void GPGWrapper::init()
{
if (initialized)
return;
initialized = true;
gpgme_check_version(NULL);
setlocale(LC_ALL, "");
gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL));
#ifdef LC_MESSAGES
gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL));
#endif
gpgme_error_t error = gpgme_new(&context);
fail_if_err(error, L"Nie uda³o siê zainicjowaæ kontekstu GPG.");
gpgme_set_textmode(context, 1);
gpgme_set_armor(context, 1);
error = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
fail_if_err(error, L"Nie zainstalowano OpenPGP.");
error = gpgme_set_protocol(context, GPGME_PROTOCOL_OpenPGP);
fail_if_err(error, L"Nie uda³o siê ustawiæ OpenPGP.");
privateKey = getPrivateKey(privateKeyId.c_str());
error = gpgme_signers_add(context, privateKey);
fail_if_err(error, L"Nie uda³o siê ustawiæ klucza prywatnego.");
}
QalfCrypto::QalfCrypto() {
gpgme_error_t result = gpgme_new(&context) ;
Q_ASSERT(result == GPG_ERR_NO_ERROR) ;
result = gpgme_set_protocol(context,GPGME_PROTOCOL_OpenPGP) ;
Q_ASSERT(result == GPG_ERR_NO_ERROR) ;
gpgme_set_armor(context,1) ;
gpgme_set_textmode(context,1) ;
}
/**
* seahorse_service_crypto_sign_text:
* @crypto: SeahorseServiceCrypto
* @signer: the signer keyid
* @flags: 0 (ignored)
* @cleartext: the text to sign
* @crypttext: the clear text signature (out) (GPGME_SIG_MODE_CLEAR)
* @error: an error to return
*
* DBus: SignText
*
* Signs the @cleartext and returns the signature in @crypttext
*
* Returns: TRUE on success
*/
gboolean
seahorse_service_crypto_sign_text (SeahorseServiceCrypto *crypto, const char *signer,
int flags, const char *cleartext, char **crypttext,
GError **error)
{
SeahorseObject *signkey = NULL;
gpgme_error_t gerr;
SeahorseGpgmeOperation *pop;
gpgme_data_t plain, cipher;
gboolean ret = TRUE;
/*
* TODO: Once we support different kinds of keys that support encryption
* then all this logic will need to change.
*/
/* The signer */
if (!signer || !signer[0])
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("No signer specified"));
signkey = seahorse_context_object_from_dbus (SCTX_APP (), signer);
if (!signkey) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Invalid or unrecognized signer: %s"), signer);
return FALSE;
}
if (!SEAHORSE_IS_GPGME_KEY (signkey) ||
!(seahorse_object_get_flags (signkey) & SEAHORSE_FLAG_CAN_SIGN)) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Key is not valid for signing: %s"), signer);
return FALSE;
}
pop = seahorse_gpgme_operation_new (NULL);
/* new data from text */
gerr = gpgme_data_new_from_mem (&plain, cleartext, strlen (cleartext), FALSE);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
gerr = gpgme_data_new (&cipher);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
/* encrypt with armor */
gpgme_set_textmode (pop->gctx, TRUE);
gpgme_set_armor (pop->gctx, TRUE);
/* Do the signage */
gpgme_signers_add (pop->gctx, seahorse_gpgme_key_get_private (SEAHORSE_GPGME_KEY (signkey)));
gerr = gpgme_op_sign_start (pop->gctx, plain, cipher, GPGME_SIG_MODE_CLEAR);
/* Frees cipher */
ret = process_crypto_result (pop, gerr, cipher, crypttext, NULL, error);
g_object_unref (pop);
gpgme_data_release (plain);
return ret;
}
static gboolean
encrypt_sign_start (SeahorseToolMode *mode, const gchar *uri, gpgme_data_t uridata,
SeahorsePGPOperation *pop, GError **err)
{
gpgme_data_t cipher;
gpgme_error_t gerr;
gchar *touri;
g_assert (mode->recipients && mode->recipients[0]);
/* File to encrypt to */
touri = seahorse_util_add_suffix (uri, SEAHORSE_CRYPT_SUFFIX,
_("Choose Encrypted File Name for '%s'"));
if (!touri)
return FALSE;
/* Open necessary files, release these with the operation */
cipher = seahorse_vfs_data_create (touri, SEAHORSE_VFS_WRITE | SEAHORSE_VFS_DELAY, err);
g_free (touri);
if (!cipher)
return FALSE;
g_object_set_data_full (G_OBJECT (pop), "cipher-data", cipher,
(GDestroyNotify)gpgme_data_release);
gpgme_set_armor (pop->gctx, seahorse_gconf_get_boolean (ARMOR_KEY));
gpgme_set_textmode (pop->gctx, FALSE);
/* Start actual encryption */
gpgme_signers_clear (pop->gctx);
if (mode->signer) {
gpgme_signers_add (pop->gctx, mode->signer);
gerr = gpgme_op_encrypt_sign_start (pop->gctx, mode->recipients,
GPGME_ENCRYPT_ALWAYS_TRUST, uridata, cipher);
} else {
gerr = gpgme_op_encrypt_start (pop->gctx, mode->recipients,
GPGME_ENCRYPT_ALWAYS_TRUST, uridata, cipher);
}
if (gerr != 0) {
seahorse_util_gpgme_to_error (gerr, err);
return FALSE;
}
return TRUE;
}
static int
pygpgme_context_set_textmode(PyGpgmeContext *self, PyObject *value)
{
int textmode;
if (value == NULL) {
PyErr_SetString(PyExc_AttributeError, "Can not delete attribute");
return -1;
}
textmode = PyInt_AsLong(value) != 0;
if (PyErr_Occurred())
return -1;
gpgme_set_textmode(self->ctx, textmode);
return 0;
}
int
main (int argc, char *argv[])
{
gpgme_ctx_t ctx;
gpgme_error_t err;
gpgme_data_t in, out;
gpgme_sign_result_t result;
init_gpgme (GPGME_PROTOCOL_CMS);
err = gpgme_new (&ctx);
fail_if_err (err);
