Annotation of parser3/src/classes/curl.C, revision 1.25
1.1 misha 1: /** @file
2: Parser: @b curl parser class.
3:
1.13 moko 4: Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
1.1 misha 5: */
6:
1.3 misha 7: #include "pa_config_includes.h"
8:
1.1 misha 9: #include "pa_vmethod_frame.h"
10: #include "pa_request.h"
11: #include "pa_vfile.h"
12: #include "pa_charsets.h"
1.4 misha 13: #include "pa_vstring.h"
14: #include "pa_vtable.h"
15: #include "pa_common.h"
1.11 moko 16: #include "pa_http.h"
1.5 misha 17: #include "ltdl.h"
1.1 misha 18:
1.25 ! misha 19: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.24 2013-03-14 02:42:57 misha Exp $";
1.13 moko 20:
1.1 misha 21: class MCurl: public Methoded {
22: public:
23: MCurl();
24: };
25:
26: // global variables
27:
28: DECLARE_CLASS_VAR(curl, new MCurl, 0);
29:
30: #include "curl.h"
31:
32: typedef CURL *(*t_curl_easy_init)(); t_curl_easy_init f_curl_easy_init;
33: typedef CURLcode (*t_curl_easy_setopt)(CURL *, CURLoption option, ...); t_curl_easy_setopt f_curl_easy_setopt;
34: typedef CURLcode (*t_curl_easy_perform)(CURL *); t_curl_easy_perform f_curl_easy_perform;
35: typedef void (*t_curl_easy_cleanup)(CURL *); t_curl_easy_cleanup f_curl_easy_cleanup;
36: typedef const char *(*t_curl_easy_strerror)(CURLcode); t_curl_easy_strerror f_curl_easy_strerror;
1.4 misha 37: typedef CURLcode (*t_curl_easy_getinfo)(CURL *curl, CURLINFO info, ...); t_curl_easy_getinfo f_curl_easy_getinfo;
1.1 misha 38: typedef struct curl_slist *(*t_curl_slist_append)(struct curl_slist *,const char *); t_curl_slist_append f_curl_slist_append;
1.4 misha 39: typedef const char *(*t_curl_version)(); t_curl_version f_curl_version;
40: typedef CURLFORMcode (*t_curl_formadd)(struct curl_httppost **httppost, struct curl_httppost **last_post, ...); t_curl_formadd f_curl_formadd;
41: typedef void (*t_curl_formfree)(struct curl_httppost *form); t_curl_formfree f_curl_formfree;
1.1 misha 42:
43: #define GLINK(name) f_##name=(t_##name)lt_dlsym(handle, #name);
44: #define DLINK(name) GLINK(name) if(!f_##name) return "function " #name " was not found";
45:
1.14 moko 46: static const char *dlink(const char *dlopen_file_spec) {
1.1 misha 47: if(lt_dlinit())
48: return lt_dlerror();
49:
50: lt_dlhandle handle=lt_dlopen(dlopen_file_spec);
51:
52: if(!handle){
53: if(const char* result=lt_dlerror())
54: return result;
55: return "can not open the dynamic link module";
56: }
57:
58: DLINK(curl_easy_init);
59: DLINK(curl_easy_cleanup);
1.4 misha 60: DLINK(curl_version);
1.1 misha 61: DLINK(curl_easy_setopt);
62: DLINK(curl_easy_perform);
63: DLINK(curl_easy_strerror);
1.4 misha 64: DLINK(curl_easy_getinfo);
1.1 misha 65: DLINK(curl_slist_append);
1.4 misha 66: DLINK(curl_formadd);
67: DLINK(curl_formfree);
1.1 misha 68: return 0;
69: }
70:
71:
72: class ParserOptions {
73: public:
1.12 misha 74: const String *filename;
1.1 misha 75: const String *content_type;
76: bool is_text;
1.4 misha 77: Charset *charset, *response_charset;
78: struct curl_httppost *f_post;
1.19 moko 79: FILE *f_stderr;
1.1 misha 80:
1.19 moko 81: ParserOptions() : filename(0), content_type(0), is_text(true), charset(0), response_charset(0), f_post(0), f_stderr(0){}
1.4 misha 82: ~ParserOptions() {
83: f_curl_formfree(f_post);
1.19 moko 84: if(f_stderr)
85: fclose(f_stderr);
1.4 misha 86: }
87:
1.1 misha 88: };
89:
1.9 moko 90: // using TLS instead of keeping variables in request
91: THREAD_LOCAL CURL *fcurl = 0;
92: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 93:
94: static CURL *curl(){
95: if(!fcurl)
96: throw Exception("curl", 0, "outside of 'session' operator");
97: return fcurl;
98: }
99:
100: static ParserOptions &options(){
101: if(!foptions)
102: throw Exception("curl", 0, "outside of 'session' operator");
103: return *foptions;
104: }
105:
106: // using temporal object scheme to garanty cleanup call
107: class Temp_curl {
1.4 misha 108: CURL *saved_curl;
109: ParserOptions *saved_options;
1.1 misha 110: public:
1.4 misha 111: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.5 misha 112: fcurl = f_curl_easy_init();
113: foptions = new ParserOptions();
1.4 misha 114: f_curl_easy_setopt(fcurl, CURLOPT_POSTFIELDSIZE, 0); // fix libcurl bug
1.1 misha 115: }
116: ~Temp_curl() {
117: f_curl_easy_cleanup(fcurl);
118: fcurl = saved_curl;
119: delete foptions;
120: foptions = saved_options;
121: }
122: };
123:
124: bool curl_linked = false;
125: #ifdef WIN32
126: const char *curl_library="libcurl.dll";
127: #else
128: const char *curl_library="libcurl.so";
129: #endif
130:
131: const char *curl_status = 0;
132:
133: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
134: if(!curl_linked){
135: curl_linked=true;
136: curl_status=dlink(curl_library);
137: }
138:
139: if(curl_status == 0){
140: Temp_curl temp_curl;
141: action(r,params);
142: } else {
143: throw Exception("curl", 0, "failed to load curl library %s: %s", curl_library, curl_status);
144: }
145: }
146:
147: static void _curl_session_action(Request& r, MethodParams& params){
148: Value& body_code=params.as_junction(0, "body must be code");
149: r.process_write(body_code);
150: }
151:
152: static void _curl_session(Request& r, MethodParams& params){
153: temp_curl(_curl_session_action, r, params);
154: }
155:
1.5 misha 156: static void _curl_version_action(Request& r, MethodParams& ){
1.4 misha 157: r.write_no_lang(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
158: }
159:
160: static void _curl_version(Request& r, MethodParams& params){
161: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
162: }
1.1 misha 163:
164: static char *str_lower(const char *str){
165: char *result=pa_strdup(str);
166: for(char* c=result; *c; c++)
167: *c=(char)tolower((unsigned char)*c);
168: return result;
169: }
170:
171: static char *str_upper(const char *str){
172: char *result=pa_strdup(str);
173: for(char* c=result; *c; c++)
174: *c=(char)toupper((unsigned char)*c);
175: return result;
176: }
177:
178: class CurlOption {
179: public:
180:
181: enum OptionType {
182: CURL_STRING,
183: CURL_URLENCODE, // url-encoded string
1.4 misha 184: CURL_URL,
1.1 misha 185: CURL_INT,
186: CURL_POST,
1.4 misha 187: CURL_FORM,
1.1 misha 188: CURL_HEADERS,
189: CURL_FILE,
1.15 moko 190: CURL_STDERR,
1.1 misha 191: PARSER_LIBRARY,
192: PARSER_NAME,
193: PARSER_CONTENT_TYPE,
194: PARSER_MODE,
1.4 misha 195: PARSER_CHARSET,
196: PARSER_RESPONSE_CHARSET
1.1 misha 197: };
198:
199: CURLoption id;
200: OptionType type;
201: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
202: };
203:
204: class CurlOptionHash: public HashString<CurlOption*> {
205: public:
206: CurlOptionHash() {
207: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
208: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 209: CURL_OPT(CURL_URL, URL);
1.1 misha 210: CURL_OPT(CURL_STRING, INTERFACE);
211: CURL_OPT(CURL_INT, LOCALPORT);
212: CURL_OPT(CURL_INT, PORT);
1.4 misha 213:
1.15 moko 214: CURL_OPT(CURL_INT, VERBOSE);
215: CURL_OPT(CURL_STDERR, STDERR);
216: CURL_OPT(CURL_INT, MAXFILESIZE);
217:
1.1 misha 218: CURL_OPT(CURL_INT, HTTPAUTH);
219: CURL_OPT(CURL_STRING, USERPWD);
220:
221: CURL_OPT(CURL_STRING, USERNAME);
222: CURL_OPT(CURL_STRING, PASSWORD);
223:
1.4 misha 224: CURL_OPT(CURL_URLENCODE, USERAGENT);
225: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 226: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 ! misha 227:
1.1 misha 228: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 ! misha 229: #ifdef CURLOPT_ACCEPT_ENCODING
! 230: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
! 231: #endif
! 232:
1.1 misha 233: CURL_OPT(CURL_INT, FOLLOWLOCATION);
234: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
