                    if (status == PEP_STATUS_OK) {
krista@2504
  1439
                        if ((ident_copy->comm_type | PEP_ct_confirmed) == PEP_ct_pEp)
krista@2504
  1440
                            status = set_as_pep_user(session, ident_copy);
krista@2504
  1441
                    }            
krista@2461
  1442
                }
krista@2461
  1443
            }
krista@2461
  1444
            else { // we're setting this on the default fpr
krista@2461
  1445
                ident->comm_type = tmp_id->comm_type;
krista@2461
  1446
                status = set_identity(session, ident);
krista@2461
  1447
                trusted_default = true;
krista@2461
  1448
            }
krista@2461
  1449
            if (status == PEP_STATUS_OK && !trusted_default) {
krista@2461
  1450
                // Ok, there wasn't a trusted default, so we replaced. Thus, we also
krista@2461
  1451
                // make sure there's a trusted default on the user_id. If there
krista@2461
  1452
                // is not, we make this the default.
krista@2461
  1453
                char* user_default = NULL;
krista@2461
  1454
                status = get_main_user_fpr(session, ident->user_id, &user_default);
krista@2461
  1455
            
krista@2461
  1456
                if (status == PEP_STATUS_OK && user_default) {
krista@2494
  1457
                    tmp_user_ident = new_identity(ident->address, 
krista@2494
  1458
                                                  user_default, 
krista@2494
  1459
                                                  ident->user_id, 
krista@2494
  1460
                                                  NULL);
krista@2461
  1461
                    if (!tmp_user_ident)
krista@2461
  1462
                        status = PEP_OUT_OF_MEMORY;
krista@2461
  1463
                    else {
krista@2548
  1464
                        status = validate_fpr(session, tmp_user_ident, false);
krista@2461
  1465
                        
krista@2461
  1466
                        if (status != PEP_STATUS_OK ||
krista@2461
  1467
                            tmp_user_ident->comm_type < PEP_ct_strong_but_unconfirmed ||
krista@2461
  1468
                            !(tmp_user_ident->comm_type & PEP_ct_confirmed)) 
krista@2461
  1469
                        {
krista@2461
  1470
                            char* trusted_fpr = (trusted_default ? ident_default_fpr : cached_fpr);
krista@2461
  1471
                            status = replace_main_user_fpr(session, ident->user_id, trusted_fpr);
krista@2461
  1472
                        } 
krista@2461
  1473
                    }
krista@2461
  1474
                }
krista@2461
  1475
            }
krista@2461
  1476
        }
krista@2461
  1477
    }    
vb@354
  1478
krista@2494
  1479
pep_free:
krista@2494
  1480
    free(ident_default_fpr);
krista@2494
  1481
    free(cached_fpr);
krista@2494
  1482
    free_identity(tmp_id);
krista@2494
  1483
    free_identity(ident_copy);
krista@2494
  1484
    free_identity(tmp_user_ident);
vb@354
  1485
    return status;
vb@354
  1486
}
vb@354
  1487
Edouard@584
  1488
DYNAMIC_API PEP_STATUS own_key_is_listed(
vb@955
  1489
        PEP_SESSION session,
vb@955
  1490
        const char *fpr,
vb@955
  1491
        bool *listed
vb@955
  1492
    )
Edouard@584
  1493
{
Edouard@584
  1494
    PEP_STATUS status = PEP_STATUS_OK;
Edouard@584
  1495
    int count;
Edouard@584
  1496
    
Edouard@584
  1497
    assert(session && fpr && fpr[0] && listed);
Edouard@584
  1498
    
Edouard@584
  1499
    if (!(session && fpr && fpr[0] && listed))
Edouard@584
  1500
        return PEP_ILLEGAL_VALUE;
Edouard@584
  1501
    
Edouard@584
  1502
    *listed = false;
Edouard@584
  1503
    
Edouard@584
  1504
    sqlite3_reset(session->own_key_is_listed);
Edouard@584
  1505
    sqlite3_bind_text(session->own_key_is_listed, 1, fpr, -1, SQLITE_STATIC);
Edouard@584
  1506
    
Edouard@584
  1507
    int result;
Edouard@584
  1508
    
Edouard@584
  1509
    result = sqlite3_step(session->own_key_is_listed);
Edouard@584
  1510
    switch (result) {
Edouard@584
  1511
        case SQLITE_ROW:
Edouard@584
  1512
            count = sqlite3_column_int(session->own_key_is_listed, 0);
Edouard@584
  1513
            *listed = count > 0;
krista@2461
  1514
            status = PEP_STATUS_OK;
Edouard@584
  1515
            break;
Edouard@584
  1516
            
