internal AEgypten bugfix #1131: get full list of emails stored in certificated used for signing a received message
This commit is contained in:
Karl-Heinz Zimmer
parent
406ec04563
commit
4114f4400d
@ -1518,8 +1518,9 @@ struct SignatureMetaDataExtendedInfo
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char* algo;
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char* userid;
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char* name;
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char* email;
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char* comment;
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char** emailList;
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int emailCount;
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unsigned long algo_num;
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unsigned long validity;
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unsigned long userid_num;
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@ -1239,254 +1239,6 @@ err = 0;
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}
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static const char*
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sig_status_to_string( GpgmeSigStat status )
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{
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const char *result;
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switch (status) {
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case GPGME_SIG_STAT_NONE:
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result = "Oops: Signature not verified";
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break;
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case GPGME_SIG_STAT_NOSIG:
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result = "No signature found";
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break;
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case GPGME_SIG_STAT_GOOD:
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result = "Good signature";
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break;
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case GPGME_SIG_STAT_BAD:
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result = "BAD signature";
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break;
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case GPGME_SIG_STAT_NOKEY:
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result = "No public key to verify the signature";
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break;
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case GPGME_SIG_STAT_ERROR:
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result = "Error verifying the signature";
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break;
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case GPGME_SIG_STAT_DIFF:
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result = "Different results for signatures";
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break;
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default:
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result = "Error: Unknown status";
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break;
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}
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return result;
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}
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bool checkMessageSignature( char** cleartext,
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const char* signaturetext,
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bool signatureIsBinary,
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int signatureLen,
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struct SignatureMetaData* sigmeta )
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{
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GpgmeCtx ctx;
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GpgmeSigStat status;
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unsigned long sumGPGME;
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SigStatusFlags sumPlug;
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GpgmeData datapart, sigpart;
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char* rClear = 0;
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size_t clearLen;
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GpgmeError err;
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GpgmeKey key;
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time_t created;
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int sig_idx = 0;
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const char* statusStr;
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const char* fpr;
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bool isOpaqueSigned;
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if( !cleartext ) {
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if( sigmeta )
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storeNewCharPtr( &sigmeta->status,
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__GPGMEPLUG_ERROR_CLEARTEXT_IS_ZERO );
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return false;
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}
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isOpaqueSigned = !*cleartext;
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gpgme_new( &ctx );
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gpgme_set_protocol (ctx, GPGMEPLUG_PROTOCOL);
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gpgme_set_armor (ctx, signatureIsBinary ? 0 : 1);
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/* gpgme_set_textmode (ctx, signatureIsBinary ? 0 : 1); */
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if( isOpaqueSigned )
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gpgme_data_new( &datapart );
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else
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gpgme_data_new_from_mem( &datapart, *cleartext,
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strlen( *cleartext ), 1 );
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gpgme_data_new_from_mem( &sigpart,
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signaturetext,
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signatureIsBinary
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? signatureLen
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: strlen( signaturetext ),
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1 );
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gpgme_op_verify( ctx, sigpart, datapart, &status );
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if( isOpaqueSigned ) {
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rClear = gpgme_data_release_and_get_mem( datapart, &clearLen );
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*cleartext = malloc( clearLen + 1 );
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if( *cleartext ) {
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if( clearLen )
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strncpy(*cleartext, rClear, clearLen );
