Annotation of parser3/src/main/pa_request.C, revision 1.334
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.329 moko 4: Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
1.194 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.218 paf 6: */
1.55 paf 7:
1.69 paf 8: #include "pa_sapi.h"
1.53 paf 9: #include "pa_common.h"
1.1 paf 10: #include "pa_request.h"
1.3 paf 11: #include "pa_wwrapper.h"
12: #include "pa_vclass.h"
1.31 paf 13: #include "pa_globals.h"
1.30 paf 14: #include "pa_vint.h"
1.297 misha 15: #include "pa_vmethod_frame.h"
1.32 paf 16: #include "pa_types.h"
1.248 paf 17: #include "pa_venv.h"
18: #include "pa_vmath.h"
19: #include "pa_vstatus.h"
20: #include "pa_vrequest.h"
1.78 paf 21: #include "pa_vtable.h"
1.90 paf 22: #include "pa_vfile.h"
1.147 parser 23: #include "pa_dictionary.h"
1.208 paf 24: #include "pa_charset.h"
1.186 paf 25: #include "pa_charsets.h"
1.248 paf 26: #include "pa_cache_managers.h"
27: #include "pa_vmail.h"
28: #include "pa_vform.h"
29: #include "pa_vcookie.h"
30: #include "pa_vresponse.h"
31: #include "pa_vmemory.h"
1.253 paf 32: #include "pa_vconsole.h"
1.267 paf 33: #include "pa_vdate.h"
1.159 parser 34:
1.334 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.333 2013/07/23 14:29:02 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 36:
1.248 paf 37: // consts
38:
1.269 paf 39: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 40:
1.82 paf 41: /// content type of exception response, when no @MAIN:exception handler defined
1.248 paf 42: const char* UNHANDLED_EXCEPTION_CONTENT_TYPE="text/plain";
1.82 paf 43:
44: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 45: const char* DEFAULT_CONTENT_TYPE="text/html";
46: const char* ORIGINS_CONTENT_TYPE="text/plain";
47:
48: // defines for globals
49:
50: #define MAIN_METHOD_NAME "main"
51: #define AUTO_METHOD_NAME "auto"
1.309 misha 52: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 53: #define BODY_NAME "body"
54: #define EXCEPTION_TYPE_PART_NAME "type"
55: #define EXCEPTION_SOURCE_PART_NAME "source"
56: #define EXCEPTION_COMMENT_PART_NAME "comment"
57:
58: // globals
59:
60: const String main_method_name(MAIN_METHOD_NAME);
61: const String auto_method_name(AUTO_METHOD_NAME);
1.309 misha 62: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 63:
1.248 paf 64: const String body_name(BODY_NAME);
65: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
66: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
67: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
68: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
69:
70: // defines for statics
71:
72: #define CHARSETS_NAME "CHARSETS"
73: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 74: #define STRICT_VARS_NAME "STRICT-VARS"
1.248 paf 75: #define ORIGINS_MODE_NAME "ORIGINS"
76: #define CONF_METHOD_NAME "conf"
77: #define POST_PROCESS_METHOD_NAME "postprocess"
78: #define DOWNLOAD_NAME "download"
79: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 80: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 81:
82: // statics
83:
84: static const String charsets_name(CHARSETS_NAME);
85: static const String main_class_name(MAIN_CLASS_NAME);
86: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 87: static const String strict_vars_name(STRICT_VARS_NAME);
1.248 paf 88: static const String origins_mode_name(ORIGINS_MODE_NAME);
89: static const String conf_method_name(CONF_METHOD_NAME);
90: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
91: static const String download_name(DOWNLOAD_NAME);
92: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 93: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 94:
95: // defines
1.82 paf 96:
1.233 paf 97: // op.C
1.248 paf 98: VStateless_class& VClassMAIN_create();
1.123 paf 99:
1.157 parser 100: //
1.248 paf 101: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 102: String::Language adefault_lang):
1.248 paf 103: // private
104: anti_endless_execute_recoursion(0),
105:
106: // public
107: method_frame(0),
108: rcontext(0),
109: wcontext(0),
110: flang(adefault_lang),
1.191 paf 111: fconnection(0),
1.307 misha 112: finterrupted(false),
113: fskip(SKIP_NOTHING),
