Annotation of parser3/src/main/pa_request.C, revision 1.355
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.351 moko 4: Copyright (c) 2001-2015 Art. Lebedev Studio (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:
1.69 paf 8: #include "pa_sapi.h"
1.53 paf 9: #include "pa_common.h"
1.1 paf 10: #include "pa_request.h"
1.3 paf 11: #include "pa_wwrapper.h"
12: #include "pa_vclass.h"
1.31 paf 13: #include "pa_globals.h"
1.30 paf 14: #include "pa_vint.h"
1.297 misha 15: #include "pa_vmethod_frame.h"
1.32 paf 16: #include "pa_types.h"
1.248 paf 17: #include "pa_venv.h"
18: #include "pa_vmath.h"
19: #include "pa_vstatus.h"
20: #include "pa_vrequest.h"
1.78 paf 21: #include "pa_vtable.h"
1.90 paf 22: #include "pa_vfile.h"
1.147 parser 23: #include "pa_dictionary.h"
1.208 paf 24: #include "pa_charset.h"
1.186 paf 25: #include "pa_charsets.h"
1.248 paf 26: #include "pa_cache_managers.h"
27: #include "pa_vmail.h"
28: #include "pa_vform.h"
29: #include "pa_vcookie.h"
30: #include "pa_vresponse.h"
31: #include "pa_vmemory.h"
1.253 paf 32: #include "pa_vconsole.h"
1.267 paf 33: #include "pa_vdate.h"
1.159 parser 34:
1.355 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.354 2016/04/06 16:08:20 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 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:
47: // defines for globals
48:
49: #define MAIN_METHOD_NAME "main"
50: #define AUTO_METHOD_NAME "auto"
1.309 misha 51: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 52: #define EXCEPTION_TYPE_PART_NAME "type"
53: #define EXCEPTION_SOURCE_PART_NAME "source"
54: #define EXCEPTION_COMMENT_PART_NAME "comment"
55:
56: // globals
57:
58: const String main_method_name(MAIN_METHOD_NAME);
59: const String auto_method_name(AUTO_METHOD_NAME);
1.309 misha 60: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 61:
1.248 paf 62: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
63: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
64: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
65: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
66:
67: // defines for statics
68:
69: #define CHARSETS_NAME "CHARSETS"
70: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 71: #define STRICT_VARS_NAME "STRICT-VARS"
1.248 paf 72: #define CONF_METHOD_NAME "conf"
73: #define POST_PROCESS_METHOD_NAME "postprocess"
74: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 75: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 76:
1.344 moko 77: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
78: #define BODY_NAME_UPPER "BODY"
79:
1.248 paf 80: // statics
81:
82: static const String charsets_name(CHARSETS_NAME);
83: static const String main_class_name(MAIN_CLASS_NAME);
84: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 85: static const String strict_vars_name(STRICT_VARS_NAME);
1.248 paf 86: static const String conf_method_name(CONF_METHOD_NAME);
87: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
88: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 89: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 90:
1.344 moko 91: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
92: static const String body_name_upper(BODY_NAME_UPPER);
93:
94: // more static
95:
96: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
97: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
98: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
99: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
100:
1.248 paf 101: // defines
1.82 paf 102:
1.344 moko 103: #define CHARSET_NAME_UPPER "CHARSET"
104: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
105:
1.233 paf 106: // op.C
1.248 paf 107: VStateless_class& VClassMAIN_create();
1.123 paf 108:
1.157 parser 109: //
1.248 paf 110: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 111: String::Language adefault_lang):
1.248 paf 112: // private
113: anti_endless_execute_recoursion(0),
114:
115: // public
1.335 moko 116: allow_class_replace(false),
1.248 paf 117: method_frame(0),
118: rcontext(0),
119: wcontext(0),
120: flang(adefault_lang),
1.191 paf 121: fconnection(0),
1.307 misha 122: finterrupted(false),
123: fskip(SKIP_NOTHING),
124: fin_cycle(0),
1.248 paf 125:
126: // public
1.257 paf 127: request_info(arequest_info),
1.248 paf 128: sapi_info(asapi_info),
129: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
130:
131: main_class(VClassMAIN_create()),
1.260 paf 132: form(*new VForm(charsets, arequest_info)),
1.248 paf 133: mail(*new VMail),
134: response(*new VResponse(arequest_info, charsets)),
1.298 misha 135: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 136: console(*new VConsole),
1.248 paf 137:
138: // private
139: configure_admin_done(false),
140:
141: // private defaults
142: fdefault_lang(adefault_lang),
143: // private mime types
144: mime_types(0)
1.157 parser 145: {
1.261 paf 146: pa_register_thread_request(*this);
147:
1.248 paf 148: // file_no=0 => unknown
1.347 moko 149: file_list+="UNKNOWN";
150: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 151:
1.178 paf 152: // maybe expire old caches
1.264 paf 153: cache_managers->maybe_expire();
1.178 paf 154:
1.157 parser 155: /// directly used
1.233 paf 156: // MAIN class, operators
1.353 moko 157: put_class(&main_class);
1.157 parser 158: // classes:
159: // table, file, random, mail, image, ...
