Annotation of parser3/src/main/pa_request.C, revision 1.293
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.275 paf 4: Copyright (c) 2001-2005 ArtLebedev Group (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:
1.293 ! misha 8: static const char * const IDENT_REQUEST_C="$Date: 2008-02-19 07:52:24 $";
1.1 paf 9:
1.69 paf 10: #include "pa_sapi.h"
1.53 paf 11: #include "pa_common.h"
1.1 paf 12: #include "pa_request.h"
1.3 paf 13: #include "pa_wwrapper.h"
14: #include "pa_vclass.h"
1.31 paf 15: #include "pa_globals.h"
1.30 paf 16: #include "pa_vint.h"
1.293 ! misha 17: #include "pa_vmethod_frame_global.h"
1.32 paf 18: #include "pa_types.h"
1.248 paf 19: #include "pa_venv.h"
20: #include "pa_vmath.h"
21: #include "pa_vstatus.h"
22: #include "pa_vrequest.h"
1.78 paf 23: #include "pa_vtable.h"
1.90 paf 24: #include "pa_vfile.h"
1.147 parser 25: #include "pa_dictionary.h"
1.208 paf 26: #include "pa_charset.h"
1.186 paf 27: #include "pa_charsets.h"
1.248 paf 28: #include "pa_cache_managers.h"
29: #include "pa_vmail.h"
30: #include "pa_vform.h"
31: #include "pa_vcookie.h"
32: #include "pa_vresponse.h"
33: #include "pa_vmemory.h"
1.253 paf 34: #include "pa_vconsole.h"
1.267 paf 35: #include "pa_vdate.h"
1.159 parser 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"
52: #define BODY_NAME "body"
53: #define EXCEPTION_TYPE_PART_NAME "type"
54: #define EXCEPTION_SOURCE_PART_NAME "source"
55: #define EXCEPTION_COMMENT_PART_NAME "comment"
56:
57: // globals
58:
59: const String main_method_name(MAIN_METHOD_NAME);
60: const String auto_method_name(AUTO_METHOD_NAME);
1.289 misha 61: const String content_transfer_encoding_name(CONTENT_TRANSFER_ENCODING_NAME);
1.248 paf 62: const String content_disposition_name(CONTENT_DISPOSITION_NAME);
1.282 misha 63: const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.288 misha 64: const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
1.248 paf 65: const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME);
66: const String body_name(BODY_NAME);
67: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
68: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
69: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
70: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
71:
72: // defines for statics
73:
74: #define CHARSETS_NAME "CHARSETS"
75: #define MIME_TYPES_NAME "MIME-TYPES"
76: #define ORIGINS_MODE_NAME "ORIGINS"
77: #define CONF_METHOD_NAME "conf"
78: #define POST_PROCESS_METHOD_NAME "postprocess"
79: #define DOWNLOAD_NAME "download"
80: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 81: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 82:
83: // statics
84:
85: static const String charsets_name(CHARSETS_NAME);
86: static const String main_class_name(MAIN_CLASS_NAME);
87: static const String mime_types_name(MIME_TYPES_NAME);
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,
1.252 paf 102: String::Language adefault_lang, bool status_allowed):
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),
1.281 paf 112: finterrupted(false),fskip(SKIP_NOTHING),
1.248 paf 113:
114: // public
1.183 paf 115: #ifdef RESOURCES_DEBUG
1.248 paf 116: sql_connect_time(0),
117: sql_request_time(0),
118: #endif
119:
120: // public
1.257 paf 121: request_info(arequest_info),
1.248 paf 122: sapi_info(asapi_info),
123: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
124:
125: main_class(VClassMAIN_create()),
1.260 paf 126: form(*new VForm(charsets, arequest_info)),
1.248 paf 127: mail(*new VMail),
128: response(*new VResponse(arequest_info, charsets)),
129: cookie(*new VCookie),
1.285 misha 130: console(*new VConsole),
1.248 paf 131:
132: // private
133: configure_admin_done(false),
134:
135: // private defaults
136: fdefault_lang(adefault_lang),
137: // private mime types
138: mime_types(0)
1.157 parser 139: {
1.261 paf 140: pa_register_thread_request(*this);
141:
1.248 paf 142: // file_no=0 => unknown
1.263 paf 143: file_list+=String::Body("UNKNOWN");
144: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 145:
1.178 paf 146: // maybe expire old caches
1.264 paf 147: cache_managers->maybe_expire();
1.178 paf 148:
1.157 parser 149: /// directly used
1.233 paf 150: // MAIN class, operators
1.235 paf 151: classes().put(main_class.name(), &main_class);
1.157 parser 152: // classes:
153: // table, file, random, mail, image, ...
1.248 paf 154: methoded_array().register_directly_used(*this);
1.157 parser 155:
156: /// methodless
157: // env class
1.249 paf 158: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 159: // status class
1.179 paf 160: if(status_allowed)
1.249 paf 161: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 162: // request class
1.249 paf 163: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets));
1.157 parser 164: // cookie class
1.249 paf 165: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 166: // console class
1.285 misha 167: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 168: /// methoded
169: // response class
1.248 paf 170: classes().put(response.get_class()->name(), &response);
1.157 parser 171:
172: /// bases used
173: // form class
1.248 paf 174: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 175: // mail class
1.248 paf 176: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 177: // math class
1.248 paf 178: {
179: Value& math=*new VMath;
180: classes().put(math.get_class()->base_class()->name(), &math);
181: }
182: // memory class
183: {
184: Value& memory=*new VMemory;
185: classes().put(memory.get_class()->base_class()->name(), &memory);
186: }
1.117 paf 187: }
1.192 paf 188:
189: Request::~Request() {
190: #ifdef XML
191: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 192: if(const char* xml_generic_errors=xmlGenericErrors()) {
193: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 194: free((void *)xml_generic_errors);
195: }
196: #endif
197: }
1.236 paf 198:
1.248 paf 199: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 200:
1.248 paf 201: static void load_charset(HashStringValue::key_type akey,
202: HashStringValue::value_type avalue,
203: Request_charsets* charsets) {
1.249 paf 204: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 205: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 206: }
1.248 paf 207: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 208: if(configure_admin_done)
1.286 misha 209: throw Exception(PARSER_RUNTIME,
1.248 paf 210: 0,
1.208 paf 211: "parser already configured");
212: configure_admin_done=true;
213:
1.227 paf 214: // charsets must only be specified in method_frame config
1.208 paf 215: // so that users would not interfere
216:
217: /* $MAIN:CHARSETS[
218: $.charsetname1[/full/path/to/charset/file.cfg]
219: ...
220: ]
221: */
1.248 paf 222: if(Value* vcharsets=conf_class.get_element(charsets_name, conf_class, false)) {
1.240 paf 223: if(!vcharsets->is_string())
1.248 paf 224: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 225: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 226: else
1.286 misha 227: throw Exception(PARSER_RUNTIME,
1.240 paf 228: 0,
229: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 230: }
231:
1.227 paf 232: // configure method_frame options
1.208 paf 233: // until someone with less privileges have overriden them
1.248 paf 234: methoded_array().configure_admin(*this);
1.208 paf 235: }
1.150 parser 236:
1.269 paf 237: const char* Request::get_exception_cstr(
238: const Exception& e,
239: Request::Exception_details& details) {
240: #define PA_URI_FORMAT "%s: "
241: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
242: #define PA_SOURCE_FORMAT "'%s' "
243: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
244: char* result=new(PointerFreeGC) char[MAX_STRING];
245:
246: if(details.problem_source) { // do we know the guy?
247: if(details.trace) { // do whe know where he came from?
