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gimp/plug-ins/common/mail.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* Copyright (C) 1997 Daniel Risacher
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/*
* GUMP - Gimp Useless Mail Plugin
* (or Gump Useless Mail Plugin if you prefer)
*
* by Adrian Likins <adrian@gimp.org>
* MIME encapsulation by Reagan Blundell <reagan@emails.net>
*
* As always: The utility of this plugin is left as an exercise for
* the reader
*
*/
#include "config.h"
#include <string.h>
#ifdef SENDMAIL
#include <sys/types.h>
#include <sys/wait.h>
#endif
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define BUFFER_SIZE 256
#define PLUG_IN_PROC "plug-in-mail-image"
#define PLUG_IN_BINARY "mail"
#define PLUG_IN_ROLE "gimp-mail"
typedef struct
{
gchar filename[BUFFER_SIZE];
gchar receipt[BUFFER_SIZE];
gchar from[BUFFER_SIZE];
gchar subject[BUFFER_SIZE];
gchar comment[BUFFER_SIZE];
} m_info;
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static GimpPDBStatusType send_image (const gchar *filename,
gint32 image_ID,
gint32 drawable_ID,
gint32 run_mode);
static gboolean send_dialog (void);
static void mail_entry_callback (GtkWidget *widget,
gchar *data);
static gboolean valid_file (const gchar *filename);
static gchar * find_extension (const gchar *filename);
#ifdef SENDMAIL
static void mesg_body_callback (GtkTextBuffer *buffer,
gpointer data);
static gchar * sendmail_content_type (const gchar *filename);
static void sendmail_create_headers (FILE *mailpipe);
static gboolean sendmail_to64 (const gchar *filename,
FILE *outfile,
GError **error);
static FILE * sendmail_pipe (gchar **cmd,
GPid *pid);
#endif
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static m_info mail_info =
{
"", "", "", "", ""
};
static gchar *mesg_body = NULL;
MAIN ()
static void
query (void)
{
gchar *email_bin;
static const GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
{ GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
{ GIMP_PDB_STRING, "to-address", "The email address to send to" },
{ GIMP_PDB_STRING, "from-address", "The email address for the From: field" },
{ GIMP_PDB_STRING, "subject", "The subject" },
{ GIMP_PDB_STRING, "comment", "The Comment" },
{ GIMP_PDB_INT32, "encapsulation", "ignored" }
};
/* Check if xdg-email or sendmail is installed.
* TODO: allow setting the location of the executable in preferences.
*/
#ifdef SENDMAIL
if (strlen (SENDMAIL) == 0)
{
email_bin = g_find_program_in_path ("sendmail");
}
else
{
/* If a directory has been set at build time, we assume that sendmail
* can only be in this directory. */
email_bin = g_build_filename (SENDMAIL, "sendmail", NULL);
if (! g_file_test (email_bin, G_FILE_TEST_IS_EXECUTABLE))
{
g_free (email_bin);
email_bin = NULL;
}
}
#else
email_bin = g_find_program_in_path ("xdg-email");
#endif
if (email_bin == NULL)
return;
gimp_install_procedure (PLUG_IN_PROC,
N_("Send the image by email"),
#ifdef SENDMAIL
"Sendmail is used to send emails and must be properly configured.",
#else /* xdg-email */
"The preferred email composer is used to send emails and must be properly configured.",
#endif
"Adrian Likins, Reagan Blundell",
"Adrian Likins, Reagan Blundell, Daniel Risacher, "
"Spencer Kimball and Peter Mattis",
"1995-1997",
N_("Send by E_mail..."),
"*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/File/Send");
gimp_plugin_icon_register (PLUG_IN_PROC, GIMP_ICON_TYPE_ICON_NAME,
(const guint8 *) GIMP_ICON_EDIT);
g_free (email_bin);
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint32 image_ID;
gint32 drawable_ID;
INIT_I18N ();
run_mode = param[0].data.d_int32;
image_ID = param[1].data.d_image;
drawable_ID = param[2].data.d_drawable;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
if (strcmp (name, PLUG_IN_PROC) == 0)
{
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_PROC, &mail_info);
{
gchar *filename = gimp_image_get_filename (image_ID);
if (filename)
{
gchar *basename = g_filename_display_basename (filename);
g_strlcpy (mail_info.filename, basename, BUFFER_SIZE);
g_free (basename);
g_free (filename);
}
}
if (! send_dialog ())
status = GIMP_PDB_CANCEL;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams < 8)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