Edouard@584
  1517
        default:
Edouard@584
  1518
            status = PEP_UNKNOWN_ERROR;
Edouard@584
  1519
    }
Edouard@584
  1520
    
Edouard@584
  1521
    sqlite3_reset(session->own_key_is_listed);
Edouard@584
  1522
    return status;
Edouard@584
  1523
}
Edouard@584
  1524
edouard@1412
  1525
PEP_STATUS _own_identities_retrieve(
vb@955
  1526
        PEP_SESSION session,
edouard@1412
  1527
        identity_list **own_identities,
edouard@1412
  1528
        identity_flags_t excluded_flags
vb@955
  1529
      )
Edouard@584
  1530
{
Edouard@584
  1531
    PEP_STATUS status = PEP_STATUS_OK;
Edouard@584
  1532
    
vb@955
  1533
    assert(session && own_identities);
vb@955
  1534
    if (!(session && own_identities))
Edouard@584
  1535
        return PEP_ILLEGAL_VALUE;
Edouard@584
  1536
    
vb@955
  1537
    *own_identities = NULL;
vb@955
  1538
    identity_list *_own_identities = new_identity_list(NULL);
vb@955
  1539
    if (_own_identities == NULL)
Edouard@584
  1540
        goto enomem;
Edouard@584
  1541
    
vb@955
  1542
    sqlite3_reset(session->own_identities_retrieve);
Edouard@584
  1543
    
Edouard@584
  1544
    int result;
vb@955
  1545
    // address, fpr, username, user_id, comm_type, lang, flags
vb@955
  1546
    const char *address = NULL;
Edouard@584
  1547
    const char *fpr = NULL;
vb@955
  1548
    const char *username = NULL;
vb@955
  1549
    const char *user_id = NULL;
vb@955
  1550
    PEP_comm_type comm_type = PEP_ct_unknown;
vb@955
  1551
    const char *lang = NULL;
vb@955
  1552
    unsigned int flags = 0;
Edouard@584
  1553
    
vb@955
  1554
    identity_list *_bl = _own_identities;
Edouard@584
  1555
    do {
edouard@1412
  1556
        sqlite3_bind_int(session->own_identities_retrieve, 1, excluded_flags);
vb@955
  1557
        result = sqlite3_step(session->own_identities_retrieve);
Edouard@584
  1558
        switch (result) {
Edouard@584
  1559
            case SQLITE_ROW:
vb@955
  1560
                address = (const char *)
vb@955
  1561
                    sqlite3_column_text(session->own_identities_retrieve, 0);
vb@955
  1562
                fpr = (const char *)
vb@955
  1563
                    sqlite3_column_text(session->own_identities_retrieve, 1);
krista@2461
  1564
                user_id = (const char *)
krista@2461
  1565
                    sqlite3_column_text(session->own_identities_retrieve, 2);
vb@1071
  1566
                username = (const char *)
krista@2461
  1567
                    sqlite3_column_text(session->own_identities_retrieve, 3);
vb@1071
  1568
                comm_type = PEP_ct_pEp;
vb@1071
  1569
                lang = (const char *)
krista@2461
  1570
                    sqlite3_column_text(session->own_identities_retrieve, 4);
vb@1071
  1571
                flags = (unsigned int)
krista@2461
  1572
                    sqlite3_column_int(session->own_identities_retrieve, 5);
vb@955
  1573
vb@1078
  1574
                pEp_identity *ident = new_identity(address, fpr, user_id, username);
vb@1079
  1575
                if (!ident)
Edouard@584
  1576
                    goto enomem;
vb@955
  1577
                ident->comm_type = comm_type;
vb@955
  1578
                if (lang && lang[0]) {
vb@955
  1579
                    ident->lang[0] = lang[0];
vb@955
  1580
                    ident->lang[1] = lang[1];
vb@1078
  1581
                    ident->lang[2] = 0;
vb@955
  1582
                }
krista@2461
  1583
                ident->me = true;
vb@955
  1584
                ident->flags = flags;
vb@955
  1585
vb@955
  1586
                _bl = identity_list_add(_bl, ident);
vb@1080
  1587
                if (_bl == NULL) {
vb@1080
  1588
                    free_identity(ident);
vb@983
  1589
                    goto enomem;
vb@1080
  1590
                }
Edouard@584
  1591
                
