Annotation of parser3/src/classes/curl.C, revision 1.41
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:
1.41 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.40 2016/07/29 20:24:16 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:
1.39 moko 74: // real options
1.12 misha 75: const String *filename;
1.1 misha 76: const String *content_type;
77: bool is_text;
1.4 misha 78: Charset *charset, *response_charset;
1.39 moko 79:
80: // stuff for internal use
81: const char *url;
1.4 misha 82: struct curl_httppost *f_post;
1.19 moko 83: FILE *f_stderr;
1.1 misha 84:
1.39 moko 85: ParserOptions() : filename(0), content_type(0), is_text(true), charset(0), response_charset(0), url(0), f_post(0), f_stderr(0){}
1.4 misha 86: ~ParserOptions() {
87: f_curl_formfree(f_post);
1.19 moko 88: if(f_stderr)
89: fclose(f_stderr);
1.4 misha 90: }
91:
1.1 misha 92: };
93:
1.9 moko 94: // using TLS instead of keeping variables in request
95: THREAD_LOCAL CURL *fcurl = 0;
96: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 97:
98: static CURL *curl(){
99: if(!fcurl)
100: throw Exception("curl", 0, "outside of 'session' operator");
101: return fcurl;
102: }
103:
104: static ParserOptions &options(){
105: if(!foptions)
106: throw Exception("curl", 0, "outside of 'session' operator");
107: return *foptions;
108: }
109:
110: // using temporal object scheme to garanty cleanup call
111: class Temp_curl {
1.4 misha 112: CURL *saved_curl;
113: ParserOptions *saved_options;
1.1 misha 114: public:
1.4 misha 115: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.5 misha 116: fcurl = f_curl_easy_init();
117: foptions = new ParserOptions();
1.4 misha 118: f_curl_easy_setopt(fcurl, CURLOPT_POSTFIELDSIZE, 0); // fix libcurl bug
1.27 moko 119: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
1.1 misha 120: }
121: ~Temp_curl() {
122: f_curl_easy_cleanup(fcurl);
123: fcurl = saved_curl;
124: delete foptions;
125: foptions = saved_options;
126: }
127: };
128:
129: bool curl_linked = false;
1.41 ! moko 130: const char *curl_status = 0;
1.29 moko 131: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 132:
133: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
1.41 ! moko 134: if(!curl_linked)
1.1 misha 135: curl_status=dlink(curl_library);
136:
137: if(curl_status == 0){
1.41 ! moko 138: curl_linked=true;
1.1 misha 139: Temp_curl temp_curl;
140: action(r,params);
141: } else {
142: throw Exception("curl", 0, "failed to load curl library %s: %s", curl_library, curl_status);
143: }
144: }
145:
146: static void _curl_session_action(Request& r, MethodParams& params){
147: Value& body_code=params.as_junction(0, "body must be code");
148: r.process_write(body_code);
149: }
150:
151: static void _curl_session(Request& r, MethodParams& params){
152: temp_curl(_curl_session_action, r, params);
153: }
154:
1.5 misha 155: static void _curl_version_action(Request& r, MethodParams& ){
1.4 misha 156: r.write_no_lang(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
157: }
158:
159: static void _curl_version(Request& r, MethodParams& params){
160: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
161: }
1.1 misha 162:
163: class CurlOption {
164: public:
165:
166: enum OptionType {
167: CURL_STRING,
168: CURL_URLENCODE, // url-encoded string
1.4 misha 169: CURL_URL,
1.1 misha 170: CURL_INT,
171: CURL_POST,
1.4 misha 172: CURL_FORM,
1.1 misha 173: CURL_HEADERS,
174: CURL_FILE,
1.15 moko 175: CURL_STDERR,
1.1 misha 176: PARSER_LIBRARY,
177: PARSER_NAME,
178: PARSER_CONTENT_TYPE,
179: PARSER_MODE,
1.4 misha 180: PARSER_CHARSET,
181: PARSER_RESPONSE_CHARSET
1.1 misha 182: };
183:
184: CURLoption id;
185: OptionType type;
186: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
187: };
188:
189: class CurlOptionHash: public HashString<CurlOption*> {
190: public:
191: CurlOptionHash() {
192: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
193: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 194: CURL_OPT(CURL_URL, URL);
1.1 misha 195: CURL_OPT(CURL_STRING, INTERFACE);
196: CURL_OPT(CURL_INT, LOCALPORT);
197: CURL_OPT(CURL_INT, PORT);
1.4 misha 198:
1.15 moko 199: CURL_OPT(CURL_INT, VERBOSE);
200: CURL_OPT(CURL_STDERR, STDERR);
201: CURL_OPT(CURL_INT, MAXFILESIZE);
202:
1.1 misha 203: CURL_OPT(CURL_INT, HTTPAUTH);
204: CURL_OPT(CURL_STRING, USERPWD);
205:
206: CURL_OPT(CURL_STRING, USERNAME);
207: CURL_OPT(CURL_STRING, PASSWORD);
208:
1.4 misha 209: CURL_OPT(CURL_URLENCODE, USERAGENT);
210: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 211: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 212:
1.1 misha 213: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 214: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
215:
1.1 misha 216: CURL_OPT(CURL_INT, FOLLOWLOCATION);
217: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 218: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 219:
220: CURL_OPT(CURL_INT, POST);
221: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 222: CURL_OPT(CURL_INT, NOBODY);
223: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 224:
225: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
226: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 227: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 228:
229: CURL_OPT(CURL_HEADERS, HTTPHEADER);
230: CURL_OPT(CURL_URLENCODE, COOKIE);
231: CURL_OPT(CURL_URLENCODE, COOKIELIST);
232: CURL_OPT(CURL_INT, COOKIESESSION);
233:
234: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
235: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
236: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
237:
1.4 misha 238: CURL_OPT(CURL_INT, MAXREDIRS);
239: CURL_OPT(CURL_INT, POSTREDIR);
240:
241: CURL_OPT(CURL_STRING, RANGE);
242:
1.1 misha 243: CURL_OPT(CURL_INT, TIMEOUT);
244: CURL_OPT(CURL_INT, TIMEOUT_MS);
245: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
246: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
247: CURL_OPT(CURL_INT, MAXCONNECTS);
248:
1.4 misha 249: CURL_OPT(CURL_STRING, PROXY);
250: CURL_OPT(CURL_INT, PROXYPORT);
251: CURL_OPT(CURL_INT, PROXYTYPE);
252: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
253: CURL_OPT(CURL_STRING, PROXYUSERPWD);
254: CURL_OPT(CURL_INT, PROXYAUTH);
255:
1.1 misha 256: CURL_OPT(CURL_INT, FRESH_CONNECT);
257: CURL_OPT(CURL_INT, FORBID_REUSE);
258: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
259: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 260: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 261:
262: CURL_OPT(CURL_FILE, SSLCERT);
263: CURL_OPT(CURL_STRING, SSLCERTTYPE);
264: CURL_OPT(CURL_FILE, SSLKEY);
265: CURL_OPT(CURL_STRING, SSLKEYTYPE);
266: CURL_OPT(CURL_STRING, KEYPASSWD);
267: CURL_OPT(CURL_STRING, SSLENGINE);
268: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
269:
270: CURL_OPT(CURL_FILE, ISSUERCERT);
271: CURL_OPT(CURL_FILE, CRLFILE);
272:
273: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 274: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 275: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
276: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
277: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
278: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
279:
280: PARSER_OPT(PARSER_LIBRARY, "library");
281: PARSER_OPT(PARSER_NAME, "name");
282: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
283: PARSER_OPT(PARSER_MODE, "mode");
284: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 285: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 286: }
287:
288: } *curl_options=0;
289:
1.32 moko 290: class CurlInfo {
291: public:
292:
293: enum OptionType {
294: CURL_STRING,
295: CURL_INT,
296: CURL_DOUBLE
297: };
298:
299: CURLINFO id;
300: OptionType type;
301: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
302: };
303:
304: class CurlInfoHash: public HashString<CurlInfo*> {
305: public:
306: CurlInfoHash() {
307: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
308: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
309: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
310: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
311: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
312: CURL_INF(CURL_STRING, CONTENT_TYPE);
313: CURL_INF(CURL_STRING, EFFECTIVE_URL);
314: CURL_INF(CURL_INT, HEADER_SIZE);
315: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
316: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
317: CURL_INF(CURL_INT, NUM_CONNECTS);
318: CURL_INF(CURL_INT, OS_ERRNO);
319: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
320: CURL_INF(CURL_STRING, PRIMARY_IP);
321: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
322: CURL_INF(CURL_INT, REDIRECT_COUNT);
323: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
324: CURL_INF(CURL_STRING, REDIRECT_URL);
325: CURL_INF(CURL_INT, REQUEST_SIZE);
326: CURL_INF(CURL_INT, RESPONSE_CODE);
327: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
328: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
329: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
330: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
