Annotation of parser3/src/main/pa_request.C, revision 1.403
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.374 moko 4: Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)
1.194 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.218 paf 6: */
1.55 paf 7:
1.69 paf 8: #include "pa_sapi.h"
1.53 paf 9: #include "pa_common.h"
1.372 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"
1.159 parser 36:
1.403 ! moko 37: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.402 2020/12/15 10:25:16 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 38:
1.248 paf 39: // consts
40:
1.269 paf 41: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 42:
1.82 paf 43: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 44: const char* DEFAULT_CONTENT_TYPE="text/html";
45:
1.369 moko 46: const uint LOOP_LIMIT=20000;
1.361 moko 47: const uint EXECUTE_RECOURSION_LIMIT=1000;
1.390 moko 48: const uint HTTPD_TIMEOUT=4;
1.369 moko 49: const size_t FILE_SIZE_LIMIT=512*1024*1024;
1.361 moko 50:
1.248 paf 51: // defines for globals
52:
53: #define MAIN_METHOD_NAME "main"
54: #define AUTO_METHOD_NAME "auto"
1.364 moko 55: #define USE_METHOD_NAME "use"
1.309 misha 56: #define AUTOUSE_METHOD_NAME "autouse"
1.364 moko 57:
1.248 paf 58: #define EXCEPTION_TYPE_PART_NAME "type"
59: #define EXCEPTION_SOURCE_PART_NAME "source"
60: #define EXCEPTION_COMMENT_PART_NAME "comment"
61:
1.364 moko 62: #define ORIGIN_KEY "origin"
63:
1.248 paf 64: // globals
65:
66: const String main_method_name(MAIN_METHOD_NAME);
67: const String auto_method_name(AUTO_METHOD_NAME);
1.364 moko 68: static const String use_method_name(USE_METHOD_NAME);
69: static const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 70:
1.248 paf 71: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
72: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
73: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
74: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
75:
1.364 moko 76: static const String origin_key(ORIGIN_KEY);
77:
1.369 moko 78: int pa_loop_limit=LOOP_LIMIT;
1.361 moko 79: int pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.390 moko 80: int pa_httpd_timeout=HTTPD_TIMEOUT;
1.369 moko 81: size_t pa_file_size_limit=FILE_SIZE_LIMIT;
1.361 moko 82:
1.248 paf 83: // defines for statics
84:
85: #define MIME_TYPES_NAME "MIME-TYPES"
86: #define CLASS_PATH_NAME "CLASS_PATH"
87:
1.344 moko 88: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
89: #define BODY_NAME_UPPER "BODY"
90:
1.248 paf 91: // statics
92:
93: static const String main_class_name(MAIN_CLASS_NAME);
94: static const String mime_types_name(MIME_TYPES_NAME);
1.395 moko 95: static const String class_path_name(CLASS_PATH_NAME);
1.361 moko 96:
1.395 moko 97: static const String charsets_name("CHARSETS");
98: static const String strict_vars_name("STRICT-VARS");
99: static const String prototype_name("OBJECT-PROTOTYPE");
100: static const String limits_name("LIMITS");
101: static const String loop_limit_name("max_loop");
102: static const String recoursion_limit_name("max_recoursion");
103: static const String file_size_limit_name("max_file_size");
104: static const String lock_wait_timeout_name("lock_wait_timeout");
105: static const String httpd_name("HTTPD");
106: static const String httpd_timeout_name("timeout");
1.402 moko 107: static const String httpd_mode_name("mode");
1.395 moko 108:
109: static const String conf_method_name("conf");
110: static const String post_process_method_name("postprocess");
111: static const String response_body_file_name("file");
1.248 paf 112:
1.344 moko 113: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
114: static const String body_name_upper(BODY_NAME_UPPER);
115:
116: // more static
117:
118: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
119: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
1.392 moko 120: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.344 moko 121: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
122:
1.248 paf 123: // defines
1.82 paf 124:
1.344 moko 125: #define CHARSET_NAME_UPPER "CHARSET"
126: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
127:
1.233 paf 128: // op.C
1.248 paf 129: VStateless_class& VClassMAIN_create();
1.123 paf 130:
1.157 parser 131: //
1.248 paf 132: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 133: String::Language adefault_lang):
1.248 paf 134: // private
135: anti_endless_execute_recoursion(0),
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
1.347 moko 170: file_list+="UNKNOWN";
171: file_list+="-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:
1.356 moko 237: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 238: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 239: }
1.356 moko 240:
1.395 moko 241:
242: #define CONF_OPTION(config, name, code, exception_name) \
243: if(config) \
244: if(Value* option=config->get_element(name)) { \
245: if(option->is_evaluated_expr()) { \
246: code; \
247: } else \
248: throw Exception(PARSER_RUNTIME, 0, "$main:" exception_name, name.cstr()); \
249: }
250:
1.248 paf 251: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 252: if(configure_admin_done)
1.356 moko 253: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 254: configure_admin_done=true;
255:
1.227 paf 256: // charsets must only be specified in method_frame config
1.208 paf 257: // so that users would not interfere
258:
259: /* $MAIN:CHARSETS[
260: $.charsetname1[/full/path/to/charset/file.cfg]
261: ...
262: ]
263: */
1.308 misha 264: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 265: if(!vcharsets->is_string()) {
1.248 paf 266: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 267: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 268: else
1.395 moko 269: throw Exception(PARSER_RUNTIME, 0, "$main:%s must be hash", charsets_name.cstr());
1.342 moko 270: }
1.208 paf 271: }
272:
1.330 moko 273: #ifdef STRICT_VARS
1.332 moko 274: VVoid::strict_vars=false;
1.330 moko 275: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
276: if(strict_vars->is_bool())
277: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 278: else
1.395 moko 279: throw Exception(PARSER_RUNTIME, 0, "$main:%s must be bool", strict_vars_name.cstr());
1.357 moko 280: }
281: #endif
282:
283: #ifdef OBJECT_PROTOTYPE
284: VClass::prototype=true;
285: if(Value* prototype=conf_class.get_element(prototype_name)) {
286: if(prototype->is_bool())
287: VClass::prototype=prototype->as_bool();
288: else
1.395 moko 289: throw Exception(PARSER_RUNTIME, 0, "$main:%s must be bool", prototype_name.cstr());
1.330 moko 290: }
291: #endif
292:
1.362 moko 293: Value* limits=conf_class.get_element(limits_name);
294:
1.361 moko 295: pa_loop_limit=LOOP_LIMIT;
1.395 moko 296: CONF_OPTION(limits, loop_limit_name, {
297: pa_loop_limit=option->as_int();
298: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
299: }, "LIMITS.%s must be int");
1.361 moko 300:
301: pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.395 moko 302: CONF_OPTION(limits, recoursion_limit_name, {
303: pa_execute_recoursion_limit=option->as_int();
304: if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
305: }, "LIMITS.%s must be int");
1.390 moko 306:
1.369 moko 307: pa_file_size_limit=FILE_SIZE_LIMIT;
1.395 moko 308: CONF_OPTION(limits, file_size_limit_name, {
309: double limit=option->as_double();
310: if(limit >= (double)SSIZE_MAX)
311: throw Exception(PARSER_RUNTIME, 0, "$main:LIMITS.%s must be less then %.15g", file_size_limit_name.cstr(), (double)SSIZE_MAX);
312: pa_file_size_limit=(size_t)limit;
313: if(pa_file_size_limit==0)
314: pa_file_size_limit=SSIZE_MAX;
315: }, "LIMITS.%s must be number");
1.361 moko 316:
1.372 moko 317: pa_lock_attempts=PA_LOCK_ATTEMPTS;
1.395 moko 318: CONF_OPTION(limits, lock_wait_timeout_name, {
319: double limit=option->as_double();
320: if(limit >= 3600*24)
321: throw Exception(PARSER_RUNTIME, 0, "$main:LIMITS.%s must be less then %d", lock_wait_timeout_name.cstr(), 3600*24);
322: pa_lock_attempts=(unsigned int)(limit*2)+1;
323: }, "LIMITS.%s must be number");
324:
325: Value* httpd=conf_class.get_element(httpd_name);
326:
327: pa_httpd_timeout=HTTPD_TIMEOUT;
328: CONF_OPTION(httpd, httpd_timeout_name, {
329: pa_httpd_timeout=option->as_int();
330: if(pa_httpd_timeout==0) pa_httpd_timeout=INT_MAX;
331: }, "HTTPD.%s must be int");
1.372 moko 332:
1.403 ! moko 333: if(httpd)
! 334: if(Value* option=httpd->get_element( httpd_mode_name)) {
! 335: if(option->get_junction())
! 336: throw Exception(PARSER_RUNTIME, 0, "$main:HTTPD:mode must be string");
! 337: HTTPD_Server::set_mode(option->as_string());
! 338: }
1.402 moko 339:
1.227 paf 340: // configure method_frame options
1.208 paf 341: // until someone with less privileges have overriden them
1.248 paf 342: methoded_array().configure_admin(*this);
1.208 paf 343: }
1.150 parser 344:
1.349 moko 345: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
346:
1.269 paf 347: #define PA_URI_FORMAT "%s: "
1.349 moko 348: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
349:
1.269 paf 350: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
351: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 352:
353: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
354: #define PA_SOURCE_VALUE details.problem_source->cstr(),
355:
356: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
357: snprintf(result, MAX_STRING, \
358: PA_URI_FORMAT \
359: f1 f2 \
360: PA_COMMENT_TYPE_FORMAT, \
