Annotation of parser3/src/main/pa_request.C, revision 1.444
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"
1.441 moko 10: #include "pa_dir.h"
1.372 moko 11: #include "pa_os.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"
1.402 moko 29: #include "pa_http.h"
1.248 paf 30: #include "pa_vmail.h"
31: #include "pa_vform.h"
32: #include "pa_vcookie.h"
33: #include "pa_vresponse.h"
34: #include "pa_vmemory.h"
1.253 paf 35: #include "pa_vconsole.h"
1.267 paf 36: #include "pa_vdate.h"
1.424 moko 37: #include "pa_varray.h"
1.159 parser 38:
1.444 ! moko 39: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.443 2026/09/25 12:55:42 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 40:
1.248 paf 41: // consts
42:
1.269 paf 43: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 44:
1.82 paf 45: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 46: const char* DEFAULT_CONTENT_TYPE="text/html";
47:
1.425 moko 48: const uint LOOP_LIMIT=100000;
49: const uint ARRAY_LIMIT=1000000;
1.427 moko 50: const uint EXECUTE_RECURSION_LIMIT=1000;
1.390 moko 51: const uint 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: //
1.408 moko 133: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info, String::Language adefault_lang):
1.248 paf 134: // private
1.427 moko 135: anti_endless_execute_recursion(0),
1.248 paf 136:
137: // public
1.335 moko 138: allow_class_replace(false),
1.248 paf 139: method_frame(0),
140: rcontext(0),
141: wcontext(0),
142: flang(adefault_lang),
1.191 paf 143: fconnection(0),
1.371 moko 144: fin_cycle(0),
1.307 misha 145: fskip(SKIP_NOTHING),
1.248 paf 146:
147: // public
1.257 paf 148: request_info(arequest_info),
1.248 paf 149: sapi_info(asapi_info),
1.359 moko 150: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 151:
152: main_class(VClassMAIN_create()),
1.260 paf 153: form(*new VForm(charsets, arequest_info)),
1.248 paf 154: mail(*new VMail),
155: response(*new VResponse(arequest_info, charsets)),
1.298 misha 156: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 157: console(*new VConsole),
1.248 paf 158:
159: // private
160: configure_admin_done(false),
161:
162: // private defaults
163: fdefault_lang(adefault_lang),
164: // private mime types
165: mime_types(0)
1.157 parser 166: {
1.261 paf 167: pa_register_thread_request(*this);
168:
1.248 paf 169: // file_no=0 => unknown
1.434 moko 170: file_list+=String::Body("UNKNOWN");
171: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 172:
1.178 paf 173: // maybe expire old caches
1.264 paf 174: cache_managers->maybe_expire();
1.178 paf 175:
1.157 parser 176: /// directly used
1.233 paf 177: // MAIN class, operators
1.353 moko 178: put_class(&main_class);
1.157 parser 179: // classes:
180: // table, file, random, mail, image, ...
1.248 paf 181: methoded_array().register_directly_used(*this);
1.157 parser 182:
183: /// methodless
1.354 moko 184:
1.157 parser 185: // env class
1.353 moko 186: put_class(new VEnv(asapi_info));
1.175 paf 187: // status class
1.353 moko 188: put_class(new VStatus());
1.157 parser 189: // request class
1.353 moko 190: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 191: // cookie class
1.353 moko 192: put_class(&cookie);
1.253 paf 193: // console class
1.353 moko 194: put_class(&console);
1.354 moko 195:
1.157 parser 196: /// methoded
1.354 moko 197:
1.157 parser 198: // response class
1.353 moko 199: put_class(&response);
1.157 parser 200: // form class
1.353 moko 201: put_class(&form);
1.213 paf 202: // mail class
1.353 moko 203: put_class(&mail);
1.157 parser 204: // math class
1.353 moko 205: put_class(new VMath);
1.248 paf 206: // memory class
1.353 moko 207: put_class(new VMemory);
1.117 paf 208: }
1.192 paf 209:
210: Request::~Request() {
211: #ifdef XML
212: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 213: if(const char* xml_generic_errors=xmlGenericErrors()) {
214: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 215: pa_free((void *)xml_generic_errors);
1.192 paf 216: }
217: #endif
218: }
1.236 paf 219:
1.248 paf 220: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 221:
1.355 moko 222: VStateless_class* Request::get_class(const String& name){
223: VStateless_class* result=classes().get(name);
1.313 misha 224: if(!result)
1.375 moko 225: if(const Method *method=main_class.get_element_method(autouse_method_name)){
1.364 moko 226: Value *vname=new VString(name);
227: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
228: frame.store_params(&vname, 1);
229: // we don't need the result
230: call(frame);
231: });
232: result=classes().get(name);
233: }
1.309 misha 234: return result;
235: }
236:
1.411 moko 237: VStateless_class& Request::get_class_ref(const String& name){
238: VStateless_class* result=get_class(name);
239: if(!result)
240: throw Exception(PARSER_RUNTIME, &name, "class is undefined");
241: return *result;
242: }
243:
1.424 moko 244: bool Request::add_class(const char* atype, VStateless_class *aclass){
1.436 moko 245: if(!classes().put_dont_replace(String::Body(atype), aclass))
246: return true;
1.437 moko 247: if(!allow_class_replace && strcmp(atype, VARRAY_TYPE))
248: return false;
1.436 moko 249: classes().remove(String::Body(atype));
1.424 moko 250: classes().put(atype, aclass);
251: return true;
252: }
253:
1.356 moko 254: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 255: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 256: }
1.356 moko 257:
1.395 moko 258:
259: #define CONF_OPTION(config, name, code, exception_name) \
260: if(config) \
261: if(Value* option=config->get_element(name)) { \
262: if(option->is_evaluated_expr()) { \
263: code; \
264: } else \
1.415 moko 265: throw Exception(PARSER_RUNTIME, 0, "$MAIN:" exception_name, name.cstr()); \
1.395 moko 266: }
267:
1.248 paf 268: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 269: if(configure_admin_done)
1.356 moko 270: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 271: configure_admin_done=true;
272:
1.227 paf 273: // charsets must only be specified in method_frame config
1.208 paf 274: // so that users would not interfere
275:
276: /* $MAIN:CHARSETS[
277: $.charsetname1[/full/path/to/charset/file.cfg]
278: ...