g_strlcpy (mail_info.filename,
param[3].data.d_string, BUFFER_SIZE);
g_strlcpy (mail_info.receipt,
param[4].data.d_string, BUFFER_SIZE);
g_strlcpy (mail_info.from,
param[5].data.d_string, BUFFER_SIZE);
g_strlcpy (mail_info.subject,
param[6].data.d_string, BUFFER_SIZE);
g_strlcpy (mail_info.comment,
param[7].data.d_string, BUFFER_SIZE);
}
break;
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_PROC, &mail_info);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
status = send_image (mail_info.filename,
image_ID,
drawable_ID,
run_mode);
if (status == GIMP_PDB_SUCCESS)
{
if (mesg_body)
g_strlcpy (mail_info.comment, mesg_body, BUFFER_SIZE);
gimp_set_data (PLUG_IN_PROC, &mail_info, sizeof (m_info));
}
}
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
values[0].data.d_status = status;
}
static GimpPDBStatusType
send_image (const gchar *filename,
gint32 image_ID,
gint32 drawable_ID,
gint32 run_mode)
{
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gchar *ext;
gchar *tmpname;
#ifndef SENDMAIL /* xdg-email */
gchar *mailcmd[9];
gchar *filepath = NULL;
GFile *tmp_dir = NULL;
GFileEnumerator *enumerator;
gint i;
#else /* SENDMAIL */
gchar *mailcmd[3];
GPid mailpid;
FILE *mailpipe = NULL;
#endif
GError *error = NULL;
ext = find_extension (filename);
if (ext == NULL)
return GIMP_PDB_CALLING_ERROR;
/* get a temp name with the right extension and save into it. */
tmpname = gimp_temp_name (ext + 1);
if (! (gimp_file_save (run_mode,
image_ID,
drawable_ID,
tmpname,
tmpname) && valid_file (tmpname)))
{
goto error;
}
#ifndef SENDMAIL /* xdg-email */
/* From xdg-email doc:
* "Some e-mail applications require the file to remain present
* after xdg-email returns."
* As a consequence, the file cannot be removed at the end of the
* function. We actually have no way to ever know *when* the file can
* be removed since the caller could leave the email window opened for
* hours. Yet we still want to clean sometimes and not have temporary
* images piling up.
* So I use a known directory that we control under $GIMP_DIRECTORY/tmp/,
* and clean it out each time the plugin runs. This means that *if* you
* are in the above case (your email client requires the file to stay
* alive), * you cannot run twice the plugin at the same time.
*/
tmp_dir = gimp_directory_file ("tmp", PLUG_IN_PROC, NULL);
if (g_mkdir_with_parents (gimp_file_get_utf8_name (tmp_dir),
S_IRUSR | S_IWUSR | S_IXUSR) == -1)
{
g_message ("Temporary directory %s could not be created.",
gimp_file_get_utf8_name (tmp_dir));
g_error_free (error);
goto error;
}
enumerator = g_file_enumerate_children (tmp_dir,
G_FILE_ATTRIBUTE_STANDARD_TYPE,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
NULL, NULL);
if (enumerator)
{
GFileInfo *info;
while ((info = g_file_enumerator_next_file (enumerator,
NULL, NULL)))
{
if (g_file_info_get_file_type (info) == G_FILE_TYPE_REGULAR)
{
GFile *file = g_file_enumerator_get_child (enumerator, info);
g_file_delete (file, NULL, NULL);
g_object_unref (file);
}
g_object_unref (info);
}
g_object_unref (enumerator);
}
filepath = g_build_filename (gimp_file_get_utf8_name (tmp_dir),
mail_info.filename, NULL);
g_rename (tmpname, filepath);
mailcmd[0] = g_strdup ("xdg-email");
mailcmd[1] = "--attach";
mailcmd[2] = filepath;
i = 3;
if (strlen (mail_info.subject) > 0)
{
mailcmd[i++] = "--subject";
mailcmd[i++] = mail_info.subject;
}
if (strlen (mail_info.comment) > 0)
{
mailcmd[i++] = "--body";
mailcmd[i++] = mail_info.comment;
}
if (strlen (mail_info.receipt) > 0)
{
mailcmd[i++] = mail_info.receipt;
}
mailcmd[i] = NULL;
if (! g_spawn_async (NULL, mailcmd, NULL,
G_SPAWN_SEARCH_PATH,
NULL, NULL, NULL, &error))
{
g_message ("%s", error->message);
g_error_free (error);
goto error;
}
#else /* SENDMAIL */
/* construct the "sendmail user@location" line */
if (strlen (SENDMAIL) == 0)
mailcmd[0] = g_strdup ("sendmail");
else
mailcmd[0] = g_build_filename (SENDMAIL, "sendmail", NULL);
mailcmd[1] = mail_info.receipt;
mailcmd[2] = NULL;
/* create a pipe to sendmail */
mailpipe = sendmail_pipe (mailcmd, &mailpid);
if (mailpipe == NULL)
return GIMP_PDB_EXECUTION_ERROR;
sendmail_create_headers (mailpipe);
fflush (mailpipe);
if (! sendmail_to64 (tmpname, mailpipe, &error))
{
g_message ("%s", error->message);
g_error_free (error);
goto error;
}
fprintf (mailpipe, "\n--GUMP-MIME-boundary--\n");
#endif
goto cleanup;
error:
/* stop sendmail from doing anything */
#ifdef SENDMAIL
kill (mailpid, SIGINT);
#endif
status = GIMP_PDB_EXECUTION_ERROR;
cleanup:
/* close out the sendmail process */
#ifdef SENDMAIL
if (mailpipe)
{
fclose (mailpipe);
waitpid (mailpid, NULL, 0);
g_spawn_close_pid (mailpid);
}
/* delete the tmpfile that was generated */
g_unlink (tmpname);
#else
if (tmp_dir)
g_object_unref (tmp_dir);
if (filepath)
g_free (filepath);
#endif
g_free (mailcmd[0]);
g_free (tmpname);
return status;
}
static gboolean
send_dialog (void)
{
GtkWidget *dlg;
GtkWidget *main_vbox;
GtkWidget *entry;
GtkWidget *grid;
#ifdef SENDMAIL
GtkWidget *scrolled_window;
GtkWidget *text_view;
GtkTextBuffer *text_buffer;
#endif
gchar *gump_from;
gint row = 0;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, FALSE);
/* check gimprc for a preferred "From:" address */
gump_from = gimp_gimprc_query ("gump-from");
if (gump_from)
{
g_strlcpy (mail_info.from, gump_from, BUFFER_SIZE);
g_free (gump_from);
}
dlg = gimp_dialog_new (_("Send by Email"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Send"), GTK_RESPONSE_OK,
NULL);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (dlg),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dlg));
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dlg))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
/* grid */
grid = gtk_grid_new ();
gtk_box_pack_start (GTK_BOX (main_vbox), grid, FALSE, FALSE, 0);
gtk_widget_show (grid);
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
/* Filename entry */
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_max_length (GTK_ENTRY (entry), BUFFER_SIZE - 1);
gtk_entry_set_text (GTK_ENTRY (entry), mail_info.filename);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
_("_Filename:"), 0.0, 0.5,
entry, 1);
g_signal_connect (entry, "changed",
G_CALLBACK (mail_entry_callback),
mail_info.filename);
gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE);
#ifdef SENDMAIL
/* To entry */
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_max_length (GTK_ENTRY (entry), BUFFER_SIZE - 1);
gtk_entry_set_text (GTK_ENTRY (entry), mail_info.receipt);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
C_("email-address", "_To:"), 0.0, 0.5,
entry, 1);
g_signal_connect (entry, "changed",
G_CALLBACK (mail_entry_callback),
mail_info.receipt);
gtk_widget_grab_focus (entry);
/* From entry */
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_max_length (GTK_ENTRY (entry), BUFFER_SIZE - 1);
gtk_entry_set_text (GTK_ENTRY (entry), mail_info.from);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
C_("email-address", "_From:"), 0.0, 0.5,
entry, 1);
g_signal_connect (entry, "changed",
G_CALLBACK (mail_entry_callback),
mail_info.from);
/* Subject entry */
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_max_length (GTK_ENTRY (entry), BUFFER_SIZE - 1);
gtk_entry_set_text (GTK_ENTRY (entry), mail_info.subject);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
_("S_ubject:"), 0.0, 0.5,
entry, 1);
g_signal_connect (entry, "changed",
G_CALLBACK (mail_entry_callback),
mail_info.subject);
/* Body */
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_SHADOW_IN);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX (main_vbox), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
text_buffer = gtk_text_buffer_new (NULL);
g_signal_connect (text_buffer, "changed",
G_CALLBACK (mesg_body_callback),
NULL);
gtk_text_buffer_set_text (text_buffer, mail_info.comment, -1);
text_view = gtk_text_view_new_with_buffer (text_buffer);
g_object_unref (text_buffer);
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
gtk_widget_show (text_view);
#endif
gtk_widget_show (dlg);
run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dlg);
return run;
}
static gboolean
valid_file (const gchar *filename)
{
struct stat buf;
return g_stat (filename, &buf) == 0 && buf.st_size > 0;
}
static gchar *
find_extension (const gchar *filename)
{
gchar *filename_copy;
gchar *ext;
/* we never free this copy - aren't we evil! */
filename_copy = g_strdup (filename);
/* find the extension, boy! */
ext = strrchr (filename_copy, '.');
while (TRUE)
{
if (!ext || ext[1] == '\0' || strchr (ext, G_DIR_SEPARATOR))
{
g_message (_("some sort of error with the file extension "
"or lack thereof"));
return NULL;
}
if (0 != g_ascii_strcasecmp (ext, ".gz") &&
0 != g_ascii_strcasecmp (ext, ".bz2"))
{
return ext;
}
else
{
/* we found something, loop back, and look again */
*ext = 0;
ext = strrchr (filename_copy, '.');
}
}
g_free (filename_copy);
return ext;
}
static void
mail_entry_callback (GtkWidget *widget,
gchar *data)
{
g_strlcpy (data, gtk_entry_get_text (GTK_ENTRY (widget)), BUFFER_SIZE);
}
#ifdef SENDMAIL
static void
mesg_body_callback (GtkTextBuffer *buffer,
gpointer data)
{
GtkTextIter start_iter;
GtkTextIter end_iter;
gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
g_free (mesg_body);
mesg_body = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
}
static gchar *
sendmail_content_type (const gchar *filename)
{
/* This function returns a MIME Content-type: value based on the
filename it is given. */
const gchar *type_mappings[20] =
{
"gif" , "image/gif",
"jpg" , "image/jpeg",
"jpeg", "image/jpeg",
"tif" , "image/tiff",
"tiff", "image/tiff",
"png" , "image/png",
"g3" , "image/g3fax",
"ps" , "application/postscript",
"eps" , "application/postscript",
NULL, NULL
};
gchar *ext;
gint i;
ext = find_extension (filename);
if (!ext)
{
return g_strdup ("application/octet-stream");
}
i = 0;
ext += 1;
while (type_mappings[i])
{
if (g_ascii_strcasecmp (ext, type_mappings[i]) == 0)
{
return g_strdup (type_mappings[i + 1]);
}
i += 2;
}
return g_strdup_printf ("image/x-%s", ext);
}
static void
sendmail_create_headers (FILE *mailpipe)
{
/* create all the mail header stuff. Feel free to add your own */
/* It is advisable to leave the X-Mailer header though, as */
/* there is a possibility of a Gimp mail scanner/reader in the */
/* future. It will probabaly need that header. */
fprintf (mailpipe, "To: %s \n", mail_info.receipt);
fprintf (mailpipe, "Subject: %s \n", mail_info.subject);
if (strlen (mail_info.from) > 0)
fprintf (mailpipe, "From: %s \n", mail_info.from);
fprintf (mailpipe, "X-Mailer: GIMP Useless Mail plug-in %s\n", GIMP_VERSION);
fprintf (mailpipe, "MIME-Version: 1.0\n");
fprintf (mailpipe, "Content-type: multipart/mixed; "
"boundary=GUMP-MIME-boundary\n");
fprintf (mailpipe, "\n\n");
fprintf (mailpipe, "--GUMP-MIME-boundary\n");
fprintf (mailpipe, "Content-type: text/plain; charset=UTF-8\n\n");
if (mesg_body)
fprintf (mailpipe, "%s", mesg_body);
fprintf (mailpipe, "\n\n");
{
gchar *content = sendmail_content_type (mail_info.filename);
fprintf (mailpipe, "--GUMP-MIME-boundary\n");
fprintf (mailpipe, "Content-type: %s\n", content);
fprintf (mailpipe, "Content-transfer-encoding: base64\n");
fprintf (mailpipe, "Content-disposition: attachment; filename=\"%s\"\n",
mail_info.filename);
fprintf (mailpipe, "Content-description: %s\n\n", mail_info.filename);
g_free (content);
}
}
static gboolean
sendmail_to64 (const gchar *filename,
FILE *outfile,
GError **error)
{
GMappedFile *infile;
const guchar *in;
gchar out[2048];
gint state = 0;
gint save = 0;
gsize len;
gsize bytes;
gsize c;
infile = g_mapped_file_new (filename, FALSE, error);
if (! infile)
return FALSE;
in = (const guchar *) g_mapped_file_get_contents (infile);
len = g_mapped_file_get_length (infile);
for (c = 0; c < len;)
{
gsize step = MIN (1024, len - c);
bytes = g_base64_encode_step (in + c, step, TRUE, out, &state, &save);
fwrite (out, 1, bytes, outfile);
c += step;
}
bytes = g_base64_encode_close (TRUE, out, &state, &save);
fwrite (out, 1, bytes, outfile);
g_mapped_file_unref (infile);
return TRUE;
}
static FILE *
sendmail_pipe (gchar **cmd,
GPid *pid)
{
gint fd;
GError *err = NULL;
if (! g_spawn_async_with_pipes (NULL, cmd, NULL,
G_SPAWN_DO_NOT_REAP_CHILD |
G_SPAWN_SEARCH_PATH,
NULL, NULL, pid, &fd, NULL, NULL, &err))
{
g_message (_("Could not start sendmail (%s)"), err->message);
g_error_free (err);
*pid = -1;
return NULL;
}
return fdopen (fd, "wb");
}
#endif
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