Annotation of parser3/src/classes/curl.C, revision 1.38
1.1 misha 1: /** @file
2: Parser: @b curl parser class.
3:
1.35 moko 4: Copyright (c) 2001-2015 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"
1.32 moko 14: #include "pa_vdate.h"
1.4 misha 15: #include "pa_vtable.h"
16: #include "pa_common.h"
1.11 moko 17: #include "pa_http.h"
1.5 misha 18: #include "ltdl.h"
1.1 misha 19:
1.38 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.37 2016/05/12 19:44:49 moko Exp $";
1.13 moko 21:
1.1 misha 22: class MCurl: public Methoded {
23: public:
24: MCurl();
25: };
26:
27: // global variables
28:
1.36 moko 29: DECLARE_CLASS_VAR(curl, new MCurl);
1.1 misha 30:
31: #include "curl.h"
32:
33: typedef CURL *(*t_curl_easy_init)(); t_curl_easy_init f_curl_easy_init;
34: typedef CURLcode (*t_curl_easy_setopt)(CURL *, CURLoption option, ...); t_curl_easy_setopt f_curl_easy_setopt;
35: typedef CURLcode (*t_curl_easy_perform)(CURL *); t_curl_easy_perform f_curl_easy_perform;
36: typedef void (*t_curl_easy_cleanup)(CURL *); t_curl_easy_cleanup f_curl_easy_cleanup;
37: typedef const char *(*t_curl_easy_strerror)(CURLcode); t_curl_easy_strerror f_curl_easy_strerror;
1.4 misha 38: typedef CURLcode (*t_curl_easy_getinfo)(CURL *curl, CURLINFO info, ...); t_curl_easy_getinfo f_curl_easy_getinfo;
1.1 misha 39: typedef struct curl_slist *(*t_curl_slist_append)(struct curl_slist *,const char *); t_curl_slist_append f_curl_slist_append;
1.4 misha 40: typedef const char *(*t_curl_version)(); t_curl_version f_curl_version;
41: typedef CURLFORMcode (*t_curl_formadd)(struct curl_httppost **httppost, struct curl_httppost **last_post, ...); t_curl_formadd f_curl_formadd;
42: typedef void (*t_curl_formfree)(struct curl_httppost *form); t_curl_formfree f_curl_formfree;
1.1 misha 43:
44: #define GLINK(name) f_##name=(t_##name)lt_dlsym(handle, #name);
45: #define DLINK(name) GLINK(name) if(!f_##name) return "function " #name " was not found";
46:
1.14 moko 47: static const char *dlink(const char *dlopen_file_spec) {
1.28 moko 48: pa_dlinit();
1.1 misha 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
1.27 moko 115: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
1.1 misha 116: }
117: ~Temp_curl() {
118: f_curl_easy_cleanup(fcurl);
119: fcurl = saved_curl;
120: delete foptions;
121: foptions = saved_options;
122: }
123: };
124:
125: bool curl_linked = false;
1.29 moko 126: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 127:
128: const char *curl_status = 0;
129:
130: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
131: if(!curl_linked){
132: curl_linked=true;
133: curl_status=dlink(curl_library);
134: }
135:
136: if(curl_status == 0){
137: Temp_curl temp_curl;
138: action(r,params);
139: } else {
140: throw Exception("curl", 0, "failed to load curl library %s: %s", curl_library, curl_status);
141: }
142: }
143:
144: static void _curl_session_action(Request& r, MethodParams& params){
145: Value& body_code=params.as_junction(0, "body must be code");
146: r.process_write(body_code);
147: }
148:
149: static void _curl_session(Request& r, MethodParams& params){
150: temp_curl(_curl_session_action, r, params);
151: }
152:
1.5 misha 153: static void _curl_version_action(Request& r, MethodParams& ){
1.4 misha 154: r.write_no_lang(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
155: }
156:
157: static void _curl_version(Request& r, MethodParams& params){
158: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
159: }
1.1 misha 160:
161: class CurlOption {
162: public:
163:
164: enum OptionType {
165: CURL_STRING,
166: CURL_URLENCODE, // url-encoded string
1.4 misha 167: CURL_URL,
1.1 misha 168: CURL_INT,
169: CURL_POST,
1.4 misha 170: CURL_FORM,
1.1 misha 171: CURL_HEADERS,
172: CURL_FILE,
1.15 moko 173: CURL_STDERR,
1.1 misha 174: PARSER_LIBRARY,
175: PARSER_NAME,
176: PARSER_CONTENT_TYPE,
177: PARSER_MODE,
1.4 misha 178: PARSER_CHARSET,
179: PARSER_RESPONSE_CHARSET
1.1 misha 180: };
181:
182: CURLoption id;
183: OptionType type;
184: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
185: };
186:
187: class CurlOptionHash: public HashString<CurlOption*> {
188: public:
189: CurlOptionHash() {
190: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
191: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 192: CURL_OPT(CURL_URL, URL);
1.1 misha 193: CURL_OPT(CURL_STRING, INTERFACE);
194: CURL_OPT(CURL_INT, LOCALPORT);
195: CURL_OPT(CURL_INT, PORT);
1.4 misha 196:
1.15 moko 197: CURL_OPT(CURL_INT, VERBOSE);
198: CURL_OPT(CURL_STDERR, STDERR);
199: CURL_OPT(CURL_INT, MAXFILESIZE);
200:
1.1 misha 201: CURL_OPT(CURL_INT, HTTPAUTH);