279: ]
280: */
1.308 misha 281: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 282: if(!vcharsets->is_string()) {
1.248 paf 283: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 284: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 285: else
1.415 moko 286: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be hash", charsets_name.cstr());
1.342 moko 287: }
1.208 paf 288: }
289:
1.330 moko 290: #ifdef STRICT_VARS
1.332 moko 291: VVoid::strict_vars=false;
1.330 moko 292: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
293: if(strict_vars->is_bool())
294: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 295: else
1.415 moko 296: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", strict_vars_name.cstr());
1.357 moko 297: }
298: #endif
299:
300: #ifdef OBJECT_PROTOTYPE
301: VClass::prototype=true;
302: if(Value* prototype=conf_class.get_element(prototype_name)) {
303: if(prototype->is_bool())
304: VClass::prototype=prototype->as_bool();
305: else
1.415 moko 306: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", prototype_name.cstr());
1.330 moko 307: }
308: #endif
309:
1.415 moko 310: #ifdef CLASS_GETTER_UNPROTECTED
311: VClass::getter_protected=true;
312: if(Value* getter_protected=conf_class.get_element(getter_protected_name)) {
313: if(getter_protected->is_bool())
314: VClass::getter_protected=getter_protected->as_bool();
315: else
316: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", getter_protected_name.cstr());
317: }
318: #endif
319:
320: VStateless_class::gall_vars_local=false;
321: if(Value* locals=conf_class.get_element(locals_name)) {
322: if(locals->is_bool()){
323: VStateless_class::gall_vars_local=locals->as_bool();
324: main_class.set_all_vars_local();
325: } else
326: throw Exception(PARSER_RUNTIME, 0, "$MAIN:%s must be bool", locals_name.cstr());
327: }
328:
1.362 moko 329: Value* limits=conf_class.get_element(limits_name);
330:
1.361 moko 331: pa_loop_limit=LOOP_LIMIT;
1.395 moko 332: CONF_OPTION(limits, loop_limit_name, {
333: pa_loop_limit=option->as_int();
334: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
335: }, "LIMITS.%s must be int");
1.361 moko 336:
1.425 moko 337: pa_array_limit=ARRAY_LIMIT;
338: CONF_OPTION(limits, array_limit_name, {
339: pa_array_limit=option->as_int();
340: if(pa_array_limit==0) pa_array_limit=INT_MAX;
341: }, "LIMITS.%s must be int");
342:
1.427 moko 343: pa_execute_recursion_limit=EXECUTE_RECURSION_LIMIT;
344: CONF_OPTION(limits, recursion_limit_name, {
345: pa_execute_recursion_limit=option->as_int();
346: if(pa_execute_recursion_limit==0) pa_execute_recursion_limit=INT_MAX;
1.395 moko 347: }, "LIMITS.%s must be int");
1.390 moko 348:
1.369 moko 349: pa_file_size_limit=FILE_SIZE_LIMIT;
1.395 moko 350: CONF_OPTION(limits, file_size_limit_name, {
351: double limit=option->as_double();
352: if(limit >= (double)SSIZE_MAX)
1.426 moko 353: throw Exception(PARSER_RUNTIME, 0, "$MAIN:LIMITS.%s must be less than %.15g", file_size_limit_name.cstr(), (double)SSIZE_MAX);
1.395 moko 354: pa_file_size_limit=(size_t)limit;
355: if(pa_file_size_limit==0)
356: pa_file_size_limit=SSIZE_MAX;
357: }, "LIMITS.%s must be number");
1.361 moko 358:
1.372 moko 359: pa_lock_attempts=PA_LOCK_ATTEMPTS;
1.395 moko 360: CONF_OPTION(limits, lock_wait_timeout_name, {
361: double limit=option->as_double();
362: if(limit >= 3600*24)
1.426 moko 363: throw Exception(PARSER_RUNTIME, 0, "$MAIN:LIMITS.%s must be less than %d", lock_wait_timeout_name.cstr(), 3600*24);
1.395 moko 364: pa_lock_attempts=(unsigned int)(limit*2)+1;
365: }, "LIMITS.%s must be number");
366:
367: Value* httpd=conf_class.get_element(httpd_name);
