Annotation of parser3/src/classes/curl.C, revision 1.55
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:
1.55 ! moko 20: volatile const char * IDENT_CURL_C="$Id: curl.C,v 1.54 2017/02/07 22:00:25 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:
1.39 moko 84: ParserOptions() : filename(0), content_type(0), is_text(true), charset(0), response_charset(0), url(0), f_post(0), f_stderr(0){}
1.4 misha 85: ~ParserOptions() {
86: f_curl_formfree(f_post);
1.19 moko 87: if(f_stderr)
88: fclose(f_stderr);
1.4 misha 89: }
1.55 ! moko 90:
1.1 misha 91: };
92:
1.9 moko 93: // using TLS instead of keeping variables in request
94: THREAD_LOCAL CURL *fcurl = 0;
95: THREAD_LOCAL ParserOptions *foptions = 0;
1.1 misha 96:
97: static CURL *curl(){
98: if(!fcurl)
99: throw Exception("curl", 0, "outside of 'session' operator");
100: return fcurl;
101: }
102:
103: static ParserOptions &options(){
104: if(!foptions)
105: throw Exception("curl", 0, "outside of 'session' operator");
106: return *foptions;
107: }
108:
109: // using temporal object scheme to garanty cleanup call
110: class Temp_curl {
1.4 misha 111: CURL *saved_curl;
112: ParserOptions *saved_options;
1.1 misha 113: public:
1.4 misha 114: Temp_curl() : saved_curl(fcurl), saved_options(foptions){
1.5 misha 115: fcurl = f_curl_easy_init();
116: foptions = new ParserOptions();
1.4 misha 117: f_curl_easy_setopt(fcurl, CURLOPT_POSTFIELDSIZE, 0); // fix libcurl bug
1.27 moko 118: f_curl_easy_setopt(fcurl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); // avoid ipv6 by default
1.1 misha 119: }
120: ~Temp_curl() {
121: f_curl_easy_cleanup(fcurl);
122: fcurl = saved_curl;
123: delete foptions;
124: foptions = saved_options;
125: }
126: };
127:
128: bool curl_linked = false;
1.41 moko 129: const char *curl_status = 0;
1.29 moko 130: const char *curl_library="libcurl" LT_MODULE_EXT;
1.1 misha 131:
132: static void temp_curl(void (*action)(Request&, MethodParams&), Request& r, MethodParams& params){
1.41 moko 133: if(!curl_linked)
1.1 misha 134: curl_status=dlink(curl_library);
135:
136: if(curl_status == 0){
1.41 moko 137: curl_linked=true;
1.1 misha 138: Temp_curl temp_curl;
139: action(r,params);
140: } else {
141: throw Exception("curl", 0, "failed to load curl library %s: %s", curl_library, curl_status);
142: }
143: }
144:
145: static void _curl_session_action(Request& r, MethodParams& params){
146: Value& body_code=params.as_junction(0, "body must be code");
147: r.process_write(body_code);
148: }
149:
150: static void _curl_session(Request& r, MethodParams& params){
151: temp_curl(_curl_session_action, r, params);
152: }
153:
1.5 misha 154: static void _curl_version_action(Request& r, MethodParams& ){
1.46 moko 155: r.write(*new VString(*new String(f_curl_version(), String::L_TAINTED)));
1.4 misha 156: }
157:
158: static void _curl_version(Request& r, MethodParams& params){
159: fcurl ? _curl_version_action(r, params) : temp_curl(_curl_version_action, r, params);
160: }
1.1 misha 161:
1.55 ! moko 162: struct CurlOption : public PA_Allocated{
1.1 misha 163:
164: enum OptionType {
165: CURL_STRING,