114: fin_cycle(0),
1.248 paf 115:
116: // public
1.257 paf 117: request_info(arequest_info),
1.248 paf 118: sapi_info(asapi_info),
119: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
120:
121: main_class(VClassMAIN_create()),
1.260 paf 122: form(*new VForm(charsets, arequest_info)),
1.248 paf 123: mail(*new VMail),
124: response(*new VResponse(arequest_info, charsets)),
1.298 misha 125: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 126: console(*new VConsole),
1.248 paf 127:
128: // private
129: configure_admin_done(false),
130:
131: // private defaults
132: fdefault_lang(adefault_lang),
133: // private mime types
134: mime_types(0)
1.157 parser 135: {
1.261 paf 136: pa_register_thread_request(*this);
137:
1.248 paf 138: // file_no=0 => unknown
1.263 paf 139: file_list+=String::Body("UNKNOWN");
140: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 141:
1.178 paf 142: // maybe expire old caches
1.264 paf 143: cache_managers->maybe_expire();
1.178 paf 144:
1.157 parser 145: /// directly used
1.233 paf 146: // MAIN class, operators
1.235 paf 147: classes().put(main_class.name(), &main_class);
1.157 parser 148: // classes:
149: // table, file, random, mail, image, ...
1.248 paf 150: methoded_array().register_directly_used(*this);
1.157 parser 151:
152: /// methodless
153: // env class
1.249 paf 154: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 155: // status class
1.325 moko 156: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 157: // request class
1.294 misha 158: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form));
1.157 parser 159: // cookie class
1.249 paf 160: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 161: // console class
1.285 misha 162: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 163: /// methoded
164: // response class
1.248 paf 165: classes().put(response.get_class()->name(), &response);
1.157 parser 166:
167: /// bases used
168: // form class
1.248 paf 169: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 170: // mail class
1.248 paf 171: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 172: // math class
1.248 paf 173: {
174: Value& math=*new VMath;
175: classes().put(math.get_class()->base_class()->name(), &math);
176: }
177: // memory class
178: {
179: Value& memory=*new VMemory;
180: classes().put(memory.get_class()->base_class()->name(), &memory);
181: }
1.117 paf 182: }
1.192 paf 183:
184: Request::~Request() {
185: #ifdef XML
186: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 187: if(const char* xml_generic_errors=xmlGenericErrors()) {
188: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 189: free((void *)xml_generic_errors);
190: }
191: #endif
192: }
1.236 paf 193:
1.248 paf 194: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 195:
1.309 misha 196: Value* Request::get_class(const String& name){
197: Value* result=classes().get(name);
1.313 misha 198: if(!result)
1.309 misha 199: if(Value* value=main_class.get_element(autouse_method_name))
200: if(Junction* junction=value->get_junction())
201: if(const Method *method=junction->method) {
202: Value *vname=new VString(name);
1.322 moko 203: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 204:
205: frame.store_params(&vname, 1);
206: // we don't need the result
1.323 moko 207: execute_method(frame);
1.309 misha 208:
209: result=classes().get(name);
210: }
1.313 misha 211:
1.309 misha 212: return result;
213: }
214:
1.248 paf 215: static void load_charset(HashStringValue::key_type akey,
216: HashStringValue::value_type avalue,
217: Request_charsets* charsets) {
1.249 paf 218: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 219: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 220: }
1.248 paf 221: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 222: if(configure_admin_done)
1.286 misha 223: throw Exception(PARSER_RUNTIME,
1.248 paf 224: 0,
1.208 paf 225: "parser already configured");
226: configure_admin_done=true;
227:
1.227 paf 228: // charsets must only be specified in method_frame config
1.208 paf 229: // so that users would not interfere
230:
231: /* $MAIN:CHARSETS[
232: $.charsetname1[/full/path/to/charset/file.cfg]
233: ...