Edouard@584
  1592
                break;
Edouard@584
  1593
                
Edouard@584
  1594
            case SQLITE_DONE:
Edouard@584
  1595
                break;
Edouard@584
  1596
                
Edouard@584
  1597
            default:
Edouard@584
  1598
                status = PEP_UNKNOWN_ERROR;
Edouard@584
  1599
                result = SQLITE_DONE;
Edouard@584
  1600
        }
Edouard@584
  1601
    } while (result != SQLITE_DONE);
Edouard@584
  1602
    
vb@955
  1603
    sqlite3_reset(session->own_identities_retrieve);
Edouard@584
  1604
    if (status == PEP_STATUS_OK)
vb@955
  1605
        *own_identities = _own_identities;
Edouard@584
  1606
    else
vb@955
  1607
        free_identity_list(_own_identities);
Edouard@584
  1608
    
Edouard@584
  1609
    goto the_end;
Edouard@584
  1610
    
Edouard@584
  1611
enomem:
vb@955
  1612
    free_identity_list(_own_identities);
Edouard@584
  1613
    status = PEP_OUT_OF_MEMORY;
Edouard@584
  1614
    
Edouard@584
  1615
the_end:
Edouard@584
  1616
    return status;
Edouard@584
  1617
}
vb@955
  1618
edouard@1412
  1619
DYNAMIC_API PEP_STATUS own_identities_retrieve(
edouard@1364
  1620
        PEP_SESSION session,
edouard@1412
  1621
        identity_list **own_identities
edouard@1412
  1622
      )
edouard@1412
  1623
{
edouard@1412
  1624
    return _own_identities_retrieve(session, own_identities, 0);
edouard@1412
  1625
}
edouard@1412
  1626
edouard@1412
  1627
PEP_STATUS _own_keys_retrieve(
edouard@1412
  1628
        PEP_SESSION session,
edouard@1412
  1629
        stringlist_t **keylist,
edouard@1412
  1630
        identity_flags_t excluded_flags
edouard@1364
  1631
      )
edouard@1364
  1632
{
edouard@1364
  1633
    PEP_STATUS status = PEP_STATUS_OK;
edouard@1364
  1634
    
edouard@1364
  1635
    assert(session && keylist);
edouard@1364
  1636
    if (!(session && keylist))
edouard@1364
  1637
        return PEP_ILLEGAL_VALUE;
edouard@1364
  1638
    
edouard@1364
  1639
    *keylist = NULL;
edouard@1364
  1640
    stringlist_t *_keylist = NULL;
edouard@1364
  1641
    
edouard@1394
  1642
    sqlite3_reset(session->own_keys_retrieve);
edouard@1364
  1643
    
edouard@1364
  1644
    int result;
edouard@1364
  1645
    char *fpr = NULL;
edouard@1364
  1646
    
edouard@1364
  1647
    stringlist_t *_bl = _keylist;
edouard@1364
  1648
    do {
edouard@1412
  1649
        sqlite3_bind_int(session->own_keys_retrieve, 1, excluded_flags);
edouard@1394
  1650
        result = sqlite3_step(session->own_keys_retrieve);
edouard@1364
  1651
        switch (result) {
edouard@1364
  1652
            case SQLITE_ROW:
edouard@1394
  1653
                fpr = strdup((const char *) sqlite3_column_text(session->own_keys_retrieve, 0));
edouard@1364
  1654
                if(fpr == NULL)
edouard@1364
  1655
                    goto enomem;
edouard@1364
  1656
edouard@1364
  1657
                _bl = stringlist_add(_bl, fpr);
edouard@1364
  1658
                if (_bl == NULL) {
edouard@1364
  1659
                    free(fpr);
edouard@1364
  1660
                    goto enomem;
edouard@1364
  1661
                }
edouard@1364
  1662
                if (_keylist == NULL)
edouard@1364
  1663
                    _keylist = _bl;
edouard@1364
  1664
                
edouard@1364
  1665
                break;
edouard@1364
  1666
                
edouard@1364
  1667
            case SQLITE_DONE:
edouard@1364
  1668
                break;
edouard@1364
  1669
                
edouard@1364
  1670
            default:
edouard@1364
  1671
                status = PEP_UNKNOWN_ERROR;
edouard@1364
  1672
                result = SQLITE_DONE;
edouard@1364
  1673
        }
edouard@1364
  1674
    } while (result != SQLITE_DONE);
edouard@1364
  1675
    