202: CURL_OPT(CURL_STRING, USERPWD);
203:
204: CURL_OPT(CURL_STRING, USERNAME);
205: CURL_OPT(CURL_STRING, PASSWORD);
206:
1.4 misha 207: CURL_OPT(CURL_URLENCODE, USERAGENT);
208: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 209: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 210:
1.1 misha 211: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 212: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
213:
1.1 misha 214: CURL_OPT(CURL_INT, FOLLOWLOCATION);
215: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 216: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 217:
218: CURL_OPT(CURL_INT, POST);
219: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 220: CURL_OPT(CURL_INT, NOBODY);
221: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 222:
223: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
224: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 225: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 226:
227: CURL_OPT(CURL_HEADERS, HTTPHEADER);
228: CURL_OPT(CURL_URLENCODE, COOKIE);
229: CURL_OPT(CURL_URLENCODE, COOKIELIST);
230: CURL_OPT(CURL_INT, COOKIESESSION);
231:
232: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
233: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
234: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
235:
1.4 misha 236: CURL_OPT(CURL_INT, MAXREDIRS);
237: CURL_OPT(CURL_INT, POSTREDIR);
238:
239: CURL_OPT(CURL_STRING, RANGE);
240:
1.1 misha 241: CURL_OPT(CURL_INT, TIMEOUT);
242: CURL_OPT(CURL_INT, TIMEOUT_MS);
243: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
244: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
245: CURL_OPT(CURL_INT, MAXCONNECTS);
246:
1.4 misha 247: CURL_OPT(CURL_STRING, PROXY);
248: CURL_OPT(CURL_INT, PROXYPORT);
249: CURL_OPT(CURL_INT, PROXYTYPE);
250: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
251: CURL_OPT(CURL_STRING, PROXYUSERPWD);
252: CURL_OPT(CURL_INT, PROXYAUTH);
253:
1.1 misha 254: CURL_OPT(CURL_INT, FRESH_CONNECT);
255: CURL_OPT(CURL_INT, FORBID_REUSE);
256: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
257: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 258: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 259:
260: CURL_OPT(CURL_FILE, SSLCERT);
261: CURL_OPT(CURL_STRING, SSLCERTTYPE);
262: CURL_OPT(CURL_FILE, SSLKEY);
263: CURL_OPT(CURL_STRING, SSLKEYTYPE);
264: CURL_OPT(CURL_STRING, KEYPASSWD);
265: CURL_OPT(CURL_STRING, SSLENGINE);
266: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
267:
268: CURL_OPT(CURL_FILE, ISSUERCERT);
269: CURL_OPT(CURL_FILE, CRLFILE);
270:
271: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 272: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 273: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
274: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
275: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
276: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
277:
278: PARSER_OPT(PARSER_LIBRARY, "library");
279: PARSER_OPT(PARSER_NAME, "name");
280: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
281: PARSER_OPT(PARSER_MODE, "mode");
282: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 283: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 284: }
285:
286: } *curl_options=0;
287:
1.32 moko 288: class CurlInfo {
289: public:
290:
291: enum OptionType {
292: CURL_STRING,
293: CURL_INT,
294: CURL_DOUBLE
295: };
296:
297: CURLINFO id;
298: OptionType type;
299: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
300: };
301:
302: class CurlInfoHash: public HashString<CurlInfo*> {
303: public:
304: CurlInfoHash() {
305: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
306: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
307: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
308: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
309: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
310: CURL_INF(CURL_STRING, CONTENT_TYPE);
311: CURL_INF(CURL_STRING, EFFECTIVE_URL);
312: CURL_INF(CURL_INT, HEADER_SIZE);
313: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
314: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
315: CURL_INF(CURL_INT, NUM_CONNECTS);
316: CURL_INF(CURL_INT, OS_ERRNO);
317: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
318: CURL_INF(CURL_STRING, PRIMARY_IP);
319: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
320: CURL_INF(CURL_INT, REDIRECT_COUNT);
321: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
322: CURL_INF(CURL_STRING, REDIRECT_URL);
323: CURL_INF(CURL_INT, REQUEST_SIZE);
324: CURL_INF(CURL_INT, RESPONSE_CODE);
325: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
