Commit Diff


commit - 543d9dcc6eace20995984db0a5e5a88783b00944
commit + a5957781e265d33fe9245e8934de25ae028beac4
blob - /dev/null
blob + 2a6ab490b14aa1c1ec5139c7f6a039196a0a07e6 (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/.cvsignore
@@ -0,0 +1,7 @@
+.deps
+.libs
+Makefile
+Makefile.in
+*.o
+*.lo
+*.la
blob - /dev/null
blob + e0922667ce8b809ce3c08586028476b803bd67cc (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/Makefile.am
@@ -0,0 +1,21 @@
+plugindir = $(pkglibdir)/plugins
+
+plugin_LTLIBRARIES = pgpmime.la
+
+pgpmime_la_SOURCES = \
+	plugin.c \
+	pgpmime.c pgpmime.h \
+	sgpgme.c sgpgme.h
+
+pgpmime_la_LDFLAGS = \
+	-avoid-version -module
+
+INCLUDES = \
+	-I../../ \
+	-I../../common \
+	-I../../gtk
+
+AM_CPPFLAGS = \
+	$(GLIB_CFLAGS) \
+	$(GTK_CFLAGS) \
+	$(GPGME_CFLAGS)
blob - /dev/null
blob + fe0793daac9f98e41eadc38dc7c0d607632cba5a (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/pgpmime.c
@@ -0,0 +1,319 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#ifdef USE_GPGME
+
+#include "defs.h"
+#include <glib.h>
+#include <gpgme.h>
+
+#include "utils.h"
+#include "privacy.h"
+#include "procmime.h"
+#include "pgpmime.h"
+#include "sgpgme.h"
+#include "prefs_common.h"
+
+typedef struct _PrivacyDataPGP PrivacyDataPGP;
+
+struct _PrivacyDataPGP
+{
+	PrivacyData	data;
+	
+	gboolean	done_sigtest;
+	gboolean	is_signed;
+	GpgmeSigStat	sigstatus;
+	GpgmeCtx 	ctx;
+};
+
+static PrivacySystem pgpmime_system;
+
+static gint pgpmime_check_signature(MimeInfo *mimeinfo);
+
+static PrivacyDataPGP *pgpmime_new_privacydata()
+{
+	PrivacyDataPGP *data;
+
+	data = g_new0(PrivacyDataPGP, 1);
+	data->data.system = &pgpmime_system;
+	data->done_sigtest = FALSE;
+	data->is_signed = FALSE;
+	data->sigstatus = GPGME_SIG_STAT_NONE;
+	gpgme_new(&data->ctx);
+	
+	return data;
+}
+
+static void pgpmime_free_privacydata(PrivacyData *_data)
+{
+	PrivacyDataPGP *data = (PrivacyDataPGP *) _data;
+	
+	g_free(data);
+}
+
+static gboolean pgpmime_is_signed(MimeInfo *mimeinfo)
+{
+	MimeInfo *parent;
+	MimeInfo *signature;
+	const gchar *protocol;
+	PrivacyDataPGP *data = NULL;
+	
+	g_return_val_if_fail(mimeinfo != NULL, FALSE);
+	if (mimeinfo->privacy != NULL) {
+		data = (PrivacyDataPGP *) mimeinfo->privacy;
+		if (data->done_sigtest)
+			return data->is_signed;
+	}
+	
+	/* check parent */
+	parent = procmime_mimeinfo_parent(mimeinfo);
+	if (parent == NULL)
+		return FALSE;
+	if ((parent->type != MIMETYPE_MULTIPART) ||
+	    g_strcasecmp(parent->subtype, "signed"))
+		return FALSE;
+	protocol = procmime_mimeinfo_get_parameter(parent, "protocol");
+	if ((protocol == NULL) || g_strcasecmp(protocol, "application/pgp-signature"))
+		return FALSE;
+
+	/* check if mimeinfo is the first child */
+	if (parent->node->children->data != mimeinfo)
+		return FALSE;
+
+	/* check signature */
+	signature = parent->node->children->next != NULL ? 
