Annotation of parser3/src/classes/curl.C, revision 1.69
1.1 misha 1: /** @file
2: Parser: @b curl parser class.
3:
1.67 moko 4: Copyright (c) 2001-2020 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:
1.69 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.68 2021/10/19 16:16:35 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:
1.55 moko 72: struct ParserOptions : public PA_Allocated {
1.39 moko 73: // real options
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;
1.39 moko 78:
79: // stuff for internal use
80: const char *url;
1.4 misha 81: struct curl_httppost *f_post;
1.19 moko 82: FILE *f_stderr;
1.1 misha 83:
1.60 moko 84: // if response content-length check required
85: bool no_body;
86: // stuff to walkaround curl request content-length bugs
1.57 moko 87: bool is_post;
88: bool has_content_length;
89:
1.60 moko 90: ParserOptions() : filename(0), content_type(0), is_text(true), charset(0), response_charset(0), url(0), f_post(0), f_stderr(0), no_body(false), is_post(false), has_content_length(false){}
1.4 misha 91: ~ParserOptions() {
92: f_curl_formfree(f_post);
1.19 moko 93: if(f_stderr)
94: fclose(f_stderr);
1.4 misha 95: }
1.55 moko 96:
1.1 misha 97: };
98:
1.9 moko 99: // using TLS instead of keeping variables in request
100: THREAD_LOCAL CURL *fcurl = 0;
101: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 102:
103: static CURL *curl(){
104: if(!fcurl)
105: throw Exception("curl", 0, "outside of 'session' operator");
106: return fcurl;
107: }
108:
109: static ParserOptions &options(){
110: if(!foptions)
111: throw Exception("curl", 0, "outside of 'session' operator");
112: return *foptions;
113: }
114:
115: // using temporal object scheme to garanty cleanup call
116: class Temp_curl {
1.4 misha 117: CURL *saved_curl;
118: ParserOptions *saved_options;
1.66 moko 119:
120: // every TLS should be referenced elsewhere, or GC will collect it
121: CURL *thread_curl;
122: ParserOptions *thread_options;
1.1 misha 123: public:
1.4 misha 124: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.66 moko 125: thread_curl = fcurl = f_curl_easy_init();
126: thread_options = foptions = new ParserOptions();
1.27 moko 127: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
1.1 misha 128: }
1.56 moko 129:
1.1 misha 130: ~Temp_curl() {
131: f_curl_easy_cleanup(fcurl);
132: fcurl = saved_curl;
133: delete foptions;
134: foptions = saved_options;
135: }
136: };
137:
138: bool curl_linked = false;
1.41 moko 139: const char *curl_status = 0;
1.29 moko 140: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 141:
142: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
1.41 moko 143: if(!curl_linked)
1.1 misha 144: curl_status=dlink(curl_library);
145:
146: if(curl_status == 0){
1.41 moko 147: curl_linked=true;
1.1 misha 148: Temp_curl temp_curl;
149: action(r,params);
150: } else {
1.69 ! moko 151: const char *hint=strcmp(curl_library, "libcurl" LT_MODULE_EXT) ? "" : " (at first call ^curl:options[ $.library[correct.libcurl" LT_MODULE_EXT ".name] ])";
! 152: throw Exception("curl", 0, "failed to load curl library %s%s", curl_status, hint);
1.1 misha 153: }
154: }
155:
156: static void _curl_session_action(Request& r, MethodParams& params){
157: Value& body_code=params.as_junction(0, "body must be code");
158: r.process_write(body_code);
159: }
160:
161: static void _curl_session(Request& r, MethodParams& params){
162: temp_curl(_curl_session_action, r, params);
163: }
164:
1.5 misha 165: static void _curl_version_action(Request& r, MethodParams& ){
1.46 moko 166: r.write(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
1.4 misha 167: }
168:
169: static void _curl_version(Request& r, MethodParams& params){
170: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
171: }
1.1 misha 172:
1.55 moko 173: struct CurlOption : public PA_Allocated{
1.1 misha 174:
175: enum OptionType {
176: CURL_STRING,
177: CURL_URLENCODE, // url-encoded string
1.4 misha 178: CURL_URL,
1.1 misha 179: CURL_INT,
1.60 moko 180: CURL_NO_BODY,
1.1 misha 181: CURL_POST,
1.57 moko 182: CURL_POSTFIELDS,
1.4 misha 183: CURL_FORM,
1.1 misha 184: CURL_HEADERS,
185: CURL_FILE,
