2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 /* babel.c: running external programs and redirecting to TRWLayers.
23 * GPSBabel may not be necessary for everything -- for instance,
24 * use a_babel_convert_from_shellcommand with input_file_type == NULL
25 * for an external program that outputs GPX.
36 #ifdef HAVE_SYS_WAIT_H
43 #include <glib/gstdio.h>
45 /* in the future we could have support for other shells (change command strings), or not use a shell at all */
46 #define BASH_LOCATION "/bin/bash"
48 gboolean a_babel_convert( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, gpointer user_data )
54 gchar *bargs = g_strconcat(babelargs, " -i gpx", NULL);
56 if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
57 f = fdopen(fd_src, "w");
58 a_gpx_write_file(vt, f);
61 ret = a_babel_convert_from ( vt, bargs, cb, name_src, user_data );
70 /* Runs args[0] with the arguments and uses the GPX module
71 * to import the GPX data into layer vt. Assumes that upon
72 * running the command, the data will appear in the (usually
73 * temporary) file name_dst.
75 * cb: callback that is run upon new data from STDOUT (?)
76 * (TODO: STDERR would be nice since we usually redirect STDOUT)
77 * user_data: passed along to cb
79 * returns TRUE on success
82 gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_dst, gpointer user_data )
90 PROCESS_INFORMATION pi;
93 ZeroMemory( &si, sizeof(si) );
94 ZeroMemory( &pi, sizeof(pi) );
96 si.dwFlags = STARTF_USESHOWWINDOW;
97 si.wShowWindow = SW_HIDE;
99 cmd = g_strjoinv( " ", args);
100 args2 = g_strsplit(cmd, "\\", 0);
102 cmd = g_strjoinv( "\\\\", args2);
104 args2 = g_strsplit(cmd, "/", 0);
106 cmd = g_strjoinv( "\\\\", args2);
109 NULL, // No module name (use command line).
110 (LPTSTR)cmd, // Command line.
111 NULL, // Process handle not inheritable.
112 NULL, // Thread handle not inheritable.
113 FALSE, // Set handle inheritance to FALSE.
114 0, // No creation flags.
115 NULL, // Use parent's environment block.
116 NULL, // Use parent's starting directory.
117 &si, // Pointer to STARTUPINFO structure.
118 &pi ) // Pointer to PROCESS_INFORMATION structure.
120 g_warning( "CreateProcess failed");
124 WaitForSingleObject(pi.hProcess, INFINITE);
125 WaitForSingleObject(pi.hThread, INFINITE);
127 CloseHandle(pi.hThread);
128 CloseHandle(pi.hProcess);
131 cb(BABEL_DONE, NULL, user_data);
133 f = g_fopen(name_dst, "r");
134 a_gpx_read_file( vt, f );
147 gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_dst, gpointer user_data )
149 gboolean ret = FALSE;
151 GError *error = NULL;
156 if (!g_spawn_async_with_pipes (NULL, args, NULL, 0, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) {
157 g_warning("Error : %s", error->message);
163 diag = fdopen(babel_stdout, "r");
164 setvbuf(diag, NULL, _IONBF, 0);
166 while (fgets(line, sizeof(line), diag)) {
168 cb(BABEL_DIAG_OUTPUT, line, user_data);
171 cb(BABEL_DONE, NULL, user_data);
174 waitpid(pid, NULL, 0);
175 g_spawn_close_pid(pid);
177 f = g_fopen(name_dst, "r");
179 a_gpx_read_file ( vt, f );
190 gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, const char *from, gpointer user_data )
195 gboolean ret = FALSE;
198 if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) {
202 gpsbabel_loc = g_find_program_in_path("gpsbabel");
205 gchar *unbuffer_loc = g_find_program_in_path("unbuffer");
206 gchar **sub_args = g_strsplit(babelargs, " ", 0);
210 args[i++] = unbuffer_loc;
211 args[i++] = gpsbabel_loc;
212 for (j = 0; sub_args[j]; j++) {
213 /* some version of gpsbabel can not take extra blank arg */
214 if (sub_args[j][0] != '\0')
215 args[i++] = sub_args[j];
222 args[i++] = name_dst;
225 ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data );
227 g_free ( unbuffer_loc );
228 g_strfreev(sub_args);
230 g_warning("gpsbabel not found in PATH");
231 g_free(gpsbabel_loc);
239 /* Runs the input command in a shell (bash) and optionally uses GPSBabel to convert from input_file_type.
240 * If input_file_type is NULL, doesn't use GPSBabel. Input must be GPX (or Geocaching *.loc)
242 * Uses babel_general_convert_from to actually run the command. This function
243 * prepares the command and temporary file, and sets up the arguments for bash.
245 gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_cmd, const char *input_file_type, BabelStatusFunc cb, gpointer user_data )
249 gboolean ret = FALSE;
252 if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) {
253 gchar *shell_command;
254 if ( input_file_type )
255 shell_command = g_strdup_printf("%s | gpsbabel -i %s -f - -o gpx -F %s", input_cmd, input_file_type, name_dst);
257 shell_command = g_strdup_printf("%s > %s", input_cmd, name_dst);
259 g_debug("%s: %s", __FUNCTION__, shell_command);
262 args = g_malloc(sizeof(gchar *)*4);
263 args[0] = BASH_LOCATION;
265 args[2] = shell_command;
268 ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data );
270 g_free ( shell_command );
278 gboolean a_babel_convert_from_url ( VikTrwLayer *vt, const char *url, const char *input_type, BabelStatusFunc cb, gpointer user_data )
280 static DownloadOptions options = {NULL, 0, a_check_kml_file};
283 gboolean ret = FALSE;
287 g_debug("%s: input_type=%s url=%s", __FUNCTION__, input_type, url);
289 if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
293 babelargs = g_strdup_printf(" -i %s", input_type);
295 fetch_ret = a_http_download_get_url(url, "", name_src, &options);
297 ret = a_babel_convert_from( vt, babelargs, NULL, name_src, NULL);
308 gboolean babel_general_convert_to( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data )
314 if (!a_file_export(vt, name_src, FILE_TYPE_GPX)) {
315 g_warning("%s(): error exporting to %s", __FUNCTION__, name_src);
320 PROCESS_INFORMATION pi;
322 ZeroMemory( &si, sizeof(si) );
323 ZeroMemory( &pi, sizeof(pi) );
325 si.dwFlags = STARTF_USESHOWWINDOW;
326 si.wShowWindow = SW_HIDE;
329 cmd = g_strjoinv( " ", args);
330 args2 = g_strsplit(cmd, "\\", 0);
331 cmd = g_strjoinv( "\\\\", args2);
333 args2 = g_strsplit(cmd, "/", 0);
335 cmd = g_strjoinv( "\\\\", args2);
338 NULL, // No module name (use command line).
339 (LPTSTR)cmd, // Command line.
340 NULL, // Process handle not inheritable.
341 NULL, // Thread handle not inheritable.
342 FALSE, // Set handle inheritance to FALSE.
343 0, // No creation flags.
344 NULL, // Use parent's environment block.
345 NULL, // Use parent's starting directory.
346 &si, // Pointer to STARTUPINFO structure.
347 &pi ) // Pointer to PROCESS_INFORMATION structure.
349 g_warning( "CreateProcess failed" );
354 WaitForSingleObject(pi.hProcess, INFINITE);
355 WaitForSingleObject(pi.hThread, INFINITE);
357 CloseHandle(pi.hThread);
358 CloseHandle(pi.hProcess);
361 cb(BABEL_DONE, NULL, user_data);
374 gboolean babel_general_convert_to( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data )
376 gboolean ret = FALSE;
378 GError *error = NULL;
381 if (!a_file_export(vt, name_src, FILE_TYPE_GPX)) {
382 g_warning("%s(): error exporting to %s", __FUNCTION__, name_src);
386 if (!g_spawn_async_with_pipes (NULL, args, NULL, 0, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) {
387 g_warning("Error : %s", error->message);
393 diag = fdopen(babel_stdout, "r");
394 setvbuf(diag, NULL, _IONBF, 0);
396 while (fgets(line, sizeof(line), diag)) {
398 cb(BABEL_DIAG_OUTPUT, line, user_data);
401 cb(BABEL_DONE, NULL, user_data);
404 waitpid(pid, NULL, 0);
405 g_spawn_close_pid(pid);
414 gboolean a_babel_convert_to( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, const char *to, gpointer user_data )
419 gboolean ret = FALSE;
422 if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
426 gpsbabel_loc = g_find_program_in_path("gpsbabel");
429 gchar *unbuffer_loc = g_find_program_in_path("unbuffer");
430 gchar **sub_args = g_strsplit(babelargs, " ", 0);
434 args[i++] = unbuffer_loc;
435 args[i++] = gpsbabel_loc;
438 for (j = 0; sub_args[j]; j++)
439 /* some version of gpsbabel can not take extra blank arg */
440 if (sub_args[j][0] != '\0')
441 args[i++] = sub_args[j];
443 args[i++] = name_src;
448 ret = babel_general_convert_to ( vt, cb, args, name_src, user_data );
450 g_free ( unbuffer_loc );
451 g_strfreev(sub_args);
453 g_warning("gpsbabel not found in PATH");
454 g_free(gpsbabel_loc);