Annotation of parser3/src/main/pa_request.C, revision 1.324
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:
1.324 ! misha 8: static const char * const IDENT_REQUEST_C="$Date: 2010-08-30 10:49:05 $";
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"
1.309 misha 52: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 53: #define BODY_NAME "body"
54: #define EXCEPTION_TYPE_PART_NAME "type"
55: #define EXCEPTION_SOURCE_PART_NAME "source"
56: #define EXCEPTION_COMMENT_PART_NAME "comment"
57:
58: // globals
59:
60: const String main_method_name(MAIN_METHOD_NAME);
61: const String auto_method_name(AUTO_METHOD_NAME);
1.309 misha 62: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 63:
1.248 paf 64: const String body_name(BODY_NAME);
65: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
66: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
67: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
68: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
69:
70: // defines for statics
71:
72: #define CHARSETS_NAME "CHARSETS"
73: #define MIME_TYPES_NAME "MIME-TYPES"
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),
1.324 ! misha 103: anti_endless_json_string_recoursion(0),
1.248 paf 104:
105: // public
106: method_frame(0),
107: rcontext(0),
108: wcontext(0),
109: flang(adefault_lang),
1.191 paf 110: fconnection(0),
1.307 misha 111: finterrupted(false),
112: fskip(SKIP_NOTHING),
113: fin_cycle(0),
1.248 paf 114:
115: // public
1.183 paf 116: #ifdef RESOURCES_DEBUG
1.248 paf 117: sql_connect_time(0),
118: sql_request_time(0),
119: #endif
120:
121: // public
1.257 paf 122: request_info(arequest_info),
1.248 paf 123: sapi_info(asapi_info),
124: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
125:
126: main_class(VClassMAIN_create()),
1.260 paf 127: form(*new VForm(charsets, arequest_info)),
1.248 paf 128: mail(*new VMail),
129: response(*new VResponse(arequest_info, charsets)),
1.298 misha 130: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 131: console(*new VConsole),
1.248 paf 132:
133: // private
134: configure_admin_done(false),
135:
136: // private defaults
137: fdefault_lang(adefault_lang),
138: // private mime types
139: mime_types(0)
1.157 parser 140: {
1.261 paf 141: pa_register_thread_request(*this);
142:
1.248 paf 143: // file_no=0 => unknown
1.263 paf 144: file_list+=String::Body("UNKNOWN");
145: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 146:
1.178 paf 147: // maybe expire old caches
1.264 paf 148: cache_managers->maybe_expire();
1.178 paf 149:
1.157 parser 150: /// directly used
1.233 paf 151: // MAIN class, operators
1.235 paf 152: classes().put(main_class.name(), &main_class);
1.157 parser 153: // classes:
154: // table, file, random, mail, image, ...
1.248 paf 155: methoded_array().register_directly_used(*this);
1.157 parser 156:
157: /// methodless
158: // env class
1.249 paf 159: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 160: // status class
1.179 paf 161: if(status_allowed)
1.249 paf 162: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 163: // request class
1.294 misha 164: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form));
1.157 parser 165: // cookie class
1.249 paf 166: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 167: // console class
1.285 misha 168: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 169: /// methoded
170: // response class
1.248 paf 171: classes().put(response.get_class()->name(), &response);
1.157 parser 172:
173: /// bases used
174: // form class
1.248 paf 175: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 176: // mail class
1.248 paf 177: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 178: // math class
1.248 paf 179: {
180: Value& math=*new VMath;
181: classes().put(math.get_class()->base_class()->name(), &math);
182: }
183: // memory class
184: {
185: Value& memory=*new VMemory;
186: classes().put(memory.get_class()->base_class()->name(), &memory);
187: }
1.117 paf 188: }
1.192 paf 189:
190: Request::~Request() {
191: #ifdef XML
192: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 193: if(const char* xml_generic_errors=xmlGenericErrors()) {
194: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 195: free((void *)xml_generic_errors);
196: }
197: #endif
198: }
1.236 paf 199:
1.248 paf 200: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 201:
1.309 misha 202: Value* Request::get_class(const String& name){
203: Value* result=classes().get(name);
1.313 misha 204: if(!result)
