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3292ba8b GB |
1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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 | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifdef HAVE_CONFIG_H | |
23 | #include "config.h" | |
24 | #endif | |
25 | ||
8c060406 MA |
26 | #include <stdio.h> |
27 | ||
45acf79e MA |
28 | #include <glib.h> |
29 | #include <glib/gstdio.h> | |
4c77d5e0 | 30 | #include <glib/gi18n.h> |
6a2692be | 31 | #include <glib/gprintf.h> |
3292ba8b GB |
32 | #include <gtk/gtk.h> |
33 | ||
3292ba8b | 34 | #include <curl/curl.h> |
3292ba8b | 35 | |
7711383f | 36 | #include "background.h" |
80d0ff2b | 37 | #include "file.h" |
2936913d | 38 | #include "globals.h" |
3292ba8b GB |
39 | #include "curl_download.h" |
40 | ||
6a2692be JJ |
41 | gchar *curl_download_user_agent; |
42 | ||
3a0c074a MA |
43 | /* |
44 | * Even if writing to FILE* is supported by libcurl by default, | |
45 | * it seems that it is non-portable (win32 DLL specific). | |
46 | * | |
47 | * So, we provide our own trivial CURLOPT_WRITEFUNCTION. | |
48 | */ | |
49 | static size_t curl_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
50 | { | |
51 | return fwrite(ptr, size, nmemb, stream); | |
52 | } | |
53 | ||
7711383f JJ |
54 | static int curl_progress_func(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow) |
55 | { | |
56 | return a_background_testcancel(NULL); | |
57 | } | |
58 | ||
80d0ff2b QT |
59 | static gchar *get_cookie_file(gboolean init) |
60 | { | |
61 | static gchar *cookie_file = NULL; | |
62 | static GMutex *mutex = NULL; | |
63 | ||
64 | if (init) { /* to make sure it's thread safe */ | |
65 | mutex = g_mutex_new(); | |
66 | static gchar *cookie_fn = "cookies.txt"; | |
67 | const gchar *viking_dir = a_get_viking_dir(); | |
6f2b61bb | 68 | cookie_file = g_build_filename(viking_dir, cookie_fn, NULL); |
45acf79e | 69 | g_unlink(cookie_file); |
80d0ff2b QT |
70 | return NULL; |
71 | } | |
72 | ||
73 | g_assert(cookie_file != NULL); | |
74 | ||
75 | g_mutex_lock(mutex); | |
45acf79e | 76 | if (g_file_test(cookie_file, G_FILE_TEST_EXISTS) == FALSE) { /* file not there */ |
109c6557 | 77 | gchar * name_tmp = NULL; |
c7f6cb25 | 78 | FILE * out_file = tmpfile(); |
109c6557 MA |
79 | if (out_file == NULL) { |
80 | // Something wrong with previous call (unsuported?) | |
81 | name_tmp = g_strdup_printf("%s.tmp", cookie_file); | |
82 | out_file = g_fopen(name_tmp, "w+b"); | |
83 | } | |
80d0ff2b QT |
84 | CURLcode res; |
85 | CURL *curl = curl_easy_init(); | |
2936913d GB |
86 | if (vik_verbose) |
87 | curl_easy_setopt ( curl, CURLOPT_VERBOSE, 1 ); | |
80d0ff2b | 88 | curl_easy_setopt(curl, CURLOPT_URL, "http://maps.google.com/"); /* google.com sets "PREF" cookie */ |
da309dc2 | 89 | curl_easy_setopt ( curl, CURLOPT_WRITEDATA, out_file ); |
3a0c074a | 90 | curl_easy_setopt ( curl, CURLOPT_WRITEFUNCTION, curl_write_func); |
80d0ff2b QT |
91 | curl_easy_setopt(curl, CURLOPT_COOKIEJAR, cookie_file); |
92 | res = curl_easy_perform(curl); | |
93 | if (res != CURLE_OK) { | |
4c77d5e0 | 94 | g_warning(_("%s() Curl perform failed: %s"), __PRETTY_FUNCTION__, |