gpgme_set_protocol (ctx, GPGME_PROTOCOL_CMS);
gpgme_set_textmode (ctx, 1);
gpgme_set_armor (ctx, 1);
err = gpgme_data_new_from_mem (&in, "Hallo Leute!\n", 13, 0);
fail_if_err (err);
/* First a normal signature. */
err = gpgme_data_new (&out);
fail_if_err (err);
err = gpgme_op_sign (ctx, in, out, GPGME_SIG_MODE_NORMAL);
fail_if_err (err);
result = gpgme_op_sign_result (ctx);
check_result (result, GPGME_SIG_MODE_NORMAL);
print_data (out);
gpgme_data_release (out);
/* Now a detached signature. */
gpgme_data_seek (in, 0, SEEK_SET);
err = gpgme_data_new (&out);
fail_if_err (err);
err = gpgme_op_sign (ctx, in, out, GPGME_SIG_MODE_DETACH);
fail_if_err (err);
result = gpgme_op_sign_result (ctx);
check_result (result, GPGME_SIG_MODE_DETACH);
print_data (out);
gpgme_data_release (out);
gpgme_data_release (in);
gpgme_release (ctx);
return 0;
}
/* #############################################################################
*
* Description encrypt the given buffer and return the encrypted data with
* an updated size information
* Author Harry Brueckner
* Date 2005-03-31
* Arguments char* buffer - buffer to encrypt
* int size - size of the buffer
* char** newbuffer - pointer to the new buffer which holds the
* encrypted data
* int* newsize - size of the returned buffer
* PASSPHRASE_FN password_cb - callback function pointer used
* to get the current passphrase
* SHOWERROR_FN showerror_cb - callback function pointer used
* to display errors
* Return 0 if ok, otherwise 1
*/
int gpgEncrypt(char* buffer, int size, char** newbuffer, int* newsize,
PASSPHRASE_FN password_cb, SHOWERROR_FN showerror_cb)
{
gpgme_ctx_t context;
gpgme_data_t input,
output;
gpgme_encrypt_result_t result;
gpgme_error_t error;
gpgme_key_t* key = NULL;
gpgme_key_t tkey = NULL;
gpgme_sign_result_t sign_result;
int i,
keys = 0,
showerror = 1;
char* agent;
char* fpr;
char* tmpbuffer = NULL;
TRACE(99, "gpgEncrypt()", NULL);
/* we set our passphrase callback function */
passphrase_callback = password_cb;
/* we initialize the external size data */
newsize[0] = 0;
error = gpgme_new(&context);
if (!error)
{
gpgme_set_textmode(context, 1);
gpgme_set_armor(context, 1);
/* Flawfinder: ignore */
agent = getenv("GPG_AGENT_INFO");
if (!(agent && strchr(agent, ':')))
{
retries = 0;
gpgme_set_passphrase_cb(context, gpgRequestPassphrase, NULL);
}
}
if (!error)
{ error = gpgme_data_new_from_mem(&input, buffer, size, 0); }
if (!error)
{ error = gpgme_data_new(&output); }
if (!error)
{ gpgme_signers_clear(context); }
if (!error)
{
/* allocate the keys */
keys = keyCount();
key = memAlloc(__FILE__, __LINE__, sizeof(gpgme_key_t) * (keys + 1));
key[keys] = NULL;
signers = 0;
for (i = 0; i < keys && !error; i++)
{ /* add all keys */
fpr = gpgGetFingerprint(keyGet(i), LIST_SECRET);
if (fpr)
{
error = gpgme_get_key(context, fpr, &tkey, LIST_SECRET);
if (tkey -> secret);
{
error = gpgme_signers_add(context, tkey);
signers++;
}
memFreeString(__FILE__, __LINE__, fpr);
}
fpr = gpgGetFingerprint(keyGet(i), LIST_ALL);
if (fpr)
{
error = gpgme_get_key(context, fpr, &key[i], LIST_ALL);
memFreeString(__FILE__, __LINE__, fpr);
}
}
}
if (signers > 1)
{ /* as soon as we get two signers, we must no longer cache anything */
config -> keeppassphrase = 0;
clearPassphrase(1);
}
/* encrypt and sign the data */
if (!error)
{
error = gpgme_op_encrypt_sign(context, key, GPGME_ENCRYPT_ALWAYS_TRUST,
input, output);
}
/* we don't need the passphrase any longer */
clearPassphrase(0);
if (!error)
{ result = gpgme_op_encrypt_result(context); }
if (!error &&
result -> invalid_recipients)
{
tmpbuffer = memAlloc(__FILE__, __LINE__, STDBUFFERLENGTH);
snprintf(tmpbuffer, STDBUFFERLENGTH,
_("Invalid recipient encountered: %s"),
result -> invalid_recipients -> fpr);
(showerror_cb)(_("GpgMe error"), tmpbuffer);
memFree(__FILE__, __LINE__, tmpbuffer, STDBUFFERLENGTH);
showerror = 0;
error = 1;
}
if (!error)
{
sign_result = gpgme_op_sign_result(context);
error = gpgCheckSignResult(showerror_cb, sign_result,
GPGME_SIG_MODE_NORMAL);
showerror = !error;
}
if (!error)
{ tmpbuffer = gpgData2Char(output, newsize); }
/* free the keys again */
i = 0;
while (key && keys && key[i])
{ gpgme_key_unref(key[i++]); }
memFree(__FILE__, __LINE__, key, sizeof(gpgme_key_t) * (keys + 1));
gpgme_data_release(input);
gpgme_data_release(output);
gpgme_release(context);
*newbuffer = tmpbuffer;
if (error)
{
if (showerror)
{ (showerror_cb)(_("GpgMe encrypt error"), gpgme_strerror(error)); }
return 1;
}
else
return 0;
}
static gboolean pgpinline_sign(MimeInfo *mimeinfo, PrefsAccount *account, const gchar *from_addr)
{
MimeInfo *msgcontent;
gchar *textstr, *tmp;
FILE *fp;
gchar *sigcontent;
gpgme_ctx_t ctx;
gpgme_data_t gpgtext, gpgsig;
size_t len;
gpgme_error_t err;
struct passphrase_cb_info_s info;
gpgme_sign_result_t result = NULL;
memset (&info, 0, sizeof info);
/* get content node from message */
msgcontent = (MimeInfo *) mimeinfo->node->children->data;