1.248 paf 160: methoded_array().register_directly_used(*this);
1.157 parser 161:
162: /// methodless
1.354 moko 163:
1.157 parser 164: // env class
1.353 moko 165: put_class(new VEnv(asapi_info));
1.175 paf 166: // status class
1.353 moko 167: put_class(new VStatus());
1.157 parser 168: // request class
1.353 moko 169: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 170: // cookie class
1.353 moko 171: put_class(&cookie);
1.253 paf 172: // console class
1.353 moko 173: put_class(&console);
1.354 moko 174:
1.157 parser 175: /// methoded
1.354 moko 176:
1.157 parser 177: // response class
1.353 moko 178: put_class(&response);
1.157 parser 179: // form class
1.353 moko 180: put_class(&form);
1.213 paf 181: // mail class
1.353 moko 182: put_class(&mail);
1.157 parser 183: // math class
1.353 moko 184: put_class(new VMath);
1.248 paf 185: // memory class
1.353 moko 186: put_class(new VMemory);
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);
1.341 moko 194: pa_free((void *)xml_generic_errors);
1.192 paf 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:
1.355 ! moko 201: VStateless_class* Request::get_class(const String& name){
! 202: VStateless_class* result=classes().get(name);
1.313 misha 203: if(!result)
1.309 misha 204: if(Value* value=main_class.get_element(autouse_method_name))
205: if(Junction* junction=value->get_junction())
206: if(const Method *method=junction->method) {
207: Value *vname=new VString(name);
1.322 moko 208: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 209:
210: frame.store_params(&vname, 1);
211: // we don't need the result
1.323 moko 212: execute_method(frame);
1.309 misha 213:
214: result=classes().get(name);
215: }
1.313 misha 216:
1.309 misha 217: return result;
218: }
219:
1.248 paf 220: static void load_charset(HashStringValue::key_type akey,
221: HashStringValue::value_type avalue,
222: Request_charsets* charsets) {
1.249 paf 223: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 224: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 225: }
1.248 paf 226: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 227: if(configure_admin_done)
1.286 misha 228: throw Exception(PARSER_RUNTIME,
1.248 paf 229: 0,
1.208 paf 230: "parser already configured");
231: configure_admin_done=true;
232:
1.227 paf 233: // charsets must only be specified in method_frame config
1.208 paf 234: // so that users would not interfere
235:
236: /* $MAIN:CHARSETS[
237: $.charsetname1[/full/path/to/charset/file.cfg]
238: ...
239: ]
240: */
1.308 misha 241: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 242: if(!vcharsets->is_string()) {
1.248 paf 243: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 244: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 245: else
1.286 misha 246: throw Exception(PARSER_RUNTIME,
1.240 paf 247: 0,
248: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 249: }
1.208 paf 250: }
251:
1.330 moko 252: #ifdef STRICT_VARS
1.332 moko 253: VVoid::strict_vars=false;
1.330 moko 254: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
255: if(strict_vars->is_bool())
256: VVoid::strict_vars=strict_vars->as_bool();
257: else
258: throw Exception(PARSER_RUNTIME,
259: 0,
260: "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
261: }
262: #endif
263:
1.227 paf 264: // configure method_frame options
1.208 paf 265: // until someone with less privileges have overriden them
1.248 paf 266: methoded_array().configure_admin(*this);
1.208 paf 267: }
1.150 parser 268:
1.349 moko 269: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
270:
1.269 paf 271: #define PA_URI_FORMAT "%s: "
1.349 moko 272: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
273:
1.269 paf 274: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
275: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 276:
277: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
278: #define PA_SOURCE_VALUE details.problem_source->cstr(),
279:
280: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
281: snprintf(result, MAX_STRING, \
282: PA_URI_FORMAT \
283: f1 f2 \
284: PA_COMMENT_TYPE_FORMAT, \
285: request_info.uri, \
286: v1 v2 \
287: e.comment(), e.type() \
288: );
289:
1.269 paf 290: char* result=new(PointerFreeGC) char[MAX_STRING];
291:
292: if(details.problem_source) { // do we know the guy?
