/*
- * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2006 Hiroyuki Yamamoto & the Sylpheed-Claws team
- * This file (C) 2004 Colin Leroy <colin@colino.net>
+ * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2009 Colin Leroy <colin@colino.net> and
+ * the Claws Mail team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
*/
#ifdef HAVE_CONFIG_H
#include "defs.h"
#include <glib.h>
+#include <glib/gi18n.h>
+#include <errno.h>
#include <gpgme.h>
#include "utils.h"
#include "quoted-printable.h"
#include "base64.h"
#include "codeconv.h"
+#include "plugin.h"
extern struct GPGConfig prefs_gpg;
static PrivacyDataPGP *pgpinline_new_privacydata()
{
PrivacyDataPGP *data;
+ gpgme_error_t err;
data = g_new0(PrivacyDataPGP, 1);
data->data.system = &pgpinline_system;
data->done_sigtest = FALSE;
data->is_signed = FALSE;
data->sigstatus = NULL;
- gpgme_new(&data->ctx);
+ if ((err = gpgme_new(&data->ctx)) != GPG_ERR_NO_ERROR) {
+ debug_print(("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
+ return NULL;
+ }
return data;
}
static gchar *get_part_as_string(MimeInfo *mimeinfo)
{
gchar *textdata = NULL;
+ gchar *filename = NULL;
+ FILE *fp;
g_return_val_if_fail(mimeinfo != NULL, 0);
procmime_decode_content(mimeinfo);
+
if (mimeinfo->content == MIMECONTENT_MEM)
textdata = g_strdup(mimeinfo->data.mem);
else {
- /* equals file_read_to_str but without conversion */
- FILE *fp = fopen(mimeinfo->data.filename, "r");
- if (!fp)
+ filename = procmime_get_tmp_file_name(mimeinfo);
+ if (procmime_get_part(filename, mimeinfo) < 0) {
+ printf("error dumping file\n");
return NULL;
+ }
+ fp = g_fopen(filename,"rb");
+ if (!fp) {
+ printf("error reading file\n");
+ return NULL;
+ }
textdata = fp_read_noconv(fp);
fclose(fp);
+ g_unlink(filename);
+ g_free(filename);
}
if (!g_utf8_validate(textdata, -1, NULL)) {
if (procmime_mimeinfo_parent(mimeinfo) == NULL)
return FALSE; /* not parent */
-
- if (mimeinfo->type != MIMETYPE_TEXT)
- return FALSE;
+ if (mimeinfo->type != MIMETYPE_TEXT &&
+ (mimeinfo->type != MIMETYPE_APPLICATION ||
+ g_ascii_strcasecmp(mimeinfo->subtype, "pgp")))
+ return FALSE;
+
+ /* Seal the deal. This has to be text/plain through and through. */
+ if (mimeinfo->type == MIMETYPE_APPLICATION)
+ {
+ mimeinfo->type = MIMETYPE_TEXT;
+ g_free(mimeinfo->subtype);
+ mimeinfo->subtype = g_strdup("plain");
+ }
+
if (mimeinfo->privacy != NULL) {
data = (PrivacyDataPGP *) mimeinfo->privacy;
if (data->done_sigtest)
PrivacyDataPGP *data = NULL;
gchar *textdata = NULL, *tmp = NULL;
gpgme_data_t plain = NULL, cipher = NULL;
- gpgme_ctx_t ctx;
-
+ gpgme_error_t err;
+
g_return_val_if_fail(mimeinfo != NULL, 0);
- if (procmime_mimeinfo_parent(mimeinfo) == NULL)
+ if (procmime_mimeinfo_parent(mimeinfo) == NULL) {
+ privacy_set_error(_("Incorrect part"));
return 0; /* not parent */
- if (mimeinfo->type != MIMETYPE_TEXT)
+ }
+ if (mimeinfo->type != MIMETYPE_TEXT) {
+ privacy_set_error(_("Not a text part"));
+ debug_print("type %d\n", mimeinfo->type);
return 0;
-
+ }
g_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;
}
}
g_free(textdata);
- if (!tmp)
+ if (!tmp) {
+ privacy_set_error(_("Couldn't convert text data to any sane charset."));
return 0;
-
+ }
textdata = g_strdup(tmp);
g_free(tmp);
- gpgme_new(&ctx);
- gpgme_set_textmode(ctx, 1);
- gpgme_set_armor(ctx, 1);
+ 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));
+ return 0;
+ }
+ gpgme_set_textmode(data->ctx, 1);
+ gpgme_set_armor(data->ctx, 1);
- gpgme_data_new_from_mem(&plain, textdata, strlen(textdata), 1);
+ gpgme_data_new_from_mem(&plain, textdata, (size_t)strlen(textdata), 1);
gpgme_data_new(&cipher);
- data->sigstatus = sgpgme_verify_signature(ctx, plain, NULL, cipher);
+ data->sigstatus = sgpgme_verify_signature(data->ctx, plain, NULL, cipher);