235:
236: CURL_OPT(CURL_INT, POST);
237: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 238: CURL_OPT(CURL_INT, NOBODY);
239: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 240:
241: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
242: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 243: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 244:
245: CURL_OPT(CURL_HEADERS, HTTPHEADER);
246: CURL_OPT(CURL_URLENCODE, COOKIE);
247: CURL_OPT(CURL_URLENCODE, COOKIELIST);
248: CURL_OPT(CURL_INT, COOKIESESSION);
249:
250: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
251: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
252: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
253:
1.4 misha 254: CURL_OPT(CURL_INT, MAXREDIRS);
255: CURL_OPT(CURL_INT, POSTREDIR);
256:
257: CURL_OPT(CURL_STRING, RANGE);
258:
1.1 misha 259: CURL_OPT(CURL_INT, TIMEOUT);
260: CURL_OPT(CURL_INT, TIMEOUT_MS);
261: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
262: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
263: CURL_OPT(CURL_INT, MAXCONNECTS);
264:
1.4 misha 265: CURL_OPT(CURL_STRING, PROXY);
266: CURL_OPT(CURL_INT, PROXYPORT);
267: CURL_OPT(CURL_INT, PROXYTYPE);
268: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
269: CURL_OPT(CURL_STRING, PROXYUSERPWD);
270: CURL_OPT(CURL_INT, PROXYAUTH);
271:
1.1 misha 272: CURL_OPT(CURL_INT, FRESH_CONNECT);
273: CURL_OPT(CURL_INT, FORBID_REUSE);
274: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
275: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 276: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 277:
278: CURL_OPT(CURL_FILE, SSLCERT);
279: CURL_OPT(CURL_STRING, SSLCERTTYPE);
280: CURL_OPT(CURL_FILE, SSLKEY);
281: CURL_OPT(CURL_STRING, SSLKEYTYPE);
282: CURL_OPT(CURL_STRING, KEYPASSWD);
283: CURL_OPT(CURL_STRING, SSLENGINE);
284: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
285:
286: CURL_OPT(CURL_FILE, ISSUERCERT);
287: CURL_OPT(CURL_FILE, CRLFILE);
288:
289: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 290: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 291: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
292: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
293: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
294: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
295:
296: PARSER_OPT(PARSER_LIBRARY, "library");
297: PARSER_OPT(PARSER_NAME, "name");
298: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
299: PARSER_OPT(PARSER_MODE, "mode");
300: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 301: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 302: }
303:
304: } *curl_options=0;
305:
306: static const char *curl_urlencode(const String &s, Request& r){
307: if(options().charset){
308: Temp_client_charset temp(r.charsets, *options().charset);
309: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
310: } else
311: return s.untaint_cstr(String::L_URI);
312: }
313:
314: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
315: struct curl_slist *slist=NULL;
316:
317: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
318: String header =
1.10 moko 319: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 320: << ": "
1.10 moko 321: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 322:
323: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
324: }
325: return slist;
326: }
327:
1.4 misha 328: static const char* curl_transcode(const String &s, Request& r){
329: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
330: }
331:
332: static void curl_form(HashStringValue *value_hash, Request& r){
333: struct curl_httppost *f_last=0;
334: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
335: const char *key = curl_transcode(String(i.key().cstr()), r);
336: if(const String* svalue = i.value()->get_string()){
