Annotation of parser3/src/main/pa_request.C, revision 1.278
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:
1.278 ! paf 8: static const char * const IDENT_REQUEST_C="$Date: 2005/11/21 11:30:27 $";
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"
56:
57: // globals
58:
59: const String main_method_name(MAIN_METHOD_NAME);
60: const String auto_method_name(AUTO_METHOD_NAME);
61: const String content_disposition_name(CONTENT_DISPOSITION_NAME);
62: const String content_disposition_value(CONTENT_DISPOSITION_VALUE);
63: const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME);
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"
74: #define ORIGINS_MODE_NAME "ORIGINS"
75: #define CONF_METHOD_NAME "conf"
76: #define POST_PROCESS_METHOD_NAME "postprocess"
77: #define DOWNLOAD_NAME "download"
78: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 79: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 80:
81: // statics
82:
83: static const String charsets_name(CHARSETS_NAME);
84: static const String main_class_name(MAIN_CLASS_NAME);
85: static const String mime_types_name(MIME_TYPES_NAME);
86: static const String origins_mode_name(ORIGINS_MODE_NAME);
87: static const String conf_method_name(CONF_METHOD_NAME);
88: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
89: static const String download_name(DOWNLOAD_NAME);
90: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 91: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 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: }
1.272 paf 274:
275: void Request::configure() {
276: // configure admin options if not configured yet
277: if(!configure_admin_done)
278: configure_admin(main_class);
279:
280: // configure not-admin=user options
281: methoded_array().configure_user(*this);
282:
283: // $MAIN:MIME-TYPES
284: if(Value* element=main_class.get_element(mime_types_name, main_class, false))
285: if(Table *table=element->get_table())
286: mime_types=table;
287: }
1.64 paf 288: /**
289: load MAIN class, execute @main.
290: MAIN class consists of all the auto.p files we'd manage to find
291: plus
292: the file user requested us to process
293: all located classes become children of one another,
294: composing class we name 'MAIN'
1.180 paf 295:
296: @test log stack trace
297:
1.64 paf 298: */
1.248 paf 299: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.183 paf 300: #ifdef RESOURCES_DEBUG
301: //measures
302: struct timeval mt[10];
303: //measure:before all
304: gettimeofday(&mt[0],NULL);
305: #endif
1.169 parser 306: try {
1.271 paf 307: // filling cookies
308: cookie.fill_fields(request_info);
309:
310: // filling mail received
311: mail.fill_received(*this);
312:
1.211 paf 313: // loading config
314: if(config_filespec) {
1.248 paf 315: const String& filespec=*new String(config_filespec);
1.233 paf 316: use_file(main_class,
1.248 paf 317: filespec, 0 /*main_alias*/,
318: true /*ignore class_path*/,
319: config_fail_on_read_problem,
320: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 321: }
1.8 paf 322:
1.72 paf 323: // loading auto.p files from document_root/..
324: // to the one beside requested file.
325: // all assigned bases from upper dir
326: {
1.248 paf 327: const char* after=request_info.path_translated;
328: size_t drlen=strlen(request_info.document_root);
329: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 330: after+=drlen;
331: if(after[-1]=='/')
332: --after;
333: }
334:
1.248 paf 335: while(const char* before=strchr(after, '/')) {
336: String& sfile_spec=*new String;
337: if(after!=request_info.path_translated) {
338: sfile_spec.append_strdup(
339: request_info.path_translated, before-request_info.path_translated,
340: String::L_CLEAN);
1.152 parser 341: sfile_spec << "/" AUTO_FILE_NAME;
342:
1.233 paf 343: use_file(main_class,
1.248 paf 344: sfile_spec,
345: 0 /*main_alias*/,
346: true /*ignore class_path*/,
347: true /*fail on read problem*/,
348: false /*but ignore absence, sole user*/);
1.115 paf 349: }
350: after=before+1;
1.72 paf 351: }
352: }
1.34 paf 353:
1.272 paf 354: try {
355: // compile requested file
356: String& spath_translated=*new String;
357: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
358: use_file(main_class,
359: spath_translated,
360: 0 /*main_alias*/,
361: true /*ignore class_path*/);
362:
363: configure();
364: } catch(...) {
365: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
366: rethrow;
367: }
1.25 paf 368:
1.183 paf 369: #ifdef RESOURCES_DEBUG
370: //measure:after compile
371: gettimeofday(&mt[1],NULL);
372: #endif
1.25 paf 373: // execute @main[]
1.248 paf 374: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 375: if(!body_string)
1.197 paf 376: throw Exception("parser.runtime",
1.248 paf 377: 0,
1.145 parser 378: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 379:
1.183 paf 380: #ifdef RESOURCES_DEBUG
381: //measure:after main
382: gettimeofday(&mt[2],NULL);
383: #endif
384:
1.250 paf 385: // extract response body
386: Value* body_value=response.fields().get(download_name); // $response:download?