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(*cleartext)[clearLen] = '\0';
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}
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free( rClear );
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}
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else
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gpgme_data_release( datapart );
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gpgme_data_release( sigpart );
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/* Provide information in the sigmeta struct */
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/* the status string */
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statusStr = sig_status_to_string( status );
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sigmeta->status = malloc( strlen( statusStr ) + 1 );
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if( sigmeta->status ) {
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strcpy( sigmeta->status, statusStr );
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sigmeta->status[strlen( statusStr )] = '\0';
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} else
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; /* nothing to do, is already 0 */
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/* Extended information for any number of signatures. */
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fpr = gpgme_get_sig_status( ctx, sig_idx, &status, &created );
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sigmeta->extended_info = 0;
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while( fpr != NULL ) {
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struct tm* ctime_val;
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const char* sig_status;
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void* realloc_return = realloc( sigmeta->extended_info,
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sizeof( struct SignatureMetaDataExtendedInfo ) * ( sig_idx + 1 ) );
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if( realloc_return ) {
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sigmeta->extended_info = realloc_return;
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/* clear the data area */
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memset( &sigmeta->extended_info[sig_idx], 0, sizeof (struct SignatureMetaDataExtendedInfo) );
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/* the creation time */
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sigmeta->extended_info[sig_idx].creation_time = malloc( sizeof( struct tm ) );
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if( sigmeta->extended_info[sig_idx].creation_time ) {
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ctime_val = localtime( &created );
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memcpy( sigmeta->extended_info[sig_idx].creation_time,
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ctime_val, sizeof( struct tm ) );
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}
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/* the extended signature verification status */
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sumGPGME = gpgme_get_sig_ulong_attr( ctx,
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sig_idx,
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GPGME_ATTR_SIG_SUMMARY,
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0 );
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// translate GPGME status flags to common CryptPlug status flags
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sumPlug = 0;
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if( sumGPGME & GPGME_SIGSUM_VALID ) sumPlug |= SigStat_VALID ;
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if( sumGPGME & GPGME_SIGSUM_GREEN ) sumPlug |= SigStat_GREEN ;
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if( sumGPGME & GPGME_SIGSUM_RED ) sumPlug |= SigStat_RED ;
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if( sumGPGME & GPGME_SIGSUM_KEY_REVOKED ) sumPlug |= SigStat_KEY_REVOKED;
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if( sumGPGME & GPGME_SIGSUM_KEY_EXPIRED ) sumPlug |= SigStat_KEY_EXPIRED;
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if( sumGPGME & GPGME_SIGSUM_SIG_EXPIRED ) sumPlug |= SigStat_SIG_EXPIRED;
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if( sumGPGME & GPGME_SIGSUM_KEY_MISSING ) sumPlug |= SigStat_KEY_MISSING;
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if( sumGPGME & GPGME_SIGSUM_CRL_MISSING ) sumPlug |= SigStat_CRL_MISSING;
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if( sumGPGME & GPGME_SIGSUM_CRL_TOO_OLD ) sumPlug |= SigStat_CRL_TOO_OLD;
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if( sumGPGME & GPGME_SIGSUM_BAD_POLICY ) sumPlug |= SigStat_BAD_POLICY ;
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if( sumGPGME & GPGME_SIGSUM_SYS_ERROR ) sumPlug |= SigStat_SYS_ERROR ;
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if( !sumPlug )
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sumPlug = SigStat_NUMERICAL_CODE | sumGPGME;
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sigmeta->extended_info[sig_idx].sigStatusFlags = sumPlug;
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sigmeta->extended_info[sig_idx].validity = GPGME_VALIDITY_UNKNOWN;
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err = gpgme_get_sig_key (ctx, sig_idx, &key);
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if ( err == GPGME_No_Error) {
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const char* attr_string;
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unsigned long attr_ulong;
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/* extract key identidy */
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_KEYID, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].keyid, attr_string );
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/* extract finger print */
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_FPR, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].fingerprint,
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attr_string );
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/* algorithms useable with this key */
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_ALGO, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].algo,
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attr_string );
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attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_ALGO, 0, 0);
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sigmeta->extended_info[sig_idx].algo_num = attr_ulong;
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/* extract key validity */
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attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_VALIDITY, 0, 0);
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sigmeta->extended_info[sig_idx].validity = attr_ulong;
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/* extract user id, according to the documentation it's representable
