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-rw-r--r--mail/openpgp-utils.c1131
1 files changed, 0 insertions, 1131 deletions
diff --git a/mail/openpgp-utils.c b/mail/openpgp-utils.c
deleted file mode 100644
index 8a1d66c783..0000000000
--- a/mail/openpgp-utils.c
+++ /dev/null
@@ -1,1131 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * Authors: Nathan Thompson-Amato <ndt@jps.net>
- * Dan Winship <danw@helixcode.com>
- * Jeffrey Stedfast <fejj@helixcode.com>
- *
- * Copyright (C) Helix Code, Inc. (www.helixcode.com)
- *
- * 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 <gnome.h> /* for _() macro */
-#include "openpgp-utils.h"
-#include "mail-session.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <dirent.h>
-
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <termios.h>
-#include <unistd.h>
-#include <signal.h>
-
-#define d(x)
-
-static const gchar *pgp_path = NULL;
-static PgpType pgp_type = PGP_TYPE_NONE;
-
-
-static gchar *
-pgp_get_passphrase (const gchar *userid)
-{
- gchar *passphrase, *prompt, *type = NULL;
-
- switch (pgp_type) {
- case PGP_TYPE_GPG:
- type = "GnuPG";
- break;
- case PGP_TYPE_PGP5:
- type = "PGP5";
- break;
- case PGP_TYPE_PGP2:
- type = "PGP2.x";
- break;
- default:
- g_assert_not_reached ();
- }
-
- if (userid)
- prompt = g_strdup_printf (_("Please enter your %s passphrase for %s"),
- type, userid);
- else
- prompt = g_strdup_printf (_("Please enter your %s passphrase"),
- type);
-
- /* User the userid as a key if possible, else be generic and use the type */
- passphrase = mail_session_request_dialog (prompt, TRUE, userid ? userid : type, FALSE);
- g_free (prompt);
-
- return passphrase;
-}
-
-
-/**
- * openpgp_init:
- * @path: path to pgp
- * @type: pgp program type
- *
- * Initializes pgp variables
- **/
-void
-openpgp_init (const gchar *path, PgpType type)
-{
- pgp_path = path;
- pgp_type = type;
-}
-
-
-/**
- * openpgp_detect:
- * @text: input text
- *
- * Returns TRUE if it is found that the text contains a PGP encrypted
- * block otherwise returns FALSE.
- **/
-gboolean
-openpgp_detect (const gchar *text)
-{
- if (strstr (text, "-----BEGIN PGP MESSAGE-----"))
- return TRUE;
- return FALSE;
-}
-
-
-/**
- * openpgp_sign_detect:
- * @text: input text
- *
- * Returns TRUE if it is found that the text contains a PGP signed
- * block otherwise returns FALSE.
- **/
-gboolean
-openpgp_sign_detect (const gchar *text)
-{
- if (strstr (text, "-----BEGIN PGP SIGNED MESSAGE-----"))
- return TRUE;
- return FALSE;
-}
-
-static int
-cleanup_child (pid_t child)
-{
- int status;
- pid_t wait_result;
- sigset_t mask, omask;
-
- /* PGP5 closes fds before exiting, meaning this might be called
- * too early. So wait a bit for the result.