166: CURL_URLENCODE, // url-encoded string
1.4 misha 167: CURL_URL,
1.1 misha 168: CURL_INT,
169: CURL_POST,
1.4 misha 170: CURL_FORM,
1.1 misha 171: CURL_HEADERS,
172: CURL_FILE,
1.15 moko 173: CURL_STDERR,
1.1 misha 174: PARSER_LIBRARY,
175: PARSER_NAME,
176: PARSER_CONTENT_TYPE,
177: PARSER_MODE,
1.4 misha 178: PARSER_CHARSET,
179: PARSER_RESPONSE_CHARSET
1.1 misha 180: };
181:
182: CURLoption id;
183: OptionType type;
184: CurlOption(CURLoption aid, OptionType atype): id(aid), type(atype) {}
185: };
186:
187: class CurlOptionHash: public HashString<CurlOption*> {
188: public:
189: CurlOptionHash() {
190: #define CURL_OPT(type, name) put(str_lower(#name),new CurlOption(CURLOPT_##name, CurlOption::type));
191: #define PARSER_OPT(type, name) put(name,new CurlOption((CURLoption)0, CurlOption::type));
1.4 misha 192: CURL_OPT(CURL_URL, URL);
1.1 misha 193: CURL_OPT(CURL_STRING, INTERFACE);
194: CURL_OPT(CURL_INT, LOCALPORT);
195: CURL_OPT(CURL_INT, PORT);
1.4 misha 196:
1.15 moko 197: CURL_OPT(CURL_INT, VERBOSE);
198: CURL_OPT(CURL_STDERR, STDERR);
199: CURL_OPT(CURL_INT, MAXFILESIZE);
200:
1.1 misha 201: CURL_OPT(CURL_INT, HTTPAUTH);
202: CURL_OPT(CURL_STRING, USERPWD);
203:
204: CURL_OPT(CURL_STRING, USERNAME);
205: CURL_OPT(CURL_STRING, PASSWORD);
206:
1.4 misha 207: CURL_OPT(CURL_URLENCODE, USERAGENT);
208: CURL_OPT(CURL_URLENCODE, REFERER);
1.1 misha 209: CURL_OPT(CURL_INT, AUTOREFERER);
1.25 misha 210:
1.1 misha 211: CURL_OPT(CURL_STRING, ENCODING); // gzip or deflate
1.25 misha 212: CURL_OPT(CURL_STRING, ACCEPT_ENCODING); // gzip or deflate
213:
1.1 misha 214: CURL_OPT(CURL_INT, FOLLOWLOCATION);
215: CURL_OPT(CURL_INT, UNRESTRICTED_AUTH);
1.27 moko 216: CURL_OPT(CURL_INT, IPRESOLVE);
1.1 misha 217:
218: CURL_OPT(CURL_INT, POST);
219: CURL_OPT(CURL_INT, HTTPGET);
1.4 misha 220: CURL_OPT(CURL_INT, NOBODY);
221: CURL_OPT(CURL_STRING, CUSTOMREQUEST);
1.1 misha 222:
223: CURL_OPT(CURL_POST, POSTFIELDS); // hopefully is safe too
224: CURL_OPT(CURL_POST, COPYPOSTFIELDS);
1.4 misha 225: CURL_OPT(CURL_FORM, HTTPPOST);
1.1 misha 226:
227: CURL_OPT(CURL_HEADERS, HTTPHEADER);
228: CURL_OPT(CURL_URLENCODE, COOKIE);
229: CURL_OPT(CURL_URLENCODE, COOKIELIST);
230: CURL_OPT(CURL_INT, COOKIESESSION);
231:
232: CURL_OPT(CURL_INT, IGNORE_CONTENT_LENGTH);
233: CURL_OPT(CURL_INT, HTTP_CONTENT_DECODING);
234: CURL_OPT(CURL_INT, HTTP_TRANSFER_DECODING);
235:
1.4 misha 236: CURL_OPT(CURL_INT, MAXREDIRS);
237: CURL_OPT(CURL_INT, POSTREDIR);
238:
239: CURL_OPT(CURL_STRING, RANGE);
240:
1.1 misha 241: CURL_OPT(CURL_INT, TIMEOUT);
242: CURL_OPT(CURL_INT, TIMEOUT_MS);
243: CURL_OPT(CURL_INT, LOW_SPEED_LIMIT);
244: CURL_OPT(CURL_INT, LOW_SPEED_TIME);
245: CURL_OPT(CURL_INT, MAXCONNECTS);
246:
1.4 misha 247: CURL_OPT(CURL_STRING, PROXY);
248: CURL_OPT(CURL_INT, PROXYPORT);
249: CURL_OPT(CURL_INT, PROXYTYPE);
250: CURL_OPT(CURL_INT, HTTPPROXYTUNNEL);
251: CURL_OPT(CURL_STRING, PROXYUSERPWD);
252: CURL_OPT(CURL_INT, PROXYAUTH);
253:
1.1 misha 254: CURL_OPT(CURL_INT, FRESH_CONNECT);
255: CURL_OPT(CURL_INT, FORBID_REUSE);
256: CURL_OPT(CURL_INT, CONNECTTIMEOUT);
