Annotation of parser3/src/main/pa_request.C, revision 1.448
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.439 moko 4: Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)
1.418 moko 5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <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"
1.372 moko 10: #include "pa_os.h"
1.1 paf 11: #include "pa_request.h"
1.3 paf 12: #include "pa_wwrapper.h"
13: #include "pa_vclass.h"
1.31 paf 14: #include "pa_globals.h"
1.30 paf 15: #include "pa_vint.h"
1.297 misha 16: #include "pa_vmethod_frame.h"
1.32 paf 17: #include "pa_types.h"
1.248 paf 18: #include "pa_venv.h"
19: #include "pa_vmath.h"
20: #include "pa_vstatus.h"
21: #include "pa_vrequest.h"
1.78 paf 22: #include "pa_vtable.h"
1.90 paf 23: #include "pa_vfile.h"
1.147 parser 24: #include "pa_dictionary.h"
1.208 paf 25: #include "pa_charset.h"
1.186 paf 26: #include "pa_charsets.h"
1.248 paf 27: #include "pa_cache_managers.h"
1.402 moko 28: #include "pa_http.h"
1.248 paf 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"
1.424 moko 36: #include "pa_varray.h"
1.159 parser 37:
1.448 ! moko 38: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.447 2026/09/27 17:13:40 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 39:
1.248 paf 40: // consts
41:
1.269 paf 42: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 43:
1.82 paf 44: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 45: const char* DEFAULT_CONTENT_TYPE="text/html";
46:
1.446 moko 47: const int LOOP_LIMIT=100000;
48: const int ARRAY_LIMIT=1000000;
49: const int EXECUTE_RECURSION_LIMIT=1000;
50: const int EXECUTE_RECURSION_RESERVE=100;
51: const int HTTPD_TIMEOUT=4;
1.369 moko 52: const size_t FILE_SIZE_LIMIT=512*1024*1024;
1.361 moko 53:
1.248 paf 54: // defines for globals
55:
56: #define MAIN_METHOD_NAME "main"
57: #define AUTO_METHOD_NAME "auto"
1.364 moko 58: #define USE_METHOD_NAME "use"
1.309 misha 59: #define AUTOUSE_METHOD_NAME "autouse"
1.364 moko 60:
61: #define ORIGIN_KEY "origin"
62:
1.248 paf 63: // globals
64:
65: const String main_method_name(MAIN_METHOD_NAME);
66: const String auto_method_name(AUTO_METHOD_NAME);
1.364 moko 67: static const String use_method_name(USE_METHOD_NAME);
68: static const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 69:
1.364 moko 70: static const String origin_key(ORIGIN_KEY);
71:
1.369 moko 72: int pa_loop_limit=LOOP_LIMIT;
1.425 moko 73: int pa_array_limit=ARRAY_LIMIT;
1.427 moko 74: int pa_execute_recursion_limit=EXECUTE_RECURSION_LIMIT;
1.390 moko 75: int pa_httpd_timeout=HTTPD_TIMEOUT;
1.369 moko 76: size_t pa_file_size_limit=FILE_SIZE_LIMIT;
1.361 moko 77:
1.248 paf 78: // defines for statics
79:
80: #define MIME_TYPES_NAME "MIME-TYPES"
81: #define CLASS_PATH_NAME "CLASS_PATH"
82:
1.344 moko 83: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
84: #define BODY_NAME_UPPER "BODY"
85:
1.248 paf 86: // statics
87:
88: static const String main_class_name(MAIN_CLASS_NAME);
89: static const String mime_types_name(MIME_TYPES_NAME);
1.395 moko 90: static const String class_path_name(CLASS_PATH_NAME);
1.361 moko 91:
1.395 moko 92: static const String charsets_name("CHARSETS");
93: static const String strict_vars_name("STRICT-VARS");
94: static const String prototype_name("OBJECT-PROTOTYPE");
1.415 moko 95: static const String getter_protected_name("CLASS-GETTER-PROTECTED");
96: static const String locals_name("LOCALS");
1.395 moko 97: static const String limits_name("LIMITS");
98: static const String loop_limit_name("max_loop");
1.425 moko 99: static const String array_limit_name("max_array_size");
1.427 moko 100: static const String recursion_limit_name("max_recursion");
1.395 moko 101: static const String file_size_limit_name("max_file_size");
102: static const String lock_wait_timeout_name("lock_wait_timeout");
103: static const String httpd_name("HTTPD");
104: static const String httpd_timeout_name("timeout");
1.402 moko 105: static const String httpd_mode_name("mode");
1.395 moko 106:
107: static const String conf_method_name("conf");
108: static const String post_process_method_name("postprocess");
109: static const String response_body_file_name("file");
1.248 paf 110:
1.344 moko 111: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
112: static const String body_name_upper(BODY_NAME_UPPER);
113:
114: // more static
115:
116: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
117: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
1.392 moko 118: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.344 moko 119: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
120:
1.420 moko 121: const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME);
122: const String content_disposition_filename_name_asterisk("filename*");
123:
1.248 paf 124: // defines
1.82 paf 125:
1.344 moko 126: #define CHARSET_NAME_UPPER "CHARSET"
127: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
128:
1.233 paf 129: // op.C
1.248 paf 130: VStateless_class& VClassMAIN_create();
1.123 paf 131:
1.157 parser 132: //
1.445 moko 133: void Request::recursion_limit_reached() {
134: if(execute_recursion_limit>pa_execute_recursion_limit)
135: throw Recursion_limit_exception();
136:
137: execute_recursion_limit+=EXECUTE_RECURSION_RESERVE;
138: throw Exception(PARSER_RUNTIME, 0, "call canceled - endless recursion detected");
139: }
140:
1.408 moko 141: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info, String::Language adefault_lang):
1.248 paf 142: // private
1.427 moko 143: anti_endless_execute_recursion(0),
1.445 moko 144: execute_recursion_limit(pa_execute_recursion_limit),
1.248 paf 145:
146: // public
1.335 moko 147: allow_class_replace(false),
1.248 paf 148: method_frame(0),
149: rcontext(0),
150: wcontext(0),
151: flang(adefault_lang),
1.191 paf 152: fconnection(0),
1.371 moko 153: fin_cycle(0),
1.307 misha 154: fskip(SKIP_NOTHING),
1.248 paf 155:
156: // public
1.257 paf 157: request_info(arequest_info),
1.248 paf 158: sapi_info(asapi_info),
1.359 moko 159: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 160:
161: main_class(VClassMAIN_create()),
1.260 paf 162: form(*new VForm(charsets, arequest_info)),
1.248 paf 163: mail(*new VMail),
164: response(*new VResponse(arequest_info, charsets)),
1.298 misha 165: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 166: console(*new VConsole),
1.248 paf 167:
168: // private
169: configure_admin_done(false),
170:
171: // private defaults
172: fdefault_lang(adefault_lang),
173: // private mime types
174: mime_types(0)
1.157 parser 175: {
1.261 paf 176: pa_register_thread_request(*this);
177:
1.248 paf 178: // file_no=0 => unknown
1.434 moko 179: file_list+=String::Body("UNKNOWN");
180: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 181:
1.178 paf 182: // maybe expire old caches
1.264 paf 183: cache_managers->maybe_expire();
1.178 paf 184:
1.157 parser 185: /// directly used
1.233 paf 186: // MAIN class, operators
1.353 moko 187: put_class(&main_class);
1.157 parser 188: // classes:
189: // table, file, random, mail, image, ...
1.248 paf 190: methoded_array().register_directly_used(*this);
1.157 parser 191:
192: /// methodless
1.354 moko 193:
1.157 parser 194: // env class
1.353 moko 195: put_class(new VEnv(asapi_info));
1.175 paf 196: // status class
1.353 moko 197: put_class(new VStatus());
1.157 parser 198: // request class
1.353 moko 199: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 200: // cookie class
1.353 moko 201: put_class(&cookie);
1.253 paf 202: // console class
1.353 moko 203: put_class(&console);
1.354 moko 204:
1.157 parser 205: /// methoded
1.354 moko 206:
1.157 parser 207: // response class
1.353 moko 208: put_class(&response);
1.157 parser 209: // form class
1.353 moko 210: put_class(&form);
1.213 paf 211: // mail class
1.353 moko 212: put_class(&mail);
1.157 parser 213: // math class
1.353 moko 214: put_class(new VMath);
1.248 paf 215: // memory class
1.353 moko 216: put_class(new VMemory);
1.117 paf 217: }
1.192 paf 218:
219: Request::~Request() {
220: #ifdef XML
221: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 222: if(const char* xml_generic_errors=xmlGenericErrors()) {
223: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 224: pa_free((void *)xml_generic_errors);
1.192 paf 225: }
226: #endif
227: }
1.236 paf 228:
1.248 paf 229: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 230:
1.355 moko 231: VStateless_class* Request::get_class(const String& name){
232: VStateless_class* result=classes().get(name);
1.313 misha 233: if(!result)
1.375 moko 234: if(const Method *method=main_class.get_element_method(autouse_method_name)){
1.364 moko 235: Value *vname=new VString(name);
236: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
237: frame.store_params(&vname, 1);
238: // we don't need the result
239: call(frame);
240: });
241: result=classes().get(name);
242: }
1.309 misha 243: return result;
244: }
245:
1.411 moko 246: VStateless_class& Request::get_class_ref(const String& name){
247: VStateless_class* result=get_class(name);
248: if(!result)
249: throw Exception(PARSER_RUNTIME, &name, "class is undefined");
250: return *result;
251: }
252:
1.424 moko 253: bool Request::add_class(const char* atype, VStateless_class *aclass){
1.436 moko 254: if(!classes().put_dont_replace(String::Body(atype), aclass))
255: return true;
1.437 moko 256: if(!allow_class_replace && strcmp(atype, VARRAY_TYPE))
257: return false;
1.436 moko 258: classes().remove(String::Body(atype));
1.424 moko 259: classes().put(atype, aclass);
260: return true;
261: }
262:
1.356 moko 263: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 264: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 265: }
1.356 moko 266:
1.395 moko 267:
268: #define CONF_OPTION(config, name, code, exception_name) \
269: if(config) \
270: if(Value* option=config->get_element(name)) { \
271: if(option->is_evaluated_expr()) { \
272: code; \
273: } else \
1.415 moko 274: throw Exception(PARSER_RUNTIME, 0, "$MAIN:" exception_name, name.cstr()); \
1.395 moko 275: }
276:
1.248 paf 277: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 278: if(configure_admin_done)
1.356 moko 279: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 280: configure_admin_done=true;
281:
1.227 paf 282: // charsets must only be specified in method_frame config
1.208 paf 283: // so that users would not interfere
284:
285: /* $MAIN:CHARSETS[
286: $.charsetname1[/full/path/to/charset/file.cfg]
287: ...
288: ]
289: */
1.308 misha 290: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 291: if(!vcharsets->is_string()) {
1.248 paf 292: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 293: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 294: else
1.415 moko 295: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be hash", charsets_name.cstr());
1.342 moko 296: }
1.208 paf 297: }
298:
1.330 moko 299: #ifdef STRICT_VARS
1.332 moko 300: VVoid::strict_vars=false;
1.330 moko 301: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
302: if(strict_vars->is_bool())
303: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 304: else
1.415 moko 305: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", strict_vars_name.cstr());
1.357 moko 306: }
307: #endif
308:
309: #ifdef OBJECT_PROTOTYPE
310: VClass::prototype=true;
311: if(Value* prototype=conf_class.get_element(prototype_name)) {
312: if(prototype->is_bool())
313: VClass::prototype=prototype->as_bool();
314: else
1.415 moko 315: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", prototype_name.cstr());
1.330 moko 316: }
317: #endif
318:
1.415 moko 319: #ifdef CLASS_GETTER_UNPROTECTED
320: VClass::getter_protected=true;
321: if(Value* getter_protected=conf_class.get_element(getter_protected_name)) {
322: if(getter_protected->is_bool())
323: VClass::getter_protected=getter_protected->as_bool();
324: else
325: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", getter_protected_name.cstr());
326: }
327: #endif
328:
329: VStateless_class::gall_vars_local=false;
330: if(Value* locals=conf_class.get_element(locals_name)) {
331: if(locals->is_bool()){
332: VStateless_class::gall_vars_local=locals->as_bool();
333: main_class.set_all_vars_local();
334: } else
335: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", locals_name.cstr());
336: }
337:
1.362 moko 338: Value* limits=conf_class.get_element(limits_name);
339:
1.361 moko 340: pa_loop_limit=LOOP_LIMIT;
1.395 moko 341: CONF_OPTION(limits, loop_limit_name, {
342: pa_loop_limit=option->as_int();
343: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
344: }, "LIMITS.%s must be int");
1.361 moko 345:
1.425 moko 346: pa_array_limit=ARRAY_LIMIT;
347: CONF_OPTION(limits, array_limit_name, {
348: pa_array_limit=option->as_int();
349: if(pa_array_limit==0) pa_array_limit=INT_MAX;
350: }, "LIMITS.%s must be int");
351:
1.427 moko 352: pa_execute_recursion_limit=EXECUTE_RECURSION_LIMIT;
353: CONF_OPTION(limits, recursion_limit_name, {
354: pa_execute_recursion_limit=option->as_int();
1.445 moko 355: if(pa_execute_recursion_limit<=0) pa_execute_recursion_limit=INT_MAX;
356: pa_execute_recursion_limit=min(pa_execute_recursion_limit, INT_MAX-EXECUTE_RECURSION_RESERVE);
1.395 moko 357: }, "LIMITS.%s must be int");
1.445 moko 358: execute_recursion_limit=pa_execute_recursion_limit;
1.390 moko 359:
1.369 moko 360: pa_file_size_limit=FILE_SIZE_LIMIT;
1.395 moko 361: CONF_OPTION(limits, file_size_limit_name, {
362: double limit=option->as_double();
363: if(limit >= (double)SSIZE_MAX)
1.448 ! moko 364: throw Exception(PARSER_RUNTIME, 0, "$MAIN:LIMITS.%s must be less than %s", file_size_limit_name.cstr(), pa_itoa(SSIZE_MAX));
1.395 moko 365: pa_file_size_limit=(size_t)limit;
366: if(pa_file_size_limit==0)
367: pa_file_size_limit=SSIZE_MAX;
368: }, "LIMITS.%s must be number");
1.361 moko 369:
1.372 moko 370: pa_lock_attempts=PA_LOCK_ATTEMPTS;
1.395 moko 371: CONF_OPTION(limits, lock_wait_timeout_name, {
372: double limit=option->as_double();
373: if(limit >= 3600*24)
1.426 moko 374: throw Exception(PARSER_RUNTIME, 0, "$MAIN:LIMITS.%s must be less than %d", lock_wait_timeout_name.cstr(), 3600*24);
1.395 moko 375: pa_lock_attempts=(unsigned int)(limit*2)+1;
376: }, "LIMITS.%s must be number");
377:
378: Value* httpd=conf_class.get_element(httpd_name);
379:
380: pa_httpd_timeout=HTTPD_TIMEOUT;
381: CONF_OPTION(httpd, httpd_timeout_name, {
382: pa_httpd_timeout=option->as_int();
383: if(pa_httpd_timeout==0) pa_httpd_timeout=INT_MAX;
384: }, "HTTPD.%s must be int");
1.372 moko 385:
1.403 moko 386: if(httpd)
387: if(Value* option=httpd->get_element( httpd_mode_name)) {
388: if(option->get_junction())
1.415 moko 389: throw Exception(PARSER_RUNTIME, 0, "$MAIN:HTTPD:mode must be string");
1.403 moko 390: HTTPD_Server::set_mode(option->as_string());
391: }
1.402 moko 392:
1.227 paf 393: // configure method_frame options
1.208 paf 394: // until someone with less privileges have overriden them
1.248 paf 395: methoded_array().configure_admin(*this);
1.208 paf 396: }
1.150 parser 397:
1.442 moko 398: const char* Request::get_exception_cstr(const Exception& e, VException& details) {
1.349 moko 399:
1.269 paf 400: #define PA_URI_FORMAT "%s: "
1.349 moko 401: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
402:
1.269 paf 403: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
404: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 405:
406: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
407: #define PA_SOURCE_VALUE details.problem_source->cstr(),
408:
409: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
410: snprintf(result, MAX_STRING, \
411: PA_URI_FORMAT \
412: f1 f2 \
413: PA_COMMENT_TYPE_FORMAT, \
414: request_info.uri, \
415: v1 v2 \
416: e.comment(), e.type() \
417: );
418:
1.269 paf 419: char* result=new(PointerFreeGC) char[MAX_STRING];
420:
421: if(details.problem_source) { // do we know the guy?
1.349 moko 422: if(details.origin.file_no) // do whe know where he came from?
423: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
424: else
425: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
426: } else {
427: if(details.origin.file_no) // do whe know where he came from?
428: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
429: else
430: EXCEPTION_CSTR(,,,)
431: }
1.269 paf 432:
433: return result;
434: }
1.272 paf 435:
1.444 moko 436: Table &Request::Exception_trace::table(Request &r, const String* problem_source, size_t bottom, size_t top){
1.407 moko 437: // $stack[^table::create{name file lineno colno}]
438: Table::columns_type stack_trace_columns(new ArrayString);
439: *stack_trace_columns+=new String("name");
440: *stack_trace_columns+=new String("file");
441: *stack_trace_columns+=new String("lineno");
442: *stack_trace_columns+=new String("colno");
443: Table& stack_trace=*new Table(stack_trace_columns);
444:
1.444 moko 445: if(bottom<top)
446: for(size_t i=bottom+(get(bottom).name()==problem_source); i<top; i++) {
1.407 moko 447: Trace trace=get(i);
448: Table::element_type row(new ArrayString);
449:
450: *row+=trace.name(); // name column
451: Operation::Origin origin=trace.origin();
452: if(origin.file_no) {
453: *row+=new String(r.file_list[origin.file_no], String::L_TAINTED); // 'file' column
1.422 moko 454: *row+=new String(pa_uitoa(1+origin.line), String::L_CLEAN); // 'lineno' column
455: *row+=new String(pa_uitoa(1+origin.col), String::L_CLEAN); // 'colno' column
1.407 moko 456: }
457: stack_trace+=row;
458: }
459:
460: return stack_trace;
461: }
462:
1.272 paf 463: void Request::configure() {
464: // configure admin options if not configured yet
465: if(!configure_admin_done)
466: configure_admin(main_class);
467:
468: // $MAIN:MIME-TYPES
1.308 misha 469: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 470: if(Table *table=element->get_table())
1.395 moko 471: mime_types=table;
1.272 paf 472: }
1.408 moko 473:
1.64 paf 474: /**
475: load MAIN class, execute @main.
476: MAIN class consists of all the auto.p files we'd manage to find
477: plus
478: the file user requested us to process
479: all located classes become children of one another,
480: composing class we name 'MAIN'
1.180 paf 481:
482: @test log stack trace
483:
1.64 paf 484: */
1.412 moko 485: void Request::core(const char* config_filespec, bool header_only, const String &amain_method_name, const String* amain_class_name) {
1.169 parser 486: try {
1.211 paf 487: // loading config
1.384 moko 488: if(config_filespec)
1.387 moko 489: use_file_directly(*new String(config_filespec));
1.8 paf 490:
1.338 moko 491: // filling mail received
492: mail.fill_received(*this);
493:
1.272 paf 494: try {
495: // compile requested file
1.389 moko 496: if(request_info.path_translated)
497: use_file_directly(*new String(request_info.path_translated, String::L_TAINTED), true, true /* load auto.p files */);
1.272 paf 498: configure();
499: } catch(...) {
500: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
501: rethrow;
502: }
1.25 paf 503:
1.412 moko 504: VStateless_class& main = amain_class_name ? get_class_ref(*amain_class_name) : main_class;
1.25 paf 505: // execute @main[]
1.412 moko 506: const String* body_string=amain_method_name.is_empty() ? &String::Empty : execute_method(main, amain_method_name);
1.41 paf 507: if(!body_string)
1.412 moko 508: throw Exception(PARSER_RUNTIME, &amain_method_name, "method not found in class %s", main.type());
1.79 paf 509:
1.250 paf 510: // extract response body
1.344 moko 511: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.430 moko 512: bool as_attachment=body_value!=0;
1.250 paf 513: if(!body_value)
1.344 moko 514: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 515: if(!body_value)
516: body_value=new VString(*body_string); // just result of ^main[]
517:
1.119 paf 518: // @postprocess
1.383 moko 519: if(const Method *method=main_class.get_method(post_process_method_name)) {
520: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
521: frame.store_params(&body_value, 1);
522: call(frame);
523: body_value=&frame.result();
524: });
525: }
1.90 paf 526:
1.430 moko 527: // can throw exceptions while handling $response:download[]
528: output_result(body_value->as_vfile(flang, &charsets), header_only, as_attachment);
1.171 parser 529: } catch(const Exception& e) { // request handling problem
1.258 paf 530:
1.445 moko 531: // OK, as native execution stack has unwound
532: anti_endless_execute_recursion=0;
533:
1.431 moko 534: // we're returning not result, but error explanation
1.442 moko 535: VException& details=*new VException(*this, e);
1.431 moko 536: const char* exception_cstr=get_exception_cstr(e, details);
537:
538: // reset language to default
539: flang=fdefault_lang;
540: // reset response
541: response.fields().clear();
542: SAPI::clear_headers(sapi_info);
1.407 moko 543:
1.431 moko 544: // this is what we'd return in $response:body
545: const String* body_string=0;
1.407 moko 546:
1.431 moko 547: try {
1.407 moko 548: // maybe we'd be lucky enough as to report an error in a gracefull way...
549: if(const Method *method=main_class.get_method(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
550: // preparing parameters to @unhandled_exception[exception;stack]
551:
1.443 moko 552: Table& stack_trace=exception_trace.table(*this, details.problem_source);
1.444 moko 553: details.expire_trace();
1.407 moko 554: 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)
555:
1.442 moko 556: Value *params[]={&details, new VTable(&stack_trace)};
1.407 moko 557: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
558: frame.store_params(params, 2);
559: call(frame);
560: body_string=&frame.result().as_string();
561: });
562: }
1.383 moko 563:
1.407 moko 564: // conditionally log it
1.442 moko 565: Value* vhandled=details.handled();
1.407 moko 566: if(!vhandled || !vhandled->as_bool()) {
567: SAPI::log(sapi_info, "%s", exception_cstr);
568: }
1.431 moko 569: } catch(const Exception& e) { // exception in @unhandled_exception
1.442 moko 570: VException& details=*new VException(*this, e);
1.431 moko 571: // logging both initial and new exceptions
572: SAPI::log(sapi_info, "%s", exception_cstr);
573: SAPI::log(sapi_info, "Exception in @unhandled_exception at %s", get_exception_cstr(e, details));
574: SAPI::send_error(sapi_info, "Exception in @unhandled_exception, details are available in Parser error log.");
575: return;
576: }
1.383 moko 577:
1.431 moko 578: if(body_string) { // could report an error beautifully?
579: VString body_vstring(*body_string);
580: output_result(body_vstring.as_vfile(flang, &charsets), header_only, false);
581: } else {
582: // doing that ugly
583: SAPI::send_error(sapi_info, exception_cstr, strcmp(e.type(), "file.missing") ? "500" : "404");
1.268 paf 584: }
1.1 paf 585: }
586: }
587:
1.266 paf 588: uint Request::register_file(String::Body file_spec) {
1.248 paf 589: file_list+=file_spec;
590: return file_list.count()-1;
591: }
592:
1.387 moko 593: void Request::use_file_directly(const String& file_spec, bool fail_on_file_absence, bool with_auto_p) {
1.73 paf 594: // cyclic dependence check
1.318 misha 595: if(used_files.get(file_spec))
1.248 paf 596: return;
1.318 misha 597: used_files.put(file_spec, true);
598:
1.385 moko 599: if(!fail_on_file_absence && !entry_exists(file_spec)) // ignore file absence if asked for
600: return;
1.318 misha 601:
1.386 moko 602: if(with_auto_p) {
603: // loading auto.p files from document_root/..
604: // to the one beside requested file.
605: // all assigned bases from upper dir
606: const char* target=file_spec.cstr();
607:
608: // all relative paths are calculated from main document
609: request_info.path_translated=target;
610:
611: const char* after=target;
612: size_t drlen=strlen(request_info.document_root);
613: if(memcmp(after, request_info.document_root, drlen)==0) {
614: after+=drlen;
615: if(after[-1]=='/')
616: --after;
617: }
618:
619: while(const char* before=strchr(after, '/')) {
620: String& sfile_spec=*new String;
621: if(after!=target) {
622: sfile_spec.append_strdup(target, before-target, String::L_CLEAN);
623: sfile_spec << "/" AUTO_FILE_NAME;
624:
1.387 moko 625: use_file_directly(sfile_spec, false /*ignore absence, sole user*/);
1.386 moko 626: }
627: for(after=before+1;*after=='/';after++);
628: }
629: }
630:
1.385 moko 631: if(const char* source=file_read_text(charsets, file_spec, true))
1.387 moko 632: use_buf(main_class, source, 0, register_file(file_spec));
1.318 misha 633: }
634:
635:
1.387 moko 636: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, bool with_auto_p) {
1.326 misha 637: if(file_name.is_empty())
1.366 moko 638: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 639:
1.318 misha 640: const String* filespec=0;
641:
642: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.388 moko 643: filespec=&full_disk_path(file_name);
1.318 misha 644: else if(use_filespec){ // search in current dir first
1.331 misha 645: size_t last_slash_pos=use_filespec->strrpbrk("/");
646: if(last_slash_pos!=STRING_NOT_FOUND)
647: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 648: }
649:
650: if(!filespec){
651: // prevent multiple scan CLASS_PATH for searching one file
652: if(searched_along_class_path.get(file_name))
653: return;
654: searched_along_class_path.put(file_name, true);
1.308 misha 655: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 656: if(element->is_string()) {
1.388 moko 657: filespec=file_exist(full_disk_path(element->as_string()), file_name); // found at class_path?
1.233 paf 658: } else if(Table *table=element->get_table()) {
1.318 misha 659: for(size_t i=table->count(); i--; ) {
1.248 paf 660: const String& path=*(*table->get(i))[0];
1.388 moko 661: if(filespec=file_exist(full_disk_path(path), file_name))
1.233 paf 662: break; // found along class_path
663: }
664: } else
1.366 moko 665: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 666: if(!filespec)
1.415 moko 667: throw Exception(PARSER_RUNTIME, &file_name, "not found along $MAIN:" CLASS_PATH_NAME);
1.318 misha 668: } else
1.415 moko 669: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $MAIN:" CLASS_PATH_NAME " were specified");
1.148 parser 670: }
1.230 paf 671:
1.387 moko 672: use_file_directly(*filespec, true, with_auto_p);
1.16 paf 673: }
674:
1.364 moko 675: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 676: static String use("USE");
677: try {
1.364 moko 678: static VHash* voptions=new VHash();
1.376 moko 679: if(const Method *method=main_class.get_method(use_method_name)){
1.364 moko 680: Value *params[]={new VString(file_name), voptions};
681: voptions->hash().put(origin_key, new VString(*use_filespec));
682:
683: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
684: frame.store_params(params, 2);
685: // we don't need the result
686: call(frame);
687: });
688: }
1.349 moko 689: } catch (...) {
690: exception_trace.push(Trace(&use, origin));
691: rethrow;
692: }
693: }
1.208 paf 694:
1.358 moko 695: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
696: // temporary zero @conf to avoid it second execution
1.248 paf 697: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 698: // temporary zero @auto to avoid it second execution
1.248 paf 699: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 700:
1.295 misha 701: // compile loaded classes
702: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 703:
1.248 paf 704: VString* vfilespec=
1.435 moko 705: new VString(file_list[file_no]);
1.295 misha 706:
707: for(size_t i=0; i<cclasses.count(); i++){
708: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 709:
710: // locate and execute possible @conf[] static
1.382 moko 711: if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
1.295 misha 712: configure_admin(cclass/*, executed.method->name*/);
713:
714: // locate and execute possible @auto[] static
1.419 moko 715: execute_auto_method_if_exists(cclass, auto_method_name, vfilespec);
1.336 moko 716:
717: cclass.enable_default_setter();
1.295 misha 718: }
1.19 paf 719: }
720:
1.248 paf 721: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 722: char *hpath=pa_strdup(apath);
1.248 paf 723: String& result=*new String;
724: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 725: result << hpath << "/";
1.248 paf 726: result << relative_name;
727: return result;
1.19 paf 728: }
729:
1.388 moko 730: const String& Request::full_disk_path(const String& relative_name) {
1.441 moko 731: if(is_os_absolute_path(relative_name))
732: return relative_name;
1.217 paf 733: if(relative_name.first_char()=='/') {
1.341 moko 734: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 735: result << relative_name;
1.19 paf 736: return result;
1.389 moko 737: }
1.441 moko 738: if(relative_name.starts_with("http://") || relative_name.starts_with("parser://"))
1.389 moko 739: return relative_name;
740:
741: return relative(request_info.path_translated ? request_info.path_translated : request_info.document_root, relative_name);
1.1 paf 742: }
1.45 paf 743:
1.267 paf 744: #ifndef DOXYGEN
745: class Add_header_attribute_info
746: {
747: public:
748: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
749: Request& r;
750: bool add_last_modified;
751: };
752: #endif
1.344 moko 753: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
754: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 755: return;
1.290 misha 756:
1.345 moko 757: if(name==LAST_MODIFIED_NAME_UPPER)
758: info->add_last_modified=false;
759:
1.316 misha 760: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 761:
1.267 paf 762: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 763: aname,
1.316 misha 764: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 765: );
1.267 paf 766: }
767:
1.366 moko 768: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 769: // transcode text body when "text/*" or simple result
770: String::C output(body_file.value_ptr(), body_file.value_size());
771: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 772: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 773:
1.311 misha 774: // prepare header: Content-Length
1.428 moko 775: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, pa_uitoa(output.length));
1.267 paf 776:
777: // send header
1.430 moko 778: SAPI::send_headers(r.sapi_info);
1.267 paf 779:
780: // send body
781: if(!header_only)
782: SAPI::send_body(r.sapi_info, output.str, output.length);
783: }
784:
785: #ifndef DOXYGEN
786: struct Range
787: {
1.396 moko 788: uint64_t start;
789: uint64_t end;
1.267 paf 790: };
791: #endif
1.396 moko 792:
793: #define UNSET ((uint64_t)-1)
794:
1.313 misha 795: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 796: const char *p = s->cstr();
797: if(s->starts_with("bytes="))
798: p += 6;
799: Range r;
800: while(*p){
1.396 moko 801: r.start = UNSET;
802: r.end = UNSET;
1.401 moko 803:
804: while(*p==' ' || *p=='\t') p++;
805:
1.267 paf 806: if(*p >= '0' && *p <= '9'){
1.416 moko 807: const char *n=p;
1.401 moko 808: while(*p>='0' && *p<='9') p++;
1.440 moko 809: r.start = pa_atoul(pa_strdup(n, p-n)); // ((uint64_t)-1) is treated as UNSET
1.267 paf 810: }
1.401 moko 811:
812: while(*p==' ' || *p=='\t') p++;
813:
1.267 paf 814: if(*p++ != '-') break;
1.401 moko 815:
816: while(*p==' ' || *p=='\t') p++;
817:
1.267 paf 818: if(*p >= '0' && *p <= '9'){
1.416 moko 819: const char *n=p;
1.401 moko 820: while(*p>='0' && *p<='9') p++;
1.440 moko 821: r.end = pa_atoul(pa_strdup(n, p-n)); // ((uint64_t)-1) is treated as UNSET
1.267 paf 822: }
1.401 moko 823:
824: while(*p==' ' || *p=='\t') p++;
825:
826: if(*p)
827: if(*p++ != ',') break;
828:
1.267 paf 829: ar += r;
830: }
1.101 paf 831: }
1.267 paf 832:
1.400 moko 833: struct Send_range_action_info {
834: Request *r;
835: uint64_t offset;
836: uint64_t part_length;
837: };
838:
839: static void send_range(struct stat& /*finfo*/, int f, const String& /*file_spec*/, void *context){
840: Send_range_action_info &info = *(Send_range_action_info*)context;
841:
1.430 moko 842: SAPI::send_headers(info.r->sapi_info);
1.400 moko 843: pa_lseek(f, info.offset, SEEK_SET);
844:
1.432 moko 845: char buf[FILE_BUFFER_SIZE];
1.400 moko 846: do{
1.432 moko 847: size_t to_read = info.part_length < FILE_BUFFER_SIZE ? (size_t)info.part_length : FILE_BUFFER_SIZE;
1.400 moko 848: size_t to_write = file_block_read(f, buf, to_read);
849:
850: if(to_write == 0)
851: break;
852:
853: size_t size = SAPI::send_body(info.r->sapi_info, buf, to_write);
854: if(size != to_write)
855: break;
856:
857: info.part_length -= to_write;
858: } while (info.part_length);
859: }
860:
1.396 moko 861: static void output_pieces(Request& r, bool header_only, const String& filename, uint64_t content_length, Value& date, bool add_last_modified) {
1.315 misha 862: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 863:
1.339 moko 864: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.396 moko 865: uint64_t offset=0;
866: uint64_t part_length=content_length;
1.401 moko 867:
868: if(range && content_length){
1.267 paf 869: Array<Range> ar;
870: parse_range(new String(range), ar);
1.396 moko 871: int count = ar.count();
1.267 paf 872: if(count == 1){
873: Range &rg = ar.get_ref(0);
1.401 moko 874:
875: if(rg.start == UNSET && rg.end == UNSET)
876: return SAPI::send_error(r.sapi_info, "", "416");
877:
1.396 moko 878: if(rg.start == UNSET && rg.end != UNSET){
1.440 moko 879: if(rg.end == 0)
880: return SAPI::send_error(r.sapi_info, "", "416");
1.401 moko 881: if(rg.end > content_length)
882: rg.end = content_length;
1.404 moko 883: rg.start = content_length - rg.end;
884: rg.end = content_length-1;
1.401 moko 885: } else if(rg.start != UNSET && rg.end == UNSET){
886: if(rg.start >= content_length)
887: return SAPI::send_error(r.sapi_info, "", "416");
1.267 paf 888: rg.end = content_length-1;
1.401 moko 889: } else {
890: if(rg.start >= content_length || rg.start > rg.end)
891: return SAPI::send_error(r.sapi_info, "", "416");
892: if(rg.end >= content_length)
893: rg.end = content_length-1;
1.267 paf 894: }
1.401 moko 895:
896: offset = rg.start;
897: part_length = rg.end-rg.start+1;
898:
1.400 moko 899: char buf[MAX_STRING];
1.448 ! moko 900: snprintf(buf, MAX_STRING, "bytes %s-%s/%s", pa_uitoa(rg.start), pa_uitoa(rg.end), pa_uitoa(content_length));
1.401 moko 901: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206");
1.315 misha 902: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.401 moko 903: } else {
1.410 moko 904: return SAPI::send_error(r.sapi_info, count ? "Multiple ranges are not supported" : "Invalid range", count ? "501" : "400");
1.267 paf 905: }
906: }
907:
1.428 moko 908: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, pa_uitoa(part_length));
1.267 paf 909:
1.314 misha 910: if(add_last_modified)
1.315 misha 911: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 912:
1.414 moko 913: if(header_only){
1.430 moko 914: SAPI::send_headers(r.sapi_info);
1.414 moko 915: } else {
1.400 moko 916: Send_range_action_info info = { &r, offset, part_length};
917: file_read_action_under_lock(r.full_disk_path(filename), "send", send_range, &info);
1.267 paf 918: }
919: }
920:
1.248 paf 921: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 922: // header: cookies
1.248 paf 923: cookie.output_result(sapi_info);
1.51 paf 924:
1.394 moko 925: // $.file and $.name (when body is real vfile)
926: Value* vfile = body_file->fields().get(response_body_file_name);
927: Value* vname = body_file->fields().get(name_name);
928:
929: const String* sfile = vfile ? &vfile->as_string() : NULL;
930: const String* sname = vname ? &vname->as_string() : NULL;
931:
932: if(sname && *sname == NONAME_DAT)
933: sname = NULL;
1.92 paf 934:
1.409 moko 935: // Content-Disposition, use $.name[<empty>] to avoid
1.394 moko 936: const String* disposition_name = sname ? sname->is_empty() ? NULL : sname : sfile;
937: if(disposition_name) {
1.420 moko 938: String& filename = *new String(pa_filename(disposition_name->cstr()), String::L_URI);
939: String& filename_asterisk = *new String(charsets.client().NAME(), String::L_CLEAN) << (*new String("''")) << filename;
940:
1.394 moko 941: VHash& hash=*new VHash();
942: hash.hash().put(value_name, new VString(as_attachment ? content_disposition_attachment : content_disposition_inline));
1.420 moko 943: hash.hash().put(content_disposition_filename_name, new VString(filename));
944: hash.hash().put(content_disposition_filename_name_asterisk, new VString(filename_asterisk));
1.394 moko 945: response.fields().put(content_disposition_name_upper, &hash);
946: }
1.267 paf 947:
1.394 moko 948: // _file_ content-type might be specified
949: Value* body_file_content_type = body_file->fields().get(content_type_name);
950: if(!body_file_content_type){
951: const String* scontent_name = sname && !sname->is_empty() ? sname : sfile;
952: if(scontent_name)
953: body_file_content_type = new VString(mime_type_of(scontent_name->cstr()));
1.267 paf 954: }
955:
1.312 misha 956: // set Content-Type
1.314 misha 957: if(body_file_content_type) {
958: // body file content type
1.344 moko 959: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 960: } else {
961: // default content type
1.344 moko 962: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 963: }
1.312 misha 964:
1.314 misha 965: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 966: Add_header_attribute_info info(*this);
1.281 paf 967: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 968:
1.394 moko 969: if(sfile) {
1.314 misha 970: // $response:[download|body][$.file[filespec]] -- optput specified file
1.367 moko 971: uint64_t content_length=0;
1.267 paf 972: time_t atime=0, mtime=0, ctime=0;
1.394 moko 973: file_stat(full_disk_path(*sfile), content_length, atime, mtime, ctime);
1.267 paf 974:
975: VDate* vdate=0;
976: if(Value* v=body_file->fields().get("mdate")) {
1.423 moko 977: vdate=dynamic_cast<VDate*>(v);
978: if(!vdate)
1.286 misha 979: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 980: }
981: if(!vdate)
1.346 moko 982: vdate=new VDate((pa_time_t)mtime);
1.62 paf 983:
1.399 moko 984: output_pieces(*this, header_only, *sfile, content_length, *vdate, info.add_last_modified);
1.267 paf 985: } else {
1.314 misha 986: if(body_file_content_type)
987: if(HashStringValue *hash=body_file_content_type->get_hash())
988: body_file_content_type=hash->get(value_name);
989:
1.366 moko 990: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 991: }
1.50 paf 992: }
1.104 paf 993:
1.328 misha 994: const String& Request::mime_type_of(const String* file_name) {
995: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
996: }
997:
1.248 paf 998: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 999: if(mime_types)
1.248 paf 1000: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
1001: String sext(++cext);
1.246 paf 1002: Table::Action_options options;
1.342 moko 1003: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 1004: if(const String* result=mime_types->item(1))
1005: return *result;
1.104 paf 1006: else
1.395 moko 1007: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 1008: }
1.104 paf 1009: }
1.248 paf 1010:
1011: return *new String("application/octet-stream");
1012: }
1013:
1.365 moko 1014: const String* Request::get_used_filespec(uint file_no){
1.318 misha 1015: if(file_no < file_list.count())
1016: return new String(file_list[file_no], String::L_TAINTED);
1017: return 0;
1018: }
1019:
1.248 paf 1020: #ifdef XML
1.280 paf 1021: xmlChar* Request::transcode(const String& s) {
1.248 paf 1022: return charsets.source().transcode(s);
1023: }
1024:
1.280 paf 1025: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 1026: return charsets.source().transcode(s);
1027: }
1028:
1.280 paf 1029: const String& Request::transcode(const xmlChar* s) {
1.248 paf 1030: return charsets.source().transcode(s);
1.233 paf 1031: }
1.248 paf 1032: #endif
1033:
1.442 moko 1034: VException::VException(Request& r, const Exception& e):
1035: fexception(e), fhandled(&VBool::get(false)),
1.444 moko 1036: ftrace_bottom(r.exception_trace.bottom_index()), ftrace_top(r.exception_trace.top_index()),
1.442 moko 1037: origin(Operation::Origin::create(0, 0, 0)), problem_source(e.problem_source()) {
1038: Request::Exception_trace& exception_trace=r.exception_trace;
1.248 paf 1039:
1.349 moko 1040: if(!exception_trace.is_empty()) {
1.442 moko 1041: Request::Trace bottom=exception_trace.bottom_value();
1.350 moko 1042: origin=bottom.origin();
1.443 moko 1043: if(!problem_source) // we don't know who trigged the bug
1.350 moko 1044: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
1.248 paf 1045: }
1.442 moko 1046: if(origin.file_no)
1047: ffile=r.file_list[origin.file_no];
1048: }
1049:
1050: Value* VException::handled() {
1051: return fhash ? fhash->get(Symbols::HANDLED_SYMBOL) : fhandled;
1052: }
1.248 paf 1053:
1.444 moko 1054: Table& VException::stack(Request& r) {
1055: if(ftrace_top==size_t(-1))
1056: throw Exception(PARSER_RUNTIME, 0, "exception stack used outside of context");
1057: return r.exception_trace.table(r, problem_source, ftrace_bottom, ftrace_top);
1058: }
1059:
1.442 moko 1060: Value* VException::get_element(const String& name) {
1061: if(!fhash) {
1062: if(SYMBOLS_EQ(name,HANDLED_SYMBOL))
1063: return fhandled;
1064: if(SYMBOLS_EQ(name,TYPE_SYMBOL))
1065: return fexception.type(true) ? new VString(*new String(fexception.type())) : 0;
1066: if(SYMBOLS_EQ(name,SOURCE_SYMBOL))
1067: return problem_source ? new VString(*problem_source) : 0;
1068: if(SYMBOLS_EQ(name,COMMENT_SYMBOL))
1069: return fexception.comment(true) ? new VString(fexception.comment()) : 0;
1070: if(SYMBOLS_EQ(name,FILE_SYMBOL))
1071: return origin.file_no ? new VString(ffile) : 0;
1072: if(SYMBOLS_EQ(name,LINENO_SYMBOL))
1073: return origin.file_no ? new VInt(1+origin.line) : 0;
1074: if(SYMBOLS_EQ(name,COLNO_SYMBOL))
1075: return origin.file_no ? new VInt(1+origin.col) : 0;
1076: if(SYMBOLS_EQ(name,FIELDS_SYMBOL))
1077: return this;
1078: }
1079: // Computed field names need not be interned: use ordinary hash lookup.
1080: return VHashReference::get_element(name);
1081: }
1082:
1083: const VJunction* VException::put_element(const String& name, Value* value) {
1084: if(!fhash && SYMBOLS_EQ(name,HANDLED_SYMBOL)) {
1085: fhandled=value;
1086: return 0;
1087: }
1088: return VHashReference::put_element(name, value);
1089: }
1090:
1091: HashStringValue& VException::hash() {
1092: if(fhash)
1093: return *fhash;
1094: HashStringValue& result=*new HashStringValue;
1.248 paf 1095:
1.442 moko 1096: if(const char* type=fexception.type(true))
1097: result.put(Symbols::TYPE_SYMBOL, new VString(*new String(type)));
1.349 moko 1098: if(problem_source)
1.442 moko 1099: result.put(Symbols::SOURCE_SYMBOL, new VString(*problem_source));
1100: if(origin.file_no) {
1101: result.put(Symbols::FILE_SYMBOL, new VString(ffile));
1102: result.put(Symbols::LINENO_SYMBOL, new VInt(1+origin.line));
1103: result.put(Symbols::COLNO_SYMBOL, new VInt(1+origin.col));
1104: }
1105: if(const char* comment=fexception.comment(true))
1106: result.put(Symbols::COMMENT_SYMBOL, new VString(comment));
1107: result.put(Symbols::HANDLED_SYMBOL, fhandled);
1.248 paf 1108:
1.442 moko 1109: fhash=&result;
1110: return result;
1.133 parser 1111: }
1.337 moko 1112:
1113: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
1114: frequest(arequest),
1115: fwhere(awhere),
1116: fname(aname),
1117: saved(awhere.get_element(aname))
1118: {
1119: Junction* junction;
1120: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1121: saved=0;
1122: frequest.put_element(fwhere, aname, awhat);
1123: }
1124:
1125: Temp_value_element::~Temp_value_element() {
1126: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1127: }
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