337: // string
338: f_curl_formadd(&options().f_post, &f_last,
339: CURLFORM_PTRNAME, key,
340: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
341: CURLFORM_END);
342: } else if(Table* tvalue = i.value()->get_table()){
343: // table
344: for(size_t t = 0; t < tvalue->count(); t++) {
345: f_curl_formadd(&options().f_post, &f_last,
346: CURLFORM_PTRNAME, key,
347: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
348: CURLFORM_END);
349: }
350: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
351: // file
352: f_curl_formadd(&options().f_post, &f_last,
353: CURLFORM_PTRNAME, key,
354: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
355: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
356: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
357: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
358: CURLFORM_END);
359: } else {
360: throw Exception("curl", new String(i.key(), String::L_TAINTED), "is %s, form option value can be string, table or file only", i.value()->type());
361: }
362: }
363: }
364:
1.18 moko 365: static const char *curl_check_file(const String &file_spec){
366: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
367: struct stat finfo;
368: if(stat(file_spec_cstr, &finfo)==0)
369: check_safe_mode(finfo, file_spec, file_spec_cstr);
370: return file_spec_cstr;
371: }
372:
1.1 misha 373: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
374: CurlOption *opt=curl_options->get(key);
375:
376: if(opt==0)
377: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
378:
379: CURLcode res = CURLE_OK;
380: Value &v=r.process_to_value(*value);
381:
382: switch (opt->type){
383: case CurlOption::CURL_STRING:{
384: // string curl option
385: const char *value_str=v.as_string().cstr();
386: res=f_curl_easy_setopt(curl(), opt->id, value_str);
387: break;
388: }
389: case CurlOption::CURL_URLENCODE:{
390: // url-encoded string curl option
391: const char *value_str=curl_urlencode(v.as_string(), r);
392: res=f_curl_easy_setopt(curl(), opt->id, value_str);
393: break;
394: }
1.4 misha 395: case CurlOption::CURL_URL:{
396: // url-encoded string curl_url option
1.5 misha 397: const String url = v.as_string();
398: if(!url.starts_with("http://") && !url.starts_with("https://"))
399: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.4 misha 400: const char *value_str=curl_urlencode(url, r);
401: res=f_curl_easy_setopt(curl(), opt->id, value_str);
402: break;
403: }
1.1 misha 404: case CurlOption::CURL_INT:{
1.2 misha 405: // integer curl option
406: long value_int=(long)v.as_double();
1.1 misha 407: res=f_curl_easy_setopt(curl(), opt->id, value_int);
408: break;
409: }
410: case CurlOption::CURL_POST:{
411: // http post curl option
412: if(v.get_string()){
1.2 misha 413: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 414: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
415: } else {
416: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 417: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 418: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
419: }
420: break;
421: }
1.4 misha 422: case CurlOption::CURL_FORM:{
423: HashStringValue *value_hash = v.get_hash();
424: if(value_hash){
425: curl_form(value_hash, r);
1.5 misha 426: } else if(v.get_string()->is_empty()){
1.4 misha 427: f_curl_formfree(options().f_post);
428: options().f_post = 0;
429: } else {
1.16 moko 430: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 431: }
1.4 misha 432: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
433: break;
434: }
1.1 misha 435: case CurlOption::CURL_HEADERS:{
436: // http headers curl option
437: HashStringValue *value_hash=v.get_hash();
438: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
439: break;
440: }
441: case CurlOption::CURL_FILE:{
442: // file-spec curl option
