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src/pEpEngine.c
author vb
Wed, 11 Mar 2015 15:54:19 +0100
changeset 107 fbef1c59da96
parent 98 9e3d28932e7b
child 109 297efc53ba70
permissions -rw-r--r--
... 
     1 #include "dynamic_api.h"

     2 #include "pEp_internal.h"

     3 #include "cryptotech.h"

     4 #include "transport.h"

     5 

     6 int init_count = -1;

     7 

     8 DYNAMIC_API PEP_STATUS init(PEP_SESSION *session)

     9 {

    10     PEP_STATUS status = PEP_STATUS_OK;

    11 	int int_result;

    12 	static const char *sql_log;

    13 	static const char *sql_safeword;

    14 	static const char *sql_get_identity;

    15 	static const char *sql_set_person;

    16 	static const char *sql_set_pgp_keypair;

    17 	static const char *sql_set_identity;

    18 	static const char *sql_set_trust;

    19     static const char *sql_get_trust;

    20     bool in_first = false;

    21 

    22     assert(sqlite3_threadsafe());

    23     if (!sqlite3_threadsafe())

    24         return PEP_INIT_SQLITE3_WITHOUT_MUTEX;

    25 

    26     // a little race condition - but still a race condition

    27     // removed by calling caveat (see documentation)

    28 

    29     ++init_count;

    30     if (init_count == 0)

    31         in_first = true;

    32 

    33 	assert(session);

    34 	*session = NULL;

    35 

    36     pEpSession *_session = calloc(1, sizeof(pEpSession));

    37 	assert(_session);

    38 	if (_session == NULL)

    39 		goto enomem;

    40 

    41 	_session->version = PEP_ENGINE_VERSION;

    42 

    43     assert(LOCAL_DB);

    44     if (LOCAL_DB == NULL) {

    45         status = PEP_INIT_CANNOT_OPEN_DB;

    46         goto pep_error;

    47     }

    48 

    49 	int_result = sqlite3_open_v2(

    50 			LOCAL_DB,

    51 			&_session->db,

    52 			SQLITE_OPEN_READWRITE

    53 				| SQLITE_OPEN_CREATE

    54 				| SQLITE_OPEN_FULLMUTEX

    55 				| SQLITE_OPEN_PRIVATECACHE,

    56 			NULL 

    57 		);

    58 

    59 	if (int_result != SQLITE_OK) {

    60 		status = PEP_INIT_CANNOT_OPEN_DB;

    61         goto pep_error;

    62 	}

    63 

    64 	sqlite3_busy_timeout(_session->db, BUSY_WAIT_TIME);

    65 

    66     assert(SYSTEM_DB);

    67     if (SYSTEM_DB == NULL) {

    68 		status = PEP_INIT_CANNOT_OPEN_SYSTEM_DB;

    69         goto pep_error;

    70     }

    71 

    72 	int_result = sqlite3_open_v2(

    73 			SYSTEM_DB, &_session->system_db,

    74 			SQLITE_OPEN_READONLY

    75 				| SQLITE_OPEN_FULLMUTEX

    76 				| SQLITE_OPEN_SHAREDCACHE,

    77 			NULL

    78 		);

    79 

    80 	if (int_result != SQLITE_OK) {

    81 		status = PEP_INIT_CANNOT_OPEN_SYSTEM_DB;

    82         goto pep_error;

    83 	}

    84 

    85 	sqlite3_busy_timeout(_session->system_db, 1000);

    86 

    87     if (in_first) {

    88         int_result = sqlite3_exec(

    89             _session->db,

    90                 "create table if not exists version_info ("

    91                 "	id integer primary key,"

    92                 "	timestamp integer default (datetime('now')) ,"

    93                 "	version text,"

    94                 "	comment text"

    95                 ");"

    96                 "create table if not exists log ("

    97                 "	timestamp integer default (datetime('now')) ,"

    98                 "	title text not null,"

