Annotation of parser3/src/main/pa_request.C, revision 1.299
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.299 ! misha 4: Copyright (c) 2001-2009 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:
1.299 ! misha 8: static const char * const IDENT_REQUEST_C="$Date: 2008-07-15 12:54:37 $";
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"
1.297 misha 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);
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)),
1.298 misha 129: cookie(*new VCookie(charsets, arequest_info)),
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
1.294 misha 163: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form));
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 mail received
310: mail.fill_received(*this);
311:
1.211 paf 312: // loading config
313: if(config_filespec) {
1.248 paf 314: const String& filespec=*new String(config_filespec);
1.233 paf 315: use_file(main_class,
1.248 paf 316: filespec, 0 /*main_alias*/,
317: true /*ignore class_path*/,
318: config_fail_on_read_problem,
319: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 320: }
1.8 paf 321:
1.72 paf 322: // loading auto.p files from document_root/..
323: // to the one beside requested file.
324: // all assigned bases from upper dir
325: {
1.248 paf 326: const char* after=request_info.path_translated;
327: size_t drlen=strlen(request_info.document_root);
328: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 329: after+=drlen;
330: if(after[-1]=='/')
331: --after;
332: }
333:
1.248 paf 334: while(const char* before=strchr(after, '/')) {
335: String& sfile_spec=*new String;
336: if(after!=request_info.path_translated) {
337: sfile_spec.append_strdup(
338: request_info.path_translated, before-request_info.path_translated,
339: String::L_CLEAN);
1.152 parser 340: sfile_spec << "/" AUTO_FILE_NAME;
341:
1.233 paf 342: use_file(main_class,
1.248 paf 343: sfile_spec,
344: 0 /*main_alias*/,
345: true /*ignore class_path*/,
346: true /*fail on read problem*/,
347: false /*but ignore absence, sole user*/);
1.115 paf 348: }
349: after=before+1;
1.72 paf 350: }
351: }
1.34 paf 352:
1.272 paf 353: try {
354: // compile requested file
355: String& spath_translated=*new String;
356: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
357: use_file(main_class,
358: spath_translated,
359: 0 /*main_alias*/,
360: true /*ignore class_path*/);
361:
362: configure();
363: } catch(...) {
364: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
365: rethrow;
366: }
1.25 paf 367:
1.183 paf 368: #ifdef RESOURCES_DEBUG
369: //measure:after compile
370: gettimeofday(&mt[1],NULL);
371: #endif
1.25 paf 372: // execute @main[]
1.248 paf 373: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 374: if(!body_string)
1.286 misha 375: throw Exception(PARSER_RUNTIME,
1.248 paf 376: 0,
1.145 parser 377: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 378:
1.183 paf 379: #ifdef RESOURCES_DEBUG
380: //measure:after main
381: gettimeofday(&mt[2],NULL);
382: #endif
383:
1.250 paf 384: // extract response body
385: Value* body_value=response.fields().get(download_name); // $response:download?
386: bool as_attachment=body_value!=0;
387: if(!body_value)
388: body_value=response.fields().get(body_name); // $response:body
389: if(!body_value)
390: body_value=new VString(*body_string); // just result of ^main[]
1.276 paf 391: // ensure that body_value has no just L_TAINTED parts left
392: if(body_value->is_string())
393: {
394: String& untainted=*new String();
395: untainted.append(*body_value->get_string(), flang);
396: body_value=new VString(untainted);
397: }
1.250 paf 398:
1.119 paf 399: // @postprocess
1.248 paf 400: if(Value* value=main_class.get_element(post_process_method_name, main_class, false))
401: if(Junction* junction=value->get_junction())
1.91 paf 402: if(const Method *method=junction->method) {
403: // preparing to pass parameters to
1.119 paf 404: // @postprocess[data]
1.297 misha 405: VMethodFrame frame(/*method->name, */ *junction, 0/*no parent*/);
1.233 paf 406: frame.set_self(main_class);
1.91 paf 407:
1.250 paf 408: frame.store_param(*body_value);
409: body_value=&execute_method(frame, *method).as_value();
1.91 paf 410: }
1.90 paf 411:
1.250 paf 412: VFile* body_file=body_value->as_vfile(
1.248 paf 413: String::L_UNSPECIFIED, &charsets);
1.41 paf 414:
1.183 paf 415: #ifdef RESOURCES_DEBUG
416: //measure:after postprocess
417: gettimeofday(&mt[3],NULL);
418: #endif
419:
1.45 paf 420: // OK. write out the result
1.248 paf 421: output_result(body_file, header_only, as_attachment);
1.183 paf 422:
423: #ifdef RESOURCES_DEBUG
424: //measure:after output_result
425: gettimeofday(&mt[9],NULL);
426: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
427:
428: double t[10];
429: for(int i=0;i<10;i++)
430: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
431: //measure:log2 compile,main,postprocess,output
1.248 paf 432: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
433: request_info.uri,
1.183 paf 434: t[1]-t[0],
435: t[2]-t[1],
436: t[3]-t[2],
437: sql_connect_time,sql_request_time,
438: t[9]-t[3]
439: );
440: #endif
1.171 parser 441: } catch(const Exception& e) { // request handling problem
1.268 paf 442: try {
1.76 paf 443: // we're returning not result, but error explanation
1.269 paf 444:
445: Request::Exception_details details=get_details(e);
446: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 447:
448: // reset language to default
449: flang=fdefault_lang;
450:
451: // reset response
452: response.fields().clear();
453:
454: // this is what we'd return in $response:body
455: const String* body_string=0;
456:
457: // maybe we'd be lucky enough as to report an error
458: // in a gracefull way...