361: request_info.uri, \
362: v1 v2 \
363: e.comment(), e.type() \
364: );
365:
1.269 paf 366: char* result=new(PointerFreeGC) char[MAX_STRING];
367:
368: if(details.problem_source) { // do we know the guy?
1.349 moko 369: if(details.origin.file_no) // do whe know where he came from?
370: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
371: else
372: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
373: } else {
374: if(details.origin.file_no) // do whe know where he came from?
375: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
376: else
377: EXCEPTION_CSTR(,,,)
378: }
1.269 paf 379:
380: return result;
381: }
1.272 paf 382:
383: void Request::configure() {
384: // configure admin options if not configured yet
385: if(!configure_admin_done)
386: configure_admin(main_class);
387:
388: // configure not-admin=user options
389: methoded_array().configure_user(*this);
390:
391: // $MAIN:MIME-TYPES
1.308 misha 392: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 393: if(Table *table=element->get_table())
1.395 moko 394: mime_types=table;
1.272 paf 395: }
1.64 paf 396: /**
397: load MAIN class, execute @main.
398: MAIN class consists of all the auto.p files we'd manage to find
399: plus
400: the file user requested us to process
401: all located classes become children of one another,
402: composing class we name 'MAIN'
1.180 paf 403:
404: @test log stack trace
405:
1.64 paf 406: */
1.390 moko 407: void Request::core(const char* config_filespec, bool header_only, const String &amain_method_name) {
1.169 parser 408: try {
1.211 paf 409: // loading config
1.384 moko 410: if(config_filespec)
1.387 moko 411: use_file_directly(*new String(config_filespec));
1.8 paf 412:
1.338 moko 413: // filling mail received
414: mail.fill_received(*this);
415:
1.272 paf 416: try {
417: // compile requested file
1.389 moko 418: if(request_info.path_translated)
419: use_file_directly(*new String(request_info.path_translated, String::L_TAINTED), true, true /* load auto.p files */);
1.272 paf 420: configure();
421: } catch(...) {
422: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
423: rethrow;
424: }
1.25 paf 425:
426: // execute @main[]
1.391 moko 427: const String* body_string=amain_method_name.is_empty() ? &String::Empty : execute_method(main_class, amain_method_name);
1.41 paf 428: if(!body_string)
1.390 moko 429: throw Exception(PARSER_RUNTIME, 0, "'%s' method not found", amain_method_name.cstr());
1.79 paf 430:
1.250 paf 431: // extract response body
1.344 moko 432: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 433: bool as_attachment=body_value!=0;
434: if(!body_value)
1.344 moko 435: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 436: if(!body_value)
437: body_value=new VString(*body_string); // just result of ^main[]
438:
1.119 paf 439: // @postprocess
1.383 moko 440: if(const Method *method=main_class.get_method(post_process_method_name)) {
441: // preparing to pass parameters to
442: // @postprocess[data]
443: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
444: frame.store_params(&body_value, 1);
445: call(frame);
446: body_value=&frame.result();
447: });
448: }
1.90 paf 449:
1.303 misha 450: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 451:
1.45 paf 452: // OK. write out the result
1.248 paf 453: output_result(body_file, header_only, as_attachment);
1.183 paf 454:
1.171 parser 455: } catch(const Exception& e) { // request handling problem
1.268 paf 456: try {
1.76 paf 457: // we're returning not result, but error explanation
1.269 paf 458:
459: Request::Exception_details details=get_details(e);
460: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 461:
462: // reset language to default
463: flang=fdefault_lang;
464:
465: // reset response
466: response.fields().clear();
467:
468: // this is what we'd return in $response:body
469: const String* body_string=0;
470:
471: // maybe we'd be lucky enough as to report an error
472: // in a gracefull way...
1.383 moko 473: if(const Method *method=main_class.get_method(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
474: // preparing to pass parameters to
475: // @unhandled_exception[exception;stack]
476:
477: // $stack[^table::create{name file lineno colno}]
478: Table::columns_type stack_trace_columns(new ArrayString);
479: *stack_trace_columns+=new String("name");
480: *stack_trace_columns+=new String("file");
481: *stack_trace_columns+=new String("lineno");
482: *stack_trace_columns+=new String("colno");
483: Table& stack_trace=*new Table(stack_trace_columns);
484: if(!exception_trace.is_empty()/*signed!*/)
485: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
486: Trace trace=exception_trace.get(i);
487: Table::element_type row(new ArrayString);
488:
489: *row+=trace.name(); // name column
490: Operation::Origin origin=trace.origin();
491: if(origin.file_no) {
492: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
493: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
494: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
495: }
496: stack_trace+=row;
1.233 paf 497: }
1.383 moko 498:
499: // future $response:body=
500: // execute ^unhandled_exception[exception;stack]
501: 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)
502:
503: Value *params[]={&details.vhash, new VTable(&stack_trace)};
504: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
505: frame.store_params(params, 2);
506: call(frame);
507: body_string=&frame.result().as_string();
508: });
1.258 paf 509: }
510:
1.273 paf 511: // conditionally log it
512: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
513: if(!vhandled || !vhandled->as_bool()) {
514: SAPI::log(sapi_info, "%s", exception_cstr);
515: }
516:
1.381 moko 517: if(body_string) { // could report an error beautifully?
518: VString body_vstring(*body_string);
519: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
520: // write it out the error
521: output_result(body_file, header_only, false);
522: } else {
523: // doing that ugly
524: SAPI::send_error(sapi_info, exception_cstr, !strcmp(e.type(), "file.missing") ? "404" : "500");
525: }
1.287 misha 526:
1.273 paf 527: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 528: Request::Exception_details details=get_details(e);
529: const char* exception_cstr=get_exception_cstr(e, details);
1.380 moko 530: // unconditionally log the beast in exception handler
531: throw Exception(0, 0, "Unhandled exception in %s", exception_cstr);
1.268 paf 532: }
1.1 paf 533: }
534: }
535:
1.266 paf 536: uint Request::register_file(String::Body file_spec) {
1.248 paf 537: file_list+=file_spec;
538: return file_list.count()-1;
539: }
540:
1.387 moko 541: void Request::use_file_directly(const String& file_spec, bool fail_on_file_absence, bool with_auto_p) {
1.73 paf 542: // cyclic dependence check
1.318 misha 543: if(used_files.get(file_spec))
1.248 paf 544: return;
1.318 misha 545: used_files.put(file_spec, true);
546:
1.385 moko 547: if(!fail_on_file_absence && !entry_exists(file_spec)) // ignore file absence if asked for
548: return;
1.318 misha 549:
1.386 moko 550: if(with_auto_p) {
551: // loading auto.p files from document_root/..
552: // to the one beside requested file.
