Desktop
/* $Id: compose.c,v 1.30 2010/10/02 21:44:13 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Mailer */
/* 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, version 3 of the License.
*
* 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/>. */
#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <gdk/gdkkeysyms.h>
#include <Desktop.h>
#include "callbacks.h"
#include "compose.h"
#include "../config.h"
/* Compose */
/* private */
/* types */
struct _Compose
{
Mailer * mailer;
/* sending mail */
pid_t pid;
int fd;
char * buf;
size_t buf_len;
size_t buf_pos;
GIOChannel * channel;
GtkWidget * snd_window;
GtkWidget * snd_progress;
/* widgets */
GtkWidget * window;
GtkWidget * from;
GtkWidget * to;
GtkWidget * tb_cc;
GtkWidget * cc;
GtkWidget * tb_bcc;
GtkWidget * bcc;
GtkWidget * subject;
GtkWidget * view;
GtkWidget * statusbar;
gint statusbar_id;
GtkWidget * ab_window;
};
/* constants */
#define SENDMAIL "/usr/sbin/sendmail"
static DesktopMenu _menu_file[] =
{
{ "_New message", G_CALLBACK(on_compose_file_new), "stock_mail-compose",
GDK_CONTROL_MASK, GDK_N },
{ "", NULL, NULL, 0, 0 },
{ "_Save", NULL, GTK_STOCK_SAVE, GDK_CONTROL_MASK, GDK_S },
{ "Save _as...", NULL, GTK_STOCK_SAVE_AS, 0, 0 },
{ "", NULL, NULL, 0, 0 },
{ "_Send", G_CALLBACK(on_compose_file_send), "stock_mail-send",
GDK_CONTROL_MASK, GDK_Return },
{ "", NULL, NULL, 0, 0 },
{ "_Close", G_CALLBACK(on_compose_file_close), GTK_STOCK_CLOSE,
GDK_CONTROL_MASK, GDK_W },
{ NULL, NULL, NULL, 0, 0 }
};
static DesktopMenu _menu_edit[] =
{
{ "_Undo", NULL, GTK_STOCK_UNDO, GDK_CONTROL_MASK, GDK_Z },
{ "_Redo", NULL, GTK_STOCK_REDO, GDK_CONTROL_MASK, GDK_Y },
{ "", NULL, NULL, 0, 0 },
{ "_Cut", NULL, GTK_STOCK_CUT, GDK_CONTROL_MASK, GDK_X },
{ "_Copy", NULL, GTK_STOCK_COPY, GDK_CONTROL_MASK, GDK_C },
{ "_Paste", NULL, GTK_STOCK_PASTE, GDK_CONTROL_MASK, GDK_P },
{ NULL, NULL, NULL, 0, 0 }
};
static DesktopMenu _menu_view[] =
{
{ "_CC field", G_CALLBACK(on_compose_view_cc), NULL, 0, 0 },
{ "_BCC field", G_CALLBACK(on_compose_view_bcc), NULL, 0, 0 },
{ NULL, NULL, NULL, 0, 0 }
};
static DesktopMenu _menu_help[] =
{
#if GTK_CHECK_VERSION(2, 6, 0)
{ "_About", G_CALLBACK(on_compose_help_about), GTK_STOCK_ABOUT, 0, 0 },
#else
{ "_About", G_CALLBACK(on_compose_help_about), NULL, 0, 0 },
#endif
{ NULL, NULL, NULL, 0, 0 }
};
static DesktopMenubar _compose_menubar[] =
{
{ "_File", _menu_file },
{ "_Edit", _menu_edit },
{ "_View", _menu_view },
{ "_Help", _menu_help },
{ NULL, NULL }
};
static DesktopToolbar _compose_toolbar[] =
{
{ "Send", G_CALLBACK(on_compose_send), "stock_mail-send", 0, 0, NULL },
{ "", NULL, NULL, 0, 0, NULL },
{ "Save", G_CALLBACK(on_compose_save), GTK_STOCK_SAVE, 0, 0, NULL },
{ "", NULL, NULL, 0, 0, NULL },
{ "Attach", NULL, "stock_attach", 0, 0, NULL },
{ NULL, NULL, NULL, 0, 0, NULL }
};
/* public */
/* compose_new */
static GtkWidget * _new_text_view(Mailer * mailer);
Compose * compose_new(Mailer * mailer)
{
Compose * compose;
GtkAccelGroup * group;
GtkWidget * vbox;
GtkWidget * toolbar;
GtkToolItem * toolitem;
GtkSizeGroup * sizegroup;
GtkWidget * widget;
if((compose = malloc(sizeof(*compose))) == NULL)
{
mailer_error(mailer, strerror(errno), 0);
return NULL;
}
compose->mailer = mailer;
group = gtk_accel_group_new();
compose->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_add_accel_group(GTK_WINDOW(compose->window), group);
gtk_window_set_title(GTK_WINDOW(compose->window), PACKAGE " - Compose");
gtk_window_set_default_size(GTK_WINDOW(compose->window), 512, 384);
g_signal_connect_swapped(G_OBJECT(compose->window), "delete-event",