1.15 moko 186: CURL_STDERR,
1.56 moko 187: CURL_HTTP_VERSION,
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:
1.57 moko 232: CURL_OPT(CURL_POST, POST);
1.1 misha 233: CURL_OPT(CURL_INT, HTTPGET);
1.60 moko 234: CURL_OPT(CURL_NO_BODY, NOBODY);
1.4 misha 235: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 236:
1.57 moko 237: CURL_OPT(CURL_POSTFIELDS, POSTFIELDS); // hopefully is safe too
238: CURL_OPT(CURL_POSTFIELDS, 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);
1.43 moko 291: CURL_OPT(CURL_INT, SSLVERSION);
1.56 moko 292: CURL_OPT(CURL_HTTP_VERSION, HTTP_VERSION);
1.1 misha 293:
294: PARSER_OPT(PARSER_LIBRARY, "library");
295: PARSER_OPT(PARSER_NAME, "name");
296: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
297: PARSER_OPT(PARSER_MODE, "mode");
298: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 299: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 300: }
301:
302: } *curl_options=0;
303:
1.55 moko 304: struct CurlInfo : public PA_Allocated{
1.32 moko 305:
306: enum OptionType {
307: CURL_STRING,
308: CURL_INT,
1.56 moko 309: CURL_DOUBLE,
310: CURL_HTTP_VERSION
1.32 moko 311: };
312:
313: CURLINFO id;
314: OptionType type;
315: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
316: };
317:
1.61 moko 318: class CurlInfoHash: public OrderedHashString<CurlInfo*> {
1.32 moko 319: public:
320: CurlInfoHash() {
321: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
1.61 moko 322: CURL_INF(CURL_STRING, SCHEME);
323: CURL_INF(CURL_HTTP_VERSION, HTTP_VERSION);
324: CURL_INF(CURL_STRING, EFFECTIVE_URL);
325: CURL_INF(CURL_STRING, CONTENT_TYPE);
326: CURL_INF(CURL_INT, RESPONSE_CODE);
327: CURL_INF(CURL_INT, OS_ERRNO);
328:
329: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
1.32 moko 330: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
1.61 moko 331: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
332: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
1.32 moko 333: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
1.61 moko 334: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
335:
1.32 moko 336: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
337: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
338: CURL_INF(CURL_INT, HEADER_SIZE);
1.61 moko 339: CURL_INF(CURL_INT, REQUEST_SIZE);
340: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
341: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
342: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
343: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
344:
1.32 moko 345: CURL_INF(CURL_INT, NUM_CONNECTS);
346: CURL_INF(CURL_STRING, PRIMARY_IP);
1.61 moko 347: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
1.32 moko 348: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
349: CURL_INF(CURL_INT, REDIRECT_COUNT);
350: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
351: CURL_INF(CURL_STRING, REDIRECT_URL);
352: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
353: }
354:
355: } *curl_infos=0;
356:
1.1 misha 357: static const char *curl_urlencode(const String &s, Request& r){
358: if(options().charset){
359: Temp_client_charset temp(r.charsets, *options().charset);
360: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
361: } else
362: return s.untaint_cstr(String::L_URI);
363: }
364:
365: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
366: struct curl_slist *slist=NULL;
367:
368: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
369: String header =
1.10 moko 370: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 371: << ": "
1.10 moko 372: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 373:
374: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
375: }
376: return slist;
377: }
378:
1.4 misha 379: static const char* curl_transcode(const String &s, Request& r){
380: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
381: }
382:
383: static void curl_form(HashStringValue *value_hash, Request& r){
384: struct curl_httppost *f_last=0;
385: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
386: const char *key = curl_transcode(String(i.key().cstr()), r);
387: if(const String* svalue = i.value()->get_string()){