if (msgcontent->type == MIMETYPE_MULTIPART) {
if (!msgcontent->node->children) {
debug_print("msgcontent->node->children NULL, bailing\n");
privacy_set_error(_("Malformed message"));
return FALSE;
}
msgcontent = (MimeInfo *) msgcontent->node->children->data;
}
/* get rid of quoted-printable or anything */
procmime_decode_content(msgcontent);
fp = my_tmpfile();
if (fp == NULL) {
perror("my_tmpfile");
privacy_set_error(_("Couldn't create temporary file."));
return FALSE;
}
procmime_write_mimeinfo(msgcontent, fp);
rewind(fp);
/* read temporary file into memory */
textstr = fp_read_noconv(fp);
fclose(fp);
gpgme_data_new_from_mem(&gpgtext, textstr, (size_t)strlen(textstr), 0);
gpgme_data_new(&gpgsig);
if ((err = gpgme_new(&ctx)) != GPG_ERR_NO_ERROR) {
debug_print(("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
privacy_set_error(_("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
return FALSE;
}
gpgme_set_textmode(ctx, 1);
gpgme_set_armor(ctx, 1);
if (!sgpgme_setup_signers(ctx, account, from_addr)) {
gpgme_release(ctx);
return FALSE;
}
prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
if (!getenv("GPG_AGENT_INFO") || !prefs_gpg_get_config()->use_gpg_agent) {
info.c = ctx;
gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
}
err = gpgme_op_sign(ctx, gpgtext, gpgsig, GPGME_SIG_MODE_CLEAR);
if (err != GPG_ERR_NO_ERROR) {
if (err == GPG_ERR_CANCELED) {
/* ignore cancelled signing */
privacy_reset_error();
debug_print("gpgme_op_sign cancelled\n");
} else {
privacy_set_error(_("Data signing failed, %s"), gpgme_strerror(err));
debug_print("gpgme_op_sign error : %x\n", err);
}
gpgme_release(ctx);
return FALSE;
}
result = gpgme_op_sign_result(ctx);
if (result && result->signatures) {
gpgme_new_signature_t sig = result->signatures;
while (sig) {
debug_print("valid signature: %s\n", sig->fpr);
sig = sig->next;
}
} else if (result && result->invalid_signers) {
gpgme_invalid_key_t invalid = result->invalid_signers;
while (invalid) {
g_warning("invalid signer: %s (%s)", invalid->fpr,
gpgme_strerror(invalid->reason));
privacy_set_error(_("Data signing failed due to invalid signer: %s"),
gpgme_strerror(invalid->reason));
invalid = invalid->next;
}
gpgme_release(ctx);
return FALSE;
} else {
/* can't get result (maybe no signing key?) */
debug_print("gpgme_op_sign_result error\n");
privacy_set_error(_("Data signing failed, no results."));
gpgme_release(ctx);
return FALSE;
}
sigcontent = sgpgme_data_release_and_get_mem(gpgsig, &len);
if (sigcontent == NULL || len <= 0) {
g_warning("sgpgme_data_release_and_get_mem failed");
privacy_set_error(_("Data signing failed, no contents."));
gpgme_data_release(gpgtext);
g_free(textstr);
g_free(sigcontent);
gpgme_release(ctx);
return FALSE;
}
tmp = g_malloc(len+1);
g_memmove(tmp, sigcontent, len+1);
tmp[len] = '\0';
gpgme_data_release(gpgtext);
g_free(textstr);
g_free(sigcontent);
if (msgcontent->content == MIMECONTENT_FILE &&
msgcontent->data.filename != NULL) {
if (msgcontent->tmp == TRUE)
claws_unlink(msgcontent->data.filename);
g_free(msgcontent->data.filename);
}
msgcontent->data.mem = g_strdup(tmp);
msgcontent->content = MIMECONTENT_MEM;
g_free(tmp);
/* avoid all sorts of clear-signing problems with non ascii
* chars
*/
procmime_encode_content(msgcontent, ENC_BASE64);
gpgme_release(ctx);
return TRUE;
}
static MimeInfo *pgpinline_decrypt(MimeInfo *mimeinfo)
{
MimeInfo *decinfo, *parseinfo;
gpgme_data_t cipher, plain;
FILE *dstfp;
gchar *fname;
gchar *textdata = NULL;
static gint id = 0;
const gchar *src_codeset = NULL;
gpgme_verify_result_t sigstat = 0;
PrivacyDataPGP *data = NULL;
gpgme_ctx_t ctx;
gchar *chars;
size_t len;
const gchar *begin_indicator = "-----BEGIN PGP MESSAGE-----";
const gchar *end_indicator = "-----END PGP MESSAGE-----";
gchar *pos;
if (gpgme_new(&ctx) != GPG_ERR_NO_ERROR)
return NULL;
gpgme_set_textmode(ctx, 1);
gpgme_set_armor(ctx, 1);
cm_return_val_if_fail(mimeinfo != NULL, NULL);
cm_return_val_if_fail(pgpinline_is_encrypted(mimeinfo), NULL);
if (procmime_mimeinfo_parent(mimeinfo) == NULL ||
mimeinfo->type != MIMETYPE_TEXT) {
gpgme_release(ctx);
privacy_set_error(_("Couldn't parse mime part."));
return NULL;
}
textdata = get_part_as_string(mimeinfo);
if (!textdata) {
gpgme_release(ctx);
privacy_set_error(_("Couldn't get text data."));
return NULL;
}
debug_print("decrypting '%s'\n", textdata);
gpgme_data_new_from_mem(&cipher, textdata, (size_t)strlen(textdata), 1);
plain = sgpgme_decrypt_verify(cipher, &sigstat, ctx);
if (sigstat && !sigstat->signatures)
sigstat = NULL;
gpgme_data_release(cipher);
if (plain == NULL) {
gpgme_release(ctx);
return NULL;
}
fname = g_strdup_printf("%s%cplaintext.%08x",
get_mime_tmp_dir(), G_DIR_SEPARATOR, ++id);
if ((dstfp = g_fopen(fname, "wb")) == NULL) {
FILE_OP_ERROR(fname, "fopen");
privacy_set_error(_("Couldn't open decrypted file %s"), fname);
g_free(fname);
gpgme_data_release(plain);
gpgme_release(ctx);
return NULL;
