Annotation of parser3/src/main/pa_request.C, revision 1.371
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:
1.371 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.370 2017/01/13 13:50:28 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:
1.369 moko 47: const uint LOOP_LIMIT=20000;
1.361 moko 48: const uint EXECUTE_RECOURSION_LIMIT=1000;
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;
1.369 moko 80: size_t pa_file_size_limit=FILE_SIZE_LIMIT;
1.361 moko 81:
1.248 paf 82: // defines for statics
83:
84: #define CHARSETS_NAME "CHARSETS"
85: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 86: #define STRICT_VARS_NAME "STRICT-VARS"
1.357 moko 87: #define PROTOTYPE_NAME "OBJECT-PROTOTYPE"
1.362 moko 88: #define LIMITS_NAME "LIMITS"
1.369 moko 89: #define LOOP_LIMIT_NAME "max_loop"
1.362 moko 90: #define RECOURSION_LIMIT_NAME "max_recoursion"
1.369 moko 91: #define FILE_SIZE_LIMIT_NAME "max_file_size"
1.248 paf 92: #define CONF_METHOD_NAME "conf"
93: #define POST_PROCESS_METHOD_NAME "postprocess"
94: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 95: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 96:
1.344 moko 97: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
98: #define BODY_NAME_UPPER "BODY"
99:
1.248 paf 100: // statics
101:
102: static const String charsets_name(CHARSETS_NAME);
103: static const String main_class_name(MAIN_CLASS_NAME);
104: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 105: static const String strict_vars_name(STRICT_VARS_NAME);
1.357 moko 106: static const String prototype_name(PROTOTYPE_NAME);
1.362 moko 107: static const String limits_name(LIMITS_NAME);
1.369 moko 108: static const String loop_limit_name(LOOP_LIMIT_NAME);
1.361 moko 109: static const String recoursion_limit_name(RECOURSION_LIMIT_NAME);
1.369 moko 110: static const String file_size_limit_name(FILE_SIZE_LIMIT_NAME);
1.361 moko 111:
1.248 paf 112: static const String conf_method_name(CONF_METHOD_NAME);
113: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
114: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 115: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 116:
1.344 moko 117: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
118: static const String body_name_upper(BODY_NAME_UPPER);
119:
120: // more static
121:
122: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
123: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
124: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
125: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
126:
1.248 paf 127: // defines
1.82 paf 128:
1.344 moko 129: #define CHARSET_NAME_UPPER "CHARSET"
130: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
131:
1.233 paf 132: // op.C
1.248 paf 133: VStateless_class& VClassMAIN_create();
1.123 paf 134:
1.157 parser 135: //
1.248 paf 136: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 137: String::Language adefault_lang):
1.248 paf 138: // private
139: anti_endless_execute_recoursion(0),
140:
141: // public
1.335 moko 142: allow_class_replace(false),
1.248 paf 143: method_frame(0),
144: rcontext(0),
145: wcontext(0),
146: flang(adefault_lang),
1.191 paf 147: fconnection(0),
1.371 ! moko 148: fin_cycle(0),
1.307 misha 149: fskip(SKIP_NOTHING),
1.248 paf 150:
151: // public
1.257 paf 152: request_info(arequest_info),
1.248 paf 153: sapi_info(asapi_info),
1.359 moko 154: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 155:
156: main_class(VClassMAIN_create()),
1.260 paf 157: form(*new VForm(charsets, arequest_info)),
1.248 paf 158: mail(*new VMail),
159: response(*new VResponse(arequest_info, charsets)),
1.298 misha 160: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 161: console(*new VConsole),
1.248 paf 162:
163: // private
164: configure_admin_done(false),
165:
166: // private defaults
167: fdefault_lang(adefault_lang),
168: // private mime types
169: mime_types(0)
1.157 parser 170: {
1.261 paf 171: pa_register_thread_request(*this);
172:
1.248 paf 173: // file_no=0 => unknown
1.347 moko 174: file_list+="UNKNOWN";
175: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 176:
1.178 paf 177: // maybe expire old caches
1.264 paf 178: cache_managers->maybe_expire();
1.178 paf 179:
1.157 parser 180: /// directly used
1.233 paf 181: // MAIN class, operators
1.353 moko 182: put_class(&main_class);
1.157 parser 183: // classes:
184: // table, file, random, mail, image, ...
1.248 paf 185: methoded_array().register_directly_used(*this);
1.157 parser 186:
187: /// methodless
1.354 moko 188:
1.157 parser 189: // env class
1.353 moko 190: put_class(new VEnv(asapi_info));
1.175 paf 191: // status class
1.353 moko 192: put_class(new VStatus());
1.157 parser 193: // request class
1.353 moko 194: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 195: // cookie class
1.353 moko 196: put_class(&cookie);
1.253 paf 197: // console class
1.353 moko 198: put_class(&console);
1.354 moko 199:
1.157 parser 200: /// methoded
1.354 moko 201:
1.157 parser 202: // response class
1.353 moko 203: put_class(&response);
1.157 parser 204: // form class
1.353 moko 205: put_class(&form);
1.213 paf 206: // mail class
1.353 moko 207: put_class(&mail);
1.157 parser 208: // math class
1.353 moko 209: put_class(new VMath);
1.248 paf 210: // memory class
1.353 moko 211: put_class(new VMemory);
1.117 paf 212: }
1.192 paf 213:
214: Request::~Request() {
215: #ifdef XML
216: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 217: if(const char* xml_generic_errors=xmlGenericErrors()) {
218: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 219: pa_free((void *)xml_generic_errors);
1.192 paf 220: }
221: #endif
222: }
1.236 paf 223:
1.248 paf 224: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 225:
1.355 moko 226: VStateless_class* Request::get_class(const String& name){
227: VStateless_class* result=classes().get(name);
1.313 misha 228: if(!result)
1.364 moko 229: if(const Method *method=main_class.get_method(autouse_method_name)){
230: Value *vname=new VString(name);
231: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
232: frame.store_params(&vname, 1);
233: // we don't need the result
234: call(frame);
235: });
236: result=classes().get(name);
237: }
1.309 misha 238: return result;
239: }
240:
1.356 moko 241: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 242: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 243: }
1.356 moko 244:
1.248 paf 245: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 246: if(configure_admin_done)
1.356 moko 247: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 248: configure_admin_done=true;
249:
1.227 paf 250: // charsets must only be specified in method_frame config
1.208 paf 251: // so that users would not interfere
252:
253: /* $MAIN:CHARSETS[
254: $.charsetname1[/full/path/to/charset/file.cfg]
255: ...
256: ]
257: */
1.308 misha 258: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 259: if(!vcharsets->is_string()) {
1.248 paf 260: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 261: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 262: else
1.356 moko 263: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 264: }
1.208 paf 265: }
266:
1.330 moko 267: #ifdef STRICT_VARS
1.332 moko 268: VVoid::strict_vars=false;
1.330 moko 269: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
270: if(strict_vars->is_bool())
271: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 272: else
273: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
274: }
275: #endif
276:
277: #ifdef OBJECT_PROTOTYPE
278: VClass::prototype=true;
279: if(Value* prototype=conf_class.get_element(prototype_name)) {
280: if(prototype->is_bool())
281: VClass::prototype=prototype->as_bool();
282: else
283: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" PROTOTYPE_NAME " must be bool");
1.330 moko 284: }
285: #endif
286:
1.362 moko 287: Value* limits=conf_class.get_element(limits_name);
288:
1.361 moko 289: pa_loop_limit=LOOP_LIMIT;
1.362 moko 290: if(limits)
291: if(Value* loop_limit=limits->get_element(loop_limit_name)) {
292: if(loop_limit->is_evaluated_expr()) {
293: pa_loop_limit=loop_limit->as_int();
294: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
295: } else
1.369 moko 296: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOOP_LIMIT_NAME " must be int");
1.362 moko 297: }
1.361 moko 298:
299: pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.362 moko 300: if(limits)
301: if(Value* recoursion_limit=limits->get_element(recoursion_limit_name)) {
302: if(recoursion_limit->is_evaluated_expr()) {
303: pa_execute_recoursion_limit=recoursion_limit->as_int();
304: if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
305: } else
1.369 moko 306: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." RECOURSION_LIMIT_NAME " must be int");
307: }
308:
309: pa_file_size_limit=FILE_SIZE_LIMIT;
310: if(limits)
311: if(Value* file_size_limit=limits->get_element(file_size_limit_name)) {
312: if(file_size_limit->is_evaluated_expr()) {
313: double limit=file_size_limit->as_double();
314: if(limit >= (double)SSIZE_MAX)
315: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." FILE_SIZE_LIMIT_NAME " must be less then %.15g", (double)SSIZE_MAX);
316: pa_file_size_limit=(size_t)limit;
317: if(pa_file_size_limit==0) pa_file_size_limit=SSIZE_MAX;
318: } else
319: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." FILE_SIZE_LIMIT_NAME " must be number");
1.362 moko 320: }
1.361 moko 321:
1.227 paf 322: // configure method_frame options
1.208 paf 323: // until someone with less privileges have overriden them
1.248 paf 324: methoded_array().configure_admin(*this);
1.208 paf 325: }
1.150 parser 326:
1.349 moko 327: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
328:
1.269 paf 329: #define PA_URI_FORMAT "%s: "
1.349 moko 330: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
331:
1.269 paf 332: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
333: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 334:
335: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
336: #define PA_SOURCE_VALUE details.problem_source->cstr(),
337:
338: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
339: snprintf(result, MAX_STRING, \
340: PA_URI_FORMAT \
341: f1 f2 \
342: PA_COMMENT_TYPE_FORMAT, \
343: request_info.uri, \
344: v1 v2 \
345: e.comment(), e.type() \
346: );
347:
1.269 paf 348: char* result=new(PointerFreeGC) char[MAX_STRING];
349:
350: if(details.problem_source) { // do we know the guy?
1.349 moko 351: if(details.origin.file_no) // do whe know where he came from?
352: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
353: else
354: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
355: } else {
356: if(details.origin.file_no) // do whe know where he came from?
357: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
358: else
359: EXCEPTION_CSTR(,,,)
360: }
1.269 paf 361:
362: return result;
363: }
1.272 paf 364:
365: void Request::configure() {
366: // configure admin options if not configured yet
367: if(!configure_admin_done)
368: configure_admin(main_class);
369:
370: // configure not-admin=user options
371: methoded_array().configure_user(*this);
372:
373: // $MAIN:MIME-TYPES
1.308 misha 374: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 375: if(Table *table=element->get_table())
376: mime_types=table;
377: }
1.64 paf 378: /**
379: load MAIN class, execute @main.
380: MAIN class consists of all the auto.p files we'd manage to find
381: plus
382: the file user requested us to process
383: all located classes become children of one another,
384: composing class we name 'MAIN'
1.180 paf 385:
386: @test log stack trace
387:
1.64 paf 388: */
1.248 paf 389: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 390: try {
1.211 paf 391: // loading config
392: if(config_filespec) {
1.248 paf 393: const String& filespec=*new String(config_filespec);
1.366 moko 394: use_file_directly(main_class, filespec, config_fail_on_read_problem, true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 395: }
1.8 paf 396:
1.338 moko 397: // filling mail received
398: mail.fill_received(*this);
399:
1.72 paf 400: // loading auto.p files from document_root/..
401: // to the one beside requested file.
402: // all assigned bases from upper dir
403: {
1.248 paf 404: const char* after=request_info.path_translated;
405: size_t drlen=strlen(request_info.document_root);
406: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 407: after+=drlen;
408: if(after[-1]=='/')
409: --after;
410: }
411:
1.248 paf 412: while(const char* before=strchr(after, '/')) {
413: String& sfile_spec=*new String;
414: if(after!=request_info.path_translated) {
1.366 moko 415: sfile_spec.append_strdup(request_info.path_translated, before-request_info.path_translated, String::L_CLEAN);
1.152 parser 416: sfile_spec << "/" AUTO_FILE_NAME;
417:
1.366 moko 418: use_file_directly(main_class, sfile_spec, true /*fail on read problem*/, false /*but ignore absence, sole user*/);
1.115 paf 419: }
1.317 misha 420: for(after=before+1;*after=='/';after++);
1.72 paf 421: }
422: }
1.34 paf 423:
1.272 paf 424: try {
425: // compile requested file
426: String& spath_translated=*new String;
427: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 428: use_file_directly(main_class, spath_translated);
1.272 paf 429:
430: configure();
431: } catch(...) {
432: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
433: rethrow;
434: }
1.25 paf 435:
436: // execute @main[]
1.248 paf 437: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 438: if(!body_string)
1.366 moko 439: throw Exception(PARSER_RUNTIME, 0, "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 440:
1.250 paf 441: // extract response body
1.344 moko 442: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 443: bool as_attachment=body_value!=0;
444: if(!body_value)
1.344 moko 445: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 446: if(!body_value)
447: body_value=new VString(*body_string); // just result of ^main[]
448:
1.119 paf 449: // @postprocess
1.308 misha 450: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 451: if(Junction* junction=value->get_junction())
1.91 paf 452: if(const Method *method=junction->method) {
453: // preparing to pass parameters to
1.119 paf 454: // @postprocess[data]
1.363 moko 455: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
456: frame.store_params(&body_value, 1);
457: call(frame);
458: body_value=&frame.result();
459: });
1.91 paf 460: }
1.90 paf 461:
1.303 misha 462: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 463:
1.45 paf 464: // OK. write out the result
1.248 paf 465: output_result(body_file, header_only, as_attachment);
1.183 paf 466:
1.171 parser 467: } catch(const Exception& e) { // request handling problem
1.268 paf 468: try {
1.76 paf 469: // we're returning not result, but error explanation
1.269 paf 470:
471: Request::Exception_details details=get_details(e);
472: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 473:
474: // reset language to default
475: flang=fdefault_lang;
476:
477: // reset response
478: response.fields().clear();
479:
480: // this is what we'd return in $response:body
481: const String* body_string=0;
482:
483: // maybe we'd be lucky enough as to report an error
484: // in a gracefull way...
1.308 misha 485: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 486: if(Junction* junction=value->get_junction()) {
487: if(const Method *method=junction->method) {
1.287 misha 488: // preparing to pass parameters to
489: // @unhandled_exception[exception;stack]
490:
491: // $stack[^table::create{name file lineno colno}]
492: Table::columns_type stack_trace_columns(new ArrayString);
493: *stack_trace_columns+=new String("name");
494: *stack_trace_columns+=new String("file");
495: *stack_trace_columns+=new String("lineno");
496: *stack_trace_columns+=new String("colno");
497: Table& stack_trace=*new Table(stack_trace_columns);
498: if(!exception_trace.is_empty()/*signed!*/)
499: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
500: Trace trace=exception_trace.get(i);
501: Table::element_type row(new ArrayString);
502:
503: *row+=trace.name(); // name column
504: Operation::Origin origin=trace.origin();
505: if(origin.file_no) {
506: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
507: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
508: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
509: }
510: stack_trace+=row;
511: }
512:
1.323 moko 513: // future $response:body=
514: // execute ^unhandled_exception[exception;stack]
515: 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)
516:
1.300 misha 517: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.363 moko 518: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
519: frame.store_params(params, 2);
520: call(frame);
521: body_string=&frame.result().as_string();
522: });
1.233 paf 523: }
1.30 paf 524: }
1.258 paf 525: }
526:
527: if(!body_string) { // couldn't report an error beautifully?
528: // doing that ugly
529:
530: // future $response:content-type
1.344 moko 531: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 532: // future $response:body
1.269 paf 533: body_string=new String(exception_cstr);
1.258 paf 534: }
1.41 paf 535:
1.258 paf 536: VString body_vstring(*body_string);
1.303 misha 537: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 538:
1.273 paf 539: // conditionally log it
540: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
541: if(!vhandled || !vhandled->as_bool()) {
542: SAPI::log(sapi_info, "%s", exception_cstr);
543: }
544:
1.258 paf 545: // ERROR. write it out
546: output_result(body_file, header_only, false);
1.287 misha 547:
1.273 paf 548: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 549: Request::Exception_details details=get_details(e);
550: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 551: // unconditionally log the beast
552: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 553:
1.366 moko 554: throw Exception(0, 0, "in %s", exception_cstr);
1.268 paf 555: }
1.1 paf 556: }
557: }
558:
1.266 paf 559: uint Request::register_file(String::Body file_spec) {
1.248 paf 560: file_list+=file_spec;
561: return file_list.count()-1;
562: }
563:
1.366 moko 564: void Request::use_file_directly(VStateless_class& aclass, const String& file_spec, bool fail_on_read_problem, bool fail_on_file_absence) {
1.73 paf 565: // cyclic dependence check
1.318 misha 566: if(used_files.get(file_spec))
1.248 paf 567: return;
1.318 misha 568: used_files.put(file_spec, true);
569:
570: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
571: if(!entry_exists(file_spec))
572: return;
573:
574: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
575: use_buf(aclass, source, 0, register_file(file_spec));
576: }
577:
578:
1.349 moko 579: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/) {
1.326 misha 580: if(file_name.is_empty())
1.366 moko 581: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 582:
1.318 misha 583: const String* filespec=0;
584:
585: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
586: filespec=&absolute(file_name);
587: else if(use_filespec){ // search in current dir first
1.331 misha 588: size_t last_slash_pos=use_filespec->strrpbrk("/");
589: if(last_slash_pos!=STRING_NOT_FOUND)
590: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 591: }
592:
593: if(!filespec){
594: // prevent multiple scan CLASS_PATH for searching one file
595: if(searched_along_class_path.get(file_name))
596: return;
597: searched_along_class_path.put(file_name, true);
1.308 misha 598: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 599: if(element->is_string()) {
1.318 misha 600: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 601: } else if(Table *table=element->get_table()) {
1.318 misha 602: for(size_t i=table->count(); i--; ) {
1.248 paf 603: const String& path=*(*table->get(i))[0];
1.318 misha 604: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 605: break; // found along class_path
606: }
607: } else
1.366 moko 608: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 609: if(!filespec)
1.366 moko 610: throw Exception(PARSER_RUNTIME, &file_name, "not found along $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 611: } else
1.366 moko 612: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 613: }
1.230 paf 614:
1.318 misha 615: use_file_directly(aclass, *filespec);
1.16 paf 616: }
617:
1.364 moko 618: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 619: static String use("USE");
620: try {
1.364 moko 621: static VHash* voptions=new VHash();
622: if(const Method *method=main_class.get_method(use_method_name)){
623: Value *params[]={new VString(file_name), voptions};
624: voptions->hash().put(origin_key, new VString(*use_filespec));
625:
626: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
627: frame.store_params(params, 2);
628: // we don't need the result
629: call(frame);
630: });
631: }
1.349 moko 632: } catch (...) {
633: exception_trace.push(Trace(&use, origin));
634: rethrow;
635: }
636: }
1.208 paf 637:
1.358 moko 638: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
639: // temporary zero @conf to avoid it second execution
1.248 paf 640: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 641: // temporary zero @auto to avoid it second execution
1.248 paf 642: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 643:
1.295 misha 644: // compile loaded classes
645: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 646:
1.248 paf 647: VString* vfilespec=
648: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 649:
650: for(size_t i=0; i<cclasses.count(); i++){
651: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 652:
653: // locate and execute possible @conf[] static
1.358 moko 654: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass, conf_method_name, vfilespec, false/*no string result needed*/);
1.295 misha 655: if(executed.method)
656: configure_admin(cclass/*, executed.method->name*/);
657:
658: // locate and execute possible @auto[] static
1.358 moko 659: execute_nonvirtual_method(cclass, auto_method_name, vfilespec, false/*no result needed*/);
1.336 moko 660:
661: cclass.enable_default_setter();
1.295 misha 662: }
1.19 paf 663: }
664:
1.248 paf 665: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 666: char *hpath=pa_strdup(apath);
1.248 paf 667: String& result=*new String;
668: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 669: result << hpath << "/";
1.248 paf 670: result << relative_name;
671: return result;
1.19 paf 672: }
673:
1.77 paf 674: const String& Request::absolute(const String& relative_name) {
1.217 paf 675: if(relative_name.first_char()=='/') {
1.341 moko 676: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 677: result << relative_name;
1.19 paf 678: return result;
679: } else
1.248 paf 680: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 681: #ifdef WIN32
682: || relative_name.pos(":")==1 // DRIVE:
683: || relative_name.starts_with("\\\\") // UNC1
684: || relative_name.starts_with("//") // UNC2
685: #endif
686: )
687: return relative_name;
688: else
1.248 paf 689: return relative(request_info.path_translated, relative_name);
1.1 paf 690: }
1.45 paf 691:
1.267 paf 692: #ifndef DOXYGEN
693: class Add_header_attribute_info
694: {
695: public:
696: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
697: Request& r;
698: bool add_last_modified;
699: };
700: #endif
1.344 moko 701: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
702: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 703: return;
1.290 misha 704:
1.345 moko 705: if(name==LAST_MODIFIED_NAME_UPPER)
706: info->add_last_modified=false;
707:
1.316 misha 708: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 709:
1.267 paf 710: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 711: aname,
1.316 misha 712: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 713: );
1.267 paf 714: }
715:
1.366 moko 716: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 717: // transcode text body when "text/*" or simple result
718: String::C output(body_file.value_ptr(), body_file.value_size());
719: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 720: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 721:
1.311 misha 722: // prepare header: Content-Length
723: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 724:
725: // send header
726: SAPI::send_header(r.sapi_info);
727:
728: // send body
729: if(!header_only)
730: SAPI::send_body(r.sapi_info, output.str, output.length);
731: }
732:
733: #ifndef DOXYGEN
734: struct Range
735: {
736: size_t start;
737: size_t end;
738: };
739: #endif
1.313 misha 740: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 741: const char *p = s->cstr();
742: if(s->starts_with("bytes="))
743: p += 6;
744: Range r;
745: while(*p){
746: r.start = (size_t)-1;
747: r.end = (size_t)-1;
748: if(*p >= '0' && *p <= '9'){
749: r.start = atol(p);
750: while(*p>='0' && *p<='9') ++p;
751: }
752: if(*p++ != '-') break;
753: if(*p >= '0' && *p <= '9'){
754: r.end = atol(p);
755: while(*p>='0' && *p<='9') ++p;
756: }
757: if(*p == ',') ++p;
758: ar += r;
759: }
1.101 paf 760: }
1.267 paf 761:
1.366 moko 762: static void output_pieces(Request& r, bool header_only, const String& filename, size_t content_length, Value& date, bool add_last_modified) {
1.315 misha 763: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 764:
1.267 paf 765: const size_t BUFSIZE = 10*0x400;
766: char buf[BUFSIZE];
1.339 moko 767: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 768: size_t offset=0;
769: size_t part_length=content_length;
770: if(range){
771: Array<Range> ar;
772: parse_range(new String(range), ar);
773: size_t count = ar.count();
774: if(count == 1){
775: Range &rg = ar.get_ref(0);
776: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 777: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 778: return;
779: }
780: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
781: rg.start = content_length - rg.end;
782: rg.end = content_length;
783: offset += rg.start;
784: part_length = rg.end-rg.start;
785: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
786: rg.end = content_length-1;
787: offset += rg.start;
788: part_length -= rg.start;
789: }
790: if(part_length == 0){
1.311 misha 791: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 792: return;
793: }
1.311 misha 794: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 795: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 796: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 797: }else if(count != 0){
1.311 misha 798: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 799: return;
800: }
801: }
802:
803:
1.311 misha 804: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 805:
1.314 misha 806: if(add_last_modified)
1.315 misha 807: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 808:
1.267 paf 809: SAPI::send_header(r.sapi_info);
810:
811: const String& filespec=r.absolute(filename);
812:
813: size_t sent = 0;
814: if(!header_only){
815: size_t to_read = 0;
816: size_t size = 0;
817: do{
818: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
819: File_read_result read_result=file_read(r.charsets, filespec,
820: false /*as text*/, 0/*params*/, true/*fail on problem*/,
821: buf, offset, to_read);
822: to_read=read_result.length;
823: if(to_read == 0)
824: break;
825: offset += to_read;
826:
827: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
828: sent += size;
829: if(size != to_read)
830: break;
831: part_length -= to_read;
832: }while(part_length);
833: }
834: }
835:
1.248 paf 836: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 837: // header: cookies
1.248 paf 838: cookie.output_result(sapi_info);
1.51 paf 839:
1.314 misha 840: // _file_ content-type might be specified
1.267 paf 841: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 842:
1.314 misha 843: // Content-Disposition
1.267 paf 844: Value* vfile_name=body_file->fields().get(name_name);
845: if(!vfile_name) {
846: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 847: if(vfile_name) {
848: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 849: if(char *after_slash=rsplit(name_cstr, '\\'))
850: name_cstr=after_slash;
851: if(char *after_slash=rsplit(name_cstr, '/'))
852: name_cstr=after_slash;
1.327 misha 853: vfile_name=new VString(*new String(name_cstr));
1.274 paf 854: }
1.267 paf 855: }
856: if(vfile_name) {
857: const String& sfile_name=vfile_name->as_string();
858: if(sfile_name!=NONAME_DAT) {
1.283 misha 859: VHash& hash=*new VHash();
860: HashStringValue &h=hash.hash();
1.288 misha 861: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 862: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 863:
1.344 moko 864: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 865:
866: if(!body_file_content_type)
867: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 868: }
1.267 paf 869: }
870:
1.312 misha 871: // set Content-Type
1.314 misha 872: if(body_file_content_type) {
873: // body file content type
1.344 moko 874: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 875: } else {
876: // default content type
1.344 moko 877: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 878: }
1.312 misha 879:
1.314 misha 880: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 881: Add_header_attribute_info info(*this);
1.281 paf 882: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 883:
1.267 paf 884: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 885: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 886: const String& sresponse_body_file=vresponse_body_file->as_string();
1.367 moko 887: uint64_t content_length=0;
1.267 paf 888: time_t atime=0, mtime=0, ctime=0;
1.366 moko 889: file_stat(absolute(sresponse_body_file), content_length, atime, mtime, ctime);
1.267 paf 890:
891: VDate* vdate=0;
892: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 893: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 894: vdate=static_cast<VDate*>(vdatep);
895: else
1.286 misha 896: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 897: }
898: if(!vdate)
1.346 moko 899: vdate=new VDate((pa_time_t)mtime);
1.62 paf 900:
1.368 moko 901: output_pieces(*this, header_only, sresponse_body_file, (size_t)content_length, *vdate, info.add_last_modified);
1.267 paf 902: } else {
1.314 misha 903: if(body_file_content_type)
904: if(HashStringValue *hash=body_file_content_type->get_hash())
905: body_file_content_type=hash->get(value_name);
906:
1.366 moko 907: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 908: }
1.50 paf 909: }
1.104 paf 910:
1.328 misha 911: const String& Request::mime_type_of(const String* file_name) {
912: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
913: }
914:
1.248 paf 915: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 916: if(mime_types)
1.248 paf 917: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
918: String sext(++cext);
1.246 paf 919: Table::Action_options options;
1.342 moko 920: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 921: if(const String* result=mime_types->item(1))
922: return *result;
1.104 paf 923: else
1.366 moko 924: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 925: }
1.104 paf 926: }
1.248 paf 927:
928: return *new String("application/octet-stream");
929: }
930:
1.365 moko 931: const String* Request::get_used_filespec(uint file_no){
1.318 misha 932: if(file_no < file_list.count())
933: return new String(file_list[file_no], String::L_TAINTED);
934: return 0;
935: }
936:
1.248 paf 937: #ifdef XML
1.280 paf 938: xmlChar* Request::transcode(const String& s) {
1.248 paf 939: return charsets.source().transcode(s);
940: }
941:
1.280 paf 942: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 943: return charsets.source().transcode(s);
944: }
945:
1.280 paf 946: const String& Request::transcode(const xmlChar* s) {
1.248 paf 947: return charsets.source().transcode(s);
1.233 paf 948: }
1.248 paf 949: #endif
950:
1.349 moko 951: Request::Exception_details Request::get_details(const Exception& e) {
952: const String* problem_source=e.problem_source();
953: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
954: Operation::Origin origin={0, 0, 0};
1.248 paf 955:
1.349 moko 956: if(!exception_trace.is_empty()) {
957: Trace bottom=exception_trace.bottom_value();
1.350 moko 958: origin=bottom.origin();
959: if(!problem_source) { // we don't know who trigged the bug
960: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
961: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
962: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 963: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
964: } else {
965: // stack top contains not us, leaving intact to help ^throw
1.279 paf 966: }
1.248 paf 967: }
968:
969: // $.type
970: if(const char* type=e.type(true))
971: hash.put(exception_type_part_name, new VString(*new String(type)));
972:
973: // $.source
1.349 moko 974: if(problem_source)
975: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 976:
1.349 moko 977: // $.file $.lineno $.colno
978: if(origin.file_no){
1.347 moko 979: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
980: hash.put("lineno", new VInt(1+origin.line));
981: hash.put("colno", new VInt(1+origin.col));
1.248 paf 982: }
983:
984: // $.comment
985: if(const char* comment=e.comment(true))
1.349 moko 986: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 987:
988: // $.handled(0)
1.299 misha 989: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 990:
1.349 moko 991: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 992: }
1.337 moko 993:
994: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
995: frequest(arequest),
996: fwhere(awhere),
997: fname(aname),
998: saved(awhere.get_element(aname))
999: {
1000: Junction* junction;
1001: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1002: saved=0;
1003: frequest.put_element(fwhere, aname, awhat);
1004: }
1005:
1006: Temp_value_element::~Temp_value_element() {
1007: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1008: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to pa_request.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / main