Annotation of parser3/src/main/pa_request.C, revision 1.407
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.405 moko 4: Copyright (c) 2001-2020 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:
1.407 ! moko 37: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.406 2020/12/16 19:27:40 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:
1.407 ! moko 383: Table &Request::Exception_trace::table(Request &r){
! 384: // $stack[^table::create{name file lineno colno}]
! 385: Table::columns_type stack_trace_columns(new ArrayString);
! 386: *stack_trace_columns+=new String("name");
! 387: *stack_trace_columns+=new String("file");
! 388: *stack_trace_columns+=new String("lineno");
! 389: *stack_trace_columns+=new String("colno");
! 390: Table& stack_trace=*new Table(stack_trace_columns);
! 391:
! 392: if(!is_empty()/*signed!*/)
! 393: for(size_t i=bottom_index(); i<top_index(); i++) {
! 394: Trace trace=get(i);
! 395: Table::element_type row(new ArrayString);
! 396:
! 397: *row+=trace.name(); // name column
! 398: Operation::Origin origin=trace.origin();
! 399: if(origin.file_no) {
! 400: *row+=new String(r.file_list[origin.file_no], String::L_TAINTED); // 'file' column
! 401: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
! 402: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
! 403: }
! 404: stack_trace+=row;
! 405: }
! 406:
! 407: return stack_trace;
! 408: }
! 409:
1.272 paf 410: void Request::configure() {
411: // configure admin options if not configured yet
412: if(!configure_admin_done)
413: configure_admin(main_class);
414:
415: // configure not-admin=user options
416: methoded_array().configure_user(*this);
417:
418: // $MAIN:MIME-TYPES
1.308 misha 419: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 420: if(Table *table=element->get_table())
1.395 moko 421: mime_types=table;
1.272 paf 422: }
1.64 paf 423: /**
424: load MAIN class, execute @main.
425: MAIN class consists of all the auto.p files we'd manage to find
426: plus
427: the file user requested us to process
428: all located classes become children of one another,
429: composing class we name 'MAIN'
1.180 paf 430:
431: @test log stack trace
432:
1.64 paf 433: */
1.390 moko 434: void Request::core(const char* config_filespec, bool header_only, const String &amain_method_name) {
1.406 moko 435: VFile* body_file=NULL;
436: bool as_attachment=false;
437:
1.169 parser 438: try {
1.211 paf 439: // loading config
1.384 moko 440: if(config_filespec)
1.387 moko 441: use_file_directly(*new String(config_filespec));
1.8 paf 442:
1.338 moko 443: // filling mail received
444: mail.fill_received(*this);
445:
1.272 paf 446: try {
447: // compile requested file
1.389 moko 448: if(request_info.path_translated)
449: use_file_directly(*new String(request_info.path_translated, String::L_TAINTED), true, true /* load auto.p files */);
1.272 paf 450: configure();
451: } catch(...) {
452: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
453: rethrow;
454: }
1.25 paf 455:
456: // execute @main[]
1.391 moko 457: const String* body_string=amain_method_name.is_empty() ? &String::Empty : execute_method(main_class, amain_method_name);
1.41 paf 458: if(!body_string)
1.390 moko 459: throw Exception(PARSER_RUNTIME, 0, "'%s' method not found", amain_method_name.cstr());
1.79 paf 460:
1.250 paf 461: // extract response body
1.344 moko 462: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.406 moko 463: as_attachment=body_value!=0;
1.250 paf 464: if(!body_value)
1.344 moko 465: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 466: if(!body_value)
467: body_value=new VString(*body_string); // just result of ^main[]
468:
1.119 paf 469: // @postprocess
1.383 moko 470: if(const Method *method=main_class.get_method(post_process_method_name)) {
471: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
472: frame.store_params(&body_value, 1);
473: call(frame);
474: body_value=&frame.result();
475: });
476: }
1.90 paf 477:
1.406 moko 478: body_file=body_value->as_vfile(flang, &charsets);
1.183 paf 479:
1.171 parser 480: } catch(const Exception& e) { // request handling problem
1.268 paf 481: try {
1.407 ! moko 482: // we're returning not result, but error explanation
1.269 paf 483:
1.407 ! moko 484: Request::Exception_details details=get_details(e);
! 485: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 486:
1.407 ! moko 487: // reset language to default
! 488: flang=fdefault_lang;
! 489: // reset response
! 490: response.fields().clear();
! 491:
! 492: // this is what we'd return in $response:body
! 493: const String* body_string=0;
! 494:
! 495: // maybe we'd be lucky enough as to report an error in a gracefull way...
! 496: if(const Method *method=main_class.get_method(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
! 497: // preparing parameters to @unhandled_exception[exception;stack]
! 498:
! 499: Table& stack_trace=exception_trace.table(*this);
! 500: 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)
! 501:
! 502: Value *params[]={&details.vhash, new VTable(&stack_trace)};
! 503: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
! 504: frame.store_params(params, 2);
! 505: call(frame);
! 506: body_string=&frame.result().as_string();
! 507: });
! 508: }
1.383 moko 509:
1.407 ! moko 510: // conditionally log it
! 511: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
! 512: if(!vhandled || !vhandled->as_bool()) {
! 513: SAPI::log(sapi_info, "%s", exception_cstr);
! 514: }
1.383 moko 515:
1.407 ! moko 516: if(body_string) { // could report an error beautifully?
! 517: VString body_vstring(*body_string);
1.273 paf 518:
1.407 ! moko 519: body_file=body_vstring.as_vfile(flang, &charsets);
! 520: as_attachment=false;
! 521: } else {
! 522: // doing that ugly
! 523: SAPI::send_error(sapi_info, exception_cstr, !strcmp(e.type(), "file.missing") ? "404" : "500");
! 524: return;
! 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);
1.380 moko 529: // unconditionally log the beast in exception handler
1.407 ! moko 530: throw Exception(0, 0, "Unhandled exception in %s", get_exception_cstr(e, details));
1.268 paf 531: }
1.1 paf 532: }
1.406 moko 533:
534: // write out the result outside of try as network exceptions should not be handled by parser code.
535: output_result(body_file, header_only, as_attachment);
1.1 paf 536: }
537:
1.266 paf 538: uint Request::register_file(String::Body file_spec) {
1.248 paf 539: file_list+=file_spec;
540: return file_list.count()-1;
541: }
542:
1.387 moko 543: void Request::use_file_directly(const String& file_spec, bool fail_on_file_absence, bool with_auto_p) {
1.73 paf 544: // cyclic dependence check
1.318 misha 545: if(used_files.get(file_spec))
1.248 paf 546: return;
1.318 misha 547: used_files.put(file_spec, true);
548:
1.385 moko 549: if(!fail_on_file_absence && !entry_exists(file_spec)) // ignore file absence if asked for
550: return;
1.318 misha 551:
1.386 moko 552: if(with_auto_p) {
553: // loading auto.p files from document_root/..
554: // to the one beside requested file.
555: // all assigned bases from upper dir
556: const char* target=file_spec.cstr();
557:
558: // all relative paths are calculated from main document
559: request_info.path_translated=target;
560:
561: const char* after=target;
562: size_t drlen=strlen(request_info.document_root);
563: if(memcmp(after, request_info.document_root, drlen)==0) {
564: after+=drlen;
565: if(after[-1]=='/')
566: --after;
567: }
568:
569: while(const char* before=strchr(after, '/')) {
570: String& sfile_spec=*new String;
571: if(after!=target) {
572: sfile_spec.append_strdup(target, before-target, String::L_CLEAN);
573: sfile_spec << "/" AUTO_FILE_NAME;
574:
1.387 moko 575: use_file_directly(sfile_spec, false /*ignore absence, sole user*/);
1.386 moko 576: }
577: for(after=before+1;*after=='/';after++);
578: }
579: }
580:
1.385 moko 581: if(const char* source=file_read_text(charsets, file_spec, true))
1.387 moko 582: use_buf(main_class, source, 0, register_file(file_spec));
1.318 misha 583: }
584:
585:
1.387 moko 586: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, bool with_auto_p) {
1.326 misha 587: if(file_name.is_empty())
1.366 moko 588: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 589:
1.318 misha 590: const String* filespec=0;
591:
592: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.388 moko 593: filespec=&full_disk_path(file_name);
1.318 misha 594: else if(use_filespec){ // search in current dir first
1.331 misha 595: size_t last_slash_pos=use_filespec->strrpbrk("/");
596: if(last_slash_pos!=STRING_NOT_FOUND)
597: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 598: }
599:
600: if(!filespec){
601: // prevent multiple scan CLASS_PATH for searching one file
602: if(searched_along_class_path.get(file_name))
603: return;
604: searched_along_class_path.put(file_name, true);
1.308 misha 605: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 606: if(element->is_string()) {
1.388 moko 607: filespec=file_exist(full_disk_path(element->as_string()), file_name); // found at class_path?
1.233 paf 608: } else if(Table *table=element->get_table()) {
1.318 misha 609: for(size_t i=table->count(); i--; ) {
1.248 paf 610: const String& path=*(*table->get(i))[0];
1.388 moko 611: if(filespec=file_exist(full_disk_path(path), file_name))
1.233 paf 612: break; // found along class_path
613: }
614: } else
1.366 moko 615: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 616: if(!filespec)
1.395 moko 617: throw Exception(PARSER_RUNTIME, &file_name, "not found along $main:" CLASS_PATH_NAME);
1.318 misha 618: } else
1.395 moko 619: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $main:" CLASS_PATH_NAME " were specified");
1.148 parser 620: }
1.230 paf 621:
1.387 moko 622: use_file_directly(*filespec, true, with_auto_p);
1.16 paf 623: }
624:
1.364 moko 625: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 626: static String use("USE");
627: try {
1.364 moko 628: static VHash* voptions=new VHash();
1.376 moko 629: if(const Method *method=main_class.get_method(use_method_name)){
1.364 moko 630: Value *params[]={new VString(file_name), voptions};
631: voptions->hash().put(origin_key, new VString(*use_filespec));
632:
633: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
634: frame.store_params(params, 2);
635: // we don't need the result
636: call(frame);
637: });
638: }
1.349 moko 639: } catch (...) {
640: exception_trace.push(Trace(&use, origin));
641: rethrow;
642: }
643: }
1.208 paf 644:
1.358 moko 645: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
646: // temporary zero @conf to avoid it second execution
1.248 paf 647: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 648: // temporary zero @auto to avoid it second execution
1.248 paf 649: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 650:
1.295 misha 651: // compile loaded classes
652: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 653:
1.248 paf 654: VString* vfilespec=
655: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 656:
657: for(size_t i=0; i<cclasses.count(); i++){
658: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 659:
660: // locate and execute possible @conf[] static
1.382 moko 661: if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
1.295 misha 662: configure_admin(cclass/*, executed.method->name*/);
663:
664: // locate and execute possible @auto[] static
1.382 moko 665: execute_method_if_exists(cclass, auto_method_name, vfilespec);
1.336 moko 666:
667: cclass.enable_default_setter();
1.295 misha 668: }
1.19 paf 669: }
670:
1.248 paf 671: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 672: char *hpath=pa_strdup(apath);
1.248 paf 673: String& result=*new String;
674: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 675: result << hpath << "/";
1.248 paf 676: result << relative_name;
677: return result;
1.19 paf 678: }
679:
1.388 moko 680: const String& Request::full_disk_path(const String& relative_name) {
1.217 paf 681: if(relative_name.first_char()=='/') {
1.341 moko 682: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 683: result << relative_name;
1.19 paf 684: return result;
1.389 moko 685: }
686: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 687: #ifdef WIN32
1.389 moko 688: || relative_name.pos(":")==1 // DRIVE:
689: || relative_name.starts_with("\\\\") // UNC1
690: || relative_name.starts_with("//") // UNC2
1.247 paf 691: #endif
1.389 moko 692: )
693: return relative_name;
694:
695: return relative(request_info.path_translated ? request_info.path_translated : request_info.document_root, relative_name);
1.1 paf 696: }
1.45 paf 697:
1.267 paf 698: #ifndef DOXYGEN
699: class Add_header_attribute_info
700: {
701: public:
702: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
703: Request& r;
704: bool add_last_modified;
705: };
706: #endif
1.344 moko 707: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
708: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 709: return;
1.290 misha 710:
1.345 moko 711: if(name==LAST_MODIFIED_NAME_UPPER)
712: info->add_last_modified=false;
713:
1.316 misha 714: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 715:
1.267 paf 716: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 717: aname,
1.316 misha 718: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 719: );
1.267 paf 720: }
721:
1.366 moko 722: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 723: // transcode text body when "text/*" or simple result
724: String::C output(body_file.value_ptr(), body_file.value_size());
725: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 726: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 727:
1.311 misha 728: // prepare header: Content-Length
729: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 730:
731: // send header
732: SAPI::send_header(r.sapi_info);
733:
734: // send body
735: if(!header_only)
736: SAPI::send_body(r.sapi_info, output.str, output.length);
737: }
738:
739: #ifndef DOXYGEN
740: struct Range
741: {
1.396 moko 742: uint64_t start;
743: uint64_t end;
1.267 paf 744: };
745: #endif
1.396 moko 746:
747: #define UNSET ((uint64_t)-1)
748:
1.313 misha 749: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 750: const char *p = s->cstr();
751: if(s->starts_with("bytes="))
752: p += 6;
753: Range r;
754: while(*p){
1.396 moko 755: r.start = UNSET;
756: r.end = UNSET;
1.401 moko 757:
758: while(*p==' ' || *p=='\t') p++;
759:
1.267 paf 760: if(*p >= '0' && *p <= '9'){
1.401 moko 761: const char *s=p;
762: while(*p>='0' && *p<='9') p++;
763: r.start = pa_atoul(pa_strdup(s,p-s));
1.267 paf 764: }
1.401 moko 765:
766: while(*p==' ' || *p=='\t') p++;
767:
1.267 paf 768: if(*p++ != '-') break;
1.401 moko 769:
770: while(*p==' ' || *p=='\t') p++;
771:
1.267 paf 772: if(*p >= '0' && *p <= '9'){
1.401 moko 773: const char *s=p;
774: while(*p>='0' && *p<='9') p++;
775: r.end = pa_atoul(pa_strdup(s,p-s));
1.267 paf 776: }
1.401 moko 777:
778: while(*p==' ' || *p=='\t') p++;
779:
780: if(*p)
781: if(*p++ != ',') break;
782:
1.267 paf 783: ar += r;
784: }
1.101 paf 785: }
1.267 paf 786:
1.400 moko 787: struct Send_range_action_info {
788: Request *r;
789: uint64_t offset;
790: uint64_t part_length;
791: };
792:
793: static void send_range(struct stat& /*finfo*/, int f, const String& /*file_spec*/, void *context){
794: Send_range_action_info &info = *(Send_range_action_info*)context;
795:
796: pa_lseek(f, info.offset, SEEK_SET);
797:
798: const size_t BUFSIZE = 128*0x400;
799: char buf[BUFSIZE];
800: do{
801: size_t to_read = info.part_length < BUFSIZE ? (size_t)info.part_length : BUFSIZE;
802: size_t to_write = file_block_read(f, buf, to_read);
803:
804: if(to_write == 0)
805: break;
806:
807: size_t size = SAPI::send_body(info.r->sapi_info, buf, to_write);
808: if(size != to_write)
809: break;
810:
811: info.part_length -= to_write;
812: } while (info.part_length);
813: }
814:
1.396 moko 815: 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 816: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 817:
1.339 moko 818: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.396 moko 819: uint64_t offset=0;
820: uint64_t part_length=content_length;
1.401 moko 821:
822: if(range && content_length){
1.267 paf 823: Array<Range> ar;
824: parse_range(new String(range), ar);
1.396 moko 825: int count = ar.count();
1.267 paf 826: if(count == 1){
827: Range &rg = ar.get_ref(0);
1.401 moko 828:
829: if(rg.start == UNSET && rg.end == UNSET)
830: return SAPI::send_error(r.sapi_info, "", "416");
831:
1.396 moko 832: if(rg.start == UNSET && rg.end != UNSET){
1.401 moko 833: if(rg.end > content_length)
834: rg.end = content_length;
1.404 moko 835: rg.start = content_length - rg.end;
836: rg.end = content_length-1;
1.401 moko 837: } else if(rg.start != UNSET && rg.end == UNSET){
838: if(rg.start >= content_length)
839: return SAPI::send_error(r.sapi_info, "", "416");
1.267 paf 840: rg.end = content_length-1;
1.401 moko 841: } else {
842: if(rg.start >= content_length || rg.start > rg.end)
843: return SAPI::send_error(r.sapi_info, "", "416");
844: if(rg.end >= content_length)
845: rg.end = content_length-1;
1.267 paf 846: }
1.401 moko 847:
848: offset = rg.start;
849: part_length = rg.end-rg.start+1;
850:
1.400 moko 851: char buf[MAX_STRING];
852: snprintf(buf, MAX_STRING, "bytes %.15g-%.15g/%.15g", (double)rg.start, (double)rg.end, (double)content_length);
1.401 moko 853: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206");
1.315 misha 854: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.401 moko 855: } else {
856: return SAPI::send_error(r.sapi_info, count ? "Multiple ranges not supported" : "Invalid range", count ? "501" : "400");
1.267 paf 857: }
858: }
859:
1.398 moko 860: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format((double)part_length, "%.15g"));
1.267 paf 861:
1.314 misha 862: if(add_last_modified)
1.315 misha 863: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 864:
1.267 paf 865: SAPI::send_header(r.sapi_info);
866:
867: if(!header_only){
1.400 moko 868: Send_range_action_info info = { &r, offset, part_length};
869: file_read_action_under_lock(r.full_disk_path(filename), "send", send_range, &info);
1.267 paf 870: }
871: }
872:
1.248 paf 873: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 874: // header: cookies
1.248 paf 875: cookie.output_result(sapi_info);
1.51 paf 876:
1.394 moko 877: // $.file and $.name (when body is real vfile)
878: Value* vfile = body_file->fields().get(response_body_file_name);
879: Value* vname = body_file->fields().get(name_name);
880:
881: const String* sfile = vfile ? &vfile->as_string() : NULL;
882: const String* sname = vname ? &vname->as_string() : NULL;
883:
884: if(sname && *sname == NONAME_DAT)
885: sname = NULL;
1.92 paf 886:
1.314 misha 887: // Content-Disposition
1.394 moko 888: const String* disposition_name = sname ? sname->is_empty() ? NULL : sname : sfile;
889: if(disposition_name) {
890: VHash& hash=*new VHash();
891: hash.hash().put(value_name, new VString(as_attachment ? content_disposition_attachment : content_disposition_inline));
892: hash.hash().put(content_disposition_filename_name, new VString(*new String(*disposition_name, String::L_HTTP_HEADER)));
893: response.fields().put(content_disposition_name_upper, &hash);
894: }
1.267 paf 895:
1.394 moko 896: // _file_ content-type might be specified
897: Value* body_file_content_type = body_file->fields().get(content_type_name);
898: if(!body_file_content_type){
899: const String* scontent_name = sname && !sname->is_empty() ? sname : sfile;
900: if(scontent_name)
901: body_file_content_type = new VString(mime_type_of(scontent_name->cstr()));
1.267 paf 902: }
903:
1.312 misha 904: // set Content-Type
1.314 misha 905: if(body_file_content_type) {
906: // body file content type
1.344 moko 907: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 908: } else {
909: // default content type
1.344 moko 910: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 911: }
1.312 misha 912:
1.314 misha 913: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 914: Add_header_attribute_info info(*this);
1.281 paf 915: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 916:
1.394 moko 917: if(sfile) {
1.314 misha 918: // $response:[download|body][$.file[filespec]] -- optput specified file
1.367 moko 919: uint64_t content_length=0;
1.267 paf 920: time_t atime=0, mtime=0, ctime=0;
1.394 moko 921: file_stat(full_disk_path(*sfile), content_length, atime, mtime, ctime);
1.267 paf 922:
923: VDate* vdate=0;
924: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 925: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 926: vdate=static_cast<VDate*>(vdatep);
927: else
1.286 misha 928: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 929: }
930: if(!vdate)
1.346 moko 931: vdate=new VDate((pa_time_t)mtime);
1.62 paf 932:
1.399 moko 933: output_pieces(*this, header_only, *sfile, content_length, *vdate, info.add_last_modified);
1.267 paf 934: } else {
1.314 misha 935: if(body_file_content_type)
936: if(HashStringValue *hash=body_file_content_type->get_hash())
937: body_file_content_type=hash->get(value_name);
938:
1.366 moko 939: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 940: }
1.50 paf 941: }
1.104 paf 942:
1.328 misha 943: const String& Request::mime_type_of(const String* file_name) {
944: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
945: }
946:
1.248 paf 947: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 948: if(mime_types)
1.248 paf 949: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
950: String sext(++cext);
1.246 paf 951: Table::Action_options options;
1.342 moko 952: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 953: if(const String* result=mime_types->item(1))
954: return *result;
1.104 paf 955: else
1.395 moko 956: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 957: }
1.104 paf 958: }
1.248 paf 959:
960: return *new String("application/octet-stream");
961: }
962:
1.365 moko 963: const String* Request::get_used_filespec(uint file_no){
1.318 misha 964: if(file_no < file_list.count())
965: return new String(file_list[file_no], String::L_TAINTED);
966: return 0;
967: }
968:
1.248 paf 969: #ifdef XML
1.280 paf 970: xmlChar* Request::transcode(const String& s) {
1.248 paf 971: return charsets.source().transcode(s);
972: }
973:
1.280 paf 974: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 975: return charsets.source().transcode(s);
976: }
977:
1.280 paf 978: const String& Request::transcode(const xmlChar* s) {
1.248 paf 979: return charsets.source().transcode(s);
1.233 paf 980: }
1.248 paf 981: #endif
982:
1.349 moko 983: Request::Exception_details Request::get_details(const Exception& e) {
984: const String* problem_source=e.problem_source();
985: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
986: Operation::Origin origin={0, 0, 0};
1.248 paf 987:
1.349 moko 988: if(!exception_trace.is_empty()) {
989: Trace bottom=exception_trace.bottom_value();
1.350 moko 990: origin=bottom.origin();
991: if(!problem_source) { // we don't know who trigged the bug
992: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
993: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
994: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 995: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
996: } else {
997: // stack top contains not us, leaving intact to help ^throw
1.279 paf 998: }
1.248 paf 999: }
1000:
1001: // $.type
1002: if(const char* type=e.type(true))
1003: hash.put(exception_type_part_name, new VString(*new String(type)));
1004:
1005: // $.source
1.349 moko 1006: if(problem_source)
1007: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 1008:
1.349 moko 1009: // $.file $.lineno $.colno
1010: if(origin.file_no){
1.347 moko 1011: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1012: hash.put("lineno", new VInt(1+origin.line));
1013: hash.put("colno", new VInt(1+origin.col));
1.248 paf 1014: }
1015:
1016: // $.comment
1017: if(const char* comment=e.comment(true))
1.349 moko 1018: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 1019:
1020: // $.handled(0)
1.299 misha 1021: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 1022:
1.349 moko 1023: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 1024: }
1.337 moko 1025:
1026: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
1027: frequest(arequest),
1028: fwhere(awhere),
1029: fname(aname),
1030: saved(awhere.get_element(aname))
1031: {
1032: Junction* junction;
1033: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1034: saved=0;
1035: frequest.put_element(fwhere, aname, awhat);
1036: }
1037:
1038: Temp_value_element::~Temp_value_element() {
1039: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1040: }
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