G_CALLBACK(on_compose_closex), compose);
vbox = gtk_vbox_new(FALSE, 0);
/* menubar */
widget = desktop_menubar_create(_compose_menubar, compose, group);
gtk_box_pack_start(GTK_BOX(vbox), widget, FALSE, FALSE, 0);
/* toolbar */
toolbar = desktop_toolbar_create(_compose_toolbar, compose, group);
gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, TRUE, 0);
/* from */
sizegroup = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
toolbar = gtk_toolbar_new();
widget = gtk_label_new(" From: ");
gtk_size_group_add_widget(sizegroup, widget);
toolitem = gtk_tool_item_new();
gtk_container_add(GTK_CONTAINER(toolitem), widget);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
compose->from = gtk_combo_box_entry_new_text();
toolitem = gtk_tool_item_new();
gtk_tool_item_set_expand(toolitem, TRUE);
gtk_container_add(GTK_CONTAINER(toolitem), compose->from);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
/* to */
toolbar = gtk_toolbar_new();
widget = gtk_label_new(" To: ");
gtk_size_group_add_widget(sizegroup, widget);
toolitem = gtk_tool_item_new();
gtk_container_add(GTK_CONTAINER(toolitem), widget);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
compose->to = gtk_entry_new();
toolitem = gtk_tool_item_new();
gtk_tool_item_set_expand(toolitem, TRUE);
gtk_container_add(GTK_CONTAINER(toolitem), compose->to);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
/* cc */
compose->tb_cc = gtk_toolbar_new();
widget = gtk_label_new(" CC: ");
gtk_size_group_add_widget(sizegroup, widget);
toolitem = gtk_tool_item_new();
gtk_container_add(GTK_CONTAINER(toolitem), widget);
gtk_toolbar_insert(GTK_TOOLBAR(compose->tb_cc), toolitem, -1);
compose->cc = gtk_entry_new();
toolitem = gtk_tool_item_new();
gtk_tool_item_set_expand(toolitem, TRUE);
gtk_container_add(GTK_CONTAINER(toolitem), compose->cc);
gtk_toolbar_insert(GTK_TOOLBAR(compose->tb_cc), toolitem, -1);
gtk_box_pack_start(GTK_BOX(vbox), compose->tb_cc, FALSE, FALSE, 0);
/* bcc */
compose->tb_bcc = gtk_toolbar_new();
widget = gtk_label_new(" BCC: ");
gtk_size_group_add_widget(sizegroup, widget);
toolitem = gtk_tool_item_new();
gtk_container_add(GTK_CONTAINER(toolitem), widget);
gtk_toolbar_insert(GTK_TOOLBAR(compose->tb_bcc), toolitem, -1);
compose->bcc = gtk_entry_new();
toolitem = gtk_tool_item_new();
gtk_tool_item_set_expand(toolitem, TRUE);
gtk_container_add(GTK_CONTAINER(toolitem), compose->bcc);
gtk_toolbar_insert(GTK_TOOLBAR(compose->tb_bcc), toolitem, -1);
gtk_box_pack_start(GTK_BOX(vbox), compose->tb_bcc, FALSE, FALSE, 0);
/* subject */
toolbar = gtk_toolbar_new();
widget = gtk_label_new(" Subject: ");
gtk_size_group_add_widget(sizegroup, widget);
toolitem = gtk_tool_item_new();
gtk_container_add(GTK_CONTAINER(toolitem), widget);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
compose->subject = gtk_entry_new();
toolitem = gtk_tool_item_new();
gtk_tool_item_set_expand(toolitem, TRUE);
gtk_container_add(GTK_CONTAINER(toolitem), compose->subject);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
/* view */
compose->view = _new_text_view(mailer);
widget = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(widget),
GTK_SHADOW_ETCHED_IN);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_container_add(GTK_CONTAINER(widget), compose->view);
gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 0);
compose->statusbar = gtk_statusbar_new();
compose->statusbar_id = 0;
gtk_box_pack_start(GTK_BOX(vbox), compose->statusbar, FALSE, TRUE, 0);
gtk_container_add(GTK_CONTAINER(compose->window), vbox);
compose->ab_window = NULL;
gtk_widget_show_all(vbox);
gtk_widget_hide(compose->tb_cc);
