Annotation of parser3/src/main/pa_request.C, revision 1.333
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:
1.333 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.332 2012/10/17 10:12:39 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),
1.324 misha 105: anti_endless_json_string_recoursion(0),
1.248 paf 106:
107: // public
108: method_frame(0),
109: rcontext(0),
110: wcontext(0),
111: flang(adefault_lang),
1.191 paf 112: fconnection(0),
1.307 misha 113: finterrupted(false),
114: fskip(SKIP_NOTHING),
115: fin_cycle(0),
1.248 paf 116:
117: // public
1.257 paf 118: request_info(arequest_info),
1.248 paf 119: sapi_info(asapi_info),
120: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
121:
122: main_class(VClassMAIN_create()),
1.260 paf 123: form(*new VForm(charsets, arequest_info)),
1.248 paf 124: mail(*new VMail),
125: response(*new VResponse(arequest_info, charsets)),
1.298 misha 126: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 127: console(*new VConsole),
1.248 paf 128:
129: // private
130: configure_admin_done(false),
131:
132: // private defaults
133: fdefault_lang(adefault_lang),
134: // private mime types
135: mime_types(0)
1.157 parser 136: {
1.261 paf 137: pa_register_thread_request(*this);
138:
1.248 paf 139: // file_no=0 => unknown
1.263 paf 140: file_list+=String::Body("UNKNOWN");
141: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 142:
1.178 paf 143: // maybe expire old caches
1.264 paf 144: cache_managers->maybe_expire();
1.178 paf 145:
1.157 parser 146: /// directly used
1.233 paf 147: // MAIN class, operators
1.235 paf 148: classes().put(main_class.name(), &main_class);
1.157 parser 149: // classes:
150: // table, file, random, mail, image, ...
1.248 paf 151: methoded_array().register_directly_used(*this);
1.157 parser 152:
153: /// methodless
154: // env class
1.249 paf 155: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 156: // status class
1.325 moko 157: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 158: // request class
1.294 misha 159: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form));
1.157 parser 160: // cookie class
1.249 paf 161: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 162: // console class
1.285 misha 163: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 164: /// methoded
165: // response class
1.248 paf 166: classes().put(response.get_class()->name(), &response);
1.157 parser 167:
168: /// bases used
169: // form class
1.248 paf 170: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 171: // mail class
1.248 paf 172: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 173: // math class
1.248 paf 174: {
175: Value& math=*new VMath;
176: classes().put(math.get_class()->base_class()->name(), &math);
177: }
178: // memory class
179: {
180: Value& memory=*new VMemory;
181: classes().put(memory.get_class()->base_class()->name(), &memory);
182: }
1.117 paf 183: }
1.192 paf 184:
185: Request::~Request() {
186: #ifdef XML
187: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 188: if(const char* xml_generic_errors=xmlGenericErrors()) {
189: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 190: free((void *)xml_generic_errors);
191: }
192: #endif
193: }
1.236 paf 194:
1.248 paf 195: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 196:
1.309 misha 197: Value* Request::get_class(const String& name){
198: Value* result=classes().get(name);
1.313 misha 199: if(!result)
1.309 misha 200: if(Value* value=main_class.get_element(autouse_method_name))
201: if(Junction* junction=value->get_junction())
202: if(const Method *method=junction->method) {
203: Value *vname=new VString(name);
1.322 moko 204: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 205:
206: frame.store_params(&vname, 1);
207: // we don't need the result
1.323 moko 208: execute_method(frame);
1.309 misha 209:
210: result=classes().get(name);
211: }
1.313 misha 212:
1.309 misha 213: return result;
214: }
215:
1.248 paf 216: static void load_charset(HashStringValue::key_type akey,
217: HashStringValue::value_type avalue,
218: Request_charsets* charsets) {
1.249 paf 219: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 220: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 221: }
1.248 paf 222: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 223: if(configure_admin_done)
1.286 misha 224: throw Exception(PARSER_RUNTIME,
1.248 paf 225: 0,
1.208 paf 226: "parser already configured");
227: configure_admin_done=true;
228:
1.227 paf 229: // charsets must only be specified in method_frame config
1.208 paf 230: // so that users would not interfere
231:
232: /* $MAIN:CHARSETS[
233: $.charsetname1[/full/path/to/charset/file.cfg]
234: ...