80d0ff2b | 95 | curl_easy_strerror(res)); |
45acf79e | 96 | g_unlink(cookie_file); |
80d0ff2b QT |
97 | } |
98 | curl_easy_cleanup(curl); | |
8c060406 MA |
99 | fclose(out_file); |
100 | out_file = NULL; | |
109c6557 MA |
101 | if (name_tmp != NULL) { |
102 | g_remove(name_tmp); | |
103 | g_free(name_tmp); | |
104 | name_tmp = NULL; | |
105 | } | |
80d0ff2b QT |
106 | } |
107 | g_mutex_unlock(mutex); | |
108 | ||
109 | return(cookie_file); | |
110 | } | |
111 | ||
112 | /* This should to be called from main() to make sure thread safe */ | |
113 | void curl_download_init() | |
114 | { | |
115 | curl_global_init(CURL_GLOBAL_ALL); | |
116 | get_cookie_file(TRUE); | |
6a2692be | 117 | curl_download_user_agent = g_strdup_printf ("%s/%s %s", PACKAGE, VERSION, curl_version()); |
80d0ff2b QT |
118 | } |
119 | ||
a3188993 | 120 | int curl_download_uri ( const char *uri, FILE *f, DownloadOptions *options ) |
3292ba8b | 121 | { |
3292ba8b | 122 | CURL *curl; |
11f88b69 | 123 | CURLcode res = CURLE_FAILED_INIT; |
80d0ff2b | 124 | const gchar *cookie_file; |
3292ba8b | 125 | |
2936913d GB |
126 | g_debug("%s: uri=%s", __PRETTY_FUNCTION__, uri); |
127 | ||
3292ba8b GB |
128 | curl = curl_easy_init (); |
129 | if ( curl ) | |
130 | { | |
2936913d GB |
131 | if (vik_verbose) |
132 | curl_easy_setopt ( curl, CURLOPT_VERBOSE, 1 ); | |
3292ba8b | 133 | curl_easy_setopt ( curl, CURLOPT_URL, uri ); |
da309dc2 | 134 | curl_easy_setopt ( curl, CURLOPT_WRITEDATA, f ); |
3a0c074a | 135 | curl_easy_setopt ( curl, CURLOPT_WRITEFUNCTION, curl_write_func); |
7711383f JJ |
136 | curl_easy_setopt ( curl, CURLOPT_NOPROGRESS, 0 ); |
137 | curl_easy_setopt ( curl, CURLOPT_PROGRESSDATA, NULL ); | |
138 | curl_easy_setopt ( curl, CURLOPT_PROGRESSFUNCTION, curl_progress_func); | |
1a8143e6 BZ |
139 | if (options != NULL) { |
140 | if(options->referer != NULL) | |
141 | curl_easy_setopt ( curl, CURLOPT_REFERER, options->referer); | |
142 | if(options->follow_location != 0) { | |
143 | curl_easy_setopt ( curl, CURLOPT_FOLLOWLOCATION, 1); | |
144 | curl_easy_setopt ( curl, CURLOPT_MAXREDIRS, options->follow_location); | |
145 | } | |
146 | } | |
6a2692be | 147 | curl_easy_setopt ( curl, CURLOPT_USERAGENT, curl_download_user_agent ); |
494eb388 | 148 | if ((cookie_file = get_cookie_file(FALSE)) != NULL) |
80d0ff2b | 149 | curl_easy_setopt(curl, CURLOPT_COOKIEFILE, cookie_file); |
3292ba8b GB |
150 | res = curl_easy_perform ( curl ); |
151 | curl_easy_cleanup ( curl ); | |
152 | } | |
11f88b69 | 153 | return(res); |
3292ba8b GB |
154 | } |
155 | ||
0c1044e9 | 156 | int curl_download_get_url ( const char *hostname, const char *uri, FILE *f, DownloadOptions *options, gboolean ftp ) |
3292ba8b GB |
157 | { |
158 | int ret; | |
159 | gchar *full = NULL; | |
160 | ||
161 | /* Compose the full url */ | |
0c1044e9 | 162 | full = g_strdup_printf ( "%s://%s%s", (ftp?"ftp":"http"), hostname, uri ); |
a3188993 | 163 | ret = curl_download_uri ( full, f, options ); |
3292ba8b GB |
164 | g_free ( full ); |
165 | full = NULL; | |
166 | ||
11f88b69 | 167 | return (ret ? -2 : 0); /* -2 HTTP error */ |
3292ba8b | 168 | } |