257: CURL_OPT(CURL_INT, CONNECTTIMEOUT_MS);
1.4 misha 258: CURL_OPT(CURL_INT, FAILONERROR);
1.1 misha 259:
260: CURL_OPT(CURL_FILE, SSLCERT);
261: CURL_OPT(CURL_STRING, SSLCERTTYPE);
262: CURL_OPT(CURL_FILE, SSLKEY);
263: CURL_OPT(CURL_STRING, SSLKEYTYPE);
264: CURL_OPT(CURL_STRING, KEYPASSWD);
265: CURL_OPT(CURL_STRING, SSLENGINE);
266: CURL_OPT(CURL_STRING, SSLENGINE_DEFAULT);
267:
268: CURL_OPT(CURL_FILE, ISSUERCERT);
269: CURL_OPT(CURL_FILE, CRLFILE);
270:
271: CURL_OPT(CURL_STRING, CAINFO);
1.18 moko 272: CURL_OPT(CURL_FILE, CAPATH);
1.1 misha 273: CURL_OPT(CURL_INT, SSL_VERIFYPEER);
274: CURL_OPT(CURL_INT, SSL_VERIFYHOST);
275: CURL_OPT(CURL_STRING, SSL_CIPHER_LIST);
276: CURL_OPT(CURL_INT, SSL_SESSIONID_CACHE);
1.43 moko 277: CURL_OPT(CURL_INT, SSLVERSION);
1.1 misha 278:
279: PARSER_OPT(PARSER_LIBRARY, "library");
280: PARSER_OPT(PARSER_NAME, "name");
281: PARSER_OPT(PARSER_CONTENT_TYPE, "content-type");
282: PARSER_OPT(PARSER_MODE, "mode");
283: PARSER_OPT(PARSER_CHARSET, "charset");
1.4 misha 284: PARSER_OPT(PARSER_RESPONSE_CHARSET, "response-charset");
1.1 misha 285: }
286:
287: } *curl_options=0;
288:
1.55 ! moko 289: struct CurlInfo : public PA_Allocated{
1.32 moko 290:
291: enum OptionType {
292: CURL_STRING,
293: CURL_INT,
294: CURL_DOUBLE
295: };
296:
297: CURLINFO id;
298: OptionType type;
299: CurlInfo(CURLINFO aid, OptionType atype): id(aid), type(atype) {}
300: };
301:
302: class CurlInfoHash: public HashString<CurlInfo*> {
303: public:
304: CurlInfoHash() {
305: #define CURL_INF(type, name) put(str_lower(#name),new CurlInfo(CURLINFO_##name, CurlInfo::type));
306: CURL_INF(CURL_DOUBLE, APPCONNECT_TIME);
307: CURL_INF(CURL_DOUBLE, CONNECT_TIME);
308: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_DOWNLOAD);
309: CURL_INF(CURL_DOUBLE, CONTENT_LENGTH_UPLOAD);
310: CURL_INF(CURL_STRING, CONTENT_TYPE);
311: CURL_INF(CURL_STRING, EFFECTIVE_URL);
312: CURL_INF(CURL_INT, HEADER_SIZE);
313: CURL_INF(CURL_INT, HTTPAUTH_AVAIL);
314: CURL_INF(CURL_DOUBLE, NAMELOOKUP_TIME);
315: CURL_INF(CURL_INT, NUM_CONNECTS);
316: CURL_INF(CURL_INT, OS_ERRNO);
317: CURL_INF(CURL_DOUBLE, PRETRANSFER_TIME);
318: CURL_INF(CURL_STRING, PRIMARY_IP);
319: CURL_INF(CURL_INT, PROXYAUTH_AVAIL);
320: CURL_INF(CURL_INT, REDIRECT_COUNT);
321: CURL_INF(CURL_DOUBLE, REDIRECT_TIME);
322: CURL_INF(CURL_STRING, REDIRECT_URL);
323: CURL_INF(CURL_INT, REQUEST_SIZE);
324: CURL_INF(CURL_INT, RESPONSE_CODE);
325: CURL_INF(CURL_DOUBLE, SIZE_DOWNLOAD);
326: CURL_INF(CURL_DOUBLE, SIZE_UPLOAD);
327: CURL_INF(CURL_DOUBLE, SPEED_DOWNLOAD);
328: CURL_INF(CURL_DOUBLE, SPEED_UPLOAD);
329: CURL_INF(CURL_INT, SSL_VERIFYRESULT);
330: CURL_INF(CURL_DOUBLE, STARTTRANSFER_TIME);
331: CURL_INF(CURL_DOUBLE, TOTAL_TIME);
332: }
333:
334: } *curl_infos=0;
335:
1.1 misha 336: static const char *curl_urlencode(const String &s, Request& r){
337: if(options().charset){
338: Temp_client_charset temp(r.charsets, *options().charset);
339: return s.untaint_and_transcode_cstr(String::L_URI, &r.charsets);
340: } else
341: return s.untaint_cstr(String::L_URI);
342: }
343:
344: static struct curl_slist *curl_headers(HashStringValue *value_hash, Request& r) {
345: struct curl_slist *slist=NULL;
346:
347: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
348: String header =
1.10 moko 349: String(pa_http_safe_header_name(capitalize(i.key().cstr())), String::L_AS_IS)
1.1 misha 350: << ": "
1.10 moko 351: << String(i.value()->as_string(), String::L_HTTP_HEADER);
1.1 misha 352:
353: slist=f_curl_slist_append(slist, curl_urlencode(header, r));
354: }
355: return slist;
356: }
357:
1.4 misha 358: static const char* curl_transcode(const String &s, Request& r){
359: return options().charset ? Charset::transcode(s.cstr(), r.charsets.source(), *options().charset).cstr() : s.cstr();
360: }
361:
362: static void curl_form(HashStringValue *value_hash, Request& r){
363: struct curl_httppost *f_last=0;
364: for(HashStringValue::Iterator i(*value_hash); i; i.next() ){
365: const char *key = curl_transcode(String(i.key().cstr()), r);
366: if(const String* svalue = i.value()->get_string()){
367: // string
368: f_curl_formadd(&options().f_post, &f_last,
369: CURLFORM_PTRNAME, key,
370: CURLFORM_PTRCONTENTS, curl_transcode(String(svalue->cstr()), r),
371: CURLFORM_END);
372: } else if(Table* tvalue = i.value()->get_table()){
373: // table
374: for(size_t t = 0; t < tvalue->count(); t++) {
375: f_curl_formadd(&options().f_post, &f_last,
376: CURLFORM_PTRNAME, key,
377: CURLFORM_PTRCONTENTS, curl_transcode(String(tvalue->get(t)->get(0)->cstr()), r),
378: CURLFORM_END);
379: }
380: } else if(VFile* fvalue=static_cast<VFile *>(i.value()->as("file"))){
381: // file
382: f_curl_formadd(&options().f_post, &f_last,
383: CURLFORM_PTRNAME, key,
384: CURLFORM_BUFFER, curl_transcode(String(fvalue->fields().get("name")->as_string(), String::L_FILE_SPEC), r),
385: CURLFORM_BUFFERLENGTH, (long)fvalue->value_size(),
386: CURLFORM_BUFFERPTR, fvalue->value_ptr(),
387: CURLFORM_CONTENTTYPE, fvalue->fields().get("content-type")->as_string().taint_cstr(String::L_URI),
388: CURLFORM_END);
389: } else {
390: 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());
391: }
392: }
393: }
394:
1.18 moko 395: static const char *curl_check_file(const String &file_spec){
396: const char *file_spec_cstr=file_spec.taint_cstr(String::L_FILE_SPEC);
397: struct stat finfo;
1.49 moko 398: if(pa_stat(file_spec_cstr, &finfo)==0)
1.18 moko 399: check_safe_mode(finfo, file_spec, file_spec_cstr);
400: return file_spec_cstr;
401: }
402:
1.1 misha 403: static void curl_setopt(HashStringValue::key_type key, HashStringValue::value_type value, Request& r) {
404: CurlOption *opt=curl_options->get(key);
405:
406: if(opt==0)
407: throw Exception("curl", 0, "called with invalid option '%s'", key.cstr());
408:
409: CURLcode res = CURLE_OK;
1.44 moko 410: Value &v=r.process(*value);
1.1 misha 411:
412: switch (opt->type){
413: case CurlOption::CURL_STRING:{
414: // string curl option
415: const char *value_str=v.as_string().cstr();
416: res=f_curl_easy_setopt(curl(), opt->id, value_str);
417: break;
418: }
419: case CurlOption::CURL_URLENCODE:{
420: // url-encoded string curl option
421: const char *value_str=curl_urlencode(v.as_string(), r);
