diff options
Diffstat (limited to '')
| -rw-r--r-- | src/gpgme-json.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/gpgme-json.c b/src/gpgme-json.c index f1a857d4..e8858064 100644 --- a/src/gpgme-json.c +++ b/src/gpgme-json.c @@ -1174,6 +1174,182 @@ op_decrypt (cjson_t request, cjson_t result) +static const char hlp_sign[] = + "op: \"sign\"\n" + "keys: Array of strings with the fingerprints of the signing key.\n" + " For a single key a String may be used instead of an array.\n" + "data: Input data. \n" + "\n" + "Optional parameters:\n" + "protocol: Either \"openpgp\" (default) or \"cms\".\n" + "chunksize: Max number of bytes in the resulting \"data\".\n" + "sender: The mail address of the sender.\n" + "mode: A string with the signing mode can be:\n" + " detached (default)\n" + " opaque\n" + " clearsign\n" + "\n" + "Optional boolean flags (default is false):\n" + "base64: Input data is base64 encoded.\n" + "armor: Request output in armored format.\n" + "\n" + "Response on success:\n" + "type: \"signature\"\n" + "data: Unless armor mode is used a Base64 encoded binary\n" + " signature. In armor mode a string with an armored\n" + " OpenPGP or a PEM message.\n" + "base64: Boolean indicating whether data is base64 encoded.\n" + "more: Optional boolean indicating that \"getmore\" is required."; +static gpg_error_t +op_sign (cjson_t request, cjson_t result) +{ + gpg_error_t err; + gpgme_ctx_t ctx = NULL; + gpgme_protocol_t protocol; + size_t chunksize; + int opt_base64; + char *keystring = NULL; + cjson_t j_input; + gpgme_data_t input = NULL; + gpgme_data_t output = NULL; + int abool; + cjson_t j_tmp; + gpgme_sig_mode_t mode = GPGME_SIG_MODE_DETACH; + gpgme_ctx_t keylist_ctx = NULL; + gpgme_key_t key = NULL; + + if ((err = get_protocol (request, &protocol))) + goto leave; + ctx = get_context (protocol); + if ((err = get_chunksize (request, &chunksize))) + goto leave; + + if ((err = get_boolean_flag (request, "base64", 0, &opt_base64))) + goto leave; + + if ((err = get_boolean_flag (request, "armor", 0, &abool))) + goto leave; + gpgme_set_armor (ctx, abool); + + j_tmp = cJSON_GetObjectItem (request, "mode"); + if (j_tmp && cjson_is_string (j_tmp)) + { + if (!strcmp (j_tmp->valuestring, "opaque")) + { + mode = GPGME_SIG_MODE_NORMAL; + } + else if (!strcmp (j_tmp->valuestring, "clearsign")) + { + mode = GPGME_SIG_MODE_CLEAR; + } + } + + j_tmp = cJSON_GetObjectItem (request, "sender"); + if (j_tmp && cjson_is_string (j_tmp)) + { + gpgme_set_sender (ctx, j_tmp->valuestring); + } + + /* Get the keys. */ + err = get_keys (request, &keystring); + if (err) + { + /* Provide a custom error response. */ + error_object (result, "Error getting keys: %s", gpg_strerror (err)); + goto leave; + } + + /* Do a keylisting and add the keys */ + if ((err = gpgme_new (&keylist_ctx))) + goto leave; + gpgme_set_protocol (keylist_ctx, protocol); + gpgme_set_keylist_mode (keylist_ctx, GPGME_KEYLIST_MODE_LOCAL); + + err = gpgme_op_keylist_start (ctx, keystring, 1); + if (err) + { + error_object (result, "Error listing keys: %s", gpg_strerror (err)); + goto leave; + } + while (!(err = gpgme_op_keylist_next (ctx, &key))) + { + if ((err = gpgme_signers_add (ctx, key))) + { + error_object (result, "Error adding signer: %s", gpg_strerror (err)); + goto leave; + } + gpgme_key_unref (key); + } + + /* Get the data. Note that INPUT is a shallow data object with the + * storage hold in REQUEST. */ + j_input = cJSON_GetObjectItem (request, "data"); + if (!j_input) + { + err = gpg_error (GPG_ERR_NO_DATA); + goto leave; + } + if (!cjson_is_string (j_input)) + { + err = gpg_error (GPG_ERR_INV_VALUE); + goto leave; + } + if (opt_base64) + { + err = data_from_base64_string (&input, j_input); + if (err) + { + error_object (result, "Error decoding Base-64 encoded 'data': %s", + gpg_strerror (err)); + goto leave; + } + } + else + { + err = gpgme_data_new_from_mem (&input, j_input->valuestring, + strlen (j_input->valuestring), 0); + if (err) + { + error_object (result, "Error getting 'data': %s", gpg_strerror (err)); + goto leave; + } + } + + /* Create an output data object. */ + err = gpgme_data_new (&output); + if (err) + { + error_object (result, "Error creating output data object: %s", + gpg_strerror (err)); + goto leave; + } + + /* Sign. */ + err = gpgme_op_sign (ctx, input, output, mode); + if (err) + { + error_object (result, "Signing failed: %s", gpg_strerror (err)); + goto leave; + } + + gpgme_data_release (input); + input = NULL; + + /* We need to base64 if armoring has not been requested. */ + err = make_data_object (result, output, chunksize, + "ciphertext", !gpgme_get_armor (ctx)); + output = NULL; + + leave: + xfree (keystring); + release_context (ctx); + release_context (keylist_ctx); + gpgme_data_release (input); + gpgme_data_release (output); + return err; +} + + static const char hlp_getmore[] = "op: \"getmore\"\n" "\n" @@ -1309,6 +1485,7 @@ process_request (const char *request) } optbl[] = { { "encrypt", op_encrypt, hlp_encrypt }, { "decrypt", op_decrypt, hlp_decrypt }, + { "sign", op_sign, hlp_sign }, { "getmore", op_getmore, hlp_getmore }, { "help", op_help, hlp_help }, { NULL } |