    99                 "	entity text not null,"

   100                 "	description text,"

   101                 "	comment text"

   102                 ");"

   103                 "create index if not exists log_timestamp on log ("

   104                 "	timestamp"

   105                 ");"

   106                 "create table if not exists pgp_keypair ("

   107                 "	fpr text primary key,"

   108                 "	public_id text unique,"

   109                 "   private_id text,"

   110                 "	created integer,"

   111                 "	expires integer,"

   112                 "	comment text"

   113                 ");"

   114                 "create index if not exists pgp_keypair_expires on pgp_keypair ("

   115                 "	expires"

   116                 ");"

   117                 "create table if not exists person ("

   118                 "	id text primary key,"

   119                 "	username text not null,"

   120                 "	main_key_id text"

   121                 "		references pgp_keypair (fpr)"

   122                 "		on delete set null,"

   123                 "   lang text,"

   124                 "	comment text"

   125                 ");"

   126                 "create table if not exists identity ("

   127                 "	address text primary key,"

   128                 "	user_id text"

   129                 "		references person (id)"

   130                 "		on delete cascade,"

   131                 "	main_key_id text"

   132                 "		references pgp_keypair (fpr)"

   133                 "		on delete set null,"

   134                 "	comment text"

   135                 ");"

   136                 "create table if not exists trust ("

   137                 "   user_id text not null"

   138                 "       references person (id)"

   139                 "		on delete cascade,"

   140                 "   pgp_keypair_fpr text not null"

   141                 "       references pgp_keypair (fpr)"

   142                 "       on delete cascade,"

   143                 "   comm_type integer not null,"

   144                 "	comment text"

   145                 ");"

   146                 "create unique index if not exists trust_index on trust ("

   147                 "   user_id,"

   148                 "   pgp_keypair_fpr"

   149                 ");",

   150             NULL,

   151             NULL,

   152             NULL

   153         );

   154         assert(int_result == SQLITE_OK);

   155 

   156         int_result = sqlite3_exec(

   157             _session->db,

   158             "insert or replace into version_info (id, version) values (1, '1.0');",

   159             NULL,

   160             NULL,

   161             NULL

   162         );

   163         assert(int_result == SQLITE_OK);

   164 

   165         sql_log = "insert into log (title, entity, description, comment)"

   166                   "values (?1, ?2, ?3, ?4);";

   167 

   168         sql_get_identity =	"select fpr, identity.user_id, username, comm_type, lang"

   169                             "   from identity"

   170                             "   join person on id = identity.user_id"

   171                             "   join pgp_keypair on fpr = identity.main_key_id"

   172                             "   join trust on id = trust.user_id"

   173                             "       and pgp_keypair_fpr = identity.main_key_id"

   174                             "   where address = ?1 ;";

   175 

   176         sql_safeword = "select id, word from wordlist where lang = lower(?1) "

   177                        "and id = ?2 ;";

   178 

   179         sql_set_person = "insert or replace into person (id, username, lang) "

   180                          "values (?1, ?2, ?3) ;";

   181 

   182         sql_set_pgp_keypair = "insert or replace into pgp_keypair (fpr) "

   183                               "values (?1) ;";

   184 

   185         sql_set_identity = "insert or replace into identity (address, main_key_id, "

   186                            "user_id) values (?1, ?2, ?3) ;";

   187 

   188         sql_set_trust = "insert or replace into trust (user_id, pgp_keypair_fpr, comm_type) "

   189                         "values (?1, ?2, ?3) ;";

   190 

   191         sql_get_trust = "select user_id, comm_type from trust where user_id = ?1 "

   192                         "and pgp_keypair_fpr = ?2 ;";

   193     }

   194 

   195     int_result = sqlite3_prepare_v2(_session->db, sql_log, strlen(sql_log),

   196             &_session->log, NULL);

   197 	assert(int_result == SQLITE_OK);