248: Operation::Origin origin=details.trace.origin();
249: snprintf(result, MAX_STRING,
250: PA_URI_FORMAT
251: PA_ORIGIN_FILE_POS_FORMAT
252: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
253: request_info.uri,
254: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
255: details.problem_source->cstr(),
256: e.comment(), e.type()
257: );
258: } else
259: snprintf(result, MAX_STRING,
260: PA_URI_FORMAT
261: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
262: request_info.uri,
263: details.problem_source->cstr(),
264: e.comment(), e.type()
265: );
266: } else
267: snprintf(result, MAX_STRING,
268: PA_URI_FORMAT
269: PA_COMMENT_TYPE_FORMAT,
270: request_info.uri,
271: e.comment(), e.type()
272: );
273:
274: return result;
275: }
1.272 paf 276:
277: void Request::configure() {
278: // configure admin options if not configured yet
279: if(!configure_admin_done)
280: configure_admin(main_class);
281:
282: // configure not-admin=user options
283: methoded_array().configure_user(*this);
284:
285: // $MAIN:MIME-TYPES
286: if(Value* element=main_class.get_element(mime_types_name, main_class, false))
287: if(Table *table=element->get_table())
288: mime_types=table;
289: }
1.64 paf 290: /**
291: load MAIN class, execute @main.
292: MAIN class consists of all the auto.p files we'd manage to find
293: plus
294: the file user requested us to process
295: all located classes become children of one another,
296: composing class we name 'MAIN'
1.180 paf 297:
298: @test log stack trace
299:
1.64 paf 300: */
1.248 paf 301: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.183 paf 302: #ifdef RESOURCES_DEBUG
303: //measures
304: struct timeval mt[10];
305: //measure:before all
306: gettimeofday(&mt[0],NULL);
307: #endif
1.169 parser 308: try {
1.271 paf 309: // filling cookies
310: cookie.fill_fields(request_info);
311:
312: // filling mail received
313: mail.fill_received(*this);
314:
1.211 paf 315: // loading config
316: if(config_filespec) {
1.248 paf 317: const String& filespec=*new String(config_filespec);
1.233 paf 318: use_file(main_class,
1.248 paf 319: filespec, 0 /*main_alias*/,
320: true /*ignore class_path*/,
321: config_fail_on_read_problem,
322: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 323: }
1.8 paf 324:
1.72 paf 325: // loading auto.p files from document_root/..
326: // to the one beside requested file.
327: // all assigned bases from upper dir
328: {
1.248 paf 329: const char* after=request_info.path_translated;
330: size_t drlen=strlen(request_info.document_root);
331: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 332: after+=drlen;
333: if(after[-1]=='/')
334: --after;
335: }
336:
1.248 paf 337: while(const char* before=strchr(after, '/')) {
338: String& sfile_spec=*new String;
339: if(after!=request_info.path_translated) {
340: sfile_spec.append_strdup(
341: request_info.path_translated, before-request_info.path_translated,
342: String::L_CLEAN);
1.152 parser 343: sfile_spec << "/" AUTO_FILE_NAME;
344:
1.233 paf 345: use_file(main_class,
1.248 paf 346: sfile_spec,
347: 0 /*main_alias*/,
348: true /*ignore class_path*/,
349: true /*fail on read problem*/,
350: false /*but ignore absence, sole user*/);
1.115 paf 351: }
352: after=before+1;
1.72 paf 353: }
354: }
1.34 paf 355:
1.272 paf 356: try {
357: // compile requested file
358: String& spath_translated=*new String;
359: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
360: use_file(main_class,
361: spath_translated,
362: 0 /*main_alias*/,
363: true /*ignore class_path*/);
364:
365: configure();
366: } catch(...) {
367: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
368: rethrow;
369: }
1.25 paf 370:
1.183 paf 371: #ifdef RESOURCES_DEBUG
372: //measure:after compile
373: gettimeofday(&mt[1],NULL);
374: #endif
1.25 paf 375: // execute @main[]
1.248 paf 376: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 377: if(!body_string)
1.286 misha 378: throw Exception(PARSER_RUNTIME,
1.248 paf 379: 0,
1.145 parser 380: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 381:
1.183 paf 382: #ifdef RESOURCES_DEBUG
383: //measure:after main
384: gettimeofday(&mt[2],NULL);
385: #endif
386:
1.250 paf 387: // extract response body
388: Value* body_value=response.fields().get(download_name); // $response:download?