234: ]
235: */
1.308 misha 236: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.240 paf 237: if(!vcharsets->is_string())
1.248 paf 238: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 239: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 240: else
1.286 misha 241: throw Exception(PARSER_RUNTIME,
1.240 paf 242: 0,
243: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 244: }
245:
1.330 moko 246: #ifdef STRICT_VARS
1.332 moko 247: VVoid::strict_vars=false;
1.330 moko 248: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
249: if(strict_vars->is_bool())
250: VVoid::strict_vars=strict_vars->as_bool();
251: else
252: throw Exception(PARSER_RUNTIME,
253: 0,
254: "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
255: }
256: #endif
257:
1.227 paf 258: // configure method_frame options
1.208 paf 259: // until someone with less privileges have overriden them
1.248 paf 260: methoded_array().configure_admin(*this);
1.208 paf 261: }
1.150 parser 262:
1.269 paf 263: const char* Request::get_exception_cstr(
264: const Exception& e,
265: Request::Exception_details& details) {
266: #define PA_URI_FORMAT "%s: "
267: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
268: #define PA_SOURCE_FORMAT "'%s' "
269: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
270: char* result=new(PointerFreeGC) char[MAX_STRING];
271:
272: if(details.problem_source) { // do we know the guy?
273: if(details.trace) { // do whe know where he came from?
274: Operation::Origin origin=details.trace.origin();
275: snprintf(result, MAX_STRING,
276: PA_URI_FORMAT
277: PA_ORIGIN_FILE_POS_FORMAT
278: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
279: request_info.uri,
280: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
281: details.problem_source->cstr(),
282: e.comment(), e.type()
283: );
284: } else
285: snprintf(result, MAX_STRING,
286: PA_URI_FORMAT
287: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
288: request_info.uri,
289: details.problem_source->cstr(),
290: e.comment(), e.type()
291: );
292: } else
293: snprintf(result, MAX_STRING,
294: PA_URI_FORMAT
295: PA_COMMENT_TYPE_FORMAT,
296: request_info.uri,
297: e.comment(), e.type()
298: );
299:
300: return result;
301: }
1.272 paf 302:
303: void Request::configure() {
304: // configure admin options if not configured yet
305: if(!configure_admin_done)
306: configure_admin(main_class);
307:
308: // configure not-admin=user options
309: methoded_array().configure_user(*this);
310:
311: // $MAIN:MIME-TYPES
1.308 misha 312: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 313: if(Table *table=element->get_table())
314: mime_types=table;
315: }
1.64 paf 316: /**
317: load MAIN class, execute @main.
318: MAIN class consists of all the auto.p files we'd manage to find
319: plus
320: the file user requested us to process
321: all located classes become children of one another,
322: composing class we name 'MAIN'
1.180 paf 323:
324: @test log stack trace
325:
1.64 paf 326: */
1.248 paf 327: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 328: try {
1.271 paf 329: // filling mail received
330: mail.fill_received(*this);
331:
1.211 paf 332: // loading config
333: if(config_filespec) {
1.248 paf 334: const String& filespec=*new String(config_filespec);
1.318 misha 335: use_file_directly(main_class,
336: filespec,
1.248 paf 337: config_fail_on_read_problem,
338: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 339: }
1.8 paf 340:
1.72 paf 341: // loading auto.p files from document_root/..
342: // to the one beside requested file.
