forked from osmocom/wireshark
c3187174bf
to do this, I've added file_util.h to wiretap (would file_compat.h be a better name?), and provide compat_macros like eth_open() instead of open(). While at it, move other file related things there, like #include <io.h>, definition of O_BINARY and alike, so it's all in one place. deleted related things from config.h.win32 As of these massive changes, I'm almost certain that this will break the Unix build. I'll keep an eye on the buildbot so hopefully everything is working again soon. svn path=/trunk/; revision=16403
380 lines
12 KiB
C
380 lines
12 KiB
C
/* dnd.c
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* Drag and Drop
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_LIBPCAP
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#include <pcap.h>
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#endif
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#include <gtk/gtk.h>
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#include "globals.h"
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#include "gtkglobals.h"
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#include "util.h"
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#include "file_dlg.h"
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#include "../menu.h"
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#include "compat_macros.h"
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#include "file.h"
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#include "simple_dialog.h"
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#include "main.h"
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#ifdef HAVE_LIBPCAP
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#include "capture.h"
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#endif
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#include <epan/prefs.h>
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#include <string.h>
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#include <stdio.h>
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enum { DND_TARGET_STRING, DND_TARGET_ROOTWIN, DND_TARGET_URL };
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/* convert drag and drop URI to a local filename */
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static gchar *
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dnd_uri2filename(gchar *cf_name)
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{
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gchar *src, *dest;
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gint ret;
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guint i;
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gchar esc[3];
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/* Remove URI header.
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* we have to remove the prefix to get a valid filename. */
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#ifdef _WIN32
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/*
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* On win32 (at least WinXP), this prefix looks like (UNC):
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* file:////servername/sharename/dir1/dir2/capture-file.cap
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* or (local filename):
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* file:///d:/dir1/dir2/capture-file.cap
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*/
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if (strncmp("file:////", cf_name, 9) == 0) {
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/* win32 UNC: now becoming: //servername/sharename/dir1/dir2/capture-file.cap */
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cf_name += 7;
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} else if (strncmp("file:///", cf_name, 8) == 0) {
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/* win32 local: now becoming: d:/dir1/dir2/capture-file.cap */
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cf_name += 8;
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}
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#else
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/*
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* On UNIX (at least KDE 3.0 Konqueror), this prefix looks like:
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* file:/dir1/dir2/capture-file.cap
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*
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* On UNIX (at least GNOME Nautilus 2.8.2), this prefix looks like:
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* file:///dir1/dir2/capture-file.cap
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*/
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if (strncmp("file:", cf_name, 5) == 0) {
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/* now becoming: /dir1/dir2/capture-file.cap or ///dir1/dir2/capture-file.cap */
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cf_name += 5;
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/* shorten //////thing to /thing */
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for(; cf_name[1] == '/'; ++cf_name);
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}
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#endif
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/*
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* unescape the escaped URI characters (spaces, ...)
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*
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* we have to replace escaped chars to their equivalents,
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* e.g. %20 (always a two digit hexstring) -> ' '
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* the percent character '%' is escaped be a double one "%%"
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*
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* we do this conversation "in place" as the result is always
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* equal or smaller in size.