edouard@1394
  1676
    sqlite3_reset(session->own_keys_retrieve);
edouard@1364
  1677
    if (status == PEP_STATUS_OK)
edouard@1364
  1678
        *keylist = _keylist;
edouard@1364
  1679
    else
edouard@1364
  1680
        free_stringlist(_keylist);
edouard@1364
  1681
    
edouard@1364
  1682
    goto the_end;
edouard@1364
  1683
    
edouard@1364
  1684
enomem:
edouard@1364
  1685
    free_stringlist(_keylist);
edouard@1364
  1686
    status = PEP_OUT_OF_MEMORY;
edouard@1364
  1687
    
edouard@1364
  1688
the_end:
edouard@1364
  1689
    return status;
edouard@1364
  1690
}
edouard@1364
  1691
edouard@1412
  1692
DYNAMIC_API PEP_STATUS own_keys_retrieve(PEP_SESSION session, stringlist_t **keylist)
edouard@1412
  1693
{
edouard@1412
  1694
    return _own_keys_retrieve(session, keylist, 0);
edouard@1412
  1695
}
edouard@1412
  1696
edouard@1394
  1697
DYNAMIC_API PEP_STATUS set_own_key(
edouard@1394
  1698
       PEP_SESSION session,
vb@2535
  1699
       pEp_identity *me,
edouard@1394
  1700
       const char *fpr
edouard@1394
  1701
    )
edouard@1394
  1702
{
edouard@1394
  1703
    PEP_STATUS status = PEP_STATUS_OK;
edouard@1394
  1704
    
vb@2535
  1705
    assert(session && me);
vb@2535
  1706
    assert(!EMPTYSTR(fpr));
vb@2535
  1707
    assert(!EMPTYSTR(me->address));
vb@2535
  1708
    assert(!EMPTYSTR(me->user_id));
vb@2535
  1709
    assert(!EMPTYSTR(me->username));
vb@2535
  1710
vb@2535
  1711
    if (!session || !me || EMPTYSTR(fpr) || EMPTYSTR(me->address) ||
vb@2535
  1712
            EMPTYSTR(me->user_id) || EMPTYSTR(me->username))
edouard@1394
  1713
        return PEP_ILLEGAL_VALUE;
vb@2535
  1714
vb@2535
  1715
    status = _myself(session, me, false, true);
vb@2535
  1716
    // we do not need a valid key but dislike other errors
vb@2535
  1717
    if (status != PEP_STATUS_OK && status != PEP_GET_KEY_FAILED && status != PEP_KEY_UNSUITABLE)
krista@2461
  1718
        return status;
vb@2535
  1719
    status = PEP_STATUS_OK;
krista@2805
  1720
krista@2805
  1721
    bool private = false;
krista@2805
  1722
    status = contains_priv_key(session, fpr, &private);
krista@2805
  1723
    
krista@2805
  1724
    if (status != PEP_STATUS_OK)
krista@2805
  1725
        return status;
krista@2805
  1726
        
krista@2805
  1727
    if (!private)
krista@2805
  1728
        return PEP_KEY_UNSUITABLE;
vb@2535
  1729
 
vb@2535
  1730
    if (me->fpr)
vb@2535
  1731
        free(me->fpr);
vb@2535
  1732
    me->fpr = strdup(fpr);
vb@2535
  1733
    assert(me->fpr);
vb@2535
  1734
    if (!me->fpr)
vb@2535
  1735
        return PEP_OUT_OF_MEMORY;
krista@2461
  1736
krista@2548
  1737
    status = validate_fpr(session, me, false);
vb@2535
  1738
    if (status)
vb@2535
  1739
        return status;
vb@2535
  1740
vb@2535
  1741
    me->comm_type = PEP_ct_pEp;
vb@2535
  1742
    status = set_identity(session, me);
edouard@1394
  1743
    return status;
edouard@1394
  1744
}
krista@1357
  1745
krista@1357
  1746
PEP_STATUS contains_priv_key(PEP_SESSION session, const char *fpr,
krista@1357
  1747
                             bool *has_private) {
krista@1357
  1748
krista@1357
  1749
    assert(session);
krista@1357
  1750
    assert(fpr);
krista@1357
  1751
    assert(has_private);
krista@1357
  1752
    
krista@1357
  1753
    if (!(session && fpr && has_private))
krista@1357
  1754
        return PEP_ILLEGAL_VALUE;
krista@1357
  1755
krista@1357
  1756
    return session->cryptotech[PEP_crypt_OpenPGP].contains_priv_key(session, fpr, has_private);
edouard@1385
  1757
}
krista@2471
  1758
krista@2471
  1759
PEP_STATUS add_mistrusted_key(PEP_SESSION session, const char* fpr)
krista@2471
  1760
{
krista@2471
  1761
    int result;
krista@2471
  1762
krista@2471
  1763
    assert(!EMPTYSTR(fpr));
krista@2471
  1764
    
