Annotation of parser3/src/classes/curl.C, revision 1.57
1.1 misha 1: /** @file
2: Parser: @b curl parser class.
3:
1.54 moko 4: Copyright (c) 2001-2017 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:
1.57 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.56 2017/11/26 21:24:07 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:
1.57 ! moko 84: // stuff to walkaround curl content-length bugs
! 85: bool is_post;
! 86: bool has_content_length;
! 87:
! 88: ParserOptions() : filename(0), content_type(0), is_text(true), charset(0), response_charset(0), url(0), f_post(0), f_stderr(0), is_post(false), has_content_length(false){}
1.4 misha 89: ~ParserOptions() {
90: f_curl_formfree(f_post);
1.19 moko 91: if(f_stderr)
92: fclose(f_stderr);
1.4 misha 93: }
1.55 moko 94:
1.1 misha 95: };
96:
1.9 moko 97: // using TLS instead of keeping variables in request
98: THREAD_LOCAL CURL *fcurl = 0;
99: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 100:
101: static CURL *curl(){
102: if(!fcurl)
103: throw Exception("curl", 0, "outside of 'session' operator");
104: return fcurl;
105: }
106:
107: static ParserOptions &options(){
108: if(!foptions)
109: throw Exception("curl", 0, "outside of 'session' operator");
110: return *foptions;
111: }
112:
113: // using temporal object scheme to garanty cleanup call
114: class Temp_curl {
1.4 misha 115: CURL *saved_curl;
116: ParserOptions *saved_options;
1.1 misha 117: public:
1.4 misha 118: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.5 misha 119: fcurl = f_curl_easy_init();
120: foptions = new ParserOptions();
1.27 moko 121: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
1.1 misha 122: }
1.56 moko 123:
1.1 misha 124: ~Temp_curl() {
125: f_curl_easy_cleanup(fcurl);
126: fcurl = saved_curl;
127: delete foptions;
128: foptions = saved_options;
129: }
130: };
131:
132: bool curl_linked = false;
1.41 moko 133: const char *curl_status = 0;
1.29 moko 134: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 135:
136: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
1.41 moko 137: if(!curl_linked)
1.1 misha 138: curl_status=dlink(curl_library);
139:
140: if(curl_status == 0){
1.41 moko 141: curl_linked=true;
1.1 misha 142: Temp_curl temp_curl;
143: action(r,params);
144: } else {
145: throw Exception("curl", 0, "failed to load curl library %s: %s", curl_library, curl_status);
146: }
147: }
148:
149: static void _curl_session_action(Request& r, MethodParams& params){
150: Value& body_code=params.as_junction(0, "body must be code");
151: r.process_write(body_code);
152: }
153:
154: static void _curl_session(Request& r, MethodParams& params){
155: temp_curl(_curl_session_action, r, params);
156: }
157:
1.5 misha 158: static void _curl_version_action(Request& r, MethodParams& ){
1.46 moko 159: r.write(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
1.4 misha 160: }
161:
162: static void _curl_version(Request& r, MethodParams& params){
163: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
164: }
1.1 misha 165:
1.55 moko 166: struct CurlOption : public PA_Allocated{
1.1 misha 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,
1.57 ! moko 174: CURL_POSTFIELDS,
1.4 misha 175: CURL_FORM,
1.1 misha 176: CURL_HEADERS,
177: CURL_FILE,
1.15 moko 178: CURL_STDERR,
1.56 moko 179: CURL_HTTP_VERSION,
1.1 misha 180: PARSER_LIBRARY,
181: PARSER_NAME,
182: PARSER_CONTENT_TYPE,
183: PARSER_MODE,
1.4 misha 184: PARSER_CHARSET,
185: PARSER_RESPONSE_CHARSET
1.1 misha 186: };
187:
188: CURLoption id;
189: OptionType type;
190: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
191: };
192:
193: class CurlOptionHash: public HashString<CurlOption*> {
194: public:
195: CurlOptionHash() {
196: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
197: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 198: CURL_OPT(CURL_URL, URL);
1.1 misha 199: CURL_OPT(CURL_STRING, INTERFACE);
200: CURL_OPT(CURL_INT, LOCALPORT);
201: CURL_OPT(CURL_INT, PORT);
1.4 misha 202:
1.15 moko 203: CURL_OPT(CURL_INT, VERBOSE);
204: CURL_OPT(CURL_STDERR, STDERR);
205: CURL_OPT(CURL_INT, MAXFILESIZE);
206:
1.1 misha 207: CURL_OPT(CURL_INT, HTTPAUTH);
208: CURL_OPT(CURL_STRING, USERPWD);
209:
210: CURL_OPT(CURL_STRING, USERNAME);
211: CURL_OPT(CURL_STRING, PASSWORD);
212:
1.4 misha 213: CURL_OPT(CURL_URLENCODE, USERAGENT);
214: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 215: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 216:
1.1 misha 217: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 218: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