459: if(Value* value=main_class.get_element(
460: *new String(UNHANDLED_EXCEPTION_METHOD_NAME),
461: main_class,
462: false)) {
463: if(Junction* junction=value->get_junction()) {
464: if(const Method *method=junction->method) {
1.287 misha 465: // preparing to pass parameters to
466: // @unhandled_exception[exception;stack]
1.297 misha 467: VMethodFrame frame(/*method->name, */ *junction, 0/*no caller*/);
1.287 misha 468: frame.set_self(main_class);
469:
470: // $exception
471: frame.store_param(details.vhash);
472: // $stack[^table::create{name file lineno colno}]
473: Table::columns_type stack_trace_columns(new ArrayString);
474: *stack_trace_columns+=new String("name");
475: *stack_trace_columns+=new String("file");
476: *stack_trace_columns+=new String("lineno");
477: *stack_trace_columns+=new String("colno");
478: Table& stack_trace=*new Table(stack_trace_columns);
479: if(!exception_trace.is_empty()/*signed!*/)
480: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
481: Trace trace=exception_trace.get(i);
482: Table::element_type row(new ArrayString);
483:
484: *row+=trace.name(); // name column
485: Operation::Origin origin=trace.origin();
486: if(origin.file_no) {
487: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
488: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
489: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
490: }
491: stack_trace+=row;
492: }
493:
494: frame.store_param(*new VTable(&stack_trace));
495:
496: // future $response:body=
497: // execute ^unhandled_exception[exception;stack]
498: 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)
499: body_string=&execute_method(frame, *method).as_string();
1.233 paf 500: }
1.30 paf 501: }
1.258 paf 502: }
503:
504: if(!body_string) { // couldn't report an error beautifully?
505: // doing that ugly
506:
507: // future $response:content-type
508: response.fields().put(content_type_name,
509: new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
510: // future $response:body
1.269 paf 511: body_string=new String(exception_cstr);
1.258 paf 512: }
1.41 paf 513:
1.258 paf 514: VString body_vstring(*body_string);
515: VFile* body_file=body_vstring.as_vfile(String::L_UNSPECIFIED, &charsets);
1.90 paf 516:
1.273 paf 517: // conditionally log it
518: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
519: if(!vhandled || !vhandled->as_bool()) {
520: SAPI::log(sapi_info, "%s", exception_cstr);
521: }
522:
1.258 paf 523: // ERROR. write it out
524: output_result(body_file, header_only, false);
1.287 misha 525:
1.273 paf 526: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 527: Request::Exception_details details=get_details(e);
528: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 529: // unconditionally log the beast
530: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 531:
532: throw Exception(0,
533: 0,
534: "in %s",
535: exception_cstr);
1.268 paf 536: }
1.1 paf 537: }
538: }
539:
1.266 paf 540: uint Request::register_file(String::Body file_spec) {
1.248 paf 541: file_list+=file_spec;
542: return file_list.count()-1;
543: }
544:
545: void Request::use_file(VStateless_class& aclass,
546: const String& file_name, const String* main_alias,
547: bool ignore_class_path,
548: bool fail_on_read_problem,
549: bool fail_on_file_absence) {
1.73 paf 550: // cyclic dependence check
1.148 parser 551: if(used_files.get(file_name))
1.248 paf 552: return;
553: used_files.put(file_name, true);
1.73 paf 554:
1.248 paf 555: const String* file_spec;
1.153 parser 556: if(ignore_class_path) // ignore_class_path?