331: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
332: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
333: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
334: }
335:
336: } *curl_infos=0;
337:
1.1 misha 338: static const char *curl_urlencode(const String &s, Request& r){
339: if(options().charset){
340: Temp_client_charset temp(r.charsets, *options().charset);
341: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
342: } else
343: return s.untaint_cstr(String::L_URI);
344: }
345:
346: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
347: struct curl_slist *slist=NULL;
348:
349: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
350: String header =
1.10 moko 351: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 352: << ": "
1.10 moko 353: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 354:
355: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
356: }
357: return slist;
358: }
359:
1.4 misha 360: static const char* curl_transcode(const String &s, Request& r){
361: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
362: }
363:
364: static void curl_form(HashStringValue *value_hash, Request& r){
365: struct curl_httppost *f_last=0;
366: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
367: const char *key = curl_transcode(String(i.key().cstr()), r);
368: if(const String* svalue = i.value()->get_string()){
369: // string
370: f_curl_formadd(&options().f_post, &f_last,
371: CURLFORM_PTRNAME, key,
372: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
373: CURLFORM_END);
374: } else if(Table* tvalue = i.value()->get_table()){
375: // table
376: for(size_t t = 0; t < tvalue->count(); t++) {
377: f_curl_formadd(&options().f_post, &f_last,
378: CURLFORM_PTRNAME, key,
379: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
380: CURLFORM_END);
381: }
382: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
383: // file
384: f_curl_formadd(&options().f_post, &f_last,
385: CURLFORM_PTRNAME, key,
386: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
387: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
388: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
389: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
390: CURLFORM_END);
391: } else {
392: 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());
393: }
394: }
395: }
396:
1.18 moko 397: static const char *curl_check_file(const String &file_spec){
398: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
399: struct stat finfo;
400: if(stat(file_spec_cstr, &finfo)==0)
401: check_safe_mode(finfo, file_spec, file_spec_cstr);
402: return file_spec_cstr;
403: }
404:
1.1 misha 405: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
406: CurlOption *opt=curl_options->get(key);
407:
408: if(opt==0)
409: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
410:
411: CURLcode res = CURLE_OK;
412: Value &v=r.process_to_value(*value);
413:
414: switch (opt->type){
415: case CurlOption::CURL_STRING:{
416: // string curl option
417: const char *value_str=v.as_string().cstr();
418: res=f_curl_easy_setopt(curl(), opt->id, value_str);
419: break;
420: }
421: case CurlOption::CURL_URLENCODE:{
422: // url-encoded string curl option
423: const char *value_str=curl_urlencode(v.as_string(), r);
424: res=f_curl_easy_setopt(curl(), opt->id, value_str);
425: break;
426: }
1.4 misha 427: case CurlOption::CURL_URL:{
428: // url-encoded string curl_url option
1.5 misha 429: const String url = v.as_string();
430: if(!url.starts_with("http://") && !url.starts_with("https://"))
431: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 432: options().url=curl_urlencode(url, r);
433: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 434: break;
435: }
1.1 misha 436: case CurlOption::CURL_INT:{
1.2 misha 437: // integer curl option
438: long value_int=(long)v.as_double();
1.1 misha 439: res=f_curl_easy_setopt(curl(), opt->id, value_int);
440: break;
441: }
442: case CurlOption::CURL_POST:{
443: // http post curl option
444: if(v.get_string()){
1.2 misha 445: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 446: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
447: } else {
448: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 449: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 450: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
451: }
452: break;
453: }
1.4 misha 454: case CurlOption::CURL_FORM:{
455: HashStringValue *value_hash = v.get_hash();
456: if(value_hash){
457: curl_form(value_hash, r);
1.5 misha 458: } else if(v.get_string()->is_empty()){
