Annotation of parser3/src/classes/curl.C, revision 1.28
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:
1.28 ! moko 19: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.27 2013/04/28 21:29:59 moko 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) {
1.28 ! moko 47: pa_dlinit();
1.1 misha 48:
49: lt_dlhandle handle=lt_dlopen(dlopen_file_spec);
50:
51: if(!handle){
52: if(const char* result=lt_dlerror())
53: return result;
54: return "can not open the dynamic link module";
55: }
56:
57: DLINK(curl_easy_init);
58: DLINK(curl_easy_cleanup);
1.4 misha 59: DLINK(curl_version);
1.1 misha 60: DLINK(curl_easy_setopt);
61: DLINK(curl_easy_perform);
62: DLINK(curl_easy_strerror);
1.4 misha 63: DLINK(curl_easy_getinfo);
1.1 misha 64: DLINK(curl_slist_append);
1.4 misha 65: DLINK(curl_formadd);
66: DLINK(curl_formfree);
1.1 misha 67: return 0;
68: }
69:
70:
71: class ParserOptions {
72: public:
1.12 misha 73: const String *filename;
1.1 misha 74: const String *content_type;
75: bool is_text;
1.4 misha 76: Charset *charset, *response_charset;
77: struct curl_httppost *f_post;
1.19 moko 78: FILE *f_stderr;
1.1 misha 79:
1.19 moko 80: ParserOptions() : filename(0), content_type(0), is_text(true), charset(0), response_charset(0), f_post(0), f_stderr(0){}
1.4 misha 81: ~ParserOptions() {
82: f_curl_formfree(f_post);
1.19 moko 83: if(f_stderr)
84: fclose(f_stderr);
1.4 misha 85: }
86:
1.1 misha 87: };
88:
1.9 moko 89: // using TLS instead of keeping variables in request
90: THREAD_LOCAL CURL *fcurl = 0;
91: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 92:
93: static CURL *curl(){
94: if(!fcurl)
95: throw Exception("curl", 0, "outside of 'session' operator");
96: return fcurl;
97: }
98:
99: static ParserOptions &options(){
100: if(!foptions)
101: throw Exception("curl", 0, "outside of 'session' operator");
102: return *foptions;
103: }
104:
105: // using temporal object scheme to garanty cleanup call
106: class Temp_curl {
1.4 misha 107: CURL *saved_curl;
108: ParserOptions *saved_options;
1.1 misha 109: public:
1.4 misha 110: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.5 misha 111: fcurl = f_curl_easy_init();
112: foptions = new ParserOptions();
1.4 misha 113: f_curl_easy_setopt(fcurl, CURLOPT_POSTFIELDSIZE, 0); // fix libcurl bug
1.27 moko 114: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
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: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
230:
1.1 misha 231: CURL_OPT(CURL_INT, FOLLOWLOCATION);
232: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 233: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 234:
235: CURL_OPT(CURL_INT, POST);
236: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 237: CURL_OPT(CURL_INT, NOBODY);
238: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 239:
240: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
241: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 242: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 243:
244: CURL_OPT(CURL_HEADERS, HTTPHEADER);
245: CURL_OPT(CURL_URLENCODE, COOKIE);
246: CURL_OPT(CURL_URLENCODE, COOKIELIST);
247: CURL_OPT(CURL_INT, COOKIESESSION);
248:
249: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
250: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
251: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
252:
1.4 misha 253: CURL_OPT(CURL_INT, MAXREDIRS);
254: CURL_OPT(CURL_INT, POSTREDIR);
255:
256: CURL_OPT(CURL_STRING, RANGE);
257:
1.1 misha 258: CURL_OPT(CURL_INT, TIMEOUT);
259: CURL_OPT(CURL_INT, TIMEOUT_MS);
260: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
261: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
262: CURL_OPT(CURL_INT, MAXCONNECTS);
263:
1.4 misha 264: CURL_OPT(CURL_STRING, PROXY);
265: CURL_OPT(CURL_INT, PROXYPORT);
266: CURL_OPT(CURL_INT, PROXYTYPE);
267: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
268: CURL_OPT(CURL_STRING, PROXYUSERPWD);
269: CURL_OPT(CURL_INT, PROXYAUTH);
270:
1.1 misha 271: CURL_OPT(CURL_INT, FRESH_CONNECT);
272: CURL_OPT(CURL_INT, FORBID_REUSE);
273: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
274: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 275: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 276:
277: CURL_OPT(CURL_FILE, SSLCERT);
278: CURL_OPT(CURL_STRING, SSLCERTTYPE);
279: CURL_OPT(CURL_FILE, SSLKEY);
280: CURL_OPT(CURL_STRING, SSLKEYTYPE);
281: CURL_OPT(CURL_STRING, KEYPASSWD);
282: CURL_OPT(CURL_STRING, SSLENGINE);