}
src_codeset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
if (src_codeset == NULL)
src_codeset = CS_ISO_8859_1;
if (fprintf(dstfp, "MIME-Version: 1.0\r\n"
"Content-Type: text/plain; charset=%s\r\n"
"Content-Transfer-Encoding: 8bit\r\n"
"\r\n",
src_codeset) < 0) {
FILE_OP_ERROR(fname, "fprintf");
privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
goto FILE_ERROR;
}
/* Store any part before encrypted text */
pos = pgp_locate_armor_header(textdata, begin_indicator);
if (pos != NULL && (pos - textdata) > 0) {
if (fwrite(textdata, 1, pos - textdata, dstfp) < pos - textdata) {
FILE_OP_ERROR(fname, "fwrite");
privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
goto FILE_ERROR;
}
}
if (fwrite(_("\n--- Start of PGP/Inline encrypted data ---\n"), 1,
strlen(_("\n--- Start of PGP/Inline encrypted data ---\n")),
dstfp) < strlen(_("\n--- Start of PGP/Inline encrypted data ---\n"))) {
FILE_OP_ERROR(fname, "fwrite");
privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
goto FILE_ERROR;
}
chars = sgpgme_data_release_and_get_mem(plain, &len);
if (len > 0) {
if (fwrite(chars, 1, len, dstfp) < len) {
FILE_OP_ERROR(fname, "fwrite");
g_free(chars);
privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
goto FILE_ERROR;
}
}
g_free(chars);
/* Store any part after encrypted text */
if (fwrite(_("--- End of PGP/Inline encrypted data ---\n"), 1,
strlen(_("--- End of PGP/Inline encrypted data ---\n")),
dstfp) < strlen(_("--- End of PGP/Inline encrypted data ---\n"))) {
FILE_OP_ERROR(fname, "fwrite");
privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
goto FILE_ERROR;
}
if (pos != NULL) {
pos = pgp_locate_armor_header(pos, end_indicator);
if (pos != NULL && *pos != '\0') {
pos += strlen(end_indicator);
if (fwrite(pos, 1, strlen(pos), dstfp) < strlen(pos)) {
FILE_OP_ERROR(fname, "fwrite");
privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
goto FILE_ERROR;
}
}
}
if (fclose(dstfp) == EOF) {
FILE_OP_ERROR(fname, "fclose");
privacy_set_error(_("Couldn't close decrypted file %s"), fname);
g_free(fname);
gpgme_data_release(plain);
gpgme_release(ctx);
return NULL;
}
parseinfo = procmime_scan_file(fname);
g_free(fname);
if (parseinfo == NULL) {
gpgme_release(ctx);
privacy_set_error(_("Couldn't scan decrypted file."));
return NULL;
}
decinfo = g_node_first_child(parseinfo->node) != NULL ?
g_node_first_child(parseinfo->node)->data : NULL;
if (decinfo == NULL) {
gpgme_release(ctx);
privacy_set_error(_("Couldn't scan decrypted file parts."));
return NULL;
}
g_node_unlink(decinfo->node);
procmime_mimeinfo_free_all(parseinfo);
decinfo->tmp = TRUE;
if (sigstat != GPGME_SIG_STAT_NONE) {
if (decinfo->privacy != NULL) {
data = (PrivacyDataPGP *) decinfo->privacy;
} else {
data = pgpinline_new_privacydata();
decinfo->privacy = (PrivacyData *) data;
}
if (data != NULL) {
data->done_sigtest = TRUE;
data->is_signed = TRUE;
data->sigstatus = sigstat;
if (data->ctx)
gpgme_release(data->ctx);
data->ctx = ctx;
}
} else
gpgme_release(ctx);
return decinfo;
FILE_ERROR:
fclose(dstfp);
g_free(fname);
gpgme_data_release(plain);
gpgme_release(ctx);
return NULL;
}
static gint pgpinline_check_signature(MimeInfo *mimeinfo)
{
PrivacyDataPGP *data = NULL;
gchar *textdata = NULL, *tmp = NULL;
gpgme_data_t plain = NULL, cipher = NULL;
gpgme_error_t err;
cm_return_val_if_fail(mimeinfo != NULL, 0);
if (procmime_mimeinfo_parent(mimeinfo) == NULL) {
privacy_set_error(_("Incorrect part"));
return 0; /* not parent */
}
if (mimeinfo->type != MIMETYPE_TEXT) {
privacy_set_error(_("Not a text part"));
debug_print("type %d\n", mimeinfo->type);
return 0;
}
cm_return_val_if_fail(mimeinfo->privacy != NULL, 0);
data = (PrivacyDataPGP *) mimeinfo->privacy;
textdata = get_part_as_string(mimeinfo);
if (!textdata) {
g_free(textdata);
privacy_set_error(_("Couldn't get text data."));
return 0;
}
/* gtk2: convert back from utf8 */
tmp = conv_codeset_strdup(textdata, CS_UTF_8,
procmime_mimeinfo_get_parameter(mimeinfo, "charset"));
if (!tmp) {
tmp = conv_codeset_strdup(textdata, CS_UTF_8,
conv_get_locale_charset_str_no_utf8());
}
if (!tmp) {
g_warning("Can't convert charset to anything sane");
tmp = conv_codeset_strdup(textdata, CS_UTF_8, CS_US_ASCII);
}
g_free(textdata);
if (!tmp) {
privacy_set_error(_("Couldn't convert text data to any sane charset."));
return 0;
}
textdata = g_strdup(tmp);
g_free(tmp);
if ((err = gpgme_new(&data->ctx)) != GPG_ERR_NO_ERROR) {
debug_print(("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
privacy_set_error(_("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
g_free(textdata);
return 0;
}
gpgme_set_textmode(data->ctx, 1);
gpgme_set_armor(data->ctx, 1);
gpgme_data_new_from_mem(&plain, textdata, (size_t)strlen(textdata), 1);
gpgme_data_new(&cipher);
data->sigstatus = sgpgme_verify_signature(data->ctx, plain, NULL, cipher);
gpgme_data_release(plain);
gpgme_data_release(cipher);
g_free(textdata);
return 0;
}