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*/
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src = cf_name;
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dest = cf_name;
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while (*src) {
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if (*src == '%') {
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src++;
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if (*src == '%') {
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/* this is an escaped '%' char (was: "%%") */
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*dest = *src;
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src++;
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dest++;
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} else {
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/* convert escaped hexnumber to unscaped character */
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esc[0] = src[0];
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esc[1] = src[1];
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esc[2] = '\0';
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ret = sscanf(esc, "%x", &i);
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if (ret == 1) {
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src+=2;
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*dest = (gchar) i;
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dest++;
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} else {
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/* somethings wrong, just jump over that char
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* this will result in a wrong string, but we might get
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* user feedback and can fix it later ;-) */
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src++;
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}
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}
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} else {
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*dest = *src;
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src++;
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dest++;
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}
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}
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*dest = '\0';
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return cf_name;
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}
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static void
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dnd_merge_files(int in_file_count, char **in_filenames)
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{
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char *tmpname;
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cf_status_t merge_status;
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int err;
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/* merge the files in chonological order */
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tmpname = NULL;
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merge_status = cf_merge_files(&tmpname, in_file_count, in_filenames,
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WTAP_FILE_PCAP, FALSE);
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if (merge_status != CF_OK) {
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/* merge failed */
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g_free(tmpname);
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return;
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}
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cf_close(&cfile);
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/* Try to open the merged capture file. */
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if (cf_open(&cfile, tmpname, TRUE /* temporary file */, &err) != CF_OK) {
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/* We couldn't open it; don't dismiss the open dialog box,
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just leave it around so that the user can, after they
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dismiss the alert box popped up for the open error,
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try again. */
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g_free(tmpname);
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return;
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}
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g_free(tmpname);
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switch (cf_read(&cfile)) {
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case CF_READ_OK:
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case CF_READ_ERROR:
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/* Just because we got an error, that doesn't mean we were unable
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to read any of the file; we handle what we could get from the
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file. */
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break;
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case CF_READ_ABORTED:
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/* The user bailed out of re-reading the capture file; the
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capture file has been closed - just free the capture file name
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string and return (without changing the last containing
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directory). */
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return;
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}
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gtk_widget_grab_focus(packet_list);
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}
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/* open/merge the dnd file */
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void
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dnd_open_file_cmd(gchar *cf_names_freeme)
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{
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int err;
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gchar *cf_name;
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int in_files;
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gpointer dialog;
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GString *dialog_text;
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int files_work;
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char **in_filenames;
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/* DND_TARGET_URL on Win32:
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* The cf_name_freeme is a single string, containing one or more URI's,
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* seperated by CR/NL chars. The length of the whole field can be found
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* in the selection_data->length field. If it contains one file, simply open it,
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* If it contains more than one file, ask to merge these files. */
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/* count the number of input files */
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cf_name = cf_names_freeme;
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for(in_files = 0; (cf_name = strstr(cf_name, "\r\n")) != NULL; ) {
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cf_name += 2;
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in_files++;
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}
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in_filenames = g_malloc(sizeof(char*) * in_files);
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/* store the starts of the file entries in a gchar array */
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cf_name = cf_names_freeme;
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in_filenames[0] = cf_name;
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for(files_work = 1; (cf_name = strstr(cf_name, "\r\n")) != NULL && files_work < in_files; ) {
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cf_name += 2;
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in_filenames[files_work] = cf_name;
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files_work++;
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}
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/* replace trailing CR NL simply with zeroes (in place), so we get valid terminated strings */
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cf_name = cf_names_freeme;
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g_strdelimit(cf_name, "\r\n", '\0');
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/* convert all filenames from URI to local filename (in place) */
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for(files_work = 0; files_work < in_files; files_work++) {
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in_filenames[files_work] = dnd_uri2filename(in_filenames[files_work]);
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}
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switch(in_files) {
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case(0):
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/* shouldn't happen */
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break;
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case(1):
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/* open and read the capture file (this will close an existing file) */
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if (cf_open(&cfile, in_filenames[0], FALSE, &err) == CF_OK) {
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/* XXX - add this to the menu if the read fails? */
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cf_read(&cfile);
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add_menu_recent_capture_file(in_filenames[0]);
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} else {
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/* the capture file couldn't be read (doesn't exist, file format unknown, ...) */
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}
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break;
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default:
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/* build and show the info dialog */
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dialog_text = g_string_sized_new(200);
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g_string_append(dialog_text, PRIMARY_TEXT_START
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"Merging the following files:" PRIMARY_TEXT_END "\n\n");
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for(files_work = 0; files_work < in_files; files_work++) {
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g_string_append(dialog_text, in_filenames[files_work]);
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g_string_append(dialog_text, "\n");
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}
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g_string_append(dialog_text, "\nThe packets in these files will be merged chronologically into a new temporary file.");
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dialog = simple_dialog(ESD_TYPE_CONFIRMATION,
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ESD_BTN_OK,
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dialog_text->str);
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g_string_free(dialog_text, TRUE);
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/* actually merge the files now */
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dnd_merge_files(in_files, in_filenames);
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}
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g_free(in_filenames);
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g_free(cf_names_freeme);
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}
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/* ask the user to save current unsaved file, before opening the dnd file */
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static void
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dnd_save_file_answered_cb(gpointer dialog _U_, gint btn, gpointer data)
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{
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switch(btn) {
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case(ESD_BTN_SAVE):
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/* save file first */
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file_save_as_cmd(after_save_open_dnd_file, data);
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break;
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case(ESD_BTN_DONT_SAVE):
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cf_close(&cfile);
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dnd_open_file_cmd(data);
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break;
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case(ESD_BTN_CANCEL):
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break;
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default:
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g_assert_not_reached();
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}
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}
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/* we have received some drag and drop data */
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/* (as we only registered to "text/uri-list", we will only get a file list here) */
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static void
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dnd_data_received(GtkWidget *widget _U_, GdkDragContext *dc _U_, gint x _U_, gint y _U_,
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GtkSelectionData *selection_data, guint info, guint t _U_, gpointer data _U_)
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{
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gpointer dialog;
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gchar *cf_names_freeme;
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if (info == DND_TARGET_URL) {
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/* Usually we block incoming events by disabling the corresponding menu/toolbar items.
