/*
- * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws team
+ * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2009 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 <gpgme.h>
#include <ctype.h>
+#include <errno.h>
#include "utils.h"
#include "privacy.h"
#include "procmime.h"
+#include "plugin.h"
#include "pgpmime.h"
#include <plugins/pgpcore/sgpgme.h>
gboolean is_signed;
gpgme_verify_result_t sigstatus;
gpgme_ctx_t ctx;
- gboolean is_pkcs7;
};
static PrivacySystem pgpmime_system;
static PrivacyDataPGP *pgpmime_new_privacydata()
{
PrivacyDataPGP *data;
+ gpgme_error_t err;
data = g_new0(PrivacyDataPGP, 1);
data->data.system = &pgpmime_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) {
+ g_warning(_("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
+ return NULL;
+ }
return data;
}
const gchar *protocol;
PrivacyDataPGP *data = NULL;
- g_return_val_if_fail(mimeinfo != NULL, FALSE);
+ cm_return_val_if_fail(mimeinfo != NULL, FALSE);
if (mimeinfo->privacy != NULL) {
data = (PrivacyDataPGP *) mimeinfo->privacy;
if (data->done_sigtest)
return FALSE;
protocol = procmime_mimeinfo_get_parameter(parent, "protocol");
if ((protocol == NULL) ||
- (g_ascii_strcasecmp(protocol, "application/pgp-signature") &&
- g_ascii_strcasecmp(protocol, "application/pkcs7-signature") &&
- g_ascii_strcasecmp(protocol, "application/x-pkcs7-signature")))
+ (g_ascii_strcasecmp(protocol, "application/pgp-signature")))
return FALSE;
/* check if mimeinfo is the first child */
if (signature == NULL)
return FALSE;
if ((signature->type != MIMETYPE_APPLICATION) ||
- (g_ascii_strcasecmp(signature->subtype, "pgp-signature") &&
- g_ascii_strcasecmp(signature->subtype, "pkcs7-signature") &&
- g_ascii_strcasecmp(signature->subtype, "x-pkcs7-signature")))
+ (g_ascii_strcasecmp(signature->subtype, "pgp-signature")))
return FALSE;
if (data == NULL) {
mimeinfo->privacy = (PrivacyData *) data;
}
- if (!g_ascii_strcasecmp(signature->subtype, "pkcs7-signature") ||
- !g_ascii_strcasecmp(signature->subtype, "x-pkcs7-signature"))
- data->is_pkcs7 = TRUE;
- else
- data->is_pkcs7 = FALSE;
-
data->done_sigtest = TRUE;
data->is_signed = TRUE;
gchar *textstr;
gpgme_data_t sigdata = NULL, textdata = NULL;
gpgme_error_t err;
- g_return_val_if_fail(mimeinfo != NULL, -1);
- g_return_val_if_fail(mimeinfo->privacy != NULL, -1);
+ cm_return_val_if_fail(mimeinfo != NULL, -1);
+ cm_return_val_if_fail(mimeinfo->privacy != NULL, -1);
data = (PrivacyDataPGP *) mimeinfo->privacy;
- 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));
+ privacy_set_error(_("Couldn't initialize GPG context, %s"), gpgme_strerror(err));
+ return 0;
+ }
+
- debug_print("Checking %s/MIME signature\n", data->is_pkcs7?"S":"PGP");
+ debug_print("Checking PGP/MIME signature\n");
- if (data->is_pkcs7) {
- err = gpgme_set_protocol(data->ctx, GPGME_PROTOCOL_CMS);
- } else
- err = gpgme_set_protocol(data->ctx, GPGME_PROTOCOL_OpenPGP);
+ err = gpgme_set_protocol(data->ctx, GPGME_PROTOCOL_OpenPGP);
if (err) {