   198 

   199     int_result = sqlite3_prepare_v2(_session->system_db, sql_safeword,

   200             strlen(sql_safeword), &_session->safeword, NULL);

   201 	assert(int_result == SQLITE_OK);

   202 

   203     int_result = sqlite3_prepare_v2(_session->db, sql_get_identity,

   204             strlen(sql_get_identity), &_session->get_identity, NULL);

   205 	assert(int_result == SQLITE_OK);

   206 

   207     int_result = sqlite3_prepare_v2(_session->db, sql_set_person,

   208             strlen(sql_set_person), &_session->set_person, NULL);

   209     assert(int_result == SQLITE_OK);

   210 

   211     int_result = sqlite3_prepare_v2(_session->db, sql_set_pgp_keypair,

   212             strlen(sql_set_pgp_keypair), &_session->set_pgp_keypair, NULL);

   213 	assert(int_result == SQLITE_OK);

   214 

   215     int_result = sqlite3_prepare_v2(_session->db, sql_set_identity,

   216             strlen(sql_set_identity), &_session->set_identity, NULL);

   217 	assert(int_result == SQLITE_OK);

   218 

   219     int_result = sqlite3_prepare_v2(_session->db, sql_set_trust,

   220             strlen(sql_set_trust), &_session->set_trust, NULL);

   221 	assert(int_result == SQLITE_OK);

   222 

   223     int_result = sqlite3_prepare_v2(_session->db, sql_get_trust,

   224             strlen(sql_get_trust), &_session->get_trust, NULL);

   225     assert(int_result == SQLITE_OK);

   226 

   227     status = init_cryptotech(_session, in_first);

   228     if (status != PEP_STATUS_OK)

   229         goto pep_error;

   230 

   231     status = init_transport_system(_session, in_first);

   232     if (status != PEP_STATUS_OK)

   233         goto pep_error;

   234 

   235     status = log_event(_session, "init", "pEp " PEP_ENGINE_VERSION, NULL, NULL);

   236     if (status != PEP_STATUS_OK)

   237         goto pep_error;

   238 

   239 	*session = _session;

   240 	return PEP_STATUS_OK;

   241 

   242 enomem:

   243     status = PEP_OUT_OF_MEMORY;

   244 

   245 pep_error:

   246     release(_session);

   247     return status;

   248 }

   249 

   250 DYNAMIC_API void release(PEP_SESSION session)

   251 {

   252     bool out_last = false;

   253 

   254     assert(init_count >= 0);

   255 	assert(session);

   256 

   257     // a small race condition but still a race condition

   258     // removed by calling caveat (see documentation)

   259 

   260     if (init_count == 0)

   261         out_last = true;

   262     --init_count;

   263 

   264 	if (session) {

   265 		if (session->db) {

   266             if (session->safeword)

   267                 sqlite3_finalize(session->safeword);

   268             if (session->log)

   269                 sqlite3_finalize(session->log);

   270             if (session->get_identity)

   271                 sqlite3_finalize(session->get_identity);

   272             if (session->set_identity)

   273                 sqlite3_finalize(session->set_identity);

   274             if (session->set_person)

   275                 sqlite3_finalize(session->set_person);

   276             if (session->set_pgp_keypair)

   277                 sqlite3_finalize(session->set_pgp_keypair);

   278             if (session->set_trust)

   279                 sqlite3_finalize(session->set_trust);

   280             if (session->get_trust)

   281                 sqlite3_finalize(session->get_trust);

   282 

   283             if (session->db)

   284                 sqlite3_close_v2(session->db);

   285             if (session->system_db)

   286                 sqlite3_close_v2(session->system_db);

   287 		}

   288 

   289         release_transport_system(session, out_last);

   290         release_cryptotech(session, out_last);

   291 

   292         free(session);

   293     }

   294 }

   295 

   296 DYNAMIC_API PEP_STATUS log_event(

   297         PEP_SESSION session, const char *title, const char *entity,

   298         const char *description, const char *comment

   299     )

   300 {

   301 	PEP_STATUS status = PEP_STATUS_OK;

   302 	int result;

   303 

   304 	assert(session);

   305 	assert(title);

   306 	assert(entity);

   307 

   308 	sqlite3_reset(session->log);

   309 	sqlite3_bind_text(session->log, 1, title, -1, SQLITE_STATIC);

   310 	sqlite3_bind_text(session->log, 2, entity, -1, SQLITE_STATIC);

   311 	if (description)

   312         sqlite3_bind_text(session->log, 3, description, -1, SQLITE_STATIC);

   313 	else

   314 		sqlite3_bind_null(session->log, 3);

   315 	if (comment)

   316 		sqlite3_bind_text(session->log, 4, comment, -1, SQLITE_STATIC);

   317 	else

   318 		sqlite3_bind_null(session->log, 4);

   319 	do {

   320 		result = sqlite3_step(session->log);

   321 		assert(result == SQLITE_DONE || result == SQLITE_BUSY);

   322 		if (result != SQLITE_DONE && result != SQLITE_BUSY)

   323 			status = PEP_UNKNOWN_ERROR;

   324 	} while (result == SQLITE_BUSY);

   325 	sqlite3_reset(session->log);

   326 

   327 	return status;

   328 }

   329 

   330 DYNAMIC_API PEP_STATUS safeword(

   331             PEP_SESSION session, uint16_t value, const char *lang,

   332             char **word, size_t *wsize

   333         )

   334 {

   335 	PEP_STATUS status = PEP_STATUS_OK;

   336 	int result;

   337 

   338 	assert(session);

   339 	assert(word);

   340 	assert(wsize);

   341 

   342 	*word = NULL;

   343 	*wsize = 0;

   344 

   345 	if (lang == NULL)

   346 		lang = "en";

   347 

   348 	assert((lang[0] >= 'A' && lang[0] <= 'Z')

   349             || (lang[0] >= 'a' && lang[0] <= 'z'));

   350 	assert((lang[1] >= 'A' && lang[1] <= 'Z')

   351             || (lang[1] >= 'a' && lang[1] <= 'z'));

   352 	assert(lang[2] == 0);

   353 

   354 	sqlite3_reset(session->safeword);

   355     sqlite3_bind_text(session->safeword, 1, lang, -1, SQLITE_STATIC);

   356 	sqlite3_bind_int(session->safeword, 2, value);

   357 

   358 	result = sqlite3_step(session->safeword);

   359 	if (result == SQLITE_ROW) {

   360         *word = strdup((const char *) sqlite3_column_text(session->safeword,

   361                     1));

   362 		if (*word)

   363             *wsize = sqlite3_column_bytes(session->safeword, 1);

   364 		else

   365 			status = PEP_SAFEWORD_NOT_FOUND;

   366 	} else

   367 		status = PEP_SAFEWORD_NOT_FOUND;

   368 

   369 	sqlite3_reset(session->safeword);

   370 	return status;

   371 }

   372 

   373 DYNAMIC_API PEP_STATUS safewords(

   374         PEP_SESSION session, const char *fingerprint, const char *lang,

   375         char **words, size_t *wsize, int max_words

   376     )

   377 {

   378 	const char *source = fingerprint;

   379 	char *buffer = calloc(1, MAX_SAFEWORDS_SPACE);

   380 	char *dest = buffer;

   381 	size_t fsize;

   382     PEP_STATUS _status;

   383 

   384 	assert(session);

   385 	assert(fingerprint);

   386 	assert(words);

   387 	assert(wsize);

   388 	assert(max_words >= 0);

   389 

   390 	*words = NULL;

   391 	*wsize = 0;

   392 

   393     assert(buffer);

   394     if (buffer == NULL)

   395         return PEP_OUT_OF_MEMORY;

   396 

   397 	fsize = strlen(fingerprint);

   398 

   399 	if (lang == NULL)

   400 		lang = "en";

   401 

   402 	assert((lang[0] >= 'A' && lang[0] <= 'Z')

   403             || (lang[0] >= 'a' && lang[0] <= 'z'));

   404 	assert((lang[1] >= 'A' && lang[1] <= 'Z')

   405             || (lang[1] >= 'a' && lang[1] <= 'z'));

   406 	assert(lang[2] == 0);

   407 

   408 	int n_words = 0;

   409 	while (source < fingerprint + fsize) {

   410 		uint16_t value;

   411 		char *word;

   412 		size_t _wsize;

   413 		int j;

   414 

   415         for (value=0, j=0; j < 4 && source < fingerprint + fsize; ) {

   416 			if (*source >= 'a' && *source <= 'f')

   417 				value += (*source - 'a' + 10) << (3 - j++) * 4;

   418 			else if (*source >= 'A' && *source <= 'F')

   419 				value += (*source - 'A' + 10) << (3 - j++) * 4;

   420 			else if (*source >= '0' && *source <= '9')

   421 				value += (*source - '0') << (3 - j++) * 4;

   422 			

   423 			source++;

   424 		}

   425 

   426 		_status = safeword(session, value, lang, &word, &_wsize);

   427         if (_status == PEP_OUT_OF_MEMORY) {

   428             free(buffer);

   429             return PEP_OUT_OF_MEMORY;

   430         }

   431 		if (word == NULL) {

   432             free(buffer);

   433 			return PEP_SAFEWORD_NOT_FOUND;

   434         }

   435 

   436 		if (dest + _wsize < buffer + MAX_SAFEWORDS_SPACE - 1) {

   437 			strncpy(dest, word, _wsize);

   438             free(word);

   439 			dest += _wsize;

   440 		}

   441 		else {

   442             free(word);

   443 			break; // buffer full

   444         }

   445 

   446 		if (source < fingerprint + fsize

   447                 && dest + _wsize < buffer + MAX_SAFEWORDS_SPACE - 1)

   448 			*dest++ = ' ';

   449 

   450 		++n_words;

   451 		if (max_words && n_words >= max_words)

   452 			break;

   453 	}

   454 

   455 	*words = buffer;

   456 	*wsize = dest - buffer;

   457 	return PEP_STATUS_OK;

   458 }

   459 

   460 pEp_identity *new_identity(

   461         const char *address, const char *fpr, const char *user_id,

   462         const char *username

   463     )

   464 {

   465     pEp_identity *result = calloc(1, sizeof(pEp_identity));

   466     assert(result);

   467     if (result) {

   468         if (address) {

   469             result->address = strdup(address);

   470             assert(result->address);

   471             if (result->address == NULL) {

   472                 free(result);

   473                 return NULL;

   474             }

   475             result->address_size = strlen(address);

   476         }

   477         if (fpr) {

   478             result->fpr = strdup(fpr);

   479             assert(result->fpr);

   480             if (result->fpr == NULL) {

   481                 free_identity(result);

   482                 return NULL;

   483             }

   484             result->fpr_size = strlen(fpr);

   485         }

   486         if (user_id) {

   487             result->user_id = strdup(user_id);

   488             assert(result->user_id);

   489             if (result->user_id == NULL) {

   490                 free_identity(result);

   491                 return NULL;

   492             }

   493             result->user_id_size = strlen(user_id);

   494         }

   495         if (username) {

   496             result->username = strdup(username);

   497             assert(result->username);

   498             if (result->username == NULL) {

   499                 free_identity(result);

   500                 return NULL;

   501             }

   502             result->username_size = strlen(username);

   503         }

   504         result->struct_size = sizeof(pEp_identity);

   505     }

   506     return result;

   507 }

   508 

   509 pEp_identity *identity_dup(const pEp_identity *src)

   510 {

   511     assert(src);

   512 

   513     pEp_identity *dup = new_identity(src->address, src->fpr, src->user_id, src->username);

   514     assert(dup);

   515     if (dup == NULL)

   516         return NULL;

   517     

   518     dup->comm_type = src->comm_type;

   519     dup->lang[0] = src->lang[0];

   520     dup->lang[1] = src->lang[1];

   521     dup->lang[2] = 0;

   522     dup->me = src->me;

   523 

   524     return dup;

   525 }

   526 

   527 void free_identity(pEp_identity *identity)

   528 {

   529     if (identity) {

   530         free(identity->address);

   531         free(identity->fpr);

   532         free(identity->user_id);

   533         free(identity->username);

   534         free(identity);

   535     }

   536 }

   537 

   538 DYNAMIC_API PEP_STATUS get_identity(

   539         PEP_SESSION session, const char *address,

   540         pEp_identity **identity

   541     )

   542 {

   543 	PEP_STATUS status = PEP_STATUS_OK;

   544 	static pEp_identity *_identity;

   545 	int result;

   546 	const char *_lang;

   547 

   548 	assert(session);

   549 	assert(address);

   550     assert(address[0]);

   551 

   552     sqlite3_reset(session->get_identity);

   553     sqlite3_bind_text(session->get_identity, 1, address, -1, SQLITE_STATIC);

   554 

   555     result = sqlite3_step(session->get_identity);

   556 	switch (result) {

   557 	case SQLITE_ROW:

   558         _identity = new_identity(

   559                 address,

   560                 (const char *) sqlite3_column_text(session->get_identity, 0),

   561                 (const char *) sqlite3_column_text(session->get_identity, 1),

   562                 (const char *) sqlite3_column_text(session->get_identity, 2)

   563                 );

   564         assert(_identity);

   565         if (_identity == NULL)

   566             return PEP_OUT_OF_MEMORY;

   567 

   568         _identity->comm_type = (PEP_comm_type) sqlite3_column_int(session->get_identity, 3);

   569         _lang = (const char *) sqlite3_column_text(session->get_identity, 4);

   570         if (_lang && _lang[0]) {

   571 			assert(_lang[0] >= 'a' && _lang[0] <= 'z');

   572 			assert(_lang[1] >= 'a' && _lang[1] <= 'z');

   573 			assert(_lang[2] == 0);

   574 			_identity->lang[0] = _lang[0];

   575 			_identity->lang[1] = _lang[1];

   576             _identity->lang[2] = 0;

   577 		}

   578 		*identity = _identity;

   579 		break;

   580 	default:

   581         status = PEP_CANNOT_FIND_IDENTITY;

   582 		*identity = NULL;

   583 	}

   584 

   585     sqlite3_reset(session->get_identity);

   586 	return status;

   587 }

   588 

   589 DYNAMIC_API PEP_STATUS set_identity(

   590         PEP_SESSION session, const pEp_identity *identity

   591     )

   592 {

   593 	int result;

   594 

   595 	assert(session);

   596 	assert(identity);

   597 	assert(identity->address);

   598 	assert(identity->fpr);

   599 	assert(identity->user_id);

   600 	assert(identity->username);

   601 

   602 	sqlite3_exec(session->db, "BEGIN ;", NULL, NULL, NULL);

   603 

   604 	sqlite3_reset(session->set_person);

   605     sqlite3_bind_text(session->set_person, 1, identity->user_id, -1,

   606             SQLITE_STATIC);

   607     sqlite3_bind_text(session->set_person, 2, identity->username, -1,

   608             SQLITE_STATIC);

   609 	if (identity->lang[0])

   610         sqlite3_bind_text(session->set_person, 3, identity->lang, 1,

   611                 SQLITE_STATIC);

   612 	else

   613 		sqlite3_bind_null(session->set_person, 3);

   614 	result = sqlite3_step(session->set_person);

   615 	sqlite3_reset(session->set_person);

   616 	if (result != SQLITE_DONE) {

   617 		sqlite3_exec(session->db, "ROLLBACK ;", NULL, NULL, NULL);

   618 		return PEP_CANNOT_SET_PERSON;

   619 	}

   620 

   621 	sqlite3_reset(session->set_pgp_keypair);

   622     sqlite3_bind_text(session->set_pgp_keypair, 1, identity->fpr, -1,

   623             SQLITE_STATIC);

   624 	result = sqlite3_step(session->set_pgp_keypair);

   625 	sqlite3_reset(session->set_pgp_keypair);

   626 	if (result != SQLITE_DONE) {

   627 		sqlite3_exec(session->db, "ROLLBACK ;", NULL, NULL, NULL);

   628 		return PEP_CANNOT_SET_PGP_KEYPAIR;

   629 	}

   630 

   631 	sqlite3_reset(session->set_identity);

   632     sqlite3_bind_text(session->set_identity, 1, identity->address, -1,

   633             SQLITE_STATIC);

   634     sqlite3_bind_text(session->set_identity, 2, identity->fpr, -1,

   635             SQLITE_STATIC);

   636     sqlite3_bind_text(session->set_identity, 3, identity->user_id, -1,

   637             SQLITE_STATIC);

   638 	result = sqlite3_step(session->set_identity);

   639 	sqlite3_reset(session->set_identity);

   640 	if (result != SQLITE_DONE) {

   641 		sqlite3_exec(session->db, "ROLLBACK ;", NULL, NULL, NULL);

   642 		return PEP_CANNOT_SET_IDENTITY;

   643 	}

   644 

   645 	sqlite3_reset(session->set_trust);

   646     sqlite3_bind_text(session->set_trust, 1, identity->user_id, -1,

   647             SQLITE_STATIC);

   648     sqlite3_bind_text(session->set_trust, 2, identity->fpr, -1,

   649             SQLITE_STATIC);

   650 	sqlite3_bind_int(session->set_trust, 3, identity->comm_type);

   651 	result = sqlite3_step(session->set_trust);

   652 	sqlite3_reset(session->set_trust);

   653 	if (result != SQLITE_DONE) {

   654 		sqlite3_exec(session->db, "ROLLBACK ;", NULL, NULL, NULL);

   655 		return PEP_CANNOT_SET_IDENTITY;

   656 	}

   657 

   658     result = sqlite3_exec(session->db, "COMMIT ;", NULL, NULL, NULL);

   659 	if (result == SQLITE_OK)

   660 		return PEP_STATUS_OK;

   661 	else

   662 		return PEP_COMMIT_FAILED;

   663 }

   664 

   665 void pEp_free(void *p)

   666 {

   667     free(p);

   668 }

   669 

   670 DYNAMIC_API PEP_STATUS get_trust(PEP_SESSION session, pEp_identity *identity)

   671 {

   672     PEP_STATUS status = PEP_STATUS_OK;

   673     int result;

   674 

   675     assert(session);

   676     assert(identity);

   677     assert(identity->user_id);

   678     assert(identity->user_id[0]);

   679     assert(identity->fpr);

   680     assert(identity->fpr[0]);

   681 

   682     identity->comm_type = PEP_ct_unknown;

   683 

   684     sqlite3_reset(session->get_trust);

   685     sqlite3_bind_text(session->get_trust, 1, identity->user_id, -1, SQLITE_STATIC);

   686     sqlite3_bind_text(session->get_trust, 2, identity->fpr, -1, SQLITE_STATIC);

   687 

   688     result = sqlite3_step(session->get_trust);

   689     switch (result) {

   690     case SQLITE_ROW: {

   691         const char * user_id = (const char *) sqlite3_column_text(session->get_trust, 1);

   692         int comm_type = (PEP_comm_type) sqlite3_column_int(session->get_trust, 2);

   693 

   694         if (strcmp(user_id, identity->user_id) != 0) {

   695             free(identity->user_id);

   696             identity->user_id = strdup(user_id);

   697             assert(identity->user_id);

   698             if (identity->user_id == NULL)

   699                 return PEP_OUT_OF_MEMORY;

   700         }

   701         identity->comm_type = comm_type;

   702         break;

   703     }

   704  

   705     default:

   706         status = PEP_CANNOT_FIND_IDENTITY;

   707     }

   708 

   709     sqlite3_reset(session->get_trust);

   710     return status;

   711 }

   712 

   713 DYNAMIC_API PEP_STATUS decrypt_and_verify(

   714     PEP_SESSION session, const char *ctext, size_t csize,

   715     char **ptext, size_t *psize, stringlist_t **keylist

   716     )

   717 {

   718     return session->cryptotech[PEP_crypt_OpenPGP].decrypt_and_verify(session, ctext, csize, ptext, psize, keylist);

   719 }

   720 

   721 DYNAMIC_API PEP_STATUS encrypt_and_sign(

   722     PEP_SESSION session, const stringlist_t *keylist, const char *ptext,

   723     size_t psize, char **ctext, size_t *csize

   724     )

   725 {

   726     return session->cryptotech[PEP_crypt_OpenPGP].encrypt_and_sign(session, keylist, ptext, psize, ctext, csize);

   727 }

   728 

   729 DYNAMIC_API PEP_STATUS verify_text(

   730     PEP_SESSION session, const char *text, size_t size,

   731     const char *signature, size_t sig_size, stringlist_t **keylist

   732     )

   733 {

   734     return session->cryptotech[PEP_crypt_OpenPGP].verify_text(session, text, size, signature, sig_size, keylist);

   735 }

   736 

   737 DYNAMIC_API PEP_STATUS delete_keypair(PEP_SESSION session, const char *fpr)

   738 {

   739     return session->cryptotech[PEP_crypt_OpenPGP].delete_keypair(session, fpr);

   740 }

   741 

   742 DYNAMIC_API PEP_STATUS export_key(

   743         PEP_SESSION session, const char *fpr, char **key_data, size_t *size

   744     )

   745 {

   746     return session->cryptotech[PEP_crypt_OpenPGP].export_key(session, fpr, key_data, size);

   747 }

   748 

   749 DYNAMIC_API PEP_STATUS find_keys(

   750         PEP_SESSION session, const char *pattern, stringlist_t **keylist

   751     )

   752 {

   753     return session->cryptotech[PEP_crypt_OpenPGP].find_keys(session, pattern, keylist);

   754 }

   755 

   756 DYNAMIC_API PEP_STATUS generate_keypair(

   757         PEP_SESSION session, pEp_identity *identity

   758     )

   759 {

   760     return session->cryptotech[PEP_crypt_OpenPGP].generate_keypair(session, identity);

   761 }

   762 

   763 DYNAMIC_API PEP_STATUS get_key_rating(

   764         PEP_SESSION session,

   765         const char *fpr,

   766         PEP_comm_type *comm_type

   767     )

   768 {

   769     return session->cryptotech[PEP_crypt_OpenPGP].get_key_rating(session, fpr, comm_type);

   770 }

   771 

   772 DYNAMIC_API PEP_STATUS import_key(PEP_SESSION session, const char *key_data, size_t size)

   773 {

   774     return session->cryptotech[PEP_crypt_OpenPGP].import_key(session, key_data, size);

   775 }

   776 

   777 DYNAMIC_API PEP_STATUS recv_key(PEP_SESSION session, const char *pattern)

   778 {

   779     return session->cryptotech[PEP_crypt_OpenPGP].recv_key(session, pattern);

   780 }

   781 

   782 DYNAMIC_API PEP_STATUS send_key(PEP_SESSION session, const char *pattern)

   783 {

   784     return session->cryptotech[PEP_crypt_OpenPGP].send_key(session, pattern);

   785 }
repos/pEpEngine