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* This is the only place where an incoming event won't be blocked in such a way,
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* so we have to take care of NOT loading a new file while a different process
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* (e.g. capture/load/...) is still in progress. */
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#ifdef HAVE_LIBPCAP
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/* if a capture is running, do nothing but warn the user */
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if((capture_opts->state != CAPTURE_STOPPED)) {
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dialog = simple_dialog(ESD_TYPE_CONFIRMATION,
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ESD_BTN_OK,
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PRIMARY_TEXT_START "Drag and Drop currently not possible!" PRIMARY_TEXT_END "\n\n"
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"Dropping a file isn't possible while a capture is in progress.");
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return;
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}
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#endif
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/* if another file read is still in progress, do nothing but warn the user */
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if((cfile.state == FILE_READ_IN_PROGRESS)) {
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dialog = simple_dialog(ESD_TYPE_CONFIRMATION,
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ESD_BTN_OK,
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PRIMARY_TEXT_START "Drag and Drop currently not possible!" PRIMARY_TEXT_END "\n\n"
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"Dropping a file isn't possible while loading another capture file.");
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return;
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}
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/* the selection_data will soon be gone, make a copy first */
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/* the data string is not zero terminated -> make a zero terminated "copy" of it */
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cf_names_freeme = g_malloc(selection_data->length + 1);
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memcpy(cf_names_freeme, selection_data->data, selection_data->length);
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cf_names_freeme[selection_data->length] = '\0';
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/* ask the user to save it's current capture file first */
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if((cfile.state != FILE_CLOSED) && !cfile.user_saved && prefs.gui_ask_unsaved) {
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/* user didn't saved his current file, ask him */
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dialog = simple_dialog(ESD_TYPE_CONFIRMATION,
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ESD_BTNS_SAVE_DONTSAVE_CANCEL,
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PRIMARY_TEXT_START "Save capture file before opening a new one?" PRIMARY_TEXT_END "\n\n"
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"If you open a new capture file without saving, your current capture data will be discarded.");
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simple_dialog_set_cb(dialog, dnd_save_file_answered_cb, cf_names_freeme );
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} else {
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/* unchanged file */
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dnd_open_file_cmd( cf_names_freeme );
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}
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}
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}
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/* init the drag and drop functionality */
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void
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dnd_init(GtkWidget *w)
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{
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/* we are only interested in the URI list containing filenames */
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static GtkTargetEntry target_entry[] = {
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/*{"STRING", 0, DND_TARGET_STRING},*/
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/*{"text/plain", 0, DND_TARGET_STRING},*/
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{"text/uri-list", 0, DND_TARGET_URL}
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};
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/* set this window as a dnd destination */
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gtk_drag_dest_set(
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w, GTK_DEST_DEFAULT_ALL, target_entry,
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sizeof(target_entry) / sizeof(GtkTargetEntry),
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(GdkDragAction)(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
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/* get notified, if some dnd coming in */
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gtk_signal_connect(GTK_OBJECT(w), "drag_data_received",
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GTK_SIGNAL_FUNC(dnd_data_received), NULL);
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}
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