389: bool as_attachment=body_value!=0;
390: if(!body_value)
391: body_value=response.fields().get(body_name); // $response:body
392: if(!body_value)
393: body_value=new VString(*body_string); // just result of ^main[]
1.276 paf 394: // ensure that body_value has no just L_TAINTED parts left
395: if(body_value->is_string())
396: {
397: String& untainted=*new String();
398: untainted.append(*body_value->get_string(), flang);
399: body_value=new VString(untainted);
400: }
1.250 paf 401:
1.119 paf 402: // @postprocess
1.248 paf 403: if(Value* value=main_class.get_element(post_process_method_name, main_class, false))
404: if(Junction* junction=value->get_junction())
1.91 paf 405: if(const Method *method=junction->method) {
406: // preparing to pass parameters to
1.119 paf 407: // @postprocess[data]
1.293 ! misha 408: VMethodFrameGlobal frame(/*method->name, */ *junction, 0/*no parent*/);
1.233 paf 409: frame.set_self(main_class);
1.91 paf 410:
1.250 paf 411: frame.store_param(*body_value);
412: body_value=&execute_method(frame, *method).as_value();
1.91 paf 413: }
1.90 paf 414:
1.250 paf 415: VFile* body_file=body_value->as_vfile(
1.248 paf 416: String::L_UNSPECIFIED, &charsets);
1.41 paf 417:
1.183 paf 418: #ifdef RESOURCES_DEBUG
419: //measure:after postprocess
420: gettimeofday(&mt[3],NULL);
421: #endif
422:
1.45 paf 423: // OK. write out the result
1.248 paf 424: output_result(body_file, header_only, as_attachment);
1.183 paf 425:
426: #ifdef RESOURCES_DEBUG
427: //measure:after output_result
428: gettimeofday(&mt[9],NULL);
429: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
430:
431: double t[10];
432: for(int i=0;i<10;i++)
433: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
434: //measure:log2 compile,main,postprocess,output
1.248 paf 435: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
436: request_info.uri,
1.183 paf 437: t[1]-t[0],
438: t[2]-t[1],
439: t[3]-t[2],
440: sql_connect_time,sql_request_time,
441: t[9]-t[3]
442: );
443: #endif
1.171 parser 444: } catch(const Exception& e) { // request handling problem
1.268 paf 445: try {
1.76 paf 446: // we're returning not result, but error explanation
1.269 paf 447:
448: Request::Exception_details details=get_details(e);
449: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 450:
451: // reset language to default
452: flang=fdefault_lang;
453:
454: // reset response
455: response.fields().clear();
456:
457: // this is what we'd return in $response:body
458: const String* body_string=0;
459:
460: // maybe we'd be lucky enough as to report an error
461: // in a gracefull way...
462: if(Value* value=main_class.get_element(
463: *new String(UNHANDLED_EXCEPTION_METHOD_NAME),
464: main_class,
465: false)) {
466: if(Junction* junction=value->get_junction()) {
467: if(const Method *method=junction->method) {
1.287 misha 468: // preparing to pass parameters to
469: // @unhandled_exception[exception;stack]
1.293 ! misha 470: VMethodFrameGlobal frame(/*method->name, */ *junction, 0/*no caller*/);
1.287 misha 471: frame.set_self(main_class);
472:
473: // $exception
474: frame.store_param(details.vhash);
475: // $stack[^table::create{name file lineno colno}]
476: Table::columns_type stack_trace_columns(new ArrayString);
477: *stack_trace_columns+=new String("name");
478: *stack_trace_columns+=new String("file");
479: *stack_trace_columns+=new String("lineno");
480: *stack_trace_columns+=new String("colno");
481: Table& stack_trace=*new Table(stack_trace_columns);
482: if(!exception_trace.is_empty()/*signed!*/)
483: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
484: Trace trace=exception_trace.get(i);
485: Table::element_type row(new ArrayString);
486:
487: *row+=trace.name(); // name column
488: Operation::Origin origin=trace.origin();
489: if(origin.file_no) {
490: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
491: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
492: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
493: }
494: stack_trace+=row;
495: }
496:
497: frame.store_param(*new VTable(&stack_trace));
498:
499: // future $response:body=
500: // execute ^unhandled_exception[exception;stack]
501: 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)
502: body_string=&execute_method(frame, *method).as_string();
1.233 paf 503: }
1.30 paf 504: }
1.258 paf 505: }
506:
507: if(!body_string) { // couldn't report an error beautifully?