1.309 misha 205: if(Value* value=main_class.get_element(autouse_method_name))
206: if(Junction* junction=value->get_junction())
207: if(const Method *method=junction->method) {
208: Value *vname=new VString(name);
1.322 moko 209: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 210:
211: frame.store_params(&vname, 1);
212: // we don't need the result
1.323 moko 213: execute_method(frame);
1.309 misha 214:
215: result=classes().get(name);
216: }
1.313 misha 217:
1.309 misha 218: return result;
219: }
220:
1.248 paf 221: static void load_charset(HashStringValue::key_type akey,
222: HashStringValue::value_type avalue,
223: Request_charsets* charsets) {
1.249 paf 224: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 225: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 226: }
1.248 paf 227: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 228: if(configure_admin_done)
1.286 misha 229: throw Exception(PARSER_RUNTIME,
1.248 paf 230: 0,
1.208 paf 231: "parser already configured");
232: configure_admin_done=true;
233:
1.227 paf 234: // charsets must only be specified in method_frame config
1.208 paf 235: // so that users would not interfere
236:
237: /* $MAIN:CHARSETS[
238: $.charsetname1[/full/path/to/charset/file.cfg]
239: ...
240: ]
241: */
1.308 misha 242: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.240 paf 243: if(!vcharsets->is_string())
1.248 paf 244: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 245: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 246: else
1.286 misha 247: throw Exception(PARSER_RUNTIME,
1.240 paf 248: 0,
249: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 250: }
251:
1.227 paf 252: // configure method_frame options
1.208 paf 253: // until someone with less privileges have overriden them
1.248 paf 254: methoded_array().configure_admin(*this);
1.208 paf 255: }
1.150 parser 256:
1.269 paf 257: const char* Request::get_exception_cstr(
258: const Exception& e,
259: Request::Exception_details& details) {
260: #define PA_URI_FORMAT "%s: "
261: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
262: #define PA_SOURCE_FORMAT "'%s' "
263: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
264: char* result=new(PointerFreeGC) char[MAX_STRING];
265:
266: if(details.problem_source) { // do we know the guy?
267: if(details.trace) { // do whe know where he came from?
268: Operation::Origin origin=details.trace.origin();
269: snprintf(result, MAX_STRING,
270: PA_URI_FORMAT
271: PA_ORIGIN_FILE_POS_FORMAT
272: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
273: request_info.uri,
274: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
275: details.problem_source->cstr(),
276: e.comment(), e.type()
277: );
278: } else
279: snprintf(result, MAX_STRING,
280: PA_URI_FORMAT
281: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
282: request_info.uri,
283: details.problem_source->cstr(),
284: e.comment(), e.type()
285: );
286: } else
287: snprintf(result, MAX_STRING,
288: PA_URI_FORMAT
289: PA_COMMENT_TYPE_FORMAT,
290: request_info.uri,
291: e.comment(), e.type()
292: );
293:
294: return result;
295: }
1.272 paf 296:
297: void Request::configure() {
298: // configure admin options if not configured yet
299: if(!configure_admin_done)
300: configure_admin(main_class);
301:
302: // configure not-admin=user options
303: methoded_array().configure_user(*this);
304:
305: // $MAIN:MIME-TYPES
1.308 misha 306: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 307: if(Table *table=element->get_table())
308: mime_types=table;
309: }
1.64 paf 310: /**
311: load MAIN class, execute @main.
312: MAIN class consists of all the auto.p files we'd manage to find
313: plus
314: the file user requested us to process
315: all located classes become children of one another,
316: composing class we name 'MAIN'
1.180 paf 317:
318: @test log stack trace
319:
1.64 paf 320: */
1.248 paf 321: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.183 paf 322: #ifdef RESOURCES_DEBUG
323: //measures
324: struct timeval mt[10];
325: //measure:before all
326: gettimeofday(&mt[0],NULL);
327: #endif
1.169 parser 328: try {
1.271 paf 329: // filling mail received
330: mail.fill_received(*this);
331:
1.211 paf 332: // loading config
333: if(config_filespec) {
1.248 paf 334: const String& filespec=*new String(config_filespec);
1.318 misha 335: use_file_directly(main_class,
336: filespec,
1.248 paf 337: config_fail_on_read_problem,
338: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 339: }
1.8 paf 340:
1.72 paf 341: // loading auto.p files from document_root/..