1.349 moko 293: if(details.origin.file_no) // do whe know where he came from?
294: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
295: else
296: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
297: } else {
298: if(details.origin.file_no) // do whe know where he came from?
299: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
300: else
301: EXCEPTION_CSTR(,,,)
302: }
1.269 paf 303:
304: return result;
305: }
1.272 paf 306:
307: void Request::configure() {
308: // configure admin options if not configured yet
309: if(!configure_admin_done)
310: configure_admin(main_class);
311:
312: // configure not-admin=user options
313: methoded_array().configure_user(*this);
314:
315: // $MAIN:MIME-TYPES
1.308 misha 316: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 317: if(Table *table=element->get_table())
318: mime_types=table;
319: }
1.64 paf 320: /**
321: load MAIN class, execute @main.
322: MAIN class consists of all the auto.p files we'd manage to find
323: plus
324: the file user requested us to process
325: all located classes become children of one another,
326: composing class we name 'MAIN'
1.180 paf 327:
328: @test log stack trace
329:
1.64 paf 330: */
1.248 paf 331: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 332: try {
1.211 paf 333: // loading config
334: if(config_filespec) {
1.248 paf 335: const String& filespec=*new String(config_filespec);
1.318 misha 336: use_file_directly(main_class,
337: filespec,
1.248 paf 338: config_fail_on_read_problem,
339: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 340: }
1.8 paf 341:
1.338 moko 342: // filling mail received
343: mail.fill_received(*this);
344:
1.72 paf 345: // loading auto.p files from document_root/..
346: // to the one beside requested file.
347: // all assigned bases from upper dir
348: {
1.248 paf 349: const char* after=request_info.path_translated;
350: size_t drlen=strlen(request_info.document_root);
351: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 352: after+=drlen;
353: if(after[-1]=='/')
354: --after;
355: }
356:
1.248 paf 357: while(const char* before=strchr(after, '/')) {
358: String& sfile_spec=*new String;
359: if(after!=request_info.path_translated) {
360: sfile_spec.append_strdup(
361: request_info.path_translated, before-request_info.path_translated,
362: String::L_CLEAN);
1.152 parser 363: sfile_spec << "/" AUTO_FILE_NAME;
364:
1.318 misha 365: use_file_directly(main_class,
1.248 paf 366: sfile_spec,
367: true /*fail on read problem*/,
368: false /*but ignore absence, sole user*/);
1.115 paf 369: }
1.317 misha 370: for(after=before+1;*after=='/';after++);
1.72 paf 371: }
372: }
1.34 paf 373:
1.272 paf 374: try {
375: // compile requested file
376: String& spath_translated=*new String;
377: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 378: use_file_directly(main_class, spath_translated);
1.272 paf 379:
380: configure();
381: } catch(...) {
382: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
383: rethrow;
384: }
1.25 paf 385:
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,
1.340 moko 391: "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 392:
1.250 paf 393: // extract response body
1.344 moko 394: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 395: bool as_attachment=body_value!=0;
396: if(!body_value)
1.344 moko 397: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 398: if(!body_value)
399: body_value=new VString(*body_string); // just result of ^main[]
400:
1.119 paf 401: // @postprocess
1.308 misha 402: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 403: if(Junction* junction=value->get_junction())
1.91 paf 404: if(const Method *method=junction->method) {
405: // preparing to pass parameters to
1.119 paf 406: // @postprocess[data]
1.322 moko 407: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 408:
1.300 misha 409: frame.store_params(&body_value, 1);
1.323 moko 410: execute_method(frame);
411:
412: body_value=&frame.result().as_value();
1.91 paf 413: }
1.90 paf 414:
1.303 misha 415: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 416:
1.45 paf 417: // OK. write out the result
1.248 paf 418: output_result(body_file, header_only, as_attachment);
1.183 paf 419:
1.171 parser 420: } catch(const Exception& e) { // request handling problem
1.268 paf 421: try {
1.76 paf 422: // we're returning not result, but error explanation
1.269 paf 423:
424: Request::Exception_details details=get_details(e);
425: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 426:
427: // reset language to default
428: flang=fdefault_lang;
429:
430: // reset response
431: response.fields().clear();
432:
433: // this is what we'd return in $response:body
434: const String* body_string=0;
435:
436: // maybe we'd be lucky enough as to report an error
437: // in a gracefull way...