219:
1.1 misha 220: CURL_OPT(CURL_INT, FOLLOWLOCATION);
221: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 222: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 223:
1.57 ! moko 224: CURL_OPT(CURL_POST, POST);
1.1 misha 225: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 226: CURL_OPT(CURL_INT, NOBODY);
227: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 228:
1.57 ! moko 229: CURL_OPT(CURL_POSTFIELDS, POSTFIELDS); // hopefully is safe too
! 230: CURL_OPT(CURL_POSTFIELDS, COPYPOSTFIELDS);
1.4 misha 231: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 232:
233: CURL_OPT(CURL_HEADERS, HTTPHEADER);
234: CURL_OPT(CURL_URLENCODE, COOKIE);
235: CURL_OPT(CURL_URLENCODE, COOKIELIST);
236: CURL_OPT(CURL_INT, COOKIESESSION);
237:
238: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
239: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
240: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
241:
1.4 misha 242: CURL_OPT(CURL_INT, MAXREDIRS);
243: CURL_OPT(CURL_INT, POSTREDIR);
244:
245: CURL_OPT(CURL_STRING, RANGE);
246:
1.1 misha 247: CURL_OPT(CURL_INT, TIMEOUT);
248: CURL_OPT(CURL_INT, TIMEOUT_MS);
249: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
250: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
251: CURL_OPT(CURL_INT, MAXCONNECTS);
252:
1.4 misha 253: CURL_OPT(CURL_STRING, PROXY);
254: CURL_OPT(CURL_INT, PROXYPORT);
255: CURL_OPT(CURL_INT, PROXYTYPE);
256: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
257: CURL_OPT(CURL_STRING, PROXYUSERPWD);
258: CURL_OPT(CURL_INT, PROXYAUTH);
259:
1.1 misha 260: CURL_OPT(CURL_INT, FRESH_CONNECT);
261: CURL_OPT(CURL_INT, FORBID_REUSE);
262: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
263: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 264: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 265:
266: CURL_OPT(CURL_FILE, SSLCERT);
267: CURL_OPT(CURL_STRING, SSLCERTTYPE);
268: CURL_OPT(CURL_FILE, SSLKEY);
269: CURL_OPT(CURL_STRING, SSLKEYTYPE);
270: CURL_OPT(CURL_STRING, KEYPASSWD);
271: CURL_OPT(CURL_STRING, SSLENGINE);
272: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
273:
274: CURL_OPT(CURL_FILE, ISSUERCERT);
275: CURL_OPT(CURL_FILE, CRLFILE);
276:
277: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 278: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 279: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
280: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
281: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
282: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
1.43 moko 283: CURL_OPT(CURL_INT, SSLVERSION);
1.56 moko 284: CURL_OPT(CURL_HTTP_VERSION, HTTP_VERSION);
1.1 misha 285:
286: PARSER_OPT(PARSER_LIBRARY, "library");
287: PARSER_OPT(PARSER_NAME, "name");
288: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
289: PARSER_OPT(PARSER_MODE, "mode");
290: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 291: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 292: }
293:
294: } *curl_options=0;
295:
1.55 moko 296: struct CurlInfo : public PA_Allocated{
1.32 moko 297:
298: enum OptionType {
299: CURL_STRING,
300: CURL_INT,
1.56 moko 301: CURL_DOUBLE,
302: CURL_HTTP_VERSION
1.32 moko 303: };
304:
305: CURLINFO id;
306: OptionType type;
307: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
308: };
309:
310: class CurlInfoHash: public HashString<CurlInfo*> {
311: public:
312: CurlInfoHash() {
313: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
314: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
315: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
316: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
317: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
318: CURL_INF(CURL_STRING, CONTENT_TYPE);
319: CURL_INF(CURL_STRING, EFFECTIVE_URL);
320: CURL_INF(CURL_INT, HEADER_SIZE);
321: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
322: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
323: CURL_INF(CURL_INT, NUM_CONNECTS);
324: CURL_INF(CURL_INT, OS_ERRNO);
325: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
326: CURL_INF(CURL_STRING, PRIMARY_IP);
327: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
328: CURL_INF(CURL_INT, REDIRECT_COUNT);
329: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
330: CURL_INF(CURL_STRING, REDIRECT_URL);
331: CURL_INF(CURL_INT, REQUEST_SIZE);
332: CURL_INF(CURL_INT, RESPONSE_CODE);
333: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