342: // to the one beside requested file.
343: // all assigned bases from upper dir
344: {
1.248 paf 345: const char* after=request_info.path_translated;
346: size_t drlen=strlen(request_info.document_root);
347: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 348: after+=drlen;
349: if(after[-1]=='/')
350: --after;
351: }
352:
1.248 paf 353: while(const char* before=strchr(after, '/')) {
354: String& sfile_spec=*new String;
355: if(after!=request_info.path_translated) {
356: sfile_spec.append_strdup(
357: request_info.path_translated, before-request_info.path_translated,
358: String::L_CLEAN);
1.152 parser 359: sfile_spec << "/" AUTO_FILE_NAME;
360:
1.318 misha 361: use_file_directly(main_class,
1.248 paf 362: sfile_spec,
363: true /*fail on read problem*/,
364: false /*but ignore absence, sole user*/);
1.115 paf 365: }
1.317 misha 366: for(after=before+1;*after=='/';after++);
1.72 paf 367: }
368: }
1.34 paf 369:
1.272 paf 370: try {
371: // compile requested file
372: String& spath_translated=*new String;
373: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 374: use_file_directly(main_class, spath_translated);
1.272 paf 375:
376: configure();
377: } catch(...) {
378: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
379: rethrow;
380: }
1.25 paf 381:
1.183 paf 382: #ifdef RESOURCES_DEBUG
383: //measure:after compile
384: gettimeofday(&mt[1],NULL);
385: #endif
1.25 paf 386: // execute @main[]
1.248 paf 387: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 388: if(!body_string)
1.286 misha 389: throw Exception(PARSER_RUNTIME,
1.248 paf 390: 0,
1.145 parser 391: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 392:
1.183 paf 393: #ifdef RESOURCES_DEBUG
394: //measure:after main
395: gettimeofday(&mt[2],NULL);
396: #endif
397:
1.250 paf 398: // extract response body
399: Value* body_value=response.fields().get(download_name); // $response:download?
400: bool as_attachment=body_value!=0;
401: if(!body_value)
402: body_value=response.fields().get(body_name); // $response:body
403: if(!body_value)
404: body_value=new VString(*body_string); // just result of ^main[]
405:
1.119 paf 406: // @postprocess
1.308 misha 407: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 408: if(Junction* junction=value->get_junction())
1.91 paf 409: if(const Method *method=junction->method) {
410: // preparing to pass parameters to
1.119 paf 411: // @postprocess[data]
1.322 moko 412: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 413:
1.300 misha 414: frame.store_params(&body_value, 1);
1.323 moko 415: execute_method(frame);
416:
417: body_value=&frame.result().as_value();
1.91 paf 418: }
1.90 paf 419:
1.303 misha 420: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 421:
1.183 paf 422: #ifdef RESOURCES_DEBUG
423: //measure:after postprocess
424: gettimeofday(&mt[3],NULL);
425: #endif
426:
1.45 paf 427: // OK. write out the result
1.248 paf 428: output_result(body_file, header_only, as_attachment);
1.183 paf 429:
430: #ifdef RESOURCES_DEBUG
431: //measure:after output_result
432: gettimeofday(&mt[9],NULL);
433: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
434:
435: double t[10];
436: for(int i=0;i<10;i++)
437: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
438: //measure:log2 compile,main,postprocess,output
1.248 paf 439: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
440: request_info.uri,
1.183 paf 441: t[1]-t[0],
442: t[2]-t[1],
443: t[3]-t[2],
444: sql_connect_time,sql_request_time,
445: t[9]-t[3]
446: );
447: #endif
1.171 parser 448: } catch(const Exception& e) { // request handling problem
1.268 paf 449: try {
1.76 paf 450: // we're returning not result, but error explanation
1.269 paf 451:
452: Request::Exception_details details=get_details(e);
453: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 454:
455: // reset language to default
456: flang=fdefault_lang;
457:
458: // reset response
459: response.fields().clear();
460:
461: // this is what we'd return in $response:body
462: const String* body_string=0;
463:
464: // maybe we'd be lucky enough as to report an error
465: // in a gracefull way...