1.148 parser 557: file_spec=&file_name;
1.248 paf 558: else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.153 parser 559: file_spec=&absolute(file_name);
560: else {
561: file_spec=0;
1.248 paf 562: if(Value* element=main_class.get_element(class_path_name, main_class, false)) {
1.233 paf 563: if(element->is_string()) {
1.278 paf 564: file_spec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 565: } else if(Table *table=element->get_table()) {
1.248 paf 566: int size=table->count();
1.233 paf 567: for(int i=size; i--; ) {
1.248 paf 568: const String& path=*(*table->get(i))[0];
1.278 paf 569: if((file_spec=file_exist(absolute(path), file_name)))
1.233 paf 570: break; // found along class_path
571: }
572: } else
1.286 misha 573: throw Exception(PARSER_RUNTIME,
1.233 paf 574: 0,
575: "$" CLASS_PATH_NAME " must be string or table");
576: if(!file_spec)
1.286 misha 577: throw Exception(PARSER_RUNTIME,
1.233 paf 578: &file_name,
579: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
580: }
1.153 parser 581: if(!file_spec)
1.286 misha 582: throw Exception(PARSER_RUNTIME,
1.153 parser 583: &file_name,
1.203 paf 584: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 585: }
1.230 paf 586:
587: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
588: if(!entry_exists(*file_spec))
1.248 paf 589: return;
1.3 paf 590:
1.248 paf 591: if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem))
592: use_buf(aclass, source, main_alias, register_file(*file_spec));
1.16 paf 593: }
594:
1.208 paf 595:
1.248 paf 596: void Request::use_buf(VStateless_class& aclass,
597: const char* source, const String* main_alias,
1.266 paf 598: uint file_no,
599: int line_no_offset) {
1.233 paf 600: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 601: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 602: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 603: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 604:
1.295 misha 605: // compile loaded classes
606: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 607:
1.248 paf 608: VString* vfilespec=
609: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 610:
611: for(size_t i=0; i<cclasses.count(); i++){
612: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 613:
614: // locate and execute possible @conf[] static
1.295 misha 615: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
616: conf_method_name, vfilespec,
617: false/*no string result needed*/);
618: if(executed.method)
619: configure_admin(cclass/*, executed.method->name*/);
620:
621: // locate and execute possible @auto[] static
622: execute_nonvirtual_method(cclass,
623: auto_method_name, vfilespec,
624: false/*no result needed*/);
625: }
1.19 paf 626: }
627:
1.248 paf 628: const String& Request::relative(const char* apath, const String& relative_name) {
629: char *hpath=strdup(apath);
630: String& result=*new String;
631: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 632: result << hpath << "/";
1.248 paf 633: result << relative_name;
634: return result;
1.19 paf 635: }
636:
1.77 paf 637: const String& Request::absolute(const String& relative_name) {
1.217 paf 638: if(relative_name.first_char()=='/') {
1.248 paf 639: String& result=*new String(strdup(request_info.document_root));
1.104 paf 640: result << relative_name;
1.19 paf 641: return result;
642: } else
1.248 paf 643: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 644: #ifdef WIN32
645: || relative_name.pos(":")==1 // DRIVE:
646: || relative_name.starts_with("\\\\") // UNC1
647: || relative_name.starts_with("//") // UNC2
648: #endif
649: )
650: return relative_name;
651: else
1.248 paf 652: return relative(request_info.path_translated, relative_name);
1.1 paf 653: }
1.45 paf 654:
1.267 paf 655: #ifndef DOXYGEN
656: class Add_header_attribute_info
657: {
658: public:
659: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
660: Request& r;
661: bool add_last_modified;
662: };
663: #endif
1.248 paf 664: static void add_header_attribute(
1.290 misha 665: HashStringValue::key_type name,
666: HashStringValue::value_type value,
1.267 paf 667: Add_header_attribute_info* info) {
1.290 misha 668: if(name==BODY_NAME
669: || name==DOWNLOAD_NAME
670: || name==CHARSET_NAME)
1.101 paf 671: return;
1.290 misha 672:
673: const char* aname=String(name, String::L_URI).cstr(String::L_UNSPECIFIED, 0, &info->r.charsets);
1.101 paf 674:
1.267 paf 675: SAPI::add_header_attribute(info->r.sapi_info,
1.290 misha 676: aname,
1.292 misha 677: attributed_meaning_to_string(*value, String::L_URI, false).cstr(String::L_UNSPECIFIED, 0, &info->r.charsets));
1.267 paf 678:
1.290 misha 679: if(strcasecmp(aname, "last-modified")==0)
1.267 paf 680: info->add_last_modified = false;
681: }
682:
683: static void output_sole_piece(Request& r,
684: bool header_only,
685: VFile& body_file,
686: Value* body_file_content_type) {