343: // all assigned bases from upper dir
344: {
1.248 paf 345: const char* after=request_info.path_translated;
346: size_t drlen=strlen(request_info.document_root);
347: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 348: after+=drlen;
349: if(after[-1]=='/')
350: --after;
351: }
352:
1.248 paf 353: while(const char* before=strchr(after, '/')) {
354: String& sfile_spec=*new String;
355: if(after!=request_info.path_translated) {
356: sfile_spec.append_strdup(
357: request_info.path_translated, before-request_info.path_translated,
358: String::L_CLEAN);
1.152 parser 359: sfile_spec << "/" AUTO_FILE_NAME;
360:
1.318 misha 361: use_file_directly(main_class,
1.248 paf 362: sfile_spec,
363: true /*fail on read problem*/,
364: false /*but ignore absence, sole user*/);
1.115 paf 365: }
1.317 misha 366: for(after=before+1;*after=='/';after++);
1.72 paf 367: }
368: }
1.34 paf 369:
1.272 paf 370: try {
371: // compile requested file
372: String& spath_translated=*new String;
373: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 374: use_file_directly(main_class, spath_translated);
1.272 paf 375:
376: configure();
377: } catch(...) {
378: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
379: rethrow;
380: }
1.25 paf 381:
382: // execute @main[]
1.248 paf 383: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 384: if(!body_string)
1.286 misha 385: throw Exception(PARSER_RUNTIME,
1.248 paf 386: 0,
1.145 parser 387: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 388:
1.250 paf 389: // extract response body
390: Value* body_value=response.fields().get(download_name); // $response:download?
391: bool as_attachment=body_value!=0;
392: if(!body_value)
393: body_value=response.fields().get(body_name); // $response:body
394: if(!body_value)
395: body_value=new VString(*body_string); // just result of ^main[]
396:
1.119 paf 397: // @postprocess
1.308 misha 398: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 399: if(Junction* junction=value->get_junction())
1.91 paf 400: if(const Method *method=junction->method) {
401: // preparing to pass parameters to
1.119 paf 402: // @postprocess[data]
1.322 moko 403: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 404:
1.300 misha 405: frame.store_params(&body_value, 1);
1.323 moko 406: execute_method(frame);
407:
408: body_value=&frame.result().as_value();
1.91 paf 409: }
1.90 paf 410:
1.303 misha 411: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 412:
1.45 paf 413: // OK. write out the result
1.248 paf 414: output_result(body_file, header_only, as_attachment);
1.183 paf 415:
1.171 parser 416: } catch(const Exception& e) { // request handling problem
1.268 paf 417: try {
1.76 paf 418: // we're returning not result, but error explanation
1.269 paf 419:
420: Request::Exception_details details=get_details(e);
421: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 422:
423: // reset language to default
424: flang=fdefault_lang;
425:
426: // reset response
427: response.fields().clear();
428:
429: // this is what we'd return in $response:body
430: const String* body_string=0;
431:
432: // maybe we'd be lucky enough as to report an error
433: // in a gracefull way...
1.308 misha 434: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 435: if(Junction* junction=value->get_junction()) {
436: if(const Method *method=junction->method) {
1.287 misha 437: // preparing to pass parameters to
438: // @unhandled_exception[exception;stack]
439:
440: // $stack[^table::create{name file lineno colno}]
441: Table::columns_type stack_trace_columns(new ArrayString);
442: *stack_trace_columns+=new String("name");
443: *stack_trace_columns+=new String("file");
444: *stack_trace_columns+=new String("lineno");
445: *stack_trace_columns+=new String("colno");
446: Table& stack_trace=*new Table(stack_trace_columns);
447: if(!exception_trace.is_empty()/*signed!*/)
448: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
449: Trace trace=exception_trace.get(i);
450: Table::element_type row(new ArrayString);
451:
452: *row+=trace.name(); // name column
453: Operation::Origin origin=trace.origin();
454: if(origin.file_no) {
455: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
456: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
457: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
458: }
459: stack_trace+=row;
460: }
461:
1.323 moko 462: // future $response:body=
463: // execute ^unhandled_exception[exception;stack]
464: exception_trace.clear(); // forget all about previous life, in case there would be error inside of this method, error handled would not be mislead by old stack contents (see extract_origin)
465:
466: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 467: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 468:
1.300 misha 469: frame.store_params(params, 2);
1.323 moko 470: execute_method(frame);
1.287 misha 471:
1.323 moko 472: body_string=&frame.result().as_string();
1.233 paf 473: }
1.30 paf 474: }
1.258 paf 475: }
476:
477: if(!body_string) { // couldn't report an error beautifully?