368:
369: pa_httpd_timeout=HTTPD_TIMEOUT;
370: CONF_OPTION(httpd, httpd_timeout_name, {
371: pa_httpd_timeout=option->as_int();
372: if(pa_httpd_timeout==0) pa_httpd_timeout=INT_MAX;
373: }, "HTTPD.%s must be int");
1.372 moko 374:
1.403 moko 375: if(httpd)
376: if(Value* option=httpd->get_element( httpd_mode_name)) {
377: if(option->get_junction())
1.415 moko 378: throw Exception(PARSER_RUNTIME, 0, "$MAIN:HTTPD:mode must be string");
1.403 moko 379: HTTPD_Server::set_mode(option->as_string());
380: }
1.402 moko 381:
1.227 paf 382: // configure method_frame options
1.208 paf 383: // until someone with less privileges have overriden them
1.248 paf 384: methoded_array().configure_admin(*this);
1.208 paf 385: }
1.150 parser 386:
1.442 moko 387: const char* Request::get_exception_cstr(const Exception& e, VException& details) {
1.349 moko 388:
1.269 paf 389: #define PA_URI_FORMAT "%s: "
1.349 moko 390: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
391:
1.269 paf 392: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
393: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 394:
395: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
396: #define PA_SOURCE_VALUE details.problem_source->cstr(),
397:
398: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
399: snprintf(result, MAX_STRING, \
400: PA_URI_FORMAT \
401: f1 f2 \
402: PA_COMMENT_TYPE_FORMAT, \
403: request_info.uri, \
404: v1 v2 \
405: e.comment(), e.type() \
406: );
407:
1.269 paf 408: char* result=new(PointerFreeGC) char[MAX_STRING];
409:
410: if(details.problem_source) { // do we know the guy?
1.349 moko 411: if(details.origin.file_no) // do whe know where he came from?
412: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
413: else
414: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
415: } else {
416: if(details.origin.file_no) // do whe know where he came from?
417: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
418: else
419: EXCEPTION_CSTR(,,,)
420: }
1.269 paf 421:
422: return result;
423: }
1.272 paf 424:
1.444 ! moko 425: Table &Request::Exception_trace::table(Request &r, const String* problem_source, size_t bottom, size_t top){
1.407 moko 426: // $stack[^table::create{name file lineno colno}]
427: Table::columns_type stack_trace_columns(new ArrayString);
428: *stack_trace_columns+=new String("name");
429: *stack_trace_columns+=new String("file");
430: *stack_trace_columns+=new String("lineno");
431: *stack_trace_columns+=new String("colno");
432: Table& stack_trace=*new Table(stack_trace_columns);
433:
1.444 ! moko 434: if(bottom<top)
! 435: for(size_t i=bottom+(get(bottom).name()==problem_source); i<top; i++) {
1.407 moko 436: Trace trace=get(i);
437: Table::element_type row(new ArrayString);
438:
439: *row+=trace.name(); // name column
440: Operation::Origin origin=trace.origin();
441: if(origin.file_no) {
442: *row+=new String(r.file_list[origin.file_no], String::L_TAINTED); // 'file' column
1.422 moko 443: *row+=new String(pa_uitoa(1+origin.line), String::L_CLEAN); // 'lineno' column
444: *row+=new String(pa_uitoa(1+origin.col), String::L_CLEAN); // 'colno' column
1.407 moko 445: }
446: stack_trace+=row;
447: }
448:
449: return stack_trace;
450: }
451:
1.272 paf 452: void Request::configure() {
453: // configure admin options if not configured yet
454: if(!configure_admin_done)
455: configure_admin(main_class);
456:
457: // $MAIN:MIME-TYPES
1.308 misha 458: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 459: if(Table *table=element->get_table())
1.395 moko 460: mime_types=table;
1.272 paf 461: }
1.408 moko 462:
1.64 paf 463: /**
464: load MAIN class, execute @main.