508: // doing that ugly
509:
510: // future $response:content-type
511: response.fields().put(content_type_name,
512: new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
513: // future $response:body
1.269 paf 514: body_string=new String(exception_cstr);
1.258 paf 515: }
1.41 paf 516:
1.258 paf 517: VString body_vstring(*body_string);
518: VFile* body_file=body_vstring.as_vfile(String::L_UNSPECIFIED, &charsets);
1.90 paf 519:
1.273 paf 520: // conditionally log it
521: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
522: if(!vhandled || !vhandled->as_bool()) {
523: SAPI::log(sapi_info, "%s", exception_cstr);
524: }
525:
1.258 paf 526: // ERROR. write it out
527: output_result(body_file, header_only, false);
1.287 misha 528:
1.273 paf 529: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 530: Request::Exception_details details=get_details(e);
531: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 532: // unconditionally log the beast
533: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 534:
535: throw Exception(0,
536: 0,
537: "in %s",
538: exception_cstr);
1.268 paf 539: }
1.1 paf 540: }
541: }
542:
1.266 paf 543: uint Request::register_file(String::Body file_spec) {
1.248 paf 544: file_list+=file_spec;
545: return file_list.count()-1;
546: }
547:
548: void Request::use_file(VStateless_class& aclass,
549: const String& file_name, const String* main_alias,
550: bool ignore_class_path,
551: bool fail_on_read_problem,
552: bool fail_on_file_absence) {
1.73 paf 553: // cyclic dependence check
1.148 parser 554: if(used_files.get(file_name))
1.248 paf 555: return;
556: used_files.put(file_name, true);
1.73 paf 557:
1.248 paf 558: const String* file_spec;
1.153 parser 559: if(ignore_class_path) // ignore_class_path?
1.148 parser 560: file_spec=&file_name;
1.248 paf 561: else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.153 parser 562: file_spec=&absolute(file_name);
563: else {
564: file_spec=0;
1.248 paf 565: if(Value* element=main_class.get_element(class_path_name, main_class, false)) {
1.233 paf 566: if(element->is_string()) {
1.278 paf 567: file_spec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 568: } else if(Table *table=element->get_table()) {
1.248 paf 569: int size=table->count();
1.233 paf 570: for(int i=size; i--; ) {
1.248 paf 571: const String& path=*(*table->get(i))[0];
1.278 paf 572: if((file_spec=file_exist(absolute(path), file_name)))
1.233 paf 573: break; // found along class_path
574: }
575: } else
1.286 misha 576: throw Exception(PARSER_RUNTIME,
1.233 paf 577: 0,
578: "$" CLASS_PATH_NAME " must be string or table");
579: if(!file_spec)
1.286 misha 580: throw Exception(PARSER_RUNTIME,
1.233 paf 581: &file_name,
582: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
583: }
1.153 parser 584: if(!file_spec)
1.286 misha 585: throw Exception(PARSER_RUNTIME,
1.153 parser 586: &file_name,
1.203 paf 587: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 588: }
1.230 paf 589:
590: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
591: if(!entry_exists(*file_spec))
1.248 paf 592: return;
1.3 paf 593:
1.248 paf 594: if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem))
595: use_buf(aclass, source, main_alias, register_file(*file_spec));
1.16 paf 596: }
597:
1.208 paf 598:
1.248 paf 599: void Request::use_buf(VStateless_class& aclass,
600: const char* source, const String* main_alias,
1.266 paf 601: uint file_no,
602: int line_no_offset) {
1.233 paf 603: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 604: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 605: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 606: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 607:
1.5 paf 608: // compile loaded class
1.266 paf 609: VStateless_class& cclass=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 610:
1.233 paf 611: // locate and execute possible @conf[] static
1.248 paf 612: VString* vfilespec=
613: new VString(*new String(file_list[file_no], String::L_TAINTED));
614: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
615: conf_method_name, vfilespec,
616: false/*no string result needed*/);
617: if(executed.method)
618: configure_admin(cclass/*, executed.method->name*/);
1.208 paf 619:
620: // locate and execute possible @auto[] static
1.233 paf 621: execute_nonvirtual_method(cclass,
1.248 paf 622: auto_method_name, vfilespec,
623: false/*no result needed*/);
1.19 paf 624: }
625:
1.248 paf 626: const String& Request::relative(const char* apath, const String& relative_name) {
627: char *hpath=strdup(apath);
628: String& result=*new String;
629: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 630: result << hpath << "/";
1.248 paf 631: result << relative_name;
632: return result;
1.19 paf 633: }
634:
1.77 paf 635: const String& Request::absolute(const String& relative_name) {
1.217 paf 636: if(relative_name.first_char()=='/') {
1.248 paf 637: String& result=*new String(strdup(request_info.document_root));
1.104 paf 638: result << relative_name;
1.19 paf 639: return result;
640: } else
1.248 paf 641: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 642: #ifdef WIN32
643: || relative_name.pos(":")==1 // DRIVE:
644: || relative_name.starts_with("\\\\") // UNC1
645: || relative_name.starts_with("//") // UNC2
646: #endif
647: )
648: return relative_name;
649: else
1.248 paf 650: return relative(request_info.path_translated, relative_name);
1.1 paf 651: }
1.45 paf 652:
1.267 paf 653: #ifndef DOXYGEN
654: class Add_header_attribute_info
655: {
656: public:
657: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
658: Request& r;
659: bool add_last_modified;
660: };
661: #endif
1.248 paf 662: static void add_header_attribute(
1.290 misha 663: HashStringValue::key_type name,
664: HashStringValue::value_type value,
1.267 paf 665: Add_header_attribute_info* info) {
1.290 misha 666: if(name==BODY_NAME
667: || name==DOWNLOAD_NAME
668: || name==CHARSET_NAME)
1.101 paf 669: return;
1.290 misha 670:
671: const char* aname=String(name, String::L_URI).cstr(String::L_UNSPECIFIED, 0, &info->r.charsets);
1.101 paf 672:
1.267 paf 673: SAPI::add_header_attribute(info->r.sapi_info,
1.290 misha 674: aname,
1.292 misha 675: attributed_meaning_to_string(*value, String::L_URI, false).cstr(String::L_UNSPECIFIED, 0, &info->r.charsets));
1.267 paf 676:
1.290 misha 677: if(strcasecmp(aname, "last-modified")==0)
1.267 paf 678: info->add_last_modified = false;
679: }
680:
681: static void output_sole_piece(Request& r,
682: bool header_only,
683: VFile& body_file,
684: Value* body_file_content_type) {
685: // transcode text body when "text/*" or simple result
686: String::C output(body_file.value_ptr(), body_file.value_size());
687: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
688: output=Charset::transcode(output,
689: r.charsets.source(),
690: r.charsets.client());
691:
692: // prepare header: content-length
693: char content_length_cstr[MAX_NUMBER];
694: snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length);
695: SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr);
696:
697: // send header
698: SAPI::send_header(r.sapi_info);
699:
700: // send body
701: if(!header_only)
702: SAPI::send_body(r.sapi_info, output.str, output.length);
703: }
704:
705: #ifndef DOXYGEN
706: struct Range
707: {
708: size_t start;
709: size_t end;
710: };
711: #endif
712: static void parse_range(const String* s, Array<Range> &ar)
713: {
714: const char *p = s->cstr();
715: if(s->starts_with("bytes="))
716: p += 6;
717: Range r;
718: while(*p){
719: r.start = (size_t)-1;
720: r.end = (size_t)-1;
721: if(*p >= '0' && *p <= '9'){
722: r.start = atol(p);
723: while(*p>='0' && *p<='9') ++p;
724: }
725: if(*p++ != '-') break;
726: if(*p >= '0' && *p <= '9'){
727: r.end = atol(p);
728: while(*p>='0' && *p<='9') ++p;
729: }
730: if(*p == ',') ++p;
731: ar += r;
732: }
1.101 paf 733: }
1.267 paf 734:
735: static void output_pieces(Request& r,
736: bool header_only,
737: const String& filename,
738: size_t content_length,
739: Value& date,
740: bool add_last_modified)
741: {
1.270 paf 742: SAPI::add_header_attribute(r.sapi_info, "Accept-Ranges", "bytes");
743:
1.267 paf 744: const size_t BUFSIZE = 10*0x400;
745: char buf[BUFSIZE];
746: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
747: size_t offset=0;
748: size_t part_length=content_length;
749: if(range){
750: Array<Range> ar;
751: parse_range(new String(range), ar);
752: size_t count = ar.count();
753: if(count == 1){
754: Range &rg = ar.get_ref(0);
755: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
756: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
757: return;
758: }
759: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
760: rg.start = content_length - rg.end;
761: rg.end = content_length;
762: offset += rg.start;
763: part_length = rg.end-rg.start;
764: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
765: rg.end = content_length-1;
766: offset += rg.start;
767: part_length -= rg.start;
768: }
769: if(part_length == 0){
770: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
771: return;
772: }
773: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
774: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
775: SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf);
776: }else if(count != 0){
777: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
778: return;
779: }
780: }
781:
782:
783: snprintf(buf, BUFSIZE, "%u", part_length);
784: SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf);
785:
786: if(add_last_modified){
787: const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true);
788: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
789: }
790: SAPI::send_header(r.sapi_info);
791:
792: const String& filespec=r.absolute(filename);
793:
794: size_t sent = 0;
795: if(!header_only){
796: size_t to_read = 0;
797: size_t size = 0;
798: do{
799: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
800: File_read_result read_result=file_read(r.charsets, filespec,
801: false /*as text*/, 0/*params*/, true/*fail on problem*/,
802: buf, offset, to_read);
803: to_read=read_result.length;
804: if(to_read == 0)
805: break;
806: offset += to_read;
807:
808: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
809: sent += size;
810: if(size != to_read)
811: break;
812: part_length -= to_read;
813: }while(part_length);
814: }
815: }
816:
1.248 paf 817: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 818: // header: cookies
1.248 paf 819: cookie.output_result(sapi_info);
1.51 paf 820:
1.267 paf 821: // may be specified
822: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 823:
824: // content-disposition
1.267 paf 825: Value* vfile_name=body_file->fields().get(name_name);
826: if(!vfile_name) {
827: vfile_name=body_file->fields().get(response_body_file_name);
1.274 paf 828: if(vfile_name)
829: {
830: const String& sfile_name=vfile_name->as_string();
1.267 paf 831:
1.274 paf 832: char* name_cstr=sfile_name.cstrm();
833: if(char *after_slash=rsplit(name_cstr, '\\'))
834: name_cstr=after_slash;
835: if(char *after_slash=rsplit(name_cstr, '/'))
836: name_cstr=after_slash;
837: vfile_name=new VString(*new String(name_cstr));
838: }
1.267 paf 839: }
840: if(vfile_name) {
841: const String& sfile_name=vfile_name->as_string();
842: if(sfile_name!=NONAME_DAT) {
1.283 misha 843: VHash& hash=*new VHash();
844: HashStringValue &h=hash.hash();
1.288 misha 845: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.283 misha 846:
847: h.put(content_disposition_filename_name, vfile_name);
848: response.fields().put(content_disposition_name, &hash);
1.267 paf 849:
850: if(!body_file_content_type)
851: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 852: }
1.267 paf 853: }
854:
855: // set content-type
856: if(body_file_content_type) {
857: // body file content type
858: response.fields().put(content_type_name, body_file_content_type);
859: } else {
860: // default content type
861: response.fields().put_dont_replace(content_type_name,
862: new VString(*new String(DEFAULT_CONTENT_TYPE)));
863: }
1.49 paf 864:
1.62 paf 865: // prepare header: $response:fields without :body
1.267 paf 866: Add_header_attribute_info info(*this);
1.281 paf 867: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 868:
1.223 paf 869: if(body_file_content_type)
1.248 paf 870: if(HashStringValue *hash=body_file_content_type->get_hash())
871: body_file_content_type=hash->get(value_name);
1.50 paf 872:
1.267 paf 873: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
874: const String& sresponse_body_file=vresponse_body_file->as_string();
875: size_t content_length=0;
876: time_t atime=0, mtime=0, ctime=0;
877: file_stat(absolute(sresponse_body_file),
878: content_length,
879: atime, mtime, ctime);
880:
881: VDate* vdate=0;
882: if(Value* v=body_file->fields().get("mdate")) {
883: if(Value* vdatep=v->as(VDATE_TYPE, false))
884: vdate=static_cast<VDate*>(vdatep);
885: else
1.286 misha 886: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 887: }
888: if(!vdate)
889: vdate=new VDate(mtime);
1.62 paf 890:
1.267 paf 891: output_pieces(*this, header_only,
892: sresponse_body_file,
893: content_length,
894: *vdate,
895: info.add_last_modified);
896: } else {
897: output_sole_piece(*this, header_only,
898: *body_file, body_file_content_type);
899: }
1.50 paf 900: }
1.104 paf 901:
1.248 paf 902: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 903: if(mime_types)
1.248 paf 904: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
905: String sext(++cext);
1.246 paf 906: Table::Action_options options;
1.248 paf 907: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
908: if(const String* result=mime_types->item(1))
909: return *result;
1.104 paf 910: else
1.286 misha 911: throw Exception(PARSER_RUNTIME,
1.248 paf 912: 0,
1.212 paf 913: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 914: }
1.248 paf 915:
916: return *new String("application/octet-stream");
917: }
918:
919: #ifdef XML
1.280 paf 920: xmlChar* Request::transcode(const String& s) {
1.248 paf 921: return charsets.source().transcode(s);
922: }
923:
1.280 paf 924: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 925: return charsets.source().transcode(s);
926: }
927:
1.280 paf 928: const String& Request::transcode(const xmlChar* s) {
1.248 paf 929: return charsets.source().transcode(s);
1.233 paf 930: }
1.248 paf 931: #endif
932:
933:
934: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
935: Trace result;
936: if(!is_empty()) {
937: result=bottom_value();
938: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 939: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 940: fbottom++;
941: } else if(result.name()==problem_source) // it is that same guy?
942: fbottom++; // throw away that trace
1.279 paf 943: else {
944: // stack top contains not us,
945: // leaving result intact
946: // it would help ^throw
947: }
1.248 paf 948: }
949:
950: return result;
951: }
952:
953: Request::Exception_details Request::get_details(const Exception& e) {
954: const String* problem_source=e.problem_source();
955: Trace trace=exception_trace.extract_origin(problem_source);
956:
957: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
958:
959: // $.type
960: if(const char* type=e.type(true))
961: hash.put(exception_type_part_name, new VString(*new String(type)));
962:
963: // $.source
964: if(problem_source) {
965: String& source=*new String;
966: source.append(*problem_source, String::L_TAINTED, true/*forced*/);
967:
968: hash.put(exception_source_part_name, new VString(source));
969: }
970:
971: // $.file lineno colno
972: if(trace) {
973: const Operation::Origin origin=trace.origin();
1.263 paf 974: hash.put(String::Body("file"),
1.248 paf 975: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 976: hash.put(String::Body("lineno"), new VInt(1+origin.line));
977: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 978: }
979:
980: // $.comment
981: if(const char* comment=e.comment(true))
982: hash.put(exception_comment_part_name,
983: new VString(*new String(comment, 0, true/*tainted*/)));
984:
985: // $.handled(0)
986: hash.put(exception_handled_part_name, new VBool(false));
1.233 paf 987:
1.248 paf 988: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 989: }
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