Annotation of parser3/src/main/pa_request.C, revision 1.269
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.265 paf 4: Copyright (c) 2001-2004 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:
1.269 ! paf 8: static const char * const IDENT_REQUEST_C="$Date: 2004/07/30 10:02:31 $";
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"
1.112 paf 17: #include "pa_vmethod_frame.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"
1.267 paf 56: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 57:
58: // globals
59:
60: const String main_method_name(MAIN_METHOD_NAME);
61: const String auto_method_name(AUTO_METHOD_NAME);
62: const String content_disposition_name(CONTENT_DISPOSITION_NAME);
63: const String content_disposition_value(CONTENT_DISPOSITION_VALUE);
64: const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME);
65: const String body_name(BODY_NAME);
66: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
67: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
68: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
69: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
1.267 paf 70: const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 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"
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);
87: static const String origins_mode_name(ORIGINS_MODE_NAME);
88: static const String conf_method_name(CONF_METHOD_NAME);
89: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
90: static const String download_name(DOWNLOAD_NAME);
91: static const String class_path_name(CLASS_PATH_NAME);
92:
93: // defines
1.82 paf 94:
1.233 paf 95: // op.C
1.248 paf 96: VStateless_class& VClassMAIN_create();
1.123 paf 97:
1.157 parser 98: //
1.248 paf 99: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.252 paf 100: String::Language adefault_lang, bool status_allowed):
1.248 paf 101: // private
102: anti_endless_execute_recoursion(0),
103:
104: // public
105: method_frame(0),
106: rcontext(0),
107: wcontext(0),
108: flang(adefault_lang),
1.191 paf 109: fconnection(0),
1.248 paf 110: finterrupted(false),
111:
112: // public
1.183 paf 113: #ifdef RESOURCES_DEBUG
1.248 paf 114: sql_connect_time(0),
115: sql_request_time(0),
116: #endif
117:
118: // public
1.257 paf 119: request_info(arequest_info),
1.248 paf 120: sapi_info(asapi_info),
121: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
122:
123: main_class(VClassMAIN_create()),
1.260 paf 124: form(*new VForm(charsets, arequest_info)),
1.248 paf 125: mail(*new VMail),
126: response(*new VResponse(arequest_info, charsets)),
127: cookie(*new VCookie),
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
1.179 paf 157: if(status_allowed)
1.249 paf 158: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 159: // request class
1.249 paf 160: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets));
1.157 parser 161: // cookie class
1.249 paf 162: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 163: // console class
164: classes().put(String::Body(CONSOLE_CLASS_NAME), new VConsole());
1.157 parser 165:
166: /// methoded
167: // response class
1.248 paf 168: classes().put(response.get_class()->name(), &response);
1.157 parser 169:
170: /// bases used
171: // form class
1.248 paf 172: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 173: // mail class
1.248 paf 174: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 175: // math class
1.248 paf 176: {
177: Value& math=*new VMath;
178: classes().put(math.get_class()->base_class()->name(), &math);
179: }
180: // memory class
181: {
182: Value& memory=*new VMemory;
183: classes().put(memory.get_class()->base_class()->name(), &memory);
184: }
1.117 paf 185: }
1.192 paf 186:
187: Request::~Request() {
188: #ifdef XML
189: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 190: if(const char* xml_generic_errors=xmlGenericErrors()) {
191: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 192: free((void *)xml_generic_errors);
193: }
194: #endif
195: }
1.236 paf 196:
1.248 paf 197: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 198:
1.248 paf 199: static void load_charset(HashStringValue::key_type akey,
200: HashStringValue::value_type avalue,
201: Request_charsets* charsets) {
1.249 paf 202: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 203: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 204: }
1.248 paf 205: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 206: if(configure_admin_done)
207: throw Exception("parser.runtime",
1.248 paf 208: 0,
1.208 paf 209: "parser already configured");
210: configure_admin_done=true;
211:
1.227 paf 212: // charsets must only be specified in method_frame config
1.208 paf 213: // so that users would not interfere
214:
215: /* $MAIN:CHARSETS[
216: $.charsetname1[/full/path/to/charset/file.cfg]
217: ...
218: ]
219: */
1.248 paf 220: if(Value* vcharsets=conf_class.get_element(charsets_name, conf_class, false)) {
1.240 paf 221: if(!vcharsets->is_string())
1.248 paf 222: if(HashStringValue* charsets=vcharsets->get_hash())
223: charsets->for_each(load_charset, &this->charsets);
1.240 paf 224: else
225: throw Exception("parser.runtime",
226: 0,
227: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 228: }
229:
1.227 paf 230: // configure method_frame options
1.208 paf 231: // until someone with less privileges have overriden them
1.248 paf 232: methoded_array().configure_admin(*this);
1.208 paf 233: }
1.150 parser 234:
1.269 ! paf 235: const char* Request::get_exception_cstr(
! 236: const Exception& e,
! 237: Request::Exception_details& details) {
! 238: #define PA_URI_FORMAT "%s: "
! 239: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
! 240: #define PA_SOURCE_FORMAT "'%s' "
! 241: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
! 242: char* result=new(PointerFreeGC) char[MAX_STRING];
! 243:
! 244: if(details.problem_source) { // do we know the guy?
! 245: if(details.trace) { // do whe know where he came from?
! 246: Operation::Origin origin=details.trace.origin();
! 247: snprintf(result, MAX_STRING,
! 248: PA_URI_FORMAT
! 249: PA_ORIGIN_FILE_POS_FORMAT
! 250: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
! 251: request_info.uri,
! 252: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
! 253: details.problem_source->cstr(),
! 254: e.comment(), e.type()
! 255: );
! 256: } else
! 257: snprintf(result, MAX_STRING,
! 258: PA_URI_FORMAT
! 259: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
! 260: request_info.uri,
! 261: details.problem_source->cstr(),
! 262: e.comment(), e.type()
! 263: );
! 264: } else
! 265: snprintf(result, MAX_STRING,
! 266: PA_URI_FORMAT
! 267: PA_COMMENT_TYPE_FORMAT,
! 268: request_info.uri,
! 269: e.comment(), e.type()
! 270: );
! 271:
! 272: return result;
! 273: }
1.64 paf 274: /**
275: load MAIN class, execute @main.
276: MAIN class consists of all the auto.p files we'd manage to find
277: plus
278: the file user requested us to process
279: all located classes become children of one another,
280: composing class we name 'MAIN'
1.180 paf 281:
282: @test log stack trace
283:
1.64 paf 284: */
1.248 paf 285: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.183 paf 286: #ifdef RESOURCES_DEBUG
287: //measures
288: struct timeval mt[10];
289: //measure:before all
290: gettimeofday(&mt[0],NULL);
291: #endif
1.169 parser 292: try {
1.211 paf 293: // loading config
294: if(config_filespec) {
1.248 paf 295: const String& filespec=*new String(config_filespec);
1.233 paf 296: use_file(main_class,
1.248 paf 297: filespec, 0 /*main_alias*/,
298: true /*ignore class_path*/,
299: config_fail_on_read_problem,
300: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 301: }
1.8 paf 302:
1.72 paf 303: // loading auto.p files from document_root/..
304: // to the one beside requested file.
305: // all assigned bases from upper dir
306: {
1.248 paf 307: const char* after=request_info.path_translated;
308: size_t drlen=strlen(request_info.document_root);
309: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 310: after+=drlen;
311: if(after[-1]=='/')
312: --after;
313: }
314:
1.248 paf 315: while(const char* before=strchr(after, '/')) {
316: String& sfile_spec=*new String;
317: if(after!=request_info.path_translated) {
318: sfile_spec.append_strdup(
319: request_info.path_translated, before-request_info.path_translated,
320: String::L_CLEAN);
1.152 parser 321: sfile_spec << "/" AUTO_FILE_NAME;
322:
1.233 paf 323: use_file(main_class,
1.248 paf 324: sfile_spec,
325: 0 /*main_alias*/,
326: true /*ignore class_path*/,
327: true /*fail on read problem*/,
328: false /*but ignore absence, sole user*/);
1.115 paf 329: }
330: after=before+1;
1.72 paf 331: }
332: }
1.34 paf 333:
1.125 paf 334: // compile requested file
1.248 paf 335: String& spath_translated=*new String;
336: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.233 paf 337: use_file(main_class,
1.248 paf 338: spath_translated,
339: 0 /*main_alias*/,
340: true /*ignore class_path*/);
1.214 paf 341:
1.227 paf 342: // configure method_frame options if not configured yet
1.214 paf 343: if(!configure_admin_done)
1.248 paf 344: configure_admin(main_class);
1.7 paf 345:
1.227 paf 346: // configure not-method_frame=user options
1.248 paf 347: methoded_array().configure_user(*this);
1.124 paf 348:
1.85 paf 349: // $MAIN:MIME-TYPES
1.248 paf 350: if(Value* element=main_class.get_element(mime_types_name, main_class, false))
1.85 paf 351: if(Table *table=element->get_table())
352: mime_types=table;
1.102 paf 353:
1.124 paf 354: // filling cookies
1.248 paf 355: cookie.fill_fields(request_info);
1.213 paf 356:
357: // filling mail received
358: mail.fill_received(*this);
1.25 paf 359:
1.183 paf 360: #ifdef RESOURCES_DEBUG
361: //measure:after compile
362: gettimeofday(&mt[1],NULL);
363: #endif
1.25 paf 364: // execute @main[]
1.248 paf 365: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 366: if(!body_string)
1.197 paf 367: throw Exception("parser.runtime",
1.248 paf 368: 0,
1.145 parser 369: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 370:
1.183 paf 371: #ifdef RESOURCES_DEBUG
372: //measure:after main
373: gettimeofday(&mt[2],NULL);
374: #endif
375:
1.250 paf 376: // extract response body
377: Value* body_value=response.fields().get(download_name); // $response:download?
378: bool as_attachment=body_value!=0;
379: if(!body_value)
380: body_value=response.fields().get(body_name); // $response:body
381: if(!body_value)
382: body_value=new VString(*body_string); // just result of ^main[]
383:
1.119 paf 384: // @postprocess
1.248 paf 385: if(Value* value=main_class.get_element(post_process_method_name, main_class, false))
386: if(Junction* junction=value->get_junction())
1.91 paf 387: if(const Method *method=junction->method) {
388: // preparing to pass parameters to
1.119 paf 389: // @postprocess[data]
1.248 paf 390: VMethodFrame frame(/*method->name, */ *junction, 0/*no parent*/);
1.233 paf 391: frame.set_self(main_class);
1.91 paf 392:
1.250 paf 393: frame.store_param(*body_value);
394: body_value=&execute_method(frame, *method).as_value();
1.91 paf 395: }
1.90 paf 396:
1.250 paf 397: VFile* body_file=body_value->as_vfile(
1.248 paf 398: String::L_UNSPECIFIED, &charsets);
1.41 paf 399:
1.183 paf 400: #ifdef RESOURCES_DEBUG
401: //measure:after postprocess
402: gettimeofday(&mt[3],NULL);
403: #endif
404:
1.45 paf 405: // OK. write out the result
1.248 paf 406: output_result(body_file, header_only, as_attachment);
1.183 paf 407:
408: #ifdef RESOURCES_DEBUG
409: //measure:after output_result
410: gettimeofday(&mt[9],NULL);
411: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
412:
413: double t[10];
414: for(int i=0;i<10;i++)
415: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
416: //measure:log2 compile,main,postprocess,output
1.248 paf 417: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
418: request_info.uri,
1.183 paf 419: t[1]-t[0],
420: t[2]-t[1],
421: t[3]-t[2],
422: sql_connect_time,sql_request_time,
423: t[9]-t[3]
424: );
425: #endif
1.171 parser 426: } catch(const Exception& e) { // request handling problem
1.268 paf 427: try {
1.76 paf 428: // we're returning not result, but error explanation
1.269 ! paf 429:
! 430: Request::Exception_details details=get_details(e);
! 431: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 432: // log the beast
1.269 ! paf 433: SAPI::log(sapi_info, "%s", exception_cstr);
1.258 paf 434:
435: // reset language to default
436: flang=fdefault_lang;
437:
438: // reset response
439: response.fields().clear();
440:
441: // this is what we'd return in $response:body
442: const String* body_string=0;
443:
444: // maybe we'd be lucky enough as to report an error
445: // in a gracefull way...
446: if(Value* value=main_class.get_element(
447: *new String(UNHANDLED_EXCEPTION_METHOD_NAME),
448: main_class,
449: false)) {
450: if(Junction* junction=value->get_junction()) {
451: if(const Method *method=junction->method) {
1.248 paf 452: // preparing to pass parameters to
453: // @unhandled_exception[exception;stack]
454: VMethodFrame frame(/*method->name, */ *junction, 0/*no caller*/);
455: frame.set_self(main_class);
456:
457: // $exception
458: frame.store_param(details.vhash);
459: // $stack[^table::set{name origin}]
460: Table::columns_type stack_trace_columns(new ArrayString);
461: *stack_trace_columns+=new String("name");
462: *stack_trace_columns+=new String("file");
463: *stack_trace_columns+=new String("lineno");
464: *stack_trace_columns+=new String("colno");
465: Table& stack_trace=*new Table(stack_trace_columns);
466: if(!exception_trace.is_empty()/*signed!*/)
1.258 paf 467: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
468: Trace trace=exception_trace.get(i);
469: Table::element_type row(new ArrayString);
470:
471: *row+=trace.name(); // name column
472: Operation::Origin origin=trace.origin();
473: if(origin.file_no) {
474: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
475: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
476: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
1.248 paf 477: }
1.258 paf 478: stack_trace+=row;
479: }
1.248 paf 480: frame.store_param(*new VTable(&stack_trace));
481:
482: // future $response:body=
483: // execute ^unhandled_exception[exception;stack]
1.250 paf 484: body_string=&execute_method(frame, *method).as_string();
1.233 paf 485: }
1.30 paf 486: }
1.258 paf 487: }
488:
489: if(!body_string) { // couldn't report an error beautifully?
490: // doing that ugly
491:
492: // future $response:content-type
493: response.fields().put(content_type_name,
494: new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
495: // future $response:body
1.269 ! paf 496: body_string=new String(exception_cstr);
1.258 paf 497: }
1.41 paf 498:
1.258 paf 499: VString body_vstring(*body_string);
500: VFile* body_file=body_vstring.as_vfile(String::L_UNSPECIFIED, &charsets);
1.90 paf 501:
1.258 paf 502: // ERROR. write it out
503: output_result(body_file, header_only, false);
1.268 paf 504: } catch(const Exception& e) {
1.269 ! paf 505: Request::Exception_details details=get_details(e);
! 506: const char* exception_cstr=get_exception_cstr(e, details);
! 507:
! 508: throw Exception(0,
! 509: 0,
! 510: "in %s",
! 511: exception_cstr);
1.268 paf 512: }
1.1 paf 513: }
514: }
515:
1.266 paf 516: uint Request::register_file(String::Body file_spec) {
1.248 paf 517: file_list+=file_spec;
518: return file_list.count()-1;
519: }
520:
521: void Request::use_file(VStateless_class& aclass,
522: const String& file_name, const String* main_alias,
523: bool ignore_class_path,
524: bool fail_on_read_problem,
525: bool fail_on_file_absence) {
1.73 paf 526: // cyclic dependence check
1.148 parser 527: if(used_files.get(file_name))
1.248 paf 528: return;
529: used_files.put(file_name, true);
1.73 paf 530:
1.248 paf 531: const String* file_spec;
1.153 parser 532: if(ignore_class_path) // ignore_class_path?
1.148 parser 533: file_spec=&file_name;
1.248 paf 534: else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.153 parser 535: file_spec=&absolute(file_name);
536: else {
537: file_spec=0;
1.248 paf 538: if(Value* element=main_class.get_element(class_path_name, main_class, false)) {
1.233 paf 539: if(element->is_string()) {
540: file_spec=file_readable(absolute(element->as_string()), file_name); // found at class_path?
541: } else if(Table *table=element->get_table()) {
1.248 paf 542: int size=table->count();
1.233 paf 543: for(int i=size; i--; ) {
1.248 paf 544: const String& path=*(*table->get(i))[0];
1.259 paf 545: if((file_spec=file_readable(absolute(path), file_name)))
1.233 paf 546: break; // found along class_path
547: }
548: } else
549: throw Exception("parser.runtime",
550: 0,
551: "$" CLASS_PATH_NAME " must be string or table");
552: if(!file_spec)
553: throw Exception("parser.runtime",
554: &file_name,
555: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
556: }
1.153 parser 557: if(!file_spec)
1.197 paf 558: throw Exception("parser.runtime",
1.153 parser 559: &file_name,
1.203 paf 560: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 561: }
1.230 paf 562:
563: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
564: if(!entry_exists(*file_spec))
1.248 paf 565: return;
1.3 paf 566:
1.248 paf 567: if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem))
568: use_buf(aclass, source, main_alias, register_file(*file_spec));
1.16 paf 569: }
570:
1.208 paf 571:
1.248 paf 572: void Request::use_buf(VStateless_class& aclass,
573: const char* source, const String* main_alias,
1.266 paf 574: uint file_no,
575: int line_no_offset) {
1.233 paf 576: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 577: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 578: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 579: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 580:
1.5 paf 581: // compile loaded class
1.266 paf 582: VStateless_class& cclass=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 583:
1.233 paf 584: // locate and execute possible @conf[] static
1.248 paf 585: VString* vfilespec=
586: new VString(*new String(file_list[file_no], String::L_TAINTED));
587: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
588: conf_method_name, vfilespec,
589: false/*no string result needed*/);
590: if(executed.method)
591: configure_admin(cclass/*, executed.method->name*/);
1.208 paf 592:
593: // locate and execute possible @auto[] static
1.233 paf 594: execute_nonvirtual_method(cclass,
1.248 paf 595: auto_method_name, vfilespec,
596: false/*no result needed*/);
1.19 paf 597: }
598:
1.248 paf 599: const String& Request::relative(const char* apath, const String& relative_name) {
600: char *hpath=strdup(apath);
601: String& result=*new String;
602: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 603: result << hpath << "/";
1.248 paf 604: result << relative_name;
605: return result;
1.19 paf 606: }
607:
1.77 paf 608: const String& Request::absolute(const String& relative_name) {
1.217 paf 609: if(relative_name.first_char()=='/') {
1.248 paf 610: String& result=*new String(strdup(request_info.document_root));
1.104 paf 611: result << relative_name;
1.19 paf 612: return result;
613: } else
1.248 paf 614: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 615: #ifdef WIN32
616: || relative_name.pos(":")==1 // DRIVE:
617: || relative_name.starts_with("\\\\") // UNC1
618: || relative_name.starts_with("//") // UNC2
619: #endif
620: )
621: return relative_name;
622: else
1.248 paf 623: return relative(request_info.path_translated, relative_name);
1.1 paf 624: }
1.45 paf 625:
1.267 paf 626: #ifndef DOXYGEN
627: class Add_header_attribute_info
628: {
629: public:
630: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
631: Request& r;
632: bool add_last_modified;
633: };
634: #endif
1.248 paf 635: static void add_header_attribute(
636: HashStringValue::key_type aattribute,
637: HashStringValue::value_type ameaning,
1.267 paf 638: Add_header_attribute_info* info) {
1.184 paf 639: if(aattribute==BODY_NAME
1.244 paf 640: || aattribute==DOWNLOAD_NAME
1.184 paf 641: || aattribute==CHARSET_NAME)
1.101 paf 642: return;
643:
1.267 paf 644: const char* a=aattribute.cstr();
645: SAPI::add_header_attribute(info->r.sapi_info,
646: a,
1.248 paf 647: attributed_meaning_to_string(*ameaning, String::L_HTTP_HEADER, false).
648: cstr(String::L_UNSPECIFIED));
1.267 paf 649:
650: if(strcasecmp(a, "last-modified")==0)
651: info->add_last_modified = false;
652: }
653:
654: /*
655: if(v = opts->get("mdate")){
656: ++valid_options;
657: if(Value* vdate=v->as(VDATE_TYPE, false))
658: date=static_cast<VDate*>(vdate);
659: else throw Exception("parser.runtime", 0, "mdate must be a date");
660: }
661: if(v = opts->get("disposition")){
662: ++valid_options;
663: if(!v->is("string")) throw Exception("parser.runtime", 0, "disposition must be a string");
664: disposition = v->get_string()->cstr();
665: if(strcmp(disposition, "inline") && strcmp(disposition, "attachment")) throw Exception("parser.runtime", 0, "disposition can be only 'inline' or 'attachment'");
666: }
667: if(valid_options != opts->count())
668: throw Exception("parser.runtime", 0, "invalid option passed");
669: }
670:
671: auto_file f = fopen(c_from_file_name, "rb");
672: if(f == 0)
673: throw Exception("parser.runtime", 0, "Can't open file");
674:
675: if(fseek(f, 0, SEEK_END)!=0)
676: throw Exception("parser.runtime", 0, "Can't seek file");
677:
678: size_t file_length = (size_t)ftell(f);
679: if(file_length == (size_t)-1)
680: throw Exception("parser.runtime", 0, "can't get file size");
681: if(file_length <= offset)
682: throw Exception("parser.runtime", 0, "offset too big");
683:
684: size_t content_length = file_length-offset;
685: if(limit != (size_t)-1)
686: content_length = limit<content_length?limit:content_length;
687:
688: size_t part_length = content_length;
689:
690: const size_t BUFSIZE = 4096;
691: unsigned char buf[BUFSIZE];
692: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
693: if(range){
694: Array<Range> ar;
695: parse_range(new String(range), ar);
696: size_t count = ar.count();
697: if(count == 1){
698: Range &rg = ar.get_ref(0);
699: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
700: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
701: return;
702: }
703: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
704: rg.start = content_length - rg.end;
705: rg.end = content_length;
706: offset += rg.start;
707: part_length = rg.end-rg.start;
708: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
709: rg.end = content_length-1;
710: offset += rg.start;
711: part_length -= rg.start;
712: }
713: if(part_length == 0){
714: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
715: return;
716: }
717: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
718: snprintf((char*)buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
719: SAPI::add_header_attribute(r.sapi_info, "Content-Range", (char*)buf);
720: }else if(count != 0){
721: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
722: return;
723: }
724: }
725:
726: fseek(f, offset, SEEK_SET);
727: snprintf((char*)buf, BUFSIZE, "%u", part_length);
728: SAPI::add_header_attribute(r.sapi_info, "Content-Length", (char*)buf);
729:
730: if(info.add_content_disposition && disposition){
731: const char *fname = 0;
732: if(to_file_name){
733: fname = to_file_name->as_string().cstr();
734: }else{
735: const char *fname = c_from_file_name;
736: const char *p1 = strrchr(fname, '/');
737: const char *p2 = strrchr(fname, '\\');
738: if(p1 || p2)
739: fname = max(p1, p2)+1;
740: }
741:
742: snprintf((char*)buf, BUFSIZE, "%s; filename=\"%s\"", disposition, fname);
743: SAPI::add_header_attribute(r.sapi_info, "Content-Disposition", (char*)buf);
744: }
745: if(info.add_content_type)
746: SAPI::add_header_attribute(r.sapi_info, "Content-Type", r.mime_type_of(c_from_file_name).cstr());
747: if(info.add_last_modified){
748: if(date == 0){
749: struct stat st;
750: if(stat(c_from_file_name, &st)!=0) throw Exception("parser.runtime", 0, "can't get file stat");
751: date = new VDate(st.st_mtime);
752: }
753: const String &s = attributed_meaning_to_string(*date, String::L_AS_IS, true);
754: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
755: }
756: r.cookie.output_result(r.sapi_info);
757: SAPI::send_header(r.sapi_info);
758:
759: const char* request_method=getenv("REQUEST_METHOD");
760: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
761: size_t sent = 0;
762: if(!header_only){
763: size_t to_read = 0;
764: size_t size = 0;
765: do{
766: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
767: to_read = fread(buf, 1, to_read, f);
768: if(to_read == 0)
769: break;
770: size = SAPI::send_body(r.sapi_info, buf, to_read);
771: sent += size;
772: if(size != to_read)
773: break;
774: part_length -= to_read;
775: }while(part_length);
776: }
777: // set flag to bypass other outputs
778: r.response.fields().put("ignore", new VString(*new String("y")));
779: r.write_no_lang(*new VInt(sent));
780: }
781:
782:
783: */
784:
785:
786:
787: static void output_sole_piece(Request& r,
788: bool header_only,
789: VFile& body_file,
790: Value* body_file_content_type) {
791: // transcode text body when "text/*" or simple result
792: String::C output(body_file.value_ptr(), body_file.value_size());
793: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
794: output=Charset::transcode(output,
795: r.charsets.source(),
796: r.charsets.client());
797:
798: // prepare header: content-length
799: char content_length_cstr[MAX_NUMBER];
800: snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length);
801: SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr);
802:
803: // send header
804: SAPI::send_header(r.sapi_info);
805:
806: // send body
807: if(!header_only)
808: SAPI::send_body(r.sapi_info, output.str, output.length);
809: }
810:
811: #ifndef DOXYGEN
812: struct Range
813: {
814: size_t start;
815: size_t end;
816: };
817: #endif
818: static void parse_range(const String* s, Array<Range> &ar)
819: {
820: const char *p = s->cstr();
821: if(s->starts_with("bytes="))
822: p += 6;
823: Range r;
824: while(*p){
825: r.start = (size_t)-1;
826: r.end = (size_t)-1;
827: if(*p >= '0' && *p <= '9'){
828: r.start = atol(p);
829: while(*p>='0' && *p<='9') ++p;
830: }
831: if(*p++ != '-') break;
832: if(*p >= '0' && *p <= '9'){
833: r.end = atol(p);
834: while(*p>='0' && *p<='9') ++p;
835: }
836: if(*p == ',') ++p;
837: ar += r;
838: }
1.101 paf 839: }
1.267 paf 840:
841: static void output_pieces(Request& r,
842: bool header_only,
843: const String& filename,
844: size_t content_length,
845: Value& date,
846: bool add_last_modified)
847: {
848: const size_t BUFSIZE = 10*0x400;
849: char buf[BUFSIZE];
850: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
851: size_t offset=0;
852: size_t part_length=content_length;
853: if(range){
854: Array<Range> ar;
855: parse_range(new String(range), ar);
856: size_t count = ar.count();
857: if(count == 1){
858: Range &rg = ar.get_ref(0);
859: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
860: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
861: return;
862: }
863: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
864: rg.start = content_length - rg.end;
865: rg.end = content_length;
866: offset += rg.start;
867: part_length = rg.end-rg.start;
868: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
869: rg.end = content_length-1;
870: offset += rg.start;
871: part_length -= rg.start;
872: }
873: if(part_length == 0){
874: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
875: return;
876: }
877: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
878: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
879: SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf);
880: }else if(count != 0){
881: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
882: return;
883: }
884: }
885:
886:
887: snprintf(buf, BUFSIZE, "%u", part_length);
888: SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf);
889:
890: if(add_last_modified){
891: const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true);
892: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
893: }
894: SAPI::send_header(r.sapi_info);
895:
896: const String& filespec=r.absolute(filename);
897:
898: size_t sent = 0;
899: if(!header_only){
900: size_t to_read = 0;
901: size_t size = 0;
902: do{
903: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
904: File_read_result read_result=file_read(r.charsets, filespec,
905: false /*as text*/, 0/*params*/, true/*fail on problem*/,
906: buf, offset, to_read);
907: to_read=read_result.length;
908: if(to_read == 0)
909: break;
910: offset += to_read;
911:
912: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
913: sent += size;
914: if(size != to_read)
915: break;
916: part_length -= to_read;
917: }while(part_length);
918: }
919: }
920:
1.248 paf 921: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 922: // header: cookies
1.248 paf 923: cookie.output_result(sapi_info);
1.51 paf 924:
1.267 paf 925: // may be specified
926: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 927:
928: // content-disposition
1.267 paf 929: Value* vfile_name=body_file->fields().get(name_name);
930: if(!vfile_name) {
931: vfile_name=body_file->fields().get(response_body_file_name);
932: const String& sfile_name=vfile_name->as_string();
933:
934: char* name_cstr=sfile_name.cstrm();
935: if(char *after_slash=rsplit(name_cstr, '\\'))
936: name_cstr=after_slash;
937: if(char *after_slash=rsplit(name_cstr, '/'))
938: name_cstr=after_slash;
939: vfile_name=new VString(*new String(name_cstr));
940: }
941: if(vfile_name) {
942: const String& sfile_name=vfile_name->as_string();
943: if(sfile_name!=NONAME_DAT) {
1.248 paf 944: VHash& hash=*new VHash();
945: HashStringValue &h=hash.hash();
1.244 paf 946: if(as_attachment)
1.248 paf 947: h.put(value_name, new VString(content_disposition_value));
948: h.put(content_disposition_filename_name, vfile_name);
949: response.fields().put(content_disposition_name, &hash);
1.267 paf 950:
951: if(!body_file_content_type)
952: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 953: }
1.267 paf 954: }
955:
956: // set content-type
957: if(body_file_content_type) {
958: // body file content type
959: response.fields().put(content_type_name, body_file_content_type);
960: } else {
961: // default content type
962: response.fields().put_dont_replace(content_type_name,
963: new VString(*new String(DEFAULT_CONTENT_TYPE)));
964: }
1.49 paf 965:
1.62 paf 966: // prepare header: $response:fields without :body
1.267 paf 967: Add_header_attribute_info info(*this);
968: response.fields().for_each(add_header_attribute, &info);
1.50 paf 969:
1.223 paf 970: if(body_file_content_type)
1.248 paf 971: if(HashStringValue *hash=body_file_content_type->get_hash())
972: body_file_content_type=hash->get(value_name);
1.50 paf 973:
1.267 paf 974: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
975: const String& sresponse_body_file=vresponse_body_file->as_string();
976: size_t content_length=0;
977: time_t atime=0, mtime=0, ctime=0;
978: file_stat(absolute(sresponse_body_file),
979: content_length,
980: atime, mtime, ctime);
981:
982: VDate* vdate=0;
983: if(Value* v=body_file->fields().get("mdate")) {
984: if(Value* vdatep=v->as(VDATE_TYPE, false))
985: vdate=static_cast<VDate*>(vdatep);
986: else
987: throw Exception("parser.runtime", 0, "mdate must be a date");
988: }
989: if(!vdate)
990: vdate=new VDate(mtime);
1.62 paf 991:
1.267 paf 992: output_pieces(*this, header_only,
993: sresponse_body_file,
994: content_length,
995: *vdate,
996: info.add_last_modified);
997: } else {
998: output_sole_piece(*this, header_only,
999: *body_file, body_file_content_type);
1000: }
1.50 paf 1001: }
1.104 paf 1002:
1.248 paf 1003: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 1004: if(mime_types)
1.248 paf 1005: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
1006: String sext(++cext);
1.246 paf 1007: Table::Action_options options;
1.248 paf 1008: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
1009: if(const String* result=mime_types->item(1))
1010: return *result;
1.104 paf 1011: else
1.197 paf 1012: throw Exception("parser.runtime",
1.248 paf 1013: 0,
1.212 paf 1014: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 1015: }
1.248 paf 1016:
1017: return *new String("application/octet-stream");
1018: }
1019:
1020: #ifdef XML
1021: GdomeDOMString_auto_ptr Request::transcode(const String& s) {
1022: return charsets.source().transcode(s);
1023: }
1024:
1.249 paf 1025: GdomeDOMString_auto_ptr Request::transcode(const String::Body s) {
1.248 paf 1026: return charsets.source().transcode(s);
1027: }
1028:
1029: const String& Request::transcode(GdomeDOMString* s) {
1030: return charsets.source().transcode(s);
1031: }
1032:
1033: const String& Request::transcode(xmlChar* s) {
1034: return charsets.source().transcode(s);
1.233 paf 1035: }
1.248 paf 1036: #endif
1037:
1038:
1039: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
1040: Trace result;
1041: if(!is_empty()) {
1042: result=bottom_value();
1043: if(!problem_source) { // we don't know who trigged the bug?
1044: problem_source=result.name(); // consider the stack-top-guy did that
1045: fbottom++;
1046: } else if(result.name()==problem_source) // it is that same guy?
1047: fbottom++; // throw away that trace
1048: // else stack top contains not us,
1049: // leaving result intact
1050: // it would help ^throw
1051: }
1052:
1053: return result;
1054: }
1055:
1056: Request::Exception_details Request::get_details(const Exception& e) {
1057: const String* problem_source=e.problem_source();
1058: Trace trace=exception_trace.extract_origin(problem_source);
1059:
1060: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
1061:
1062: // $.type
1063: if(const char* type=e.type(true))
1064: hash.put(exception_type_part_name, new VString(*new String(type)));
1065:
1066: // $.source
1067: if(problem_source) {
1068: String& source=*new String;
1069: source.append(*problem_source, String::L_TAINTED, true/*forced*/);
1070:
1071: hash.put(exception_source_part_name, new VString(source));
1072: }
1073:
1074: // $.file lineno colno
1075: if(trace) {
1076: const Operation::Origin origin=trace.origin();
1.263 paf 1077: hash.put(String::Body("file"),
1.248 paf 1078: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 1079: hash.put(String::Body("lineno"), new VInt(1+origin.line));
1080: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 1081: }
1082:
1083: // $.comment
1084: if(const char* comment=e.comment(true))
1085: hash.put(exception_comment_part_name,
1086: new VString(*new String(comment, 0, true/*tainted*/)));
1087:
1088: // $.handled(0)
1089: hash.put(exception_handled_part_name, new VBool(false));
1.233 paf 1090:
1.248 paf 1091: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 1092: }
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