- */
- sigemptyset (&mask);
- sigaddset (&mask, SIGALRM);
- sigprocmask (SIG_BLOCK, &mask, &omask);
- alarm (1);
- wait_result = waitpid (child, &status, 0);
- alarm (0);
- sigprocmask (SIG_SETMASK, &omask, NULL);
-
- if (wait_result == -1 && errno == EINTR) {
- /* The child is hanging: send a friendly reminder. */
- kill (child, SIGTERM);
- sleep (1);
- wait_result = waitpid (child, &status, WNOHANG);
- if (wait_result == 0) {
- /* Still hanging; use brute force. */
- kill (child, SIGKILL);
- sleep (1);
- wait_result = waitpid (child, &status, WNOHANG);
- }
- }
-
- if (wait_result != -1 && WIFEXITED (status))
- return WEXITSTATUS (status);
- else
- return -1;
-}
-
-static void
-cleanup_before_exec (int fd)
-{
- int maxfd, i;
-
- maxfd = sysconf (_SC_OPEN_MAX);
- if (maxfd < 0)
- return;
-
- /* Loop over all fds. */
- for (i = 0; i < maxfd; i++) {
- if ((STDIN_FILENO != i) &&
- (STDOUT_FILENO != i) &&
- (STDERR_FILENO != i) &&
- (fd != i))
- close (i);
- }
-}
-
-static int
-crypto_exec_with_passwd (const char *path, char *argv[], const char *input, int inlen,
- int passwd_fds[], const char *passphrase,
- char **output, int *outlen, char **diagnostics)
-{
- fd_set fdset, write_fdset;
- int ip_fds[2], op_fds[2], diag_fds[2];
- int select_result, read_len, write_len;
- size_t tmp_len;
- pid_t child;
- char *buf, *diag_buf;
- const char *passwd_next, *input_next;
- size_t size, alloc_size, diag_size, diag_alloc_size;
- gboolean eof_seen, diag_eof_seen, passwd_eof_seen, input_eof_seen;
- size_t passwd_remaining, passwd_incr, input_remaining, input_incr;
- struct timeval timeout;
-
-
- if ((pipe (ip_fds) < 0 ) ||
- (pipe (op_fds) < 0 ) ||
- (pipe (diag_fds) < 0 )) {
- *diagnostics = g_strdup_printf ("Couldn't create pipe to %s: "
- "%s", pgp_path,
- g_strerror (errno));
- return 0;
- }
-
- if (!(child = fork ())) {
- /* In child */
-
- if ((dup2 (ip_fds[0], STDIN_FILENO) < 0 ) ||
- (dup2 (op_fds[1], STDOUT_FILENO) < 0 ) ||
- (dup2 (diag_fds[1], STDERR_FILENO) < 0 )) {
- _exit (255);
- }
-
- /* Dissociate from evolution-mail's controlling
- * terminal so that pgp/gpg won't be able to read from
- * it: PGP 2 will fall back to asking for the password
- * on /dev/tty if the passed-in password is incorrect.
- * This will make that fail rather than hanging.
- */
- setsid ();
-
- /* Close excess fds */
- cleanup_before_exec (passwd_fds[0]);
-
- execvp (path, argv);
- fprintf (stderr, "Could not execute %s: %s\n", argv[0],
- g_strerror (errno));
- _exit (255);
- } else if (child < 0) {
- *diagnostics = g_strdup_printf ("Cannot fork %s: %s",
- argv[0], g_strerror (errno));
- return 0;
- }
-
- /* Parent */
- close (ip_fds[0]);
- close (op_fds[1]);
- close (diag_fds[1]);
- close (passwd_fds[0]);
-
- timeout.tv_sec = 10; /* timeout in seconds */
- timeout.tv_usec = 0;
-
- size = diag_size = 0;
- alloc_size = 4096;
- diag_alloc_size = 1024;
- eof_seen = diag_eof_seen = FALSE;
-
- buf = g_malloc (alloc_size);
- diag_buf = g_malloc (diag_alloc_size);
-
- passwd_next = passphrase;
- passwd_remaining = passphrase ? strlen (passphrase) : 0;
- passwd_incr = fpathconf (passwd_fds[1], _PC_PIPE_BUF);
- /* Use a reasonable default value on error. */
- if (passwd_incr <= 0)
- passwd_incr = 1024;
- passwd_eof_seen = FALSE;
-
- input_next = input;