388: // string
389: f_curl_formadd(&options().f_post, &f_last,
390: CURLFORM_PTRNAME, key,
391: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
392: CURLFORM_END);
393: } else if(Table* tvalue = i.value()->get_table()){
394: // table
395: for(size_t t = 0; t < tvalue->count(); t++) {
396: f_curl_formadd(&options().f_post, &f_last,
397: CURLFORM_PTRNAME, key,
398: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
399: CURLFORM_END);
400: }
401: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
402: // file
403: f_curl_formadd(&options().f_post, &f_last,
404: CURLFORM_PTRNAME, key,
405: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
406: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
407: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
408: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
409: CURLFORM_END);
410: } else {
1.56 moko 411: 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());
1.4 misha 412: }
413: }
414: }
415:
1.18 moko 416: static const char *curl_check_file(const String &file_spec){
417: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
418: struct stat finfo;
1.49 moko 419: if(pa_stat(file_spec_cstr, &finfo)==0)
1.18 moko 420: check_safe_mode(finfo, file_spec, file_spec_cstr);
421: return file_spec_cstr;
422: }
423:
1.56 moko 424: static long curl_http_version(const String &name){
425: if(name.is_empty()) return CURL_HTTP_VERSION_NONE;
426:
427: if(name == "1.0") return CURL_HTTP_VERSION_1_0;
428: if(name == "1.1") return CURL_HTTP_VERSION_1_1;
429: if(name == "2") return CURL_HTTP_VERSION_2;
430: if(name == "2.0") return CURL_HTTP_VERSION_2_0;
431:
432: const char *sname = str_upper(name.cstr());
433: if(!strcmp(sname,"2TLS")) return CURL_HTTP_VERSION_2TLS;
434: if(!strcmp(sname,"2ONLY")) return CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE;
435: throw Exception("curl", &name, "invalid http_version option value");
436: }
437:
438: static const char *curl_http_version_name(long value){
439: if(value == CURL_HTTP_VERSION_NONE) return "none";
440: if(value == CURL_HTTP_VERSION_1_0) return "1.0";
441: if(value == CURL_HTTP_VERSION_1_1) return "1.1";
442: if(value == CURL_HTTP_VERSION_2) return "2";
443: throw Exception("curl", 0, "invalid http version '%d' in info", value);
444: }
445:
1.1 misha 446: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
447: CurlOption *opt=curl_options->get(key);
448:
449: if(opt==0)
450: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
451:
452: CURLcode res = CURLE_OK;
1.44 moko 453: Value &v=r.process(*value);
1.1 misha 454:
455: switch (opt->type){
456: case CurlOption::CURL_STRING:{
457: // string curl option
458: const char *value_str=v.as_string().cstr();
459: res=f_curl_easy_setopt(curl(), opt->id, value_str);
460: break;
461: }
462: case CurlOption::CURL_URLENCODE:{
463: // url-encoded string curl option
464: const char *value_str=curl_urlencode(v.as_string(), r);
465: res=f_curl_easy_setopt(curl(), opt->id, value_str);
466: break;
467: }
1.4 misha 468: case CurlOption::CURL_URL:{
469: // url-encoded string curl_url option
1.5 misha 470: const String url = v.as_string();
471: if(!url.starts_with("http://") && !url.starts_with("https://"))
472: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 473: options().url=curl_urlencode(url, r);
474: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 475: break;
476: }
1.1 misha 477: case CurlOption::CURL_INT:{
1.2 misha 478: // integer curl option
479: long value_int=(long)v.as_double();
1.1 misha 480: res=f_curl_easy_setopt(curl(), opt->id, value_int);
481: break;
482: }
1.60 moko 483: case CurlOption::CURL_NO_BODY:{
484: // integer curl option
485: long value_int=(long)v.as_double();
486: res=f_curl_easy_setopt(curl(), opt->id, value_int);
487: options().no_body=value_int != 0;
488: break;
489: }
1.1 misha 490: case CurlOption::CURL_POST:{
1.57 moko 491: // integer curl option
492: long value_int=(long)v.as_double();
493: res=f_curl_easy_setopt(curl(), opt->id, value_int);
494: options().is_post=value_int != 0;
495: break;
496: }
497: case CurlOption::CURL_POSTFIELDS:{