gtk_widget_hide(compose->tb_bcc);
gtk_widget_show(compose->window);
return compose;
}
static GtkWidget * _new_text_view(Mailer * mailer)
{
static const char signature[] = "/.signature";
static const char prefix[] = "\n-- \n";
GtkWidget * textview;
char const * font;
PangoFontDescription * desc;
char const * homedir;
char * filename;
gchar * buf;
size_t cnt;
GtkTextBuffer * buffer;
textview = gtk_text_view_new();
/* font */
if((font = mailer_get_config(mailer, "messages_font")) != NULL)
{
desc = pango_font_description_from_string(font);
gtk_widget_modify_font(textview, desc);
pango_font_description_free(desc);
}
/* signature */
if((homedir = getenv("HOME")) == NULL)
return textview;
if((filename = malloc(strlen(homedir) + sizeof(signature))) == NULL)
return textview;
sprintf(filename, "%s%s", homedir, signature);
if(g_file_get_contents(filename, &buf, &cnt, NULL) != TRUE)
{
free(filename);
return textview;
}
free(filename);
buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview));
gtk_text_buffer_set_text(buffer, prefix, sizeof(prefix) - 1);
gtk_text_buffer_insert_at_cursor(buffer, buf, cnt);
return textview;
}
/* compose_delete */
void compose_delete(Compose * compose)
{
gtk_widget_hide(compose->window);
free(compose);
}
/* accessors */
Mailer * compose_get_mailer(Compose * compose)
{
return compose->mailer;
}
/* useful */
/* compose_save */
int compose_save(Compose * compose)
{
/* FIXME implement */
return -1;
}
/* compose_send */
static char * _send_headers(Compose * compose);
static char * _send_body(GtkWidget * view);
static int _send_mail(Compose * compose, char * msg, size_t msg_len);
static int _mail_child(int fd[2]);
static gboolean _on_send_write(GIOChannel * source, GIOCondition condition,
gpointer data);
void compose_send(Compose * compose)
{
char * msg;
size_t msg_len;
char * body;
size_t body_len;
char * p;
if((msg = _send_headers(compose)) == NULL)
return;
if((body = _send_body(compose->view)) == NULL)
{
free(msg);
return;
}
msg_len = strlen(msg);
body_len = strlen(body);
if((p = realloc(msg, msg_len + body_len + 8)) == NULL)
mailer_error(compose->mailer, strerror(errno), 0);
else
{
msg = p;
snprintf(&msg[msg_len], body_len + 8, "\r\n%s\r\n.\r\n", body);
msg_len += body_len + 7;
_send_mail(compose, msg, msg_len);
}
g_free(body);
}
static int _send_mail(Compose * compose, char * msg, size_t msg_len)
{
int fd[2];
GtkWidget * hbox;
GtkWidget * widget;
if(pipe(fd) != 0 || (compose->pid = fork()) == -1)
return mailer_error(compose->mailer, strerror(errno), 1);
if(compose->pid == 0)
return _mail_child(fd);
if(close(fd[0]) != 0 || fcntl(fd[1], F_SETFL, O_NONBLOCK) == -1)
mailer_error(compose->mailer, strerror(errno), 0);
compose->snd_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(compose->snd_window),
"Sending mail...");
gtk_window_set_resizable(GTK_WINDOW(compose->snd_window), FALSE);
gtk_window_set_transient_for(GTK_WINDOW(compose->snd_window),
GTK_WINDOW(compose->window));
g_signal_connect_swapped(G_OBJECT(compose->snd_window), "delete-event",
G_CALLBACK(on_send_closex), compose);
hbox = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), gtk_label_new("Progression: "),
FALSE, FALSE, 0);
compose->snd_progress = gtk_progress_bar_new();
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(compose->snd_progress),
0.0);
gtk_box_pack_start(GTK_BOX(hbox), compose->snd_progress, TRUE, TRUE, 0);
widget = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
g_signal_connect_swapped(G_OBJECT(widget), "clicked", G_CALLBACK(
on_send_cancel), compose);
gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