1.4 misha 459: f_curl_formfree(options().f_post);
460: options().f_post = 0;
461: } else {
1.16 moko 462: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 463: }
1.4 misha 464: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
465: break;
466: }
1.1 misha 467: case CurlOption::CURL_HEADERS:{
468: // http headers curl option
469: HashStringValue *value_hash=v.get_hash();
470: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
471: break;
472: }
473: case CurlOption::CURL_FILE:{
474: // file-spec curl option
1.18 moko 475: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
476: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 477: break;
478: }
1.16 moko 479: case CurlOption::CURL_STDERR:{
480: // verbose output redirection from stderr to file curl option
1.18 moko 481: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 482: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
483: if (f_stderr){
484: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 485: } else {
1.18 moko 486: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 487: }
488: break;
489: }
1.1 misha 490: case CurlOption::PARSER_LIBRARY:{
491: // 'library' parser option
1.41 ! moko 492: if(!curl_linked){
1.1 misha 493: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
494: } else
1.16 moko 495: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 496: break;
497: }
498: case CurlOption::PARSER_NAME:{
499: // 'name' parser option
1.12 misha 500: options().filename=&v.as_string();
1.1 misha 501: break;
502: }
503: case CurlOption::PARSER_CONTENT_TYPE:{
504: // 'content-type' parser option
505: options().content_type=&v.as_string();
506: break;
507: }
508: case CurlOption::PARSER_MODE:{
509: // 'mode' parser option
1.12 misha 510: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 511: break;
512: }
513: case CurlOption::PARSER_CHARSET:{
1.30 moko 514: // 'charset' parser option should be processed before other options
1.1 misha 515: break;
516: }
1.4 misha 517: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 518: // 'response-charset' parser option
1.40 moko 519: options().response_charset=&::charsets.get(v.as_string());
1.4 misha 520: break;
521: }
1.1 misha 522: }
523:
524: if(res != CURLE_OK)
525: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
526: }
527:
1.3 misha 528: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 529: if(curl_options==0)
530: curl_options=new CurlOptionHash();
531:
1.30 moko 532: if(HashStringValue* options_hash=params.as_hash(0)){
533: if(Value* value=options_hash->get("charset")){
534: // charset should be handled first as params may require transcode
535: Value &v=r.process_to_value(*value);
1.40 moko 536: options().charset=&::charsets.get(v.as_string());
1.30 moko 537: }
538: options_hash->for_each<Request&>(curl_setopt, r);
539: }
1.1 misha 540: }
541:
1.32 moko 542: #define CURL_GETINFO(arg) \
543: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
544: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
545: }
546:
1.34 moko 547: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
548: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 549: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
550:
551: CURLcode res;
552: switch (info->type){
553: case CurlInfo::CURL_STRING:{
554: char *str=0;
555: CURL_GETINFO(str);
1.33 moko 556: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 557: }
558: case CurlInfo::CURL_INT:{
559: long l=0;
560: CURL_GETINFO(l);
561: return new VInt(l);
562: }
563: case CurlInfo::CURL_DOUBLE:{
564: double d=0;
565: CURL_GETINFO(d);
566: return new VDouble(d);
567: }
568: }
569: return VVoid::get();
570: }
571:
572: static void _curl_info(Request& r, MethodParams& params){
573: if(curl_infos==0)
574: curl_infos=new CurlInfoHash();
575: if(params.count()==1){
576: const String &name=params.as_string(0, "name must be string");
577: r.write_assign_lang(*curl_getinfo(name));
578: } else {
579: VHash& result=*new VHash;
580: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 581: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 582: }
583: r.write_no_lang(result);
584: }
585: }
586:
1.1 misha 587:
588: class Curl_buffer{
589: public:
590: char *buf;
591: size_t length;
592: size_t buf_size;
593:
594: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
595: };
596:
597: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
598: if(result == 0)
599: return 0;
600:
601: size=size*nmemb;
602: if(size>0){
603: if(result->length + size >= result->buf_size){
604: result->buf_size = result->buf_size*2 + size;