- input_remaining = inlen;
- input_incr = fpathconf (ip_fds[1], _PC_PIPE_BUF);
- if (input_incr <= 0)
- input_incr = 1024;
- input_eof_seen = FALSE;
-
- while (!(eof_seen && diag_eof_seen)) {
- FD_ZERO (&fdset);
- if (!eof_seen)
- FD_SET (op_fds[0], &fdset);
- if (!diag_eof_seen)
- FD_SET (diag_fds[0], &fdset);
-
- FD_ZERO (&write_fdset);
- if (!passwd_eof_seen)
- FD_SET (passwd_fds[1], &write_fdset);
- if (!input_eof_seen)
- FD_SET (ip_fds[1], &write_fdset);
-
- select_result = select (FD_SETSIZE, &fdset, &write_fdset,
- NULL, &timeout);
- if (select_result < 0) {
- if (errno == EINTR)
- continue;
- break;
- }
- if (select_result == 0) {
- /* timeout */
- break;
- }
-
- if (FD_ISSET (op_fds[0], &fdset)) {
- /* More output is available. */
-
- if (size + 4096 > alloc_size) {
- alloc_size += 4096;
- buf = g_realloc (buf , alloc_size);
- }
- read_len = read (op_fds[0], &buf[size],
- alloc_size - size - 1);
- if (read_len < 0) {
- if (errno == EINTR)
- continue;
- break;
- }
- if (read_len == 0)
- eof_seen = TRUE;
- size += read_len;
- }
-
- if (FD_ISSET(diag_fds[0], &fdset) ) {
- /* More stderr is available. */
-
- if (diag_size + 1024 > diag_alloc_size) {
- diag_alloc_size += 1024;
- diag_buf = g_realloc (diag_buf,
- diag_alloc_size);
- }
-
- read_len = read (diag_fds[0], &diag_buf[diag_size],
- diag_alloc_size - diag_size - 1);
- if (read_len < 0) {
- if (errno == EINTR)
- continue;
- break;
- }
- if (read_len == 0)
- diag_eof_seen = TRUE;
- diag_size += read_len;
- }
-
- if (FD_ISSET(passwd_fds[1], &write_fdset)) {
- /* Ready for more password input. */
-
- tmp_len = passwd_incr;
- if (tmp_len > passwd_remaining)
- tmp_len = passwd_remaining;
- write_len = write (passwd_fds[1], passwd_next,
- tmp_len);
- if (write_len < 0) {
- if (errno == EINTR)
- continue;
- break;
- }
- passwd_next += write_len;
- passwd_remaining -= write_len;
- if (passwd_remaining == 0) {
- close (passwd_fds[1]);
- passwd_eof_seen = TRUE;
- }
- }
-
- if (FD_ISSET(ip_fds[1], &write_fdset)) {
- /* Ready for more ciphertext input. */
-
- tmp_len = input_incr;
- if (tmp_len > input_remaining)
- tmp_len = input_remaining;
- write_len = write (ip_fds[1], input_next, tmp_len);
- if (write_len < 0) {
- if (errno == EINTR)
- continue;
- break;
- }
- input_next += write_len;
- input_remaining -= write_len;
- if (input_remaining == 0 ) {
- close (ip_fds[1]);
- input_eof_seen = TRUE;
- }
- }
- }
-
- buf[size] = 0;
- diag_buf[diag_size] = 0;
- close (op_fds[0]);
- close (diag_fds[0]);
-
- *output = buf;
- if (outlen)
- *outlen = size;
- *diagnostics = diag_buf;
-
- return cleanup_child (child);
-}
-
-/*----------------------------------------------------------------------*
- * Public crypto functions
- *----------------------------------------------------------------------*/
-
-/**
- * openpgp_decrypt:
- * @ciphertext: ciphertext to decrypt
- * @cipherlen: ciphertext length
- * @outlen: output length of the decrypted data (to be set by #openpgp_decrypt)
- * @ex: exception
- *
- * Returns an allocated buffer containing the decrypted ciphertext. If
- * the cleartext is plain text then you may treat it like a normal
- * string as it will be NUL terminated, however #outlen is also set in
- * the case that the cleartext is a binary stream.