QString QalfCrypto::sign(QString &message, QString &key) {
gpgme_key_t gpgkey ;
gpgme_data_t signature ;
gpgme_data_t msg ;
gpgme_verify_result_t verification ;
gpgme_signature_t signatures ;
gpgme_error_t result ;
char * buffer ;
gpgme_set_passphrase_cb(context,&passphrase_callback,NULL) ;
result = gpgme_set_protocol(context,GPGME_PROTOCOL_OpenPGP) ;
Q_ASSERT(gpgme_err_code(result) == GPG_ERR_NO_ERROR) ;
gpgme_set_armor(context,1) ;
gpgme_set_textmode(context,1) ;
gpgme_signers_clear(context) ;
result = gpgme_set_keylist_mode(context,GPGME_KEYLIST_MODE_LOCAL) ;
// retrieving key
result = gpgme_get_key(context, key.toAscii().data(),&gpgkey,1) ;
Q_ASSERT(result == GPG_ERR_NO_ERROR) ;
Q_ASSERT(gpgkey != 0) ;
// signing
result = gpgme_signers_add(context,gpgkey) ;
Q_ASSERT(result == GPG_ERR_NO_ERROR) ;
result = gpgme_data_new(&signature);
Q_ASSERT(result == GPG_ERR_NO_ERROR) ;
int message_length = message.toAscii().size() ;
char * message_char = (char *) calloc(message_length+1,sizeof(char)) ;
memcpy(message_char,message.toAscii().data(),message_length) ;
// printf("memcmp : %d\n",memcmp(message_char,"1fc36e1d41a93c1d79f6872198f426129320d287",message_length+1)) ;
result = gpgme_data_new_from_mem(&msg,message_char,message_length,0) ;
gpgme_data_seek(signature,0,SEEK_SET) ;
gpgme_data_seek(msg,0,SEEK_SET) ;
result = gpgme_op_sign(context, msg,signature, GPGME_SIG_MODE_DETACH) ;
Q_ASSERT(gpgme_err_code(result) == GPG_ERR_NO_ERROR || gpgme_err_code(result) == GPG_ERR_BAD_PASSPHRASE || gpgme_err_code(result) == GPG_ERR_CANCELED) ;
// gpgme_data_seek(signature,0,SEEK_SET) ;
// gpgme_data_seek(msg,0,SEEK_SET) ;
//
// result = gpgme_op_verify (context, signature, msg , 0) ;
// Q_ASSERT(gpgme_err_code(result) != GPG_ERR_INV_VALUE) ;
// Q_ASSERT(gpgme_err_code(result) != GPG_ERR_NO_DATA) ;
// Q_ASSERT(result == GPG_ERR_NO_ERROR) ;
//
// verification = gpgme_op_verify_result(context) ;
// Q_ASSERT(verification != 0) ;
//
// signatures = verification->signatures ;
// Q_ASSERT(verification->signatures != 0) ;
// result = signatures->status ;
// printf("status : %d\n",gpgme_err_code(result)) ;
// printf("signature summary : %d\n",signatures->summary) ;
// Q_ASSERT(signatures->summary == GPGME_SIGSUM_VALID | GPGME_SIGSUM_GREEN) ;
//
QString signatureStr ;
buffer = (char *) calloc(2048,sizeof(char)) ;
gpgme_data_seek(signature,0,SEEK_SET) ;
gpgme_data_read(signature,buffer,2048) ;
signatureStr += buffer ;
qDebug() << "signature" << signatureStr ;
gpgme_data_release(signature) ;
gpgme_key_unref(gpgkey) ;
gpgme_data_release(msg) ;
return signatureStr ;
}
/**
* seahorse_service_crypto_verify_text:
* @crypto: #SeahorseServiceCrypto context
* @ktype: "openpgp"
* @flags: FLAG_QUIET for no notification
* @crypttext: the text to decrypt
* @cleartext: the plaintext after verification (out)
* @signer: the signer if the text is signed (out)
* @error: a potential error (out)
*
* DBus: VerifyText
*
* Decrypts the @crypttext and returns it in @cleartext. If the text
* was signed, the signed is returned.
*
* Returns: TRUE on success
*/
gboolean
seahorse_service_crypto_verify_text (SeahorseServiceCrypto *crypto,
const gchar *ktype, int flags,
const gchar *crypttext, gchar **cleartext,
char **signer, GError **error)
{
gpgme_verify_result_t status;
gpgme_error_t gerr;
SeahorseGpgmeOperation *pop;
gpgme_data_t plain, cipher;
gboolean ret = TRUE;
GQuark keyid;
if (!g_str_equal (ktype, g_quark_to_string (SEAHORSE_PGP))) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Invalid key type for verifying: %s"), ktype);
return FALSE;
}
/*
* TODO: Once we support different kinds of keys that support encryption
* then all this logic will need to change.
*/
pop = seahorse_gpgme_operation_new (NULL);
/* new data from text */
gerr = gpgme_data_new_from_mem (&cipher, crypttext, strlen (crypttext), FALSE);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
gerr = gpgme_data_new (&plain);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
/* encrypt with armor */
gpgme_set_textmode (pop->gctx, TRUE);
gpgme_set_armor (pop->gctx, TRUE);
/* Do the decryption */
gerr = gpgme_op_verify_start (pop->gctx, cipher, NULL, plain);
/* Frees plain */
ret = process_crypto_result (pop, gerr, plain, cleartext, NULL, error);
if (ret) {
*signer = NULL;
status = gpgme_op_verify_result (pop->gctx);
if (status->signatures) {
if (!(flags & FLAG_QUIET))
notify_signatures (NULL, status);
if (status->signatures->summary & GPGME_SIGSUM_GREEN ||
status->signatures->summary & GPGME_SIGSUM_VALID ||
status->signatures->summary & GPGME_SIGSUM_KEY_MISSING) {
keyid = seahorse_pgp_key_canonize_id (status->signatures->fpr);
*signer = seahorse_context_id_to_dbus (SCTX_APP (), keyid);
}
}
}
g_object_unref (pop);
gpgme_data_release (cipher);
return TRUE;
}
/**
* crypto: the crypto service (#SeahorseServiceCrypto)
* recipients: A list of recipients (keyids "openpgp:B8098FB063E2C811")
* Must be empty when symmetric encryption is used.
