Annotation of parser3/src/classes/curl.C, revision 1.73
1.1 misha 1: /** @file
2: Parser: @b curl parser class.
3:
1.70 moko 4: Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com)
5: Authors: Konstantin Morshnev <moko@design.ru>
1.1 misha 6: */
7:
1.3 misha 8: #include "pa_config_includes.h"
9:
1.1 misha 10: #include "pa_vmethod_frame.h"
11: #include "pa_request.h"
12: #include "pa_vfile.h"
13: #include "pa_charsets.h"
1.4 misha 14: #include "pa_vstring.h"
1.32 moko 15: #include "pa_vdate.h"
1.4 misha 16: #include "pa_vtable.h"
17: #include "pa_common.h"
1.11 moko 18: #include "pa_http.h"
1.5 misha 19: #include "ltdl.h"
1.1 misha 20:
1.73 ! moko 21: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.72 2024/09/13 04:01:22 moko Exp $";
1.13 moko 22:
1.1 misha 23: class MCurl: public Methoded {
24: public:
25: MCurl();
26: };
27:
28: // global variables
29:
1.36 moko 30: DECLARE_CLASS_VAR(curl, new MCurl);
1.1 misha 31:
32: #include "curl.h"
33:
34: typedef CURL *(*t_curl_easy_init)(); t_curl_easy_init f_curl_easy_init;
35: typedef CURLcode (*t_curl_easy_setopt)(CURL *, CURLoption option, ...); t_curl_easy_setopt f_curl_easy_setopt;
36: typedef CURLcode (*t_curl_easy_perform)(CURL *); t_curl_easy_perform f_curl_easy_perform;
37: typedef void (*t_curl_easy_cleanup)(CURL *); t_curl_easy_cleanup f_curl_easy_cleanup;
38: typedef const char *(*t_curl_easy_strerror)(CURLcode); t_curl_easy_strerror f_curl_easy_strerror;
1.4 misha 39: typedef CURLcode (*t_curl_easy_getinfo)(CURL *curl, CURLINFO info, ...); t_curl_easy_getinfo f_curl_easy_getinfo;
1.1 misha 40: typedef struct curl_slist *(*t_curl_slist_append)(struct curl_slist *,const char *); t_curl_slist_append f_curl_slist_append;
1.4 misha 41: typedef const char *(*t_curl_version)(); t_curl_version f_curl_version;
42: typedef CURLFORMcode (*t_curl_formadd)(struct curl_httppost **httppost, struct curl_httppost **last_post, ...); t_curl_formadd f_curl_formadd;
43: typedef void (*t_curl_formfree)(struct curl_httppost *form); t_curl_formfree f_curl_formfree;
1.1 misha 44:
45: #define GLINK(name) f_##name=(t_##name)lt_dlsym(handle, #name);
46: #define DLINK(name) GLINK(name) if(!f_##name) return "function " #name " was not found";
47:
1.14 moko 48: static const char *dlink(const char *dlopen_file_spec) {
1.28 moko 49: pa_dlinit();
1.1 misha 50:
51: lt_dlhandle handle=lt_dlopen(dlopen_file_spec);
52:
53: if(!handle){
54: if(const char* result=lt_dlerror())
55: return result;
1.73 ! moko 56: return "cannot open the dynamic link module";
1.1 misha 57: }
58:
59: DLINK(curl_easy_init);
60: DLINK(curl_easy_cleanup);
1.4 misha 61: DLINK(curl_version);
1.1 misha 62: DLINK(curl_easy_setopt);
63: DLINK(curl_easy_perform);
64: DLINK(curl_easy_strerror);
1.4 misha 65: DLINK(curl_easy_getinfo);
1.1 misha 66: DLINK(curl_slist_append);
1.4 misha 67: DLINK(curl_formadd);
68: DLINK(curl_formfree);
1.1 misha 69: return 0;
70: }
71:
72:
1.55 moko 73: struct ParserOptions : public PA_Allocated {
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:
1.60 moko 85: // if response content-length check required
86: bool no_body;
87: // stuff to walkaround curl request content-length bugs
1.57 moko 88: bool is_post;
89: bool has_content_length;
90:
1.60 moko 91: 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 92: ~ParserOptions() {
93: f_curl_formfree(f_post);
1.19 moko 94: if(f_stderr)
95: fclose(f_stderr);
1.4 misha 96: }
1.55 moko 97:
1.1 misha 98: };
99:
1.9 moko 100: // using TLS instead of keeping variables in request
101: THREAD_LOCAL CURL *fcurl = 0;
102: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 103:
104: static CURL *curl(){
105: if(!fcurl)
106: throw Exception("curl", 0, "outside of 'session' operator");
107: return fcurl;
108: }
109:
110: static ParserOptions &options(){
111: if(!foptions)
112: throw Exception("curl", 0, "outside of 'session' operator");
113: return *foptions;
114: }
115:
116: // using temporal object scheme to garanty cleanup call
117: class Temp_curl {
1.4 misha 118: CURL *saved_curl;
119: ParserOptions *saved_options;
1.66 moko 120:
121: // every TLS should be referenced elsewhere, or GC will collect it
122: CURL *thread_curl;
123: ParserOptions *thread_options;
1.1 misha 124: public:
1.4 misha 125: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.66 moko 126: thread_curl = fcurl = f_curl_easy_init();
127: thread_options = foptions = new ParserOptions();
1.27 moko 128: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
1.1 misha 129: }
1.56 moko 130:
1.1 misha 131: ~Temp_curl() {
132: f_curl_easy_cleanup(fcurl);
133: fcurl = saved_curl;
134: delete foptions;
135: foptions = saved_options;
136: }
137: };
138:
139: bool curl_linked = false;
1.41 moko 140: const char *curl_status = 0;
1.29 moko 141: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 142:
143: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
1.41 moko 144: if(!curl_linked)
1.1 misha 145: curl_status=dlink(curl_library);
146:
147: if(curl_status == 0){
1.41 moko 148: curl_linked=true;
1.1 misha 149: Temp_curl temp_curl;
150: action(r,params);
151: } else {
1.69 moko 152: const char *hint=strcmp(curl_library, "libcurl" LT_MODULE_EXT) ? "" : " (at first call ^curl:options[ $.library[correct.libcurl" LT_MODULE_EXT ".name] ])";
153: throw Exception("curl", 0, "failed to load curl library %s%s", curl_status, hint);
1.1 misha 154: }
155: }
156:
157: static void _curl_session_action(Request& r, MethodParams& params){
158: Value& body_code=params.as_junction(0, "body must be code");
159: r.process_write(body_code);
160: }
161:
162: static void _curl_session(Request& r, MethodParams& params){
163: temp_curl(_curl_session_action, r, params);
164: }
165:
1.5 misha 166: static void _curl_version_action(Request& r, MethodParams& ){
1.46 moko 167: r.write(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
1.4 misha 168: }
169:
170: static void _curl_version(Request& r, MethodParams& params){
171: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
172: }
1.1 misha 173:
1.55 moko 174: struct CurlOption : public PA_Allocated{
1.1 misha 175:
176: enum OptionType {
177: CURL_STRING,
178: CURL_URLENCODE, // url-encoded string
1.4 misha 179: CURL_URL,
1.1 misha 180: CURL_INT,
1.60 moko 181: CURL_NO_BODY,
1.1 misha 182: CURL_POST,
1.57 moko 183: CURL_POSTFIELDS,
1.4 misha 184: CURL_FORM,
1.1 misha 185: CURL_HEADERS,
186: CURL_FILE,
1.15 moko 187: CURL_STDERR,
1.56 moko 188: CURL_HTTP_VERSION,
1.1 misha 189: PARSER_LIBRARY,
190: PARSER_NAME,
191: PARSER_CONTENT_TYPE,
192: PARSER_MODE,
1.4 misha 193: PARSER_CHARSET,
194: PARSER_RESPONSE_CHARSET
1.1 misha 195: };
196:
197: CURLoption id;
198: OptionType type;
199: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
200: };
201:
202: class CurlOptionHash: public HashString<CurlOption*> {
203: public:
204: CurlOptionHash() {
205: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
206: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 207: CURL_OPT(CURL_URL, URL);
1.1 misha 208: CURL_OPT(CURL_STRING, INTERFACE);
209: CURL_OPT(CURL_INT, LOCALPORT);
210: CURL_OPT(CURL_INT, PORT);
1.4 misha 211:
1.15 moko 212: CURL_OPT(CURL_INT, VERBOSE);
213: CURL_OPT(CURL_STDERR, STDERR);
214: CURL_OPT(CURL_INT, MAXFILESIZE);
215:
1.1 misha 216: CURL_OPT(CURL_INT, HTTPAUTH);
217: CURL_OPT(CURL_STRING, USERPWD);
218:
219: CURL_OPT(CURL_STRING, USERNAME);
220: CURL_OPT(CURL_STRING, PASSWORD);
221:
1.4 misha 222: CURL_OPT(CURL_URLENCODE, USERAGENT);
223: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 224: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 225:
1.1 misha 226: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 227: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
228:
1.1 misha 229: CURL_OPT(CURL_INT, FOLLOWLOCATION);
230: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 231: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 232:
1.57 moko 233: CURL_OPT(CURL_POST, POST);
1.1 misha 234: CURL_OPT(CURL_INT, HTTPGET);
1.60 moko 235: CURL_OPT(CURL_NO_BODY, NOBODY);
1.4 misha 236: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 237:
1.57 moko 238: CURL_OPT(CURL_POSTFIELDS, POSTFIELDS); // hopefully is safe too
239: CURL_OPT(CURL_POSTFIELDS, COPYPOSTFIELDS);
1.4 misha 240: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 241:
242: CURL_OPT(CURL_HEADERS, HTTPHEADER);
243: CURL_OPT(CURL_URLENCODE, COOKIE);
244: CURL_OPT(CURL_URLENCODE, COOKIELIST);
245: CURL_OPT(CURL_INT, COOKIESESSION);
246:
247: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
248: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
249: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
250:
1.4 misha 251: CURL_OPT(CURL_INT, MAXREDIRS);
252: CURL_OPT(CURL_INT, POSTREDIR);
253:
254: CURL_OPT(CURL_STRING, RANGE);
255:
1.1 misha 256: CURL_OPT(CURL_INT, TIMEOUT);
257: CURL_OPT(CURL_INT, TIMEOUT_MS);
258: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
259: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
260: CURL_OPT(CURL_INT, MAXCONNECTS);
261:
1.4 misha 262: CURL_OPT(CURL_STRING, PROXY);
263: CURL_OPT(CURL_INT, PROXYPORT);
264: CURL_OPT(CURL_INT, PROXYTYPE);
265: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
266: CURL_OPT(CURL_STRING, PROXYUSERPWD);
267: CURL_OPT(CURL_INT, PROXYAUTH);
268:
1.1 misha 269: CURL_OPT(CURL_INT, FRESH_CONNECT);
270: CURL_OPT(CURL_INT, FORBID_REUSE);
271: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
272: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 273: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 274:
275: CURL_OPT(CURL_FILE, SSLCERT);
276: CURL_OPT(CURL_STRING, SSLCERTTYPE);
277: CURL_OPT(CURL_FILE, SSLKEY);
278: CURL_OPT(CURL_STRING, SSLKEYTYPE);
279: CURL_OPT(CURL_STRING, KEYPASSWD);
280: CURL_OPT(CURL_STRING, SSLENGINE);
281: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
282:
283: CURL_OPT(CURL_FILE, ISSUERCERT);
284: CURL_OPT(CURL_FILE, CRLFILE);
285:
286: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 287: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 288: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
289: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
290: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
291: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
1.43 moko 292: CURL_OPT(CURL_INT, SSLVERSION);
1.56 moko 293: CURL_OPT(CURL_HTTP_VERSION, HTTP_VERSION);
1.1 misha 294:
295: PARSER_OPT(PARSER_LIBRARY, "library");
296: PARSER_OPT(PARSER_NAME, "name");
297: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
298: PARSER_OPT(PARSER_MODE, "mode");
299: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 300: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 301: }
302:
303: } *curl_options=0;
304:
1.55 moko 305: struct CurlInfo : public PA_Allocated{
1.32 moko 306:
307: enum OptionType {
308: CURL_STRING,
309: CURL_INT,
1.56 moko 310: CURL_DOUBLE,
311: CURL_HTTP_VERSION
1.32 moko 312: };
313:
314: CURLINFO id;
315: OptionType type;
316: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
317: };
318:
1.61 moko 319: class CurlInfoHash: public OrderedHashString<CurlInfo*> {
1.32 moko 320: public:
321: CurlInfoHash() {
322: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
1.61 moko 323: CURL_INF(CURL_STRING, SCHEME);
324: CURL_INF(CURL_HTTP_VERSION, HTTP_VERSION);
