Annotation of parser3/src/classes/curl.C, revision 1.46
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:
1.46 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.45 2016/10/25 23:37:52 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& ){
1.46 ! moko 156: r.write(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
1.4 misha 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);
1.43 moko 279: CURL_OPT(CURL_INT, SSLVERSION);
1.1 misha 280:
281: PARSER_OPT(PARSER_LIBRARY, "library");
282: PARSER_OPT(PARSER_NAME, "name");
283: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
284: PARSER_OPT(PARSER_MODE, "mode");
285: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 286: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 287: }
288:
289: } *curl_options=0;
290:
1.32 moko 291: class CurlInfo {
292: public:
293:
294: enum OptionType {
295: CURL_STRING,
296: CURL_INT,
297: CURL_DOUBLE
298: };
299:
300: CURLINFO id;
301: OptionType type;
302: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
303: };
304:
305: class CurlInfoHash: public HashString<CurlInfo*> {
306: public:
307: CurlInfoHash() {
308: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
309: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
310: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
311: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
312: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
313: CURL_INF(CURL_STRING, CONTENT_TYPE);
314: CURL_INF(CURL_STRING, EFFECTIVE_URL);
315: CURL_INF(CURL_INT, HEADER_SIZE);
316: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
317: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
318: CURL_INF(CURL_INT, NUM_CONNECTS);
319: CURL_INF(CURL_INT, OS_ERRNO);
320: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
321: CURL_INF(CURL_STRING, PRIMARY_IP);
322: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
323: CURL_INF(CURL_INT, REDIRECT_COUNT);
324: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
325: CURL_INF(CURL_STRING, REDIRECT_URL);
326: CURL_INF(CURL_INT, REQUEST_SIZE);
327: CURL_INF(CURL_INT, RESPONSE_CODE);
328: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
329: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
330: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
331: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
332: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
333: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
334: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
335: }
336:
337: } *curl_infos=0;
338:
1.1 misha 339: static const char *curl_urlencode(const String &s, Request& r){
340: if(options().charset){
341: Temp_client_charset temp(r.charsets, *options().charset);
342: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
343: } else
344: return s.untaint_cstr(String::L_URI);
345: }
346:
347: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
348: struct curl_slist *slist=NULL;
349:
350: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
351: String header =
1.10 moko 352: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 353: << ": "
1.10 moko 354: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 355:
356: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
357: }
358: return slist;
359: }
360:
1.4 misha 361: static const char* curl_transcode(const String &s, Request& r){
362: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
363: }
364:
365: static void curl_form(HashStringValue *value_hash, Request& r){
366: struct curl_httppost *f_last=0;
367: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
368: const char *key = curl_transcode(String(i.key().cstr()), r);
369: if(const String* svalue = i.value()->get_string()){
370: // string
371: f_curl_formadd(&options().f_post, &f_last,
372: CURLFORM_PTRNAME, key,
373: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
374: CURLFORM_END);
375: } else if(Table* tvalue = i.value()->get_table()){
376: // table
377: for(size_t t = 0; t < tvalue->count(); t++) {
378: f_curl_formadd(&options().f_post, &f_last,
379: CURLFORM_PTRNAME, key,
380: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
381: CURLFORM_END);
382: }
383: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
384: // file
385: f_curl_formadd(&options().f_post, &f_last,
386: CURLFORM_PTRNAME, key,
387: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
388: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
389: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
390: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
391: CURLFORM_END);
392: } else {
393: 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());
394: }
395: }
396: }
397:
1.18 moko 398: static const char *curl_check_file(const String &file_spec){
399: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
400: struct stat finfo;
401: if(stat(file_spec_cstr, &finfo)==0)
402: check_safe_mode(finfo, file_spec, file_spec_cstr);
403: return file_spec_cstr;
404: }
405:
1.1 misha 406: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
407: CurlOption *opt=curl_options->get(key);
408:
409: if(opt==0)
410: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
411:
412: CURLcode res = CURLE_OK;
1.44 moko 413: Value &v=r.process(*value);
1.1 misha 414:
415: switch (opt->type){
416: case CurlOption::CURL_STRING:{
417: // string curl option