gtk_container_set_border_width(GTK_CONTAINER(compose->snd_window), 4);
gtk_container_add(GTK_CONTAINER(compose->snd_window), hbox);
gtk_widget_show_all(compose->snd_window);
compose->fd = fd[1];
compose->buf = msg;
compose->buf_len = msg_len;
compose->buf_pos = 0;
compose->channel = g_io_channel_unix_new(fd[1]);
g_io_add_watch(compose->channel, G_IO_OUT, _on_send_write, compose);
return 0;
}
static int _mail_child(int fd[2])
{
if(close(fd[1]) != 0 || close(0) != 0 || dup2(fd[0], 0) == -1)
perror("mailer");
else
{
execl(SENDMAIL, "sendmail", "-bm", "-t", NULL);
perror(SENDMAIL);
}
exit(2);
return 0;
}
static char * _send_headers(Compose * compose)
{
struct {
char * hdr;
GtkWidget * wgt;
} widgets[] =
{
{ "To: ", NULL },
{ "Cc: ", NULL },
{ "Bcc: ", NULL },
{ "Subject: ", NULL },
{ NULL, NULL }
};
int i;
char * msg = NULL;
size_t msg_len = 0;
char const * p;
size_t len;
size_t hdr_len;
char * q;
widgets[0].wgt = compose->to;
widgets[1].wgt = compose->cc;
widgets[2].wgt = compose->bcc;
widgets[3].wgt = compose->subject;
q = gtk_combo_box_get_active_text(GTK_COMBO_BOX(compose->from));
if(*q != '\0')
{
msg_len = strlen(q) + 8;
if((msg = malloc(msg_len + 1)) == NULL)
return NULL;
snprintf(msg, msg_len + 1, "%s%s\r\n", "From: ", q);
}
g_free(q);
for(i = 0; widgets[i].hdr != NULL; i++)
{
p = gtk_entry_get_text(GTK_ENTRY(widgets[i].wgt));
if((len = strlen(p)) == 0)
continue;
hdr_len = strlen(widgets[i].hdr);
if((q = realloc(msg, msg_len + hdr_len + len + 3)) == NULL)
{
free(msg);
mailer_error(compose->mailer, strerror(errno), 0);
return NULL;
}
msg = q;
snprintf(&msg[msg_len], hdr_len + len + 3, "%s%s\r\n",
widgets[i].hdr, p);
msg_len += hdr_len + len + 2;
}
if(msg != NULL)
return msg;
if((msg = strdup("")) == NULL)
mailer_error(compose->mailer, strerror(errno), 0);
return msg;
}
static char * _send_body(GtkWidget * view)
{
GtkTextBuffer * tbuf;
GtkTextIter start;
GtkTextIter end;
tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));
/* FIXME allocating the complete message is not optimal */
gtk_text_buffer_get_start_iter(GTK_TEXT_BUFFER(tbuf), &start);
gtk_text_buffer_get_end_iter(GTK_TEXT_BUFFER(tbuf), &end);
return gtk_text_buffer_get_text(GTK_TEXT_BUFFER(tbuf), &start, &end,
FALSE);
}
static gboolean _on_send_write(GIOChannel * source, GIOCondition condition,
gpointer data)
{
Compose * c = data;
gsize i;
if(condition != G_IO_OUT)
return FALSE;
if((i = (c->buf_len - c->buf_pos) % 512) == 0)
i = 512;
if(g_io_channel_write_chars(source, &c->buf[c->buf_pos], i, &i, NULL)
!= G_IO_STATUS_NORMAL)
{
mailer_error(c->mailer, strerror(errno), FALSE);
on_send_cancel(c);
return FALSE;
}
c->buf_pos+=i;
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->snd_progress),
c->buf_pos / c->buf_len);
if(c->buf_pos >= c->buf_len)
{
on_send_cancel(c);
compose_delete(c);
return FALSE;
}
return TRUE;
}
/* compose_send_cancel */
void compose_send_cancel(Compose * compose)
{
/* FIXME verify that a send operation is in progress */
g_io_channel_shutdown(compose->channel, TRUE, NULL);
gtk_widget_destroy(compose->snd_window);
free(compose->buf);
}
/* compose_show_about */
void compose_show_about(Compose * compose, gboolean show)
{
if(compose->ab_window != NULL)
{
if(show)
gtk_widget_show(compose->ab_window);
else
gtk_widget_hide(compose->ab_window);
return;
}
/* FIXME implement */
}
/* compose_toggle_show_bcc */
void compose_toggle_show_bcc(Compose * compose)
{
/* FIXME implement correctly */
gtk_widget_show(compose->tb_bcc);
}
/* compose_toggle_show_cc */
void compose_toggle_show_cc(Compose * compose)
{
/* FIXME implement correctly */
gtk_widget_show(compose->tb_cc);
}