465: MAIN class consists of all the auto.p files we'd manage to find
466: plus
467: the file user requested us to process
468: all located classes become children of one another,
469: composing class we name 'MAIN'
1.180 paf 470:
471: @test log stack trace
472:
1.64 paf 473: */
1.412 moko 474: void Request::core(const char* config_filespec, bool header_only, const String &amain_method_name, const String* amain_class_name) {
1.169 parser 475: try {
1.211 paf 476: // loading config
1.384 moko 477: if(config_filespec)
1.387 moko 478: use_file_directly(*new String(config_filespec));
1.8 paf 479:
1.338 moko 480: // filling mail received
481: mail.fill_received(*this);
482:
1.272 paf 483: try {
484: // compile requested file
1.389 moko 485: if(request_info.path_translated)
486: use_file_directly(*new String(request_info.path_translated, String::L_TAINTED), true, true /* load auto.p files */);
1.272 paf 487: configure();
488: } catch(...) {
489: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
490: rethrow;
491: }
1.25 paf 492:
1.412 moko 493: VStateless_class& main = amain_class_name ? get_class_ref(*amain_class_name) : main_class;
1.25 paf 494: // execute @main[]
1.412 moko 495: const String* body_string=amain_method_name.is_empty() ? &String::Empty : execute_method(main, amain_method_name);
1.41 paf 496: if(!body_string)
1.412 moko 497: throw Exception(PARSER_RUNTIME, &amain_method_name, "method not found in class %s", main.type());
1.79 paf 498:
1.250 paf 499: // extract response body
1.344 moko 500: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.430 moko 501: bool as_attachment=body_value!=0;
1.250 paf 502: if(!body_value)
1.344 moko 503: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 504: if(!body_value)
505: body_value=new VString(*body_string); // just result of ^main[]
506:
1.119 paf 507: // @postprocess
1.383 moko 508: if(const Method *method=main_class.get_method(post_process_method_name)) {
509: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
510: frame.store_params(&body_value, 1);
511: call(frame);
512: body_value=&frame.result();
513: });
514: }
1.90 paf 515:
1.430 moko 516: // can throw exceptions while handling $response:download[]
517: output_result(body_value->as_vfile(flang, &charsets), header_only, as_attachment);
1.171 parser 518: } catch(const Exception& e) { // request handling problem
1.258 paf 519:
1.431 moko 520: // we're returning not result, but error explanation
1.442 moko 521: VException& details=*new VException(*this, e);
1.431 moko 522: const char* exception_cstr=get_exception_cstr(e, details);
523:
524: // reset language to default
525: flang=fdefault_lang;
526: // reset response
527: response.fields().clear();
528: SAPI::clear_headers(sapi_info);
1.407 moko 529:
1.431 moko 530: // this is what we'd return in $response:body
531: const String* body_string=0;
1.407 moko 532:
1.431 moko 533: try {
1.407 moko 534: // maybe we'd be lucky enough as to report an error in a gracefull way...
535: if(const Method *method=main_class.get_method(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
536: // preparing parameters to @unhandled_exception[exception;stack]
537:
1.443 moko 538: Table& stack_trace=exception_trace.table(*this, details.problem_source);
1.444 ! moko 539: details.expire_trace();
1.407 moko 540: 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)
541:
1.442 moko 542: Value *params[]={&details, new VTable(&stack_trace)};
1.407 moko 543: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
544: frame.store_params(params, 2);
545: call(frame);
546: body_string=&frame.result().as_string();
547: });
548: }
1.383 moko 549:
1.407 moko 550: // conditionally log it
1.442 moko 551: Value* vhandled=details.handled();
1.407 moko 552: if(!vhandled || !vhandled->as_bool()) {
553: SAPI::log(sapi_info, "%s", exception_cstr);
554: }
1.431 moko 555: } catch(const Exception& e) { // exception in @unhandled_exception
1.442 moko 556: VException& details=*new VException(*this, e);
1.431 moko 557: // logging both initial and new exceptions
558: SAPI::log(sapi_info, "%s", exception_cstr);
559: SAPI::log(sapi_info, "Exception in @unhandled_exception at %s", get_exception_cstr(e, details));
560: SAPI::send_error(sapi_info, "Exception in @unhandled_exception, details are available in Parser error log.");
561: return;
562: }
1.383 moko 563:
1.431 moko 564: if(body_string) { // could report an error beautifully?
565: VString body_vstring(*body_string);
566: output_result(body_vstring.as_vfile(flang, &charsets), header_only, false);
567: } else {
568: // doing that ugly
569: SAPI::send_error(sapi_info, exception_cstr, strcmp(e.type(), "file.missing") ? "500" : "404");
1.268 paf 570: }
1.1 paf 571: }
572: }
573:
1.266 paf 574: uint Request::register_file(String::Body file_spec) {
1.248 paf 575: file_list+=file_spec;
576: return file_list.count()-1;
577: }
578:
1.387 moko 579: void Request::use_file_directly(const String& file_spec, bool fail_on_file_absence, bool with_auto_p) {
1.73 paf 580: // cyclic dependence check
1.318 misha 581: if(used_files.get(file_spec))
1.248 paf 582: return;
1.318 misha 583: used_files.put(file_spec, true);
584:
1.385 moko 585: if(!fail_on_file_absence && !entry_exists(file_spec)) // ignore file absence if asked for
586: return;
1.318 misha 587:
1.386 moko 588: if(with_auto_p) {
589: // loading auto.p files from document_root/..
590: // to the one beside requested file.