* signer: optional, the keyid of the signer
* flags: FLAG_SYMMETRIC to perform symmetric encryption
* cleartext: the text to encrypt
* clearlength: Length of the cleartext
* crypttext: the encrypted text (out)
* cryptlength: the length of this text (out)
* textmode: TRUE if gpgme should use textmode
* ascii_armor: TRUE if GPGME should use ascii armor
* error: The Error
*
* Handles encryption in a generic way. Can be used by several DBus APIs
*
* Returns TRUE on success
**/
static gboolean
crypto_encrypt_generic (SeahorseServiceCrypto *crypto,
const char **recipients, const char *signer,
int flags, const char *cleartext, gsize clearlength,
char **crypttext, gsize *cryptlength, gboolean textmode,
gboolean ascii_armor, GError **error)
{
GList *recipkeys = NULL;
SeahorseGpgmeOperation *pop;
SeahorseObject *signkey = NULL;
SeahorseObject *skey;
gpgme_key_t *recips;
gboolean symmetric = FALSE;
gpgme_data_t plain, cipher;
gpgme_error_t gerr;
gboolean ret = TRUE;
GSettings *settings;
gchar *keyid;
if ((flags & FLAG_SYMMETRIC) == FLAG_SYMMETRIC)
symmetric = TRUE;
if (symmetric && recipients[0] != NULL) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Recipients specified for symmetric encryption"));
return FALSE;
}
/* The signer */
if (signer && signer[0]) {
signkey = seahorse_context_object_from_dbus (SCTX_APP (), signer);
if (!signkey) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Invalid or unrecognized signer: %s"), signer);
return FALSE;
}
if (!SEAHORSE_IS_GPGME_KEY (signkey) ||
!(seahorse_object_get_flags (signkey) & SEAHORSE_FLAG_CAN_SIGN)) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Key is not valid for signing: %s"), signer);
return FALSE;
}
}
if (!symmetric) {
/* The recipients */
for( ; recipients[0]; recipients++)
{
skey = seahorse_context_object_from_dbus (SCTX_APP (), recipients[0]);
if (!skey) {
g_list_free (recipkeys);
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Invalid or unrecognized recipient: %s"), recipients[0]);
return FALSE;
}
if (!SEAHORSE_IS_GPGME_KEY (skey) ||
!(seahorse_object_get_flags (skey) & SEAHORSE_FLAG_CAN_ENCRYPT)) {
g_list_free (recipkeys);
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Key is not a valid recipient for encryption: %s"), recipients[0]);
return FALSE;
}
recipkeys = g_list_prepend (recipkeys, SEAHORSE_PGP_KEY (skey));
}
if (!recipkeys) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("No recipients specified"));
return FALSE;
}
}
pop = seahorse_gpgme_operation_new (NULL);
/* new data form text */
gerr = gpgme_data_new_from_mem (&plain, cleartext, clearlength, FALSE);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
gerr = gpgme_data_new (&cipher);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
/* encrypt with armor */
gpgme_set_textmode (pop->gctx, textmode);
gpgme_set_armor (pop->gctx, ascii_armor);
if (symmetric) {
/* gpgme_op_encrypt{_sign,}_start() will perform symmetric encryption
* when no recipients are specified. */
recips = NULL;
} else {
/* Add the default key if set and necessary */
settings = g_settings_new ("org.gnome.crypto.pgp");
if (g_settings_get_boolean (settings, "encrypt-to-self")) {
keyid = g_settings_get_string (settings, "default-key");
if (keyid && keyid[0]) {
skey = seahorse_context_find_object (NULL, g_quark_from_string (keyid),
SEAHORSE_LOCATION_LOCAL);
if (SEAHORSE_IS_PGP_KEY (skey))
recipkeys = g_list_append (recipkeys, skey);
}
g_free (keyid);
}
g_object_unref (settings);
/* Make keys into the right format for GPGME */
recips = keylist_to_keys (recipkeys);
g_list_free (recipkeys);
}
/* Do the encryption */
if (signkey) {
gpgme_signers_add (pop->gctx, seahorse_gpgme_key_get_private (SEAHORSE_GPGME_KEY (signkey)));
gerr = gpgme_op_encrypt_sign_start (pop->gctx, recips, GPGME_ENCRYPT_ALWAYS_TRUST,
plain, cipher);
} else {
gerr = gpgme_op_encrypt_start (pop->gctx, recips, GPGME_ENCRYPT_ALWAYS_TRUST,
plain, cipher);
}
free_keys (recips);
/* Frees cipher */
ret = process_crypto_result (pop, gerr, cipher, crypttext, cryptlength, error);
g_object_unref (pop);
gpgme_data_release (plain);
return ret;
}
/** \brief Encrypt data
*
* \param recipients Array of User ID for which the matter shall be
* encrypted using their public keys.
* \param sign_for User ID of the signer or NULL if the matter shall not be
* signed. Note that combined signing and encryption is allowed \em
* only in OpenPGP single-part (i.e. RFC 2440) mode.
* \param istream GMime input stream.
* \param ostream GMime output stream.
* \param protocol GpgME crypto protocol to use for encryption.
* \param singlepart_mode TRUE indicates single-part mode (integrated
* signature), FALSE a detached signature.
* \param trust_all_keys TRUE if all low-truct keys shall be accepted for
* encryption. Otherwise, the function will use the global callback
* to ask the user whether a low-trust key shall be accepted.
* \param parent Parent window to be passed to the callback functions.
* \param error Filled with error information on error.
* \return 0 on success, or -1 on error.
*
* Encrypt the passed matter and write the result to the output stream.
* Combined signing and encryption is allowed for single-part OpenPGP mode
* only.
*/
int
libbalsa_gpgme_encrypt(GPtrArray * recipients, const char *sign_for,
GMimeStream * istream, GMimeStream * ostream,
gpgme_protocol_t protocol, gboolean singlepart_mode,
gboolean trust_all_keys, GtkWindow * parent,
GError ** error)
{
gpgme_ctx_t ctx;
gpgme_error_t err;
gpgme_key_t *rcpt_keys;
gpgme_data_t plain;
gpgme_data_t crypt;
struct gpgme_data_cbs cbs = {
(gpgme_data_read_cb_t) g_mime_gpgme_stream_rd, /* read method */
(gpgme_data_write_cb_t) g_mime_gpgme_stream_wr, /* write method */
NULL, /* seek method */
cb_data_release /* release method */
};
/* paranoia checks */
g_return_val_if_fail(recipients != NULL, -1);
g_return_val_if_fail(GMIME_IS_STREAM(istream), -1);
g_return_val_if_fail(GMIME_IS_STREAM(ostream), GPGME_MD_NONE);
g_return_val_if_fail(protocol == GPGME_PROTOCOL_OpenPGP ||
protocol == GPGME_PROTOCOL_CMS, -1);
/* create the GpgME context */
if ((err =
gpgme_new_with_protocol(&ctx, protocol, parent,
error)) != GPG_ERR_NO_ERROR)
return -1;
/* sign & encrypt is valid only for single-part OpenPGP */
if (sign_for != NULL
&& (!singlepart_mode || protocol != GPGME_PROTOCOL_OpenPGP)) {
if (error)
g_set_error(error, GPGME_ERROR_QUARK, GPG_ERR_INV_ENGINE,
_
("combined signing and encryption is defined only for RFC 2440"));
gpgme_release(ctx);
return -1;
}
/* if requested, find the secret key for "userid" */
if (sign_for && !gpgme_add_signer(ctx, sign_for, parent, error)) {
gpgme_release(ctx);
return -1;
}
/* build the list of recipients */
if (!