326: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
327: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
328: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
329: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
330: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
331: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
332: }
333:
334: } *curl_infos=0;
335:
1.1 misha 336: static const char *curl_urlencode(const String &s, Request& r){
337: if(options().charset){
338: Temp_client_charset temp(r.charsets, *options().charset);
339: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
340: } else
341: return s.untaint_cstr(String::L_URI);
342: }
343:
344: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
345: struct curl_slist *slist=NULL;
346:
347: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
348: String header =
1.10 moko 349: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 350: << ": "
1.10 moko 351: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 352:
353: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
354: }
355: return slist;
356: }
357:
1.4 misha 358: static const char* curl_transcode(const String &s, Request& r){
359: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
360: }
361:
362: static void curl_form(HashStringValue *value_hash, Request& r){
363: struct curl_httppost *f_last=0;
364: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
365: const char *key = curl_transcode(String(i.key().cstr()), r);
366: if(const String* svalue = i.value()->get_string()){
367: // string
368: f_curl_formadd(&options().f_post, &f_last,
369: CURLFORM_PTRNAME, key,
370: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
371: CURLFORM_END);
372: } else if(Table* tvalue = i.value()->get_table()){
373: // table
374: for(size_t t = 0; t < tvalue->count(); t++) {
375: f_curl_formadd(&options().f_post, &f_last,
376: CURLFORM_PTRNAME, key,
377: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
378: CURLFORM_END);
379: }
380: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
381: // file
382: f_curl_formadd(&options().f_post, &f_last,
383: CURLFORM_PTRNAME, key,
384: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
385: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
386: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
387: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
388: CURLFORM_END);
389: } else {
390: 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());
391: }
392: }
393: }
394:
1.18 moko 395: static const char *curl_check_file(const String &file_spec){
396: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
397: struct stat finfo;
398: if(stat(file_spec_cstr, &finfo)==0)
399: check_safe_mode(finfo, file_spec, file_spec_cstr);
400: return file_spec_cstr;
401: }
402:
1.1 misha 403: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
404: CurlOption *opt=curl_options->get(key);
405:
406: if(opt==0)
407: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
408:
409: CURLcode res = CURLE_OK;
410: Value &v=r.process_to_value(*value);
411:
412: switch (opt->type){
413: case CurlOption::CURL_STRING:{
414: // string curl option
415: const char *value_str=v.as_string().cstr();
416: res=f_curl_easy_setopt(curl(), opt->id, value_str);
417: break;
418: }
419: case CurlOption::CURL_URLENCODE:{
420: // url-encoded string curl option
421: const char *value_str=curl_urlencode(v.as_string(), r);
422: res=f_curl_easy_setopt(curl(), opt->id, value_str);
423: break;
424: }
1.4 misha 425: case CurlOption::CURL_URL:{
426: // url-encoded string curl_url option
1.5 misha 427: const String url = v.as_string();
428: if(!url.starts_with("http://") && !url.starts_with("https://"))
429: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.4 misha 430: const char *value_str=curl_urlencode(url, r);
431: res=f_curl_easy_setopt(curl(), opt->id, value_str);
432: break;
433: }
1.1 misha 434: case CurlOption::CURL_INT:{
1.2 misha 435: // integer curl option
436: long value_int=(long)v.as_double();
1.1 misha 437: res=f_curl_easy_setopt(curl(), opt->id, value_int);
438: break;
439: }
440: case CurlOption::CURL_POST:{
441: // http post curl option
442: if(v.get_string()){
1.2 misha 443: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 444: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
445: } else {
446: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 447: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 448: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
449: }
450: break;
451: }
1.4 misha 452: case CurlOption::CURL_FORM:{
453: HashStringValue *value_hash = v.get_hash();