553: // all assigned bases from upper dir
554: const char* target=file_spec.cstr();
555:
556: // all relative paths are calculated from main document
557: request_info.path_translated=target;
558:
559: const char* after=target;
560: size_t drlen=strlen(request_info.document_root);
561: if(memcmp(after, request_info.document_root, drlen)==0) {
562: after+=drlen;
563: if(after[-1]=='/')
564: --after;
565: }
566:
567: while(const char* before=strchr(after, '/')) {
568: String& sfile_spec=*new String;
569: if(after!=target) {
570: sfile_spec.append_strdup(target, before-target, String::L_CLEAN);
571: sfile_spec << "/" AUTO_FILE_NAME;
572:
1.387 moko 573: use_file_directly(sfile_spec, false /*ignore absence, sole user*/);
1.386 moko 574: }
575: for(after=before+1;*after=='/';after++);
576: }
577: }
578:
1.385 moko 579: if(const char* source=file_read_text(charsets, file_spec, true))
1.387 moko 580: use_buf(main_class, source, 0, register_file(file_spec));
1.318 misha 581: }
582:
583:
1.387 moko 584: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, bool with_auto_p) {
1.326 misha 585: if(file_name.is_empty())
1.366 moko 586: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 587:
1.318 misha 588: const String* filespec=0;
589:
590: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.388 moko 591: filespec=&full_disk_path(file_name);
1.318 misha 592: else if(use_filespec){ // search in current dir first
1.331 misha 593: size_t last_slash_pos=use_filespec->strrpbrk("/");
594: if(last_slash_pos!=STRING_NOT_FOUND)
595: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 596: }
597:
598: if(!filespec){
599: // prevent multiple scan CLASS_PATH for searching one file
600: if(searched_along_class_path.get(file_name))
601: return;
602: searched_along_class_path.put(file_name, true);
1.308 misha 603: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 604: if(element->is_string()) {
1.388 moko 605: filespec=file_exist(full_disk_path(element->as_string()), file_name); // found at class_path?
1.233 paf 606: } else if(Table *table=element->get_table()) {
1.318 misha 607: for(size_t i=table->count(); i--; ) {
1.248 paf 608: const String& path=*(*table->get(i))[0];
1.388 moko 609: if(filespec=file_exist(full_disk_path(path), file_name))
1.233 paf 610: break; // found along class_path
611: }
612: } else
1.366 moko 613: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 614: if(!filespec)
1.395 moko 615: throw Exception(PARSER_RUNTIME, &file_name, "not found along $main:" CLASS_PATH_NAME);
1.318 misha 616: } else
1.395 moko 617: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $main:" CLASS_PATH_NAME " were specified");
1.148 parser 618: }
1.230 paf 619:
1.387 moko 620: use_file_directly(*filespec, true, with_auto_p);
1.16 paf 621: }
622:
1.364 moko 623: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 624: static String use("USE");
625: try {
1.364 moko 626: static VHash* voptions=new VHash();
1.376 moko 627: if(const Method *method=main_class.get_method(use_method_name)){
1.364 moko 628: Value *params[]={new VString(file_name), voptions};
629: voptions->hash().put(origin_key, new VString(*use_filespec));
630:
631: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
632: frame.store_params(params, 2);
633: // we don't need the result
634: call(frame);
635: });
636: }
1.349 moko 637: } catch (...) {
638: exception_trace.push(Trace(&use, origin));
639: rethrow;
640: }
641: }
1.208 paf 642:
1.358 moko 643: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
644: // temporary zero @conf to avoid it second execution
1.248 paf 645: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 646: // temporary zero @auto to avoid it second execution
1.248 paf 647: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 648:
1.295 misha 649: // compile loaded classes
650: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 651:
1.248 paf 652: VString* vfilespec=
653: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 654:
655: for(size_t i=0; i<cclasses.count(); i++){
656: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 657:
658: // locate and execute possible @conf[] static
1.382 moko 659: if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
1.295 misha 660: configure_admin(cclass/*, executed.method->name*/);
661:
662: // locate and execute possible @auto[] static
1.382 moko 663: execute_method_if_exists(cclass, auto_method_name, vfilespec);