(rcpt_keys =
gpgme_build_recipients(ctx, recipients, trust_all_keys, parent,
error))) {
gpgme_release(ctx);
return -1;
}
/* create the data objects */
if (protocol == GPGME_PROTOCOL_OpenPGP) {
gpgme_set_armor(ctx, 1);
gpgme_set_textmode(ctx, singlepart_mode);
} else {
gpgme_set_armor(ctx, 0);
gpgme_set_textmode(ctx, 0);
}
if ((err =
gpgme_data_new_from_cbs(&plain, &cbs,
istream)) != GPG_ERR_NO_ERROR) {
g_set_error_from_gpgme(error, err,
_("could not get data from stream"));
release_keylist(rcpt_keys);
gpgme_release(ctx);
return -1;
}
if ((err =
gpgme_data_new_from_cbs(&crypt, &cbs,
ostream)) != GPG_ERR_NO_ERROR) {
g_set_error_from_gpgme(error, err,
_("could not create new data object"));
release_keylist(rcpt_keys);
gpgme_data_release(plain);
gpgme_release(ctx);
return -1;
}
/* do the encrypt or sign and encrypt operation
* Note: we set "always trust" here, as if we detected an untrusted key
* earlier, the user already accepted it */
if (sign_for)
err =
gpgme_op_encrypt_sign(ctx, rcpt_keys,
GPGME_ENCRYPT_ALWAYS_TRUST, plain,
crypt);
else
err =
gpgme_op_encrypt(ctx, rcpt_keys, GPGME_ENCRYPT_ALWAYS_TRUST,
plain, crypt);
release_keylist(rcpt_keys);
gpgme_data_release(plain);
gpgme_data_release(crypt);
gpgme_release(ctx);
if (err != GPG_ERR_NO_ERROR) {
if (sign_for)
g_set_error_from_gpgme(error, err,
_("signing and encryption failed"));
else
g_set_error_from_gpgme(error, err, _("encryption failed"));
return -1;
} else
return 0;
}
/**
* crypto: the crypto service (#SeahorseServiceCrypto)
* recipients: A list of recipients (keyids "openpgp:B8098FB063E2C811")
* signer: optional, the keyid of the signer
* flags: 0, not used
* cleartext: the text to encrypt
* clearlength: Length of the cleartext
* crypttext: the encrypted text (out)
* cryptlength: the length of this text (out)
* textmode: TRUE if gpgme should use textmode
* ascii_armor: TRUE if GPGME should use ascii armor
* error: The Error
*
* Handles encryption in a generic way. Can be used by several DBus APIs
*
* Returns TRUE on success
**/
static gboolean
crypto_encrypt_generic (SeahorseServiceCrypto *crypto,
const char **recipients, const char *signer,
int flags, const char *cleartext, gsize clearlength,
char **crypttext, gsize *cryptlength, gboolean textmode,
gboolean ascii_armor, GError **error)
{
GList *recipkeys = NULL;
SeahorseGpgmeOperation *pop;
SeahorseObject *signkey = NULL;
SeahorseObject *skey;
gpgme_key_t *recips;
gpgme_data_t plain, cipher;
gpgme_error_t gerr;
gboolean ret = TRUE;
/*
* TODO: Once we support different kinds of keys that support encryption
* then all this logic will need to change.
*/
/* The signer */
if (signer && signer[0]) {
signkey = seahorse_context_object_from_dbus (SCTX_APP (), signer);
if (!signkey) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Invalid or unrecognized signer: %s"), signer);
return FALSE;
}
if (!SEAHORSE_IS_GPGME_KEY (signkey) ||
!(seahorse_object_get_flags (signkey) & SEAHORSE_FLAG_CAN_SIGN)) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Key is not valid for signing: %s"), signer);
return FALSE;
}
}
/* The recipients */
for( ; recipients[0]; recipients++)
{
skey = seahorse_context_object_from_dbus (SCTX_APP (), recipients[0]);
if (!skey) {
g_list_free (recipkeys);
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Invalid or unrecognized recipient: %s"), recipients[0]);
return FALSE;
}
if (!SEAHORSE_IS_GPGME_KEY (skey) ||
!(seahorse_object_get_flags (skey) & SEAHORSE_FLAG_CAN_ENCRYPT)) {
g_list_free (recipkeys);
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("Key is not a valid recipient for encryption: %s"), recipients[0]);
return FALSE;
}
recipkeys = g_list_prepend (recipkeys, SEAHORSE_PGP_KEY (skey));
}
if (!recipkeys) {
g_set_error (error, SEAHORSE_DBUS_ERROR, SEAHORSE_DBUS_ERROR_INVALID,
_("No recipients specified"));
return FALSE;
}
pop = seahorse_gpgme_operation_new (NULL);
/* new data form text */
gerr = gpgme_data_new_from_mem (&plain, cleartext, clearlength, FALSE);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
gerr = gpgme_data_new (&cipher);
g_return_val_if_fail (GPG_IS_OK (gerr), FALSE);
/* encrypt with armor */
gpgme_set_textmode (pop->gctx, textmode);
gpgme_set_armor (pop->gctx, ascii_armor);
/* Add the default key if set and necessary */
if (seahorse_gconf_get_boolean (ENCRYPTSELF_KEY)) {
skey = SEAHORSE_OBJECT (seahorse_context_get_default_key (SCTX_APP ()));
if (SEAHORSE_IS_PGP_KEY (skey))
recipkeys = g_list_append (recipkeys, skey);
}
/* Make keys into the right format for GPGME */
recips = keylist_to_keys (recipkeys);
g_list_free (recipkeys);
/* Do the encryption */
if (signkey) {
gpgme_signers_add (pop->gctx, seahorse_gpgme_key_get_private (SEAHORSE_GPGME_KEY (signkey)));
gerr = gpgme_op_encrypt_sign_start (pop->gctx, recips, GPGME_ENCRYPT_ALWAYS_TRUST,
plain, cipher);
} else {
gerr = gpgme_op_encrypt_start (pop->gctx, recips, GPGME_ENCRYPT_ALWAYS_TRUST,
plain, cipher);
}
free_keys (recips);
/* Frees cipher */
ret = process_crypto_result (pop, gerr, cipher, crypttext, cryptlength, error);