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* as a number, but it seems that it also has a string representation
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*/
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_USERID, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].userid,
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attr_string );
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attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_USERID, 0, 0);
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sigmeta->extended_info[sig_idx].userid_num = attr_ulong;
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/* extract the length */
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attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_LEN, 0, 0);
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sigmeta->extended_info[sig_idx].keylen = attr_ulong;
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/* extract the creation time of the key */
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attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_CREATED, 0, 0);
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sigmeta->extended_info[sig_idx].key_created = attr_ulong;
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/* extract the expiration time of the key */
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attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_EXPIRE, 0, 0);
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sigmeta->extended_info[sig_idx].key_expires = attr_ulong;
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/* extract user name */
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_NAME, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].name,
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attr_string );
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/* extract email */
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_EMAIL, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].email,
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attr_string );
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/* extract the comment */
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attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_COMMENT, 0, 0);
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if (attr_string != 0)
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].comment,
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attr_string );
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}
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else
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].fingerprint, fpr );
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sig_status = sig_status_to_string( status );
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storeNewCharPtr( &sigmeta->extended_info[sig_idx].status_text,
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sig_status );
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} else
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break; /* if allocation fails once, it isn't likely to
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succeed the next time either */
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fpr = gpgme_get_sig_status (ctx, ++sig_idx, &status, &created);
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}
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sigmeta->extended_info_count = sig_idx;
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sigmeta->nota_xml = gpgme_get_notation( ctx );
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sigmeta->status_code = status;
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gpgme_release( ctx );
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return ( status == GPGME_SIG_STAT_GOOD );
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}
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bool storeCertificatesFromMessage(
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const char* ciphertext ){ return true; }
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@ -2584,7 +2336,7 @@ bool findCertificates( const char* addressee,
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siz += strlen( openBracket );
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siz += strlen( s2 );
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siz += strlen( closeBracket );
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DNs[ nFound ] = xstrdup( dn );
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DNs[ nFound ] = dn;
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FPRs[nFound ] = xstrdup( s2 );
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++nFound;
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if( nFound >= maxCerts ) {
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@ -2628,3 +2380,292 @@ bool findCertificates( const char* addressee,
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return ( 0 < nFound );
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}
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static const char*
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sig_status_to_string( GpgmeSigStat status )
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{
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const char *result;
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switch (status) {
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case GPGME_SIG_STAT_NONE:
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result = "Oops: Signature not verified";
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break;
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case GPGME_SIG_STAT_NOSIG:
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result = "No signature found";
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break;
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case GPGME_SIG_STAT_GOOD:
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result = "Good signature";
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break;
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case GPGME_SIG_STAT_BAD:
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result = "BAD signature";
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break;
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case GPGME_SIG_STAT_NOKEY:
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result = "No public key to verify the signature";
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break;
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case GPGME_SIG_STAT_ERROR:
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result = "Error verifying the signature";
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break;
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case GPGME_SIG_STAT_DIFF:
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result = "Different results for signatures";
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break;
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default:
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result = "Error: Unknown status";
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break;
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}