1.1 misha 498: // http post curl option
499: if(v.get_string()){
1.2 misha 500: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 501: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
502: } else {
1.68 moko 503: VFile *file=v.as_vfile();
1.2 misha 504: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 505: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
506: }
1.57 moko 507: options().has_content_length=true;
1.1 misha 508: break;
509: }
1.4 misha 510: case CurlOption::CURL_FORM:{
1.48 moko 511: HashStringValue *value_hash = v.as_hash("failed to set option 'httppost': value");
1.4 misha 512: if(value_hash){
513: curl_form(value_hash, r);
1.48 moko 514: } else {
1.57 moko 515: if(options().f_post)
516: f_curl_formfree(options().f_post);
1.4 misha 517: options().f_post = 0;
1.5 misha 518: }
1.4 misha 519: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
1.57 moko 520: options().has_content_length=true;
1.4 misha 521: break;
522: }
1.1 misha 523: case CurlOption::CURL_HEADERS:{
524: // http headers curl option
1.48 moko 525: HashStringValue *value_hash=v.as_hash("failed to set option 'httpheader': value");
1.1 misha 526: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
527: break;
528: }
529: case CurlOption::CURL_FILE:{
530: // file-spec curl option
1.65 moko 531: const char *file_spec_cstr=curl_check_file(r.full_disk_path(v.as_string()));
1.18 moko 532: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 533: break;
534: }
1.16 moko 535: case CurlOption::CURL_STDERR:{
536: // verbose output redirection from stderr to file curl option
1.65 moko 537: const char *file_spec_cstr=curl_check_file(r.full_disk_path(v.as_string()));
1.53 moko 538: FILE *f_stderr=options().f_stderr=pa_fopen(file_spec_cstr, "wt");
1.19 moko 539: if (f_stderr){
540: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 541: } else {
1.18 moko 542: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 543: }
544: break;
545: }
1.56 moko 546: case CurlOption::CURL_HTTP_VERSION:{
547: // http protocol version name curl option
548: long value_int=curl_http_version(v.as_string());
549: res=f_curl_easy_setopt(curl(), opt->id, value_int);
550: break;
551: }
1.1 misha 552: case CurlOption::PARSER_LIBRARY:{
553: // 'library' parser option
1.41 moko 554: if(!curl_linked){
1.1 misha 555: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
556: } else
1.16 moko 557: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 558: break;
559: }
560: case CurlOption::PARSER_NAME:{
561: // 'name' parser option
1.12 misha 562: options().filename=&v.as_string();
1.1 misha 563: break;
564: }
565: case CurlOption::PARSER_CONTENT_TYPE:{
566: // 'content-type' parser option
567: options().content_type=&v.as_string();
568: break;
569: }
570: case CurlOption::PARSER_MODE:{
571: // 'mode' parser option
1.12 misha 572: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 573: break;
574: }
575: case CurlOption::PARSER_CHARSET:{
1.30 moko 576: // 'charset' parser option should be processed before other options
1.1 misha 577: break;
578: }
1.4 misha 579: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 580: // 'response-charset' parser option
1.42 moko 581: options().response_charset=&pa_charsets.get(v.as_string());
1.4 misha 582: break;
583: }
1.1 misha 584: }
585:
586: if(res != CURLE_OK)
587: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
588: }
589:
1.3 misha 590: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 591: if(curl_options==0)
592: curl_options=new CurlOptionHash();
593:
1.30 moko 594: if(HashStringValue* options_hash=params.as_hash(0)){
595: if(Value* value=options_hash->get("charset")){
596: // charset should be handled first as params may require transcode
1.44 moko 597: Value &v=r.process(*value);
1.42 moko 598: options().charset=&pa_charsets.get(v.as_string());
1.30 moko 599: }
600: options_hash->for_each<Request&>(curl_setopt, r);
601: }
1.1 misha 602: }
603:
1.32 moko 604: #define CURL_GETINFO(arg) \
605: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
1.58 moko 606: if (fail_on_error) \
607: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
608: return 0; \