krista@2471
  1765
    if (!(session) || EMPTYSTR(fpr))
krista@2471
  1766
        return PEP_ILLEGAL_VALUE;
krista@2471
  1767
krista@2471
  1768
    sqlite3_reset(session->add_mistrusted_key);
krista@2471
  1769
    sqlite3_bind_text(session->add_mistrusted_key, 1, fpr, -1,
krista@2471
  1770
            SQLITE_STATIC);
krista@2471
  1771
krista@2471
  1772
    result = sqlite3_step(session->add_mistrusted_key);
krista@2471
  1773
    sqlite3_reset(session->add_mistrusted_key);
krista@2471
  1774
krista@2471
  1775
    if (result != SQLITE_DONE)
krista@2471
  1776
        return PEP_CANNOT_SET_PGP_KEYPAIR; // FIXME: Better status?
krista@2471
  1777
krista@2471
  1778
    return PEP_STATUS_OK;
krista@2471
  1779
}
krista@2471
  1780
krista@2471
  1781
PEP_STATUS delete_mistrusted_key(PEP_SESSION session, const char* fpr)
krista@2471
  1782
{
krista@2471
  1783
    int result;
krista@2471
  1784
krista@2471
  1785
    assert(!EMPTYSTR(fpr));
krista@2471
  1786
    
krista@2471
  1787
    if (!(session) || EMPTYSTR(fpr))
krista@2471
  1788
        return PEP_ILLEGAL_VALUE;
krista@2471
  1789
krista@2471
  1790
    sqlite3_reset(session->delete_mistrusted_key);
krista@2471
  1791
    sqlite3_bind_text(session->delete_mistrusted_key, 1, fpr, -1,
krista@2471
  1792
            SQLITE_STATIC);
krista@2471
  1793
krista@2471
  1794
    result = sqlite3_step(session->delete_mistrusted_key);
krista@2471
  1795
    sqlite3_reset(session->delete_mistrusted_key);
krista@2471
  1796
krista@2471
  1797
    if (result != SQLITE_DONE)
krista@2471
  1798
        return PEP_UNKNOWN_ERROR; // FIXME: Better status?
krista@2471
  1799
krista@2471
  1800
    return PEP_STATUS_OK;
krista@2471
  1801
}
krista@2471
  1802
krista@2471
  1803
PEP_STATUS is_mistrusted_key(PEP_SESSION session, const char* fpr,
krista@2471
  1804
                             bool* mistrusted)
krista@2471
  1805
{
krista@2471
  1806
    PEP_STATUS status = PEP_STATUS_OK;
krista@2471
  1807
krista@2471
  1808
    assert(session);
krista@2471
  1809
    assert(!EMPTYSTR(fpr));
krista@2471
  1810
krista@2471
  1811
    if (!(session && fpr))
krista@2471
  1812
        return PEP_ILLEGAL_VALUE;
krista@2471
  1813
krista@2471
  1814
    *mistrusted = false;
krista@2471
  1815
krista@2471
  1816
    sqlite3_reset(session->is_mistrusted_key);
krista@2471
  1817
    sqlite3_bind_text(session->is_mistrusted_key, 1, fpr, -1, SQLITE_STATIC);
krista@2471
  1818
krista@2471
  1819
    int result;
krista@2471
  1820
krista@2471
  1821
    result = sqlite3_step(session->is_mistrusted_key);
krista@2471
  1822
    switch (result) {
krista@2471
  1823
    case SQLITE_ROW:
krista@2471
  1824
        *mistrusted = sqlite3_column_int(session->is_mistrusted_key, 0);
krista@2471
  1825
        status = PEP_STATUS_OK;
krista@2471
  1826
        break;
krista@2471
  1827
krista@2471
  1828
    default:
krista@2471
  1829
        status = PEP_UNKNOWN_ERROR;
krista@2471
  1830
    }
krista@2471
  1831
krista@2471
  1832
    sqlite3_reset(session->is_mistrusted_key);
krista@2471
  1833
    return status;
krista@2471
  1834
}
vb@2539
  1835
vb@2539
  1836
#ifdef USE_GPG
vb@2539
  1837
PEP_STATUS pgp_find_trusted_private_keys(
vb@2539
  1838
        PEP_SESSION session, stringlist_t **keylist
vb@2539
  1839
    );
vb@2539
  1840
vb@2539
  1841
enum _pgp_thing {
vb@2539
  1842
    _pgp_none = 0,
vb@2539
  1843
    _pgp_fpr,
vb@2539
  1844
    _pgp_email,
vb@2539
  1845
    _pgp_name
vb@2539
  1846
};
vb@2539
  1847
vb@2539
  1848
static enum _pgp_thing _pgp_thing_next(enum _pgp_thing thing)
vb@2539
  1849
{
vb@2539
  1850
    switch (thing) {
vb@2539
  1851
        case _pgp_fpr:
vb@2539
  1852
            return _pgp_email;
vb@2539
  1853
        case _pgp_email:
vb@2539
  1854
            return _pgp_name;
vb@2539
  1855
        case _pgp_name:
vb@2539
  1856
            return _pgp_fpr;
vb@2539
  1857
        default:
vb@2539
  1858
            return _pgp_fpr;
vb@2539
  1859
    }
vb@2539
  1860
}
vb@2539
  1861
vb@2539
  1862
PEP_STATUS pgp_import_ultimately_trusted_keypairs(PEP_SESSION session) {
vb@2539
  1863
    assert(session);
vb@2539
  1864
    if (!session)
vb@2539
  1865
        return PEP_ILLEGAL_VALUE;
vb@2539
  1866
vb@2539
  1867
    stringlist_t* priv_keylist = NULL;
vb@2539
  1868
    PEP_STATUS status = PEP_STATUS_OK;
vb@2539
  1869
vb@2539
  1870
    // 1. get keys
vb@2539
  1871
    status = pgp_find_trusted_private_keys(session, &priv_keylist);
vb@2539
  1872
    if (status)
vb@2539
  1873
        return status;
vb@2539
  1874
vb@2539
  1875
    pEp_identity *identity = NULL;
vb@2539
  1876
    stringlist_t *_sl;
vb@2541
  1877
	