422: res=f_curl_easy_setopt(curl(), opt->id, value_str);
423: break;
424: }
1.4 misha 425: case CurlOption::CURL_URL:{
426: // url-encoded string curl_url option
1.5 misha 427: const String url = v.as_string();
428: if(!url.starts_with("http://") && !url.starts_with("https://"))
429: throw Exception("curl", 0, "failed to set option '%s': invalid url scheme '%s'", key.cstr(), url.cstr());
1.39 moko 430: options().url=curl_urlencode(url, r);
431: res=f_curl_easy_setopt(curl(), opt->id, options().url);
1.4 misha 432: break;
433: }
1.1 misha 434: case CurlOption::CURL_INT:{
1.2 misha 435: // integer curl option
436: long value_int=(long)v.as_double();
1.1 misha 437: res=f_curl_easy_setopt(curl(), opt->id, value_int);
438: break;
439: }
440: case CurlOption::CURL_POST:{
441: // http post curl option
442: if(v.get_string()){
1.2 misha 443: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, -1L)) == CURLE_OK )
1.1 misha 444: res=f_curl_easy_setopt(curl(), opt->id, curl_urlencode(v.as_string(), r));
445: } else {
446: VFile *file=v.as_vfile(String::L_AS_IS);
1.2 misha 447: if( (res=f_curl_easy_setopt(curl(), CURLOPT_POSTFIELDSIZE, (long)file->value_size())) == CURLE_OK )
1.1 misha 448: res=f_curl_easy_setopt(curl(), opt->id, file->value_ptr());
449: }
450: break;
451: }
1.4 misha 452: case CurlOption::CURL_FORM:{
1.48 moko 453: HashStringValue *value_hash = v.as_hash("failed to set option 'httppost': value");
1.4 misha 454: if(value_hash){
455: curl_form(value_hash, r);
1.48 moko 456: } else {
1.4 misha 457: f_curl_formfree(options().f_post);
458: options().f_post = 0;
1.5 misha 459: }
1.4 misha 460: res=f_curl_easy_setopt(curl(), CURLOPT_HTTPPOST, foptions->f_post);
461: break;
462: }
1.1 misha 463: case CurlOption::CURL_HEADERS:{
464: // http headers curl option
1.48 moko 465: HashStringValue *value_hash=v.as_hash("failed to set option 'httpheader': value");
1.1 misha 466: res=f_curl_easy_setopt(curl(), opt->id, value_hash ? curl_headers(value_hash, r) : 0);
467: break;
468: }
469: case CurlOption::CURL_FILE:{
470: // file-spec curl option
1.18 moko 471: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
472: res=f_curl_easy_setopt(curl(), opt->id, file_spec_cstr);
1.1 misha 473: break;
474: }
1.16 moko 475: case CurlOption::CURL_STDERR:{
476: // verbose output redirection from stderr to file curl option
1.18 moko 477: const char *file_spec_cstr=curl_check_file(r.absolute(v.as_string()));
1.53 moko 478: FILE *f_stderr=options().f_stderr=pa_fopen(file_spec_cstr, "wt");
1.19 moko 479: if (f_stderr){
480: res=f_curl_easy_setopt(curl(), opt->id, f_stderr);
1.16 moko 481: } else {
1.18 moko 482: throw Exception("curl", 0, "failed to set option '%s': unable to open file '%s'", key.cstr(), file_spec_cstr);
1.16 moko 483: }
484: break;
485: }
1.1 misha 486: case CurlOption::PARSER_LIBRARY:{
487: // 'library' parser option
1.41 moko 488: if(!curl_linked){
1.1 misha 489: curl_library=v.as_string().taint_cstr(String::L_FILE_SPEC);
490: } else
1.16 moko 491: throw Exception("curl", 0, "failed to set option '%s': already loaded", key.cstr());