1.336 moko 664:
665: cclass.enable_default_setter();
1.295 misha 666: }
1.19 paf 667: }
668:
1.248 paf 669: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 670: char *hpath=pa_strdup(apath);
1.248 paf 671: String& result=*new String;
672: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 673: result << hpath << "/";
1.248 paf 674: result << relative_name;
675: return result;
1.19 paf 676: }
677:
1.388 moko 678: const String& Request::full_disk_path(const String& relative_name) {
1.217 paf 679: if(relative_name.first_char()=='/') {
1.341 moko 680: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 681: result << relative_name;
1.19 paf 682: return result;
1.389 moko 683: }
684: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 685: #ifdef WIN32
1.389 moko 686: || relative_name.pos(":")==1 // DRIVE:
687: || relative_name.starts_with("\\\\") // UNC1
688: || relative_name.starts_with("//") // UNC2
1.247 paf 689: #endif
1.389 moko 690: )
691: return relative_name;
692:
693: return relative(request_info.path_translated ? request_info.path_translated : request_info.document_root, relative_name);
1.1 paf 694: }
1.45 paf 695:
1.267 paf 696: #ifndef DOXYGEN
697: class Add_header_attribute_info
698: {
699: public:
700: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
701: Request& r;
702: bool add_last_modified;
703: };
704: #endif
1.344 moko 705: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
706: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 707: return;
1.290 misha 708:
1.345 moko 709: if(name==LAST_MODIFIED_NAME_UPPER)
710: info->add_last_modified=false;
711:
1.316 misha 712: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 713:
1.267 paf 714: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 715: aname,
1.316 misha 716: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 717: );
1.267 paf 718: }
719:
1.366 moko 720: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 721: // transcode text body when "text/*" or simple result
722: String::C output(body_file.value_ptr(), body_file.value_size());
723: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 724: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 725:
1.311 misha 726: // prepare header: Content-Length
727: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 728:
729: // send header
730: SAPI::send_header(r.sapi_info);
731:
732: // send body
733: if(!header_only)
734: SAPI::send_body(r.sapi_info, output.str, output.length);
735: }
736:
737: #ifndef DOXYGEN
738: struct Range
739: {
1.396 moko 740: uint64_t start;
741: uint64_t end;
1.267 paf 742: };
743: #endif
1.396 moko 744:
745: #define UNSET ((uint64_t)-1)
746:
1.313 misha 747: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 748: const char *p = s->cstr();
749: if(s->starts_with("bytes="))
750: p += 6;
751: Range r;
752: while(*p){
1.396 moko 753: r.start = UNSET;
754: r.end = UNSET;
1.401 moko 755:
756: while(*p==' ' || *p=='\t') p++;
757:
1.267 paf 758: if(*p >= '0' && *p <= '9'){
1.401 moko 759: const char *s=p;
760: while(*p>='0' && *p<='9') p++;
761: r.start = pa_atoul(pa_strdup(s,p-s));
1.267 paf 762: }
1.401 moko 763:
764: while(*p==' ' || *p=='\t') p++;
765:
1.267 paf 766: if(*p++ != '-') break;
1.401 moko 767:
768: while(*p==' ' || *p=='\t') p++;
769:
1.267 paf 770: if(*p >= '0' && *p <= '9'){
1.401 moko 771: const char *s=p;
772: while(*p>='0' && *p<='9') p++;
773: r.end = pa_atoul(pa_strdup(s,p-s));
1.267 paf 774: }
1.401 moko 775:
776: while(*p==' ' || *p=='\t') p++;
777:
778: if(*p)
779: if(*p++ != ',') break;
780:
1.267 paf 781: ar += r;
782: }
1.101 paf 783: }
1.267 paf 784:
1.400 moko 785: struct Send_range_action_info {
786: Request *r;
787: uint64_t offset;
788: uint64_t part_length;
789: };
790:
791: static void send_range(struct stat& /*finfo*/, int f, const String& /*file_spec*/, void *context){
792: Send_range_action_info &info = *(Send_range_action_info*)context;
793:
794: pa_lseek(f, info.offset, SEEK_SET);
795:
796: const size_t BUFSIZE = 128*0x400;
797: char buf[BUFSIZE];
798: do{
799: size_t to_read = info.part_length < BUFSIZE ? (size_t)info.part_length : BUFSIZE;
800: size_t to_write = file_block_read(f, buf, to_read);
801:
802: if(to_write == 0)
803: break;
804:
805: size_t size = SAPI::send_body(info.r->sapi_info, buf, to_write);
806: if(size != to_write)
807: break;
808:
809: info.part_length -= to_write;
810: } while (info.part_length);
811: }
812:
1.396 moko 813: 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 814: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 815:
1.339 moko 816: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.396 moko 817: uint64_t offset=0;
818: uint64_t part_length=content_length;
1.401 moko 819:
820: if(range && content_length){
1.267 paf 821: Array<Range> ar;
822: parse_range(new String(range), ar);
1.396 moko 823: int count = ar.count();
1.267 paf 824: if(count == 1){
825: Range &rg = ar.get_ref(0);
1.401 moko 826:
827: if(rg.start == UNSET && rg.end == UNSET)
828: return SAPI::send_error(r.sapi_info, "", "416");
829:
1.396 moko 830: if(rg.start == UNSET && rg.end != UNSET){
1.401 moko 831: if(rg.end > content_length)
832: rg.end = content_length;
833: rg = { content_length - rg.end, content_length-1 };
834: } else if(rg.start != UNSET && rg.end == UNSET){
835: if(rg.start >= content_length)
836: return SAPI::send_error(r.sapi_info, "", "416");
1.267 paf 837: rg.end = content_length-1;
1.401 moko 838: } else {
839: if(rg.start >= content_length || rg.start > rg.end)
840: return SAPI::send_error(r.sapi_info, "", "416");
841: if(rg.end >= content_length)
842: rg.end = content_length-1;
1.267 paf 843: }
1.401 moko 844:
845: offset = rg.start;
846: part_length = rg.end-rg.start+1;
847:
1.400 moko 848: char buf[MAX_STRING];
849: snprintf(buf, MAX_STRING, "bytes %.15g-%.15g/%.15g", (double)rg.start, (double)rg.end, (double)content_length);
1.401 moko 850: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206");
1.315 misha 851: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.401 moko 852: } else {
853: return SAPI::send_error(r.sapi_info, count ? "Multiple ranges not supported" : "Invalid range", count ? "501" : "400");
1.267 paf 854: }
855: }
856:
1.398 moko 857: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format((double)part_length, "%.15g"));
1.267 paf 858:
1.314 misha 859: if(add_last_modified)
1.315 misha 860: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 861:
1.267 paf 862: SAPI::send_header(r.sapi_info);
863:
864: if(!header_only){
1.400 moko 865: Send_range_action_info info = { &r, offset, part_length};
866: file_read_action_under_lock(r.full_disk_path(filename), "send", send_range, &info);
1.267 paf 867: }
868: }
869:
1.248 paf 870: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 871: // header: cookies
1.248 paf 872: cookie.output_result(sapi_info);
1.51 paf 873:
1.394 moko 874: // $.file and $.name (when body is real vfile)
875: Value* vfile = body_file->fields().get(response_body_file_name);
876: Value* vname = body_file->fields().get(name_name);
877:
878: const String* sfile = vfile ? &vfile->as_string() : NULL;
879: const String* sname = vname ? &vname->as_string() : NULL;
880:
881: if(sname && *sname == NONAME_DAT)
882: sname = NULL;
1.92 paf 883:
1.314 misha 884: // Content-Disposition
1.394 moko 885: const String* disposition_name = sname ? sname->is_empty() ? NULL : sname : sfile;
886: if(disposition_name) {
887: VHash& hash=*new VHash();
888: hash.hash().put(value_name, new VString(as_attachment ? content_disposition_attachment : content_disposition_inline));
889: hash.hash().put(content_disposition_filename_name, new VString(*new String(*disposition_name, String::L_HTTP_HEADER)));
890: response.fields().put(content_disposition_name_upper, &hash);
891: }
1.267 paf 892:
1.394 moko 893: // _file_ content-type might be specified
894: Value* body_file_content_type = body_file->fields().get(content_type_name);
895: if(!body_file_content_type){
896: const String* scontent_name = sname && !sname->is_empty() ? sname : sfile;
897: if(scontent_name)
898: body_file_content_type = new VString(mime_type_of(scontent_name->cstr()));
1.267 paf 899: }
900:
1.312 misha 901: // set Content-Type
1.314 misha 902: if(body_file_content_type) {
903: // body file content type
1.344 moko 904: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 905: } else {
906: // default content type
1.344 moko 907: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 908: }
1.312 misha 909:
1.314 misha 910: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 911: Add_header_attribute_info info(*this);
1.281 paf 912: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 913:
1.394 moko 914: if(sfile) {
1.314 misha 915: // $response:[download|body][$.file[filespec]] -- optput specified file
1.367 moko 916: uint64_t content_length=0;