1.308 misha 438: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 439: if(Junction* junction=value->get_junction()) {
440: if(const Method *method=junction->method) {
1.287 misha 441: // preparing to pass parameters to
442: // @unhandled_exception[exception;stack]
443:
444: // $stack[^table::create{name file lineno colno}]
445: Table::columns_type stack_trace_columns(new ArrayString);
446: *stack_trace_columns+=new String("name");
447: *stack_trace_columns+=new String("file");
448: *stack_trace_columns+=new String("lineno");
449: *stack_trace_columns+=new String("colno");
450: Table& stack_trace=*new Table(stack_trace_columns);
451: if(!exception_trace.is_empty()/*signed!*/)
452: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
453: Trace trace=exception_trace.get(i);
454: Table::element_type row(new ArrayString);
455:
456: *row+=trace.name(); // name column
457: Operation::Origin origin=trace.origin();
458: if(origin.file_no) {
459: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
460: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
461: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
462: }
463: stack_trace+=row;
464: }
465:
1.323 moko 466: // future $response:body=
467: // execute ^unhandled_exception[exception;stack]
468: 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)
469:
470: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 471: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 472:
1.300 misha 473: frame.store_params(params, 2);
1.323 moko 474: execute_method(frame);
1.287 misha 475:
1.323 moko 476: body_string=&frame.result().as_string();
1.233 paf 477: }
1.30 paf 478: }
1.258 paf 479: }
480:
481: if(!body_string) { // couldn't report an error beautifully?
482: // doing that ugly
483:
484: // future $response:content-type
1.344 moko 485: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 486: // future $response:body
1.269 paf 487: body_string=new String(exception_cstr);
1.258 paf 488: }
1.41 paf 489:
1.258 paf 490: VString body_vstring(*body_string);
1.303 misha 491: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 492:
1.273 paf 493: // conditionally log it
494: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
495: if(!vhandled || !vhandled->as_bool()) {
496: SAPI::log(sapi_info, "%s", exception_cstr);
497: }
498:
1.258 paf 499: // ERROR. write it out
500: output_result(body_file, header_only, false);
1.287 misha 501:
1.273 paf 502: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 503: Request::Exception_details details=get_details(e);
504: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 505: // unconditionally log the beast
506: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 507:
508: throw Exception(0,
509: 0,
510: "in %s",
511: exception_cstr);
1.268 paf 512: }
1.1 paf 513: }
514: }
515:
1.266 paf 516: uint Request::register_file(String::Body file_spec) {
1.248 paf 517: file_list+=file_spec;
518: return file_list.count()-1;
519: }
520:
1.318 misha 521: void Request::use_file_directly(VStateless_class& aclass,
522: const String& file_spec,
523: bool fail_on_read_problem,
524: bool fail_on_file_absence) {
525:
1.73 paf 526: // cyclic dependence check
1.318 misha 527: if(used_files.get(file_spec))
1.248 paf 528: return;
1.318 misha 529: used_files.put(file_spec, true);
530:
531: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
532: if(!entry_exists(file_spec))
533: return;
534:
535: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
536: use_buf(aclass, source, 0, register_file(file_spec));
537: }
538:
539:
1.349 moko 540: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/) {
1.73 paf 541:
1.326 misha 542: if(file_name.is_empty())
543: throw Exception(PARSER_RUNTIME,
544: 0,
545: "usage failed - no filename was specified");
546:
1.318 misha 547: const String* filespec=0;
548:
549: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
550: filespec=&absolute(file_name);
551: else if(use_filespec){ // search in current dir first
1.331 misha 552: size_t last_slash_pos=use_filespec->strrpbrk("/");
553: if(last_slash_pos!=STRING_NOT_FOUND)
554: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 555: }
556:
557: if(!filespec){
558: // prevent multiple scan CLASS_PATH for searching one file
559: if(searched_along_class_path.get(file_name))
560: return;
561: searched_along_class_path.put(file_name, true);
1.308 misha 562: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 563: if(element->is_string()) {
1.318 misha 564: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 565: } else if(Table *table=element->get_table()) {
1.318 misha 566: for(size_t i=table->count(); i--; ) {
1.248 paf 567: const String& path=*(*table->get(i))[0];
1.318 misha 568: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 569: break; // found along class_path
570: }
571: } else
1.286 misha 572: throw Exception(PARSER_RUNTIME,
1.233 paf 573: 0,
574: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 575: if(!filespec)
1.286 misha 576: throw Exception(PARSER_RUNTIME,
1.233 paf 577: &file_name,
578: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 579: } else
1.286 misha 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:
1.318 misha 585: use_file_directly(aclass, *filespec);
1.16 paf 586: }
587:
1.349 moko 588: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
589: static String use("USE");
590: try {
591: use_file(aclass, file_name, use_filespec);
592: } catch (...) {
593: exception_trace.push(Trace(&use, origin));
594: rethrow;
595: }
596: }
1.208 paf 597:
1.248 paf 598: void Request::use_buf(VStateless_class& aclass,
1.318 misha 599: const char* source, const String* main_alias,
600: uint file_no,
601: int line_no_offset) {
1.233 paf 602: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 603: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 604: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 605: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 606:
1.295 misha 607: // compile loaded classes
608: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 609:
1.248 paf 610: VString* vfilespec=
611: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 612:
613: for(size_t i=0; i<cclasses.count(); i++){
614: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 615:
616: // locate and execute possible @conf[] static
1.295 misha 617: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
618: conf_method_name, vfilespec,
619: false/*no string result needed*/);
620: if(executed.method)
621: configure_admin(cclass/*, executed.method->name*/);
622:
623: // locate and execute possible @auto[] static
624: execute_nonvirtual_method(cclass,
625: auto_method_name, vfilespec,
626: false/*no result needed*/);
1.336 moko 627:
628: cclass.enable_default_setter();
1.295 misha 629: }
1.19 paf 630: }
631:
1.248 paf 632: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 633: char *hpath=pa_strdup(apath);
1.248 paf 634: String& result=*new String;
635: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 636: result << hpath << "/";
1.248 paf 637: result << relative_name;
638: return result;
1.19 paf 639: }
640:
1.77 paf 641: const String& Request::absolute(const String& relative_name) {
1.217 paf 642: if(relative_name.first_char()=='/') {
1.341 moko 643: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 644: result << relative_name;
1.19 paf 645: return result;
646: } else
1.248 paf 647: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 648: #ifdef WIN32
649: || relative_name.pos(":")==1 // DRIVE:
650: || relative_name.starts_with("\\\\") // UNC1
651: || relative_name.starts_with("//") // UNC2
652: #endif
653: )
654: return relative_name;
655: else
1.248 paf 656: return relative(request_info.path_translated, relative_name);
1.1 paf 657: }
1.45 paf 658:
1.267 paf 659: #ifndef DOXYGEN
660: class Add_header_attribute_info
661: {
662: public:
663: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
664: Request& r;
665: bool add_last_modified;
666: };
667: #endif
1.344 moko 668: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
669: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 670: return;
1.290 misha 671:
1.345 moko 672: if(name==LAST_MODIFIED_NAME_UPPER)
673: info->add_last_modified=false;
674:
1.316 misha 675: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 676:
1.267 paf 677: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 678: aname,
1.316 misha 679: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 680: );
1.267 paf 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:
1.311 misha 694: // prepare header: Content-Length
695: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 696:
697: // send header
698: SAPI::send_header(r.sapi_info);
699:
700: // send body
701: if(!header_only)
702: SAPI::send_body(r.sapi_info, output.str, output.length);
703: }
704:
705: #ifndef DOXYGEN
706: struct Range
707: {
708: size_t start;
709: size_t end;
710: };
711: #endif
1.313 misha 712: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 713: const char *p = s->cstr();
714: if(s->starts_with("bytes="))
715: p += 6;
716: Range r;
717: while(*p){
718: r.start = (size_t)-1;
719: r.end = (size_t)-1;
720: if(*p >= '0' && *p <= '9'){
721: r.start = atol(p);
722: while(*p>='0' && *p<='9') ++p;
723: }
724: if(*p++ != '-') break;
725: if(*p >= '0' && *p <= '9'){
726: r.end = atol(p);
727: while(*p>='0' && *p<='9') ++p;
728: }
729: if(*p == ',') ++p;
730: ar += r;
731: }
1.101 paf 732: }
1.267 paf 733:
734: static void output_pieces(Request& r,
735: bool header_only,
736: const String& filename,
737: size_t content_length,
738: Value& date,
739: bool add_last_modified)
740: {
1.315 misha 741: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 742:
1.267 paf 743: const size_t BUFSIZE = 10*0x400;
744: char buf[BUFSIZE];
1.339 moko 745: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 746: size_t offset=0;
747: size_t part_length=content_length;
748: if(range){
749: Array<Range> ar;
750: parse_range(new String(range), ar);
751: size_t count = ar.count();
752: if(count == 1){
753: Range &rg = ar.get_ref(0);
754: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 755: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 756: return;
757: }
758: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
759: rg.start = content_length - rg.end;
760: rg.end = content_length;
761: offset += rg.start;
762: part_length = rg.end-rg.start;
763: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
764: rg.end = content_length-1;
765: offset += rg.start;
766: part_length -= rg.start;
767: }
768: if(part_length == 0){
1.311 misha 769: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 770: return;
771: }
1.311 misha 772: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 773: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 774: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 775: }else if(count != 0){
1.311 misha 776: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 777: return;
778: }
779: }
780:
781:
1.311 misha 782: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 783:
1.314 misha 784: if(add_last_modified)
1.315 misha 785: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 786:
1.267 paf 787: SAPI::send_header(r.sapi_info);
788:
789: const String& filespec=r.absolute(filename);
790:
791: size_t sent = 0;
792: if(!header_only){
793: size_t to_read = 0;
794: size_t size = 0;
795: do{
796: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
797: File_read_result read_result=file_read(r.charsets, filespec,
798: false /*as text*/, 0/*params*/, true/*fail on problem*/,
799: buf, offset, to_read);
800: to_read=read_result.length;
801: if(to_read == 0)
802: break;
803: offset += to_read;
804:
805: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
806: sent += size;
807: if(size != to_read)
808: break;
809: part_length -= to_read;
810: }while(part_length);
811: }
812: }
813:
1.248 paf 814: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 815: // header: cookies
1.248 paf 816: cookie.output_result(sapi_info);
1.51 paf 817:
1.314 misha 818: // _file_ content-type might be specified
1.267 paf 819: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 820:
1.314 misha 821: // Content-Disposition
1.267 paf 822: Value* vfile_name=body_file->fields().get(name_name);
823: if(!vfile_name) {
824: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 825: if(vfile_name) {
826: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 827: if(char *after_slash=rsplit(name_cstr, '\\'))
828: name_cstr=after_slash;
829: if(char *after_slash=rsplit(name_cstr, '/'))
830: name_cstr=after_slash;
1.327 misha 831: vfile_name=new VString(*new String(name_cstr));
1.274 paf 832: }
1.267 paf 833: }
834: if(vfile_name) {
835: const String& sfile_name=vfile_name->as_string();
836: if(sfile_name!=NONAME_DAT) {
1.283 misha 837: VHash& hash=*new VHash();
838: HashStringValue &h=hash.hash();
1.288 misha 839: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 840: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 841:
1.344 moko 842: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 843:
844: if(!body_file_content_type)
845: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 846: }
1.267 paf 847: }
848:
1.312 misha 849: // set Content-Type
1.314 misha 850: if(body_file_content_type) {
851: // body file content type
1.344 moko 852: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 853: } else {
854: // default content type
1.344 moko 855: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 856: }
1.312 misha 857:
1.314 misha 858: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 859: Add_header_attribute_info info(*this);
1.281 paf 860: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 861:
1.267 paf 862: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 863: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 864: const String& sresponse_body_file=vresponse_body_file->as_string();
865: size_t content_length=0;
866: time_t atime=0, mtime=0, ctime=0;
867: file_stat(absolute(sresponse_body_file),
868: content_length,
869: atime, mtime, ctime);
870:
871: VDate* vdate=0;
872: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 873: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 874: vdate=static_cast<VDate*>(vdatep);
875: else
1.286 misha 876: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 877: }
878: if(!vdate)
1.346 moko 879: vdate=new VDate((pa_time_t)mtime);
1.62 paf 880:
1.267 paf 881: output_pieces(*this, header_only,
882: sresponse_body_file,
883: content_length,
884: *vdate,
885: info.add_last_modified);
886: } else {
1.314 misha 887: if(body_file_content_type)
888: if(HashStringValue *hash=body_file_content_type->get_hash())
889: body_file_content_type=hash->get(value_name);
890:
1.267 paf 891: output_sole_piece(*this, header_only,
892: *body_file, body_file_content_type);
893: }
1.50 paf 894: }
1.104 paf 895:
1.328 misha 896: const String& Request::mime_type_of(const String* file_name) {
897: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
898: }
899:
1.248 paf 900: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 901: if(mime_types)
1.248 paf 902: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
903: String sext(++cext);
1.246 paf 904: Table::Action_options options;
1.342 moko 905: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 906: if(const String* result=mime_types->item(1))
907: return *result;
1.104 paf 908: else
1.286 misha 909: throw Exception(PARSER_RUNTIME,
1.248 paf 910: 0,
1.212 paf 911: MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 912: }
1.104 paf 913: }
1.248 paf 914:
915: return *new String("application/octet-stream");
916: }
917:
1.318 misha 918: const String* Request::get_used_filename(uint file_no){
919: if(file_no < file_list.count())
920: return new String(file_list[file_no], String::L_TAINTED);
921: return 0;
922: }
923:
1.248 paf 924: #ifdef XML
1.280 paf 925: xmlChar* Request::transcode(const String& s) {
1.248 paf 926: return charsets.source().transcode(s);
927: }
928:
1.280 paf 929: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 930: return charsets.source().transcode(s);
931: }
932:
1.280 paf 933: const String& Request::transcode(const xmlChar* s) {
1.248 paf 934: return charsets.source().transcode(s);
1.233 paf 935: }
1.248 paf 936: #endif
937:
1.349 moko 938: Request::Exception_details Request::get_details(const Exception& e) {
939: const String* problem_source=e.problem_source();
940: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
941: Operation::Origin origin={0, 0, 0};
1.248 paf 942:
1.349 moko 943: if(!exception_trace.is_empty()) {
944: Trace bottom=exception_trace.bottom_value();
1.350 moko 945: origin=bottom.origin();
946: if(!problem_source) { // we don't know who trigged the bug
947: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
948: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
949: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 950: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
951: } else {
952: // stack top contains not us, leaving intact to help ^throw
1.279 paf 953: }
1.248 paf 954: }
955:
956: // $.type
957: if(const char* type=e.type(true))
958: hash.put(exception_type_part_name, new VString(*new String(type)));
959:
960: // $.source
1.349 moko 961: if(problem_source)
962: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 963:
1.349 moko 964: // $.file $.lineno $.colno
965: if(origin.file_no){
1.347 moko 966: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
967: hash.put("lineno", new VInt(1+origin.line));
968: hash.put("colno", new VInt(1+origin.col));
1.248 paf 969: }
970:
971: // $.comment
972: if(const char* comment=e.comment(true))
1.349 moko 973: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 974:
975: // $.handled(0)
1.299 misha 976: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 977:
1.349 moko 978: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 979: }
1.337 moko 980:
981: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
982: frequest(arequest),
983: fwhere(awhere),
984: fname(aname),
985: saved(awhere.get_element(aname))
986: {
987: Junction* junction;
988: if(saved && (junction=saved->get_junction()) && junction->is_getter)
989: saved=0;
990: frequest.put_element(fwhere, aname, awhat);
991: }
992:
993: Temp_value_element::~Temp_value_element() {
994: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
995: }
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