Annotation of parser3/src/main/pa_request.C, revision 1.353
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.351 moko 4: Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
1.194 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.218 paf 6: */
1.55 paf 7:
1.69 paf 8: #include "pa_sapi.h"
1.53 paf 9: #include "pa_common.h"
1.1 paf 10: #include "pa_request.h"
1.3 paf 11: #include "pa_wwrapper.h"
12: #include "pa_vclass.h"
1.31 paf 13: #include "pa_globals.h"
1.30 paf 14: #include "pa_vint.h"
1.297 misha 15: #include "pa_vmethod_frame.h"
1.32 paf 16: #include "pa_types.h"
1.248 paf 17: #include "pa_venv.h"
18: #include "pa_vmath.h"
19: #include "pa_vstatus.h"
20: #include "pa_vrequest.h"
1.78 paf 21: #include "pa_vtable.h"
1.90 paf 22: #include "pa_vfile.h"
1.147 parser 23: #include "pa_dictionary.h"
1.208 paf 24: #include "pa_charset.h"
1.186 paf 25: #include "pa_charsets.h"
1.248 paf 26: #include "pa_cache_managers.h"
27: #include "pa_vmail.h"
28: #include "pa_vform.h"
29: #include "pa_vcookie.h"
30: #include "pa_vresponse.h"
31: #include "pa_vmemory.h"
1.253 paf 32: #include "pa_vconsole.h"
1.267 paf 33: #include "pa_vdate.h"
1.159 parser 34:
1.353 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.352 2016/04/01 16:27:32 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 36:
1.248 paf 37: // consts
38:
1.269 paf 39: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 40:
1.82 paf 41: /// content type of exception response, when no @MAIN:exception handler defined
1.248 paf 42: const char* UNHANDLED_EXCEPTION_CONTENT_TYPE="text/plain";
1.82 paf 43:
44: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 45: const char* DEFAULT_CONTENT_TYPE="text/html";
46:
47: // defines for globals
48:
49: #define MAIN_METHOD_NAME "main"
50: #define AUTO_METHOD_NAME "auto"
1.309 misha 51: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 52: #define EXCEPTION_TYPE_PART_NAME "type"
53: #define EXCEPTION_SOURCE_PART_NAME "source"
54: #define EXCEPTION_COMMENT_PART_NAME "comment"
55:
56: // globals
57:
58: const String main_method_name(MAIN_METHOD_NAME);
59: const String auto_method_name(AUTO_METHOD_NAME);
1.309 misha 60: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 61:
1.248 paf 62: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
63: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
64: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
65: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
66:
67: // defines for statics
68:
69: #define CHARSETS_NAME "CHARSETS"
70: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 71: #define STRICT_VARS_NAME "STRICT-VARS"
1.248 paf 72: #define CONF_METHOD_NAME "conf"
73: #define POST_PROCESS_METHOD_NAME "postprocess"
74: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 75: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 76:
1.344 moko 77: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
78: #define BODY_NAME_UPPER "BODY"
79:
1.248 paf 80: // statics
81:
82: static const String charsets_name(CHARSETS_NAME);
83: static const String main_class_name(MAIN_CLASS_NAME);
84: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 85: static const String strict_vars_name(STRICT_VARS_NAME);
1.248 paf 86: static const String conf_method_name(CONF_METHOD_NAME);
87: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
88: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 89: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 90:
1.344 moko 91: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
92: static const String body_name_upper(BODY_NAME_UPPER);
93:
94: // more static
95:
96: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
97: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
98: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
99: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
100:
1.248 paf 101: // defines
1.82 paf 102:
1.344 moko 103: #define CHARSET_NAME_UPPER "CHARSET"
104: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
105:
1.233 paf 106: // op.C
1.248 paf 107: VStateless_class& VClassMAIN_create();
1.123 paf 108:
1.157 parser 109: //
1.248 paf 110: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 111: String::Language adefault_lang):