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return result;
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}
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bool checkMessageSignature( char** cleartext,
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const char* signaturetext,
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bool signatureIsBinary,
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int signatureLen,
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struct SignatureMetaData* sigmeta )
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{
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GpgmeCtx ctx;
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GpgmeSigStat status;
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unsigned long sumGPGME;
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SigStatusFlags sumPlug;
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GpgmeData datapart, sigpart;
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char* rClear = 0;
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size_t clearLen;
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GpgmeError err;
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GpgmeKey key;
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time_t created;
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struct DnPair* a;
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char* dn;
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int sig_idx=0;
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int UID_idx=0;
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const char* statusStr;
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const char* fpr;
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bool isOpaqueSigned;
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if( !cleartext ) {
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if( sigmeta )
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storeNewCharPtr( &sigmeta->status,
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__GPGMEPLUG_ERROR_CLEARTEXT_IS_ZERO );
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return false;
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}
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isOpaqueSigned = !*cleartext;
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gpgme_new( &ctx );
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gpgme_set_protocol (ctx, GPGMEPLUG_PROTOCOL);
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gpgme_set_armor (ctx, signatureIsBinary ? 0 : 1);
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/* gpgme_set_textmode (ctx, signatureIsBinary ? 0 : 1); */
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if( isOpaqueSigned )
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gpgme_data_new( &datapart );
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else
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gpgme_data_new_from_mem( &datapart, *cleartext,
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strlen( *cleartext ), 1 );
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gpgme_data_new_from_mem( &sigpart,
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signaturetext,
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signatureIsBinary
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? signatureLen
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: strlen( signaturetext ),
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1 );
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gpgme_op_verify( ctx, sigpart, datapart, &status );
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if( isOpaqueSigned ) {
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rClear = gpgme_data_release_and_get_mem( datapart, &clearLen );
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*cleartext = malloc( clearLen + 1 );
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if( *cleartext ) {
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if( clearLen )
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strncpy(*cleartext, rClear, clearLen );
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(*cleartext)[clearLen] = '\0';
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}
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free( rClear );
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}
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else
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gpgme_data_release( datapart );
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gpgme_data_release( sigpart );
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/* Provide information in the sigmeta struct */
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/* the status string */
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statusStr = sig_status_to_string( status );
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sigmeta->status = malloc( strlen( statusStr ) + 1 );
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if( sigmeta->status ) {
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strcpy( sigmeta->status, statusStr );
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sigmeta->status[strlen( statusStr )] = '\0';
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} else
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; /* nothing to do, is already 0 */
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/* Extended information for any number of signatures. */
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fpr = gpgme_get_sig_status( ctx, sig_idx, &status, &created );
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sigmeta->extended_info = 0;
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while( fpr != NULL ) {
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struct tm* ctime_val;
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const char* sig_status;
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void* alloc_return = realloc( sigmeta->extended_info,
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sizeof( struct SignatureMetaDataExtendedInfo )
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* ( sig_idx + 1 ) );
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if( alloc_return ) {
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sigmeta->extended_info = alloc_return;
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/* clear the data area */
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memset( &sigmeta->extended_info[sig_idx],
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0,
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sizeof (struct SignatureMetaDataExtendedInfo) );
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/* the creation time */
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sigmeta->extended_info[sig_idx].creation_time = malloc( sizeof( struct tm ) );
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if( sigmeta->extended_info[sig_idx].creation_time ) {
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ctime_val = localtime( &created );
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memcpy( sigmeta->extended_info[sig_idx].creation_time,
