Annotation of parser3/src/classes/curl.C, revision 1.40
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:
1.40 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.39 2016/07/27 22:34:49 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:
1.39 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;
1.29 moko 130: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 131:
132: const char *curl_status = 0;
133:
134: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
135: if(!curl_linked){
136: curl_linked=true;
137: curl_status=dlink(curl_library);
138: }
139:
140: if(curl_status == 0){
141: Temp_curl temp_curl;
142: action(r,params);
143: } else {
144: throw Exception("curl", 0, "failed to load curl library %s: %s", curl_library, curl_status);
145: }
146: }
147:
148: static void _curl_session_action(Request& r, MethodParams& params){
149: Value& body_code=params.as_junction(0, "body must be code");
150: r.process_write(body_code);
151: }
152:
153: static void _curl_session(Request& r, MethodParams& params){
154: temp_curl(_curl_session_action, r, params);
155: }
156:
1.5 misha 157: static void _curl_version_action(Request& r, MethodParams& ){
1.4 misha 158: r.write_no_lang(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
159: }
160:
161: static void _curl_version(Request& r, MethodParams& params){
162: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
163: }
1.1 misha 164:
165: class CurlOption {
166: public:
167:
168: enum OptionType {
169: CURL_STRING,
170: CURL_URLENCODE, // url-encoded string
1.4 misha 171: CURL_URL,
1.1 misha 172: CURL_INT,
173: CURL_POST,
1.4 misha 174: CURL_FORM,
1.1 misha 175: CURL_HEADERS,
176: CURL_FILE,
1.15 moko 177: CURL_STDERR,
1.1 misha 178: PARSER_LIBRARY,
179: PARSER_NAME,
180: PARSER_CONTENT_TYPE,
181: PARSER_MODE,
1.4 misha 182: PARSER_CHARSET,
183: PARSER_RESPONSE_CHARSET
1.1 misha 184: };
185:
186: CURLoption id;
187: OptionType type;
188: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
189: };
190:
191: class CurlOptionHash: public HashString<CurlOption*> {
192: public:
193: CurlOptionHash() {
194: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
195: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 196: CURL_OPT(CURL_URL, URL);
1.1 misha 197: CURL_OPT(CURL_STRING, INTERFACE);
198: CURL_OPT(CURL_INT, LOCALPORT);
199: CURL_OPT(CURL_INT, PORT);
1.4 misha 200:
1.15 moko 201: CURL_OPT(CURL_INT, VERBOSE);
202: CURL_OPT(CURL_STDERR, STDERR);
203: CURL_OPT(CURL_INT, MAXFILESIZE);
204:
1.1 misha 205: CURL_OPT(CURL_INT, HTTPAUTH);
206: CURL_OPT(CURL_STRING, USERPWD);
207:
208: CURL_OPT(CURL_STRING, USERNAME);
209: CURL_OPT(CURL_STRING, PASSWORD);
210:
1.4 misha 211: CURL_OPT(CURL_URLENCODE, USERAGENT);
212: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 213: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 214:
1.1 misha 215: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 216: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
217:
1.1 misha 218: CURL_OPT(CURL_INT, FOLLOWLOCATION);
219: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 220: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 221:
222: CURL_OPT(CURL_INT, POST);
223: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 224: CURL_OPT(CURL_INT, NOBODY);
225: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 226:
227: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
228: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 229: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 230:
231: CURL_OPT(CURL_HEADERS, HTTPHEADER);
232: CURL_OPT(CURL_URLENCODE, COOKIE);
233: CURL_OPT(CURL_URLENCODE, COOKIELIST);
234: CURL_OPT(CURL_INT, COOKIESESSION);
235:
236: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
237: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
238: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
239:
1.4 misha 240: CURL_OPT(CURL_INT, MAXREDIRS);
241: CURL_OPT(CURL_INT, POSTREDIR);
242:
243: CURL_OPT(CURL_STRING, RANGE);
244:
1.1 misha 245: CURL_OPT(CURL_INT, TIMEOUT);
246: CURL_OPT(CURL_INT, TIMEOUT_MS);
247: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
248: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
249: CURL_OPT(CURL_INT, MAXCONNECTS);
250:
1.4 misha 251: CURL_OPT(CURL_STRING, PROXY);
252: CURL_OPT(CURL_INT, PROXYPORT);
253: CURL_OPT(CURL_INT, PROXYTYPE);
254: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
255: CURL_OPT(CURL_STRING, PROXYUSERPWD);
256: CURL_OPT(CURL_INT, PROXYAUTH);
257:
1.1 misha 258: CURL_OPT(CURL_INT, FRESH_CONNECT);
259: CURL_OPT(CURL_INT, FORBID_REUSE);
260: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
261: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 262: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 263:
264: CURL_OPT(CURL_FILE, SSLCERT);
265: CURL_OPT(CURL_STRING, SSLCERTTYPE);
266: CURL_OPT(CURL_FILE, SSLKEY);
267: CURL_OPT(CURL_STRING, SSLKEYTYPE);
268: CURL_OPT(CURL_STRING, KEYPASSWD);
269: CURL_OPT(CURL_STRING, SSLENGINE);
270: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
271:
272: CURL_OPT(CURL_FILE, ISSUERCERT);
273: CURL_OPT(CURL_FILE, CRLFILE);
274:
275: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 276: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 277: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