debug_print ("gpgme_set_protocol failed: %s\n",
parent = procmime_mimeinfo_parent(mimeinfo);
fp = g_fopen(parent->data.filename, "rb");
- if (fp == NULL) {
- perror("my_tmpfile");
- return 0;
- }
- g_return_val_if_fail(fp != NULL, SIGNATURE_INVALID);
+ cm_return_val_if_fail(fp != NULL, SIGNATURE_INVALID);
boundary = g_hash_table_lookup(parent->typeparameters, "boundary");
- if (!boundary)
+ if (!boundary) {
+ privacy_set_error(_("Signature boundary not found."));
+ fclose(fp);
return 0;
-
+ }
textstr = get_canonical_content(fp, boundary);
- err = gpgme_data_new_from_mem(&textdata, textstr, strlen(textstr), 0);
+ err = gpgme_data_new_from_mem(&textdata, textstr, (size_t)strlen(textstr), 0);
if (err) {
debug_print ("gpgme_data_new_from_mem failed: %s\n",
gpgme_strerror (err));
{
PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
- g_return_val_if_fail(data != NULL, SIGNATURE_INVALID);
+ cm_return_val_if_fail(data != NULL, SIGNATURE_INVALID);
if (data->sigstatus == NULL &&
prefs_gpg_get_config()->auto_check_signatures)
{
PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
- g_return_val_if_fail(data != NULL, g_strdup("Error"));
+ cm_return_val_if_fail(data != NULL, g_strdup("Error"));
if (data->sigstatus == NULL &&
prefs_gpg_get_config()->auto_check_signatures)
{
PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
- g_return_val_if_fail(data != NULL, g_strdup("Error"));
+ cm_return_val_if_fail(data != NULL, g_strdup("Error"));
if (data->sigstatus == NULL &&
prefs_gpg_get_config()->auto_check_signatures)
gpgme_ctx_t ctx;
gchar *chars;
size_t len;
+ gpgme_error_t err;
- if (gpgme_new(&ctx) != GPG_ERR_NO_ERROR)
+ 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 NULL;
-
+ }
- g_return_val_if_fail(pgpmime_is_encrypted(mimeinfo), NULL);
+ cm_return_val_if_fail(pgpmime_is_encrypted(mimeinfo), NULL);
encinfo = (MimeInfo *) g_node_nth_child(mimeinfo->node, 1)->data;
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;
}
- fprintf(dstfp, "MIME-Version: 1.0\n");
+ if (fprintf(dstfp, "MIME-Version: 1.0\n") < 0) {
+ FILE_OP_ERROR(fname, "fprintf");
+ fclose(dstfp);
+ privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ debug_print("can't open!\n");
+ return NULL;
+ }
- chars = gpgme_data_release_and_get_mem(plain, &len);
- if (len > 0)
- fwrite(chars, len, 1, dstfp);
- fclose(dstfp);
+ chars = sgpgme_data_release_and_get_mem(plain, &len);
+ if (len > 0) {
+ if (fwrite(chars, 1, len, dstfp) < len) {
+ FILE_OP_ERROR(fname, "fwrite");
+ fclose(dstfp);
+ privacy_set_error(_("Couldn't write to decrypted file %s"), fname);
+ g_free(fname);
+ gpgme_data_release(plain);
+ gpgme_release(ctx);
+ debug_print("can't open!\n");
+ 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);
+ debug_print("can't open!\n");
+ return NULL;
+ }
parseinfo = procmime_scan_file(fname);
g_free(fname);
if (parseinfo == NULL) {
gpgme_release(ctx);
+ privacy_set_error(_("Couldn't parse decrypted file."));
return NULL;
}
decinfo = g_node_first_child(parseinfo->node) != NULL ?
g_node_first_child(parseinfo->node)->data : NULL;
if (decinfo == NULL) {
+ privacy_set_error(_("Couldn't parse decrypted file parts."));
gpgme_release(ctx);
return NULL;
}
return decinfo;
}
-gboolean pgpmime_sign(MimeInfo *mimeinfo, PrefsAccount *account)
+gboolean pgpmime_sign(MimeInfo *mimeinfo, PrefsAccount *account, const gchar *from_addr)
{
MimeInfo *msgcontent, *sigmultipart, *newinfo;
gchar *textstr, *micalg;
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;
fp = my_tmpfile();
if (fp == NULL) {
- perror("my_tmpfile");
+ privacy_set_error(_("Couldn't create temporary file: %s"), strerror(errno));
return FALSE;
}
procmime_write_mimeinfo(mimeinfo, fp);
sigmultipart->subtype = g_strdup("signed");
do {
- if (boundary)
- g_free(boundary);
+ g_free(boundary);
boundary = generate_mime_boundary("Sig");
} while (strstr(test_msg, boundary) != NULL);
fp = my_tmpfile();
if (fp == NULL) {
perror("my_tmpfile");
+ privacy_set_error(_("Couldn't create temporary file: %s"), strerror(errno));
return FALSE;
}
procmime_write_mimeinfo(sigmultipart, 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);
gpgme_signers_clear (ctx);
- if (!sgpgme_setup_signers(ctx, account)) {
+ if (!sgpgme_setup_signers(ctx, account, from_addr)) {
gpgme_release(ctx);
return FALSE;
}
- if (!getenv("GPG_AGENT_INFO")) {
- info.c = ctx;
+ prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
+ if (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);
}
- if (gpgme_op_sign(ctx, gpgtext, gpgsig, GPGME_SIG_MODE_DETACH) != GPG_ERR_NO_ERROR) {
+ 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) {
- if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
- micalg = g_strdup_printf("PGP-%s", gpgme_hash_algo_name(
- result->signatures->hash_algo));
- } else {
- micalg = g_strdup(gpgme_hash_algo_name(
- result->signatures->hash_algo));
- }
+ gpgme_new_signature_t sig = result->signatures;
+ if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
+ micalg = g_strdup_printf("PGP-%s", gpgme_hash_algo_name(
+ result->signatures->hash_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?) */
- return FALSE;
+ /* 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;
}
- gpgme_release(ctx);
- sigcontent = gpgme_data_release_and_get_mem(gpgsig, &len);
+ 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."));
+ 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");
+ g_hash_table_insert(newinfo->typeparameters, g_strdup("name"),
+ g_strdup("signature.asc"));
newinfo->content = MIMECONTENT_MEM;
+ newinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
+ g_hash_table_insert(newinfo->dispositionparameters, g_strdup("filename"),
+ g_strdup("signature.asc"));
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;
}
gchar *pgpmime_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 *pgpmime_get_encrypt_warning(void)
+{
+ if (prefs_gpg_should_skip_encryption_warning(pgpmime_system.id))
+ return NULL;
+ else
+ return _("Please note that email headers, like Subject, "
+ "are not encrypted by the PGP/Mime system.");
+}
+
+static void pgpmime_inhibit_encrypt_warning(gboolean inhibit)
+{
+ if (inhibit)
+ prefs_gpg_add_skip_encryption_warning(pgpmime_system.id);
+ else
+ prefs_gpg_remove_skip_encryption_warning(pgpmime_system.id);
}
gboolean pgpmime_encrypt(MimeInfo *mimeinfo, const gchar *encrypt_data)
gpgme_key_t *kset = NULL;
gchar **fprs = g_strsplit(encrypt_data, " ", -1);
gint i = 0;
+ gpgme_error_t err;
+
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;
/* write message content to temporary file */
fp = my_tmpfile();
if (fp == NULL) {
- perror("my_tmpfile");
+ privacy_set_error(_("Couldn't create temporary file, %s"), strerror(errno));
return FALSE;
}
procmime_write_mimeinfo(encmultipart, fp);
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_set_armor(ctx, 1);
- gpgme_data_rewind(gpgtext);
+ cm_gpgme_data_rewind(gpgtext);
- 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);
gpgme_data_release(gpgtext);
g_free(textstr);
+ if (enccontent == NULL || len <= 0) {
+ g_warning("sgpgme_data_release_and_get_mem failed");
+ privacy_set_error(_("Encryption failed, %s"), gpgme_strerror(err));
+ gpgme_release(ctx);
+ return FALSE;
+ }
+
/* create encrypted multipart */
g_node_unlink(msgcontent->node);
procmime_mimeinfo_free_all(msgcontent);
g_node_append(encmultipart->node, newinfo->node);
g_free(enccontent);
+ gpgme_release(ctx);
return TRUE;
}
TRUE,
pgpmime_get_encrypt_data,
pgpmime_encrypt,
+ pgpmime_get_encrypt_warning,
+ pgpmime_inhibit_encrypt_warning,
};
void pgpmime_init()
privacy_unregister_system(&pgpmime_system);
}
+struct PluginFeature *plugin_provides(void)
+{
+ static struct PluginFeature features[] =
+ { {PLUGIN_PRIVACY, N_("PGP/Mime")},
+ {PLUGIN_NOTHING, NULL}};
+ return features;
+}
#endif /* USE_GPGME */
projects / claws.git / blobdiff