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ctime_val, sizeof( struct tm ) );
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}
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/* the extended signature verification status */
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sumGPGME = gpgme_get_sig_ulong_attr( ctx,
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sig_idx,
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GPGME_ATTR_SIG_SUMMARY,
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0 );
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fprintf( stderr, "gpgmeplug checkMessageSignature status flags: %lX\n", sumGPGME );
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// translate GPGME status flags to common CryptPlug status flags
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sumPlug = 0;
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if( sumGPGME & GPGME_SIGSUM_VALID ) sumPlug |= SigStat_VALID ;
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if( sumGPGME & GPGME_SIGSUM_GREEN ) sumPlug |= SigStat_GREEN ;
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if( sumGPGME & GPGME_SIGSUM_RED ) sumPlug |= SigStat_RED ;
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if( sumGPGME & GPGME_SIGSUM_KEY_REVOKED ) sumPlug |= SigStat_KEY_REVOKED;
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if( sumGPGME & GPGME_SIGSUM_KEY_EXPIRED ) sumPlug |= SigStat_KEY_EXPIRED;
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if( sumGPGME & GPGME_SIGSUM_SIG_EXPIRED ) sumPlug |= SigStat_SIG_EXPIRED;
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if( sumGPGME & GPGME_SIGSUM_KEY_MISSING ) sumPlug |= SigStat_KEY_MISSING;
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if( sumGPGME & GPGME_SIGSUM_CRL_MISSING ) sumPlug |= SigStat_CRL_MISSING;
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if( sumGPGME & GPGME_SIGSUM_CRL_TOO_OLD ) sumPlug |= SigStat_CRL_TOO_OLD;
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if( sumGPGME & GPGME_SIGSUM_BAD_POLICY ) sumPlug |= SigStat_BAD_POLICY ;
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if( sumGPGME & GPGME_SIGSUM_SYS_ERROR ) sumPlug |= SigStat_SYS_ERROR ;
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if( !sumPlug )
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sumPlug = SigStat_NUMERICAL_CODE | sumGPGME;
|
||||
sigmeta->extended_info[sig_idx].sigStatusFlags = sumPlug;
|
||||
|
||||
sigmeta->extended_info[sig_idx].validity = GPGME_VALIDITY_UNKNOWN;
|
||||
|
||||
err = gpgme_get_sig_key (ctx, sig_idx, &key);
|
||||
|
||||
if ( err == GPGME_No_Error) {
|
||||
const char* attr_string;
|
||||
unsigned long attr_ulong;
|
||||
|
||||
/* extract key identidy */
|
||||
attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_KEYID, 0, 0);
|
||||
if (attr_string != 0)
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].keyid, attr_string );
|
||||
|
||||
/* extract finger print */
|
||||
attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_FPR, 0, 0);
|
||||
if (attr_string != 0)
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].fingerprint,
|
||||
attr_string );
|
||||
|
||||
/* algorithms useable with this key */
|
||||
attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_ALGO, 0, 0);
|
||||
if (attr_string != 0)
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].algo,
|
||||
attr_string );
|
||||
attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_ALGO, 0, 0);
|
||||
sigmeta->extended_info[sig_idx].algo_num = attr_ulong;
|
||||
|
||||
/* extract key validity */
|
||||
attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_VALIDITY, 0, 0);
|
||||
sigmeta->extended_info[sig_idx].validity = attr_ulong;
|
||||
|
||||
/* extract user id, according to the documentation it's representable
|
||||
* as a number, but it seems that it also has a string representation
|
||||
*/
|
||||
attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_USERID, 0, 0);
|
||||
if (attr_string != 0) {
|
||||
a = parse_dn( attr_string );
|
||||
dn = reorder_dn( a );
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].userid,
|
||||
dn );
|
||||
}
|
||||
|
||||
attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_USERID, 0, 0);
|
||||
sigmeta->extended_info[sig_idx].userid_num = attr_ulong;
|
||||
|
||||
/* extract the length */
|
||||
attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_LEN, 0, 0);
|
||||
sigmeta->extended_info[sig_idx].keylen = attr_ulong;
|
||||
|
||||
/* extract the creation time of the key */
|
||||
attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_CREATED, 0, 0);
|
||||
sigmeta->extended_info[sig_idx].key_created = attr_ulong;
|
||||
|
||||
/* extract the expiration time of the key */
|
||||
attr_ulong = gpgme_key_get_ulong_attr(key, GPGME_ATTR_EXPIRE, 0, 0);
|
||||
sigmeta->extended_info[sig_idx].key_expires = attr_ulong;
|
||||
|
||||
/* extract user name */
|
||||
attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_NAME, 0, 0);
|
||||
if (attr_string != 0) {
|
||||
a = parse_dn( attr_string );
|
||||
dn = reorder_dn( a );
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].name,
|
||||
dn );
|
||||
}
|
||||
|
||||
/* extract email(s) */
|
||||
sigmeta->extended_info[sig_idx].emailCount = 0;
|
||||
sigmeta->extended_info[sig_idx].emailList = 0;
|
||||
for( UID_idx=0;
|
||||
(attr_string = gpgme_key_get_string_attr(key,
|
||||
GPGME_ATTR_EMAIL, 0, UID_idx));
|
||||
++UID_idx ){
|
||||
if (*attr_string) {
|
||||
fprintf( stderr, "gpgmeplug checkMessageSignature found email: %s\n", attr_string );
|
||||
if( sigmeta->extended_info[sig_idx].emailCount )
|
||||
alloc_return =
|
||||
malloc( sizeof( char*) );
|
||||
else
|
||||
alloc_return =
|
||||
realloc( sigmeta->extended_info[sig_idx].emailList,
|
||||
sizeof( char*)
|
||||
* (sigmeta->extended_info[sig_idx].emailCount + 1) );
|
||||
if( alloc_return ) {
|
||||
sigmeta->extended_info[sig_idx].emailList = alloc_return;
|
||||
storeNewCharPtr(
|
||||
&( sigmeta->extended_info[sig_idx].emailList[
|
||||
sigmeta->extended_info[sig_idx].emailCount ] ),
|
||||
attr_string );
|
||||
++sigmeta->extended_info[sig_idx].emailCount;
|
||||
}
|
||||
}
|
||||
}
|
||||
if( !sigmeta->extended_info[sig_idx].emailCount )
|
||||
fprintf( stderr, "gpgmeplug checkMessageSignature found NO EMAIL\n" );
|
||||
|
||||
/* extract the comment */
|
||||
attr_string = gpgme_key_get_string_attr(key, GPGME_ATTR_COMMENT, 0, 0);
|
||||
if (attr_string != 0)
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].comment,
|
||||
attr_string );
|
||||
}
|
||||
else
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].fingerprint, fpr );
|
||||
|
||||
sig_status = sig_status_to_string( status );
|
||||
storeNewCharPtr( &sigmeta->extended_info[sig_idx].status_text,
|
||||
sig_status );
|
||||
|
||||
} else
|
||||
break; /* if allocation fails once, it isn't likely to
|
||||
succeed the next time either */
|
||||
|
||||
fpr = gpgme_get_sig_status (ctx, ++sig_idx, &status, &created);
|
||||
}
|
||||
sigmeta->extended_info_count = sig_idx;
|
||||
sigmeta->nota_xml = gpgme_get_notation( ctx );
|
||||
sigmeta->status_code = status;
|
||||
|
||||
gpgme_release( ctx );
|
||||
return ( status == GPGME_SIG_STAT_GOOD );
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user