325: CURL_INF(CURL_STRING, EFFECTIVE_URL);
326: CURL_INF(CURL_STRING, CONTENT_TYPE);
327: CURL_INF(CURL_INT, RESPONSE_CODE);
328: CURL_INF(CURL_INT, OS_ERRNO);
329:
330: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
1.32 moko 331: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
1.61 moko 332: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
333: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
1.32 moko 334: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
1.61 moko 335: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
336:
1.32 moko 337: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
338: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
339: CURL_INF(CURL_INT, HEADER_SIZE);
1.61 moko 340: CURL_INF(CURL_INT, REQUEST_SIZE);
341: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
342: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
343: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
344: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
345:
1.32 moko 346: CURL_INF(CURL_INT, NUM_CONNECTS);
347: CURL_INF(CURL_STRING, PRIMARY_IP);
1.61 moko 348: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
1.32 moko 349: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
350: CURL_INF(CURL_INT, REDIRECT_COUNT);
351: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
352: CURL_INF(CURL_STRING, REDIRECT_URL);
353: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
354: }
355:
356: } *curl_infos=0;
357:
1.1 misha 358: static const char *curl_urlencode(const String &s, Request& r){
359: if(options().charset){
360: Temp_client_charset temp(r.charsets, *options().charset);
361: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
362: } else
363: return s.untaint_cstr(String::L_URI);
364: }
365:
366: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
367: struct curl_slist *slist=NULL;
368:
369: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
370: String header =
1.10 moko 371: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 372: << ": "
1.10 moko 373: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 374:
375: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
376: }
377: return slist;
378: }
379:
1.4 misha 380: static const char* curl_transcode(const String &s, Request& r){
381: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
382: }
383:
384: static void curl_form(HashStringValue *value_hash, Request& r){
385: struct curl_httppost *f_last=0;
386: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
387: const char *key = curl_transcode(String(i.key().cstr()), r);
388: if(const String* svalue = i.value()->get_string()){
389: // string
390: f_curl_formadd(&options().f_post, &f_last,
391: CURLFORM_PTRNAME, key,
392: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
393: CURLFORM_END);
394: } else if(Table* tvalue = i.value()->get_table()){
395: // table
396: for(size_t t = 0; t < tvalue->count(); t++) {
397: f_curl_formadd(&options().f_post, &f_last,
398: CURLFORM_PTRNAME, key,
399: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
400: CURLFORM_END);
401: }
1.72 moko 402: } else if(VFile* fvalue=dynamic_cast<VFile *>(i.value())){
1.4 misha 403: // file
404: f_curl_formadd(&options().f_post, &f_last,
405: CURLFORM_PTRNAME, key,
406: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
407: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
408: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
409: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
410: CURLFORM_END);
411: } else {
1.56 moko 412: 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 413: }
414: }
415: }
416:
1.18 moko 417: static const char *curl_check_file(const String &file_spec){
418: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
419: struct stat finfo;
1.49 moko 420: if(pa_stat(file_spec_cstr, &finfo)==0)
1.18 moko 421: check_safe_mode(finfo, file_spec, file_spec_cstr);
422: return file_spec_cstr;
423: }
424:
1.56 moko 425: static long curl_http_version(const String &name){
426: if(name.is_empty()) return CURL_HTTP_VERSION_NONE;
427:
428: if(name == "1.0") return CURL_HTTP_VERSION_1_0;
429: if(name == "1.1") return CURL_HTTP_VERSION_1_1;
430: if(name == "2") return CURL_HTTP_VERSION_2;
431: if(name == "2.0") return CURL_HTTP_VERSION_2_0;
432:
433: const char *sname = str_upper(name.cstr());
434: if(!strcmp(sname,"2TLS")) return CURL_HTTP_VERSION_2TLS;
435: if(!strcmp(sname,"2ONLY")) return CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE;
436: throw Exception("curl", &name, "invalid http_version option value");
437: }
438:
439: static const char *curl_http_version_name(long value){
440: if(value == CURL_HTTP_VERSION_NONE) return "none";
441: if(value == CURL_HTTP_VERSION_1_0) return "1.0";
442: if(value == CURL_HTTP_VERSION_1_1) return "1.1";
443: if(value == CURL_HTTP_VERSION_2) return "2";
444: throw Exception("curl", 0, "invalid http version '%d' in info", value);
445: }
446:
1.1 misha 447: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
448: CurlOption *opt=curl_options->get(key);
449:
450: if(opt==0)
451: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
452:
453: CURLcode res = CURLE_OK;
1.44 moko 454: Value &v=r.process(*value);
1.1 misha 455:
456: switch (opt->type){
457: case CurlOption::CURL_STRING:{
458: // string curl option
459: const char *value_str=v.as_string().cstr();
460: res=f_curl_easy_setopt(curl(), opt->id, value_str);
461: break;
462: }
463: case CurlOption::CURL_URLENCODE:{
464: // url-encoded string curl option
465: const char *value_str=curl_urlencode(v.as_string(), r);
466: res=f_curl_easy_setopt(curl(), opt->id, value_str);
467: break;
468: }
1.4 misha 469: case CurlOption::CURL_URL:{
470: // url-encoded string curl_url option
1.5 misha 471: const String url = v.as_string();
472: if(!url.starts_with("http://") && !url.starts_with("https://"))
473: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 474: options().url=curl_urlencode(url, r);
475: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 476: break;
477: }
1.1 misha 478: case CurlOption::CURL_INT:{
1.2 misha 479: // integer curl option
480: long value_int=(long)v.as_double();
1.1 misha 481: res=f_curl_easy_setopt(curl(), opt->id, value_int);
482: break;
483: }
1.60 moko 484: case CurlOption::CURL_NO_BODY:{
485: // integer curl option
486: long value_int=(long)v.as_double();
487: res=f_curl_easy_setopt(curl(), opt->id, value_int);
488: options().no_body=value_int != 0;
489: break;
490: }
1.1 misha 491: case CurlOption::CURL_POST:{
1.57 moko 492: // integer curl option
493: long value_int=(long)v.as_double();
494: res=f_curl_easy_setopt(curl(), opt->id, value_int);
495: options().is_post=value_int != 0;
496: break;
497: }
498: case CurlOption::CURL_POSTFIELDS:{
1.1 misha 499: // http post curl option
500: if(v.get_string()){
1.2 misha 501: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 502: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
503: } else {
1.68 moko 504: VFile *file=v.as_vfile();
1.2 misha 505: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 506: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
507: }
1.57 moko 508: options().has_content_length=true;
1.1 misha 509: break;
510: }
1.4 misha 511: case CurlOption::CURL_FORM:{
1.48 moko 512: HashStringValue *value_hash = v.as_hash("failed to set option 'httppost': value");
1.4 misha 513: if(value_hash){
514: curl_form(value_hash, r);
1.48 moko 515: } else {
1.57 moko 516: if(options().f_post)
517: f_curl_formfree(options().f_post);
1.4 misha 518: options().f_post = 0;
1.5 misha 519: }
1.4 misha 520: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
1.57 moko 521: options().has_content_length=true;
1.4 misha 522: break;
523: }
1.1 misha 524: case CurlOption::CURL_HEADERS:{
525: // http headers curl option
1.48 moko 526: HashStringValue *value_hash=v.as_hash("failed to set option 'httpheader': value");
1.1 misha 527: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
528: break;
529: }
530: case CurlOption::CURL_FILE:{
531: // file-spec curl option
1.65 moko 532: const char *file_spec_cstr=curl_check_file(r.full_disk_path(v.as_string()));
1.18 moko 533: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 534: break;
535: }
1.16 moko 536: case CurlOption::CURL_STDERR:{
537: // verbose output redirection from stderr to file curl option
1.65 moko 538: const char *file_spec_cstr=curl_check_file(r.full_disk_path(v.as_string()));
1.53 moko 539: FILE *f_stderr=options().f_stderr=pa_fopen(file_spec_cstr, "wt");
1.19 moko 540: if (f_stderr){
541: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 542: } else {
1.18 moko 543: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 544: }
545: break;
546: }
1.56 moko 547: case CurlOption::CURL_HTTP_VERSION:{
548: // http protocol version name curl option
549: long value_int=curl_http_version(v.as_string());
550: res=f_curl_easy_setopt(curl(), opt->id, value_int);
551: break;
552: }
1.1 misha 553: case CurlOption::PARSER_LIBRARY:{
554: // 'library' parser option
1.41 moko 555: if(!curl_linked){
1.1 misha 556: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
557: } else
1.16 moko 558: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 559: break;
560: }
561: case CurlOption::PARSER_NAME:{
562: // 'name' parser option
1.12 misha 563: options().filename=&v.as_string();
1.1 misha 564: break;
565: }
566: case CurlOption::PARSER_CONTENT_TYPE:{
567: // 'content-type' parser option
568: options().content_type=&v.as_string();
569: break;
570: }
571: case CurlOption::PARSER_MODE:{
572: // 'mode' parser option
1.12 misha 573: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 574: break;
575: }
576: case CurlOption::PARSER_CHARSET:{
1.30 moko 577: // 'charset' parser option should be processed before other options
1.1 misha 578: break;
579: }
1.4 misha 580: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 581: // 'response-charset' parser option
1.42 moko 582: options().response_charset=&pa_charsets.get(v.as_string());
1.4 misha 583: break;
584: }
1.1 misha 585: }
586:
587: if(res != CURLE_OK)
588: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
589: }
590:
1.3 misha 591: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 592: if(curl_options==0)
593: curl_options=new CurlOptionHash();
594:
1.30 moko 595: if(HashStringValue* options_hash=params.as_hash(0)){
596: if(Value* value=options_hash->get("charset")){
597: // charset should be handled first as params may require transcode
1.44 moko 598: Value &v=r.process(*value);
1.42 moko 599: options().charset=&pa_charsets.get(v.as_string());
1.30 moko 600: }
601: options_hash->for_each<Request&>(curl_setopt, r);
602: }
1.1 misha 603: }
604:
1.32 moko 605: #define CURL_GETINFO(arg) \
606: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
1.58 moko 607: if (fail_on_error) \
608: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
609: return 0; \
1.32 moko 610: }
611:
1.58 moko 612: static Value *curl_getinfo(const String::Body &key, CurlInfo *info, bool fail_on_error=false) {
1.32 moko 613: CURLcode res;
614: switch (info->type){
615: case CurlInfo::CURL_STRING:{
616: char *str=0;
617: CURL_GETINFO(str);
1.33 moko 618: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 619: }
620: case CurlInfo::CURL_INT:{
621: long l=0;
622: CURL_GETINFO(l);
623: return new VInt(l);
624: }
625: case CurlInfo::CURL_DOUBLE:{
626: double d=0;
627: CURL_GETINFO(d);
628: return new VDouble(d);
629: }
1.56 moko 630: case CurlInfo::CURL_HTTP_VERSION:{
631: long l=0;
632: CURL_GETINFO(l);
633: return new VString(*new String(curl_http_version_name(l), String::L_TAINTED));
634: }
1.32 moko 635: }
636: return VVoid::get();
637: }
638:
639: static void _curl_info(Request& r, MethodParams& params){
640: if(curl_infos==0)
641: curl_infos=new CurlInfoHash();
642: if(params.count()==1){
643: const String &name=params.as_string(0, "name must be string");
1.58 moko 644: CurlInfo *info=curl_infos->get(name);
645: if(info==0)
646: throw Exception("curl", 0, "called with invalid parameter '%s'", name.cstr());
1.59 moko 647: r.write(*curl_getinfo(name, info, true));
1.32 moko 648: } else {
649: VHash& result=*new VHash;
650: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.59 moko 651: Value *value=curl_getinfo(i.key(), i.value());
1.58 moko 652: if(value)
653: result.get_hash()->put(i.key(), value);
1.32 moko 654: }
1.46 moko 655: r.write(result);
1.32 moko 656: }
657: }
658:
1.1 misha 659: class Curl_buffer{
660: public:
661: char *buf;
662: size_t length;
663: size_t buf_size;
1.62 moko 664: HTTP_Headers& headers;
1.1 misha 665:
1.62 moko 666: Curl_buffer(HTTP_Headers& aheaders) : buf((char *)pa_malloc_atomic(MAX_STRING)), length(0), buf_size(MAX_STRING-1), headers(aheaders){}
1.50 moko 667:
668: void resize(size_t size){
669: buf_size=size;
670: buf=(char *)pa_realloc(buf, size+1);
671: }
1.1 misha 672: };
673:
674: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
675: if(result == 0)
676: return 0;
677:
678: size=size*nmemb;
679: if(size>0){
1.50 moko 680: size_t buf_required = result->length + size;
681: if(buf_required > result->buf_size)
1.51 moko 682: result->resize(buf_required <= result->headers.content_length ? (size_t)result->headers.content_length : result->buf_size*2 + size);
1.1 misha 683: memcpy(result->buf+result->length, data, size);
684: result->length += size;
685: }
686: return size;
687: }
688:
1.62 moko 689: static int curl_header(char *data, size_t size, size_t nmemb, HTTP_Headers *result){
1.1 misha 690: if(result == 0)
691: return 0;
692:
693: size=size*nmemb;
694: if(size>0){
1.47 moko 695: char *header=pa_strdup(data, size);
696: if(!pa_strncasecmp(header, "HTTP/") && !strchr(header, ':')){
697: // response code, clearing possible headers from previous requests
698: result->clear();
699: } else {
700: result->add_header(header);
1.60 moko 701: if(result->content_length>pa_file_size_limit && !options().no_body)
1.50 moko 702: return 0;
1.47 moko 703: }
1.1 misha 704: }
705: return size;
706: }
707:
708: #define CURL_SETOPT(option, arg, message) \
709: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
710: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
711: }
712:
713: static void _curl_load_action(Request& r, MethodParams& params){
714: if(params.count()==1)
1.3 misha 715: _curl_options(r, params);
1.1 misha 716:
717: CURLcode res;
718:
719: // we need a container for headers as VFile fields can be put only after VFile.set
1.62 moko 720: HTTP_Headers response;
1.1 misha 721: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 722: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 723:
1.50 moko 724: Curl_buffer body(response);
725: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
726: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
727:
1.57 moko 728: if(options().is_post && !options().has_content_length){
729: // libcurl bug walkaround. Prior to 7.38 (Debian Jessie) curl passed Content-length: -1
730: // after that no Content-length header is passed, that hangs request to nginx.
731: CURL_SETOPT(CURLOPT_POSTFIELDSIZE, 0, "post content-length");
732: }
733:
1.63 moko 734: ALTER_EXCEPTION_SOURCE(res=f_curl_easy_perform(curl()), new String(options().url));
735: if(res != CURLE_OK){
1.15 moko 736: const char *ex_type = 0;
1.4 misha 737: switch(res){
738: case CURLE_OPERATION_TIMEDOUT:
739: ex_type = "curl.timeout"; break;
740: case CURLE_COULDNT_RESOLVE_HOST:
741: ex_type = "curl.host"; break;
742: case CURLE_COULDNT_CONNECT:
743: ex_type = "curl.connect"; break;
744: case CURLE_HTTP_RETURNED_ERROR:
745: ex_type = "curl.status"; break;
746: case CURLE_SSL_CONNECT_ERROR:
747: case CURLE_SSL_CERTPROBLEM:
748: case CURLE_SSL_CIPHER:
749: case CURLE_SSL_CACERT:
750: case CURLE_SSL_ENGINE_INITFAILED:
751: ex_type = "curl.ssl"; break;
1.50 moko 752: case CURLE_WRITE_ERROR:
1.64 moko 753: check_file_size(response.content_length, new String(options().url)); break;
1.31 moko 754: default: break;
1.4 misha 755: }
1.63 moko 756: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), new String(options().url), "%s", f_curl_easy_strerror(res));
1.1 misha 757: }
758:
759: // assure trailing zero
760: body.buf[body.length]=0;
761:
1.4 misha 762: VFile& result=*new VFile;
763:
1.8 moko 764: Charset *asked_charset = options().response_charset;
1.38 moko 765: if (!asked_charset && !response.content_type.is_empty())
766: asked_charset=detect_charset(response.content_type.cstr());
767:
768: if(options().is_text)
1.42 moko 769: asked_charset=pa_charsets.checkBOM(body.buf, body.length, asked_charset);
1.38 moko 770:
771: if (!asked_charset)
772: asked_charset = options().charset;
1.1 misha 773:
774: if(options().is_text && asked_charset != 0){
775: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
776: body.buf=(char *)c.str;
777: body.length=c.length;
778: }
779:
1.38 moko 780: 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 781: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 782:
1.39 moko 783: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 784:
1.4 misha 785: long http_status = 0;
786: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
787: result.fields().put("status", new VInt(http_status));
788: }
789:
1.38 moko 790: VHash* vtables=new VHash;
791: result.fields().put("tables", vtables);
1.23 misha 792:
1.71 moko 793: for(Array_iterator<HTTP_Headers::Header> i(response.headers); i; ){
1.62 moko 794: HTTP_Headers::Header header=i.next();
1.24 misha 795:
796: if(asked_charset)
1.38 moko 797: header.transcode(*asked_charset, r.charsets.source());
798:
799: String &header_value=*new String(header.value, String::L_TAINTED);
800:
801: tables_update(vtables->hash(), header.name, header_value);
802: result.fields().put(header.name, new VString(header_value));
1.1 misha 803: }
804:
1.38 moko 805: // filling $.cookies
806: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
807: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 808:
1.46 moko 809: r.write(result);
1.1 misha 810: }
811:
812: static void _curl_load(Request& r, MethodParams& params){
813: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
814: }
815:
816: // constructor
817: MCurl::MCurl(): Methoded("curl") {
818: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 819: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 820: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 821: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 822: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 823: }
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