g_object_unref (pop);
gpgme_data_release (plain);
return ret;
}
gboolean pgpmime_sign(MimeInfo *mimeinfo, PrefsAccount *account, const gchar *from_addr)
{
MimeInfo *msgcontent, *sigmultipart, *newinfo;
gchar *textstr, *micalg = NULL;
FILE *fp;
gchar *boundary = NULL;
gchar *sigcontent;
gpgme_ctx_t ctx;
gpgme_data_t gpgtext, gpgsig;
gpgme_error_t err;
size_t len;
struct passphrase_cb_info_s info;
gpgme_sign_result_t result = NULL;
gchar *test_msg;
fp = my_tmpfile();
if (fp == NULL) {
perror("my_tmpfile");
privacy_set_error(_("Couldn't create temporary file: %s"), g_strerror(errno));
return FALSE;
}
procmime_write_mimeinfo(mimeinfo, fp);
rewind(fp);
/* read temporary file into memory */
test_msg = file_read_stream_to_str(fp);
claws_fclose(fp);
memset (&info, 0, sizeof info);
/* remove content node from message */
msgcontent = (MimeInfo *) mimeinfo->node->children->data;
g_node_unlink(msgcontent->node);
/* create temporary multipart for content */
sigmultipart = procmime_mimeinfo_new();
sigmultipart->type = MIMETYPE_MULTIPART;
sigmultipart->subtype = g_strdup("signed");
do {
g_free(boundary);
boundary = generate_mime_boundary("Sig");
} while (strstr(test_msg, boundary) != NULL);
g_free(test_msg);
g_hash_table_insert(sigmultipart->typeparameters, g_strdup("boundary"),
g_strdup(boundary));
g_hash_table_insert(sigmultipart->typeparameters, g_strdup("protocol"),
g_strdup("application/pgp-signature"));
g_node_append(sigmultipart->node, msgcontent->node);
g_node_append(mimeinfo->node, sigmultipart->node);
/* write message content to temporary file */
fp = my_tmpfile();
if (fp == NULL) {
perror("my_tmpfile");
privacy_set_error(_("Couldn't create temporary file: %s"), g_strerror(errno));
return FALSE;
}
procmime_write_mimeinfo(sigmultipart, fp);
rewind(fp);
/* read temporary file into memory */
textstr = get_canonical_content(fp, boundary);
g_free(boundary);
claws_fclose(fp);
gpgme_data_new_from_mem(&gpgtext, textstr, (size_t)strlen(textstr), 0);
gpgme_data_new(&gpgsig);
if ((err = gpgme_new(&ctx)) != GPG_ERR_NO_ERROR) {
debug_print(("Couldn't initialize GPG context, %s\n"), gpgme_strerror(err));
privacy_set_error(_("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
return FALSE;
}
gpgme_set_textmode(ctx, 1);
gpgme_set_armor(ctx, 1);
gpgme_signers_clear (ctx);
if (!sgpgme_setup_signers(ctx, account, from_addr)) {
gpgme_release(ctx);
return FALSE;
}
prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
if (g_getenv("GPG_AGENT_INFO") && prefs_gpg_get_config()->use_gpg_agent) {
debug_print("GPG_AGENT_INFO environment defined, running without passphrase callback\n");
} else {
info.c = ctx;
gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
}
err = gpgme_op_sign(ctx, gpgtext, gpgsig, GPGME_SIG_MODE_DETACH);
if (err != GPG_ERR_NO_ERROR) {
if (err == GPG_ERR_CANCELED) {
/* ignore cancelled signing */
privacy_reset_error();
debug_print("gpgme_op_sign cancelled\n");
} else {
privacy_set_error(_("Data signing failed, %s"), gpgme_strerror(err));
debug_print("gpgme_op_sign error : %x\n", err);
}
gpgme_release(ctx);
return FALSE;
}
result = gpgme_op_sign_result(ctx);
if (result && result->signatures) {
gpgme_new_signature_t sig = result->signatures;
if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
gchar *down_algo = g_ascii_strdown(gpgme_hash_algo_name(
result->signatures->hash_algo), -1);
micalg = g_strdup_printf("pgp-%s", down_algo);
g_free(down_algo);
} else {
micalg = g_strdup(gpgme_hash_algo_name(
result->signatures->hash_algo));
}
while (sig) {
debug_print("valid signature: %s\n", sig->fpr);
sig = sig->next;
}
} else if (result && result->invalid_signers) {
gpgme_invalid_key_t invalid = result->invalid_signers;
while (invalid) {
g_warning("invalid signer: %s (%s)", invalid->fpr,
gpgme_strerror(invalid->reason));
privacy_set_error(_("Data signing failed due to invalid signer: %s"),
gpgme_strerror(invalid->reason));
invalid = invalid->next;
}
gpgme_release(ctx);
return FALSE;
} else {
/* can't get result (maybe no signing key?) */
debug_print("gpgme_op_sign_result error\n");
privacy_set_error(_("Data signing failed, no results."));
gpgme_release(ctx);
return FALSE;
}
sigcontent = sgpgme_data_release_and_get_mem(gpgsig, &len);
gpgme_data_release(gpgtext);
g_free(textstr);
if (sigcontent == NULL || len <= 0) {
g_warning("sgpgme_data_release_and_get_mem failed");
privacy_set_error(_("Data signing failed, no contents."));
g_free(micalg);
g_free(sigcontent);
return FALSE;
}
/* add signature */
g_hash_table_insert(sigmultipart->typeparameters, g_strdup("micalg"),
micalg);
newinfo = procmime_mimeinfo_new();
newinfo->type = MIMETYPE_APPLICATION;
newinfo->subtype = g_strdup("pgp-signature");
newinfo->description = g_strdup(_("OpenPGP digital signature"));
newinfo->content = MIMECONTENT_MEM;
newinfo->data.mem = g_malloc(len + 1);
g_memmove(newinfo->data.mem, sigcontent, len);
newinfo->data.mem[len] = '\0';
g_node_append(sigmultipart->node, newinfo->node);
g_free(sigcontent);
gpgme_release(ctx);
return TRUE;
}