- **/
-gchar *
-openpgp_decrypt (const gchar *ciphertext, gint cipherlen, gint *outlen, CamelException *ex)
-{
- char *argv[15];
- char *plaintext = NULL;
- char *diagnostics = NULL;
- char *passphrase;
- int passwd_fds[2];
- char passwd_fd[32];
- int retval, i;
-
- if (pgp_type == PGP_TYPE_NONE) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No GPG/PGP program available."));
- return NULL;
- }
-
- passphrase = pgp_get_passphrase (NULL);
- if (!passphrase) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No password provided."));
- return NULL;
- }
-
- if (pipe (passwd_fds) < 0) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Couldn't create pipe to GPG/PGP: %s"),
- g_strerror (errno));
- return NULL;
- }
-
- i = 0;
- switch (pgp_type) {
- case PGP_TYPE_GPG:
- argv[i++] = "gpg";
- argv[i++] = "--verbose";
- argv[i++] = "--yes";
- argv[i++] = "--batch";
-
- argv[i++] = "--output";
- argv[i++] = "-"; /* output to stdout */
-
- argv[i++] = "--decrypt";
-
- argv[i++] = "--passphrase-fd";
- sprintf (passwd_fd, "%d", passwd_fds[0]);
- argv[i++] = passwd_fd;
- break;
- case PGP_TYPE_PGP5:
- argv[i++] = "pgpv";
- argv[i++] = "-f";
- argv[i++] = "+batchmode=1";
-
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- break;
- case PGP_TYPE_PGP2:
- argv[i++] = "pgp";
- argv[i++] = "-f";
-
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- break;
- default:
- break;
- }
-
- argv[i++] = NULL;
-
- retval = crypto_exec_with_passwd (pgp_path, argv,
- ciphertext, cipherlen,
- passwd_fds, passphrase,
- &plaintext, outlen,
- &diagnostics);
- g_free (passphrase);
-
- if (retval != 0 || !*plaintext) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- "%s", diagnostics);
- g_free (plaintext);
- g_free (diagnostics);
- return NULL;
- }
-
- g_free (diagnostics);
-
- return plaintext;
-}
-
-
-/**
- * openpgp_encrypt:
- * @in: data to encrypt
- * @inlen: input length of input data
- * @recipients: An array of recipient ids
- * @sign: TRUE if you want to sign as well as encrypt
- * @userid: userid to use when signing (assuming #sign is TRUE)
- * @ex: exception
- *
- * Returns an allocated string containing the ciphertext.
- **/
-gchar *
-openpgp_encrypt (const gchar *in, gint inlen, const GPtrArray *recipients,
- gboolean sign, const gchar *userid, CamelException *ex)
-{
- GPtrArray *recipient_list = NULL;
- GPtrArray *argv = NULL;
- int retval, r;
- char *ciphertext = NULL;
- char *diagnostics = NULL;
- int passwd_fds[2];
- char passwd_fd[32];
- char *passphrase = NULL;
-
- if (pgp_type == PGP_TYPE_NONE) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No GPG/PGP program available."));
- return NULL;
- }
-
- if (sign) {
- /* we only need a passphrase if we intend on signing */
- passphrase = pgp_get_passphrase (NULL);
- if (!passphrase) {
- camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No password provided."));
- return NULL;
- }
- }
-
- if (pipe (passwd_fds) < 0) {
- g_free (passphrase);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Couldn't create pipe to GPG/PGP: %s"),
- g_strerror (errno));
- return NULL;
- }
-
- argv = g_ptr_array_new ();
- switch (pgp_type) {
- case PGP_TYPE_GPG:
- if (recipients->len == 0) {
- g_free (passphrase);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No recipients specified"));
- return NULL;
- }
-
- recipient_list = g_ptr_array_new ();
- for (r = 0; r < recipients->len; r++) {
- char *buf, *recipient;
-
- recipient = recipients->pdata[r];
- buf = g_strdup_printf ("-r %s", recipient);