1.248 paf 112: // private
113: anti_endless_execute_recoursion(0),
114:
115: // public
1.335 moko 116: allow_class_replace(false),
1.248 paf 117: method_frame(0),
118: rcontext(0),
119: wcontext(0),
120: flang(adefault_lang),
1.191 paf 121: fconnection(0),
1.307 misha 122: finterrupted(false),
123: fskip(SKIP_NOTHING),
124: fin_cycle(0),
1.248 paf 125:
126: // public
1.257 paf 127: request_info(arequest_info),
1.248 paf 128: sapi_info(asapi_info),
129: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
130:
131: main_class(VClassMAIN_create()),
1.260 paf 132: form(*new VForm(charsets, arequest_info)),
1.248 paf 133: mail(*new VMail),
134: response(*new VResponse(arequest_info, charsets)),
1.298 misha 135: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 136: console(*new VConsole),
1.248 paf 137:
138: // private
139: configure_admin_done(false),
140:
141: // private defaults
142: fdefault_lang(adefault_lang),
143: // private mime types
144: mime_types(0)
1.157 parser 145: {
1.261 paf 146: pa_register_thread_request(*this);
147:
1.248 paf 148: // file_no=0 => unknown
1.347 moko 149: file_list+="UNKNOWN";
150: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 151:
1.178 paf 152: // maybe expire old caches
1.264 paf 153: cache_managers->maybe_expire();
1.178 paf 154:
1.157 parser 155: /// directly used
1.233 paf 156: // MAIN class, operators
1.353 ! moko 157: put_class(&main_class);
1.157 parser 158: // classes:
159: // table, file, random, mail, image, ...
1.248 paf 160: methoded_array().register_directly_used(*this);
1.157 parser 161:
162: /// methodless
163: // env class
1.353 ! moko 164: put_class(new VEnv(asapi_info));
1.175 paf 165: // status class
1.353 ! moko 166: put_class(new VStatus());
1.157 parser 167: // request class
1.353 ! moko 168: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 169: // cookie class
1.353 ! moko 170: put_class(&cookie);
1.253 paf 171: // console class
1.353 ! moko 172: put_class(&console);
1.157 parser 173: /// methoded
174: // response class
1.353 ! moko 175: put_class(&response);
1.157 parser 176:
177: // form class
1.353 ! moko 178: put_class(&form);
1.213 paf 179: // mail class
1.353 ! moko 180: put_class(&mail);
1.157 parser 181: // math class
1.353 ! moko 182: put_class(new VMath);
1.248 paf 183: // memory class
1.353 ! moko 184: put_class(new VMemory);
1.117 paf 185: }
1.192 paf 186:
187: Request::~Request() {
188: #ifdef XML
189: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 190: if(const char* xml_generic_errors=xmlGenericErrors()) {
191: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 192: pa_free((void *)xml_generic_errors);
1.192 paf 193: }
194: #endif
195: }
1.236 paf 196:
1.248 paf 197: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 198:
1.309 misha 199: Value* Request::get_class(const String& name){
200: Value* result=classes().get(name);
1.313 misha 201: if(!result)
1.309 misha 202: if(Value* value=main_class.get_element(autouse_method_name))
203: if(Junction* junction=value->get_junction())
204: if(const Method *method=junction->method) {
205: Value *vname=new VString(name);
1.322 moko 206: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 207:
208: frame.store_params(&vname, 1);
209: // we don't need the result
1.323 moko 210: execute_method(frame);
1.309 misha 211:
212: result=classes().get(name);
213: }
1.313 misha 214:
1.309 misha 215: return result;
216: }
217:
1.248 paf 218: static void load_charset(HashStringValue::key_type akey,
219: HashStringValue::value_type avalue,
220: Request_charsets* charsets) {
1.249 paf 221: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 222: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 223: }
1.248 paf 224: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 225: if(configure_admin_done)
1.286 misha 226: throw Exception(PARSER_RUNTIME,
1.248 paf 227: 0,
1.208 paf 228: "parser already configured");
229: configure_admin_done=true;
230:
1.227 paf 231: // charsets must only be specified in method_frame config
1.208 paf 232: // so that users would not interfere
233:
234: /* $MAIN:CHARSETS[
235: $.charsetname1[/full/path/to/charset/file.cfg]
236: ...
237: ]
238: */
1.308 misha 239: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 240: if(!vcharsets->is_string()) {
1.248 paf 241: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 242: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 243: else
1.286 misha 244: throw Exception(PARSER_RUNTIME,
1.240 paf 245: 0,
246: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 247: }
1.208 paf 248: }
249:
1.330 moko 250: #ifdef STRICT_VARS
1.332 moko 251: VVoid::strict_vars=false;
1.330 moko 252: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
253: if(strict_vars->is_bool())
254: VVoid::strict_vars=strict_vars->as_bool();
255: else
256: throw Exception(PARSER_RUNTIME,
257: 0,
258: "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
259: }
260: #endif
261:
1.227 paf 262: // configure method_frame options
1.208 paf 263: // until someone with less privileges have overriden them
1.248 paf 264: methoded_array().configure_admin(*this);
1.208 paf 265: }
1.150 parser 266:
1.349 moko 267: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
268:
1.269 paf 269: #define PA_URI_FORMAT "%s: "
1.349 moko 270: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
271:
1.269 paf 272: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
273: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 274:
275: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
276: #define PA_SOURCE_VALUE details.problem_source->cstr(),
277:
278: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
279: snprintf(result, MAX_STRING, \
280: PA_URI_FORMAT \
281: f1 f2 \
282: PA_COMMENT_TYPE_FORMAT, \
283: request_info.uri, \
284: v1 v2 \
285: e.comment(), e.type() \
286: );
287:
1.269 paf 288: char* result=new(PointerFreeGC) char[MAX_STRING];
289:
290: if(details.problem_source) { // do we know the guy?
1.349 moko 291: if(details.origin.file_no) // do whe know where he came from?
292: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
293: else
294: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
295: } else {
296: if(details.origin.file_no) // do whe know where he came from?
297: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
298: else
299: EXCEPTION_CSTR(,,,)
300: }
1.269 paf 301:
302: return result;
303: }
1.272 paf 304:
305: void Request::configure() {
306: // configure admin options if not configured yet
307: if(!configure_admin_done)
308: configure_admin(main_class);
309:
310: // configure not-admin=user options
311: methoded_array().configure_user(*this);
312:
313: // $MAIN:MIME-TYPES
1.308 misha 314: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 315: if(Table *table=element->get_table())
316: mime_types=table;
317: }
1.64 paf 318: /**
319: load MAIN class, execute @main.
320: MAIN class consists of all the auto.p files we'd manage to find
321: plus
322: the file user requested us to process
323: all located classes become children of one another,
324: composing class we name 'MAIN'
1.180 paf 325:
326: @test log stack trace
327:
1.64 paf 328: */
1.248 paf 329: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 330: try {
1.211 paf 331: // loading config
332: if(config_filespec) {
1.248 paf 333: const String& filespec=*new String(config_filespec);
1.318 misha 334: use_file_directly(main_class,
335: filespec,
1.248 paf 336: config_fail_on_read_problem,
337: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 338: }
1.8 paf 339:
1.338 moko 340: // filling mail received
341: mail.fill_received(*this);
342:
1.72 paf 343: // loading auto.p files from document_root/..
344: // to the one beside requested file.
345: // all assigned bases from upper dir
346: {
1.248 paf 347: const char* after=request_info.path_translated;
348: size_t drlen=strlen(request_info.document_root);
349: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 350: after+=drlen;
351: if(after[-1]=='/')
352: --after;
353: }
354:
1.248 paf 355: while(const char* before=strchr(after, '/')) {
356: String& sfile_spec=*new String;
357: if(after!=request_info.path_translated) {
358: sfile_spec.append_strdup(
359: request_info.path_translated, before-request_info.path_translated,
360: String::L_CLEAN);
1.152 parser 361: sfile_spec << "/" AUTO_FILE_NAME;
362:
1.318 misha 363: use_file_directly(main_class,
1.248 paf 364: sfile_spec,
365: true /*fail on read problem*/,
366: false /*but ignore absence, sole user*/);
1.115 paf 367: }
1.317 misha 368: for(after=before+1;*after=='/';after++);
1.72 paf 369: }
370: }
1.34 paf 371:
1.272 paf 372: try {
373: // compile requested file
374: String& spath_translated=*new String;
375: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 376: use_file_directly(main_class, spath_translated);
1.272 paf 377:
378: configure();
379: } catch(...) {
380: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
381: rethrow;
382: }
1.25 paf 383:
384: // execute @main[]
1.248 paf 385: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 386: if(!body_string)
1.286 misha 387: throw Exception(PARSER_RUNTIME,
1.248 paf 388: 0,
1.340 moko 389: "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 390:
1.250 paf 391: // extract response body
1.344 moko 392: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 393: bool as_attachment=body_value!=0;
394: if(!body_value)
1.344 moko 395: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 396: if(!body_value)
397: body_value=new VString(*body_string); // just result of ^main[]
398:
1.119 paf 399: // @postprocess
1.308 misha 400: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 401: if(Junction* junction=value->get_junction())
1.91 paf 402: if(const Method *method=junction->method) {
403: // preparing to pass parameters to
1.119 paf 404: // @postprocess[data]
1.322 moko 405: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 406:
1.300 misha 407: frame.store_params(&body_value, 1);
1.323 moko 408: execute_method(frame);
409:
410: body_value=&frame.result().as_value();
1.91 paf 411: }
1.90 paf 412:
1.303 misha 413: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 414:
1.45 paf 415: // OK. write out the result
1.248 paf 416: output_result(body_file, header_only, as_attachment);
1.183 paf 417:
1.171 parser 418: } catch(const Exception& e) { // request handling problem
1.268 paf 419: try {
1.76 paf 420: // we're returning not result, but error explanation
1.269 paf 421:
422: Request::Exception_details details=get_details(e);
423: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 424:
425: // reset language to default
426: flang=fdefault_lang;
427:
428: // reset response
429: response.fields().clear();
430:
431: // this is what we'd return in $response:body
432: const String* body_string=0;
433:
434: // maybe we'd be lucky enough as to report an error
435: // in a gracefull way...
1.308 misha 436: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 437: if(Junction* junction=value->get_junction()) {
438: if(const Method *method=junction->method) {
1.287 misha 439: // preparing to pass parameters to
440: // @unhandled_exception[exception;stack]
441:
442: // $stack[^table::create{name file lineno colno}]
443: Table::columns_type stack_trace_columns(new ArrayString);
444: *stack_trace_columns+=new String("name");
445: *stack_trace_columns+=new String("file");
446: *stack_trace_columns+=new String("lineno");
447: *stack_trace_columns+=new String("colno");
448: Table& stack_trace=*new Table(stack_trace_columns);
449: if(!exception_trace.is_empty()/*signed!*/)
450: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
451: Trace trace=exception_trace.get(i);
452: Table::element_type row(new ArrayString);
453:
454: *row+=trace.name(); // name column
455: Operation::Origin origin=trace.origin();
456: if(origin.file_no) {
457: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
458: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
459: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
460: }
461: stack_trace+=row;
462: }
463:
1.323 moko 464: // future $response:body=
465: // execute ^unhandled_exception[exception;stack]
466: 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)
467:
468: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 469: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 470:
1.300 misha 471: frame.store_params(params, 2);
1.323 moko 472: execute_method(frame);
1.287 misha 473:
1.323 moko 474: body_string=&frame.result().as_string();
1.233 paf 475: }
1.30 paf 476: }
1.258 paf 477: }
478:
479: if(!body_string) { // couldn't report an error beautifully?
480: // doing that ugly
481:
482: // future $response:content-type
1.344 moko 483: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 484: // future $response:body
1.269 paf 485: body_string=new String(exception_cstr);
1.258 paf 486: }
1.41 paf 487:
1.258 paf 488: VString body_vstring(*body_string);
1.303 misha 489: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 490:
1.273 paf 491: // conditionally log it
492: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
493: if(!vhandled || !vhandled->as_bool()) {
494: SAPI::log(sapi_info, "%s", exception_cstr);
495: }
496:
1.258 paf 497: // ERROR. write it out
498: output_result(body_file, header_only, false);
1.287 misha 499:
1.273 paf 500: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 501: Request::Exception_details details=get_details(e);
502: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 503: // unconditionally log the beast
504: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 505:
506: throw Exception(0,
507: 0,
508: "in %s",
509: exception_cstr);
1.268 paf 510: }
1.1 paf 511: }
512: }
513:
1.266 paf 514: uint Request::register_file(String::Body file_spec) {
1.248 paf 515: file_list+=file_spec;
516: return file_list.count()-1;
517: }
518:
1.318 misha 519: void Request::use_file_directly(VStateless_class& aclass,
520: const String& file_spec,
521: bool fail_on_read_problem,
522: bool fail_on_file_absence) {
523:
1.73 paf 524: // cyclic dependence check
1.318 misha 525: if(used_files.get(file_spec))
1.248 paf 526: return;
1.318 misha 527: used_files.put(file_spec, true);
528:
529: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
530: if(!entry_exists(file_spec))
531: return;
532:
533: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
534: use_buf(aclass, source, 0, register_file(file_spec));
535: }
536:
537:
1.349 moko 538: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/) {
1.73 paf 539:
1.326 misha 540: if(file_name.is_empty())
541: throw Exception(PARSER_RUNTIME,
542: 0,
543: "usage failed - no filename was specified");
544:
1.318 misha 545: const String* filespec=0;
546:
547: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
548: filespec=&absolute(file_name);
549: else if(use_filespec){ // search in current dir first
1.331 misha 550: size_t last_slash_pos=use_filespec->strrpbrk("/");
551: if(last_slash_pos!=STRING_NOT_FOUND)
552: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 553: }
554:
555: if(!filespec){
556: // prevent multiple scan CLASS_PATH for searching one file
557: if(searched_along_class_path.get(file_name))
558: return;
559: searched_along_class_path.put(file_name, true);
1.308 misha 560: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 561: if(element->is_string()) {
1.318 misha 562: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 563: } else if(Table *table=element->get_table()) {
1.318 misha 564: for(size_t i=table->count(); i--; ) {
1.248 paf 565: const String& path=*(*table->get(i))[0];
1.318 misha 566: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 567: break; // found along class_path
568: }
569: } else
1.286 misha 570: throw Exception(PARSER_RUNTIME,
1.233 paf 571: 0,
572: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 573: if(!filespec)
1.286 misha 574: throw Exception(PARSER_RUNTIME,
1.233 paf 575: &file_name,
576: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 577: } else
1.286 misha 578: throw Exception(PARSER_RUNTIME,
1.153 parser 579: &file_name,
1.203 paf 580: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 581: }
1.230 paf 582:
1.318 misha 583: use_file_directly(aclass, *filespec);
1.16 paf 584: }
585:
1.349 moko 586: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
587: static String use("USE");
588: try {
589: use_file(aclass, file_name, use_filespec);
590: } catch (...) {
591: exception_trace.push(Trace(&use, origin));
592: rethrow;
593: }
594: }
1.208 paf 595:
1.248 paf 596: void Request::use_buf(VStateless_class& aclass,
1.318 misha 597: const char* source, const String* main_alias,
598: uint file_no,
599: int line_no_offset) {
1.233 paf 600: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 601: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 602: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 603: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 604:
1.295 misha 605: // compile loaded classes
606: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 607:
1.248 paf 608: VString* vfilespec=
609: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 610:
611: for(size_t i=0; i<cclasses.count(); i++){
612: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 613:
614: // locate and execute possible @conf[] static
1.295 misha 615: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
616: conf_method_name, vfilespec,
617: false/*no string result needed*/);
618: if(executed.method)
619: configure_admin(cclass/*, executed.method->name*/);
620:
621: // locate and execute possible @auto[] static
622: execute_nonvirtual_method(cclass,
623: auto_method_name, vfilespec,
624: false/*no result needed*/);
1.336 moko 625:
626: cclass.enable_default_setter();
1.295 misha 627: }
1.19 paf 628: }
629:
1.248 paf 630: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 631: char *hpath=pa_strdup(apath);
1.248 paf 632: String& result=*new String;
633: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 634: result << hpath << "/";
1.248 paf 635: result << relative_name;
636: return result;
1.19 paf 637: }
638:
1.77 paf 639: const String& Request::absolute(const String& relative_name) {
1.217 paf 640: if(relative_name.first_char()=='/') {
1.341 moko 641: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 642: result << relative_name;
1.19 paf 643: return result;
644: } else
1.248 paf 645: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 646: #ifdef WIN32
647: || relative_name.pos(":")==1 // DRIVE:
648: || relative_name.starts_with("\\\\") // UNC1
649: || relative_name.starts_with("//") // UNC2
650: #endif
651: )
652: return relative_name;
653: else
1.248 paf 654: return relative(request_info.path_translated, relative_name);
1.1 paf 655: }
1.45 paf 656:
1.267 paf 657: #ifndef DOXYGEN
658: class Add_header_attribute_info
659: {
660: public:
661: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
662: Request& r;
663: bool add_last_modified;
664: };
665: #endif
1.344 moko 666: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
667: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 668: return;
1.290 misha 669:
1.345 moko 670: if(name==LAST_MODIFIED_NAME_UPPER)
671: info->add_last_modified=false;
672:
1.316 misha 673: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 674:
1.267 paf 675: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 676: aname,
1.316 misha 677: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 678: );
1.267 paf 679: }
680:
681: static void output_sole_piece(Request& r,
682: bool header_only,
683: VFile& body_file,
684: Value* body_file_content_type) {
685: // transcode text body when "text/*" or simple result
686: String::C output(body_file.value_ptr(), body_file.value_size());
687: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
688: output=Charset::transcode(output,
689: r.charsets.source(),
690: r.charsets.client());
691:
1.311 misha 692: // prepare header: Content-Length
693: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 694:
695: // send header
696: SAPI::send_header(r.sapi_info);
697:
698: // send body
699: if(!header_only)
700: SAPI::send_body(r.sapi_info, output.str, output.length);
701: }
702:
703: #ifndef DOXYGEN
704: struct Range
705: {
706: size_t start;
707: size_t end;
708: };
709: #endif
1.313 misha 710: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 711: const char *p = s->cstr();
712: if(s->starts_with("bytes="))
713: p += 6;
714: Range r;
715: while(*p){
716: r.start = (size_t)-1;
717: r.end = (size_t)-1;
718: if(*p >= '0' && *p <= '9'){
719: r.start = atol(p);
720: while(*p>='0' && *p<='9') ++p;
721: }
722: if(*p++ != '-') break;
723: if(*p >= '0' && *p <= '9'){
724: r.end = atol(p);
725: while(*p>='0' && *p<='9') ++p;
726: }
727: if(*p == ',') ++p;
728: ar += r;
729: }
1.101 paf 730: }
1.267 paf 731:
732: static void output_pieces(Request& r,
733: bool header_only,
734: const String& filename,
735: size_t content_length,
736: Value& date,
737: bool add_last_modified)
738: {
1.315 misha 739: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 740:
1.267 paf 741: const size_t BUFSIZE = 10*0x400;
742: char buf[BUFSIZE];
1.339 moko 743: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 744: size_t offset=0;
745: size_t part_length=content_length;
746: if(range){
747: Array<Range> ar;
748: parse_range(new String(range), ar);
749: size_t count = ar.count();
750: if(count == 1){
751: Range &rg = ar.get_ref(0);
752: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 753: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 754: return;
755: }
756: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
757: rg.start = content_length - rg.end;
758: rg.end = content_length;
759: offset += rg.start;
760: part_length = rg.end-rg.start;
761: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
762: rg.end = content_length-1;
763: offset += rg.start;
764: part_length -= rg.start;
765: }
766: if(part_length == 0){
1.311 misha 767: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 768: return;
769: }
1.311 misha 770: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 771: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 772: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 773: }else if(count != 0){
1.311 misha 774: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 775: return;
776: }
777: }
778:
779:
1.311 misha 780: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 781:
1.314 misha 782: if(add_last_modified)
1.315 misha 783: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 784:
1.267 paf 785: SAPI::send_header(r.sapi_info);
786:
787: const String& filespec=r.absolute(filename);
788:
789: size_t sent = 0;
790: if(!header_only){
791: size_t to_read = 0;
792: size_t size = 0;
793: do{
794: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
795: File_read_result read_result=file_read(r.charsets, filespec,
796: false /*as text*/, 0/*params*/, true/*fail on problem*/,
797: buf, offset, to_read);
798: to_read=read_result.length;
799: if(to_read == 0)
800: break;
801: offset += to_read;
802:
803: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
804: sent += size;
805: if(size != to_read)
806: break;
807: part_length -= to_read;
808: }while(part_length);
809: }
810: }
811:
1.248 paf 812: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 813: // header: cookies
1.248 paf 814: cookie.output_result(sapi_info);
1.51 paf 815:
1.314 misha 816: // _file_ content-type might be specified
1.267 paf 817: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 818:
1.314 misha 819: // Content-Disposition
1.267 paf 820: Value* vfile_name=body_file->fields().get(name_name);
821: if(!vfile_name) {
822: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 823: if(vfile_name) {
824: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 825: if(char *after_slash=rsplit(name_cstr, '\\'))
826: name_cstr=after_slash;
827: if(char *after_slash=rsplit(name_cstr, '/'))
828: name_cstr=after_slash;
1.327 misha 829: vfile_name=new VString(*new String(name_cstr));
1.274 paf 830: }
1.267 paf 831: }
832: if(vfile_name) {
833: const String& sfile_name=vfile_name->as_string();
834: if(sfile_name!=NONAME_DAT) {
1.283 misha 835: VHash& hash=*new VHash();
836: HashStringValue &h=hash.hash();
1.288 misha 837: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 838: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 839:
1.344 moko 840: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 841:
842: if(!body_file_content_type)
843: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 844: }
1.267 paf 845: }
846:
1.312 misha 847: // set Content-Type
1.314 misha 848: if(body_file_content_type) {
849: // body file content type
1.344 moko 850: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 851: } else {
852: // default content type
1.344 moko 853: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 854: }
1.312 misha 855:
1.314 misha 856: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 857: Add_header_attribute_info info(*this);
1.281 paf 858: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 859:
1.267 paf 860: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 861: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 862: const String& sresponse_body_file=vresponse_body_file->as_string();
863: size_t content_length=0;
864: time_t atime=0, mtime=0, ctime=0;
865: file_stat(absolute(sresponse_body_file),
866: content_length,
867: atime, mtime, ctime);
868:
869: VDate* vdate=0;
870: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 871: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 872: vdate=static_cast<VDate*>(vdatep);
873: else
1.286 misha 874: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 875: }
876: if(!vdate)
1.346 moko 877: vdate=new VDate((pa_time_t)mtime);
1.62 paf 878:
1.267 paf 879: output_pieces(*this, header_only,
880: sresponse_body_file,
881: content_length,
882: *vdate,
883: info.add_last_modified);
884: } else {
1.314 misha 885: if(body_file_content_type)
886: if(HashStringValue *hash=body_file_content_type->get_hash())
887: body_file_content_type=hash->get(value_name);
888:
1.267 paf 889: output_sole_piece(*this, header_only,
890: *body_file, body_file_content_type);
891: }
1.50 paf 892: }
1.104 paf 893:
1.328 misha 894: const String& Request::mime_type_of(const String* file_name) {
895: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
896: }
897:
1.248 paf 898: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 899: if(mime_types)
1.248 paf 900: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
901: String sext(++cext);
1.246 paf 902: Table::Action_options options;
1.342 moko 903: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 904: if(const String* result=mime_types->item(1))
905: return *result;
1.104 paf 906: else
1.286 misha 907: throw Exception(PARSER_RUNTIME,
1.248 paf 908: 0,
1.212 paf 909: MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 910: }
1.104 paf 911: }
1.248 paf 912:
913: return *new String("application/octet-stream");
914: }
915:
1.318 misha 916: const String* Request::get_used_filename(uint file_no){
917: if(file_no < file_list.count())
918: return new String(file_list[file_no], String::L_TAINTED);
919: return 0;
920: }
921:
1.248 paf 922: #ifdef XML
1.280 paf 923: xmlChar* Request::transcode(const String& s) {
1.248 paf 924: return charsets.source().transcode(s);
925: }
926:
1.280 paf 927: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 928: return charsets.source().transcode(s);
929: }
930:
1.280 paf 931: const String& Request::transcode(const xmlChar* s) {
1.248 paf 932: return charsets.source().transcode(s);
1.233 paf 933: }
1.248 paf 934: #endif
935:
1.349 moko 936: Request::Exception_details Request::get_details(const Exception& e) {
937: const String* problem_source=e.problem_source();
938: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
939: Operation::Origin origin={0, 0, 0};
1.248 paf 940:
1.349 moko 941: if(!exception_trace.is_empty()) {
942: Trace bottom=exception_trace.bottom_value();
1.350 moko 943: origin=bottom.origin();
944: if(!problem_source) { // we don't know who trigged the bug
945: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
946: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
947: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 948: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
949: } else {
950: // stack top contains not us, leaving intact to help ^throw
1.279 paf 951: }
1.248 paf 952: }
953:
954: // $.type
955: if(const char* type=e.type(true))
956: hash.put(exception_type_part_name, new VString(*new String(type)));
957:
958: // $.source
1.349 moko 959: if(problem_source)
960: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 961:
1.349 moko 962: // $.file $.lineno $.colno
963: if(origin.file_no){
1.347 moko 964: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
965: hash.put("lineno", new VInt(1+origin.line));
966: hash.put("colno", new VInt(1+origin.col));
1.248 paf 967: }
968:
969: // $.comment
970: if(const char* comment=e.comment(true))
1.349 moko 971: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 972:
973: // $.handled(0)
1.299 misha 974: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 975:
1.349 moko 976: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 977: }
1.337 moko 978:
979: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
980: frequest(arequest),
981: fwhere(awhere),
982: fname(aname),
983: saved(awhere.get_element(aname))
984: {
985: Junction* junction;
986: if(saved && (junction=saved->get_junction()) && junction->is_getter)
987: saved=0;
988: frequest.put_element(fwhere, aname, awhat);
989: }
990:
991: Temp_value_element::~Temp_value_element() {
992: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
993: }
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