235: ]
236: */
1.308 misha 237: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.240 paf 238: if(!vcharsets->is_string())
1.248 paf 239: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 240: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 241: else
1.286 misha 242: throw Exception(PARSER_RUNTIME,
1.240 paf 243: 0,
244: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 245: }
246:
1.330 moko 247: #ifdef STRICT_VARS
1.332 moko 248: VVoid::strict_vars=false;
1.330 moko 249: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
250: if(strict_vars->is_bool())
251: VVoid::strict_vars=strict_vars->as_bool();
252: else
253: throw Exception(PARSER_RUNTIME,
254: 0,
255: "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
256: }
257: #endif
258:
1.227 paf 259: // configure method_frame options
1.208 paf 260: // until someone with less privileges have overriden them
1.248 paf 261: methoded_array().configure_admin(*this);
1.208 paf 262: }
1.150 parser 263:
1.269 paf 264: const char* Request::get_exception_cstr(
265: const Exception& e,
266: Request::Exception_details& details) {
267: #define PA_URI_FORMAT "%s: "
268: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
269: #define PA_SOURCE_FORMAT "'%s' "
270: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
271: char* result=new(PointerFreeGC) char[MAX_STRING];
272:
273: if(details.problem_source) { // do we know the guy?
274: if(details.trace) { // do whe know where he came from?
275: Operation::Origin origin=details.trace.origin();
276: snprintf(result, MAX_STRING,
277: PA_URI_FORMAT
278: PA_ORIGIN_FILE_POS_FORMAT
279: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
280: request_info.uri,
281: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
282: details.problem_source->cstr(),
283: e.comment(), e.type()
284: );
285: } else
286: snprintf(result, MAX_STRING,
287: PA_URI_FORMAT
288: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
289: request_info.uri,
290: details.problem_source->cstr(),
291: e.comment(), e.type()
292: );
293: } else
294: snprintf(result, MAX_STRING,
295: PA_URI_FORMAT
296: PA_COMMENT_TYPE_FORMAT,
297: request_info.uri,
298: e.comment(), e.type()
299: );
300:
301: return result;
302: }
1.272 paf 303:
304: void Request::configure() {
305: // configure admin options if not configured yet
306: if(!configure_admin_done)
307: configure_admin(main_class);
308:
309: // configure not-admin=user options
310: methoded_array().configure_user(*this);
311:
312: // $MAIN:MIME-TYPES
1.308 misha 313: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 314: if(Table *table=element->get_table())
315: mime_types=table;
316: }
1.64 paf 317: /**
318: load MAIN class, execute @main.
319: MAIN class consists of all the auto.p files we'd manage to find
320: plus
321: the file user requested us to process
322: all located classes become children of one another,
323: composing class we name 'MAIN'
1.180 paf 324:
325: @test log stack trace
326:
1.64 paf 327: */
1.248 paf 328: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 329: try {
1.271 paf 330: // filling mail received
331: mail.fill_received(*this);
332:
1.211 paf 333: // loading config
334: if(config_filespec) {
1.248 paf 335: const String& filespec=*new String(config_filespec);
1.318 misha 336: use_file_directly(main_class,
337: filespec,
1.248 paf 338: config_fail_on_read_problem,
339: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 340: }
1.8 paf 341:
1.72 paf 342: // loading auto.p files from document_root/..
343: // to the one beside requested file.
344: // all assigned bases from upper dir
345: {
1.248 paf 346: const char* after=request_info.path_translated;
347: size_t drlen=strlen(request_info.document_root);
348: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 349: after+=drlen;
350: if(after[-1]=='/')
351: --after;
352: }
353:
1.248 paf 354: while(const char* before=strchr(after, '/')) {
355: String& sfile_spec=*new String;
356: if(after!=request_info.path_translated) {
357: sfile_spec.append_strdup(
358: request_info.path_translated, before-request_info.path_translated,
359: String::L_CLEAN);
1.152 parser 360: sfile_spec << "/" AUTO_FILE_NAME;
361:
1.318 misha 362: use_file_directly(main_class,
1.248 paf 363: sfile_spec,
364: true /*fail on read problem*/,
365: false /*but ignore absence, sole user*/);
1.115 paf 366: }
1.317 misha 367: for(after=before+1;*after=='/';after++);
1.72 paf 368: }
369: }
1.34 paf 370:
1.272 paf 371: try {
372: // compile requested file
373: String& spath_translated=*new String;
374: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 375: use_file_directly(main_class, spath_translated);
1.272 paf 376:
377: configure();
378: } catch(...) {
379: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
380: rethrow;
381: }
1.25 paf 382:
383: // execute @main[]
1.248 paf 384: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 385: if(!body_string)
1.286 misha 386: throw Exception(PARSER_RUNTIME,
1.248 paf 387: 0,
1.145 parser 388: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 389:
1.250 paf 390: // extract response body
391: Value* body_value=response.fields().get(download_name); // $response:download?
392: bool as_attachment=body_value!=0;
393: if(!body_value)
394: body_value=response.fields().get(body_name); // $response:body
395: if(!body_value)
396: body_value=new VString(*body_string); // just result of ^main[]
397:
1.119 paf 398: // @postprocess
1.308 misha 399: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 400: if(Junction* junction=value->get_junction())
1.91 paf 401: if(const Method *method=junction->method) {
402: // preparing to pass parameters to
1.119 paf 403: // @postprocess[data]
1.322 moko 404: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 405:
1.300 misha 406: frame.store_params(&body_value, 1);
1.323 moko 407: execute_method(frame);
408:
409: body_value=&frame.result().as_value();
1.91 paf 410: }
1.90 paf 411:
1.303 misha 412: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 413:
1.45 paf 414: // OK. write out the result
1.248 paf 415: output_result(body_file, header_only, as_attachment);
1.183 paf 416:
1.171 parser 417: } catch(const Exception& e) { // request handling problem
1.268 paf 418: try {
1.76 paf 419: // we're returning not result, but error explanation
1.269 paf 420:
421: Request::Exception_details details=get_details(e);
422: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 423:
424: // reset language to default
425: flang=fdefault_lang;
426:
427: // reset response
428: response.fields().clear();
429:
430: // this is what we'd return in $response:body
431: const String* body_string=0;
432:
433: // maybe we'd be lucky enough as to report an error
434: // in a gracefull way...
1.308 misha 435: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 436: if(Junction* junction=value->get_junction()) {
437: if(const Method *method=junction->method) {
1.287 misha 438: // preparing to pass parameters to
439: // @unhandled_exception[exception;stack]
440:
441: // $stack[^table::create{name file lineno colno}]
442: Table::columns_type stack_trace_columns(new ArrayString);
443: *stack_trace_columns+=new String("name");
444: *stack_trace_columns+=new String("file");
445: *stack_trace_columns+=new String("lineno");
446: *stack_trace_columns+=new String("colno");
447: Table& stack_trace=*new Table(stack_trace_columns);
448: if(!exception_trace.is_empty()/*signed!*/)
449: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
450: Trace trace=exception_trace.get(i);
451: Table::element_type row(new ArrayString);
452:
453: *row+=trace.name(); // name column
454: Operation::Origin origin=trace.origin();
455: if(origin.file_no) {
456: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
457: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
458: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
459: }
460: stack_trace+=row;
461: }
462:
1.323 moko 463: // future $response:body=
464: // execute ^unhandled_exception[exception;stack]
465: 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)
466:
467: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 468: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 469:
1.300 misha 470: frame.store_params(params, 2);
1.323 moko 471: execute_method(frame);
1.287 misha 472:
1.323 moko 473: body_string=&frame.result().as_string();
1.233 paf 474: }
1.30 paf 475: }
1.258 paf 476: }
477:
478: if(!body_string) { // couldn't report an error beautifully?