1.1 misha 492: break;
493: }
494: case CurlOption::PARSER_NAME:{
495: // 'name' parser option
1.12 misha 496: options().filename=&v.as_string();
1.1 misha 497: break;
498: }
499: case CurlOption::PARSER_CONTENT_TYPE:{
500: // 'content-type' parser option
501: options().content_type=&v.as_string();
502: break;
503: }
504: case CurlOption::PARSER_MODE:{
505: // 'mode' parser option
1.12 misha 506: options().is_text=VFile::is_text_mode(v.as_string());
1.1 misha 507: break;
508: }
509: case CurlOption::PARSER_CHARSET:{
1.30 moko 510: // 'charset' parser option should be processed before other options
1.1 misha 511: break;
512: }
1.4 misha 513: case CurlOption::PARSER_RESPONSE_CHARSET:{
1.12 misha 514: // 'response-charset' parser option
1.42 moko 515: options().response_charset=&pa_charsets.get(v.as_string());
1.4 misha 516: break;
517: }
1.1 misha 518: }
519:
520: if(res != CURLE_OK)
521: throw Exception("curl", 0, "failed to set option '%s': %s", key.cstr(), f_curl_easy_strerror(res));
522: }
523:
1.3 misha 524: static void _curl_options(Request& r, MethodParams& params){
1.1 misha 525: if(curl_options==0)
526: curl_options=new CurlOptionHash();
527:
1.30 moko 528: if(HashStringValue* options_hash=params.as_hash(0)){
529: if(Value* value=options_hash->get("charset")){
530: // charset should be handled first as params may require transcode
1.44 moko 531: Value &v=r.process(*value);
1.42 moko 532: options().charset=&pa_charsets.get(v.as_string());
1.30 moko 533: }
534: options_hash->for_each<Request&>(curl_setopt, r);
535: }
1.1 misha 536: }
537:
1.32 moko 538: #define CURL_GETINFO(arg) \
539: if((res=f_curl_easy_getinfo(curl(), info->id, &arg)) != CURLE_OK){ \
540: throw Exception("curl", 0, "failed to get %s info: %s", key.cstr(), f_curl_easy_strerror(res)); \
541: }
542:
1.34 moko 543: static Value *curl_getinfo(const String::Body &key, CurlInfo *info=0) {
544: if(info==0 && !(info=curl_infos->get(key)))
1.32 moko 545: throw Exception("curl", 0, "called with invalid parameter '%s'", key.cstr());
546:
547: CURLcode res;
548: switch (info->type){
549: case CurlInfo::CURL_STRING:{
550: char *str=0;
551: CURL_GETINFO(str);
1.33 moko 552: return new VString(str ? *new String(pa_strdup(str), String::L_TAINTED) : String::Empty);
1.32 moko 553: }
554: case CurlInfo::CURL_INT:{
555: long l=0;
556: CURL_GETINFO(l);
557: return new VInt(l);
558: }
559: case CurlInfo::CURL_DOUBLE:{
560: double d=0;
561: CURL_GETINFO(d);
562: return new VDouble(d);
563: }
564: }
565: return VVoid::get();
566: }
567:
568: static void _curl_info(Request& r, MethodParams& params){
569: if(curl_infos==0)
570: curl_infos=new CurlInfoHash();
571: if(params.count()==1){
572: const String &name=params.as_string(0, "name must be string");
1.46 moko 573: r.write(*curl_getinfo(name));
1.32 moko 574: } else {
575: VHash& result=*new VHash;
576: for(CurlInfoHash::Iterator i(*curl_infos); i; i.next() ){
1.34 moko 577: result.get_hash()->put(i.key(), curl_getinfo(i.key(), i.value()));
1.32 moko 578: }
1.46 moko 579: r.write(result);
1.32 moko 580: }
581: }
582:
1.1 misha 583:
584: class Curl_buffer{
585: public:
586: char *buf;
587: size_t length;
588: size_t buf_size;
1.50 moko 589: ResponseHeaders& headers;
1.1 misha 590:
1.52 moko 591: Curl_buffer(ResponseHeaders& aheaders) : buf((char *)pa_malloc_atomic(MAX_STRING)), length(0), buf_size(MAX_STRING-1), headers(aheaders){}
1.50 moko 592:
593: void resize(size_t size){
594: buf_size=size;
595: buf=(char *)pa_realloc(buf, size+1);
596: }
1.1 misha 597: };
598:
599: static int curl_writer(char *data, size_t size, size_t nmemb, Curl_buffer *result){
600: if(result == 0)
601: return 0;
602:
603: size=size*nmemb;
604: if(size>0){
1.50 moko 605: size_t buf_required = result->length + size;
606: if(buf_required > result->buf_size)
1.51 moko 607: result->resize(buf_required <= result->headers.content_length ? (size_t)result->headers.content_length : result->buf_size*2 + size);
1.1 misha 608: memcpy(result->buf+result->length, data, size);
609: result->length += size;
610: }
611: return size;
612: }
613:
1.38 moko 614: static int curl_header(char *data, size_t size, size_t nmemb, ResponseHeaders *result){
1.1 misha 615: if(result == 0)
616: return 0;
617:
618: size=size*nmemb;
619: if(size>0){
1.47 moko 620: char *header=pa_strdup(data, size);
621: if(!pa_strncasecmp(header, "HTTP/") && !strchr(header, ':')){
622: // response code, clearing possible headers from previous requests
623: result->clear();
624: } else {
625: result->add_header(header);
1.50 moko 626: if(result->content_length>pa_file_size_limit)
627: return 0;
1.47 moko 628: }
1.1 misha 629: }
630: return size;
631: }
632:
633: #define CURL_SETOPT(option, arg, message) \
634: if( (res=f_curl_easy_setopt(curl(), option, arg)) != CURLE_OK){ \
635: throw Exception("curl", 0, "failed to set " message ": %s", f_curl_easy_strerror(res)); \
636: }
637:
638: static void _curl_load_action(Request& r, MethodParams& params){
639: if(params.count()==1)
1.3 misha 640: _curl_options(r, params);
1.1 misha 641:
642: CURLcode res;
643:
644: // we need a container for headers as VFile fields can be put only after VFile.set
1.38 moko 645: ResponseHeaders response;
1.1 misha 646: CURL_SETOPT(CURLOPT_HEADERFUNCTION, curl_header, "curl header function");
1.24 misha 647: CURL_SETOPT(CURLOPT_WRITEHEADER, &response, "curl header buffer");
1.1 misha 648:
1.50 moko 649: Curl_buffer body(response);
650: CURL_SETOPT(CURLOPT_WRITEFUNCTION, curl_writer, "curl writer function");
651: CURL_SETOPT(CURLOPT_WRITEDATA, &body, "curl write buffer");
652:
1.1 misha 653: if((res=f_curl_easy_perform(curl())) != CURLE_OK){
1.15 moko 654: const char *ex_type = 0;
1.4 misha 655: switch(res){
656: case CURLE_OPERATION_TIMEDOUT:
657: ex_type = "curl.timeout"; break;
658: case CURLE_COULDNT_RESOLVE_HOST:
659: ex_type = "curl.host"; break;
660: case CURLE_COULDNT_CONNECT:
661: ex_type = "curl.connect"; break;
662: case CURLE_HTTP_RETURNED_ERROR:
663: ex_type = "curl.status"; break;
664: case CURLE_SSL_CONNECT_ERROR:
665: case CURLE_SSL_CERTPROBLEM:
666: case CURLE_SSL_CIPHER:
667: case CURLE_SSL_CACERT:
668: case CURLE_SSL_ENGINE_INITFAILED:
669: ex_type = "curl.ssl"; break;