1.308 misha 466: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 467: if(Junction* junction=value->get_junction()) {
468: if(const Method *method=junction->method) {
1.287 misha 469: // preparing to pass parameters to
470: // @unhandled_exception[exception;stack]
471:
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:
1.323 moko 494: // future $response:body=
495: // execute ^unhandled_exception[exception;stack]
496: 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)
497:
498: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 499: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 500:
1.300 misha 501: frame.store_params(params, 2);
1.323 moko 502: execute_method(frame);
1.287 misha 503:
1.323 moko 504: body_string=&frame.result().as_string();
1.233 paf 505: }
1.30 paf 506: }
1.258 paf 507: }
508:
509: if(!body_string) { // couldn't report an error beautifully?
510: // doing that ugly
511:
512: // future $response:content-type
1.314 misha 513: response.fields().put(http_content_type, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 514: // future $response:body
1.269 paf 515: body_string=new String(exception_cstr);
1.258 paf 516: }
1.41 paf 517:
1.258 paf 518: VString body_vstring(*body_string);
1.303 misha 519: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 520:
1.273 paf 521: // conditionally log it
522: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
523: if(!vhandled || !vhandled->as_bool()) {
524: SAPI::log(sapi_info, "%s", exception_cstr);
525: }
526:
1.258 paf 527: // ERROR. write it out
528: output_result(body_file, header_only, false);
1.287 misha 529:
1.273 paf 530: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 531: Request::Exception_details details=get_details(e);
532: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 533: // unconditionally log the beast
534: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 535:
536: throw Exception(0,
537: 0,
538: "in %s",
539: exception_cstr);
1.268 paf 540: }
1.1 paf 541: }
542: }
543:
1.266 paf 544: uint Request::register_file(String::Body file_spec) {
1.248 paf 545: file_list+=file_spec;
546: return file_list.count()-1;
547: }
548:
1.318 misha 549: void Request::use_file_directly(VStateless_class& aclass,
550: const String& file_spec,
551: bool fail_on_read_problem,
552: bool fail_on_file_absence) {
553:
1.73 paf 554: // cyclic dependence check
1.318 misha 555: if(used_files.get(file_spec))
1.248 paf 556: return;
1.318 misha 557: used_files.put(file_spec, true);
558:
559: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
560: if(!entry_exists(file_spec))
561: return;
562:
563: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
564: use_buf(aclass, source, 0, register_file(file_spec));
565: }
566:
567:
568: void Request::use_file(VStateless_class& aclass,
569: const String& file_name,
570: const String* use_filespec/*absolute*/) {
1.73 paf 571:
1.318 misha 572: const String* filespec=0;
573:
574: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
575: filespec=&absolute(file_name);
576: else if(use_filespec){ // search in current dir first
577: int afterslash=lastposafter(*use_filespec, 0, "/", 1, true);
578: if(afterslash>0)
579: filespec=file_exist(use_filespec->mid(0, afterslash-1), file_name); // found in current dir?