387: bool as_attachment=body_value!=0;
388: if(!body_value)
389: body_value=response.fields().get(body_name); // $response:body
390: if(!body_value)
391: body_value=new VString(*body_string); // just result of ^main[]
1.276 paf 392: // ensure that body_value has no just L_TAINTED parts left
393: if(body_value->is_string())
394: {
395: String& untainted=*new String();
396: untainted.append(*body_value->get_string(), flang);
397: body_value=new VString(untainted);
398: }
1.250 paf 399:
1.119 paf 400: // @postprocess
1.248 paf 401: if(Value* value=main_class.get_element(post_process_method_name, main_class, false))
402: if(Junction* junction=value->get_junction())
1.91 paf 403: if(const Method *method=junction->method) {
404: // preparing to pass parameters to
1.119 paf 405: // @postprocess[data]
1.248 paf 406: VMethodFrame frame(/*method->name, */ *junction, 0/*no parent*/);
1.233 paf 407: frame.set_self(main_class);
1.91 paf 408:
1.250 paf 409: frame.store_param(*body_value);
410: body_value=&execute_method(frame, *method).as_value();
1.91 paf 411: }
1.90 paf 412:
1.250 paf 413: VFile* body_file=body_value->as_vfile(
1.248 paf 414: String::L_UNSPECIFIED, &charsets);
1.41 paf 415:
1.183 paf 416: #ifdef RESOURCES_DEBUG
417: //measure:after postprocess
418: gettimeofday(&mt[3],NULL);
419: #endif
420:
1.45 paf 421: // OK. write out the result
1.248 paf 422: output_result(body_file, header_only, as_attachment);
1.183 paf 423:
424: #ifdef RESOURCES_DEBUG
425: //measure:after output_result
426: gettimeofday(&mt[9],NULL);
427: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
428:
429: double t[10];
430: for(int i=0;i<10;i++)
431: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
432: //measure:log2 compile,main,postprocess,output
1.248 paf 433: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
434: request_info.uri,
1.183 paf 435: t[1]-t[0],
436: t[2]-t[1],
437: t[3]-t[2],
438: sql_connect_time,sql_request_time,
439: t[9]-t[3]
440: );
441: #endif
1.171 parser 442: } catch(const Exception& e) { // request handling problem
1.268 paf 443: try {
1.76 paf 444: // we're returning not result, but error explanation
1.269 paf 445:
446: Request::Exception_details details=get_details(e);
447: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 448:
449: // reset language to default
450: flang=fdefault_lang;
451:
452: // reset response
453: response.fields().clear();
454:
455: // this is what we'd return in $response:body
456: const String* body_string=0;
457:
458: // maybe we'd be lucky enough as to report an error
459: // in a gracefull way...