418: const char *value_str=v.as_string().cstr();
419: res=f_curl_easy_setopt(curl(), opt->id, value_str);
420: break;
421: }
422: case CurlOption::CURL_URLENCODE:{
423: // url-encoded string curl option
424: const char *value_str=curl_urlencode(v.as_string(), r);
425: res=f_curl_easy_setopt(curl(), opt->id, value_str);
426: break;
427: }
1.4 misha 428: case CurlOption::CURL_URL:{
429: // url-encoded string curl_url option
1.5 misha 430: const String url = v.as_string();
431: if(!url.starts_with("http://") && !url.starts_with("https://"))
432: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 433: options().url=curl_urlencode(url, r);
434: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 435: break;
436: }
1.1 misha 437: case CurlOption::CURL_INT:{
1.2 misha 438: // integer curl option
439: long value_int=(long)v.as_double();
1.1 misha 440: res=f_curl_easy_setopt(curl(), opt->id, value_int);
441: break;
442: }
443: case CurlOption::CURL_POST:{
444: // http post curl option
445: if(v.get_string()){
1.2 misha 446: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 447: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
448: } else {
449: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 450: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 451: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
452: }
453: break;
454: }
1.4 misha 455: case CurlOption::CURL_FORM:{
456: HashStringValue *value_hash = v.get_hash();
457: if(value_hash){
458: curl_form(value_hash, r);
1.5 misha 459: } else if(v.get_string()->is_empty()){
1.4 misha 460: f_curl_formfree(options().f_post);
461: options().f_post = 0;
462: } else {
1.16 moko 463: throw Exception("curl", 0, "failed to set option '%s': value must be a hash", key.cstr());
1.5 misha 464: }
1.4 misha 465: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
466: break;
467: }
1.1 misha 468: case CurlOption::CURL_HEADERS:{
469: // http headers curl option
470: HashStringValue *value_hash=v.get_hash();
471: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
472: break;
473: }
474: case CurlOption::CURL_FILE:{
475: // file-spec curl option
1.18 moko 476: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
477: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 478: break;
479: }
1.16 moko 480: case CurlOption::CURL_STDERR:{
481: // verbose output redirection from stderr to file curl option
1.18 moko 482: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.19 moko 483: FILE *f_stderr=options().f_stderr=fopen(file_spec_cstr, "wt");
484: if (f_stderr){
485: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 486: } else {
1.18 moko 487: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 488: }
489: break;
490: }
1.1 misha 491: case CurlOption::PARSER_LIBRARY:{
492: // 'library' parser option
1.41 moko 493: if(!curl_linked){
1.1 misha 494: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
495: } else
1.16 moko 496: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 497: break;
498: }
499: case CurlOption::PARSER_NAME:{
500: // 'name' parser option
1.12 misha 501: options().filename=&v.as_string();
1.1 misha 502: break;
503: }
504: case CurlOption::PARSER_CONTENT_TYPE:{
505: // 'content-type' parser option
506: options().content_type=&v.as_string();
507: break;
508: }
509: case CurlOption::PARSER_MODE:{
510: // 'mode' parser option
1.12 misha 511: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 512: break;
513: }
514: case CurlOption::PARSER_CHARSET:{
1.30 moko 515: // 'charset' parser option should be processed before other options
1.1 misha 516: break;
517: }
1.4 misha 518: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 519: // 'response-charset' parser option
1.42 moko 520: options().response_charset=&pa_charsets.get(v.as_string());
1.4 misha 521: break;
522: }
1.1 misha 523: }
524:
525: if(res != CURLE_OK)
526: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
527: }
528:
1.3 misha 529: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 530: if(curl_options==0)
531: curl_options=new CurlOptionHash();
532:
1.30 moko 533: if(HashStringValue* options_hash=params.as_hash(0)){
534: if(Value* value=options_hash->get("charset")){
535: // charset should be handled first as params may require transcode
1.44 moko 536: Value &v=r.process(*value);
1.42 moko 537: options().charset=&pa_charsets.get(v.as_string());
1.30 moko 538: }
539: options_hash->for_each<Request&>(curl_setopt, r);
540: }
1.1 misha 541: }
542:
1.32 moko 543: #define CURL_GETINFO(arg) \
544: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
545: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
546: }
547:
1.34 moko 548: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
549: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 550: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
551:
552: CURLcode res;
553: switch (info->type){
554: case CurlInfo::CURL_STRING:{
555: char *str=0;
556: CURL_GETINFO(str);
1.33 moko 557: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 558: }
559: case CurlInfo::CURL_INT:{
560: long l=0;
561: CURL_GETINFO(l);
562: return new VInt(l);
563: }
564: case CurlInfo::CURL_DOUBLE:{
565: double d=0;
566: CURL_GETINFO(d);
567: return new VDouble(d);
568: }
569: }
570: return VVoid::get();
571: }
572:
573: static void _curl_info(Request& r, MethodParams& params){
574: if(curl_infos==0)
575: curl_infos=new CurlInfoHash();
576: if(params.count()==1){
577: const String &name=params.as_string(0, "name must be string");
1.46 ! moko 578: r.write(*curl_getinfo(name));
1.32 moko 579: } else {
580: VHash& result=*new VHash;
581: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 582: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 583: }
1.46 ! moko 584: r.write(result);
1.32 moko 585: }
586: }
587:
1.1 misha 588:
589: class Curl_buffer{
590: public:
591: char *buf;
592: size_t length;
593: size_t buf_size;
594:
595: Curl_buffer() : buf((char *)pa_malloc(MAX_STRING+1)), length(0), buf_size(MAX_STRING){}
596: };
597:
598: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
599: if(result == 0)
600: return 0;
601:
602: size=size*nmemb;
603: if(size>0){
604: if(result->length + size >= result->buf_size){
605: result->buf_size = result->buf_size*2 + size;
606: result->buf = (char *)pa_realloc(result->buf, result->buf_size+1);
607: }
608: memcpy(result->buf+result->length, data, size);
609: result->length += size;
610: }
611: return size;
612: }
613:
1.38 moko 614: static int curl_header(char *data, size_t size, size_t nmemb, ResponseHeaders *result){
1.1 misha 615: if(result == 0)
616: return 0;
617:
618: size=size*nmemb;
619: if(size>0){
1.38 moko 620: result->add_header(pa_strdup(data, size));
1.1 misha 621: }
622: return size;
623: }
624:
625: #define CURL_SETOPT(option, arg, message) \
626: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
627: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
628: }
629:
630: static void _curl_load_action(Request& r, MethodParams& params){
631: if(params.count()==1)
1.3 misha 632: _curl_options(r, params);
1.1 misha 633:
634: CURLcode res;
635:
636: Curl_buffer body;
637: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
638: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
639:
640: // we need a container for headers as VFile fields can be put only after VFile.set
1.38 moko 641: ResponseHeaders response;
1.1 misha 642: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 643: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 644:
645: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 646: const char *ex_type = 0;
1.4 misha 647: switch(res){
648: case CURLE_OPERATION_TIMEDOUT:
649: ex_type = "curl.timeout"; break;
650: case CURLE_COULDNT_RESOLVE_HOST:
651: ex_type = "curl.host"; break;
652: case CURLE_COULDNT_CONNECT:
653: ex_type = "curl.connect"; break;
654: case CURLE_HTTP_RETURNED_ERROR:
655: ex_type = "curl.status"; break;
656: case CURLE_SSL_CONNECT_ERROR:
657: case CURLE_SSL_CERTPROBLEM:
658: case CURLE_SSL_CIPHER:
659: case CURLE_SSL_CACERT:
660: case CURLE_SSL_ENGINE_INITFAILED:
661: ex_type = "curl.ssl"; break;
1.31 moko 662: default: break;
1.4 misha 663: }
1.38 moko 664: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), 0, "%s", f_curl_easy_strerror(res));
1.1 misha 665: }
666:
667: // assure trailing zero
668: body.buf[body.length]=0;
669:
1.4 misha 670: VFile& result=*new VFile;
671:
1.8 moko 672: Charset *asked_charset = options().response_charset;
1.38 moko 673: if (!asked_charset && !response.content_type.is_empty())
674: asked_charset=detect_charset(response.content_type.cstr());
675:
676: if(options().is_text)
1.42 moko 677: asked_charset=pa_charsets.checkBOM(body.buf, body.length, asked_charset);
1.38 moko 678:
679: if (!asked_charset)
680: asked_charset = options().charset;
1.1 misha 681:
682: if(options().is_text && asked_charset != 0){
683: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
684: body.buf=(char *)c.str;
685: body.length=c.length;
686: }
687:
1.38 moko 688: 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 689: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 690:
1.39 moko 691: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 692:
1.4 misha 693: long http_status = 0;
694: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
695: result.fields().put("status", new VInt(http_status));
696: }
697:
1.38 moko 698: VHash* vtables=new VHash;
699: result.fields().put("tables", vtables);
1.23 misha 700:
1.38 moko 701: for(Array_iterator<ResponseHeaders::Header> i(response.headers); i.has_next(); ){
702: ResponseHeaders::Header header=i.next();
1.24 misha 703:
704: if(asked_charset)
1.38 moko 705: header.transcode(*asked_charset, r.charsets.source());
706:
707: String &header_value=*new String(header.value, String::L_TAINTED);
708:
709: tables_update(vtables->hash(), header.name, header_value);
710: result.fields().put(header.name, new VString(header_value));
1.1 misha 711: }
712:
1.38 moko 713: // filling $.cookies
714: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
715: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 716:
1.46 ! moko 717: r.write(result);
1.1 misha 718: }
719:
720: static void _curl_load(Request& r, MethodParams& params){
721: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
722: }
723:
724: // constructor
725: MCurl::MCurl(): Methoded("curl") {
726: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 727: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 728: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 729: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 730: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 731: }
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