479: // doing that ugly
480:
481: // future $response:content-type
1.314 misha 482: response.fields().put(http_content_type, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 483: // future $response:body
1.269 paf 484: body_string=new String(exception_cstr);
1.258 paf 485: }
1.41 paf 486:
1.258 paf 487: VString body_vstring(*body_string);
1.303 misha 488: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 489:
1.273 paf 490: // conditionally log it
491: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
492: if(!vhandled || !vhandled->as_bool()) {
493: SAPI::log(sapi_info, "%s", exception_cstr);
494: }
495:
1.258 paf 496: // ERROR. write it out
497: output_result(body_file, header_only, false);
1.287 misha 498:
1.273 paf 499: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 500: Request::Exception_details details=get_details(e);
501: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 502: // unconditionally log the beast
503: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 504:
505: throw Exception(0,
506: 0,
507: "in %s",
508: exception_cstr);
1.268 paf 509: }
1.1 paf 510: }
511: }
512:
1.266 paf 513: uint Request::register_file(String::Body file_spec) {
1.248 paf 514: file_list+=file_spec;
515: return file_list.count()-1;
516: }
517:
1.318 misha 518: void Request::use_file_directly(VStateless_class& aclass,
519: const String& file_spec,
520: bool fail_on_read_problem,
521: bool fail_on_file_absence) {
522:
1.73 paf 523: // cyclic dependence check
1.318 misha 524: if(used_files.get(file_spec))
1.248 paf 525: return;
1.318 misha 526: used_files.put(file_spec, true);
527:
528: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
529: if(!entry_exists(file_spec))
530: return;
531:
532: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
533: use_buf(aclass, source, 0, register_file(file_spec));
534: }
535:
536:
537: void Request::use_file(VStateless_class& aclass,
538: const String& file_name,
539: const String* use_filespec/*absolute*/) {
1.73 paf 540:
1.326 misha 541: if(file_name.is_empty())
542: throw Exception(PARSER_RUNTIME,
543: 0,
544: "usage failed - no filename was specified");
545:
1.318 misha 546: const String* filespec=0;
547:
548: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
549: filespec=&absolute(file_name);
550: else if(use_filespec){ // search in current dir first
1.331 misha 551: size_t last_slash_pos=use_filespec->strrpbrk("/");
552: if(last_slash_pos!=STRING_NOT_FOUND)
553: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 554: }
555:
556: if(!filespec){
557: // prevent multiple scan CLASS_PATH for searching one file
558: if(searched_along_class_path.get(file_name))
559: return;
560: searched_along_class_path.put(file_name, true);
1.308 misha 561: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 562: if(element->is_string()) {
1.318 misha 563: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 564: } else if(Table *table=element->get_table()) {
1.318 misha 565: for(size_t i=table->count(); i--; ) {
1.248 paf 566: const String& path=*(*table->get(i))[0];
1.318 misha 567: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 568: break; // found along class_path
569: }
570: } else
1.286 misha 571: throw Exception(PARSER_RUNTIME,
1.233 paf 572: 0,
573: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 574: if(!filespec)
1.286 misha 575: throw Exception(PARSER_RUNTIME,
1.233 paf 576: &file_name,
577: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 578: } else
1.286 misha 579: throw Exception(PARSER_RUNTIME,
1.153 parser 580: &file_name,
1.203 paf 581: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 582: }
1.230 paf 583:
1.318 misha 584: use_file_directly(aclass, *filespec);
1.16 paf 585: }
586:
1.208 paf 587:
1.248 paf 588: void Request::use_buf(VStateless_class& aclass,
1.318 misha 589: const char* source, const String* main_alias,
590: uint file_no,
591: int line_no_offset) {
1.233 paf 592: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 593: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 594: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 595: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 596:
1.295 misha 597: // compile loaded classes
598: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 599:
1.248 paf 600: VString* vfilespec=
601: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 602:
603: for(size_t i=0; i<cclasses.count(); i++){
604: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 605:
606: // locate and execute possible @conf[] static
1.295 misha 607: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
608: conf_method_name, vfilespec,
609: false/*no string result needed*/);
610: if(executed.method)
611: configure_admin(cclass/*, executed.method->name*/);
612:
613: // locate and execute possible @auto[] static
614: execute_nonvirtual_method(cclass,
615: auto_method_name, vfilespec,
616: false/*no result needed*/);
617: }
1.19 paf 618: }
619:
1.248 paf 620: const String& Request::relative(const char* apath, const String& relative_name) {
621: char *hpath=strdup(apath);
622: String& result=*new String;
623: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 624: result << hpath << "/";
1.248 paf 625: result << relative_name;
626: return result;
1.19 paf 627: }
628:
1.77 paf 629: const String& Request::absolute(const String& relative_name) {
1.217 paf 630: if(relative_name.first_char()=='/') {
1.248 paf 631: String& result=*new String(strdup(request_info.document_root));
1.104 paf 632: result << relative_name;
1.19 paf 633: return result;
634: } else
1.248 paf 635: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 636: #ifdef WIN32
637: || relative_name.pos(":")==1 // DRIVE:
638: || relative_name.starts_with("\\\\") // UNC1
639: || relative_name.starts_with("//") // UNC2
640: #endif
641: )
642: return relative_name;
643: else
1.248 paf 644: return relative(request_info.path_translated, relative_name);
1.1 paf 645: }
1.45 paf 646:
1.267 paf 647: #ifndef DOXYGEN
648: class Add_header_attribute_info
649: {
650: public:
651: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
652: Request& r;
653: bool add_last_modified;
654: };
655: #endif
1.248 paf 656: static void add_header_attribute(
1.290 misha 657: HashStringValue::key_type name,
658: HashStringValue::value_type value,
1.267 paf 659: Add_header_attribute_info* info) {
1.290 misha 660: if(name==BODY_NAME
661: || name==DOWNLOAD_NAME
662: || name==CHARSET_NAME)
1.101 paf 663: return;
1.290 misha 664:
1.316 misha 665: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 666:
1.267 paf 667: SAPI::add_header_attribute(info->r.sapi_info,
1.303 misha 668: aname,
1.316 misha 669: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 670: );
1.267 paf 671:
1.290 misha 672: if(strcasecmp(aname, "last-modified")==0)
1.303 misha 673: info->add_last_modified=false;
1.267 paf 674: }
675:
676: static void output_sole_piece(Request& r,
677: bool header_only,
678: VFile& body_file,
679: Value* body_file_content_type) {
680: // transcode text body when "text/*" or simple result
681: String::C output(body_file.value_ptr(), body_file.value_size());
682: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
683: output=Charset::transcode(output,
684: r.charsets.source(),
685: r.charsets.client());
686:
1.311 misha 687: // prepare header: Content-Length
688: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 689:
690: // send header
691: SAPI::send_header(r.sapi_info);
692:
693: // send body
694: if(!header_only)
695: SAPI::send_body(r.sapi_info, output.str, output.length);
696: }
697:
698: #ifndef DOXYGEN
699: struct Range
700: {
701: size_t start;
702: size_t end;
703: };
704: #endif
1.313 misha 705: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 706: const char *p = s->cstr();
707: if(s->starts_with("bytes="))
708: p += 6;
709: Range r;
710: while(*p){
711: r.start = (size_t)-1;
712: r.end = (size_t)-1;
713: if(*p >= '0' && *p <= '9'){
714: r.start = atol(p);
715: while(*p>='0' && *p<='9') ++p;
716: }
717: if(*p++ != '-') break;
718: if(*p >= '0' && *p <= '9'){
719: r.end = atol(p);
720: while(*p>='0' && *p<='9') ++p;
721: }
722: if(*p == ',') ++p;
723: ar += r;
724: }
1.101 paf 725: }
1.267 paf 726:
727: static void output_pieces(Request& r,
728: bool header_only,
729: const String& filename,
730: size_t content_length,
731: Value& date,
732: bool add_last_modified)
733: {
1.315 misha 734: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 735:
1.267 paf 736: const size_t BUFSIZE = 10*0x400;
737: char buf[BUFSIZE];