278: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
279: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
280: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
281:
282: PARSER_OPT(PARSER_LIBRARY, "library");
283: PARSER_OPT(PARSER_NAME, "name");
284: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
285: PARSER_OPT(PARSER_MODE, "mode");
286: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 287: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 288: }
289:
290: } *curl_options=0;
291:
1.32 moko 292: class CurlInfo {
293: public:
294:
295: enum OptionType {
296: CURL_STRING,
297: CURL_INT,
298: CURL_DOUBLE
299: };
300:
301: CURLINFO id;
302: OptionType type;
303: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
304: };
305:
306: class CurlInfoHash: public HashString<CurlInfo*> {
307: public:
308: CurlInfoHash() {
309: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
310: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
311: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
312: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
313: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
314: CURL_INF(CURL_STRING, CONTENT_TYPE);
315: CURL_INF(CURL_STRING, EFFECTIVE_URL);
316: CURL_INF(CURL_INT, HEADER_SIZE);
317: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
318: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
319: CURL_INF(CURL_INT, NUM_CONNECTS);
320: CURL_INF(CURL_INT, OS_ERRNO);
321: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
322: CURL_INF(CURL_STRING, PRIMARY_IP);
323: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
324: CURL_INF(CURL_INT, REDIRECT_COUNT);
325: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
326: CURL_INF(CURL_STRING, REDIRECT_URL);
327: CURL_INF(CURL_INT, REQUEST_SIZE);
328: CURL_INF(CURL_INT, RESPONSE_CODE);
329: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
330: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
331: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
332: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
333: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
334: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
335: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
336: }
337:
338: } *curl_infos=0;
339:
1.1 misha 340: static const char *curl_urlencode(const String &s, Request& r){
341: if(options().charset){
342: Temp_client_charset temp(r.charsets, *options().charset);
343: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
344: } else
345: return s.untaint_cstr(String::L_URI);
346: }
347:
348: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
349: struct curl_slist *slist=NULL;
350:
351: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
352: String header =
1.10 moko 353: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 354: << ": "
1.10 moko 355: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 356:
357: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
358: }
359: return slist;
360: }
361:
1.4 misha 362: static const char* curl_transcode(const String &s, Request& r){
363: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
364: }
365:
366: static void curl_form(HashStringValue *value_hash, Request& r){
367: struct curl_httppost *f_last=0;
368: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
369: const char *key = curl_transcode(String(i.key().cstr()), r);
370: if(const String* svalue = i.value()->get_string()){
371: // string
372: f_curl_formadd(&options().f_post, &f_last,
373: CURLFORM_PTRNAME, key,
374: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
375: CURLFORM_END);
376: } else if(Table* tvalue = i.value()->get_table()){
377: // table
378: for(size_t t = 0; t < tvalue->count(); t++) {
379: f_curl_formadd(&options().f_post, &f_last,
380: CURLFORM_PTRNAME, key,
381: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
382: CURLFORM_END);
383: }
384: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
385: // file
386: f_curl_formadd(&options().f_post, &f_last,
387: CURLFORM_PTRNAME, key,
388: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
389: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
390: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
391: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
392: CURLFORM_END);
393: } else {
394: 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());
395: }
396: }
397: }
398:
1.18 moko 399: static const char *curl_check_file(const String &file_spec){
400: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
401: struct stat finfo;
402: if(stat(file_spec_cstr, &finfo)==0)
403: check_safe_mode(finfo, file_spec, file_spec_cstr);
404: return file_spec_cstr;
405: }
406:
1.1 misha 407: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
408: CurlOption *opt=curl_options->get(key);
409:
410: if(opt==0)
411: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
412:
413: CURLcode res = CURLE_OK;
414: Value &v=r.process_to_value(*value);
415:
416: switch (opt->type){
417: case CurlOption::CURL_STRING:{
418: // string curl option
419: const char *value_str=v.as_string().cstr();
420: res=f_curl_easy_setopt(curl(), opt->id, value_str);
421: break;
422: }
423: case CurlOption::CURL_URLENCODE:{
424: // url-encoded string curl option
425: const char *value_str=curl_urlencode(v.as_string(), r);
426: res=f_curl_easy_setopt(curl(), opt->id, value_str);
427: break;
428: }
1.4 misha 429: case CurlOption::CURL_URL:{
430: // url-encoded string curl_url option
1.5 misha 431: const String url = v.as_string();
432: if(!url.starts_with("http://") && !url.starts_with("https://"))
433: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 434: options().url=curl_urlencode(url, r);
435: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 436: break;
437: }
1.1 misha 438: case CurlOption::CURL_INT:{
1.2 misha 439: // integer curl option
440: long value_int=(long)v.as_double();
1.1 misha 441: res=f_curl_easy_setopt(curl(), opt->id, value_int);
442: break;
443: }
444: case CurlOption::CURL_POST:{
445: // http post curl option
446: if(v.get_string()){
1.2 misha 447: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 448: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
449: } else {
450: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 451: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 452: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
453: }
454: break;
455: }
1.4 misha 456: case CurlOption::CURL_FORM:{
457: HashStringValue *value_hash = v.get_hash();
458: if(value_hash){
459: curl_form(value_hash, r);
1.5 misha 460: } else if(v.get_string()->is_empty()){
1.4 misha 461: f_curl_formfree(options().f_post);
462: options().f_post = 0;
463: } else {
1.16 moko 464: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 465: }
1.4 misha 466: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
467: break;
468: }
1.1 misha 469: case CurlOption::CURL_HEADERS:{
470: // http headers curl option
471: HashStringValue *value_hash=v.get_hash();
472: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
473: break;
474: }
475: case CurlOption::CURL_FILE:{
476: // file-spec curl option
1.18 moko 477: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
478: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 479: break;
480: }
1.16 moko 481: case CurlOption::CURL_STDERR:{
482: // verbose output redirection from stderr to file curl option
1.18 moko 483: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 484: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
485: if (f_stderr){
486: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 487: } else {
1.18 moko 488: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 489: }
490: break;
491: }
1.1 misha 492: case CurlOption::PARSER_LIBRARY:{
493: // 'library' parser option
494: if(fcurl==0){
495: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
496: } else
1.16 moko 497: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 498: break;
499: }
500: case CurlOption::PARSER_NAME:{
501: // 'name' parser option
1.12 misha 502: options().filename=&v.as_string();
1.1 misha 503: break;
504: }
505: case CurlOption::PARSER_CONTENT_TYPE:{
506: // 'content-type' parser option
507: options().content_type=&v.as_string();
508: break;
509: }
510: case CurlOption::PARSER_MODE:{
511: // 'mode' parser option
1.12 misha 512: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 513: break;
514: }
515: case CurlOption::PARSER_CHARSET:{
1.30 moko 516: // 'charset' parser option should be processed before other options
1.1 misha 517: break;
518: }
1.4 misha 519: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 520: // 'response-charset' parser option
1.40 ! moko 521: options().response_charset=&::charsets.get(v.as_string());
1.4 misha 522: break;
523: }
1.1 misha 524: }
525:
526: if(res != CURLE_OK)
527: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
528: }
529:
1.3 misha 530: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 531: if(curl_options==0)
532: curl_options=new CurlOptionHash();
533:
1.30 moko 534: if(HashStringValue* options_hash=params.as_hash(0)){
535: if(Value* value=options_hash->get("charset")){
536: // charset should be handled first as params may require transcode
537: Value &v=r.process_to_value(*value);
1.40 ! moko 538: options().charset=&::charsets.get(v.as_string());
1.30 moko 539: }
540: options_hash->for_each<Request&>(curl_setopt, r);
541: }
1.1 misha 542: }
543:
1.32 moko 544: #define CURL_GETINFO(arg) \
545: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
546: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
547: }
548:
1.34 moko 549: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
550: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 551: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
552:
553: CURLcode res;
554: switch (info->type){
555: case CurlInfo::CURL_STRING:{
556: char *str=0;
557: CURL_GETINFO(str);
1.33 moko 558: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 559: }
560: case CurlInfo::CURL_INT:{
561: long l=0;
562: CURL_GETINFO(l);
563: return new VInt(l);
564: }
565: case CurlInfo::CURL_DOUBLE:{
566: double d=0;
567: CURL_GETINFO(d);
568: return new VDouble(d);
569: }
570: }
571: return VVoid::get();
572: }
573:
574: static void _curl_info(Request& r, MethodParams& params){
575: if(curl_infos==0)
576: curl_infos=new CurlInfoHash();
577: if(params.count()==1){
578: const String &name=params.as_string(0, "name must be string");
579: r.write_assign_lang(*curl_getinfo(name));
580: } else {
581: VHash& result=*new VHash;
582: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 583: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 584: }
585: r.write_no_lang(result);
586: }
587: }
588:
1.1 misha 589:
590: class Curl_buffer{
591: public:
592: char *buf;
593: size_t length;
594: size_t buf_size;
595:
596: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
597: };
598:
599: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
600: if(result == 0)
601: return 0;
602:
603: size=size*nmemb;
604: if(size>0){
605: if(result->length + size >= result->buf_size){
606: result->buf_size = result->buf_size*2 + size;
607: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
608: }
609: memcpy(result->buf+result->length, data, size);
610: result->length += size;
611: }
612: return size;
613: }
614:
1.38 moko 615: static int curl_header(char *data, size_t size, size_t nmemb, ResponseHeaders *result){
1.1 misha 616: if(result == 0)
617: return 0;
618:
619: size=size*nmemb;
620: if(size>0){
1.38 moko 621: result->add_header(pa_strdup(data, size));
1.1 misha 622: }
623: return size;
624: }
625:
626: #define CURL_SETOPT(option, arg, message) \
627: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
628: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
629: }
630:
631: static void _curl_load_action(Request& r, MethodParams& params){
632: if(params.count()==1)
1.3 misha 633: _curl_options(r, params);
1.1 misha 634:
635: CURLcode res;
636:
637: Curl_buffer body;
638: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
639: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
640:
641: // we need a container for headers as VFile fields can be put only after VFile.set
1.38 moko 642: ResponseHeaders response;
1.1 misha 643: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 644: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 645:
646: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 647: const char *ex_type = 0;
1.4 misha 648: switch(res){
649: case CURLE_OPERATION_TIMEDOUT:
650: ex_type = "curl.timeout"; break;
651: case CURLE_COULDNT_RESOLVE_HOST:
652: ex_type = "curl.host"; break;
653: case CURLE_COULDNT_CONNECT:
654: ex_type = "curl.connect"; break;
655: case CURLE_HTTP_RETURNED_ERROR:
656: ex_type = "curl.status"; break;
657: case CURLE_SSL_CONNECT_ERROR:
658: case CURLE_SSL_CERTPROBLEM:
659: case CURLE_SSL_CIPHER:
660: case CURLE_SSL_CACERT:
661: case CURLE_SSL_ENGINE_INITFAILED:
662: ex_type = "curl.ssl"; break;
1.31 moko 663: default: break;
1.4 misha 664: }
1.38 moko 665: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), 0, "%s", f_curl_easy_strerror(res));
1.1 misha 666: }
667:
668: // assure trailing zero
669: body.buf[body.length]=0;
670:
1.4 misha 671: VFile& result=*new VFile;
672:
1.8 moko 673: Charset *asked_charset = options().response_charset;
1.38 moko 674: if (!asked_charset && !response.content_type.is_empty())
675: asked_charset=detect_charset(response.content_type.cstr());
676:
677: if(options().is_text)
678: asked_charset=charsets.checkBOM(body.buf, body.length, asked_charset);
679:
680: if (!asked_charset)
681: asked_charset = options().charset;
1.1 misha 682:
683: if(options().is_text && asked_charset != 0){
684: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
685: body.buf=(char *)c.str;
686: body.length=c.length;
687: }
688:
1.38 moko 689: 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 690: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 691:
1.39 moko 692: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 693:
1.4 misha 694: long http_status = 0;
695: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
696: result.fields().put("status", new VInt(http_status));
697: }
698:
1.38 moko 699: VHash* vtables=new VHash;
700: result.fields().put("tables", vtables);
1.23 misha 701:
1.38 moko 702: for(Array_iterator<ResponseHeaders::Header> i(response.headers); i.has_next(); ){
703: ResponseHeaders::Header header=i.next();
1.24 misha 704:
705: if(asked_charset)
1.38 moko 706: header.transcode(*asked_charset, r.charsets.source());
707:
708: String &header_value=*new String(header.value, String::L_TAINTED);
709:
710: tables_update(vtables->hash(), header.name, header_value);
711: result.fields().put(header.name, new VString(header_value));
1.1 misha 712: }
713:
1.38 moko 714: // filling $.cookies
715: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
716: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 717:
1.1 misha 718: r.write_no_lang(result);
719: }
720:
721: static void _curl_load(Request& r, MethodParams& params){
722: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
723: }
724:
725: // constructor
726: MCurl::MCurl(): Methoded("curl") {
727: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 728: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 729: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 730: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 731: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 732: }
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