1.32 moko 609: }
610:
1.58 moko 611: static Value *curl_getinfo(const String::Body &key, CurlInfo *info, bool fail_on_error=false) {
1.32 moko 612: CURLcode res;
613: switch (info->type){
614: case CurlInfo::CURL_STRING:{
615: char *str=0;
616: CURL_GETINFO(str);
1.33 moko 617: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 618: }
619: case CurlInfo::CURL_INT:{
620: long l=0;
621: CURL_GETINFO(l);
622: return new VInt(l);
623: }
624: case CurlInfo::CURL_DOUBLE:{
625: double d=0;
626: CURL_GETINFO(d);
627: return new VDouble(d);
628: }
1.56 moko 629: case CurlInfo::CURL_HTTP_VERSION:{
630: long l=0;
631: CURL_GETINFO(l);
632: return new VString(*new String(curl_http_version_name(l), String::L_TAINTED));
633: }
1.32 moko 634: }
635: return VVoid::get();
636: }
637:
638: static void _curl_info(Request& r, MethodParams& params){
639: if(curl_infos==0)
640: curl_infos=new CurlInfoHash();
641: if(params.count()==1){
642: const String &name=params.as_string(0, "name must be string");
1.58 moko 643: CurlInfo *info=curl_infos->get(name);
644: if(info==0)
645: throw Exception("curl", 0, "called with invalid parameter '%s'", name.cstr());
1.59 moko 646: r.write(*curl_getinfo(name, info, true));
1.32 moko 647: } else {
648: VHash& result=*new VHash;
649: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.59 moko 650: Value *value=curl_getinfo(i.key(), i.value());
1.58 moko 651: if(value)
652: result.get_hash()->put(i.key(), value);
1.32 moko 653: }
1.46 moko 654: r.write(result);
1.32 moko 655: }
656: }
657:
1.1 misha 658: class Curl_buffer{
659: public:
660: char *buf;
661: size_t length;
662: size_t buf_size;
1.62 moko 663: HTTP_Headers& headers;
1.1 misha 664:
1.62 moko 665: Curl_buffer(HTTP_Headers& aheaders) : buf((char *)pa_malloc_atomic(MAX_STRING)), length(0), buf_size(MAX_STRING-1), headers(aheaders){}
1.50 moko 666:
667: void resize(size_t size){
668: buf_size=size;
669: buf=(char *)pa_realloc(buf, size+1);
670: }
1.1 misha 671: };
672:
673: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
674: if(result == 0)
675: return 0;
676:
677: size=size*nmemb;
678: if(size>0){
1.50 moko 679: size_t buf_required = result->length + size;
680: if(buf_required > result->buf_size)
1.51 moko 681: result->resize(buf_required <= result->headers.content_length ? (size_t)result->headers.content_length : result->buf_size*2 + size);
1.1 misha 682: memcpy(result->buf+result->length, data, size);
683: result->length += size;
684: }
685: return size;
686: }
687:
1.62 moko 688: static int curl_header(char *data, size_t size, size_t nmemb, HTTP_Headers *result){
1.1 misha 689: if(result == 0)
690: return 0;
691:
692: size=size*nmemb;
693: if(size>0){
1.47 moko 694: char *header=pa_strdup(data, size);
695: if(!pa_strncasecmp(header, "HTTP/") && !strchr(header, ':')){
696: // response code, clearing possible headers from previous requests
697: result->clear();
698: } else {
699: result->add_header(header);
1.60 moko 700: if(result->content_length>pa_file_size_limit && !options().no_body)
1.50 moko 701: return 0;
1.47 moko 702: }
1.1 misha 703: }
704: return size;
705: }
706:
707: #define CURL_SETOPT(option, arg, message) \
708: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
709: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
710: }
711:
712: static void _curl_load_action(Request& r, MethodParams& params){
713: if(params.count()==1)
1.3 misha 714: _curl_options(r, params);
1.1 misha 715:
716: CURLcode res;
717:
718: // we need a container for headers as VFile fields can be put only after VFile.set
1.62 moko 719: HTTP_Headers response;
1.1 misha 720: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 721: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 722:
1.50 moko 723: Curl_buffer body(response);
724: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
725: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
726:
1.57 moko 727: if(options().is_post && !options().has_content_length){
728: // libcurl bug walkaround. Prior to 7.38 (Debian Jessie) curl passed Content-length: -1
729: // after that no Content-length header is passed, that hangs request to nginx.