738: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
739: size_t offset=0;
740: size_t part_length=content_length;
741: if(range){
742: Array<Range> ar;
743: parse_range(new String(range), ar);
744: size_t count = ar.count();
745: if(count == 1){
746: Range &rg = ar.get_ref(0);
747: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 748: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 749: return;
750: }
751: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
752: rg.start = content_length - rg.end;
753: rg.end = content_length;
754: offset += rg.start;
755: part_length = rg.end-rg.start;
756: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
757: rg.end = content_length-1;
758: offset += rg.start;
759: part_length -= rg.start;
760: }
761: if(part_length == 0){
1.311 misha 762: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 763: return;
764: }
1.311 misha 765: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 766: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 767: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 768: }else if(count != 0){
1.311 misha 769: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 770: return;
771: }
772: }
773:
774:
1.311 misha 775: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 776:
1.314 misha 777: if(add_last_modified)
1.315 misha 778: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 779:
1.267 paf 780: SAPI::send_header(r.sapi_info);
781:
782: const String& filespec=r.absolute(filename);
783:
784: size_t sent = 0;
785: if(!header_only){
786: size_t to_read = 0;
787: size_t size = 0;
788: do{
789: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
790: File_read_result read_result=file_read(r.charsets, filespec,
791: false /*as text*/, 0/*params*/, true/*fail on problem*/,
792: buf, offset, to_read);
793: to_read=read_result.length;
794: if(to_read == 0)
795: break;
796: offset += to_read;
797:
798: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
799: sent += size;
800: if(size != to_read)
801: break;
802: part_length -= to_read;
803: }while(part_length);
804: }
805: }
806:
1.248 paf 807: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 808: // header: cookies
1.248 paf 809: cookie.output_result(sapi_info);
1.51 paf 810:
1.314 misha 811: // _file_ content-type might be specified
1.267 paf 812: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 813:
1.314 misha 814: // Content-Disposition
1.267 paf 815: Value* vfile_name=body_file->fields().get(name_name);
816: if(!vfile_name) {
817: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 818: if(vfile_name) {
819: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 820: if(char *after_slash=rsplit(name_cstr, '\\'))
821: name_cstr=after_slash;
822: if(char *after_slash=rsplit(name_cstr, '/'))
823: name_cstr=after_slash;
1.327 misha 824: vfile_name=new VString(*new String(name_cstr));
1.274 paf 825: }
1.267 paf 826: }
827: if(vfile_name) {
828: const String& sfile_name=vfile_name->as_string();
829: if(sfile_name!=NONAME_DAT) {
1.283 misha 830: VHash& hash=*new VHash();
831: HashStringValue &h=hash.hash();
1.288 misha 832: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.327 misha 833: h.put(content_disposition_filename_name, new VString(String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 834:
1.311 misha 835: response.fields().put(content_disposition, &hash);
1.267 paf 836:
837: if(!body_file_content_type)
838: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 839: }
1.267 paf 840: }
841:
1.312 misha 842: // set Content-Type
1.314 misha 843: if(body_file_content_type) {
844: // body file content type
845: response.fields().put(content_type_name, body_file_content_type);
846: } else {
847: // default content type
848: response.fields().put_dont_replace(content_type_name, new VString(*new String(DEFAULT_CONTENT_TYPE)));
849: }
1.312 misha 850:
1.314 misha 851: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 852: Add_header_attribute_info info(*this);
1.281 paf 853: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 854:
1.267 paf 855: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 856: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 857: const String& sresponse_body_file=vresponse_body_file->as_string();
858: size_t content_length=0;
859: time_t atime=0, mtime=0, ctime=0;