+	    (MimeInfo *) parent->node->children->next->data : NULL;
+	if (signature == NULL)
+		return FALSE;
+	if ((signature->type != MIMETYPE_APPLICATION) ||
+	    g_strcasecmp(signature->subtype, "pgp-signature"))
+		return FALSE;
+
+	if (data == NULL) {
+		data = pgpmime_new_privacydata();
+		mimeinfo->privacy = (PrivacyData *) data;
+	}
+	data->done_sigtest = TRUE;
+	data->is_signed = TRUE;
+
+	if (prefs_common.auto_check_signatures)
+		pgpmime_check_signature(mimeinfo);
+	
+	return TRUE;
+}
+
+static gint pgpmime_check_signature(MimeInfo *mimeinfo)
+{
+	PrivacyDataPGP *data;
+	MimeInfo *parent, *signature;
+	FILE *fp;
+	gchar buf[BUFFSIZE];
+	gchar *boundary;
+	GString *textstr;
+	gint boundary_len;
+	GpgmeData sigdata, textdata;
+	
+	g_return_val_if_fail(mimeinfo != NULL, -1);
+	g_return_val_if_fail(mimeinfo->privacy != NULL, -1);
+	data = (PrivacyDataPGP *) mimeinfo->privacy;
+	
+	debug_print("Checking PGP/MIME signature\n");
+	parent = procmime_mimeinfo_parent(mimeinfo);
+
+	fp = fopen(parent->filename, "rb");
+	g_return_val_if_fail(fp != NULL, SIGNATURE_INVALID);
+	
+	boundary = g_hash_table_lookup(parent->parameters, "boundary");
+	boundary_len = strlen(boundary);
+	while (fgets(buf, sizeof(buf), fp) != NULL)
+		if (IS_BOUNDARY(buf, boundary, boundary_len))
+			break;
+
+	textstr = g_string_new("");
+	while (fgets(buf, sizeof(buf), fp) != NULL) {
+		gchar *buf2;
+
+		if (IS_BOUNDARY(buf, boundary, boundary_len))
+			break;
+		
+		buf2 = canonicalize_str(buf);
+		g_string_append(textstr, buf2);
+		g_free(buf2);
+	}
+	g_string_truncate(textstr, textstr->len - 2);
+		
+	gpgme_data_new_from_mem(&textdata, textstr->str, textstr->len, 0);
+	signature = (MimeInfo *) mimeinfo->node->next->data;
+	sigdata = sgpgme_data_from_mimeinfo(signature);
+
+	data->sigstatus =
+		sgpgme_verify_signature	(data->ctx, sigdata, textdata);
+	
+	gpgme_data_release(sigdata);
+	gpgme_data_release(textdata);
+	g_string_free(textstr, TRUE);
+	fclose(fp);
+	
+	return 0;
+}
+
+static SignatureStatus pgpmime_get_sig_status(MimeInfo *mimeinfo)
+{
+	PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
+	
+	g_return_val_if_fail(data != NULL, SIGNATURE_INVALID);
+
+	return sgpgme_sigstat_gpgme_to_privacy(data->ctx, data->sigstatus);
+}
+
+static gchar *pgpmime_get_sig_info_short(MimeInfo *mimeinfo)
+{
+	PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
+	
+	g_return_val_if_fail(data != NULL, g_strdup("Error"));
+
+	return sgpgme_sigstat_info_short(data->ctx, data->sigstatus);
+}
+
+static gchar *pgpmime_get_sig_info_full(MimeInfo *mimeinfo)
+{
+	PrivacyDataPGP *data = (PrivacyDataPGP *) mimeinfo->privacy;
+	
+	g_return_val_if_fail(data != NULL, g_strdup("Error"));
+
+	return sgpgme_sigstat_info_full(data->ctx, data->sigstatus);
+}
+
+static gboolean pgpmime_is_encrypted(MimeInfo *mimeinfo)
+{
+	MimeInfo *tmpinfo;
+	const gchar *tmpstr;
+	
+	if (mimeinfo->type != MIMETYPE_MULTIPART)
+		return FALSE;
+	if (g_strcasecmp(mimeinfo->subtype, "encrypted"))
+		return FALSE;
+	tmpstr = procmime_mimeinfo_get_parameter(mimeinfo, "protocol");