283: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
284:
285: CURL_OPT(CURL_FILE, ISSUERCERT);
286: CURL_OPT(CURL_FILE, CRLFILE);
287:
288: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 289: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 290: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
291: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
292: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
293: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
294:
295: PARSER_OPT(PARSER_LIBRARY, "library");
296: PARSER_OPT(PARSER_NAME, "name");
297: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
298: PARSER_OPT(PARSER_MODE, "mode");
299: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 300: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 301: }
302:
303: } *curl_options=0;
304:
305: static const char *curl_urlencode(const String &s, Request& r){
306: if(options().charset){
307: Temp_client_charset temp(r.charsets, *options().charset);
308: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
309: } else
310: return s.untaint_cstr(String::L_URI);
311: }
312:
313: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
314: struct curl_slist *slist=NULL;
315:
316: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
317: String header =
1.10 moko 318: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 319: << ": "
1.10 moko 320: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 321:
322: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
323: }
324: return slist;
325: }
326:
1.4 misha 327: static const char* curl_transcode(const String &s, Request& r){
328: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
329: }
330:
331: static void curl_form(HashStringValue *value_hash, Request& r){
332: struct curl_httppost *f_last=0;
333: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
334: const char *key = curl_transcode(String(i.key().cstr()), r);
335: if(const String* svalue = i.value()->get_string()){
336: // string
337: f_curl_formadd(&options().f_post, &f_last,
338: CURLFORM_PTRNAME, key,
339: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
340: CURLFORM_END);
341: } else if(Table* tvalue = i.value()->get_table()){
342: // table
343: for(size_t t = 0; t < tvalue->count(); t++) {
344: f_curl_formadd(&options().f_post, &f_last,
345: CURLFORM_PTRNAME, key,
346: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
347: CURLFORM_END);
348: }
349: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
350: // file
351: f_curl_formadd(&options().f_post, &f_last,
352: CURLFORM_PTRNAME, key,
353: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
354: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
355: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
356: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
357: CURLFORM_END);
358: } else {
359: 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());
360: }
361: }
362: }
363:
1.18 moko 364: static const char *curl_check_file(const String &file_spec){
365: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
366: struct stat finfo;
367: if(stat(file_spec_cstr, &finfo)==0)
368: check_safe_mode(finfo, file_spec, file_spec_cstr);
369: return file_spec_cstr;
370: }
371:
1.1 misha 372: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
373: CurlOption *opt=curl_options->get(key);
374:
375: if(opt==0)
376: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
377:
378: CURLcode res = CURLE_OK;
379: Value &v=r.process_to_value(*value);
380:
381: switch (opt->type){
382: case CurlOption::CURL_STRING:{
383: // string curl option
384: const char *value_str=v.as_string().cstr();
385: res=f_curl_easy_setopt(curl(), opt->id, value_str);
386: break;
387: }
388: case CurlOption::CURL_URLENCODE:{
389: // url-encoded string curl option
390: const char *value_str=curl_urlencode(v.as_string(), r);
391: res=f_curl_easy_setopt(curl(), opt->id, value_str);
392: break;
393: }
1.4 misha 394: case CurlOption::CURL_URL:{
395: // url-encoded string curl_url option
1.5 misha 396: const String url = v.as_string();
397: if(!url.starts_with("http://") && !url.starts_with("https://"))
398: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.4 misha 399: const char *value_str=curl_urlencode(url, r);
400: res=f_curl_easy_setopt(curl(), opt->id, value_str);
401: break;
402: }
1.1 misha 403: case CurlOption::CURL_INT:{
1.2 misha 404: // integer curl option
405: long value_int=(long)v.as_double();