1.18 moko 443: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
444: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 445: break;
446: }
1.16 moko 447: case CurlOption::CURL_STDERR:{
448: // verbose output redirection from stderr to file curl option
1.18 moko 449: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 450: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
451: if (f_stderr){
452: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 453: } else {
1.18 moko 454: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 455: }
456: break;
457: }
1.1 misha 458: case CurlOption::PARSER_LIBRARY:{
459: // 'library' parser option
460: if(fcurl==0){
461: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
462: } else
1.16 moko 463: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 464: break;
465: }
466: case CurlOption::PARSER_NAME:{
467: // 'name' parser option
1.12 misha 468: options().filename=&v.as_string();
1.1 misha 469: break;
470: }
471: case CurlOption::PARSER_CONTENT_TYPE:{
472: // 'content-type' parser option
473: options().content_type=&v.as_string();
474: break;
475: }
476: case CurlOption::PARSER_MODE:{
477: // 'mode' parser option
1.12 misha 478: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 479: break;
480: }
481: case CurlOption::PARSER_CHARSET:{
482: // 'charset' parser option
483: options().charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
484: break;
485: }
1.4 misha 486: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 487: // 'response-charset' parser option
1.4 misha 488: options().response_charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
489: break;
490: }
1.1 misha 491: }
492:
493: if(res != CURLE_OK)
494: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
495: }
496:
1.3 misha 497: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 498: if(curl_options==0)
499: curl_options=new CurlOptionHash();
500:
1.20 misha 501: if(HashStringValue* options=params.as_hash(0))
1.1 misha 502: options->for_each<Request&>(curl_setopt, r);
503: }
504:
505:
506: class Curl_buffer{
507: public:
508: char *buf;
509: size_t length;
510: size_t buf_size;
511:
512: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
513: };
514:
515: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
516: if(result == 0)
517: return 0;
518:
519: size=size*nmemb;
520: if(size>0){
521: if(result->length + size >= result->buf_size){
522: result->buf_size = result->buf_size*2 + size;
523: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
524: }
525: memcpy(result->buf+result->length, data, size);
526: result->length += size;
527: }
528: return size;
529: }
530:
1.24 misha 531: class Curl_response {
532: public:
533: HASH_STRING<char*> headers;
534: Array<char*> cookies;
535: };
536:
537: static int curl_header(char *data, size_t size, size_t nmemb, Curl_response *result){
1.1 misha 538: if(result == 0)
539: return 0;
540:
541: size=size*nmemb;
542: if(size>0){
543: char *line=pa_strdup(data, size);
544: char *value=lsplit(line,':');
545: if(value && *line){
546: // we need only headers, not the response code
1.24 misha 547: const char* HEADER_NAME=str_upper(line);
548: result->headers.put(HEADER_NAME, value);
549: if(strcmp(HEADER_NAME, "SET-COOKIE")==0)
550: result->cookies+=value;
1.1 misha 551: }
552: }
553: return size;
554: }
555:
556: #define CURL_SETOPT(option, arg, message) \
557: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
558: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
559: }
560:
561: static void _curl_load_action(Request& r, MethodParams& params){
562: if(params.count()==1)
1.3 misha 563: _curl_options(r, params);
1.1 misha 564:
565: CURLcode res;
566:
567: Curl_buffer body;
568: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
569: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
570:
571: // we need a container for headers as VFile fields can be put only after VFile.set
1.24 misha 572: Curl_response response;
1.1 misha 573: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 574: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 575:
576: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 577: const char *ex_type = 0;
1.4 misha 578: switch(res){
579: case CURLE_OPERATION_TIMEDOUT:
580: ex_type = "curl.timeout"; break;
581: case CURLE_COULDNT_RESOLVE_HOST:
582: ex_type = "curl.host"; break;
583: case CURLE_COULDNT_CONNECT:
584: ex_type = "curl.connect"; break;
585: case CURLE_HTTP_RETURNED_ERROR:
586: ex_type = "curl.status"; break;
587: case CURLE_SSL_CONNECT_ERROR:
588: case CURLE_SSL_CERTPROBLEM:
589: case CURLE_SSL_CIPHER:
590: case CURLE_SSL_CACERT:
591: case CURLE_SSL_ENGINE_INITFAILED:
592: ex_type = "curl.ssl"; break;
593: }
594: throw Exception( ex_type ? ex_type : "curl.fail", 0, "%s", f_curl_easy_strerror(res));
1.1 misha 595: }
596:
597: // assure trailing zero
598: body.buf[body.length]=0;
599:
1.4 misha 600: VFile& result=*new VFile;
601:
1.24 misha 602: String::Body ct_header = response.headers.get(HTTP_CONTENT_TYPE_UPPER);
1.8 moko 603: Charset *asked_charset = options().response_charset;
604: if (asked_charset == 0){
605: Charset *remote_charset = ct_header.is_empty() ? 0 : detect_charset(ct_header.trim(String::TRIM_BOTH, " \t\n\r").cstr());
606: asked_charset = remote_charset ? remote_charset : options().charset;
607: }
1.1 misha 608:
609: if(options().is_text && asked_charset != 0){
610: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
611: body.buf=(char *)c.str;
612: body.length=c.length;
613: }
614:
1.21 misha 615: result.set(true/*tainted*/, options().is_text, body.buf, body.length, options().filename
1.22 moko 616: , options().content_type ? new VString(*options().content_type) : 0, &r);
1.4 misha 617: long http_status = 0;
618: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
619: result.fields().put("status", new VInt(http_status));
620: }
621:
1.24 misha 622: for(HASH_STRING<char *>::Iterator i(response.headers); i; i.next() ){
1.23 misha 623: String::Body HEADER_NAME=i.key();
1.1 misha 624: String::Body value=i.value();
625: if(asked_charset){
1.23 misha 626: HEADER_NAME=Charset::transcode(HEADER_NAME, *asked_charset, r.charsets.source());
1.1 misha 627: value=Charset::transcode(value, *asked_charset, r.charsets.source());
628: }
1.24 misha 629: result.fields().put(HEADER_NAME, new VString(*new String(value.trim(String::TRIM_BOTH, " \t\n\r"), String::L_TAINTED)));
630: }
1.23 misha 631:
1.24 misha 632: // filling $.cookies
633: Table* tcookies=0;
634:
635: for(Array_iterator<char*> i(response.cookies); i.has_next(); ){
636: if(!tcookies){
637: Table::columns_type columns=new ArrayString(1);
638: *columns+=new String("value");
639: tcookies=new Table(columns);
1.23 misha 640: }
1.24 misha 641: String::Body value=i.next();
642: if(asked_charset)
643: value=Charset::transcode(value, *asked_charset, r.charsets.source());
644: ArrayString& row=*new ArrayString(1);
645: row+=new String(value.trim(String::TRIM_BOTH, " \t\n\r"), String::L_TAINTED);
646: *tcookies+=&row;
1.1 misha 647: }
648:
1.24 misha 649: if(tcookies)
650: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, tcookies)));
1.23 misha 651:
1.1 misha 652: r.write_no_lang(result);
653: }
654:
655: static void _curl_load(Request& r, MethodParams& params){
656: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
657: }
658:
659: // constructor
660: MCurl::MCurl(): Methoded("curl") {
661: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 662: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 663: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.1 misha 664: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 665: }
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