478: // doing that ugly
479:
480: // future $response:content-type
1.314 misha 481: response.fields().put(http_content_type, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 482: // future $response:body
1.269 paf 483: body_string=new String(exception_cstr);
1.258 paf 484: }
1.41 paf 485:
1.258 paf 486: VString body_vstring(*body_string);
1.303 misha 487: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 488:
1.273 paf 489: // conditionally log it
490: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
491: if(!vhandled || !vhandled->as_bool()) {
492: SAPI::log(sapi_info, "%s", exception_cstr);
493: }
494:
1.258 paf 495: // ERROR. write it out
496: output_result(body_file, header_only, false);
1.287 misha 497:
1.273 paf 498: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 499: Request::Exception_details details=get_details(e);
500: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 501: // unconditionally log the beast
502: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 503:
504: throw Exception(0,
505: 0,
506: "in %s",
507: exception_cstr);
1.268 paf 508: }
1.1 paf 509: }
510: }
511:
1.266 paf 512: uint Request::register_file(String::Body file_spec) {
1.248 paf 513: file_list+=file_spec;
514: return file_list.count()-1;
515: }
516:
1.318 misha 517: void Request::use_file_directly(VStateless_class& aclass,
518: const String& file_spec,
519: bool fail_on_read_problem,
520: bool fail_on_file_absence) {
521:
1.73 paf 522: // cyclic dependence check
1.318 misha 523: if(used_files.get(file_spec))
1.248 paf 524: return;
1.318 misha 525: used_files.put(file_spec, true);
526:
527: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
528: if(!entry_exists(file_spec))
529: return;
530:
531: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
532: use_buf(aclass, source, 0, register_file(file_spec));
533: }
534:
535:
536: void Request::use_file(VStateless_class& aclass,
537: const String& file_name,
538: const String* use_filespec/*absolute*/) {
1.73 paf 539:
1.326 misha 540: if(file_name.is_empty())
541: throw Exception(PARSER_RUNTIME,
542: 0,
543: "usage failed - no filename was specified");
544:
1.318 misha 545: const String* filespec=0;
546:
547: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
548: filespec=&absolute(file_name);
549: else if(use_filespec){ // search in current dir first
1.331 misha 550: size_t last_slash_pos=use_filespec->strrpbrk("/");
551: if(last_slash_pos!=STRING_NOT_FOUND)
552: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 553: }
554:
555: if(!filespec){
556: // prevent multiple scan CLASS_PATH for searching one file
557: if(searched_along_class_path.get(file_name))
558: return;
559: searched_along_class_path.put(file_name, true);
1.308 misha 560: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 561: if(element->is_string()) {
1.318 misha 562: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 563: } else if(Table *table=element->get_table()) {
1.318 misha 564: for(size_t i=table->count(); i--; ) {
1.248 paf 565: const String& path=*(*table->get(i))[0];
1.318 misha 566: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 567: break; // found along class_path
568: }
569: } else
1.286 misha 570: throw Exception(PARSER_RUNTIME,
1.233 paf 571: 0,
572: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 573: if(!filespec)
1.286 misha 574: throw Exception(PARSER_RUNTIME,
1.233 paf 575: &file_name,
576: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 577: } else
1.286 misha 578: throw Exception(PARSER_RUNTIME,
1.153 parser 579: &file_name,
1.203 paf 580: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 581: }
1.230 paf 582:
1.318 misha 583: use_file_directly(aclass, *filespec);
1.16 paf 584: }
585:
1.208 paf 586:
1.248 paf 587: void Request::use_buf(VStateless_class& aclass,
1.318 misha 588: const char* source, const String* main_alias,
589: uint file_no,
590: int line_no_offset) {
1.233 paf 591: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 592: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 593: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 594: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 595:
1.295 misha 596: // compile loaded classes
597: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 598:
1.248 paf 599: VString* vfilespec=
600: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 601:
602: for(size_t i=0; i<cclasses.count(); i++){
603: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 604:
605: // locate and execute possible @conf[] static
1.295 misha 606: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
607: conf_method_name, vfilespec,
608: false/*no string result needed*/);
609: if(executed.method)
610: configure_admin(cclass/*, executed.method->name*/);
611:
612: // locate and execute possible @auto[] static
613: execute_nonvirtual_method(cclass,
614: auto_method_name, vfilespec,
615: false/*no result needed*/);
616: }
1.19 paf 617: }
618:
1.248 paf 619: const String& Request::relative(const char* apath, const String& relative_name) {
620: char *hpath=strdup(apath);
621: String& result=*new String;
622: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 623: result << hpath << "/";
1.248 paf 624: result << relative_name;
625: return result;
1.19 paf 626: }
627:
1.77 paf 628: const String& Request::absolute(const String& relative_name) {
1.217 paf 629: if(relative_name.first_char()=='/') {
1.248 paf 630: String& result=*new String(strdup(request_info.document_root));
1.104 paf 631: result << relative_name;
1.19 paf 632: return result;
633: } else
1.248 paf 634: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 635: #ifdef WIN32
636: || relative_name.pos(":")==1 // DRIVE:
637: || relative_name.starts_with("\\\\") // UNC1
638: || relative_name.starts_with("//") // UNC2
639: #endif
640: )
641: return relative_name;
642: else
1.248 paf 643: return relative(request_info.path_translated, relative_name);
1.1 paf 644: }
1.45 paf 645:
1.267 paf 646: #ifndef DOXYGEN
647: class Add_header_attribute_info
648: {
649: public:
650: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
651: Request& r;
652: bool add_last_modified;
653: };
654: #endif
1.248 paf 655: static void add_header_attribute(
1.290 misha 656: HashStringValue::key_type name,
657: HashStringValue::value_type value,
1.267 paf 658: Add_header_attribute_info* info) {
1.290 misha 659: if(name==BODY_NAME
660: || name==DOWNLOAD_NAME
661: || name==CHARSET_NAME)
1.101 paf 662: return;
1.290 misha 663:
1.316 misha 664: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 665:
1.267 paf 666: SAPI::add_header_attribute(info->r.sapi_info,
1.303 misha 667: aname,
1.316 misha 668: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 669: );
1.267 paf 670:
1.290 misha 671: if(strcasecmp(aname, "last-modified")==0)
1.303 misha 672: info->add_last_modified=false;
1.267 paf 673: }
674:
675: static void output_sole_piece(Request& r,
676: bool header_only,
677: VFile& body_file,
678: Value* body_file_content_type) {
679: // transcode text body when "text/*" or simple result
680: String::C output(body_file.value_ptr(), body_file.value_size());
681: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
682: output=Charset::transcode(output,
683: r.charsets.source(),
684: r.charsets.client());
685:
1.311 misha 686: // prepare header: Content-Length
687: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 688:
689: // send header
690: SAPI::send_header(r.sapi_info);
691:
692: // send body
693: if(!header_only)
694: SAPI::send_body(r.sapi_info, output.str, output.length);
695: }
696:
697: #ifndef DOXYGEN
698: struct Range
699: {
700: size_t start;
701: size_t end;
702: };
703: #endif
1.313 misha 704: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 705: const char *p = s->cstr();
706: if(s->starts_with("bytes="))
707: p += 6;
708: Range r;
709: while(*p){
710: r.start = (size_t)-1;
711: r.end = (size_t)-1;
712: if(*p >= '0' && *p <= '9'){
713: r.start = atol(p);
714: while(*p>='0' && *p<='9') ++p;
715: }
716: if(*p++ != '-') break;
717: if(*p >= '0' && *p <= '9'){
718: r.end = atol(p);
719: while(*p>='0' && *p<='9') ++p;
720: }
721: if(*p == ',') ++p;
722: ar += r;
723: }
1.101 paf 724: }
1.267 paf 725:
726: static void output_pieces(Request& r,
727: bool header_only,
728: const String& filename,
729: size_t content_length,
730: Value& date,
731: bool add_last_modified)
732: {
1.315 misha 733: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 734:
1.267 paf 735: const size_t BUFSIZE = 10*0x400;
736: char buf[BUFSIZE];
737: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
738: size_t offset=0;
739: size_t part_length=content_length;
740: if(range){
741: Array<Range> ar;
742: parse_range(new String(range), ar);
743: size_t count = ar.count();
744: if(count == 1){
745: Range &rg = ar.get_ref(0);
746: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 747: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 748: return;
749: }
750: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
751: rg.start = content_length - rg.end;
752: rg.end = content_length;
753: offset += rg.start;
754: part_length = rg.end-rg.start;
755: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
756: rg.end = content_length-1;
757: offset += rg.start;
758: part_length -= rg.start;
759: }
760: if(part_length == 0){
1.311 misha 761: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 762: return;
763: }
1.311 misha 764: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 765: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 766: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 767: }else if(count != 0){
1.311 misha 768: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 769: return;
770: }
771: }
772:
773:
1.311 misha 774: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 775:
1.314 misha 776: if(add_last_modified)
1.315 misha 777: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 778:
1.267 paf 779: SAPI::send_header(r.sapi_info);
780:
781: const String& filespec=r.absolute(filename);
782:
783: size_t sent = 0;
784: if(!header_only){
785: size_t to_read = 0;
786: size_t size = 0;
787: do{
788: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
789: File_read_result read_result=file_read(r.charsets, filespec,
790: false /*as text*/, 0/*params*/, true/*fail on problem*/,
791: buf, offset, to_read);
792: to_read=read_result.length;
793: if(to_read == 0)
794: break;
795: offset += to_read;
796:
797: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
798: sent += size;
799: if(size != to_read)
800: break;
801: part_length -= to_read;
802: }while(part_length);
803: }
804: }
805:
1.248 paf 806: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 807: // header: cookies
1.248 paf 808: cookie.output_result(sapi_info);
1.51 paf 809:
1.314 misha 810: // _file_ content-type might be specified
1.267 paf 811: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 812:
1.314 misha 813: // Content-Disposition
1.267 paf 814: Value* vfile_name=body_file->fields().get(name_name);
815: if(!vfile_name) {
816: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 817: if(vfile_name) {
818: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 819: if(char *after_slash=rsplit(name_cstr, '\\'))
820: name_cstr=after_slash;
821: if(char *after_slash=rsplit(name_cstr, '/'))
822: name_cstr=after_slash;
1.327 misha 823: vfile_name=new VString(*new String(name_cstr));
1.274 paf 824: }
1.267 paf 825: }
826: if(vfile_name) {
827: const String& sfile_name=vfile_name->as_string();
828: if(sfile_name!=NONAME_DAT) {
1.283 misha 829: VHash& hash=*new VHash();
830: HashStringValue &h=hash.hash();
1.288 misha 831: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.327 misha 832: h.put(content_disposition_filename_name, new VString(String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 833:
1.311 misha 834: response.fields().put(content_disposition, &hash);
1.267 paf 835:
836: if(!body_file_content_type)
837: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 838: }
1.267 paf 839: }
840:
1.312 misha 841: // set Content-Type
1.314 misha 842: if(body_file_content_type) {
843: // body file content type
844: response.fields().put(content_type_name, body_file_content_type);
845: } else {
846: // default content type
847: response.fields().put_dont_replace(content_type_name, new VString(*new String(DEFAULT_CONTENT_TYPE)));
848: }
1.312 misha 849:
1.314 misha 850: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 851: Add_header_attribute_info info(*this);
1.281 paf 852: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 853:
1.267 paf 854: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 855: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 856: const String& sresponse_body_file=vresponse_body_file->as_string();