1.1 misha 406: res=f_curl_easy_setopt(curl(), opt->id, value_int);
407: break;
408: }
409: case CurlOption::CURL_POST:{
410: // http post curl option
411: if(v.get_string()){
1.2 misha 412: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 413: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
414: } else {
415: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 416: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 417: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
418: }
419: break;
420: }
1.4 misha 421: case CurlOption::CURL_FORM:{
422: HashStringValue *value_hash = v.get_hash();
423: if(value_hash){
424: curl_form(value_hash, r);
1.5 misha 425: } else if(v.get_string()->is_empty()){
1.4 misha 426: f_curl_formfree(options().f_post);
427: options().f_post = 0;
428: } else {
1.16 moko 429: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 430: }
1.4 misha 431: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
432: break;
433: }
1.1 misha 434: case CurlOption::CURL_HEADERS:{
435: // http headers curl option
436: HashStringValue *value_hash=v.get_hash();
437: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
438: break;
439: }
440: case CurlOption::CURL_FILE:{
441: // file-spec curl option
1.18 moko 442: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
443: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 444: break;
445: }
1.16 moko 446: case CurlOption::CURL_STDERR:{
447: // verbose output redirection from stderr to file curl option
1.18 moko 448: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 449: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
450: if (f_stderr){
451: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 452: } else {
1.18 moko 453: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 454: }
455: break;
456: }
1.1 misha 457: case CurlOption::PARSER_LIBRARY:{
458: // 'library' parser option
459: if(fcurl==0){
460: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
461: } else
1.16 moko 462: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 463: break;
464: }
465: case CurlOption::PARSER_NAME:{
466: // 'name' parser option
1.12 misha 467: options().filename=&v.as_string();
1.1 misha 468: break;
469: }
470: case CurlOption::PARSER_CONTENT_TYPE:{
471: // 'content-type' parser option
472: options().content_type=&v.as_string();
473: break;
474: }
475: case CurlOption::PARSER_MODE:{
476: // 'mode' parser option
1.12 misha 477: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 478: break;
479: }
480: case CurlOption::PARSER_CHARSET:{
481: // 'charset' parser option
482: options().charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
483: break;
484: }
1.4 misha 485: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 486: // 'response-charset' parser option
1.4 misha 487: options().response_charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
488: break;
489: }
1.1 misha 490: }
491:
492: if(res != CURLE_OK)
493: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
494: }
495:
1.3 misha 496: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 497: if(curl_options==0)
498: curl_options=new CurlOptionHash();
499:
1.20 misha 500: if(HashStringValue* options=params.as_hash(0))
1.1 misha 501: options->for_each<Request&>(curl_setopt, r);
502: }
503:
504:
505: class Curl_buffer{
506: public:
507: char *buf;
508: size_t length;
509: size_t buf_size;
510:
511: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
512: };
513:
514: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
515: if(result == 0)
516: return 0;
517:
518: size=size*nmemb;
519: if(size>0){
520: if(result->length + size >= result->buf_size){
521: result->buf_size = result->buf_size*2 + size;
522: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
523: }
524: memcpy(result->buf+result->length, data, size);
525: result->length += size;
526: }
527: return size;
528: }
529:
1.24 misha 530: class Curl_response {
531: public:
532: HASH_STRING<char*> headers;
533: Array<char*> cookies;
534: };
535:
536: static int curl_header(char *data, size_t size, size_t nmemb, Curl_response *result){
1.1 misha 537: if(result == 0)
538: return 0;
539:
540: size=size*nmemb;
541: if(size>0){
542: char *line=pa_strdup(data, size);
543: char *value=lsplit(line,':');
544: if(value && *line){
545: // we need only headers, not the response code
1.24 misha 546: const char* HEADER_NAME=str_upper(line);
547: result->headers.put(HEADER_NAME, value);
548: if(strcmp(HEADER_NAME, "SET-COOKIE")==0)
549: result->cookies+=value;
1.1 misha 550: }
551: }
552: return size;
553: }
554:
555: #define CURL_SETOPT(option, arg, message) \
556: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
557: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
558: }
559:
560: static void _curl_load_action(Request& r, MethodParams& params){
561: if(params.count()==1)
1.3 misha 562: _curl_options(r, params);
1.1 misha 563:
564: CURLcode res;
565:
566: Curl_buffer body;
567: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
568: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
569:
570: // we need a container for headers as VFile fields can be put only after VFile.set
1.24 misha 571: Curl_response response;
1.1 misha 572: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 573: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 574:
575: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 576: const char *ex_type = 0;
1.4 misha 577: switch(res){
578: case CURLE_OPERATION_TIMEDOUT:
579: ex_type = "curl.timeout"; break;
580: case CURLE_COULDNT_RESOLVE_HOST:
581: ex_type = "curl.host"; break;
582: case CURLE_COULDNT_CONNECT:
583: ex_type = "curl.connect"; break;
584: case CURLE_HTTP_RETURNED_ERROR:
585: ex_type = "curl.status"; break;
586: case CURLE_SSL_CONNECT_ERROR:
587: case CURLE_SSL_CERTPROBLEM:
588: case CURLE_SSL_CIPHER:
589: case CURLE_SSL_CACERT:
590: case CURLE_SSL_ENGINE_INITFAILED:
591: ex_type = "curl.ssl"; break;
592: }
593: throw Exception( ex_type ? ex_type : "curl.fail", 0, "%s", f_curl_easy_strerror(res));
1.1 misha 594: }
595:
596: // assure trailing zero
597: body.buf[body.length]=0;
598:
1.4 misha 599: VFile& result=*new VFile;
600:
1.24 misha 601: String::Body ct_header = response.headers.get(HTTP_CONTENT_TYPE_UPPER);
1.8 moko 602: Charset *asked_charset = options().response_charset;
603: if (asked_charset == 0){
604: Charset *remote_charset = ct_header.is_empty() ? 0 : detect_charset(ct_header.trim(String::TRIM_BOTH, " \t\n\r").cstr());
605: asked_charset = remote_charset ? remote_charset : options().charset;
606: }
1.1 misha 607:
608: if(options().is_text && asked_charset != 0){
609: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
610: body.buf=(char *)c.str;
611: body.length=c.length;
612: }
613:
1.21 misha 614: result.set(true/*tainted*/, options().is_text, body.buf, body.length, options().filename
1.22 moko 615: , options().content_type ? new VString(*options().content_type) : 0, &r);
1.4 misha 616: long http_status = 0;
617: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
618: result.fields().put("status", new VInt(http_status));
619: }
620:
1.24 misha 621: for(HASH_STRING<char *>::Iterator i(response.headers); i; i.next() ){
1.23 misha 622: String::Body HEADER_NAME=i.key();
1.1 misha 623: String::Body value=i.value();
624: if(asked_charset){
1.23 misha 625: HEADER_NAME=Charset::transcode(HEADER_NAME, *asked_charset, r.charsets.source());
1.1 misha 626: value=Charset::transcode(value, *asked_charset, r.charsets.source());
627: }
1.24 misha 628: result.fields().put(HEADER_NAME, new VString(*new String(value.trim(String::TRIM_BOTH, " \t\n\r"), String::L_TAINTED)));
629: }
1.23 misha 630:
1.24 misha 631: // filling $.cookies
632: Table* tcookies=0;
633:
634: for(Array_iterator<char*> i(response.cookies); i.has_next(); ){
635: if(!tcookies){
636: Table::columns_type columns=new ArrayString(1);
637: *columns+=new String("value");
638: tcookies=new Table(columns);
1.23 misha 639: }
1.24 misha 640: String::Body value=i.next();
641: if(asked_charset)
642: value=Charset::transcode(value, *asked_charset, r.charsets.source());
643: ArrayString& row=*new ArrayString(1);
644: row+=new String(value.trim(String::TRIM_BOTH, " \t\n\r"), String::L_TAINTED);
645: *tcookies+=&row;
1.1 misha 646: }
647:
1.24 misha 648: if(tcookies)
649: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, tcookies)));
1.23 misha 650:
1.1 misha 651: r.write_no_lang(result);
652: }
653:
654: static void _curl_load(Request& r, MethodParams& params){
655: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
656: }
657:
658: // constructor
659: MCurl::MCurl(): Methoded("curl") {
660: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 661: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 662: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.1 misha 663: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 664: }
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