460: if(Value* value=main_class.get_element(
461: *new String(UNHANDLED_EXCEPTION_METHOD_NAME),
462: main_class,
463: false)) {
464: if(Junction* junction=value->get_junction()) {
465: if(const Method *method=junction->method) {
1.248 paf 466: // preparing to pass parameters to
467: // @unhandled_exception[exception;stack]
468: VMethodFrame frame(/*method->name, */ *junction, 0/*no caller*/);
469: frame.set_self(main_class);
470:
471: // $exception
472: frame.store_param(details.vhash);
473: // $stack[^table::set{name origin}]
474: Table::columns_type stack_trace_columns(new ArrayString);
475: *stack_trace_columns+=new String("name");
476: *stack_trace_columns+=new String("file");
477: *stack_trace_columns+=new String("lineno");
478: *stack_trace_columns+=new String("colno");
479: Table& stack_trace=*new Table(stack_trace_columns);
480: if(!exception_trace.is_empty()/*signed!*/)
1.258 paf 481: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
482: Trace trace=exception_trace.get(i);
483: Table::element_type row(new ArrayString);
484:
485: *row+=trace.name(); // name column
486: Operation::Origin origin=trace.origin();
487: if(origin.file_no) {
488: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
489: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
490: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
1.248 paf 491: }
1.258 paf 492: stack_trace+=row;
493: }
1.248 paf 494: frame.store_param(*new VTable(&stack_trace));
495:
496: // future $response:body=
497: // execute ^unhandled_exception[exception;stack]
1.250 paf 498: body_string=&execute_method(frame, *method).as_string();
1.233 paf 499: }
1.30 paf 500: }
1.258 paf 501: }
502:
503: if(!body_string) { // couldn't report an error beautifully?
504: // doing that ugly
505:
506: // future $response:content-type
507: response.fields().put(content_type_name,
508: new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
509: // future $response:body
1.269 paf 510: body_string=new String(exception_cstr);
1.258 paf 511: }
1.41 paf 512:
1.258 paf 513: VString body_vstring(*body_string);
514: VFile* body_file=body_vstring.as_vfile(String::L_UNSPECIFIED, &charsets);
1.90 paf 515:
1.273 paf 516: // conditionally log it
517: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
518: if(!vhandled || !vhandled->as_bool()) {
519: SAPI::log(sapi_info, "%s", exception_cstr);
520: }
521:
1.258 paf 522: // ERROR. write it out
523: output_result(body_file, header_only, false);
1.273 paf 524: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 525: Request::Exception_details details=get_details(e);
526: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 527: // unconditionally log the beast
528: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 529:
530: throw Exception(0,
531: 0,
532: "in %s",
533: exception_cstr);
1.268 paf 534: }
1.1 paf 535: }
536: }
537:
1.266 paf 538: uint Request::register_file(String::Body file_spec) {
1.248 paf 539: file_list+=file_spec;
540: return file_list.count()-1;
541: }
542:
543: void Request::use_file(VStateless_class& aclass,
544: const String& file_name, const String* main_alias,
545: bool ignore_class_path,
546: bool fail_on_read_problem,
547: bool fail_on_file_absence) {
1.73 paf 548: // cyclic dependence check
1.148 parser 549: if(used_files.get(file_name))
1.248 paf 550: return;
551: used_files.put(file_name, true);
1.73 paf 552:
1.248 paf 553: const String* file_spec;
1.153 parser 554: if(ignore_class_path) // ignore_class_path?
1.148 parser 555: file_spec=&file_name;
1.248 paf 556: else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.153 parser 557: file_spec=&absolute(file_name);
558: else {
559: file_spec=0;
1.248 paf 560: if(Value* element=main_class.get_element(class_path_name, main_class, false)) {
1.233 paf 561: if(element->is_string()) {
1.278 ! paf 562: file_spec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 563: } else if(Table *table=element->get_table()) {