454: if(value_hash){
455: curl_form(value_hash, r);
1.5 misha 456: } else if(v.get_string()->is_empty()){
1.4 misha 457: f_curl_formfree(options().f_post);
458: options().f_post = 0;
459: } else {
1.16 moko 460: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 461: }
1.4 misha 462: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
463: break;
464: }
1.1 misha 465: case CurlOption::CURL_HEADERS:{
466: // http headers curl option
467: HashStringValue *value_hash=v.get_hash();
468: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
469: break;
470: }
471: case CurlOption::CURL_FILE:{
472: // file-spec curl option
1.18 moko 473: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
474: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 475: break;
476: }
1.16 moko 477: case CurlOption::CURL_STDERR:{
478: // verbose output redirection from stderr to file curl option
1.18 moko 479: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 480: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
481: if (f_stderr){
482: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 483: } else {
1.18 moko 484: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 485: }
486: break;
487: }
1.1 misha 488: case CurlOption::PARSER_LIBRARY:{
489: // 'library' parser option
490: if(fcurl==0){
491: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
492: } else
1.16 moko 493: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 494: break;
495: }
496: case CurlOption::PARSER_NAME:{
497: // 'name' parser option
1.12 misha 498: options().filename=&v.as_string();
1.1 misha 499: break;
500: }
501: case CurlOption::PARSER_CONTENT_TYPE:{
502: // 'content-type' parser option
503: options().content_type=&v.as_string();
504: break;
505: }
506: case CurlOption::PARSER_MODE:{
507: // 'mode' parser option
1.12 misha 508: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 509: break;
510: }
511: case CurlOption::PARSER_CHARSET:{
1.30 moko 512: // 'charset' parser option should be processed before other options
1.1 misha 513: break;
514: }
1.4 misha 515: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 516: // 'response-charset' parser option
1.4 misha 517: options().response_charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
518: break;
519: }
1.1 misha 520: }
521:
522: if(res != CURLE_OK)
523: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
524: }
525:
1.3 misha 526: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 527: if(curl_options==0)
528: curl_options=new CurlOptionHash();
529:
1.30 moko 530: if(HashStringValue* options_hash=params.as_hash(0)){
531: if(Value* value=options_hash->get("charset")){
532: // charset should be handled first as params may require transcode
533: Value &v=r.process_to_value(*value);
534: options().charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
535: }
536: options_hash->for_each<Request&>(curl_setopt, r);
537: }
1.1 misha 538: }
539:
1.32 moko 540: #define CURL_GETINFO(arg) \
541: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
542: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
543: }
544:
1.34 moko 545: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
546: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 547: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
548:
549: CURLcode res;
550: switch (info->type){
551: case CurlInfo::CURL_STRING:{
552: char *str=0;
553: CURL_GETINFO(str);
1.33 moko 554: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 555: }
556: case CurlInfo::CURL_INT:{
557: long l=0;
558: CURL_GETINFO(l);
559: return new VInt(l);
560: }
561: case CurlInfo::CURL_DOUBLE:{
562: double d=0;
563: CURL_GETINFO(d);
564: return new VDouble(d);
565: }
566: }
567: return VVoid::get();
568: }
569:
570: static void _curl_info(Request& r, MethodParams& params){
571: if(curl_infos==0)
572: curl_infos=new CurlInfoHash();
573: if(params.count()==1){
574: const String &name=params.as_string(0, "name must be string");
575: r.write_assign_lang(*curl_getinfo(name));
576: } else {
577: VHash& result=*new VHash;
578: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 579: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 580: }
581: r.write_no_lang(result);
582: }
583: }
584:
1.1 misha 585:
586: class Curl_buffer{
587: public:
588: char *buf;
589: size_t length;
590: size_t buf_size;
591:
592: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
593: };
594:
595: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
596: if(result == 0)
597: return 0;
598:
599: size=size*nmemb;
600: if(size>0){
601: if(result->length + size >= result->buf_size){
602: result->buf_size = result->buf_size*2 + size;
