15 |
* along with GPXView. If not, see <http://www.gnu.org/licenses/>. |
* along with GPXView. If not, see <http://www.gnu.org/licenses/>. |
16 |
*/ |
*/ |
17 |
|
|
|
|
|
|
/* curl command line example: |
|
|
curl -d version=2.0b -duserName=uglyDUMMYusernamesolution -d cacheIds=4e68a04e-161c-4351-9813-bec6f6a4ca8a -d password= http://dosensuche.de/GCVote/getVotes.php |
|
|
*/ |
|
|
|
|
18 |
#include <curl/curl.h> |
#include <curl/curl.h> |
19 |
#include <curl/types.h> |
#include <curl/types.h> |
20 |
#include <curl/easy.h> |
#include <curl/easy.h> |
22 |
#include <libxml/parser.h> |
#include <libxml/parser.h> |
23 |
#include <libxml/tree.h> |
#include <libxml/tree.h> |
24 |
|
|
25 |
|
#include <glib/gstdio.h> |
26 |
|
|
27 |
|
#include <fcntl.h> |
28 |
|
|
29 |
#ifndef LIBXML_TREE_ENABLED |
#ifndef LIBXML_TREE_ENABLED |
30 |
#error "Tree not enabled in libxml" |
#error "Tree not enabled in libxml" |
31 |
#endif |
#endif |
34 |
|
|
35 |
#define ID_PATTERN "guid=" |
#define ID_PATTERN "guid=" |
36 |
|
|
|
typedef struct { |
|
|
char *ptr; |
|
|
int len; |
|
|
} curl_mem_t; |
|
|
|
|
37 |
static size_t mem_write(void *ptr, size_t size, size_t nmemb, |
static size_t mem_write(void *ptr, size_t size, size_t nmemb, |
38 |
void *stream) { |
void *stream) { |
39 |
curl_mem_t *p = (curl_mem_t*)stream; |
curl_mem_t *p = (curl_mem_t*)stream; |
47 |
return nmemb; |
return nmemb; |
48 |
} |
} |
49 |
|
|
50 |
#if 0 |
/* return list of all votes in this file */ |
51 |
#define PROXY_KEY "/system/http_proxy/" |
static gcvote_t *votes_parse(xmlDocPtr doc, xmlNode *a_node) { |
52 |
|
xmlNode *cur_node = NULL; |
53 |
|
|
54 |
typedef struct { |
gcvote_t *votes = NULL, **cur = &votes; |
55 |
char *authentication_password, *authentication_user; |
|
56 |
char *host; |
for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) { |
57 |
char *ignore_hosts; |
if (cur_node->type == XML_ELEMENT_NODE) { |
58 |
gint port; |
|
59 |
gboolean use_authentication; |
if(strcasecmp((char*)cur_node->name, "vote") == 0) { |
60 |
} proxy_t; |
*cur = g_new0(gcvote_t, 1); |
61 |
|
(*cur)->quality = GCVOTE_NONE; |
62 |
void net_io_set_proxy(CURL *curl, proxy_t *proxy) { |
|
63 |
/* ------ overwrite with settings from gconf if present ------- */ |
/* unhandled attributes: */ |
64 |
GConfClient *client = gconf_client_get_default(); |
/* userName, voteAvg, voteUser, waypoint, vote1-5 */ |
65 |
|
|
66 |
/* ------------- get proxy settings -------------------- */ |
/* parse votes attributes */ |
67 |
if(gconf_client_get_bool(client, PROXY_KEY "use_http_proxy", NULL)) { |
char *prop_str = (char*)xmlGetProp(cur_node, BAD_CAST "voteMedian"); |
68 |
proxy_t *proxy = settings->proxy = g_new0(proxy_t, 1); |
if(prop_str) { |
69 |
|
(*cur)->quality = atoi(prop_str); |
70 |
/* get basic settings */ |
xmlFree(prop_str); |
71 |
proxy->host = gconf_client_get_string(client, PROXY_KEY "host", NULL); |
} |
72 |
proxy->port = gconf_client_get_int(client, PROXY_KEY "port", NULL); |
|
73 |
proxy->ignore_hosts = |
prop_str = (char*)xmlGetProp(cur_node, BAD_CAST "voteCnt"); |
74 |
gconf_client_get_string(client, PROXY_KEY "ignore_hosts", NULL); |
if(prop_str) { |
75 |
|
(*cur)->votes = atoi(prop_str); |
76 |
/* check for authentication */ |
xmlFree(prop_str); |
77 |
proxy->use_authentication = |
} |
78 |
gconf_client_get_bool(client, PROXY_KEY "use_authentication", NULL); |
|
79 |
|
prop_str = (char*)xmlGetProp(cur_node, BAD_CAST "cacheId"); |
80 |
if(proxy->use_authentication) { |
if(prop_str) { |
81 |
proxy->authentication_user = |
(*cur)->id = g_strdup(prop_str); |
82 |
gconf_client_get_string(client, PROXY_KEY "authentication_user", NULL); |
xmlFree(prop_str); |
83 |
proxy->authentication_password = |
} |
84 |
gconf_client_get_string(client, PROXY_KEY "authentication_password", |
|
85 |
NULL); |
cur = &(*cur)->next; |
86 |
|
} else if(strcasecmp((char*)cur_node->name, "errorstring") == 0) { |
87 |
|
/* ignore for now ... */ |
88 |
|
} else |
89 |
|
printf("found unhandled votes/%s\n", cur_node->name); |
90 |
|
} |
91 |
|
} |
92 |
|
return votes; |
93 |
|
} |
94 |
|
|
95 |
|
/* parse root element */ |
96 |
|
static gcvote_t *parse_root(xmlDocPtr doc, xmlNode *a_node) { |
97 |
|
xmlNode *cur_node = NULL; |
98 |
|
gcvote_t *votes = NULL; |
99 |
|
|
100 |
|
for (cur_node = a_node; cur_node; cur_node = cur_node->next) { |
101 |
|
if (cur_node->type == XML_ELEMENT_NODE) { |
102 |
|
|
103 |
|
if(strcasecmp((char*)cur_node->name, "votes") == 0) { |
104 |
|
if(!votes) |
105 |
|
votes = votes_parse(doc, cur_node); |
106 |
|
else |
107 |
|
printf("gcvote: ignoring multiple votes lists\n"); |
108 |
|
} else |
109 |
|
printf("found unhandled %s\n", cur_node->name); |
110 |
} |
} |
111 |
} |
} |
112 |
|
return votes; |
113 |
|
} |
114 |
|
|
115 |
|
static gcvote_t *parse_doc(xmlDocPtr doc) { |
116 |
|
/* Get the root element node */ |
117 |
|
xmlNode *root_element = xmlDocGetRootElement(doc); |
118 |
|
gcvote_t *votes = parse_root(doc, root_element); |
119 |
|
|
120 |
|
/*free the document */ |
121 |
|
xmlFreeDoc(doc); |
122 |
|
|
123 |
|
/* |
124 |
|
* Free the global variables that may |
125 |
|
* have been allocated by the parser. |
126 |
|
*/ |
127 |
|
xmlCleanupParser(); |
128 |
|
|
129 |
|
return votes; |
130 |
|
} |
131 |
|
|
132 |
|
static void curl_set_proxy(CURL *curl, proxy_t *proxy) { |
133 |
if(proxy) { |
if(proxy) { |
134 |
if(proxy->ignore_hosts) |
if(proxy->ignore_hosts) |
135 |
printf("WARNING: Pproxy \"ignore_hosts\" unsupported!\n"); |
printf("WARNING: Proxy \"ignore_hosts\" unsupported!\n"); |
136 |
|
|
137 |
printf("net_io: using proxy %s:%d\n", proxy->host, proxy->port); |
printf("gcvote: using proxy %s:%d\n", proxy->host, proxy->port); |
138 |
|
|
139 |
curl_easy_setopt(curl, CURLOPT_PROXY, proxy->host); |
curl_easy_setopt(curl, CURLOPT_PROXY, proxy->host); |
140 |
curl_easy_setopt(curl, CURLOPT_PROXYPORT, proxy->port); |
curl_easy_setopt(curl, CURLOPT_PROXYPORT, proxy->port); |
141 |
|
|
142 |
if(proxy->use_authentication) { |
if(proxy->use_authentication) { |
143 |
printf("net_io: use auth for user %s\n", proxy->authentication_user); |
printf("gcvote: use auth for user %s\n", proxy->authentication_user); |
144 |
|
|
145 |
char *cred = g_strdup_printf("%s:%s", |
char *cred = g_strdup_printf("%s:%s", |
146 |
proxy->authentication_user, |
proxy->authentication_user, |
151 |
} |
} |
152 |
} |
} |
153 |
} |
} |
|
#endif |
|
154 |
|
|
155 |
/* parse root element */ |
void gcvote_request_free(gcvote_request_t *request) { |
156 |
static void parse_root(xmlDocPtr doc, xmlNode *a_node) { |
/* decrease refcount and only free structure if no references are left */ |
157 |
xmlNode *cur_node = NULL; |
request->refcount--; |
158 |
|
if(request->refcount) { |
159 |
|
printf("gcvote: still %d references, keeping request\n", |
160 |
|
request->refcount); |
161 |
|
return; |
162 |
|
} |
163 |
|
|
164 |
for (cur_node = a_node; cur_node; cur_node = cur_node->next) { |
printf("gcvote: no references left, freeing request\n"); |
165 |
if (cur_node->type == XML_ELEMENT_NODE) { |
if(request->url) g_free(request->url); |
166 |
|
|
167 |
if(strcasecmp((char*)cur_node->name, "WMT_MS_Capabilities") == 0) { |
if(request->mem.ptr) |
168 |
printf("xyz\n"); |
g_free(request->mem.ptr); |
169 |
|
|
170 |
// wms_cap_parse(wms, doc, cur_node); |
g_free(request); |
|
} else |
|
|
printf("found unhandled %s\n", cur_node->name); |
|
|
} |
|
|
} |
|
171 |
} |
} |
172 |
|
|
173 |
static void parse_doc(xmlDocPtr doc) { |
/* gcvote net result handler */ |
174 |
/* Get the root element node */ |
static gboolean gcvote_result_handler(gpointer data) { |
175 |
xmlNode *root_element = xmlDocGetRootElement(doc); |
gcvote_request_t *request = (gcvote_request_t*)data; |
176 |
|
|
177 |
|
printf("gcvote: result handler\n"); |
178 |
|
|
179 |
|
/* worker thread has already reduced its refcounter */ |
180 |
|
if(request->refcount < 1) { |
181 |
|
printf("gcvote: main app isn't listening anymore\n"); |
182 |
|
return FALSE; |
183 |
|
} |
184 |
|
|
185 |
parse_root(doc, root_element); |
if(request->res) { |
186 |
|
printf("gcvote: curl failed\n"); |
187 |
|
request->cb(NULL, request->userdata); |
188 |
|
return FALSE; |
189 |
|
} |
190 |
|
|
191 |
/*free the document */ |
/* parse the reply */ |
192 |
xmlFreeDoc(doc); |
/* nothing could be parsed, just give up */ |
193 |
|
if(!request->mem.ptr || !request->mem.len) { |
194 |
|
printf("gcvote: ignoring zero length reply\n"); |
195 |
|
request->cb(NULL, request->userdata); |
196 |
|
return FALSE; |
197 |
|
} |
198 |
|
|
199 |
/* |
/* start XML parser */ |
200 |
* Free the global variables that may |
LIBXML_TEST_VERSION; |
201 |
* have been allocated by the parser. |
|
202 |
*/ |
/* parse the file and get the DOM */ |
203 |
xmlCleanupParser(); |
xmlDoc *doc = xmlReadMemory(request->mem.ptr, request->mem.len, |
204 |
|
NULL, NULL, 0); |
205 |
|
|
206 |
|
/* nothing could be parsed, just give up */ |
207 |
|
if(!doc) { |
208 |
|
request->cb(NULL, request->userdata); |
209 |
|
return FALSE; |
210 |
|
} |
211 |
|
|
212 |
|
vote_t *vote = NULL; |
213 |
|
gcvote_t *votes = parse_doc(doc); |
214 |
|
|
215 |
|
/* search for requested cache in reply and free chain */ |
216 |
|
while(votes) { |
217 |
|
gcvote_t *next = votes->next; |
218 |
|
|
219 |
|
if(!vote && !strcmp(votes->id, request->id) && (votes->quality > 0)) { |
220 |
|
|
221 |
|
vote = g_new0(vote_t, 1); |
222 |
|
vote->quality = votes->quality; |
223 |
|
vote->votes = votes->votes; |
224 |
|
} |
225 |
|
|
226 |
|
if(votes->id) g_free(votes->id); |
227 |
|
g_free(votes); |
228 |
|
votes = next; |
229 |
|
} |
230 |
|
|
231 |
|
if(vote) { |
232 |
|
printf("gcvote: worker found vote %d/%d\n", vote->quality, vote->votes); |
233 |
|
request->cb(vote, request->userdata); |
234 |
|
} else |
235 |
|
printf("gcvote: no vote found\n"); |
236 |
|
|
237 |
|
return FALSE; |
238 |
} |
} |
239 |
|
|
240 |
int gcvote_get(appdata_t *appdata, char *url) { |
void gcvote_save(appdata_t *appdata, cache_t *cache, curl_mem_t *mem) { |
241 |
CURL *curl; |
if(!mem->len || !mem->ptr) return; |
|
struct curl_httppost *formpost=NULL; |
|
|
struct curl_httppost *lastptr=NULL; |
|
|
CURLcode res; |
|
|
curl_mem_t mem = { NULL, 0 }; |
|
242 |
|
|
243 |
char *id = NULL; |
/* save data to disk */ |
244 |
|
char *filename = g_strdup_printf("%s%s/gcvote.xml", |
245 |
|
appdata->image_path, |
246 |
|
cache->id); |
247 |
|
if(checkdir(filename) != 0) |
248 |
|
printf("gcvote: unable to create file path\n"); |
249 |
|
else { |
250 |
|
printf("gcvote: write %d bytes to %s\n", mem->len, filename); |
251 |
|
|
252 |
|
int handle = g_open(filename, O_WRONLY | O_CREAT, 0644); |
253 |
|
if(handle >= 0) { |
254 |
|
int len = write(handle, mem->ptr, mem->len); |
255 |
|
close(handle); |
256 |
|
|
257 |
|
/* if write failed, then remove the file */ |
258 |
|
if(len != mem->len) |
259 |
|
g_remove(filename); |
260 |
|
} |
261 |
|
} |
262 |
|
|
263 |
if(!url) return GCVOTE_NONE; |
free(filename); |
264 |
|
} |
265 |
|
|
266 |
id = strstr(url, ID_PATTERN); |
static void *worker_thread(void *ptr) { |
267 |
if(!id) return GCVOTE_NONE; |
gcvote_request_t *request = (gcvote_request_t*)ptr; |
268 |
|
struct curl_httppost *formpost=NULL; |
269 |
|
struct curl_httppost *lastptr=NULL; |
270 |
|
|
271 |
|
printf("gcvote: worker thread running\n"); |
272 |
|
|
273 |
id += strlen(ID_PATTERN); |
request->mem.ptr = NULL; |
274 |
|
request->mem.len = 0; |
275 |
|
|
276 |
printf("request to get votes for id %s\n", id); |
printf("gcvote: request to get votes for id %s\n", request->id); |
277 |
|
|
278 |
curl_formadd(&formpost, &lastptr, |
curl_formadd(&formpost, &lastptr, |
279 |
CURLFORM_COPYNAME, "version", |
CURLFORM_COPYNAME, "version", |
280 |
CURLFORM_COPYCONTENTS, APP VERSION, |
CURLFORM_COPYCONTENTS, APP VERSION, |
281 |
CURLFORM_END); |
CURLFORM_END); |
282 |
|
|
283 |
curl_formadd(&formpost, &lastptr, |
curl_formadd(&formpost, &lastptr, |
284 |
CURLFORM_COPYNAME, "cacheIds", |
CURLFORM_COPYNAME, "cacheIds", |
285 |
CURLFORM_COPYCONTENTS, id, |
CURLFORM_COPYCONTENTS, request->id, |
286 |
CURLFORM_END); |
CURLFORM_END); |
287 |
|
|
288 |
curl = curl_easy_init(); |
/* try to init curl */ |
289 |
if(!curl) return GCVOTE_NONE; |
CURL *curl = curl_easy_init(); |
290 |
|
if(!curl) { |
291 |
|
curl_formfree(formpost); |
292 |
|
gcvote_request_free(request); |
293 |
|
|
294 |
|
/* callback anyway, so main loop can also clean up */ |
295 |
|
g_idle_add(gcvote_result_handler, request); |
296 |
|
|
297 |
|
return NULL; |
298 |
|
} |
299 |
|
|
300 |
|
curl_set_proxy(curl, request->proxy); |
301 |
|
|
302 |
/* play nice and report some user agent */ |
/* play nice and report some user agent */ |
303 |
curl_easy_setopt(curl, CURLOPT_USERAGENT, APP " " VERSION); |
curl_easy_setopt(curl, CURLOPT_USERAGENT, APP " " VERSION); |
304 |
|
|
305 |
/* download to memory */ |
/* download to memory */ |
306 |
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &mem); |
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &request->mem); |
307 |
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, mem_write); |
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, mem_write); |
308 |
|
|
309 |
/* what URL that receives this POST */ |
/* what URL that receives this POST */ |
310 |
curl_easy_setopt(curl, CURLOPT_URL, "http://dosensuche.de/GCVote/getVotes.php"); |
curl_easy_setopt(curl, CURLOPT_URL, |
311 |
|
"http://dosensuche.de/GCVote/getVotes.php"); |
312 |
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); |
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); |
313 |
res = curl_easy_perform(curl); |
|
314 |
|
request->res = curl_easy_perform(curl); |
315 |
|
printf("gcvote: curl perform returned with %d\n", request->res); |
316 |
|
|
317 |
|
// printf("received %d bytes\n", mem.len); |
318 |
|
// printf("data: %s\n", mem.ptr); |
319 |
|
|
320 |
/* always cleanup */ |
/* always cleanup */ |
321 |
curl_easy_cleanup(curl); |
curl_easy_cleanup(curl); |
322 |
|
|
323 |
|
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &request->response); |
324 |
|
|
325 |
/* then cleanup the formpost chain */ |
/* then cleanup the formpost chain */ |
326 |
curl_formfree(formpost); |
curl_formfree(formpost); |
327 |
|
|
328 |
|
printf("gcvote: worker thread done\n"); |
329 |
|
gcvote_request_free(request); |
330 |
|
|
331 |
printf("received %d bytes\n", mem.len); |
/* cause gtk main loop to handle result */ |
332 |
printf("data: %s\n", mem.ptr); |
g_idle_add(gcvote_result_handler, request); |
333 |
|
|
334 |
|
printf("gcvote: thread terminating\n"); |
335 |
|
|
336 |
|
return NULL; |
337 |
|
} |
338 |
|
|
339 |
/* start XML parser */ |
gcvote_request_t *gcvote_request(appdata_t *appdata, gcvote_cb cb, |
340 |
LIBXML_TEST_VERSION; |
char *url, gpointer data) { |
341 |
|
if(!url) return NULL; |
342 |
/* parse the file and get the DOM */ |
|
343 |
xmlDoc *doc = xmlReadMemory(mem.ptr, mem.len, NULL, NULL, 0); |
/* ------ prepare request for worker thread --------- */ |
344 |
if(!doc) { |
gcvote_request_t *request = g_new0(gcvote_request_t, 1); |
345 |
g_free(mem.ptr); |
request->url = g_strdup(url); |
346 |
return GCVOTE_NONE; |
request->id = strstr(request->url, ID_PATTERN); |
347 |
|
if(!request->id) { |
348 |
|
printf("gcvote: unable to find id\n"); |
349 |
|
gcvote_request_free(request); |
350 |
|
return NULL; |
351 |
} |
} |
|
|
|
|
printf("ok, parse doc tree\n"); |
|
|
parse_doc(doc); |
|
352 |
|
|
353 |
|
request->id += strlen(ID_PATTERN); |
354 |
|
request->refcount = 2; // master and worker hold a reference |
355 |
|
request->cb = cb; |
356 |
|
request->userdata = data; |
357 |
|
|
358 |
|
if(!g_thread_create(&worker_thread, request, FALSE, NULL) != 0) { |
359 |
|
g_warning("gcvote: failed to create the worker thread"); |
360 |
|
|
361 |
|
/* free request and return error */ |
362 |
|
request->refcount--; /* decrease by one for dead worker thread */ |
363 |
|
gcvote_request_free(request); |
364 |
|
return NULL; |
365 |
|
} |
366 |
|
|
367 |
return 0; |
return request; |
368 |
} |
} |
369 |
|
|