1.267 paf 917: time_t atime=0, mtime=0, ctime=0;
1.394 moko 918: file_stat(full_disk_path(*sfile), content_length, atime, mtime, ctime);
1.267 paf 919:
920: VDate* vdate=0;
921: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 922: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 923: vdate=static_cast<VDate*>(vdatep);
924: else
1.286 misha 925: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 926: }
927: if(!vdate)
1.346 moko 928: vdate=new VDate((pa_time_t)mtime);
1.62 paf 929:
1.399 moko 930: output_pieces(*this, header_only, *sfile, content_length, *vdate, info.add_last_modified);
1.267 paf 931: } else {
1.314 misha 932: if(body_file_content_type)
933: if(HashStringValue *hash=body_file_content_type->get_hash())
934: body_file_content_type=hash->get(value_name);
935:
1.366 moko 936: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 937: }
1.50 paf 938: }
1.104 paf 939:
1.328 misha 940: const String& Request::mime_type_of(const String* file_name) {
941: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
942: }
943:
1.248 paf 944: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 945: if(mime_types)
1.248 paf 946: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
947: String sext(++cext);
1.246 paf 948: Table::Action_options options;
1.342 moko 949: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 950: if(const String* result=mime_types->item(1))
951: return *result;
1.104 paf 952: else
1.395 moko 953: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 954: }
1.104 paf 955: }
1.248 paf 956:
957: return *new String("application/octet-stream");
958: }
959:
1.365 moko 960: const String* Request::get_used_filespec(uint file_no){
1.318 misha 961: if(file_no < file_list.count())
962: return new String(file_list[file_no], String::L_TAINTED);
963: return 0;
964: }
965:
1.248 paf 966: #ifdef XML
1.280 paf 967: xmlChar* Request::transcode(const String& s) {
1.248 paf 968: return charsets.source().transcode(s);
969: }
970:
1.280 paf 971: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 972: return charsets.source().transcode(s);
973: }
974:
1.280 paf 975: const String& Request::transcode(const xmlChar* s) {
1.248 paf 976: return charsets.source().transcode(s);
1.233 paf 977: }
1.248 paf 978: #endif
979:
1.349 moko 980: Request::Exception_details Request::get_details(const Exception& e) {
981: const String* problem_source=e.problem_source();
982: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
983: Operation::Origin origin={0, 0, 0};
1.248 paf 984:
1.349 moko 985: if(!exception_trace.is_empty()) {
986: Trace bottom=exception_trace.bottom_value();
1.350 moko 987: origin=bottom.origin();
988: if(!problem_source) { // we don't know who trigged the bug
989: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
990: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
991: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 992: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
993: } else {
994: // stack top contains not us, leaving intact to help ^throw
1.279 paf 995: }
1.248 paf 996: }
997:
998: // $.type
999: if(const char* type=e.type(true))
1000: hash.put(exception_type_part_name, new VString(*new String(type)));
1001:
1002: // $.source
1.349 moko 1003: if(problem_source)
1004: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 1005:
1.349 moko 1006: // $.file $.lineno $.colno
1007: if(origin.file_no){
1.347 moko 1008: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1009: hash.put("lineno", new VInt(1+origin.line));
1010: hash.put("colno", new VInt(1+origin.col));
1.248 paf 1011: }
1012:
1013: // $.comment
1014: if(const char* comment=e.comment(true))
1.349 moko 1015: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 1016:
1017: // $.handled(0)
1.299 misha 1018: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 1019:
1.349 moko 1020: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 1021: }
1.337 moko 1022:
1023: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
1024: frequest(arequest),
1025: fwhere(awhere),
1026: fname(aname),
1027: saved(awhere.get_element(aname))
1028: {
1029: Junction* junction;
1030: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1031: saved=0;
1032: frequest.put_element(fwhere, aname, awhat);
1033: }
1034:
1035: Temp_value_element::~Temp_value_element() {
1036: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1037: }
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