603: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
604: }
605: memcpy(result->buf+result->length, data, size);
606: result->length += size;
607: }
608: return size;
609: }
610:
1.38 ! moko 611: static int curl_header(char *data, size_t size, size_t nmemb, ResponseHeaders *result){
1.1 misha 612: if(result == 0)
613: return 0;
614:
615: size=size*nmemb;
616: if(size>0){
1.38 ! moko 617: result->add_header(pa_strdup(data, size));
1.1 misha 618: }
619: return size;
620: }
621:
622: #define CURL_SETOPT(option, arg, message) \
623: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
624: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
625: }
626:
627: static void _curl_load_action(Request& r, MethodParams& params){
628: if(params.count()==1)
1.3 misha 629: _curl_options(r, params);
1.1 misha 630:
631: CURLcode res;
632:
633: Curl_buffer body;
634: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
635: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
636:
637: // we need a container for headers as VFile fields can be put only after VFile.set
1.38 ! moko 638: ResponseHeaders response;
1.1 misha 639: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 640: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 641:
642: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 643: const char *ex_type = 0;
1.4 misha 644: switch(res){
645: case CURLE_OPERATION_TIMEDOUT:
646: ex_type = "curl.timeout"; break;
647: case CURLE_COULDNT_RESOLVE_HOST:
648: ex_type = "curl.host"; break;
649: case CURLE_COULDNT_CONNECT:
650: ex_type = "curl.connect"; break;
651: case CURLE_HTTP_RETURNED_ERROR:
652: ex_type = "curl.status"; break;
653: case CURLE_SSL_CONNECT_ERROR:
654: case CURLE_SSL_CERTPROBLEM:
655: case CURLE_SSL_CIPHER:
656: case CURLE_SSL_CACERT:
657: case CURLE_SSL_ENGINE_INITFAILED:
658: ex_type = "curl.ssl"; break;
1.31 moko 659: default: break;
1.4 misha 660: }
1.38 ! moko 661: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), 0, "%s", f_curl_easy_strerror(res));
1.1 misha 662: }
663:
664: // assure trailing zero
665: body.buf[body.length]=0;
666:
1.4 misha 667: VFile& result=*new VFile;
668:
1.8 moko 669: Charset *asked_charset = options().response_charset;
1.38 ! moko 670: if (!asked_charset && !response.content_type.is_empty())
! 671: asked_charset=detect_charset(response.content_type.cstr());
! 672:
! 673: if(options().is_text)
! 674: asked_charset=charsets.checkBOM(body.buf, body.length, asked_charset);
! 675:
! 676: if (!asked_charset)
! 677: asked_charset = options().charset;
1.1 misha 678:
679: if(options().is_text && asked_charset != 0){
680: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
681: body.buf=(char *)c.str;
682: body.length=c.length;
683: }
684:
1.38 ! moko 685: const String *content_type = PA_DEFAULT(options().content_type, response.content_type.is_empty() ? 0 : new String(response.content_type, String::L_TAINTED));
! 686:
! 687: result.set(true/*tainted*/, options().is_text, body.buf, body.length, options().filename, content_type ? new VString(*content_type) : 0, &r);
! 688:
1.4 misha 689: long http_status = 0;
690: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
691: result.fields().put("status", new VInt(http_status));
692: }
693:
1.38 ! moko 694: VHash* vtables=new VHash;
! 695: result.fields().put("tables", vtables);
1.23 misha 696:
1.38 ! moko 697: for(Array_iterator<ResponseHeaders::Header> i(response.headers); i.has_next(); ){
! 698: ResponseHeaders::Header header=i.next();
1.24 misha 699:
700: if(asked_charset)
1.38 ! moko 701: header.transcode(*asked_charset, r.charsets.source());
! 702:
! 703: String &header_value=*new String(header.value, String::L_TAINTED);
! 704:
! 705: tables_update(vtables->hash(), header.name, header_value);
! 706: result.fields().put(header.name, new VString(header_value));
1.1 misha 707: }
708:
1.38 ! moko 709: // filling $.cookies
! 710: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
! 711: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 712:
1.1 misha 713: r.write_no_lang(result);
714: }
715:
716: static void _curl_load(Request& r, MethodParams& params){
717: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
718: }
719:
720: // constructor
721: MCurl::MCurl(): Methoded("curl") {
722: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 723: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 724: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 725: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 726: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 727: }
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