- g_ptr_array_add (recipient_list, buf);
- g_free (recipient);
- }
-
- g_ptr_array_add (argv, "gpg");
-
- g_ptr_array_add (argv, "--verbose");
- g_ptr_array_add (argv, "--yes");
- g_ptr_array_add (argv, "--batch");
-
- g_ptr_array_add (argv, "--armor");
-
- for (r = 0; r < recipient_list->len; r++)
- g_ptr_array_add (argv, recipient_list->pdata[r]);
-
- g_ptr_array_add (argv, "--output");
- g_ptr_array_add (argv, "-"); /* output to stdout */
-
- g_ptr_array_add (argv, "--encrypt");
-
- if (sign) {
- g_ptr_array_add (argv, "--sign");
-
- g_ptr_array_add (argv, "-u");
- g_ptr_array_add (argv, (gchar *) userid);
-
- g_ptr_array_add (argv, "--passphrase-fd");
- sprintf (passwd_fd, "%d", passwd_fds[0]);
- g_ptr_array_add (argv, passwd_fd);
- }
- break;
- case PGP_TYPE_PGP5:
- if (recipients->len == 0) {
- g_free (passphrase);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No recipients specified"));
- return NULL;
- }
-
- recipient_list = g_ptr_array_new ();
- for (r = 0; r < recipients->len; r++) {
- char *buf, *recipient;
-
- recipient = recipients->pdata[r];
- buf = g_strdup_printf ("-r %s", recipient);
- g_ptr_array_add (recipient_list, buf);
- g_free (recipient);
- }
-
- g_ptr_array_add (argv, "pgpe");
-
- for (r = 0; r < recipient_list->len; r++)
- g_ptr_array_add (argv, recipient_list->pdata[r]);
-
- g_ptr_array_add (argv, "-f");
- g_ptr_array_add (argv, "-z");
- g_ptr_array_add (argv, "-a");
- g_ptr_array_add (argv, "-o");
- g_ptr_array_add (argv, "-"); /* output to stdout */
-
- if (sign) {
- g_ptr_array_add (argv, "-s");
-
- g_ptr_array_add (argv, "-u");
- g_ptr_array_add (argv, (gchar *) userid);
-
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- }
- break;
- case PGP_TYPE_PGP2:
- if (recipients->len == 0) {
- g_free (passphrase);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No recipients specified"));
- return NULL;
- }
-
- recipient_list = g_ptr_array_new ();
- for (r = 0; r < recipients->len; r++) {
- char *buf, *recipient;
-
- recipient = recipients->pdata[r];
- buf = g_strdup (recipient);
- g_ptr_array_add (recipient_list, buf);
- g_free (recipient);
- }
-
- g_ptr_array_add (argv, "pgp");
- g_ptr_array_add (argv, "-f");
- g_ptr_array_add (argv, "-e");
- g_ptr_array_add (argv, "-a");
- g_ptr_array_add (argv, "-o");
- g_ptr_array_add (argv, "-");
-
- for (r = 0; r < recipient_list->len; r++)
- g_ptr_array_add (argv, recipient_list->pdata[r]);
-
- if (sign) {
- g_ptr_array_add (argv, "-s");
-
- g_ptr_array_add (argv, "-u");
- g_ptr_array_add (argv, (gchar *) userid);
-
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- }
- break;
- default:
- break;
- }
-
- g_ptr_array_add (argv, NULL);
-
- retval = crypto_exec_with_passwd (pgp_path, (char **) argv->pdata,
- in, inlen, passwd_fds,
- passphrase, &ciphertext, NULL,
- &diagnostics);
-
- g_free (passphrase);
- g_ptr_array_free (argv, TRUE);
-
- if (retval != 0 || !*ciphertext) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- "%s", diagnostics);
- g_free (ciphertext);
- ciphertext = NULL;
- }
-
- if (recipient_list) {
- for (r = 0; r < recipient_list->len; r++)
- g_free (recipient_list->pdata[r]);
- g_ptr_array_free (recipient_list, TRUE);
- }
-
- g_free (diagnostics);
-
- return ciphertext;
-}
-
-
-/**
- * openpgp_clearsign:
- * @plaintext: plain readable text to clearsign
- * @userid: userid to sign with
- * @hash: Preferred hash function (md5 or sha1)
- * @ex: exception
- *
- * Returns an allocated string containing the clearsigned plaintext
- * using the preferred hash.