334: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
335: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
336: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
337: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
338: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
339: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
1.56 moko 340: CURL_INF(CURL_HTTP_VERSION, HTTP_VERSION);
341: CURL_INF(CURL_INT, PROTOCOL);
342: CURL_INF(CURL_STRING, SCHEME);
1.32 moko 343: }
344:
345: } *curl_infos=0;
346:
1.1 misha 347: static const char *curl_urlencode(const String &s, Request& r){
348: if(options().charset){
349: Temp_client_charset temp(r.charsets, *options().charset);
350: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
351: } else
352: return s.untaint_cstr(String::L_URI);
353: }
354:
355: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
356: struct curl_slist *slist=NULL;
357:
358: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
359: String header =
1.10 moko 360: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 361: << ": "
1.10 moko 362: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 363:
364: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
365: }
366: return slist;
367: }
368:
1.4 misha 369: static const char* curl_transcode(const String &s, Request& r){
370: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
371: }
372:
373: static void curl_form(HashStringValue *value_hash, Request& r){
374: struct curl_httppost *f_last=0;
375: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
376: const char *key = curl_transcode(String(i.key().cstr()), r);
377: if(const String* svalue = i.value()->get_string()){
378: // string
379: f_curl_formadd(&options().f_post, &f_last,
380: CURLFORM_PTRNAME, key,
381: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
382: CURLFORM_END);
383: } else if(Table* tvalue = i.value()->get_table()){
384: // table
385: for(size_t t = 0; t < tvalue->count(); t++) {
386: f_curl_formadd(&options().f_post, &f_last,
387: CURLFORM_PTRNAME, key,
388: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
389: CURLFORM_END);
390: }
391: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
392: // file
393: f_curl_formadd(&options().f_post, &f_last,
394: CURLFORM_PTRNAME, key,
395: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
396: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
397: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
398: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
399: CURLFORM_END);
400: } else {
1.56 moko 401: 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 402: }
403: }
404: }
405:
1.18 moko 406: static const char *curl_check_file(const String &file_spec){
407: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
408: struct stat finfo;
1.49 moko 409: if(pa_stat(file_spec_cstr, &finfo)==0)
1.18 moko 410: check_safe_mode(finfo, file_spec, file_spec_cstr);
411: return file_spec_cstr;
412: }
413:
1.56 moko 414: static long curl_http_version(const String &name){
415: if(name.is_empty()) return CURL_HTTP_VERSION_NONE;
416:
417: if(name == "1.0") return CURL_HTTP_VERSION_1_0;
418: if(name == "1.1") return CURL_HTTP_VERSION_1_1;
419: if(name == "2") return CURL_HTTP_VERSION_2;
420: if(name == "2.0") return CURL_HTTP_VERSION_2_0;
421:
422: const char *sname = str_upper(name.cstr());
423: if(!strcmp(sname,"2TLS")) return CURL_HTTP_VERSION_2TLS;
424: if(!strcmp(sname,"2ONLY")) return CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE;
425: throw Exception("curl", &name, "invalid http_version option value");
426: }
427:
428: static const char *curl_http_version_name(long value){
429: if(value == CURL_HTTP_VERSION_NONE) return "none";
430: if(value == CURL_HTTP_VERSION_1_0) return "1.0";
431: if(value == CURL_HTTP_VERSION_1_1) return "1.1";
432: if(value == CURL_HTTP_VERSION_2) return "2";
433: throw Exception("curl", 0, "invalid http version '%d' in info", value);
434: }
435:
1.1 misha 436: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
437: CurlOption *opt=curl_options->get(key);
438:
439: if(opt==0)
440: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
441:
442: CURLcode res = CURLE_OK;
1.44 moko 443: Value &v=r.process(*value);
1.1 misha 444:
445: switch (opt->type){
446: case CurlOption::CURL_STRING:{
447: // string curl option
448: const char *value_str=v.as_string().cstr();
449: res=f_curl_easy_setopt(curl(), opt->id, value_str);
450: break;
451: }
452: case CurlOption::CURL_URLENCODE:{
453: // url-encoded string curl option
454: const char *value_str=curl_urlencode(v.as_string(), r);
455: res=f_curl_easy_setopt(curl(), opt->id, value_str);
456: break;
457: }
1.4 misha 458: case CurlOption::CURL_URL:{
459: // url-encoded string curl_url option
1.5 misha 460: const String url = v.as_string();
461: if(!url.starts_with("http://") && !url.starts_with("https://"))
462: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 463: options().url=curl_urlencode(url, r);
464: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 465: break;
466: }
1.1 misha 467: case CurlOption::CURL_INT:{
1.2 misha 468: // integer curl option
469: long value_int=(long)v.as_double();
1.1 misha 470: res=f_curl_easy_setopt(curl(), opt->id, value_int);
471: break;
472: }
473: case CurlOption::CURL_POST:{
1.57 ! moko 474: // integer curl option
! 475: long value_int=(long)v.as_double();
! 476: res=f_curl_easy_setopt(curl(), opt->id, value_int);
! 477: options().is_post=value_int != 0;
! 478: break;
! 479: }
! 480: case CurlOption::CURL_POSTFIELDS:{
1.1 misha 481: // http post curl option
482: if(v.get_string()){
1.2 misha 483: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 484: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
485: } else {
486: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 487: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 488: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
489: }
1.57 ! moko 490: options().has_content_length=true;
1.1 misha 491: break;
492: }
1.4 misha 493: case CurlOption::CURL_FORM:{
1.48 moko 494: HashStringValue *value_hash = v.as_hash("failed to set option 'httppost': value");
1.4 misha 495: if(value_hash){
496: curl_form(value_hash, r);
1.48 moko 497: } else {
1.57 ! moko 498: if(options().f_post)
! 499: f_curl_formfree(options().f_post);
1.4 misha 500: options().f_post = 0;
1.5 misha 501: }
1.4 misha 502: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
1.57 ! moko 503: options().has_content_length=true;
1.4 misha 504: break;
505: }
1.1 misha 506: case CurlOption::CURL_HEADERS:{
507: // http headers curl option
1.48 moko 508: HashStringValue *value_hash=v.as_hash("failed to set option 'httpheader': value");
1.1 misha 509: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
510: break;
511: }
512: case CurlOption::CURL_FILE:{
513: // file-spec curl option
1.18 moko 514: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
515: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 516: break;
517: }
1.16 moko 518: case CurlOption::CURL_STDERR:{
519: // verbose output redirection from stderr to file curl option
1.18 moko 520: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.53 moko 521: FILE *f_stderr=options().f_stderr=pa_fopen(file_spec_cstr, "wt");
1.19 moko 522: if (f_stderr){
523: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 524: } else {
1.18 moko 525: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 526: }
527: break;
528: }
1.56 moko 529: case CurlOption::CURL_HTTP_VERSION:{
530: // http protocol version name curl option
531: long value_int=curl_http_version(v.as_string());
532: res=f_curl_easy_setopt(curl(), opt->id, value_int);
533: break;
534: }
1.1 misha 535: case CurlOption::PARSER_LIBRARY:{
536: // 'library' parser option
1.41 moko 537: if(!curl_linked){
1.1 misha 538: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
539: } else
1.16 moko 540: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 541: break;
542: }
543: case CurlOption::PARSER_NAME:{
544: // 'name' parser option
1.12 misha 545: options().filename=&v.as_string();
1.1 misha 546: break;
547: }
548: case CurlOption::PARSER_CONTENT_TYPE:{
549: // 'content-type' parser option
550: options().content_type=&v.as_string();
551: break;
552: }
553: case CurlOption::PARSER_MODE:{
554: // 'mode' parser option
1.12 misha 555: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 556: break;
557: }
558: case CurlOption::PARSER_CHARSET:{
1.30 moko 559: // 'charset' parser option should be processed before other options
1.1 misha 560: break;
561: }
1.4 misha 562: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 563: // 'response-charset' parser option
1.42 moko 564: options().response_charset=&pa_charsets.get(v.as_string());
1.4 misha 565: break;
566: }
1.1 misha 567: }
568:
569: if(res != CURLE_OK)
570: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
571: }
572:
1.3 misha 573: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 574: if(curl_options==0)
575: curl_options=new CurlOptionHash();
576:
1.30 moko 577: if(HashStringValue* options_hash=params.as_hash(0)){
578: if(Value* value=options_hash->get("charset")){
579: // charset should be handled first as params may require transcode
1.44 moko 580: Value &v=r.process(*value);
1.42 moko 581: options().charset=&pa_charsets.get(v.as_string());
1.30 moko 582: }
583: options_hash->for_each<Request&>(curl_setopt, r);
584: }
1.1 misha 585: }
586:
1.32 moko 587: #define CURL_GETINFO(arg) \
588: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
589: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
590: }
591:
1.34 moko 592: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
593: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 594: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
595:
596: CURLcode res;
597: switch (info->type){
598: case CurlInfo::CURL_STRING:{
599: char *str=0;
600: CURL_GETINFO(str);
1.33 moko 601: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 602: }
603: case CurlInfo::CURL_INT:{
604: long l=0;
605: CURL_GETINFO(l);
606: return new VInt(l);
607: }
608: case CurlInfo::CURL_DOUBLE:{
609: double d=0;
610: CURL_GETINFO(d);
611: return new VDouble(d);
612: }
1.56 moko 613: case CurlInfo::CURL_HTTP_VERSION:{
614: long l=0;
615: CURL_GETINFO(l);
616: return new VString(*new String(curl_http_version_name(l), String::L_TAINTED));
617: }
1.32 moko 618: }
619: return VVoid::get();
620: }
621:
622: static void _curl_info(Request& r, MethodParams& params){
623: if(curl_infos==0)
624: curl_infos=new CurlInfoHash();
625: if(params.count()==1){
626: const String &name=params.as_string(0, "name must be string");
1.46 moko 627: r.write(*curl_getinfo(name));
1.32 moko 628: } else {
629: VHash& result=*new VHash;
630: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 631: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 632: }
1.46 moko 633: r.write(result);
1.32 moko 634: }
635: }
636:
1.1 misha 637:
638: class Curl_buffer{
639: public:
640: char *buf;
641: size_t length;
642: size_t buf_size;
1.50 moko 643: ResponseHeaders& headers;
1.1 misha 644:
1.52 moko 645: Curl_buffer(ResponseHeaders& aheaders) : buf((char *)pa_malloc_atomic(MAX_STRING)), length(0), buf_size(MAX_STRING-1), headers(aheaders){}
1.50 moko 646:
647: void resize(size_t size){
648: buf_size=size;
649: buf=(char *)pa_realloc(buf, size+1);
650: }
1.1 misha 651: };
652:
653: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
654: if(result == 0)
655: return 0;
656:
657: size=size*nmemb;
658: if(size>0){
1.50 moko 659: size_t buf_required = result->length + size;
660: if(buf_required > result->buf_size)
1.51 moko 661: result->resize(buf_required <= result->headers.content_length ? (size_t)result->headers.content_length : result->buf_size*2 + size);
1.1 misha 662: memcpy(result->buf+result->length, data, size);
663: result->length += size;
664: }
665: return size;
666: }
667:
1.38 moko 668: static int curl_header(char *data, size_t size, size_t nmemb, ResponseHeaders *result){
1.1 misha 669: if(result == 0)
670: return 0;
671:
672: size=size*nmemb;
673: if(size>0){
1.47 moko 674: char *header=pa_strdup(data, size);
675: if(!pa_strncasecmp(header, "HTTP/") && !strchr(header, ':')){
676: // response code, clearing possible headers from previous requests
677: result->clear();
678: } else {
679: result->add_header(header);
1.50 moko 680: if(result->content_length>pa_file_size_limit)
681: return 0;
1.47 moko 682: }
1.1 misha 683: }
684: return size;
685: }
686:
687: #define CURL_SETOPT(option, arg, message) \
688: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
689: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
690: }
691:
692: static void _curl_load_action(Request& r, MethodParams& params){
693: if(params.count()==1)
1.3 misha 694: _curl_options(r, params);
1.1 misha 695:
696: CURLcode res;
697:
698: // we need a container for headers as VFile fields can be put only after VFile.set
1.38 moko 699: ResponseHeaders response;
1.1 misha 700: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 701: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 702:
1.50 moko 703: Curl_buffer body(response);
704: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
705: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
706:
1.57 ! moko 707: if(options().is_post && !options().has_content_length){
! 708: // libcurl bug walkaround. Prior to 7.38 (Debian Jessie) curl passed Content-length: -1
! 709: // after that no Content-length header is passed, that hangs request to nginx.