580: }
581:
582: if(!filespec){
583: // prevent multiple scan CLASS_PATH for searching one file
584: if(searched_along_class_path.get(file_name))
585: return;
586: searched_along_class_path.put(file_name, true);
1.308 misha 587: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 588: if(element->is_string()) {
1.318 misha 589: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 590: } else if(Table *table=element->get_table()) {
1.318 misha 591: for(size_t i=table->count(); i--; ) {
1.248 paf 592: const String& path=*(*table->get(i))[0];
1.318 misha 593: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 594: break; // found along class_path
595: }
596: } else
1.286 misha 597: throw Exception(PARSER_RUNTIME,
1.233 paf 598: 0,
599: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 600: if(!filespec)
1.286 misha 601: throw Exception(PARSER_RUNTIME,
1.233 paf 602: &file_name,
603: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 604: } else
1.286 misha 605: throw Exception(PARSER_RUNTIME,
1.153 parser 606: &file_name,
1.203 paf 607: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 608: }
1.230 paf 609:
1.318 misha 610: use_file_directly(aclass, *filespec);
1.16 paf 611: }
612:
1.208 paf 613:
1.248 paf 614: void Request::use_buf(VStateless_class& aclass,
1.318 misha 615: const char* source, const String* main_alias,
616: uint file_no,
617: int line_no_offset) {
1.233 paf 618: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 619: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 620: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 621: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 622:
1.295 misha 623: // compile loaded classes
624: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 625:
1.248 paf 626: VString* vfilespec=
627: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 628:
629: for(size_t i=0; i<cclasses.count(); i++){
630: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 631:
632: // locate and execute possible @conf[] static
1.295 misha 633: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
634: conf_method_name, vfilespec,
635: false/*no string result needed*/);
636: if(executed.method)
637: configure_admin(cclass/*, executed.method->name*/);
638:
639: // locate and execute possible @auto[] static
640: execute_nonvirtual_method(cclass,
641: auto_method_name, vfilespec,
642: false/*no result needed*/);
643: }
1.19 paf 644: }
645:
1.248 paf 646: const String& Request::relative(const char* apath, const String& relative_name) {
647: char *hpath=strdup(apath);
648: String& result=*new String;
649: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 650: result << hpath << "/";
1.248 paf 651: result << relative_name;
652: return result;
1.19 paf 653: }
654:
1.77 paf 655: const String& Request::absolute(const String& relative_name) {
1.217 paf 656: if(relative_name.first_char()=='/') {
1.248 paf 657: String& result=*new String(strdup(request_info.document_root));
1.104 paf 658: result << relative_name;
1.19 paf 659: return result;
660: } else
1.248 paf 661: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 662: #ifdef WIN32
663: || relative_name.pos(":")==1 // DRIVE:
664: || relative_name.starts_with("\\\\") // UNC1
665: || relative_name.starts_with("//") // UNC2
666: #endif
667: )
668: return relative_name;
669: else
1.248 paf 670: return relative(request_info.path_translated, relative_name);
1.1 paf 671: }
1.45 paf 672:
1.267 paf 673: #ifndef DOXYGEN
674: class Add_header_attribute_info
675: {
676: public:
677: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
678: Request& r;
679: bool add_last_modified;
680: };
681: #endif
1.248 paf 682: static void add_header_attribute(
1.290 misha 683: HashStringValue::key_type name,
684: HashStringValue::value_type value,
1.267 paf 685: Add_header_attribute_info* info) {
1.290 misha 686: if(name==BODY_NAME
687: || name==DOWNLOAD_NAME
688: || name==CHARSET_NAME)
1.101 paf 689: return;
1.290 misha 690:
1.316 misha 691: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 692:
1.267 paf 693: SAPI::add_header_attribute(info->r.sapi_info,
1.303 misha 694: aname,
1.316 misha 695: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 696: );
1.267 paf 697:
1.290 misha 698: if(strcasecmp(aname, "last-modified")==0)
1.303 misha 699: info->add_last_modified=false;
1.267 paf 700: }
701:
702: static void output_sole_piece(Request& r,
703: bool header_only,
704: VFile& body_file,
705: Value* body_file_content_type) {
706: // transcode text body when "text/*" or simple result
707: String::C output(body_file.value_ptr(), body_file.value_size());
708: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
709: output=Charset::transcode(output,
710: r.charsets.source(),
711: r.charsets.client());
712:
1.311 misha 713: // prepare header: Content-Length
714: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 715:
716: // send header
717: SAPI::send_header(r.sapi_info);
718:
719: // send body
720: if(!header_only)
721: SAPI::send_body(r.sapi_info, output.str, output.length);
722: }
723:
724: #ifndef DOXYGEN
725: struct Range
726: {
727: size_t start;
728: size_t end;
729: };
730: #endif
1.313 misha 731: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 732: const char *p = s->cstr();
733: if(s->starts_with("bytes="))
734: p += 6;
735: Range r;
736: while(*p){
737: r.start = (size_t)-1;
738: r.end = (size_t)-1;
739: if(*p >= '0' && *p <= '9'){
740: r.start = atol(p);
741: while(*p>='0' && *p<='9') ++p;
742: }
743: if(*p++ != '-') break;
744: if(*p >= '0' && *p <= '9'){
745: r.end = atol(p);
746: while(*p>='0' && *p<='9') ++p;
747: }
748: if(*p == ',') ++p;
749: ar += r;
750: }
1.101 paf 751: }
1.267 paf 752:
753: static void output_pieces(Request& r,
754: bool header_only,
755: const String& filename,
756: size_t content_length,
757: Value& date,
758: bool add_last_modified)
759: {
1.315 misha 760: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 761:
1.267 paf 762: const size_t BUFSIZE = 10*0x400;
763: char buf[BUFSIZE];
764: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
765: size_t offset=0;
766: size_t part_length=content_length;
767: if(range){
768: Array<Range> ar;
769: parse_range(new String(range), ar);
770: size_t count = ar.count();
771: if(count == 1){
772: Range &rg = ar.get_ref(0);
773: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 774: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 775: return;
776: }
777: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
778: rg.start = content_length - rg.end;
779: rg.end = content_length;
780: offset += rg.start;
781: part_length = rg.end-rg.start;
782: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
783: rg.end = content_length-1;
784: offset += rg.start;
785: part_length -= rg.start;
786: }
787: if(part_length == 0){
1.311 misha 788: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 789: return;
790: }
1.311 misha 791: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 792: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 793: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 794: }else if(count != 0){
1.311 misha 795: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 796: return;
797: }
798: }
799:
800:
1.311 misha 801: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 802:
1.314 misha 803: if(add_last_modified)
1.315 misha 804: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 805:
1.267 paf 806: SAPI::send_header(r.sapi_info);
807:
808: const String& filespec=r.absolute(filename);
809:
810: size_t sent = 0;
811: if(!header_only){
812: size_t to_read = 0;
813: size_t size = 0;
814: do{
815: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
816: File_read_result read_result=file_read(r.charsets, filespec,
817: false /*as text*/, 0/*params*/, true/*fail on problem*/,
818: buf, offset, to_read);
819: to_read=read_result.length;
820: if(to_read == 0)
821: break;
822: offset += to_read;
823:
824: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
825: sent += size;
826: if(size != to_read)
827: break;
828: part_length -= to_read;
829: }while(part_length);
830: }
831: }
832:
1.248 paf 833: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 834: // header: cookies
1.248 paf 835: cookie.output_result(sapi_info);
1.51 paf 836:
1.314 misha 837: // _file_ content-type might be specified
1.267 paf 838: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 839:
1.314 misha 840: // Content-Disposition
1.267 paf 841: Value* vfile_name=body_file->fields().get(name_name);
842: if(!vfile_name) {
843: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 844: if(vfile_name) {
845: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 846: if(char *after_slash=rsplit(name_cstr, '\\'))
847: name_cstr=after_slash;
848: if(char *after_slash=rsplit(name_cstr, '/'))
849: name_cstr=after_slash;
850: vfile_name=new VString(*new String(name_cstr));
851: }
1.267 paf 852: }
853: if(vfile_name) {
854: const String& sfile_name=vfile_name->as_string();
855: if(sfile_name!=NONAME_DAT) {
1.283 misha 856: VHash& hash=*new VHash();
857: HashStringValue &h=hash.hash();
1.288 misha 858: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.313 misha 859: h.put(content_disposition_filename_name, vfile_name);
1.283 misha 860:
1.311 misha 861: response.fields().put(content_disposition, &hash);
1.267 paf 862:
863: if(!body_file_content_type)
864: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 865: }
1.267 paf 866: }
867:
1.312 misha 868: // set Content-Type
1.314 misha 869: if(body_file_content_type) {
870: // body file content type
871: response.fields().put(content_type_name, body_file_content_type);
872: } else {
873: // default content type
874: response.fields().put_dont_replace(content_type_name, new VString(*new String(DEFAULT_CONTENT_TYPE)));
875: }
1.312 misha 876:
1.314 misha 877: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 878: Add_header_attribute_info info(*this);
1.281 paf 879: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 880:
1.267 paf 881: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 882: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 883: const String& sresponse_body_file=vresponse_body_file->as_string();
884: size_t content_length=0;
885: time_t atime=0, mtime=0, ctime=0;
886: file_stat(absolute(sresponse_body_file),
887: content_length,
888: atime, mtime, ctime);
889:
890: VDate* vdate=0;
891: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 892: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 893: vdate=static_cast<VDate*>(vdatep);
894: else
1.286 misha 895: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 896: }
897: if(!vdate)
898: vdate=new VDate(mtime);
1.62 paf 899:
1.267 paf 900: output_pieces(*this, header_only,
901: sresponse_body_file,
902: content_length,
903: *vdate,
904: info.add_last_modified);
905: } else {
1.314 misha 906: if(body_file_content_type)
907: if(HashStringValue *hash=body_file_content_type->get_hash())
908: body_file_content_type=hash->get(value_name);
909:
1.267 paf 910: output_sole_piece(*this, header_only,
911: *body_file, body_file_content_type);
912: }
1.50 paf 913: }
1.104 paf 914:
1.248 paf 915: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 916: if(mime_types)
1.248 paf 917: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
918: String sext(++cext);
1.246 paf 919: Table::Action_options options;
1.248 paf 920: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
1.313 misha 921: if(const String* result=mime_types->item(1))
922: return *result;
1.104 paf 923: else
1.286 misha 924: throw Exception(PARSER_RUNTIME,
1.248 paf 925: 0,
1.212 paf 926: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 927: }
1.248 paf 928:
929: return *new String("application/octet-stream");
930: }
931:
1.318 misha 932: const String* Request::get_used_filename(uint file_no){
933: if(file_no < file_list.count())
934: return new String(file_list[file_no], String::L_TAINTED);
935: return 0;
936: }
937:
1.248 paf 938: #ifdef XML
1.280 paf 939: xmlChar* Request::transcode(const String& s) {
1.248 paf 940: return charsets.source().transcode(s);
941: }
942:
1.280 paf 943: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 944: return charsets.source().transcode(s);
945: }
946:
1.280 paf 947: const String& Request::transcode(const xmlChar* s) {
1.248 paf 948: return charsets.source().transcode(s);
1.233 paf 949: }
1.248 paf 950: #endif
951:
952:
953: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
954: Trace result;
955: if(!is_empty()) {
956: result=bottom_value();
957: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 958: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 959: fbottom++;
960: } else if(result.name()==problem_source) // it is that same guy?
961: fbottom++; // throw away that trace
1.279 paf 962: else {
963: // stack top contains not us,
964: // leaving result intact
965: // it would help ^throw
966: }
1.248 paf 967: }
968:
969: return result;
970: }
971:
972: Request::Exception_details Request::get_details(const Exception& e) {
973: const String* problem_source=e.problem_source();
974: Trace trace=exception_trace.extract_origin(problem_source);
975:
976: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
977:
978: // $.type
979: if(const char* type=e.type(true))
980: hash.put(exception_type_part_name, new VString(*new String(type)));
981:
982: // $.source
983: if(problem_source) {
1.306 misha 984: String& source=*new String(*problem_source, String::L_TAINTED);
1.248 paf 985: hash.put(exception_source_part_name, new VString(source));
986: }
987:
988: // $.file lineno colno
989: if(trace) {
990: const Operation::Origin origin=trace.origin();
1.263 paf 991: hash.put(String::Body("file"),
1.248 paf 992: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 993: hash.put(String::Body("lineno"), new VInt(1+origin.line));
994: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 995: }
996:
997: // $.comment
998: if(const char* comment=e.comment(true))
999: hash.put(exception_comment_part_name,
1.302 misha 1000: new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 1001:
1002: // $.handled(0)
1.299 misha 1003: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 1004:
1.248 paf 1005: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 1006: }
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