- **/
-gchar *
-openpgp_clearsign (const gchar *plaintext, const gchar *userid,
- PgpHashType hash, CamelException *ex)
-{
- char *argv[15];
- char *ciphertext = NULL;
- char *diagnostics = NULL;
- char *passphrase = NULL;
- char *hash_str = NULL;
- int passwd_fds[2];
- char passwd_fd[32];
- int retval, i;
-
- if (pgp_type == PGP_TYPE_NONE) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No GPG/PGP program available."));
- return NULL;
- }
-
- passphrase = pgp_get_passphrase (userid);
- if (!passphrase) {
- camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No password provided."));
- return NULL;
- }
-
- if (pipe (passwd_fds) < 0) {
- g_free (passphrase);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Couldn't create pipe to GPG/PGP: %s"),
- g_strerror (errno));
- return NULL;
- }
-
- switch (hash) {
- case PGP_HASH_TYPE_MD5:
- hash_str = "MD5";
- break;
- case PGP_HASH_TYPE_SHA1:
- hash_str = "SHA1";
- break;
- default:
- break;
- }
-
- i = 0;
- switch (pgp_type) {
- case PGP_TYPE_GPG:
- argv[i++] = "gpg";
-
- argv[i++] = "--clearsign";
-
- if (hash_str) {
- argv[i++] = "--digest-algo";
- argv[i++] = hash_str;
- }
-
- if (userid) {
- argv[i++] = "-u";
- argv[i++] = (char *) userid;
- }
-
- argv[i++] = "--verbose";
- argv[i++] = "--yes";
- argv[i++] = "--batch";
-
- argv[i++] = "--armor";
-
- argv[i++] = "--output";
- argv[i++] = "-"; /* output to stdout */
-
- argv[i++] = "--passphrase-fd";
- sprintf (passwd_fd, "%d", passwd_fds[0]);
- argv[i++] = passwd_fd;
- break;
- case PGP_TYPE_PGP5:
- /* FIXME: modify to respect hash */
- argv[i++] = "pgps";
-
- if (userid) {
- argv[i++] = "-u";
- argv[i++] = (char *) userid;
- }
-
- argv[i++] = "-f";
- argv[i++] = "-z";
- argv[i++] = "-a";
- argv[i++] = "-o";
- argv[i++] = "-"; /* output to stdout */
-
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- break;
- case PGP_TYPE_PGP2:
- /* FIXME: modify to respect hash */
- argv[i++] = "pgp";
-
- if (userid) {
- argv[i++] = "-u";
- argv[i++] = (char *) userid;
- }
-
- argv[i++] = "-f";
- argv[i++] = "-a";
- argv[i++] = "-o";
- argv[i++] = "-";
-
- argv[i++] = "-st";
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- break;
- default:
- break;
- }
-
- argv[i++] = NULL;
-
- retval = crypto_exec_with_passwd (pgp_path, argv,
- plaintext, strlen (plaintext),
- passwd_fds, passphrase,
- &ciphertext, NULL,
- &diagnostics);
-
- g_free (passphrase);
-
- if (retval != 0 || !*ciphertext) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- "%s", diagnostics);
- g_free (ciphertext);
- ciphertext = NULL;
- }
-
- g_free (diagnostics);
-
- return ciphertext;
-}
-
-
-/**
- * openpgp_sign:
- * @in: input data to sign
- * @inlen: length of input data
- * @userid: userid to sign with
- * @hash: preferred hash type (md5 or sha1)
- * @ex: exception
- *
- * Returns an allocated string containing the detached signature using
- * the preferred hash.
- **/
-gchar *
-openpgp_sign (const gchar *in, gint inlen, const gchar *userid,
- PgpHashType hash, CamelException *ex)
-{
- char *argv[20];
- char *ciphertext = NULL;
- char *diagnostics = NULL;
- char *passphrase = NULL;
- char *hash_str = NULL;
- int passwd_fds[2];
- char passwd_fd[32];
- int retval, i;
-
- if (pgp_type == PGP_TYPE_NONE) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No GPG/PGP program available."));
- return NULL;
- }
-
- passphrase = pgp_get_passphrase (userid);
- if (!passphrase) {
- camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No password provided."));
- return NULL;
- }
-
- if (pipe (passwd_fds) < 0) {
- g_free (passphrase);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Couldn't create pipe to GPG/PGP: %s"),
- g_strerror (errno));
- return NULL;
- }
-
- switch (hash) {
- case PGP_HASH_TYPE_MD5:
- hash_str = "MD5";
- break;
- case PGP_HASH_TYPE_SHA1:
- hash_str = "SHA1";
- break;
- default:
- break;
- }
-
- i = 0;
- switch (pgp_type) {
- case PGP_TYPE_GPG:
- argv[i++] = "gpg";
-
- argv[i++] = "--sign";
- argv[i++] = "-b";
- if (hash_str) {
- argv[i++] = "--digest-algo";
- argv[i++] = hash_str;
- }
-
- if (userid) {
- argv[i++] = "-u";
- argv[i++] = (char *) userid;
- }
-
- argv[i++] = "--verbose";
- argv[i++] = "--yes";
- argv[i++] = "--batch";
-
- argv[i++] = "--armor";
-
- argv[i++] = "--output";
- argv[i++] = "-"; /* output to stdout */
-
- argv[i++] = "--passphrase-fd";
- sprintf (passwd_fd, "%d", passwd_fds[0]);
- argv[i++] = passwd_fd;
- break;
- case PGP_TYPE_PGP5:
- /* FIXME: respect hash */
- argv[i++] = "pgps";
-
- if (userid) {
- argv[i++] = "-u";
- argv[i++] = (char *) userid;
- }
-
- argv[i++] = "-b";
- argv[i++] = "-f";
- argv[i++] = "-z";
- argv[i++] = "-a";
- argv[i++] = "-o";
- argv[i++] = "-"; /* output to stdout */
-
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- break;
- case PGP_TYPE_PGP2:
- /* FIXME: respect hash */
- argv[i++] = "pgp";
-
- if (userid) {
- argv[i++] = "-u";
- argv[i++] = (char *) userid;
- }
-
- argv[i++] = "-f";
- argv[i++] = "-a";
- argv[i++] = "-o";
- argv[i++] = "-";
-
- argv[i++] = "-sb"; /* create a detached signature */
- sprintf (passwd_fd, "PGPPASSFD=%d", passwd_fds[0]);
- putenv (passwd_fd);
- break;
- default:
- break;
- }
-
- argv[i++] = NULL;
-
- retval = crypto_exec_with_passwd (pgp_path, argv,
- in, inlen,
- passwd_fds, passphrase,
- &ciphertext, NULL,
- &diagnostics);
-
- g_free (passphrase);
-
- if (retval != 0 || !*ciphertext) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- "%s", diagnostics);
- g_free (ciphertext);
- ciphertext = NULL;
- }
-
- g_free (diagnostics);
-
- return ciphertext;
-}
-
-static char *
-swrite (const char *data, int len)
-{
- char *template;
- int fd;
-
- template = g_strdup ("/tmp/evolution-pgp.XXXXXX");
- fd = mkstemp (template);
- if (fd == -1) {
- g_free (template);
- return NULL;
- }
-
- write (fd, data, len);
- close (fd);
-
- return template;
-}
-
-gboolean
-openpgp_verify (const gchar *in, gint inlen, const gchar *sigin, gint siglen, CamelException *ex)
-{
- char *argv[20];
- char *cleartext = NULL;
- char *diagnostics = NULL;
- int passwd_fds[2];
- char *sigfile = NULL;
- int retval, i, clearlen;
- gboolean valid = TRUE;
-
-
- if (pgp_type == PGP_TYPE_NONE) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("No GPG/PGP program available."));
- return FALSE;
- }
-
- if (pipe (passwd_fds) < 0) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Couldn't create pipe to GPG/PGP: %s"),
- g_strerror (errno));
- return FALSE;
- }
-
- if (sigin != NULL && siglen) {
- /* We are going to verify a detached signature so save
- the signature to a temp file. */
- sigfile = swrite (sigin, siglen);
- if (!sigfile) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Couldn't create temp file: %s"),
- g_strerror (errno));
- return FALSE;
- }
- }
-
- i = 0;
- switch (pgp_type) {
- case PGP_TYPE_GPG:
- argv[i++] = "gpg";
-
- argv[i++] = "--verify";
-
- if (sigin != NULL && siglen)
- argv[i++] = sigfile;
-
- argv[i++] = "-";
-
- /*argv[i++] = "--verbose";*/
- /*argv[i++] = "--yes";*/
- /*argv[i++] = "--batch";*/
- break;
- case PGP_TYPE_PGP5:
- argv[i++] = "pgpv";
-
- argv[i++] = "-z";
-
- if (sigin != NULL && siglen)
- argv[i++] = sigfile;
-
- argv[i++] = "-f";
-
- break;
- case PGP_TYPE_PGP2:
- argv[i++] = "pgp";
-
- if (sigin != NULL && siglen)
- argv[i++] = sigfile;
-
- argv[i++] = "-f";
-
- break;
- default:
- break;
- }
-
- argv[i++] = NULL;
-
- clearlen = 0;
- retval = crypto_exec_with_passwd (pgp_path, argv,
- in, inlen,
- passwd_fds, NULL,
- &cleartext, &clearlen,
- &diagnostics);
-
- /* cleanup */
- if (sigfile) {
- unlink (sigfile);
- g_free (sigfile);
- }
-
- if (retval != 0) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- "%s", diagnostics);
- valid = FALSE;
- }
-
- g_free (diagnostics);
- g_free (cleartext);
-
- return valid;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 13:26:42 +0800