Annotation of parser3/src/classes/curl.C, revision 1.35
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:
1.35 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.34 2015/10/11 00:06:57 moko Exp $";
1.13 moko 21:
1.1 misha 22: class MCurl: public Methoded {
23: public:
24: MCurl();
25: };
26:
27: // global variables
28:
29: DECLARE_CLASS_VAR(curl, new MCurl, 0);
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: static char *str_lower(const char *str){
162: char *result=pa_strdup(str);
163: for(char* c=result; *c; c++)
164: *c=(char)tolower((unsigned char)*c);
165: return result;
166: }
167:
168: static char *str_upper(const char *str){
169: char *result=pa_strdup(str);
170: for(char* c=result; *c; c++)
171: *c=(char)toupper((unsigned char)*c);
172: return result;
173: }
174:
175: class CurlOption {
176: public:
177:
178: enum OptionType {
179: CURL_STRING,
180: CURL_URLENCODE, // url-encoded string
1.4 misha 181: CURL_URL,
1.1 misha 182: CURL_INT,
183: CURL_POST,
1.4 misha 184: CURL_FORM,
1.1 misha 185: CURL_HEADERS,
186: CURL_FILE,
1.15 moko 187: CURL_STDERR,
1.1 misha 188: PARSER_LIBRARY,
189: PARSER_NAME,
190: PARSER_CONTENT_TYPE,
191: PARSER_MODE,
1.4 misha 192: PARSER_CHARSET,
193: PARSER_RESPONSE_CHARSET
1.1 misha 194: };
195:
196: CURLoption id;
197: OptionType type;
198: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
199: };
200:
201: class CurlOptionHash: public HashString<CurlOption*> {
202: public:
203: CurlOptionHash() {
204: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
205: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 206: CURL_OPT(CURL_URL, URL);
1.1 misha 207: CURL_OPT(CURL_STRING, INTERFACE);
208: CURL_OPT(CURL_INT, LOCALPORT);
209: CURL_OPT(CURL_INT, PORT);
1.4 misha 210:
1.15 moko 211: CURL_OPT(CURL_INT, VERBOSE);
212: CURL_OPT(CURL_STDERR, STDERR);
213: CURL_OPT(CURL_INT, MAXFILESIZE);
214:
1.1 misha 215: CURL_OPT(CURL_INT, HTTPAUTH);
216: CURL_OPT(CURL_STRING, USERPWD);
217:
218: CURL_OPT(CURL_STRING, USERNAME);
219: CURL_OPT(CURL_STRING, PASSWORD);
220:
1.4 misha 221: CURL_OPT(CURL_URLENCODE, USERAGENT);
222: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 223: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 224:
1.1 misha 225: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 226: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
227:
1.1 misha 228: CURL_OPT(CURL_INT, FOLLOWLOCATION);
229: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 230: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 231:
232: CURL_OPT(CURL_INT, POST);
233: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 234: CURL_OPT(CURL_INT, NOBODY);
235: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 236:
237: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
238: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 239: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 240:
241: CURL_OPT(CURL_HEADERS, HTTPHEADER);
242: CURL_OPT(CURL_URLENCODE, COOKIE);
243: CURL_OPT(CURL_URLENCODE, COOKIELIST);
244: CURL_OPT(CURL_INT, COOKIESESSION);
245:
246: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
247: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
248: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
249:
1.4 misha 250: CURL_OPT(CURL_INT, MAXREDIRS);
251: CURL_OPT(CURL_INT, POSTREDIR);
252:
253: CURL_OPT(CURL_STRING, RANGE);
254:
1.1 misha 255: CURL_OPT(CURL_INT, TIMEOUT);
256: CURL_OPT(CURL_INT, TIMEOUT_MS);
257: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
258: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
259: CURL_OPT(CURL_INT, MAXCONNECTS);
260:
1.4 misha 261: CURL_OPT(CURL_STRING, PROXY);
262: CURL_OPT(CURL_INT, PROXYPORT);
263: CURL_OPT(CURL_INT, PROXYTYPE);
264: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
265: CURL_OPT(CURL_STRING, PROXYUSERPWD);
266: CURL_OPT(CURL_INT, PROXYAUTH);
267:
1.1 misha 268: CURL_OPT(CURL_INT, FRESH_CONNECT);
269: CURL_OPT(CURL_INT, FORBID_REUSE);
270: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
271: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 272: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 273:
274: CURL_OPT(CURL_FILE, SSLCERT);
275: CURL_OPT(CURL_STRING, SSLCERTTYPE);
276: CURL_OPT(CURL_FILE, SSLKEY);