857: size_t content_length=0;
858: time_t atime=0, mtime=0, ctime=0;
859: file_stat(absolute(sresponse_body_file),
860: content_length,
861: atime, mtime, ctime);
862:
863: VDate* vdate=0;
864: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 865: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 866: vdate=static_cast<VDate*>(vdatep);
867: else
1.286 misha 868: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 869: }
870: if(!vdate)
871: vdate=new VDate(mtime);
1.62 paf 872:
1.267 paf 873: output_pieces(*this, header_only,
874: sresponse_body_file,
875: content_length,
876: *vdate,
877: info.add_last_modified);
878: } else {
1.314 misha 879: if(body_file_content_type)
880: if(HashStringValue *hash=body_file_content_type->get_hash())
881: body_file_content_type=hash->get(value_name);
882:
1.267 paf 883: output_sole_piece(*this, header_only,
884: *body_file, body_file_content_type);
885: }
1.50 paf 886: }
1.104 paf 887:
1.328 misha 888: const String& Request::mime_type_of(const String* file_name) {
889: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
890: }
891:
1.248 paf 892: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 893: if(mime_types)
1.248 paf 894: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
895: String sext(++cext);
1.246 paf 896: Table::Action_options options;
1.248 paf 897: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
1.313 misha 898: if(const String* result=mime_types->item(1))
899: return *result;
1.104 paf 900: else
1.286 misha 901: throw Exception(PARSER_RUNTIME,
1.248 paf 902: 0,
1.212 paf 903: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 904: }
1.248 paf 905:
906: return *new String("application/octet-stream");
907: }
908:
1.318 misha 909: const String* Request::get_used_filename(uint file_no){
910: if(file_no < file_list.count())
911: return new String(file_list[file_no], String::L_TAINTED);
912: return 0;
913: }
914:
1.248 paf 915: #ifdef XML
1.280 paf 916: xmlChar* Request::transcode(const String& s) {
1.248 paf 917: return charsets.source().transcode(s);
918: }
919:
1.280 paf 920: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 921: return charsets.source().transcode(s);
922: }
923:
1.280 paf 924: const String& Request::transcode(const xmlChar* s) {
1.248 paf 925: return charsets.source().transcode(s);
1.233 paf 926: }
1.248 paf 927: #endif
928:
929:
930: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
931: Trace result;
932: if(!is_empty()) {
933: result=bottom_value();
934: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 935: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 936: fbottom++;
937: } else if(result.name()==problem_source) // it is that same guy?
938: fbottom++; // throw away that trace
1.279 paf 939: else {
940: // stack top contains not us,
941: // leaving result intact
942: // it would help ^throw
943: }
1.248 paf 944: }
945:
946: return result;
947: }
948:
949: Request::Exception_details Request::get_details(const Exception& e) {
950: const String* problem_source=e.problem_source();
951: Trace trace=exception_trace.extract_origin(problem_source);
952:
953: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
954:
955: // $.type
956: if(const char* type=e.type(true))
957: hash.put(exception_type_part_name, new VString(*new String(type)));
958:
959: // $.source
960: if(problem_source) {
1.306 misha 961: String& source=*new String(*problem_source, String::L_TAINTED);
1.248 paf 962: hash.put(exception_source_part_name, new VString(source));
963: }
964:
965: // $.file lineno colno
966: if(trace) {
967: const Operation::Origin origin=trace.origin();
1.263 paf 968: hash.put(String::Body("file"),
1.248 paf 969: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 970: hash.put(String::Body("lineno"), new VInt(1+origin.line));
971: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 972: }
973:
974: // $.comment
975: if(const char* comment=e.comment(true))
976: hash.put(exception_comment_part_name,
1.302 misha 977: new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 978:
979: // $.handled(0)
1.299 misha 980: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 981:
1.248 paf 982: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 983: }
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