vb@2541
  1878
    char *fpr = NULL;
vb@2539
  1879
    enum _pgp_thing thing = _pgp_none;
vb@2539
  1880
    for (_sl = priv_keylist; _sl && _sl->value; _sl = _sl->next) {
vb@2539
  1881
        thing = _pgp_thing_next(thing);
vb@2539
  1882
        switch (thing) {
vb@2539
  1883
            case _pgp_fpr:
vb@2539
  1884
                identity = new_identity(NULL, NULL, PEP_OWN_USERID, NULL);
vb@2539
  1885
                if (!identity)
vb@2539
  1886
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1887
                identity->me = true;
vb@2539
  1888
                fpr = strdup(_sl->value);
vb@2539
  1889
                assert(fpr);
vb@2539
  1890
                if (!fpr) {
vb@2539
  1891
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1892
                    free_identity(identity);
vb@2539
  1893
                }
vb@2539
  1894
                break;
vb@2539
  1895
            case _pgp_email:
vb@2539
  1896
                assert(identity);
vb@2539
  1897
                identity->address = strdup(_sl->value);
vb@2539
  1898
                assert(identity->address);
vb@2539
  1899
                if (!identity->address) {
vb@2539
  1900
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1901
                    free_identity(identity);
vb@2539
  1902
                }
vb@2539
  1903
                break;
vb@2539
  1904
            case _pgp_name:
vb@2539
  1905
                assert(identity);
vb@2539
  1906
                identity->username = strdup(_sl->value);
vb@2539
  1907
                assert(identity->username);
vb@2539
  1908
                if (!identity->username)
vb@2539
  1909
                    status = PEP_OUT_OF_MEMORY;
vb@2539
  1910
                else
vb@2539
  1911
                    status = set_own_key(session, identity, fpr);
vb@2539
  1912
                free_identity(identity);
vb@2539
  1913
                identity = NULL;
vb@2539
  1914
                break;
vb@2539
  1915
            default:
vb@2539
  1916
                assert(0);
vb@2539
  1917
                free_identity(identity);
vb@2539
  1918
                status = PEP_UNKNOWN_ERROR;
vb@2539
  1919
        }
vb@2539
  1920
        if (status)
vb@2539
  1921
            break;
vb@2539
  1922
    }
vb@2539
  1923
    
vb@2539
  1924
    free_stringlist(priv_keylist);
vb@2539
  1925
    return status;
vb@2539
  1926
}
vb@2539
  1927
#endif // USE_GPG