277: CURL_OPT(CURL_STRING, SSLKEYTYPE);
278: CURL_OPT(CURL_STRING, KEYPASSWD);
279: CURL_OPT(CURL_STRING, SSLENGINE);
280: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
281:
282: CURL_OPT(CURL_FILE, ISSUERCERT);
283: CURL_OPT(CURL_FILE, CRLFILE);
284:
285: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 286: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 287: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
288: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
289: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
290: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
291:
292: PARSER_OPT(PARSER_LIBRARY, "library");
293: PARSER_OPT(PARSER_NAME, "name");
294: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
295: PARSER_OPT(PARSER_MODE, "mode");
296: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 297: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 298: }
299:
300: } *curl_options=0;
301:
1.32 moko 302: class CurlInfo {
303: public:
304:
305: enum OptionType {
306: CURL_STRING,
307: CURL_INT,
308: CURL_DOUBLE
309: };
310:
311: CURLINFO id;
312: OptionType type;
313: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
314: };
315:
316: class CurlInfoHash: public HashString<CurlInfo*> {
317: public:
318: CurlInfoHash() {
319: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
320: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
321: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
322: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
323: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
324: CURL_INF(CURL_STRING, CONTENT_TYPE);
325: CURL_INF(CURL_STRING, EFFECTIVE_URL);
326: CURL_INF(CURL_INT, HEADER_SIZE);
327: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
328: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
329: CURL_INF(CURL_INT, NUM_CONNECTS);
330: CURL_INF(CURL_INT, OS_ERRNO);
331: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
332: CURL_INF(CURL_STRING, PRIMARY_IP);
333: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
334: CURL_INF(CURL_INT, REDIRECT_COUNT);
335: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
336: CURL_INF(CURL_STRING, REDIRECT_URL);
337: CURL_INF(CURL_INT, REQUEST_SIZE);
338: CURL_INF(CURL_INT, RESPONSE_CODE);
339: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
340: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
341: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
342: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
343: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
344: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
345: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
346: }
347:
348: } *curl_infos=0;
349:
1.1 misha 350: static const char *curl_urlencode(const String &s, Request& r){
351: if(options().charset){
352: Temp_client_charset temp(r.charsets, *options().charset);
353: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
354: } else
355: return s.untaint_cstr(String::L_URI);
356: }
357:
358: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
359: struct curl_slist *slist=NULL;
360:
361: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
362: String header =
1.10 moko 363: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 364: << ": "
1.10 moko 365: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 366:
367: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
368: }
369: return slist;
370: }
371:
1.4 misha 372: static const char* curl_transcode(const String &s, Request& r){
373: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
374: }
375:
376: static void curl_form(HashStringValue *value_hash, Request& r){
377: struct curl_httppost *f_last=0;
378: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
379: const char *key = curl_transcode(String(i.key().cstr()), r);
380: if(const String* svalue = i.value()->get_string()){
381: // string
382: f_curl_formadd(&options().f_post, &f_last,
383: CURLFORM_PTRNAME, key,
384: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
385: CURLFORM_END);
386: } else if(Table* tvalue = i.value()->get_table()){
387: // table
388: for(size_t t = 0; t < tvalue->count(); t++) {
389: f_curl_formadd(&options().f_post, &f_last,
390: CURLFORM_PTRNAME, key,
391: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
392: CURLFORM_END);
393: }
394: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
395: // file
396: f_curl_formadd(&options().f_post, &f_last,
397: CURLFORM_PTRNAME, key,
398: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
399: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
400: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
401: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
402: CURLFORM_END);
403: } else {
404: 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());
405: }
406: }
407: }
408:
1.18 moko 409: static const char *curl_check_file(const String &file_spec){
410: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
411: struct stat finfo;
412: if(stat(file_spec_cstr, &finfo)==0)
413: check_safe_mode(finfo, file_spec, file_spec_cstr);
414: return file_spec_cstr;
415: }
416:
1.1 misha 417: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
418: CurlOption *opt=curl_options->get(key);
419:
420: if(opt==0)
421: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
422:
423: CURLcode res = CURLE_OK;
424: Value &v=r.process_to_value(*value);
425:
426: switch (opt->type){
427: case CurlOption::CURL_STRING:{
428: // string curl option
429: const char *value_str=v.as_string().cstr();
430: res=f_curl_easy_setopt(curl(), opt->id, value_str);
431: break;
432: }
433: case CurlOption::CURL_URLENCODE:{
434: // url-encoded string curl option
435: const char *value_str=curl_urlencode(v.as_string(), r);
436: res=f_curl_easy_setopt(curl(), opt->id, value_str);
437: break;
438: }
1.4 misha 439: case CurlOption::CURL_URL:{
440: // url-encoded string curl_url option
1.5 misha 441: const String url = v.as_string();
442: if(!url.starts_with("http://") && !url.starts_with("https://"))
443: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.4 misha 444: const char *value_str=curl_urlencode(url, r);
445: res=f_curl_easy_setopt(curl(), opt->id, value_str);
446: break;
447: }
1.1 misha 448: case CurlOption::CURL_INT:{
1.2 misha 449: // integer curl option
450: long value_int=(long)v.as_double();
1.1 misha 451: res=f_curl_easy_setopt(curl(), opt->id, value_int);
452: break;
453: }
454: case CurlOption::CURL_POST:{
455: // http post curl option
456: if(v.get_string()){
1.2 misha 457: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 458: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
459: } else {
460: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 461: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 462: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
463: }
464: break;
465: }
1.4 misha 466: case CurlOption::CURL_FORM:{
467: HashStringValue *value_hash = v.get_hash();
468: if(value_hash){
469: curl_form(value_hash, r);
1.5 misha 470: } else if(v.get_string()->is_empty()){
1.4 misha 471: f_curl_formfree(options().f_post);
472: options().f_post = 0;
473: } else {
1.16 moko 474: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 475: }
1.4 misha 476: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
477: break;
478: }
1.1 misha 479: case CurlOption::CURL_HEADERS:{
480: // http headers curl option
481: HashStringValue *value_hash=v.get_hash();
482: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
483: break;
484: }
485: case CurlOption::CURL_FILE:{
486: // file-spec curl option
1.18 moko 487: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
488: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 489: break;
490: }
1.16 moko 491: case CurlOption::CURL_STDERR:{
492: // verbose output redirection from stderr to file curl option
1.18 moko 493: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 494: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
495: if (f_stderr){
496: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 497: } else {
1.18 moko 498: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 499: }
500: break;
501: }
1.1 misha 502: case CurlOption::PARSER_LIBRARY:{
503: // 'library' parser option
504: if(fcurl==0){
505: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
506: } else
1.16 moko 507: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 508: break;
509: }
510: case CurlOption::PARSER_NAME:{
511: // 'name' parser option
1.12 misha 512: options().filename=&v.as_string();
1.1 misha 513: break;
514: }
515: case CurlOption::PARSER_CONTENT_TYPE:{
516: // 'content-type' parser option
517: options().content_type=&v.as_string();
518: break;
519: }
520: case CurlOption::PARSER_MODE:{
521: // 'mode' parser option
1.12 misha 522: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 523: break;
524: }
525: case CurlOption::PARSER_CHARSET:{
1.30 moko 526: // 'charset' parser option should be processed before other options
1.1 misha 527: break;
528: }
1.4 misha 529: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 530: // 'response-charset' parser option
1.4 misha 531: options().response_charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
532: break;
533: }
1.1 misha 534: }
535:
536: if(res != CURLE_OK)
537: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
538: }
539:
1.3 misha 540: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 541: if(curl_options==0)
542: curl_options=new CurlOptionHash();
543:
1.30 moko 544: if(HashStringValue* options_hash=params.as_hash(0)){
545: if(Value* value=options_hash->get("charset")){
546: // charset should be handled first as params may require transcode
547: Value &v=r.process_to_value(*value);
548: options().charset=&::charsets.get(v.as_string().change_case(r.charsets.source(), String::CC_UPPER));
549: }
550: options_hash->for_each<Request&>(curl_setopt, r);
551: }
1.1 misha 552: }
553:
1.32 moko 554: #define CURL_GETINFO(arg) \
555: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
556: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
557: }
558:
1.34 moko 559: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
560: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 561: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
562:
563: CURLcode res;
564: switch (info->type){
565: case CurlInfo::CURL_STRING:{
566: char *str=0;
567: CURL_GETINFO(str);
1.33 moko 568: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 569: }
570: case CurlInfo::CURL_INT:{
571: long l=0;
572: CURL_GETINFO(l);
573: return new VInt(l);
574: }
575: case CurlInfo::CURL_DOUBLE:{
576: double d=0;
577: CURL_GETINFO(d);
578: return new VDouble(d);
579: }
580: }
581: return VVoid::get();
582: }
583:
584: static void _curl_info(Request& r, MethodParams& params){
585: if(curl_infos==0)
586: curl_infos=new CurlInfoHash();
587: if(params.count()==1){
588: const String &name=params.as_string(0, "name must be string");
589: r.write_assign_lang(*curl_getinfo(name));
590: } else {
591: VHash& result=*new VHash;
592: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 593: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 594: }
595: r.write_no_lang(result);
596: }
597: }
598:
1.1 misha 599:
600: class Curl_buffer{
601: public:
602: char *buf;
603: size_t length;
604: size_t buf_size;
605:
606: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
607: };
608:
609: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
610: if(result == 0)
611: return 0;
612:
613: size=size*nmemb;
614: if(size>0){
615: if(result->length + size >= result->buf_size){
616: result->buf_size = result->buf_size*2 + size;
617: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
618: }
619: memcpy(result->buf+result->length, data, size);
620: result->length += size;
621: }
622: return size;
623: }
624:
1.24 misha 625: class Curl_response {
626: public:
627: HASH_STRING<char*> headers;
628: Array<char*> cookies;
629: };
630:
631: static int curl_header(char *data, size_t size, size_t nmemb, Curl_response *result){
1.1 misha 632: if(result == 0)
633: return 0;
634:
635: size=size*nmemb;
636: if(size>0){
637: char *line=pa_strdup(data, size);
638: char *value=lsplit(line,':');
639: if(value && *line){
640: // we need only headers, not the response code
1.24 misha 641: const char* HEADER_NAME=str_upper(line);
642: result->headers.put(HEADER_NAME, value);
643: if(strcmp(HEADER_NAME, "SET-COOKIE")==0)
644: result->cookies+=value;
1.1 misha 645: }
646: }
647: return size;
648: }
649:
650: #define CURL_SETOPT(option, arg, message) \
651: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
652: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
653: }
654:
655: static void _curl_load_action(Request& r, MethodParams& params){
656: if(params.count()==1)
1.3 misha 657: _curl_options(r, params);
1.1 misha 658:
659: CURLcode res;
660:
661: Curl_buffer body;
662: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
663: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
664:
665: // we need a container for headers as VFile fields can be put only after VFile.set
1.24 misha 666: Curl_response response;
1.1 misha 667: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 668: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 669:
670: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 671: const char *ex_type = 0;
1.4 misha 672: switch(res){
673: case CURLE_OPERATION_TIMEDOUT:
674: ex_type = "curl.timeout"; break;
675: case CURLE_COULDNT_RESOLVE_HOST:
676: ex_type = "curl.host"; break;
677: case CURLE_COULDNT_CONNECT:
678: ex_type = "curl.connect"; break;
679: case CURLE_HTTP_RETURNED_ERROR:
680: ex_type = "curl.status"; break;
681: case CURLE_SSL_CONNECT_ERROR:
682: case CURLE_SSL_CERTPROBLEM:
683: case CURLE_SSL_CIPHER:
684: case CURLE_SSL_CACERT:
685: case CURLE_SSL_ENGINE_INITFAILED:
686: ex_type = "curl.ssl"; break;
1.31 moko 687: default: break;
1.4 misha 688: }
689: throw Exception( ex_type ? ex_type : "curl.fail", 0, "%s", f_curl_easy_strerror(res));
1.1 misha 690: }
691:
692: // assure trailing zero
693: body.buf[body.length]=0;
694:
1.4 misha 695: VFile& result=*new VFile;
696:
1.24 misha 697: String::Body ct_header = response.headers.get(HTTP_CONTENT_TYPE_UPPER);
1.8 moko 698: Charset *asked_charset = options().response_charset;
699: if (asked_charset == 0){
700: Charset *remote_charset = ct_header.is_empty() ? 0 : detect_charset(ct_header.trim(String::TRIM_BOTH, " \t\n\r").cstr());
701: asked_charset = remote_charset ? remote_charset : options().charset;
702: }
1.1 misha 703:
704: if(options().is_text && asked_charset != 0){
705: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
706: body.buf=(char *)c.str;
707: body.length=c.length;
708: }
709:
1.21 misha 710: result.set(true/*tainted*/, options().is_text, body.buf, body.length, options().filename
1.22 moko 711: , options().content_type ? new VString(*options().content_type) : 0, &r);
1.4 misha 712: long http_status = 0;
713: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
714: result.fields().put("status", new VInt(http_status));
715: }
716:
1.24 misha 717: for(HASH_STRING<char *>::Iterator i(response.headers); i; i.next() ){
1.23 misha 718: String::Body HEADER_NAME=i.key();
1.1 misha 719: String::Body value=i.value();
720: if(asked_charset){
1.23 misha 721: HEADER_NAME=Charset::transcode(HEADER_NAME, *asked_charset, r.charsets.source());
1.1 misha 722: value=Charset::transcode(value, *asked_charset, r.charsets.source());
723: }
1.24 misha 724: result.fields().put(HEADER_NAME, new VString(*new String(value.trim(String::TRIM_BOTH, " \t\n\r"), String::L_TAINTED)));
725: }
1.23 misha 726:
1.24 misha 727: // filling $.cookies
728: Table* tcookies=0;
729:
730: for(Array_iterator<char*> i(response.cookies); i.has_next(); ){
731: if(!tcookies){
732: Table::columns_type columns=new ArrayString(1);
733: *columns+=new String("value");
734: tcookies=new Table(columns);
1.23 misha 735: }
1.24 misha 736: String::Body value=i.next();
737: if(asked_charset)
738: value=Charset::transcode(value, *asked_charset, r.charsets.source());
739: ArrayString& row=*new ArrayString(1);
740: row+=new String(value.trim(String::TRIM_BOTH, " \t\n\r"), String::L_TAINTED);
741: *tcookies+=&row;
1.1 misha 742: }
743:
1.24 misha 744: if(tcookies)
745: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, tcookies)));
1.23 misha 746:
1.1 misha 747: r.write_no_lang(result);
748: }
749:
750: static void _curl_load(Request& r, MethodParams& params){
751: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
752: }
753:
754: // constructor
755: MCurl::MCurl(): Methoded("curl") {
756: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 757: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 758: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 759: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 760: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 761: }
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