gpgme_data_release(plain);
gpgme_data_release(cipher);
if (procmime_mimeinfo_parent(mimeinfo) == NULL)
return FALSE; /* not parent */
- if (mimeinfo->type != MIMETYPE_TEXT)
+ if (mimeinfo->type != MIMETYPE_TEXT &&
+ (mimeinfo->type != MIMETYPE_APPLICATION ||
+ g_ascii_strcasecmp(mimeinfo->subtype, "pgp")))
return FALSE;
+ /* Seal the deal. This has to be text/plain through and through. */
+ if (mimeinfo->type == MIMETYPE_APPLICATION)
+ {
+ mimeinfo->type = MIMETYPE_TEXT;
+ g_free(mimeinfo->subtype);
+ mimeinfo->subtype = g_strdup("plain");
+ }
+
textdata = get_part_as_string(mimeinfo);
if (!textdata)
return FALSE;
}
g_free(textdata);
+
return TRUE;
}
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;
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, strlen(textdata), 1);
+ gpgme_data_new_from_mem(&cipher, textdata, (size_t)strlen(textdata), 1);
plain = sgpgme_decrypt_verify(cipher, &sigstat, ctx);
if (sigstat && !sigstat->signatures)
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);
if (src_codeset == NULL)
src_codeset = CS_ISO_8859_1;
- fprintf(dstfp, "MIME-Version: 1.0\r\n"
+ 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);
-
- chars = gpgme_data_release_and_get_mem(plain, &len);
- if (len > 0)
- fwrite(chars, len, 1, dstfp);
+ src_codeset) < 0) {
+ FILE_OP_ERROR(fname, "fprintf");
+ privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ return NULL;
+ }
- fclose(dstfp);
+ /* Store any part before encrypted text */
+ pos = strstr(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);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ return NULL;
+ }
+ }
- gpgme_data_release(plain);
+ 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);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ return NULL;
+ }
+ chars = sgpgme_data_release_and_get_mem(plain, &len);
+ if (len > 0) {
+ if (fwrite(chars, 1, len, dstfp) < len) {
+ FILE_OP_ERROR(fname, "fwrite");
+ privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ return NULL;
+ }
+ }
+ /* 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);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ return NULL;
+ }
+ if (pos != NULL) {
+ pos = strstr(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);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ return NULL;
+ }
+ }
+ }
+ 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 ?
if (decinfo == NULL) {
gpgme_release(ctx);
+ privacy_set_error(_("Couldn't scan decrypted file parts."));
return NULL;
}
return decinfo;
}
-static gboolean pgpinline_sign(MimeInfo *mimeinfo, PrefsAccount *account)
+static gboolean pgpinline_sign(MimeInfo *mimeinfo, PrefsAccount *account, const gchar *from_addr)
{
MimeInfo *msgcontent;
gchar *textstr, *tmp;
gchar *sigcontent;
gpgme_ctx_t ctx;
gpgme_data_t gpgtext, gpgsig;
- guint len;
+ size_t len;
+ gpgme_error_t err;
struct passphrase_cb_info_s info;
+ gpgme_sign_result_t result = NULL;
memset (&info, 0, sizeof info);
fp = my_tmpfile();
if (fp == NULL) {
perror("my_tmpfile");
+ privacy_set_error(_("Couldn't create temporary file."));
return FALSE;
}
procmime_write_mimeinfo(msgcontent, fp);
fclose(fp);
- gpgme_data_new_from_mem(&gpgtext, textstr, strlen(textstr), 0);
+ gpgme_data_new_from_mem(&gpgtext, textstr, (size_t)strlen(textstr), 0);
gpgme_data_new(&gpgsig);
- gpgme_new(&ctx);
+ 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)) {
+ if (!sgpgme_setup_signers(ctx, account, from_addr)) {
gpgme_release(ctx);
return FALSE;
}
- if (!getenv("GPG_AGENT_INFO")) {
+ 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);
}
- if (gpgme_op_sign(ctx, gpgtext, gpgsig, GPGME_SIG_MODE_CLEAR)
- != GPG_ERR_NO_ERROR) {
- gpgme_release(ctx);
+ 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;
}
- gpgme_release(ctx);
- sigcontent = gpgme_data_release_and_get_mem(gpgsig, &len);
tmp = g_malloc(len+1);
g_memmove(tmp, sigcontent, len+1);
tmp[len] = '\0';
if (msgcontent->content == MIMECONTENT_FILE &&
msgcontent->data.filename != NULL) {
- g_unlink(msgcontent->data.filename);
+ if (msgcontent->tmp == TRUE)
+ claws_unlink(msgcontent->data.filename);
g_free(msgcontent->data.filename);
}
msgcontent->data.mem = g_strdup(tmp);
* chars
*/
procmime_encode_content(msgcontent, ENC_BASE64);
-
+ gpgme_release(ctx);
+
return TRUE;
}
static gchar *pgpinline_get_encrypt_data(GSList *recp_names)
{
- return sgpgme_get_encrypt_data(recp_names);
+ return sgpgme_get_encrypt_data(recp_names, GPGME_PROTOCOL_OpenPGP);
+}
+
+static const gchar *pgpinline_get_encrypt_warning(void)
+{
+ if (prefs_gpg_should_skip_encryption_warning(pgpinline_system.id))
+ return NULL;
+ else
+ return _("Please note that attachments are not encrypted by "
+ "the PGP/Inline system, nor are email headers, like Subject.");
+}
+
+static void pgpinline_inhibit_encrypt_warning(gboolean inhibit)
+{
+ if (inhibit)
+ prefs_gpg_add_skip_encryption_warning(pgpinline_system.id);
+ else
+ prefs_gpg_remove_skip_encryption_warning(pgpinline_system.id);
}
static gboolean pgpinline_encrypt(MimeInfo *mimeinfo, const gchar *encrypt_data)
MimeInfo *msgcontent;
FILE *fp;
gchar *enccontent;
- guint len;
+ size_t len;
gchar *textstr, *tmp;
gpgme_data_t gpgtext, gpgenc;
gpgme_ctx_t ctx;
gpgme_key_t *kset = NULL;
gchar **fprs = g_strsplit(encrypt_data, " ", -1);
+ gpgme_error_t err;
gint i = 0;
+
while (fprs[i] && strlen(fprs[i])) {
i++;
}
kset = g_malloc(sizeof(gpgme_key_t)*(i+1));
memset(kset, 0, sizeof(gpgme_key_t)*(i+1));
- gpgme_new(&ctx);
+ 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;
+ }
i = 0;
while (fprs[i] && strlen(fprs[i])) {
gpgme_key_t key;
- gpgme_error_t err;
err = gpgme_get_key(ctx, fprs[i], &key, 0);
if (err) {
debug_print("can't add key '%s'[%d] (%s)\n", fprs[i],i, gpgme_strerror(err));
- break;
+ privacy_set_error(_("Couldn't add GPG key %s, %s"), fprs[i], gpgme_strerror(err));
+ return FALSE;
}
debug_print("found %s at %d\n", fprs[i], i);
kset[i] = key;
fp = my_tmpfile();
if (fp == NULL) {
+ privacy_set_error(_("Couldn't create temporary file, %s"), strerror(errno));
perror("my_tmpfile");
return FALSE;
}
fclose(fp);
/* encrypt data */
- gpgme_data_new_from_mem(&gpgtext, textstr, strlen(textstr), 0);
+ gpgme_data_new_from_mem(&gpgtext, textstr, (size_t)strlen(textstr), 0);
gpgme_data_new(&gpgenc);
- gpgme_new(&ctx);
+ 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_armor(ctx, 1);
- gpgme_op_encrypt(ctx, kset, GPGME_ENCRYPT_ALWAYS_TRUST, gpgtext, gpgenc);
+ err = gpgme_op_encrypt(ctx, kset, GPGME_ENCRYPT_ALWAYS_TRUST, gpgtext, gpgenc);
- gpgme_release(ctx);
- enccontent = gpgme_data_release_and_get_mem(gpgenc, &len);
+ enccontent = sgpgme_data_release_and_get_mem(gpgenc, &len);
+
+ if (enccontent == NULL || len <= 0) {
+ g_warning("sgpgme_data_release_and_get_mem failed");
+ privacy_set_error(_("Encryption failed, %s"), gpgme_strerror(err));
+ gpgme_data_release(gpgtext);
+ g_free(textstr);
+ gpgme_release(ctx);
+ return FALSE;
+ }
tmp = g_malloc(len+1);
g_memmove(tmp, enccontent, len+1);
if (msgcontent->content == MIMECONTENT_FILE &&
msgcontent->data.filename != NULL) {
- g_unlink(msgcontent->data.filename);
+ 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);
+ gpgme_release(ctx);
return TRUE;
}
TRUE,
pgpinline_get_encrypt_data,
pgpinline_encrypt,
+ pgpinline_get_encrypt_warning,
+ pgpinline_inhibit_encrypt_warning,
};
void pgpinline_init()
privacy_unregister_system(&pgpinline_system);
}
+struct PluginFeature *plugin_provides(void)
+{
+ static struct PluginFeature features[] =
+ { {PLUGIN_PRIVACY, N_("PGP/Inline")},
+ {PLUGIN_NOTHING, NULL}};
+ return features;
+}
#endif /* USE_GPGME */