687: // transcode text body when "text/*" or simple result
688: String::C output(body_file.value_ptr(), body_file.value_size());
689: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
690: output=Charset::transcode(output,
691: r.charsets.source(),
692: r.charsets.client());
693:
694: // prepare header: content-length
695: char content_length_cstr[MAX_NUMBER];
696: snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length);
697: SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr);
698:
699: // send header
700: SAPI::send_header(r.sapi_info);
701:
702: // send body
703: if(!header_only)
704: SAPI::send_body(r.sapi_info, output.str, output.length);
705: }
706:
707: #ifndef DOXYGEN
708: struct Range
709: {
710: size_t start;
711: size_t end;
712: };
713: #endif
714: static void parse_range(const String* s, Array<Range> &ar)
715: {
716: const char *p = s->cstr();
717: if(s->starts_with("bytes="))
718: p += 6;
719: Range r;
720: while(*p){
721: r.start = (size_t)-1;
722: r.end = (size_t)-1;
723: if(*p >= '0' && *p <= '9'){
724: r.start = atol(p);
725: while(*p>='0' && *p<='9') ++p;
726: }
727: if(*p++ != '-') break;
728: if(*p >= '0' && *p <= '9'){
729: r.end = atol(p);
730: while(*p>='0' && *p<='9') ++p;
731: }
732: if(*p == ',') ++p;
733: ar += r;
734: }
1.101 paf 735: }
1.267 paf 736:
737: static void output_pieces(Request& r,
738: bool header_only,
739: const String& filename,
740: size_t content_length,
741: Value& date,
742: bool add_last_modified)
743: {
1.270 paf 744: SAPI::add_header_attribute(r.sapi_info, "Accept-Ranges", "bytes");
745:
1.267 paf 746: const size_t BUFSIZE = 10*0x400;
747: char buf[BUFSIZE];
748: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
749: size_t offset=0;
750: size_t part_length=content_length;
751: if(range){
752: Array<Range> ar;
753: parse_range(new String(range), ar);
754: size_t count = ar.count();
755: if(count == 1){
756: Range &rg = ar.get_ref(0);
757: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
758: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
759: return;
760: }
761: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
762: rg.start = content_length - rg.end;
763: rg.end = content_length;
764: offset += rg.start;
765: part_length = rg.end-rg.start;
766: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
767: rg.end = content_length-1;
768: offset += rg.start;
769: part_length -= rg.start;
770: }
771: if(part_length == 0){
772: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
773: return;
774: }
775: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
776: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
777: SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf);
778: }else if(count != 0){
779: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
780: return;
781: }
782: }
783:
784:
785: snprintf(buf, BUFSIZE, "%u", part_length);
786: SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf);
787:
788: if(add_last_modified){
789: const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true);
790: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
791: }
792: SAPI::send_header(r.sapi_info);
793:
794: const String& filespec=r.absolute(filename);
795:
796: size_t sent = 0;
797: if(!header_only){
798: size_t to_read = 0;
799: size_t size = 0;
800: do{
801: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
802: File_read_result read_result=file_read(r.charsets, filespec,
803: false /*as text*/, 0/*params*/, true/*fail on problem*/,
804: buf, offset, to_read);
805: to_read=read_result.length;
806: if(to_read == 0)
807: break;
808: offset += to_read;
809:
810: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
811: sent += size;
812: if(size != to_read)
813: break;
814: part_length -= to_read;
815: }while(part_length);
816: }
817: }
818:
1.248 paf 819: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 820: // header: cookies
1.248 paf 821: cookie.output_result(sapi_info);
1.51 paf 822:
1.267 paf 823: // may be specified
824: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 825:
826: // content-disposition
1.267 paf 827: Value* vfile_name=body_file->fields().get(name_name);
828: if(!vfile_name) {
829: vfile_name=body_file->fields().get(response_body_file_name);
1.274 paf 830: if(vfile_name)
831: {
832: const String& sfile_name=vfile_name->as_string();
1.267 paf 833:
1.274 paf 834: char* name_cstr=sfile_name.cstrm();
835: if(char *after_slash=rsplit(name_cstr, '\\'))
836: name_cstr=after_slash;
837: if(char *after_slash=rsplit(name_cstr, '/'))
838: name_cstr=after_slash;
839: vfile_name=new VString(*new String(name_cstr));
840: }
1.267 paf 841: }
842: if(vfile_name) {
843: const String& sfile_name=vfile_name->as_string();
844: if(sfile_name!=NONAME_DAT) {
1.283 misha 845: VHash& hash=*new VHash();
846: HashStringValue &h=hash.hash();
1.288 misha 847: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.283 misha 848:
849: h.put(content_disposition_filename_name, vfile_name);
850: response.fields().put(content_disposition_name, &hash);
1.267 paf 851:
852: if(!body_file_content_type)
853: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 854: }
1.267 paf 855: }
856:
857: // set content-type
858: if(body_file_content_type) {
859: // body file content type
860: response.fields().put(content_type_name, body_file_content_type);
861: } else {
862: // default content type
863: response.fields().put_dont_replace(content_type_name,
864: new VString(*new String(DEFAULT_CONTENT_TYPE)));
865: }
1.49 paf 866:
1.62 paf 867: // prepare header: $response:fields without :body
1.267 paf 868: Add_header_attribute_info info(*this);
1.281 paf 869: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 870:
1.223 paf 871: if(body_file_content_type)
1.248 paf 872: if(HashStringValue *hash=body_file_content_type->get_hash())
873: body_file_content_type=hash->get(value_name);
1.50 paf 874:
1.267 paf 875: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
876: const String& sresponse_body_file=vresponse_body_file->as_string();
877: size_t content_length=0;
878: time_t atime=0, mtime=0, ctime=0;
879: file_stat(absolute(sresponse_body_file),
880: content_length,
881: atime, mtime, ctime);
882:
883: VDate* vdate=0;
884: if(Value* v=body_file->fields().get("mdate")) {
885: if(Value* vdatep=v->as(VDATE_TYPE, false))
886: vdate=static_cast<VDate*>(vdatep);
887: else
1.286 misha 888: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 889: }
890: if(!vdate)
891: vdate=new VDate(mtime);
1.62 paf 892:
1.267 paf 893: output_pieces(*this, header_only,
894: sresponse_body_file,
895: content_length,
896: *vdate,
897: info.add_last_modified);
898: } else {
899: output_sole_piece(*this, header_only,
900: *body_file, body_file_content_type);
901: }
1.50 paf 902: }
1.104 paf 903:
1.248 paf 904: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 905: if(mime_types)
1.248 paf 906: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
907: String sext(++cext);
1.246 paf 908: Table::Action_options options;
1.248 paf 909: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
910: if(const String* result=mime_types->item(1))
911: return *result;
1.104 paf 912: else
1.286 misha 913: throw Exception(PARSER_RUNTIME,
1.248 paf 914: 0,
1.212 paf 915: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 916: }
1.248 paf 917:
918: return *new String("application/octet-stream");
919: }
920:
921: #ifdef XML
1.280 paf 922: xmlChar* Request::transcode(const String& s) {
1.248 paf 923: return charsets.source().transcode(s);
924: }
925:
1.280 paf 926: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 927: return charsets.source().transcode(s);
928: }
929:
1.280 paf 930: const String& Request::transcode(const xmlChar* s) {
1.248 paf 931: return charsets.source().transcode(s);
1.233 paf 932: }
1.248 paf 933: #endif
934:
935:
936: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
937: Trace result;
938: if(!is_empty()) {
939: result=bottom_value();
940: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 941: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 942: fbottom++;
943: } else if(result.name()==problem_source) // it is that same guy?
944: fbottom++; // throw away that trace
1.279 paf 945: else {
946: // stack top contains not us,
947: // leaving result intact
948: // it would help ^throw
949: }
1.248 paf 950: }
951:
952: return result;
953: }
954:
955: Request::Exception_details Request::get_details(const Exception& e) {
956: const String* problem_source=e.problem_source();
957: Trace trace=exception_trace.extract_origin(problem_source);
958:
959: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
960:
961: // $.type
962: if(const char* type=e.type(true))
963: hash.put(exception_type_part_name, new VString(*new String(type)));
964:
965: // $.source
966: if(problem_source) {
967: String& source=*new String;
968: source.append(*problem_source, String::L_TAINTED, true/*forced*/);
969:
970: hash.put(exception_source_part_name, new VString(source));
971: }
972:
973: // $.file lineno colno
974: if(trace) {
975: const Operation::Origin origin=trace.origin();
1.263 paf 976: hash.put(String::Body("file"),
1.248 paf 977: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 978: hash.put(String::Body("lineno"), new VInt(1+origin.line));
979: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 980: }
981:
982: // $.comment
983: if(const char* comment=e.comment(true))
984: hash.put(exception_comment_part_name,
985: new VString(*new String(comment, 0, true/*tainted*/)));
986:
987: // $.handled(0)
1.299 ! misha 988: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 989:
1.248 paf 990: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 991: }
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