Annotation of parser3/src/main/pa_request.C, revision 1.342
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.329 moko 4: Copyright (c) 2001-2012 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:
1.342 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.341 2015/04/06 22:27:26 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: const char* ORIGINS_CONTENT_TYPE="text/plain";
47:
48: // defines for globals
49:
50: #define MAIN_METHOD_NAME "main"
51: #define AUTO_METHOD_NAME "auto"
1.309 misha 52: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 53: #define BODY_NAME "body"
54: #define EXCEPTION_TYPE_PART_NAME "type"
55: #define EXCEPTION_SOURCE_PART_NAME "source"
56: #define EXCEPTION_COMMENT_PART_NAME "comment"
57:
58: // globals
59:
60: const String main_method_name(MAIN_METHOD_NAME);
61: const String auto_method_name(AUTO_METHOD_NAME);
1.309 misha 62: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 63:
1.248 paf 64: const String body_name(BODY_NAME);
65: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
66: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
67: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
68: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
69:
70: // defines for statics
71:
72: #define CHARSETS_NAME "CHARSETS"
73: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 74: #define STRICT_VARS_NAME "STRICT-VARS"
1.248 paf 75: #define ORIGINS_MODE_NAME "ORIGINS"
76: #define CONF_METHOD_NAME "conf"
77: #define POST_PROCESS_METHOD_NAME "postprocess"
78: #define DOWNLOAD_NAME "download"
79: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 80: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 81:
82: // statics
83:
84: static const String charsets_name(CHARSETS_NAME);
85: static const String main_class_name(MAIN_CLASS_NAME);
86: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 87: static const String strict_vars_name(STRICT_VARS_NAME);
1.248 paf 88: static const String origins_mode_name(ORIGINS_MODE_NAME);
89: static const String conf_method_name(CONF_METHOD_NAME);
90: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
91: static const String download_name(DOWNLOAD_NAME);
92: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 93: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 94:
95: // defines
1.82 paf 96:
1.233 paf 97: // op.C
1.248 paf 98: VStateless_class& VClassMAIN_create();
1.123 paf 99:
1.157 parser 100: //
1.248 paf 101: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 102: String::Language adefault_lang):
1.248 paf 103: // private
104: anti_endless_execute_recoursion(0),
105:
106: // public
1.335 moko 107: allow_class_replace(false),
1.248 paf 108: method_frame(0),
109: rcontext(0),
110: wcontext(0),
111: flang(adefault_lang),
1.191 paf 112: fconnection(0),
1.307 misha 113: finterrupted(false),
114: fskip(SKIP_NOTHING),
115: fin_cycle(0),
1.248 paf 116:
117: // public
1.257 paf 118: request_info(arequest_info),
1.248 paf 119: sapi_info(asapi_info),
120: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
121:
122: main_class(VClassMAIN_create()),
1.260 paf 123: form(*new VForm(charsets, arequest_info)),
1.248 paf 124: mail(*new VMail),
125: response(*new VResponse(arequest_info, charsets)),
1.298 misha 126: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 127: console(*new VConsole),
1.248 paf 128:
129: // private
130: configure_admin_done(false),
131:
132: // private defaults
133: fdefault_lang(adefault_lang),
134: // private mime types
135: mime_types(0)
1.157 parser 136: {
1.261 paf 137: pa_register_thread_request(*this);
138:
1.248 paf 139: // file_no=0 => unknown
1.263 paf 140: file_list+=String::Body("UNKNOWN");
141: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 142:
1.178 paf 143: // maybe expire old caches
1.264 paf 144: cache_managers->maybe_expire();
1.178 paf 145:
1.157 parser 146: /// directly used
1.233 paf 147: // MAIN class, operators
1.235 paf 148: classes().put(main_class.name(), &main_class);
1.157 parser 149: // classes:
150: // table, file, random, mail, image, ...
1.248 paf 151: methoded_array().register_directly_used(*this);
1.157 parser 152:
153: /// methodless
154: // env class
1.249 paf 155: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 156: // status class
1.325 moko 157: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 158: // request class
1.339 moko 159: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 160: // cookie class
1.249 paf 161: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 162: // console class
1.285 misha 163: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 164: /// methoded
165: // response class
1.248 paf 166: classes().put(response.get_class()->name(), &response);
1.157 parser 167:
168: /// bases used
169: // form class
1.248 paf 170: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 171: // mail class
1.248 paf 172: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 173: // math class
1.248 paf 174: {
175: Value& math=*new VMath;
176: classes().put(math.get_class()->base_class()->name(), &math);
177: }
178: // memory class
179: {
180: Value& memory=*new VMemory;
181: classes().put(memory.get_class()->base_class()->name(), &memory);
182: }
1.117 paf 183: }
1.192 paf 184:
185: Request::~Request() {
186: #ifdef XML
187: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 188: if(const char* xml_generic_errors=xmlGenericErrors()) {
189: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 190: pa_free((void *)xml_generic_errors);
1.192 paf 191: }
192: #endif
193: }
1.236 paf 194:
1.248 paf 195: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 196:
1.309 misha 197: Value* Request::get_class(const String& name){
198: Value* result=classes().get(name);
1.313 misha 199: if(!result)
1.309 misha 200: if(Value* value=main_class.get_element(autouse_method_name))
201: if(Junction* junction=value->get_junction())
202: if(const Method *method=junction->method) {
203: Value *vname=new VString(name);
1.322 moko 204: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 205:
206: frame.store_params(&vname, 1);
207: // we don't need the result
1.323 moko 208: execute_method(frame);
1.309 misha 209:
210: result=classes().get(name);
211: }
1.313 misha 212:
1.309 misha 213: return result;
214: }
215:
1.248 paf 216: static void load_charset(HashStringValue::key_type akey,
217: HashStringValue::value_type avalue,
218: Request_charsets* charsets) {
1.249 paf 219: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 220: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 221: }
1.248 paf 222: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 223: if(configure_admin_done)
1.286 misha 224: throw Exception(PARSER_RUNTIME,
1.248 paf 225: 0,
1.208 paf 226: "parser already configured");
227: configure_admin_done=true;
228:
1.227 paf 229: // charsets must only be specified in method_frame config
1.208 paf 230: // so that users would not interfere
231:
232: /* $MAIN:CHARSETS[
233: $.charsetname1[/full/path/to/charset/file.cfg]
234: ...
235: ]
236: */
1.308 misha 237: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 ! moko 238: if(!vcharsets->is_string()) {
1.248 paf 239: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 240: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 241: else
1.286 misha 242: throw Exception(PARSER_RUNTIME,
1.240 paf 243: 0,
244: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 ! moko 245: }
1.208 paf 246: }
247:
1.330 moko 248: #ifdef STRICT_VARS
1.332 moko 249: VVoid::strict_vars=false;
1.330 moko 250: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
251: if(strict_vars->is_bool())
252: VVoid::strict_vars=strict_vars->as_bool();
253: else
254: throw Exception(PARSER_RUNTIME,
255: 0,
256: "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
257: }
258: #endif
259:
1.227 paf 260: // configure method_frame options
1.208 paf 261: // until someone with less privileges have overriden them
1.248 paf 262: methoded_array().configure_admin(*this);
1.208 paf 263: }
1.150 parser 264:
1.269 paf 265: const char* Request::get_exception_cstr(
266: const Exception& e,
267: Request::Exception_details& details) {
268: #define PA_URI_FORMAT "%s: "
269: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
270: #define PA_SOURCE_FORMAT "'%s' "
271: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
272: char* result=new(PointerFreeGC) char[MAX_STRING];
273:
274: if(details.problem_source) { // do we know the guy?
275: if(details.trace) { // do whe know where he came from?
276: Operation::Origin origin=details.trace.origin();
277: snprintf(result, MAX_STRING,
278: PA_URI_FORMAT
279: PA_ORIGIN_FILE_POS_FORMAT
280: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
281: request_info.uri,
282: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
283: details.problem_source->cstr(),
284: e.comment(), e.type()
285: );
286: } else
287: snprintf(result, MAX_STRING,
288: PA_URI_FORMAT
289: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
290: request_info.uri,
291: details.problem_source->cstr(),
292: e.comment(), e.type()
293: );
294: } else
295: snprintf(result, MAX_STRING,
296: PA_URI_FORMAT
297: PA_COMMENT_TYPE_FORMAT,
298: request_info.uri,
299: e.comment(), e.type()
300: );
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
392: Value* body_value=response.fields().get(download_name); // $response:download?
393: bool as_attachment=body_value!=0;
394: if(!body_value)
395: body_value=response.fields().get(body_name); // $response:body
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
1.314 misha 483: response.fields().put(http_content_type, 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:
538: void Request::use_file(VStateless_class& aclass,
539: const String& file_name,
540: const String* use_filespec/*absolute*/) {
1.73 paf 541:
1.326 misha 542: if(file_name.is_empty())
543: throw Exception(PARSER_RUNTIME,
544: 0,
545: "usage failed - no filename was specified");
546:
1.318 misha 547: const String* filespec=0;
548:
549: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
550: filespec=&absolute(file_name);
551: else if(use_filespec){ // search in current dir first
1.331 misha 552: size_t last_slash_pos=use_filespec->strrpbrk("/");
553: if(last_slash_pos!=STRING_NOT_FOUND)
554: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 555: }
556:
557: if(!filespec){
558: // prevent multiple scan CLASS_PATH for searching one file
559: if(searched_along_class_path.get(file_name))
560: return;
561: searched_along_class_path.put(file_name, true);
1.308 misha 562: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 563: if(element->is_string()) {
1.318 misha 564: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 565: } else if(Table *table=element->get_table()) {
1.318 misha 566: for(size_t i=table->count(); i--; ) {
1.248 paf 567: const String& path=*(*table->get(i))[0];
1.318 misha 568: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 569: break; // found along class_path
570: }
571: } else
1.286 misha 572: throw Exception(PARSER_RUNTIME,
1.233 paf 573: 0,
574: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 575: if(!filespec)
1.286 misha 576: throw Exception(PARSER_RUNTIME,
1.233 paf 577: &file_name,
578: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 579: } else
1.286 misha 580: throw Exception(PARSER_RUNTIME,
1.153 parser 581: &file_name,
1.203 paf 582: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 583: }
1.230 paf 584:
1.318 misha 585: use_file_directly(aclass, *filespec);
1.16 paf 586: }
587:
1.208 paf 588:
1.248 paf 589: void Request::use_buf(VStateless_class& aclass,
1.318 misha 590: const char* source, const String* main_alias,
591: uint file_no,
592: int line_no_offset) {
1.233 paf 593: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 594: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 595: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 596: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 597:
1.295 misha 598: // compile loaded classes
599: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 600:
1.248 paf 601: VString* vfilespec=
602: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 603:
604: for(size_t i=0; i<cclasses.count(); i++){
605: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 606:
607: // locate and execute possible @conf[] static
1.295 misha 608: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
609: conf_method_name, vfilespec,
610: false/*no string result needed*/);
611: if(executed.method)
612: configure_admin(cclass/*, executed.method->name*/);
613:
614: // locate and execute possible @auto[] static
615: execute_nonvirtual_method(cclass,
616: auto_method_name, vfilespec,
617: false/*no result needed*/);
1.336 moko 618:
619: cclass.enable_default_setter();
1.295 misha 620: }
1.19 paf 621: }
622:
1.248 paf 623: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 624: char *hpath=pa_strdup(apath);
1.248 paf 625: String& result=*new String;
626: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 627: result << hpath << "/";
1.248 paf 628: result << relative_name;
629: return result;
1.19 paf 630: }
631:
1.77 paf 632: const String& Request::absolute(const String& relative_name) {
1.217 paf 633: if(relative_name.first_char()=='/') {
1.341 moko 634: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 635: result << relative_name;
1.19 paf 636: return result;
637: } else
1.248 paf 638: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 639: #ifdef WIN32
640: || relative_name.pos(":")==1 // DRIVE:
641: || relative_name.starts_with("\\\\") // UNC1
642: || relative_name.starts_with("//") // UNC2
643: #endif
644: )
645: return relative_name;
646: else
1.248 paf 647: return relative(request_info.path_translated, relative_name);
1.1 paf 648: }
1.45 paf 649:
1.267 paf 650: #ifndef DOXYGEN
651: class Add_header_attribute_info
652: {
653: public:
654: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
655: Request& r;
656: bool add_last_modified;
657: };
658: #endif
1.248 paf 659: static void add_header_attribute(
1.290 misha 660: HashStringValue::key_type name,
661: HashStringValue::value_type value,
1.267 paf 662: Add_header_attribute_info* info) {
1.290 misha 663: if(name==BODY_NAME
664: || name==DOWNLOAD_NAME
665: || name==CHARSET_NAME)
1.101 paf 666: return;
1.290 misha 667:
1.316 misha 668: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 669:
1.267 paf 670: SAPI::add_header_attribute(info->r.sapi_info,
1.303 misha 671: aname,
1.316 misha 672: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 673: );
1.267 paf 674:
1.290 misha 675: if(strcasecmp(aname, "last-modified")==0)
1.303 misha 676: info->add_last_modified=false;
1.267 paf 677: }
678:
679: static void output_sole_piece(Request& r,
680: bool header_only,
681: VFile& body_file,
682: Value* body_file_content_type) {
683: // transcode text body when "text/*" or simple result
684: String::C output(body_file.value_ptr(), body_file.value_size());
685: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
686: output=Charset::transcode(output,
687: r.charsets.source(),
688: r.charsets.client());
689:
1.311 misha 690: // prepare header: Content-Length
691: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 692:
693: // send header
694: SAPI::send_header(r.sapi_info);
695:
696: // send body
697: if(!header_only)
698: SAPI::send_body(r.sapi_info, output.str, output.length);
699: }
700:
701: #ifndef DOXYGEN
702: struct Range
703: {
704: size_t start;
705: size_t end;
706: };
707: #endif
1.313 misha 708: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 709: const char *p = s->cstr();
710: if(s->starts_with("bytes="))
711: p += 6;
712: Range r;
713: while(*p){
714: r.start = (size_t)-1;
715: r.end = (size_t)-1;
716: if(*p >= '0' && *p <= '9'){
717: r.start = atol(p);
718: while(*p>='0' && *p<='9') ++p;
719: }
720: if(*p++ != '-') break;
721: if(*p >= '0' && *p <= '9'){
722: r.end = atol(p);
723: while(*p>='0' && *p<='9') ++p;
724: }
725: if(*p == ',') ++p;
726: ar += r;
727: }
1.101 paf 728: }
1.267 paf 729:
730: static void output_pieces(Request& r,
731: bool header_only,
732: const String& filename,
733: size_t content_length,
734: Value& date,
735: bool add_last_modified)
736: {
1.315 misha 737: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 738:
1.267 paf 739: const size_t BUFSIZE = 10*0x400;
740: char buf[BUFSIZE];
1.339 moko 741: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 742: size_t offset=0;
743: size_t part_length=content_length;
744: if(range){
745: Array<Range> ar;
746: parse_range(new String(range), ar);
747: size_t count = ar.count();
748: if(count == 1){
749: Range &rg = ar.get_ref(0);
750: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 751: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 752: return;
753: }
754: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
755: rg.start = content_length - rg.end;
756: rg.end = content_length;
757: offset += rg.start;
758: part_length = rg.end-rg.start;
759: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
760: rg.end = content_length-1;
761: offset += rg.start;
762: part_length -= rg.start;
763: }
764: if(part_length == 0){
1.311 misha 765: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 766: return;
767: }
1.311 misha 768: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 769: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 770: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 771: }else if(count != 0){
1.311 misha 772: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 773: return;
774: }
775: }
776:
777:
1.311 misha 778: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 779:
1.314 misha 780: if(add_last_modified)
1.315 misha 781: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 782:
1.267 paf 783: SAPI::send_header(r.sapi_info);
784:
785: const String& filespec=r.absolute(filename);
786:
787: size_t sent = 0;
788: if(!header_only){
789: size_t to_read = 0;
790: size_t size = 0;
791: do{
792: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
793: File_read_result read_result=file_read(r.charsets, filespec,
794: false /*as text*/, 0/*params*/, true/*fail on problem*/,
795: buf, offset, to_read);
796: to_read=read_result.length;
797: if(to_read == 0)
798: break;
799: offset += to_read;
800:
801: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
802: sent += size;
803: if(size != to_read)
804: break;
805: part_length -= to_read;
806: }while(part_length);
807: }
808: }
809:
1.248 paf 810: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 811: // header: cookies
1.248 paf 812: cookie.output_result(sapi_info);
1.51 paf 813:
1.314 misha 814: // _file_ content-type might be specified
1.267 paf 815: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 816:
1.314 misha 817: // Content-Disposition
1.267 paf 818: Value* vfile_name=body_file->fields().get(name_name);
819: if(!vfile_name) {
820: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 821: if(vfile_name) {
822: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 823: if(char *after_slash=rsplit(name_cstr, '\\'))
824: name_cstr=after_slash;
825: if(char *after_slash=rsplit(name_cstr, '/'))
826: name_cstr=after_slash;
1.327 misha 827: vfile_name=new VString(*new String(name_cstr));
1.274 paf 828: }
1.267 paf 829: }
830: if(vfile_name) {
831: const String& sfile_name=vfile_name->as_string();
832: if(sfile_name!=NONAME_DAT) {
1.283 misha 833: VHash& hash=*new VHash();
834: HashStringValue &h=hash.hash();
1.288 misha 835: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.327 misha 836: h.put(content_disposition_filename_name, new VString(String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 837:
1.311 misha 838: response.fields().put(content_disposition, &hash);
1.267 paf 839:
840: if(!body_file_content_type)
841: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 842: }
1.267 paf 843: }
844:
1.312 misha 845: // set Content-Type
1.314 misha 846: if(body_file_content_type) {
847: // body file content type
848: response.fields().put(content_type_name, body_file_content_type);
849: } else {
850: // default content type
851: response.fields().put_dont_replace(content_type_name, new VString(*new String(DEFAULT_CONTENT_TYPE)));
852: }
1.312 misha 853:
1.314 misha 854: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 855: Add_header_attribute_info info(*this);
1.281 paf 856: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 857:
1.267 paf 858: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 859: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 860: const String& sresponse_body_file=vresponse_body_file->as_string();
861: size_t content_length=0;
862: time_t atime=0, mtime=0, ctime=0;
863: file_stat(absolute(sresponse_body_file),
864: content_length,
865: atime, mtime, ctime);
866:
867: VDate* vdate=0;
868: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 869: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 870: vdate=static_cast<VDate*>(vdatep);
871: else
1.286 misha 872: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 873: }
874: if(!vdate)
875: vdate=new VDate(mtime);
1.62 paf 876:
1.267 paf 877: output_pieces(*this, header_only,
878: sresponse_body_file,
879: content_length,
880: *vdate,
881: info.add_last_modified);
882: } else {
1.314 misha 883: if(body_file_content_type)
884: if(HashStringValue *hash=body_file_content_type->get_hash())
885: body_file_content_type=hash->get(value_name);
886:
1.267 paf 887: output_sole_piece(*this, header_only,
888: *body_file, body_file_content_type);
889: }
1.50 paf 890: }
1.104 paf 891:
1.328 misha 892: const String& Request::mime_type_of(const String* file_name) {
893: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
894: }
895:
1.248 paf 896: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 897: if(mime_types)
1.248 paf 898: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
899: String sext(++cext);
1.246 paf 900: Table::Action_options options;
1.342 ! moko 901: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 902: if(const String* result=mime_types->item(1))
903: return *result;
1.104 paf 904: else
1.286 misha 905: throw Exception(PARSER_RUNTIME,
1.248 paf 906: 0,
1.212 paf 907: MIME_TYPES_NAME " table column elements must not be empty");
1.342 ! moko 908: }
1.104 paf 909: }
1.248 paf 910:
911: return *new String("application/octet-stream");
912: }
913:
1.318 misha 914: const String* Request::get_used_filename(uint file_no){
915: if(file_no < file_list.count())
916: return new String(file_list[file_no], String::L_TAINTED);
917: return 0;
918: }
919:
1.248 paf 920: #ifdef XML
1.280 paf 921: xmlChar* Request::transcode(const String& s) {
1.248 paf 922: return charsets.source().transcode(s);
923: }
924:
1.280 paf 925: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 926: return charsets.source().transcode(s);
927: }
928:
1.280 paf 929: const String& Request::transcode(const xmlChar* s) {
1.248 paf 930: return charsets.source().transcode(s);
1.233 paf 931: }
1.248 paf 932: #endif
933:
934:
935: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
936: Trace result;
937: if(!is_empty()) {
938: result=bottom_value();
939: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 940: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 941: fbottom++;
942: } else if(result.name()==problem_source) // it is that same guy?
943: fbottom++; // throw away that trace
1.279 paf 944: else {
945: // stack top contains not us,
946: // leaving result intact
947: // it would help ^throw
948: }
1.248 paf 949: }
950:
951: return result;
952: }
953:
954: Request::Exception_details Request::get_details(const Exception& e) {
955: const String* problem_source=e.problem_source();
956: Trace trace=exception_trace.extract_origin(problem_source);
957:
958: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
959:
960: // $.type
961: if(const char* type=e.type(true))
962: hash.put(exception_type_part_name, new VString(*new String(type)));
963:
964: // $.source
965: if(problem_source) {
1.306 misha 966: String& source=*new String(*problem_source, String::L_TAINTED);
1.248 paf 967: hash.put(exception_source_part_name, new VString(source));
968: }
969:
970: // $.file lineno colno
971: if(trace) {
972: const Operation::Origin origin=trace.origin();
1.263 paf 973: hash.put(String::Body("file"),
1.248 paf 974: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 975: hash.put(String::Body("lineno"), new VInt(1+origin.line));
976: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 977: }
978:
979: // $.comment
980: if(const char* comment=e.comment(true))
981: hash.put(exception_comment_part_name,
1.302 misha 982: new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 983:
984: // $.handled(0)
1.299 misha 985: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 986:
1.248 paf 987: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 988: }
1.337 moko 989:
990: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
991: frequest(arequest),
992: fwhere(awhere),
993: fname(aname),
994: saved(awhere.get_element(aname))
995: {
996: Junction* junction;
997: if(saved && (junction=saved->get_junction()) && junction->is_getter)
998: saved=0;
999: frequest.put_element(fwhere, aname, awhat);
1000: }
1001:
1002: Temp_value_element::~Temp_value_element() {
1003: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1004: }
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