605: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
606: }
607: memcpy(result->buf+result->length, data, size);
608: result->length += size;
609: }
610: return size;
611: }
612:
1.38 moko 613: static int curl_header(char *data, size_t size, size_t nmemb, ResponseHeaders *result){
1.1 misha 614: if(result == 0)
615: return 0;
616:
617: size=size*nmemb;
618: if(size>0){
1.38 moko 619: result->add_header(pa_strdup(data, size));
1.1 misha 620: }
621: return size;
622: }
623:
624: #define CURL_SETOPT(option, arg, message) \
625: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
626: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
627: }
628:
629: static void _curl_load_action(Request& r, MethodParams& params){
630: if(params.count()==1)
1.3 misha 631: _curl_options(r, params);
1.1 misha 632:
633: CURLcode res;
634:
635: Curl_buffer body;
636: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
637: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
638:
639: // we need a container for headers as VFile fields can be put only after VFile.set
1.38 moko 640: ResponseHeaders response;
1.1 misha 641: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 642: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 643:
644: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 645: const char *ex_type = 0;
1.4 misha 646: switch(res){
647: case CURLE_OPERATION_TIMEDOUT:
648: ex_type = "curl.timeout"; break;
649: case CURLE_COULDNT_RESOLVE_HOST:
650: ex_type = "curl.host"; break;
651: case CURLE_COULDNT_CONNECT:
652: ex_type = "curl.connect"; break;
653: case CURLE_HTTP_RETURNED_ERROR:
654: ex_type = "curl.status"; break;
655: case CURLE_SSL_CONNECT_ERROR:
656: case CURLE_SSL_CERTPROBLEM:
657: case CURLE_SSL_CIPHER:
658: case CURLE_SSL_CACERT:
659: case CURLE_SSL_ENGINE_INITFAILED:
660: ex_type = "curl.ssl"; break;
1.31 moko 661: default: break;
1.4 misha 662: }
1.38 moko 663: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), 0, "%s", f_curl_easy_strerror(res));
1.1 misha 664: }
665:
666: // assure trailing zero
667: body.buf[body.length]=0;
668:
1.4 misha 669: VFile& result=*new VFile;
670:
1.8 moko 671: Charset *asked_charset = options().response_charset;
1.38 moko 672: if (!asked_charset && !response.content_type.is_empty())
673: asked_charset=detect_charset(response.content_type.cstr());
674:
675: if(options().is_text)
676: asked_charset=charsets.checkBOM(body.buf, body.length, asked_charset);
677:
678: if (!asked_charset)
679: asked_charset = options().charset;
1.1 misha 680:
681: if(options().is_text && asked_charset != 0){
682: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
683: body.buf=(char *)c.str;
684: body.length=c.length;
685: }
686:
1.38 moko 687: const String *content_type = PA_DEFAULT(options().content_type, response.content_type.is_empty() ? 0 : new String(response.content_type, String::L_TAINTED));
1.39 moko 688: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 689:
1.39 moko 690: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 691:
1.4 misha 692: long http_status = 0;
693: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
694: result.fields().put("status", new VInt(http_status));
695: }
696:
1.38 moko 697: VHash* vtables=new VHash;
698: result.fields().put("tables", vtables);
1.23 misha 699:
1.38 moko 700: for(Array_iterator<ResponseHeaders::Header> i(response.headers); i.has_next(); ){
701: ResponseHeaders::Header header=i.next();
1.24 misha 702:
703: if(asked_charset)
1.38 moko 704: header.transcode(*asked_charset, r.charsets.source());
705:
706: String &header_value=*new String(header.value, String::L_TAINTED);
707:
708: tables_update(vtables->hash(), header.name, header_value);
709: result.fields().put(header.name, new VString(header_value));
1.1 misha 710: }
711:
1.38 moko 712: // filling $.cookies
713: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
714: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 715:
1.1 misha 716: r.write_no_lang(result);
717: }
718:
719: static void _curl_load(Request& r, MethodParams& params){
720: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
721: }
722:
723: // constructor
724: MCurl::MCurl(): Methoded("curl") {
725: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 726: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 727: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 728: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 729: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 730: }
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