591: // all assigned bases from upper dir
592: const char* target=file_spec.cstr();
593:
594: // all relative paths are calculated from main document
595: request_info.path_translated=target;
596:
597: const char* after=target;
598: size_t drlen=strlen(request_info.document_root);
599: if(memcmp(after, request_info.document_root, drlen)==0) {
600: after+=drlen;
601: if(after[-1]=='/')
602: --after;
603: }
604:
605: while(const char* before=strchr(after, '/')) {
606: String& sfile_spec=*new String;
607: if(after!=target) {
608: sfile_spec.append_strdup(target, before-target, String::L_CLEAN);
609: sfile_spec << "/" AUTO_FILE_NAME;
610:
1.387 moko 611: use_file_directly(sfile_spec, false /*ignore absence, sole user*/);
1.386 moko 612: }
613: for(after=before+1;*after=='/';after++);
614: }
615: }
616:
1.385 moko 617: if(const char* source=file_read_text(charsets, file_spec, true))
1.387 moko 618: use_buf(main_class, source, 0, register_file(file_spec));
1.318 misha 619: }
620:
621:
1.387 moko 622: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, bool with_auto_p) {
1.326 misha 623: if(file_name.is_empty())
1.366 moko 624: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 625:
1.318 misha 626: const String* filespec=0;
627:
628: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.388 moko 629: filespec=&full_disk_path(file_name);
1.318 misha 630: else if(use_filespec){ // search in current dir first
1.331 misha 631: size_t last_slash_pos=use_filespec->strrpbrk("/");
632: if(last_slash_pos!=STRING_NOT_FOUND)
633: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 634: }
635:
636: if(!filespec){
637: // prevent multiple scan CLASS_PATH for searching one file
638: if(searched_along_class_path.get(file_name))
639: return;
640: searched_along_class_path.put(file_name, true);
1.308 misha 641: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 642: if(element->is_string()) {
1.388 moko 643: filespec=file_exist(full_disk_path(element->as_string()), file_name); // found at class_path?
1.233 paf 644: } else if(Table *table=element->get_table()) {
1.318 misha 645: for(size_t i=table->count(); i--; ) {
1.248 paf 646: const String& path=*(*table->get(i))[0];
1.388 moko 647: if(filespec=file_exist(full_disk_path(path), file_name))
1.233 paf 648: break; // found along class_path
649: }
650: } else
1.366 moko 651: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 652: if(!filespec)
1.415 moko 653: throw Exception(PARSER_RUNTIME, &file_name, "not found along $MAIN:" CLASS_PATH_NAME);
1.318 misha 654: } else
1.415 moko 655: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $MAIN:" CLASS_PATH_NAME " were specified");
1.148 parser 656: }
1.230 paf 657:
1.387 moko 658: use_file_directly(*filespec, true, with_auto_p);
1.16 paf 659: }
660:
1.364 moko 661: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 662: static String use("USE");
663: try {
1.364 moko 664: static VHash* voptions=new VHash();
1.376 moko 665: if(const Method *method=main_class.get_method(use_method_name)){
1.364 moko 666: Value *params[]={new VString(file_name), voptions};
667: voptions->hash().put(origin_key, new VString(*use_filespec));
668:
669: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
670: frame.store_params(params, 2);
671: // we don't need the result
672: call(frame);
673: });
674: }
1.349 moko 675: } catch (...) {
676: exception_trace.push(Trace(&use, origin));
677: rethrow;
678: }
679: }
1.208 paf 680:
1.358 moko 681: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
682: // temporary zero @conf to avoid it second execution
1.248 paf 683: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 684: // temporary zero @auto to avoid it second execution
1.248 paf 685: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 686:
1.295 misha 687: // compile loaded classes
688: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 689:
1.248 paf 690: VString* vfilespec=
1.435 moko 691: new VString(file_list[file_no]);
1.295 misha 692:
693: for(size_t i=0; i<cclasses.count(); i++){
694: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 695:
696: // locate and execute possible @conf[] static
1.382 moko 697: if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
1.295 misha 698: configure_admin(cclass/*, executed.method->name*/);
699:
700: // locate and execute possible @auto[] static
1.419 moko 701: execute_auto_method_if_exists(cclass, auto_method_name, vfilespec);
1.336 moko 702:
703: cclass.enable_default_setter();
1.295 misha 704: }
1.19 paf 705: }
706:
1.248 paf 707: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 708: char *hpath=pa_strdup(apath);
1.248 paf 709: String& result=*new String;
710: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 711: result << hpath << "/";
1.248 paf 712: result << relative_name;
713: return result;
1.19 paf 714: }
715:
1.388 moko 716: const String& Request::full_disk_path(const String& relative_name) {
1.441 moko 717: if(is_os_absolute_path(relative_name))
718: return relative_name;
1.217 paf 719: if(relative_name.first_char()=='/') {
1.341 moko 720: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 721: result << relative_name;
1.19 paf 722: return result;
1.389 moko 723: }
1.441 moko 724: if(relative_name.starts_with("http://") || relative_name.starts_with("parser://"))
1.389 moko 725: return relative_name;
726:
727: return relative(request_info.path_translated ? request_info.path_translated : request_info.document_root, relative_name);
1.1 paf 728: }
1.45 paf 729:
1.267 paf 730: #ifndef DOXYGEN
731: class Add_header_attribute_info
732: {
733: public:
734: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
735: Request& r;
736: bool add_last_modified;
737: };
738: #endif
1.344 moko 739: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
740: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 741: return;
1.290 misha 742:
1.345 moko 743: if(name==LAST_MODIFIED_NAME_UPPER)
744: info->add_last_modified=false;
745:
1.316 misha 746: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 747:
1.267 paf 748: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 749: aname,
1.316 misha 750: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 751: );
1.267 paf 752: }
753:
1.366 moko 754: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 755: // transcode text body when "text/*" or simple result
756: String::C output(body_file.value_ptr(), body_file.value_size());
757: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 758: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 759:
1.311 misha 760: // prepare header: Content-Length
1.428 moko 761: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, pa_uitoa(output.length));
1.267 paf 762:
763: // send header
1.430 moko 764: SAPI::send_headers(r.sapi_info);
1.267 paf 765:
766: // send body
767: if(!header_only)
768: SAPI::send_body(r.sapi_info, output.str, output.length);
769: }
770:
771: #ifndef DOXYGEN
772: struct Range
773: {
1.396 moko 774: uint64_t start;
775: uint64_t end;
1.267 paf 776: };
777: #endif
1.396 moko 778:
779: #define UNSET ((uint64_t)-1)
780:
1.313 misha 781: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 782: const char *p = s->cstr();
783: if(s->starts_with("bytes="))
784: p += 6;
785: Range r;
786: while(*p){
1.396 moko 787: r.start = UNSET;
788: r.end = UNSET;
1.401 moko 789:
790: while(*p==' ' || *p=='\t') p++;
791:
1.267 paf 792: if(*p >= '0' && *p <= '9'){
1.416 moko 793: const char *n=p;
1.401 moko 794: while(*p>='0' && *p<='9') p++;
1.440 moko 795: r.start = pa_atoul(pa_strdup(n, p-n)); // ((uint64_t)-1) is treated as UNSET
1.267 paf 796: }
1.401 moko 797:
798: while(*p==' ' || *p=='\t') p++;
799:
1.267 paf 800: if(*p++ != '-') break;
1.401 moko 801:
802: while(*p==' ' || *p=='\t') p++;
803:
1.267 paf 804: if(*p >= '0' && *p <= '9'){
1.416 moko 805: const char *n=p;
1.401 moko 806: while(*p>='0' && *p<='9') p++;
1.440 moko 807: r.end = pa_atoul(pa_strdup(n, p-n)); // ((uint64_t)-1) is treated as UNSET
1.267 paf 808: }
1.401 moko 809:
810: while(*p==' ' || *p=='\t') p++;
811:
812: if(*p)
813: if(*p++ != ',') break;
814:
1.267 paf 815: ar += r;
816: }
1.101 paf 817: }
1.267 paf 818:
1.400 moko 819: struct Send_range_action_info {
820: Request *r;
821: uint64_t offset;
822: uint64_t part_length;
823: };
824:
825: static void send_range(struct stat& /*finfo*/, int f, const String& /*file_spec*/, void *context){
826: Send_range_action_info &info = *(Send_range_action_info*)context;
827:
1.430 moko 828: SAPI::send_headers(info.r->sapi_info);
1.400 moko 829: pa_lseek(f, info.offset, SEEK_SET);
830:
1.432 moko 831: char buf[FILE_BUFFER_SIZE];
1.400 moko 832: do{
1.432 moko 833: size_t to_read = info.part_length < FILE_BUFFER_SIZE ? (size_t)info.part_length : FILE_BUFFER_SIZE;
1.400 moko 834: size_t to_write = file_block_read(f, buf, to_read);
835:
836: if(to_write == 0)
837: break;
838:
839: size_t size = SAPI::send_body(info.r->sapi_info, buf, to_write);
840: if(size != to_write)
841: break;
842:
843: info.part_length -= to_write;
844: } while (info.part_length);
845: }
846:
1.396 moko 847: 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 848: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 849:
1.339 moko 850: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.396 moko 851: uint64_t offset=0;
852: uint64_t part_length=content_length;
1.401 moko 853:
854: if(range && content_length){
1.267 paf 855: Array<Range> ar;
856: parse_range(new String(range), ar);
1.396 moko 857: int count = ar.count();
1.267 paf 858: if(count == 1){
859: Range &rg = ar.get_ref(0);
1.401 moko 860:
861: if(rg.start == UNSET && rg.end == UNSET)
862: return SAPI::send_error(r.sapi_info, "", "416");
863:
1.396 moko 864: if(rg.start == UNSET && rg.end != UNSET){
1.440 moko 865: if(rg.end == 0)
866: return SAPI::send_error(r.sapi_info, "", "416");
1.401 moko 867: if(rg.end > content_length)
868: rg.end = content_length;
1.404 moko 869: rg.start = content_length - rg.end;
870: rg.end = content_length-1;
1.401 moko 871: } else if(rg.start != UNSET && rg.end == UNSET){
872: if(rg.start >= content_length)
873: return SAPI::send_error(r.sapi_info, "", "416");
1.267 paf 874: rg.end = content_length-1;
1.401 moko 875: } else {
876: if(rg.start >= content_length || rg.start > rg.end)
877: return SAPI::send_error(r.sapi_info, "", "416");
878: if(rg.end >= content_length)
879: rg.end = content_length-1;
1.267 paf 880: }
1.401 moko 881:
882: offset = rg.start;
883: part_length = rg.end-rg.start+1;
884:
1.400 moko 885: char buf[MAX_STRING];
886: snprintf(buf, MAX_STRING, "bytes %.15g-%.15g/%.15g", (double)rg.start, (double)rg.end, (double)content_length);
1.401 moko 887: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206");
1.315 misha 888: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.401 moko 889: } else {
1.410 moko 890: return SAPI::send_error(r.sapi_info, count ? "Multiple ranges are not supported" : "Invalid range", count ? "501" : "400");
1.267 paf 891: }
892: }
893:
1.428 moko 894: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, pa_uitoa(part_length));
1.267 paf 895:
1.314 misha 896: if(add_last_modified)
1.315 misha 897: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 898:
1.414 moko 899: if(header_only){
1.430 moko 900: SAPI::send_headers(r.sapi_info);
1.414 moko 901: } else {
1.400 moko 902: Send_range_action_info info = { &r, offset, part_length};
903: file_read_action_under_lock(r.full_disk_path(filename), "send", send_range, &info);
1.267 paf 904: }
905: }
906:
1.248 paf 907: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 908: // header: cookies
1.248 paf 909: cookie.output_result(sapi_info);
1.51 paf 910:
1.394 moko 911: // $.file and $.name (when body is real vfile)
912: Value* vfile = body_file->fields().get(response_body_file_name);
913: Value* vname = body_file->fields().get(name_name);
914:
915: const String* sfile = vfile ? &vfile->as_string() : NULL;
916: const String* sname = vname ? &vname->as_string() : NULL;
917:
918: if(sname && *sname == NONAME_DAT)
919: sname = NULL;
1.92 paf 920:
1.409 moko 921: // Content-Disposition, use $.name[<empty>] to avoid
1.394 moko 922: const String* disposition_name = sname ? sname->is_empty() ? NULL : sname : sfile;
923: if(disposition_name) {
1.420 moko 924: String& filename = *new String(pa_filename(disposition_name->cstr()), String::L_URI);
925: String& filename_asterisk = *new String(charsets.client().NAME(), String::L_CLEAN) << (*new String("''")) << filename;
926:
1.394 moko 927: VHash& hash=*new VHash();
928: hash.hash().put(value_name, new VString(as_attachment ? content_disposition_attachment : content_disposition_inline));
1.420 moko 929: hash.hash().put(content_disposition_filename_name, new VString(filename));
930: hash.hash().put(content_disposition_filename_name_asterisk, new VString(filename_asterisk));
1.394 moko 931: response.fields().put(content_disposition_name_upper, &hash);
932: }
1.267 paf 933:
1.394 moko 934: // _file_ content-type might be specified
935: Value* body_file_content_type = body_file->fields().get(content_type_name);
936: if(!body_file_content_type){
937: const String* scontent_name = sname && !sname->is_empty() ? sname : sfile;
938: if(scontent_name)
939: body_file_content_type = new VString(mime_type_of(scontent_name->cstr()));
1.267 paf 940: }
941:
1.312 misha 942: // set Content-Type
1.314 misha 943: if(body_file_content_type) {
944: // body file content type
1.344 moko 945: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 946: } else {
947: // default content type
1.344 moko 948: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 949: }
1.312 misha 950:
1.314 misha 951: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 952: Add_header_attribute_info info(*this);
1.281 paf 953: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 954:
1.394 moko 955: if(sfile) {
1.314 misha 956: // $response:[download|body][$.file[filespec]] -- optput specified file
1.367 moko 957: uint64_t content_length=0;
1.267 paf 958: time_t atime=0, mtime=0, ctime=0;
1.394 moko 959: file_stat(full_disk_path(*sfile), content_length, atime, mtime, ctime);
1.267 paf 960:
961: VDate* vdate=0;
962: if(Value* v=body_file->fields().get("mdate")) {
1.423 moko 963: vdate=dynamic_cast<VDate*>(v);
964: if(!vdate)
1.286 misha 965: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 966: }
967: if(!vdate)
1.346 moko 968: vdate=new VDate((pa_time_t)mtime);
1.62 paf 969:
1.399 moko 970: output_pieces(*this, header_only, *sfile, content_length, *vdate, info.add_last_modified);
1.267 paf 971: } else {
1.314 misha 972: if(body_file_content_type)
973: if(HashStringValue *hash=body_file_content_type->get_hash())
974: body_file_content_type=hash->get(value_name);
975:
1.366 moko 976: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 977: }
1.50 paf 978: }
1.104 paf 979:
1.328 misha 980: const String& Request::mime_type_of(const String* file_name) {
981: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
982: }
983:
1.248 paf 984: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 985: if(mime_types)
1.248 paf 986: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
987: String sext(++cext);
1.246 paf 988: Table::Action_options options;
1.342 moko 989: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 990: if(const String* result=mime_types->item(1))
991: return *result;
1.104 paf 992: else
1.395 moko 993: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 994: }
1.104 paf 995: }
1.248 paf 996:
997: return *new String("application/octet-stream");
998: }
999:
1.365 moko 1000: const String* Request::get_used_filespec(uint file_no){
1.318 misha 1001: if(file_no < file_list.count())
1002: return new String(file_list[file_no], String::L_TAINTED);
1003: return 0;
1004: }
1005:
1.248 paf 1006: #ifdef XML
1.280 paf 1007: xmlChar* Request::transcode(const String& s) {
1.248 paf 1008: return charsets.source().transcode(s);
1009: }
1010:
1.280 paf 1011: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 1012: return charsets.source().transcode(s);
1013: }
1014:
1.280 paf 1015: const String& Request::transcode(const xmlChar* s) {
1.248 paf 1016: return charsets.source().transcode(s);
1.233 paf 1017: }
1.248 paf 1018: #endif
1019:
1.442 moko 1020: VException::VException(Request& r, const Exception& e):
1021: fexception(e), fhandled(&VBool::get(false)),
1.444 ! moko 1022: ftrace_bottom(r.exception_trace.bottom_index()), ftrace_top(r.exception_trace.top_index()),
1.442 moko 1023: origin(Operation::Origin::create(0, 0, 0)), problem_source(e.problem_source()) {
1024: Request::Exception_trace& exception_trace=r.exception_trace;
1.248 paf 1025:
1.349 moko 1026: if(!exception_trace.is_empty()) {
1.442 moko 1027: Request::Trace bottom=exception_trace.bottom_value();
1.350 moko 1028: origin=bottom.origin();
1.443 moko 1029: if(!problem_source) // we don't know who trigged the bug
1.350 moko 1030: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
1.248 paf 1031: }
1.442 moko 1032: if(origin.file_no)
1033: ffile=r.file_list[origin.file_no];
1034: }
1035:
1036: Value* VException::handled() {
1037: return fhash ? fhash->get(Symbols::HANDLED_SYMBOL) : fhandled;
1038: }
1.248 paf 1039:
1.444 ! moko 1040: Table& VException::stack(Request& r) {
! 1041: if(ftrace_top==size_t(-1))
! 1042: throw Exception(PARSER_RUNTIME, 0, "exception stack used outside of context");
! 1043: return r.exception_trace.table(r, problem_source, ftrace_bottom, ftrace_top);
! 1044: }
! 1045:
1.442 moko 1046: Value* VException::get_element(const String& name) {
1047: if(!fhash) {
1048: if(SYMBOLS_EQ(name,HANDLED_SYMBOL))
1049: return fhandled;
1050: if(SYMBOLS_EQ(name,TYPE_SYMBOL))
1051: return fexception.type(true) ? new VString(*new String(fexception.type())) : 0;
1052: if(SYMBOLS_EQ(name,SOURCE_SYMBOL))
1053: return problem_source ? new VString(*problem_source) : 0;
1054: if(SYMBOLS_EQ(name,COMMENT_SYMBOL))
1055: return fexception.comment(true) ? new VString(fexception.comment()) : 0;
1056: if(SYMBOLS_EQ(name,FILE_SYMBOL))
1057: return origin.file_no ? new VString(ffile) : 0;
1058: if(SYMBOLS_EQ(name,LINENO_SYMBOL))
1059: return origin.file_no ? new VInt(1+origin.line) : 0;
1060: if(SYMBOLS_EQ(name,COLNO_SYMBOL))
1061: return origin.file_no ? new VInt(1+origin.col) : 0;
1062: if(SYMBOLS_EQ(name,FIELDS_SYMBOL))
1063: return this;
1064: }
1065: // Computed field names need not be interned: use ordinary hash lookup.
1066: return VHashReference::get_element(name);
1067: }
1068:
1069: const VJunction* VException::put_element(const String& name, Value* value) {
1070: if(!fhash && SYMBOLS_EQ(name,HANDLED_SYMBOL)) {
1071: fhandled=value;
1072: return 0;
1073: }
1074: return VHashReference::put_element(name, value);
1075: }
1076:
1077: HashStringValue& VException::hash() {
1078: if(fhash)
1079: return *fhash;
1080: HashStringValue& result=*new HashStringValue;
1.248 paf 1081:
1.442 moko 1082: if(const char* type=fexception.type(true))
1083: result.put(Symbols::TYPE_SYMBOL, new VString(*new String(type)));
1.349 moko 1084: if(problem_source)
1.442 moko 1085: result.put(Symbols::SOURCE_SYMBOL, new VString(*problem_source));
1086: if(origin.file_no) {
1087: result.put(Symbols::FILE_SYMBOL, new VString(ffile));
1088: result.put(Symbols::LINENO_SYMBOL, new VInt(1+origin.line));
1089: result.put(Symbols::COLNO_SYMBOL, new VInt(1+origin.col));
1090: }
1091: if(const char* comment=fexception.comment(true))
1092: result.put(Symbols::COMMENT_SYMBOL, new VString(comment));
1093: result.put(Symbols::HANDLED_SYMBOL, fhandled);
1.248 paf 1094:
1.442 moko 1095: fhash=&result;
1096: return result;
1.133 parser 1097: }
1.337 moko 1098:
1099: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
1100: frequest(arequest),
1101: fwhere(awhere),
1102: fname(aname),
1103: saved(awhere.get_element(aname))
1104: {
1105: Junction* junction;
1106: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1107: saved=0;
1108: frequest.put_element(fwhere, aname, awhat);
1109: }
1110:
1111: Temp_value_element::~Temp_value_element() {
1112: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1113: }
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