730: CURL_SETOPT(CURLOPT_POSTFIELDSIZE, 0, "post content-length");
731: }
732:
1.63 moko 733: ALTER_EXCEPTION_SOURCE(res=f_curl_easy_perform(curl()), new String(options().url));
734: if(res != CURLE_OK){
1.15 moko 735: const char *ex_type = 0;
1.4 misha 736: switch(res){
737: case CURLE_OPERATION_TIMEDOUT:
738: ex_type = "curl.timeout"; break;
739: case CURLE_COULDNT_RESOLVE_HOST:
740: ex_type = "curl.host"; break;
741: case CURLE_COULDNT_CONNECT:
742: ex_type = "curl.connect"; break;
743: case CURLE_HTTP_RETURNED_ERROR:
744: ex_type = "curl.status"; break;
745: case CURLE_SSL_CONNECT_ERROR:
746: case CURLE_SSL_CERTPROBLEM:
747: case CURLE_SSL_CIPHER:
748: case CURLE_SSL_CACERT:
749: case CURLE_SSL_ENGINE_INITFAILED:
750: ex_type = "curl.ssl"; break;
1.50 moko 751: case CURLE_WRITE_ERROR:
1.64 moko 752: check_file_size(response.content_length, new String(options().url)); break;
1.31 moko 753: default: break;
1.4 misha 754: }
1.63 moko 755: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), new String(options().url), "%s", f_curl_easy_strerror(res));
1.1 misha 756: }
757:
758: // assure trailing zero
759: body.buf[body.length]=0;
760:
1.4 misha 761: VFile& result=*new VFile;
762:
1.8 moko 763: Charset *asked_charset = options().response_charset;
1.38 moko 764: if (!asked_charset && !response.content_type.is_empty())
765: asked_charset=detect_charset(response.content_type.cstr());
766:
767: if(options().is_text)
1.42 moko 768: asked_charset=pa_charsets.checkBOM(body.buf, body.length, asked_charset);
1.38 moko 769:
770: if (!asked_charset)
771: asked_charset = options().charset;
1.1 misha 772:
773: if(options().is_text && asked_charset != 0){
774: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
775: body.buf=(char *)c.str;
776: body.length=c.length;
777: }
778:
1.38 moko 779: 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 780: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 781:
1.39 moko 782: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 783:
1.4 misha 784: long http_status = 0;
785: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
786: result.fields().put("status", new VInt(http_status));
787: }
788:
1.38 moko 789: VHash* vtables=new VHash;
790: result.fields().put("tables", vtables);
1.23 misha 791:
1.62 moko 792: for(Array_iterator<HTTP_Headers::Header> i(response.headers); i.has_next(); ){
793: HTTP_Headers::Header header=i.next();
1.24 misha 794:
795: if(asked_charset)
1.38 moko 796: header.transcode(*asked_charset, r.charsets.source());
797:
798: String &header_value=*new String(header.value, String::L_TAINTED);
799:
800: tables_update(vtables->hash(), header.name, header_value);
801: result.fields().put(header.name, new VString(header_value));
1.1 misha 802: }
803:
1.38 moko 804: // filling $.cookies
805: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
806: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 807:
1.46 moko 808: r.write(result);
1.1 misha 809: }
810:
811: static void _curl_load(Request& r, MethodParams& params){
812: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
813: }
814:
815: // constructor
816: MCurl::MCurl(): Methoded("curl") {
817: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 818: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 819: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 820: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 821: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 822: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to curl.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / classes