860: file_stat(absolute(sresponse_body_file),
861: content_length,
862: atime, mtime, ctime);
863:
864: VDate* vdate=0;
865: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 866: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 867: vdate=static_cast<VDate*>(vdatep);
868: else
1.286 misha 869: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 870: }
871: if(!vdate)
872: vdate=new VDate(mtime);
1.62 paf 873:
1.267 paf 874: output_pieces(*this, header_only,
875: sresponse_body_file,
876: content_length,
877: *vdate,
878: info.add_last_modified);
879: } else {
1.314 misha 880: if(body_file_content_type)
881: if(HashStringValue *hash=body_file_content_type->get_hash())
882: body_file_content_type=hash->get(value_name);
883:
1.267 paf 884: output_sole_piece(*this, header_only,
885: *body_file, body_file_content_type);
886: }
1.50 paf 887: }
1.104 paf 888:
1.328 misha 889: const String& Request::mime_type_of(const String* file_name) {
890: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
891: }
892:
1.248 paf 893: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 894: if(mime_types)
1.248 paf 895: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
896: String sext(++cext);
1.246 paf 897: Table::Action_options options;
1.248 paf 898: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
1.313 misha 899: if(const String* result=mime_types->item(1))
900: return *result;
1.104 paf 901: else
1.286 misha 902: throw Exception(PARSER_RUNTIME,
1.248 paf 903: 0,
1.212 paf 904: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 905: }
1.248 paf 906:
907: return *new String("application/octet-stream");
908: }
909:
1.318 misha 910: const String* Request::get_used_filename(uint file_no){
911: if(file_no < file_list.count())
912: return new String(file_list[file_no], String::L_TAINTED);
913: return 0;
914: }
915:
1.248 paf 916: #ifdef XML
1.280 paf 917: xmlChar* Request::transcode(const String& s) {
1.248 paf 918: return charsets.source().transcode(s);
919: }
920:
1.280 paf 921: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 922: return charsets.source().transcode(s);
923: }
924:
1.280 paf 925: const String& Request::transcode(const xmlChar* s) {
1.248 paf 926: return charsets.source().transcode(s);
1.233 paf 927: }
1.248 paf 928: #endif
929:
930:
931: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
932: Trace result;
933: if(!is_empty()) {
934: result=bottom_value();
935: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 936: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 937: fbottom++;
938: } else if(result.name()==problem_source) // it is that same guy?
939: fbottom++; // throw away that trace
1.279 paf 940: else {
941: // stack top contains not us,
942: // leaving result intact
943: // it would help ^throw
944: }
1.248 paf 945: }
946:
947: return result;
948: }
949:
950: Request::Exception_details Request::get_details(const Exception& e) {
951: const String* problem_source=e.problem_source();
952: Trace trace=exception_trace.extract_origin(problem_source);
953:
954: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
955:
956: // $.type
957: if(const char* type=e.type(true))
958: hash.put(exception_type_part_name, new VString(*new String(type)));
959:
960: // $.source
961: if(problem_source) {
1.306 misha 962: String& source=*new String(*problem_source, String::L_TAINTED);
1.248 paf 963: hash.put(exception_source_part_name, new VString(source));
964: }
965:
966: // $.file lineno colno
967: if(trace) {
968: const Operation::Origin origin=trace.origin();
1.263 paf 969: hash.put(String::Body("file"),
1.248 paf 970: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 971: hash.put(String::Body("lineno"), new VInt(1+origin.line));
972: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 973: }
974:
975: // $.comment
976: if(const char* comment=e.comment(true))
977: hash.put(exception_comment_part_name,
1.302 misha 978: new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 979:
980: // $.handled(0)
1.299 misha 981: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 982:
1.248 paf 983: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 984: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to pa_request.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / main