* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <math.h>
#include <string.h>
#include "vikcoord.h"
#include "mapcoord.h"
#include "download.h"
+#include "curl_download.h"
#include "globals.h"
#include "google.h"
#include "vikmapslayer.h"
-#define GOOGLE_VERSION "w2.60"
-#define GOOGLE_TRANS_VERSION "w2t.60"
-#define GOOGLE_KH_VERSION "20"
static int google_download ( MapCoord *src, const gchar *dest_fn );
static int google_trans_download ( MapCoord *src, const gchar *dest_fn );
+static int google_terrain_download ( MapCoord *src, const gchar *dest_fn );
static int google_kh_download ( MapCoord *src, const gchar *dest_fn );
static void google_mapcoord_to_center_coord ( MapCoord *src, VikCoord *dest );
static gboolean google_coord_to_mapcoord ( const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
-static DownloadOptions google_options = { "http://maps.google.com/" };
+static DownloadOptions google_options = { "http://maps.google.com/", 0 };
void google_init () {
VikMapsLayer_MapType google_1 = { 7, 256, 256, VIK_VIEWPORT_DRAWMODE_MERCATOR, google_coord_to_mapcoord, google_mapcoord_to_center_coord, google_download };
VikMapsLayer_MapType google_2 = { 10, 256, 256, VIK_VIEWPORT_DRAWMODE_MERCATOR, google_coord_to_mapcoord, google_mapcoord_to_center_coord, google_trans_download };
VikMapsLayer_MapType google_3 = { 11, 256, 256, VIK_VIEWPORT_DRAWMODE_MERCATOR, google_coord_to_mapcoord, google_mapcoord_to_center_coord, google_kh_download };
+ VikMapsLayer_MapType google_4 = { 16, 256, 256, VIK_VIEWPORT_DRAWMODE_MERCATOR, google_coord_to_mapcoord, google_mapcoord_to_center_coord, google_terrain_download };
- maps_layer_register_type("Google Maps", 7, &google_1);
- maps_layer_register_type("Transparent Google Maps", 10, &google_2);
- maps_layer_register_type("Google Satellite Images", 11, &google_3);
+ maps_layer_register_type(_("Google Maps"), 7, &google_1);
+ maps_layer_register_type(_("Transparent Google Maps"), 10, &google_2);
+ maps_layer_register_type(_("Google Satellite Images"), 11, &google_3);
+ maps_layer_register_type(_("Google Terrain Maps"), 16, &google_4);
}
/* 1 << (x) is like a 2**(x) */
return 255;
}
+typedef enum {
+ TYPE_GOOGLE_MAPS = 0,
+ TYPE_GOOGLE_TRANS,
+ TYPE_GOOGLE_SAT,
+ TYPE_GOOGLE_TERRAIN,
+
+ TYPE_GOOGLE_NUM
+} GoogleType;
+
+static gchar *parse_version_number(gchar *text)
+{
+ int i;
+ gchar *vers;
+ gchar *s = text;
+
+ for (i = 0; (s[i] != '\\') && (i < 8); i++)
+ ;
+ if (s[i] != '\\') {
+ return NULL;
+ }
+
+ return vers = g_strndup(s, i);
+}
+
+static const gchar *google_version_number(MapCoord *mapcoord, GoogleType google_type)
+{
+ static gboolean first = TRUE;
+ static char *vers[] = { "w2.60", "w2t.60", "20", "w2p.60" };
+ FILE *tmp_file;
+ int tmp_fd;
+ gchar *tmpname;
+ gchar *uri;
+ VikCoord coord;
+ gchar *text, *pat, *beg;
+ GMappedFile *mf;
+ gsize len;
+ gchar *gvers, *tvers, *kvers, *terrvers, *tmpvers;
+ static DownloadOptions dl_options = { "http://maps.google.com/", 0 };
+ static const char *gvers_pat = "http://mt0.google.com/mt?n\\x3d404\\x26v\\x3d";
+ static const char *kvers_pat = "http://kh0.google.com/kh?n\\x3d404\\x26v\\x3d";
+
+ g_assert(google_type < TYPE_GOOGLE_NUM);
+
+ if (!first)
+ return (vers[google_type]);
+
+
+ first = FALSE;
+ gvers = tvers = kvers = terrvers = NULL;
+ if ((tmp_fd = g_file_open_tmp ("vikgvers.XXXXXX", &tmpname, NULL)) == -1) {
+ g_critical(_("couldn't open temp file %s"), tmpname);
+ exit(1);
+ }
+
+ google_mapcoord_to_center_coord(mapcoord, &coord);
+ uri = g_strdup_printf("http://maps.google.com/maps?f=q&hl=en&q=%f,%f", coord.north_south, coord.east_west);
+ tmp_file = fdopen(tmp_fd, "r+");
+
+ if (curl_download_uri(uri, tmp_file, &dl_options)) { /* error */
+ g_warning(_("Failed downloading %s"), tmpname);
+ } else {
+ if ((mf = g_mapped_file_new(tmpname, FALSE, NULL)) == NULL) {
+ g_critical(_("couldn't map temp file"));
+ exit(1);
+ }
+ len = g_mapped_file_get_length(mf);
+ text = g_mapped_file_get_contents(mf);
+
+ if ((beg = g_strstr_len(text, len, "GLoadApi")) == NULL) {
+ g_warning(_("Failed fetching Google numbers (\"GLoadApi\" not found)"));
+ goto failed;
+ }
+
+ pat = beg;
+ while (!gvers || !tvers ||!terrvers) {
+ if ((pat = g_strstr_len(pat, &text[len] - pat, gvers_pat)) != NULL) {
+ pat += strlen(gvers_pat);
+ if ((tmpvers = parse_version_number(pat)) != NULL) {
+ if (strstr(tmpvers, "t."))
+ tvers = tmpvers;
+ else if (strstr(tmpvers, "p."))
+ terrvers = tmpvers;
+ else
+ gvers = tmpvers;
+ }
+ }
+ else
+ break;
+ }
+
+ if ((pat = g_strstr_len(beg, &text[len] - beg, kvers_pat)) != NULL)
+ kvers = parse_version_number(pat + strlen(kvers_pat));
+
+ if (gvers && tvers && kvers) {
+ vers[TYPE_GOOGLE_MAPS] = gvers;
+ vers[TYPE_GOOGLE_TRANS] = tvers;
+ vers[TYPE_GOOGLE_SAT] = kvers;
+ vers[TYPE_GOOGLE_TERRAIN] = terrvers;
+ }
+ else
+ g_warning(_("Failed getting google version numbers"));
+
+ if (gvers)
+ fprintf(stderr, "DEBUG gvers=%s\n", gvers);
+ if (tvers)
+ fprintf(stderr, "DEBUG tvers=%s\n", tvers);
+ if (terrvers)
+ fprintf(stderr, "DEBUG terrvers=%s\n", terrvers);
+ if (kvers)
+ fprintf(stderr, "DEBUG kvers=%s\n", kvers);
+
+failed:
+ g_mapped_file_free(mf);
+ }
+
+ fclose(tmp_file);
+ tmp_file = NULL;
+ g_free(tmpname);
+ g_free (uri);
+ return (vers[google_type]);
+}
+
gboolean google_coord_to_mapcoord ( const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest )
{
g_assert ( src->mode == VIK_COORD_LATLON );
static int real_google_download ( MapCoord *src, const gchar *dest_fn, const char *verstr )
{
int res;
- gchar *uri = g_strdup_printf ( "/mt?v=%s&x=%d&y=%d&zoom=%d", verstr, src->x, src->y, src->scale );
+ gchar *uri = g_strdup_printf ( "/mt?n=404&v=%s&x=%d&y=%d&zoom=%d", verstr, src->x, src->y, src->scale );
res = a_http_download_get_url ( "mt.google.com", uri, dest_fn, &google_options );
g_free ( uri );
return res;
static int google_download ( MapCoord *src, const gchar *dest_fn )
{
- return(real_google_download ( src, dest_fn, GOOGLE_VERSION ));
+ const gchar *vers_str = google_version_number(src, TYPE_GOOGLE_MAPS);
+ return(real_google_download ( src, dest_fn, vers_str ));
}
static int google_trans_download ( MapCoord *src, const gchar *dest_fn )
{
- return(real_google_download ( src, dest_fn, GOOGLE_TRANS_VERSION ));
+ const gchar *vers_str = google_version_number(src, TYPE_GOOGLE_TRANS);
+ return(real_google_download ( src, dest_fn, vers_str ));
+}
+
+static int google_terrain_download ( MapCoord *src, const gchar *dest_fn )
+{
+ const gchar *vers_str = google_version_number(src, TYPE_GOOGLE_TERRAIN);
+ return(real_google_download ( src, dest_fn, vers_str ));
}
static char *kh_encode(guint32 x, guint32 y, guint8 scale)
{
int res;
gchar *khenc = kh_encode( src->x, src->y, src->scale );
- gchar *uri = g_strdup_printf ( "/kh?v=%s&t=%s", GOOGLE_KH_VERSION, khenc );
+ const gchar *vers_str = google_version_number(src, TYPE_GOOGLE_SAT);
+ gchar *uri = g_strdup_printf ( "/kh?n=404&v=%s&t=%s", vers_str, khenc );
g_free ( khenc );
res = a_http_download_get_url ( "kh.google.com", uri, dest_fn, &google_options );
g_free ( uri );
projects / andy / viking.git / blobdiff