1.50 moko 670: case CURLE_WRITE_ERROR:
671: check_file_size(response.content_length, *new String(options().url)); break;
1.31 moko 672: default: break;
1.4 misha 673: }
1.38 moko 674: throw Exception( PA_DEFAULT(ex_type, "curl.fail"), 0, "%s", f_curl_easy_strerror(res));
1.1 misha 675: }
676:
677: // assure trailing zero
678: body.buf[body.length]=0;
679:
1.4 misha 680: VFile& result=*new VFile;
681:
1.8 moko 682: Charset *asked_charset = options().response_charset;
1.38 moko 683: if (!asked_charset && !response.content_type.is_empty())
684: asked_charset=detect_charset(response.content_type.cstr());
685:
686: if(options().is_text)
1.42 moko 687: asked_charset=pa_charsets.checkBOM(body.buf, body.length, asked_charset);
1.38 moko 688:
689: if (!asked_charset)
690: asked_charset = options().charset;
1.1 misha 691:
692: if(options().is_text && asked_charset != 0){
693: String::C c=Charset::transcode(String::C(body.buf, body.length), *asked_charset, r.charsets.source());
694: body.buf=(char *)c.str;
695: body.length=c.length;
696: }
697:
1.38 moko 698: 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 699: const String *filename = PA_DEFAULT(options().filename, new String(options().url));
1.38 moko 700:
1.39 moko 701: result.set(true/*tainted*/, options().is_text, body.buf, body.length, filename, content_type ? new VString(*content_type) : 0, &r);
1.38 moko 702:
1.4 misha 703: long http_status = 0;
704: if(f_curl_easy_getinfo(curl(), CURLINFO_RESPONSE_CODE, &http_status) == CURLE_OK){
705: result.fields().put("status", new VInt(http_status));
706: }
707:
1.38 moko 708: VHash* vtables=new VHash;
709: result.fields().put("tables", vtables);
1.23 misha 710:
1.38 moko 711: for(Array_iterator<ResponseHeaders::Header> i(response.headers); i.has_next(); ){
712: ResponseHeaders::Header header=i.next();
1.24 misha 713:
714: if(asked_charset)
1.38 moko 715: header.transcode(*asked_charset, r.charsets.source());
716:
717: String &header_value=*new String(header.value, String::L_TAINTED);
718:
719: tables_update(vtables->hash(), header.name, header_value);
720: result.fields().put(header.name, new VString(header_value));
1.1 misha 721: }
722:
1.38 moko 723: // filling $.cookies
724: if(Value *vcookies=vtables->hash().get("SET-COOKIE"))
725: result.fields().put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.23 misha 726:
1.46 moko 727: r.write(result);
1.1 misha 728: }
729:
730: static void _curl_load(Request& r, MethodParams& params){
731: fcurl ? _curl_load_action(r, params) : temp_curl(_curl_load_action, r, params);
732: }
733:
734: // constructor
735: MCurl::MCurl(): Methoded("curl") {
736: add_native_method("session", Method::CT_STATIC, _curl_session, 1, 1);
1.4 misha 737: add_native_method("version", Method::CT_STATIC, _curl_version, 0, 0);
1.3 misha 738: add_native_method("options", Method::CT_STATIC, _curl_options, 1, 1);
1.32 moko 739: add_native_method("info", Method::CT_STATIC, _curl_info, 0, 1);
1.1 misha 740: add_native_method("load", Method::CT_STATIC, _curl_load, 0, 1);
1.3 misha 741: }
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