+	if ((tmpstr == NULL) || g_strcasecmp(tmpstr, "application/pgp-encrypted"))
+		return FALSE;
+	if (g_node_n_children(mimeinfo->node) != 2)
+		return FALSE;
+	
+	tmpinfo = (MimeInfo *) g_node_nth_child(mimeinfo->node, 0)->data;
+	if (tmpinfo->type != MIMETYPE_APPLICATION)
+		return FALSE;
+	if (g_strcasecmp(tmpinfo->subtype, "pgp-encrypted"))
+		return FALSE;
+	
+	tmpinfo = (MimeInfo *) g_node_nth_child(mimeinfo->node, 1)->data;
+	if (tmpinfo->type != MIMETYPE_APPLICATION)
+		return FALSE;
+	if (g_strcasecmp(tmpinfo->subtype, "octet-stream"))
+		return FALSE;
+	
+	return TRUE;
+}
+
+static MimeInfo *pgpmime_decrypt(MimeInfo *mimeinfo)
+{
+	MimeInfo *encinfo, *decinfo, *parseinfo;
+	GpgmeData cipher, plain;
+	static gint id = 0;
+	FILE *dstfp;
+	gint nread;
+	gchar *fname;
+	gchar buf[BUFFSIZE];
+	
+	g_return_val_if_fail(pgpmime_is_encrypted(mimeinfo), NULL);
+	
+	encinfo = (MimeInfo *) g_node_nth_child(mimeinfo->node, 1)->data;
+
+	cipher = sgpgme_data_from_mimeinfo(encinfo);
+	plain = sgpgme_decrypt(cipher);
+	gpgme_data_release(cipher);
+	if (plain == NULL)
+		return NULL;
+	
+    	fname = g_strdup_printf("%s%cplaintext.%08x",
+		get_mime_tmp_dir(), G_DIR_SEPARATOR, ++id);
+
+    	if ((dstfp = fopen(fname, "wb")) == NULL) {
+        	FILE_OP_ERROR(fname, "fopen");
+        	g_free(fname);
+        	gpgme_data_release(plain);
+		return NULL;
+    	}
+
+	fprintf(dstfp, "MIME-Version: 1.0\n");
+	gpgme_data_rewind (plain);
+	while (gpgme_data_read(plain, buf, sizeof(buf), &nread) == GPGME_No_Error) {
+      		fwrite (buf, nread, 1, dstfp);
+	}
+	fclose(dstfp);
+	
+	gpgme_data_release(plain);
+
+	parseinfo = procmime_scan_file(fname);
+	g_free(fname);
+	if (parseinfo == NULL)
+		return NULL;
+	decinfo = g_node_first_child(parseinfo->node) != NULL ?
+		g_node_first_child(parseinfo->node)->data : NULL;
+	if (decinfo == NULL)
+		return NULL;
+
+	g_node_unlink(decinfo->node);
+	procmime_mimeinfo_free_all(parseinfo);
+
+	decinfo->tmpfile = TRUE;
+	
+	return decinfo;
+}
+
+static PrivacySystem pgpmime_system = {
+	"pgpmime",			/* id */
+	"PGP/Mime",			/* name */
+
+	pgpmime_free_privacydata,	/* free_privacydata */
+
+	pgpmime_is_signed,		/* is_signed(MimeInfo *) */
+	pgpmime_check_signature,	/* check_signature(MimeInfo *) */
+	pgpmime_get_sig_status,		/* get_sig_status(MimeInfo *) */
+	pgpmime_get_sig_info_short,	/* get_sig_info_short(MimeInfo *) */
+	pgpmime_get_sig_info_full,	/* get_sig_info_full(MimeInfo *) */
+
+	pgpmime_is_encrypted,		/* is_encrypted(MimeInfo *) */
+	pgpmime_decrypt,		/* decrypt(MimeInfo *) */
+};
+
+void pgpmime_init()
+{
+	privacy_register_system(&pgpmime_system);
+}
+
+void pgpmime_done()
+{
+	privacy_unregister_system(&pgpmime_system);
+}
+
+#endif /* USE_GPGME */
blob - /dev/null
blob + a6ce4cece56a80c27d3086d7e3c617e0351786bc (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/pgpmime.h
@@ -0,0 +1,26 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef PGPMIME_H
+#define PGPMIME_H 1
+
+void pgpmime_init(void);
+void pgpmime_done(void);
+
+#endif /* PGPMIME_H */
blob - /dev/null
blob + 2453546ab0bf33b710aad1634aa8b159c0c1793e (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/plugin.c
@@ -0,0 +1,69 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2003 Hiroyuki Yamamoto
+ *
+ * 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <stddef.h>
+
+#include "intl.h"
+
+#include "version.h"
+#include "sgpgme.h"
+#include "pgpmime.h"
+
+gint plugin_init(gchar **error)
+{
+	if ((sylpheed_get_version() > VERSION_NUMERIC)) {
+		*error = g_strdup("Your sylpheed version is newer than the version the plugin was built with");
+		return -1;
+	}
+
+	if ((sylpheed_get_version() < MAKE_NUMERIC_VERSION(0, 9, 12, 34))) {
+		*error = g_strdup("Your sylpheed version is too old");
+		return -1;
+	}
+
+	sgpgme_init();
+	pgpmime_init();
+
+	return 0;	
+}
+
+void plugin_done(void)
+{
+	pgpmime_done();
+	sgpgme_done();
+}
+
+const gchar *plugin_name(void)
+{
+	return _("PGP/MIME");
+}
+
+const gchar *plugin_desc(void)
+{
+	return _("");
+}
+
+const gchar *plugin_type(void)
+{
+	return "GTK";
+}
blob - /dev/null
blob + 7c9551032266f8c1a2ad26e3026c6df4bb76d223 (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/sgpgme.c
@@ -0,0 +1,305 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+ 
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+ 
+#ifdef USE_GPGME
+
+#include <time.h>
+#include <gtk/gtk.h>
+#include <gpgme.h>
+
+#include "sgpgme.h"
+#include "privacy.h"
+#include "prefs_common.h"
+#include "utils.h"
+#include "alertpanel.h"
+#include "passphrase.h"
+#include "intl.h"
+
+static void idle_function_for_gpgme(void)
+{
+	while (gtk_events_pending())
+		gtk_main_iteration();
+}
+
+static void sgpgme_disable_all(void)
+{
+    /* FIXME: set a flag, so that we don't bother the user with failed
+     * gpgme messages */
+}
+
+GpgmeSigStat sgpgme_verify_signature(GpgmeCtx ctx, GpgmeData sig, 
+					GpgmeData plain)
+{
+	GpgmeSigStat status;
+
+	if (gpgme_op_verify(ctx, sig, plain, &status) != GPGME_No_Error)
+		return GPGME_SIG_STAT_ERROR;
+
+	return status;
+}
+
+SignatureStatus sgpgme_sigstat_gpgme_to_privacy(GpgmeCtx ctx, GpgmeSigStat status)
+{
+	unsigned long validity = 0;
+	
+	validity = gpgme_get_sig_ulong_attr(ctx, 0,
+		GPGME_ATTR_VALIDITY, 0);
+
+	switch (status) {
+	case GPGME_SIG_STAT_GOOD:
+		if ((validity != GPGME_VALIDITY_MARGINAL) &&
+		    (validity != GPGME_VALIDITY_FULL) &&
+		    (validity != GPGME_VALIDITY_ULTIMATE))
+			return SIGNATURE_WARN;
+		return SIGNATURE_OK;
+	case GPGME_SIG_STAT_GOOD_EXP:
+	case GPGME_SIG_STAT_GOOD_EXPKEY:
+	case GPGME_SIG_STAT_DIFF:
+		return SIGNATURE_WARN;
+	case GPGME_SIG_STAT_BAD:
+		return SIGNATURE_INVALID;
+	case GPGME_SIG_STAT_NOKEY:
+	case GPGME_SIG_STAT_NOSIG:
+	case GPGME_SIG_STAT_ERROR:
+		return SIGNATURE_CHECK_FAILED;
+	case GPGME_SIG_STAT_NONE:
+		return SIGNATURE_UNCHECKED;
+	}
+	return SIGNATURE_CHECK_FAILED;
+}
+
+static const gchar *get_validity_str(unsigned long validity)
+{
+	switch (validity) {
+	case GPGME_VALIDITY_UNKNOWN:
+		return _("Unknown");
+	case GPGME_VALIDITY_UNDEFINED:
+		return _("Undefined");
+	case GPGME_VALIDITY_NEVER:
+		return _("Never");
+	case GPGME_VALIDITY_MARGINAL:
+		return _("Marginal");
+	case GPGME_VALIDITY_FULL:
+		return _("Full");
+	case GPGME_VALIDITY_ULTIMATE:
+		return _("Ultimate");
+	default:
+		return _("Error");
+	}
+}
+
+gchar *sgpgme_sigstat_info_short(GpgmeCtx ctx, GpgmeSigStat status)
+{
+	switch (status) {
+	case GPGME_SIG_STAT_GOOD:
+	{
+		GpgmeKey key;
+		unsigned long validity = 0;
+	
+        	if (gpgme_get_sig_key(ctx, 0, &key) != GPGME_No_Error)
+                	return g_strdup(_("Error"));
+
+		validity = gpgme_get_sig_ulong_attr(ctx, 0,
+			GPGME_ATTR_VALIDITY, 0);
+		
+		return g_strdup_printf(_("Valid signature by %s (Trust: %s)"),
+			gpgme_key_get_string_attr(key, GPGME_ATTR_NAME, NULL, 0),
+			get_validity_str(validity));
+	}
+	case GPGME_SIG_STAT_GOOD_EXP:
+		return g_strdup(_("The signature has expired"));
+	case GPGME_SIG_STAT_GOOD_EXPKEY:
+		return g_strdup(_("The key that was used to sign this part has expired"));
+	case GPGME_SIG_STAT_DIFF:
+		return g_strdup(_("Not all signatures are valid"));
+	case GPGME_SIG_STAT_BAD:
+		return g_strdup(_("This signature is invalid"));
+	case GPGME_SIG_STAT_NOKEY:
+		return g_strdup(_("You have no key to verify this signature"));
+	case GPGME_SIG_STAT_NOSIG:
+		return g_strdup(_("No signature found"));
+	case GPGME_SIG_STAT_ERROR:
+		return g_strdup(_("An error occured"));
+	case GPGME_SIG_STAT_NONE:
+		return g_strdup(_("The signature has not been checked"));
+	}
+	return g_strdup(_("Error"));
+}
+
+gchar *sgpgme_sigstat_info_full(GpgmeCtx ctx, GpgmeSigStat status)
+{
+	gint i = 0;
+	gchar *ret;
+	GString *siginfo;
+	GpgmeKey key;
+	
+	siginfo = g_string_sized_new(64);
+	while (gpgme_get_sig_key(ctx, i, &key) != GPGME_EOF) {
+		time_t sigtime, expiretime;
+		GpgmeSigStat sigstatus;
+		gchar timestr[64];
+		const gchar *keytype, *keyid, *uid;
+		
+		sigtime = gpgme_get_sig_ulong_attr(ctx, i, GPGME_ATTR_CREATED, 0);
+		strftime(timestr, 64, "%c", gmtime(&sigtime));
+		keytype = gpgme_key_get_string_attr(key, GPGME_ATTR_ALGO, NULL, 0);
+		keyid = gpgme_key_get_string_attr(key, GPGME_ATTR_KEYID, NULL, 0);
+		g_string_sprintfa(siginfo,
+			_("Signature made %s using %s key ID %s\n"),
+			timestr, keytype, keyid);
+		
+		sigstatus = gpgme_get_sig_ulong_attr(ctx, i, GPGME_ATTR_SIG_STATUS, 0);	
+		uid = gpgme_key_get_string_attr(key, GPGME_ATTR_USERID, NULL, 0);
+		switch (sigstatus) {
+		case GPGME_SIG_STAT_GOOD:
+		case GPGME_SIG_STAT_GOOD_EXPKEY:
+			g_string_sprintfa(siginfo,
+				_("Good signature from \"%s\"\n"),
+				uid);
+			break;
+		case GPGME_SIG_STAT_GOOD_EXP:
+			g_string_sprintfa(siginfo,
+				_("Expired signature from \"%s\"\n"),
+				uid);
+			break;
+		case GPGME_SIG_STAT_BAD:
+			g_string_sprintfa(siginfo,
+				_("BAD signature from \"%s\"\n"),
+				uid);
+			break;
+		default:
+			break;
+		}
+		if (sigstatus != GPGME_SIG_STAT_BAD) {
+			gint j = 1;
+			
+			while ((uid = gpgme_key_get_string_attr(key, GPGME_ATTR_USERID, NULL, j)) != 0) {
+				g_string_sprintfa(siginfo,
+					_("                aka \"%s\"\n"),
+					uid);
+				j++;
+			}
+			g_string_sprintfa(siginfo,
+				_("Primary key fingerprint: %s\n"), 
+				gpgme_key_get_string_attr(key, GPGME_ATTR_FPR, NULL, 0));
+		}
+
+		
+		expiretime = gpgme_get_sig_ulong_attr(ctx, i, GPGME_ATTR_EXPIRE, 0);
+		if (expiretime > 0) {
+			const gchar *format;
+
+			strftime(timestr, 64, "%c", gmtime(&expiretime));
+			if (time(NULL) < expiretime)
+				format = _("Signature expires %s\n");
+			else
+				format = _("Signature expired %s\n");
+			g_string_sprintfa(siginfo, format, timestr);
+		}
+		
+		g_string_append(siginfo, "\n");
+		i++;
+	}
+
+	ret = siginfo->str;
+	g_string_free(siginfo, FALSE);
+	return ret;
+}
+
+GpgmeData sgpgme_data_from_mimeinfo(MimeInfo *mimeinfo)
+{
+	GpgmeData data;
+	
+	gpgme_data_new_from_filepart(&data,
+		mimeinfo->filename,
+		NULL,
+		mimeinfo->offset,
+		mimeinfo->length);
+	
+	return data;
+}
+
+GpgmeData sgpgme_decrypt(GpgmeData cipher)
+{
+	GpgmeCtx ctx;
+	struct passphrase_cb_info_s info;
+	GpgmeData plain;
+	GpgmeError err;
+
+	memset (&info, 0, sizeof info);
+	
+	if (gpgme_new(&ctx) != GPGME_No_Error)
+		return NULL;
+
+	if (gpgme_data_new(&plain) != GPGME_No_Error) {
+		gpgme_release(ctx);
+		return NULL;
+	}
+	
+    	if (!getenv("GPG_AGENT_INFO")) {
+        	info.c = ctx;
+        	gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
+    	}
+
+	err = gpgme_op_decrypt(ctx, cipher, plain);
+	gpgme_release(ctx);
+
+	if (err != GPGME_No_Error) {
+		gpgmegtk_free_passphrase();
+		gpgme_data_release(plain);
+		return NULL;
+	}
+
+	return plain;
+}
+
+void sgpgme_init()
+{
+	if (gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP) != 
+			GPGME_No_Error) {  /* Also does some gpgme init */
+		sgpgme_disable_all();
+		debug_print("gpgme_engine_version:\n%s\n",
+			    gpgme_get_engine_info());
+
+		if (prefs_common.gpg_warning) {
+			AlertValue val;
+
+			val = alertpanel_message_with_disable
+				(_("Warning"),
+				 _("GnuPG is not installed properly, or needs "
+				   "to be upgraded.\n"
+				   "OpenPGP support disabled."), ALERT_WARNING);
+			if (val & G_ALERTDISABLE)
+				prefs_common.gpg_warning = FALSE;
+		}
+	}
+
+	gpgme_register_idle(idle_function_for_gpgme);
+}
+
+void sgpgme_done()
+{
+        gpgmegtk_free_passphrase();
+}
+
+#endif /* USE_GPGME */
blob - /dev/null
blob + ddcf1a84e95da1367a077e83d571060b693efc6b (mode 644)
--- /dev/null
+++ src/plugins/pgpmime/sgpgme.h
@@ -0,0 +1,43 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef SGPGME_H
+#define SGPGME_H 1
+
+#include <gpgme.h>
+
+#include "privacy.h"
+
+void sgpgme_init(void);
+void sgpgme_done(void);
+
+GpgmeSigStat sgpgme_verify_signature	(GpgmeCtx ctx,
+				    	 GpgmeData sig,
+				    	 GpgmeData plain);
+SignatureStatus sgpgme_sigstat_gpgme_to_privacy
+					(GpgmeCtx ctx,
+					 GpgmeSigStat status);
+gchar *sgpgme_sigstat_info_short	(GpgmeCtx ctx,
+					 GpgmeSigStat status);
+gchar *sgpgme_sigstat_info_full		(GpgmeCtx ctx,
+					 GpgmeSigStat status);
+GpgmeData sgpgme_data_from_mimeinfo	(MimeInfo *mimeinfo);
+GpgmeData sgpgme_decrypt		(GpgmeData cipher);
+
+#endif /* SGPGME_H */