! 710: CURL_SETOPT(CURLOPT_POSTFIELDSIZE, 0, "post content-length");
! 711: }
! 712:
1.1 misha 713: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 714: const char *ex_type = 0;
1.4 misha 715: switch(res){
716: case CURLE_OPERATION_TIMEDOUT:
717: ex_type = "curl.timeout"; break;
718: case CURLE_COULDNT_RESOLVE_HOST:
719: ex_type = "curl.host"; break;
720: case CURLE_COULDNT_CONNECT:
721: ex_type = "curl.connect"; break;
722: case CURLE_HTTP_RETURNED_ERROR:
723: ex_type = "curl.status"; break;
724: case CURLE_SSL_CONNECT_ERROR:
725: case CURLE_SSL_CERTPROBLEM:
726: case CURLE_SSL_CIPHER:
727: case CURLE_SSL_CACERT:
728: case CURLE_SSL_ENGINE_INITFAILED:
729: ex_type = "curl.ssl"; break;
1.50 moko 730: case CURLE_WRITE_ERROR:
731: check_file_size(response.content_length, *new String(options().url)); break;
1.31 moko 732: default: break;
1.4 misha 733: }
1.38 moko 734: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), 0, "%s", f_curl_easy_strerror(res));
1.1 misha 735: }
736:
737: // assure trailing zero
738: body.buf[body.length]=0;
739:
1.4 misha 740: VFile& result=*new VFile;
741:
1.8 moko 742: Charset *asked_charset = options().response_charset;
1.38 moko 743: if (!asked_charset && !response.content_type.is_empty())
744: asked_charset=detect_charset(response.content_type.cstr());
745:
746: if(options().is_text)
1.42 moko 747: asked_charset=pa_charsets.checkBOM(body.buf, body.length, asked_charset);
1.38 moko 748:
749: if (!asked_charset)
750: asked_charset = options().charset;
1.1 misha 751:
752: if(options().is_text && asked_charset != 0){
753: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
754: body.buf=(char *)c.str;
755: body.length=c.length;
756: }
757:
1.38 moko 758: 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 759: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 760:
1.39 moko 761: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 762:
1.4 misha 763: long http_status = 0;
764: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
765: result.fields().put("status", new VInt(http_status));
766: }
767:
1.38 moko 768: VHash* vtables=new VHash;
769: result.fields().put("tables", vtables);
1.23 misha 770:
1.38 moko 771: for(Array_iterator<ResponseHeaders::Header> i(response.headers); i.has_next(); ){
772: ResponseHeaders::Header header=i.next();
1.24 misha 773:
774: if(asked_charset)
1.38 moko 775: header.transcode(*asked_charset, r.charsets.source());
776:
777: String &header_value=*new String(header.value, String::L_TAINTED);
778:
779: tables_update(vtables->hash(), header.name, header_value);
780: result.fields().put(header.name, new VString(header_value));
1.1 misha 781: }
782:
1.38 moko 783: // filling $.cookies
784: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
785: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 786:
1.46 moko 787: r.write(result);
1.1 misha 788: }
789:
790: static void _curl_load(Request& r, MethodParams& params){
791: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
792: }
793:
794: // constructor
795: MCurl::MCurl(): Methoded("curl") {
796: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 797: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 798: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 799: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 800: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 801: }
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