1.248 paf 564: int size=table->count();
1.233 paf 565: for(int i=size; i--; ) {
1.248 paf 566: const String& path=*(*table->get(i))[0];
1.278 ! paf 567: if((file_spec=file_exist(absolute(path), file_name)))
1.233 paf 568: break; // found along class_path
569: }
570: } else
571: throw Exception("parser.runtime",
572: 0,
573: "$" CLASS_PATH_NAME " must be string or table");
574: if(!file_spec)
575: throw Exception("parser.runtime",
576: &file_name,
577: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
578: }
1.153 parser 579: if(!file_spec)
1.197 paf 580: throw Exception("parser.runtime",
1.153 parser 581: &file_name,
1.203 paf 582: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 583: }
1.230 paf 584:
585: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
586: if(!entry_exists(*file_spec))
1.248 paf 587: return;
1.3 paf 588:
1.248 paf 589: if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem))
590: use_buf(aclass, source, main_alias, register_file(*file_spec));
1.16 paf 591: }
592:
1.208 paf 593:
1.248 paf 594: void Request::use_buf(VStateless_class& aclass,
595: const char* source, const String* main_alias,
1.266 paf 596: uint file_no,
597: int line_no_offset) {
1.233 paf 598: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 599: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 600: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 601: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 602:
1.5 paf 603: // compile loaded class
1.266 paf 604: VStateless_class& cclass=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 605:
1.233 paf 606: // locate and execute possible @conf[] static
1.248 paf 607: VString* vfilespec=
608: new VString(*new String(file_list[file_no], String::L_TAINTED));
609: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
610: conf_method_name, vfilespec,
611: false/*no string result needed*/);
612: if(executed.method)
613: configure_admin(cclass/*, executed.method->name*/);
1.208 paf 614:
615: // locate and execute possible @auto[] static
1.233 paf 616: execute_nonvirtual_method(cclass,
1.248 paf 617: auto_method_name, vfilespec,
618: false/*no result needed*/);
1.19 paf 619: }
620:
1.248 paf 621: const String& Request::relative(const char* apath, const String& relative_name) {
622: char *hpath=strdup(apath);
623: String& result=*new String;
624: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 625: result << hpath << "/";
1.248 paf 626: result << relative_name;
627: return result;
1.19 paf 628: }
629:
1.77 paf 630: const String& Request::absolute(const String& relative_name) {
1.217 paf 631: if(relative_name.first_char()=='/') {
1.248 paf 632: String& result=*new String(strdup(request_info.document_root));
1.104 paf 633: result << relative_name;
1.19 paf 634: return result;
635: } else
1.248 paf 636: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 637: #ifdef WIN32
638: || relative_name.pos(":")==1 // DRIVE:
639: || relative_name.starts_with("\\\\") // UNC1
640: || relative_name.starts_with("//") // UNC2
641: #endif
642: )
643: return relative_name;
644: else
1.248 paf 645: return relative(request_info.path_translated, relative_name);
1.1 paf 646: }
1.45 paf 647:
1.267 paf 648: #ifndef DOXYGEN
649: class Add_header_attribute_info
650: {
651: public:
652: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
653: Request& r;
654: bool add_last_modified;
655: };
656: #endif
1.248 paf 657: static void add_header_attribute(
658: HashStringValue::key_type aattribute,
659: HashStringValue::value_type ameaning,
1.267 paf 660: Add_header_attribute_info* info) {
1.184 paf 661: if(aattribute==BODY_NAME
1.244 paf 662: || aattribute==DOWNLOAD_NAME
1.184 paf 663: || aattribute==CHARSET_NAME)
1.101 paf 664: return;
665:
1.267 paf 666: const char* a=aattribute.cstr();
667: SAPI::add_header_attribute(info->r.sapi_info,
668: a,
1.248 paf 669: attributed_meaning_to_string(*ameaning, String::L_HTTP_HEADER, false).
670: cstr(String::L_UNSPECIFIED));
1.267 paf 671:
672: if(strcasecmp(a, "last-modified")==0)
673: info->add_last_modified = false;
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:
687: // prepare header: content-length
688: char content_length_cstr[MAX_NUMBER];
689: snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length);
690: SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr);
691:
692: // send header
693: SAPI::send_header(r.sapi_info);
694:
695: // send body
696: if(!header_only)
697: SAPI::send_body(r.sapi_info, output.str, output.length);
698: }
699:
700: #ifndef DOXYGEN
701: struct Range
702: {
703: size_t start;
704: size_t end;
705: };
706: #endif
707: static void parse_range(const String* s, Array<Range> &ar)
708: {
709: const char *p = s->cstr();
710: if(s->starts_with("bytes="))
711: p += 6;
712: Range r;
713: while(*p){
714: r.start = (size_t)-1;
715: r.end = (size_t)-1;
716: if(*p >= '0' && *p <= '9'){
717: r.start = atol(p);
718: while(*p>='0' && *p<='9') ++p;
719: }
720: if(*p++ != '-') break;
721: if(*p >= '0' && *p <= '9'){
722: r.end = atol(p);
723: while(*p>='0' && *p<='9') ++p;
724: }
725: if(*p == ',') ++p;
726: ar += r;
727: }
1.101 paf 728: }
1.267 paf 729:
730: static void output_pieces(Request& r,
731: bool header_only,
732: const String& filename,
733: size_t content_length,
734: Value& date,
735: bool add_last_modified)
736: {
1.270 paf 737: SAPI::add_header_attribute(r.sapi_info, "Accept-Ranges", "bytes");
738:
1.267 paf 739: const size_t BUFSIZE = 10*0x400;
740: char buf[BUFSIZE];
741: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
742: size_t offset=0;
743: size_t part_length=content_length;
744: if(range){
745: Array<Range> ar;
746: parse_range(new String(range), ar);
747: size_t count = ar.count();
748: if(count == 1){
749: Range &rg = ar.get_ref(0);
750: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
751: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
752: return;
753: }
754: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
755: rg.start = content_length - rg.end;
756: rg.end = content_length;
757: offset += rg.start;
758: part_length = rg.end-rg.start;
759: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
760: rg.end = content_length-1;
761: offset += rg.start;
762: part_length -= rg.start;
763: }
764: if(part_length == 0){
765: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
766: return;
767: }
768: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
769: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
770: SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf);
771: }else if(count != 0){
772: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
773: return;
774: }
775: }
776:
777:
778: snprintf(buf, BUFSIZE, "%u", part_length);
779: SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf);
780:
781: if(add_last_modified){
782: const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true);
783: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
784: }
785: SAPI::send_header(r.sapi_info);
786:
787: const String& filespec=r.absolute(filename);
788:
789: size_t sent = 0;
790: if(!header_only){
791: size_t to_read = 0;
792: size_t size = 0;
793: do{
794: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
795: File_read_result read_result=file_read(r.charsets, filespec,
796: false /*as text*/, 0/*params*/, true/*fail on problem*/,
797: buf, offset, to_read);
798: to_read=read_result.length;
799: if(to_read == 0)
800: break;
801: offset += to_read;
802:
803: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
804: sent += size;
805: if(size != to_read)
806: break;
807: part_length -= to_read;
808: }while(part_length);
809: }
810: }
811:
1.248 paf 812: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 813: // header: cookies
1.248 paf 814: cookie.output_result(sapi_info);
1.51 paf 815:
1.267 paf 816: // may be specified
817: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 818:
819: // content-disposition
1.267 paf 820: Value* vfile_name=body_file->fields().get(name_name);
821: if(!vfile_name) {
822: vfile_name=body_file->fields().get(response_body_file_name);
1.274 paf 823: if(vfile_name)
824: {
825: const String& sfile_name=vfile_name->as_string();
1.267 paf 826:
1.274 paf 827: char* name_cstr=sfile_name.cstrm();
828: if(char *after_slash=rsplit(name_cstr, '\\'))
829: name_cstr=after_slash;
830: if(char *after_slash=rsplit(name_cstr, '/'))
831: name_cstr=after_slash;
832: vfile_name=new VString(*new String(name_cstr));
833: }
1.267 paf 834: }
835: if(vfile_name) {
836: const String& sfile_name=vfile_name->as_string();
837: if(sfile_name!=NONAME_DAT) {
1.244 paf 838: if(as_attachment)
1.277 paf 839: {
840: VHash& hash=*new VHash();
841: HashStringValue &h=hash.hash();
1.248 paf 842: h.put(value_name, new VString(content_disposition_value));
1.277 paf 843: h.put(content_disposition_filename_name, vfile_name);
844: response.fields().put(content_disposition_name, &hash);
845: }
1.267 paf 846:
847: if(!body_file_content_type)
848: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 849: }
1.267 paf 850: }
851:
852: // set content-type
853: if(body_file_content_type) {
854: // body file content type
855: response.fields().put(content_type_name, body_file_content_type);
856: } else {
857: // default content type
858: response.fields().put_dont_replace(content_type_name,
859: new VString(*new String(DEFAULT_CONTENT_TYPE)));
860: }
1.49 paf 861:
1.62 paf 862: // prepare header: $response:fields without :body
1.267 paf 863: Add_header_attribute_info info(*this);
864: response.fields().for_each(add_header_attribute, &info);
1.50 paf 865:
1.223 paf 866: if(body_file_content_type)
1.248 paf 867: if(HashStringValue *hash=body_file_content_type->get_hash())
868: body_file_content_type=hash->get(value_name);
1.50 paf 869:
1.267 paf 870: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
871: const String& sresponse_body_file=vresponse_body_file->as_string();
872: size_t content_length=0;
873: time_t atime=0, mtime=0, ctime=0;
874: file_stat(absolute(sresponse_body_file),
875: content_length,
876: atime, mtime, ctime);
877:
878: VDate* vdate=0;
879: if(Value* v=body_file->fields().get("mdate")) {
880: if(Value* vdatep=v->as(VDATE_TYPE, false))
881: vdate=static_cast<VDate*>(vdatep);
882: else
883: throw Exception("parser.runtime", 0, "mdate must be a date");
884: }
885: if(!vdate)
886: vdate=new VDate(mtime);
1.62 paf 887:
1.267 paf 888: output_pieces(*this, header_only,
889: sresponse_body_file,
890: content_length,
891: *vdate,
892: info.add_last_modified);
893: } else {
894: output_sole_piece(*this, header_only,
895: *body_file, body_file_content_type);
896: }
1.50 paf 897: }
1.104 paf 898:
1.248 paf 899: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 900: if(mime_types)
1.248 paf 901: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
902: String sext(++cext);
1.246 paf 903: Table::Action_options options;
1.248 paf 904: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
905: if(const String* result=mime_types->item(1))
906: return *result;
1.104 paf 907: else
1.197 paf 908: throw Exception("parser.runtime",
1.248 paf 909: 0,
1.212 paf 910: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 911: }
1.248 paf 912:
913: return *new String("application/octet-stream");
914: }
915:
916: #ifdef XML
917: GdomeDOMString_auto_ptr Request::transcode(const String& s) {
918: return charsets.source().transcode(s);
919: }
920:
1.249 paf 921: GdomeDOMString_auto_ptr Request::transcode(const String::Body s) {
1.248 paf 922: return charsets.source().transcode(s);
923: }
924:
925: const String& Request::transcode(GdomeDOMString* s) {
926: return charsets.source().transcode(s);
927: }
928:
929: const String& Request::transcode(xmlChar* s) {
930: return charsets.source().transcode(s);
1.233 paf 931: }
1.248 paf 932: #endif
933:
934:
935: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
936: Trace result;
937: if(!is_empty()) {
938: result=bottom_value();
939: if(!problem_source) { // we don't know who trigged the bug?
940: problem_source=result.name(); // consider the stack-top-guy did that
941: fbottom++;
942: } else if(result.name()==problem_source) // it is that same guy?
943: fbottom++; // throw away that trace
944: // else stack top contains not us,
945: // leaving result intact
946: // it would help ^throw
947: }
948:
949: return result;
950: }
951:
952: Request::Exception_details Request::get_details(const Exception& e) {
953: const String* problem_source=e.problem_source();
954: Trace trace=exception_trace.extract_origin(problem_source);
955:
956: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
957:
958: // $.type
959: if(const char* type=e.type(true))
960: hash.put(exception_type_part_name, new VString(*new String(type)));
961:
962: // $.source
963: if(problem_source) {
964: String& source=*new String;
965: source.append(*problem_source, String::L_TAINTED, true/*forced*/);
966:
967: hash.put(exception_source_part_name, new VString(source));
968: }
969:
970: // $.file lineno colno
971: if(trace) {
972: const Operation::Origin origin=trace.origin();
1.263 paf 973: hash.put(String::Body("file"),
1.248 paf 974: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 975: hash.put(String::Body("lineno"), new VInt(1+origin.line));
976: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 977: }
978:
979: // $.comment
980: if(const char* comment=e.comment(true))
981: hash.put(exception_comment_part_name,
982: new VString(*new String(comment, 0, true/*tainted*/)));
983:
984: // $.handled(0)
985: hash.put(exception_handled_part_name, new VBool(false));
1.233 paf 986:
1.248 paf 987: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 988: }
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