Annotation of parser3/src/main/pa_request.C, revision 1.358
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:
1.358 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.357 2016/09/13 16:12:55 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"
1.357 moko 72: #define PROTOTYPE_NAME "OBJECT-PROTOTYPE"
1.248 paf 73: #define CONF_METHOD_NAME "conf"
74: #define POST_PROCESS_METHOD_NAME "postprocess"
75: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 76: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 77:
1.344 moko 78: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
79: #define BODY_NAME_UPPER "BODY"
80:
1.248 paf 81: // statics
82:
83: static const String charsets_name(CHARSETS_NAME);
84: static const String main_class_name(MAIN_CLASS_NAME);
85: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 86: static const String strict_vars_name(STRICT_VARS_NAME);
1.357 moko 87: static const String prototype_name(PROTOTYPE_NAME);
1.248 paf 88: static const String conf_method_name(CONF_METHOD_NAME);
89: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
90: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 91: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 92:
1.344 moko 93: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
94: static const String body_name_upper(BODY_NAME_UPPER);
95:
96: // more static
97:
98: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
99: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
100: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
101: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
102:
1.248 paf 103: // defines
1.82 paf 104:
1.344 moko 105: #define CHARSET_NAME_UPPER "CHARSET"
106: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
107:
1.233 paf 108: // op.C
1.248 paf 109: VStateless_class& VClassMAIN_create();
1.123 paf 110:
1.157 parser 111: //
1.248 paf 112: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 113: String::Language adefault_lang):
1.248 paf 114: // private
115: anti_endless_execute_recoursion(0),
116:
117: // public
1.335 moko 118: allow_class_replace(false),
1.248 paf 119: method_frame(0),
120: rcontext(0),
121: wcontext(0),
122: flang(adefault_lang),
1.191 paf 123: fconnection(0),
1.307 misha 124: finterrupted(false),
125: fskip(SKIP_NOTHING),
126: fin_cycle(0),
1.248 paf 127:
128: // public
1.257 paf 129: request_info(arequest_info),
1.248 paf 130: sapi_info(asapi_info),
131: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
132:
133: main_class(VClassMAIN_create()),
1.260 paf 134: form(*new VForm(charsets, arequest_info)),
1.248 paf 135: mail(*new VMail),
136: response(*new VResponse(arequest_info, charsets)),
1.298 misha 137: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 138: console(*new VConsole),
1.248 paf 139:
140: // private
141: configure_admin_done(false),
142:
143: // private defaults
144: fdefault_lang(adefault_lang),
145: // private mime types
146: mime_types(0)
1.157 parser 147: {
1.261 paf 148: pa_register_thread_request(*this);
149:
1.248 paf 150: // file_no=0 => unknown
1.347 moko 151: file_list+="UNKNOWN";
152: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 153:
1.178 paf 154: // maybe expire old caches
1.264 paf 155: cache_managers->maybe_expire();
1.178 paf 156:
1.157 parser 157: /// directly used
1.233 paf 158: // MAIN class, operators
1.353 moko 159: put_class(&main_class);
1.157 parser 160: // classes:
161: // table, file, random, mail, image, ...
1.248 paf 162: methoded_array().register_directly_used(*this);
1.157 parser 163:
164: /// methodless
1.354 moko 165:
1.157 parser 166: // env class
1.353 moko 167: put_class(new VEnv(asapi_info));
1.175 paf 168: // status class
1.353 moko 169: put_class(new VStatus());
1.157 parser 170: // request class
1.353 moko 171: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 172: // cookie class
1.353 moko 173: put_class(&cookie);
1.253 paf 174: // console class
1.353 moko 175: put_class(&console);
1.354 moko 176:
1.157 parser 177: /// methoded
1.354 moko 178:
1.157 parser 179: // response class
1.353 moko 180: put_class(&response);
1.157 parser 181: // form class
1.353 moko 182: put_class(&form);
1.213 paf 183: // mail class
1.353 moko 184: put_class(&mail);
1.157 parser 185: // math class
1.353 moko 186: put_class(new VMath);
1.248 paf 187: // memory class
1.353 moko 188: put_class(new VMemory);
1.117 paf 189: }
1.192 paf 190:
191: Request::~Request() {
192: #ifdef XML
193: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 194: if(const char* xml_generic_errors=xmlGenericErrors()) {
195: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 196: pa_free((void *)xml_generic_errors);
1.192 paf 197: }
198: #endif
199: }
1.236 paf 200:
1.248 paf 201: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 202:
1.355 moko 203: VStateless_class* Request::get_class(const String& name){
204: VStateless_class* result=classes().get(name);
1.313 misha 205: if(!result)
1.309 misha 206: if(Value* value=main_class.get_element(autouse_method_name))
207: if(Junction* junction=value->get_junction())
208: if(const Method *method=junction->method) {
209: Value *vname=new VString(name);
1.322 moko 210: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 211:
212: frame.store_params(&vname, 1);
213: // we don't need the result
1.323 moko 214: execute_method(frame);
1.309 misha 215:
216: result=classes().get(name);
217: }
1.313 misha 218:
1.309 misha 219: return result;
220: }
221:
1.356 moko 222: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
223: ::charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 224: }
1.356 moko 225:
1.248 paf 226: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 227: if(configure_admin_done)
1.356 moko 228: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 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: $.charsetname1[/full/path/to/charset/file.cfg]
236: ...
237: ]
238: */
1.308 misha 239: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 240: if(!vcharsets->is_string()) {
1.248 paf 241: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 242: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 243: else
1.356 moko 244: throw Exception(PARSER_RUNTIME, 0, "$" 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();
1.357 moko 253: else
254: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
255: }
256: #endif
257:
258: #ifdef OBJECT_PROTOTYPE
259: VClass::prototype=true;
260: if(Value* prototype=conf_class.get_element(prototype_name)) {
261: if(prototype->is_bool())
262: VClass::prototype=prototype->as_bool();
263: else
264: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" PROTOTYPE_NAME " must be bool");
1.330 moko 265: }
266: #endif
267:
1.227 paf 268: // configure method_frame options
1.208 paf 269: // until someone with less privileges have overriden them
1.248 paf 270: methoded_array().configure_admin(*this);
1.208 paf 271: }
1.150 parser 272:
1.349 moko 273: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
274:
1.269 paf 275: #define PA_URI_FORMAT "%s: "
1.349 moko 276: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
277:
1.269 paf 278: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
279: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 280:
281: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
282: #define PA_SOURCE_VALUE details.problem_source->cstr(),
283:
284: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
285: snprintf(result, MAX_STRING, \
286: PA_URI_FORMAT \
287: f1 f2 \
288: PA_COMMENT_TYPE_FORMAT, \
289: request_info.uri, \
290: v1 v2 \
291: e.comment(), e.type() \
292: );
293:
1.269 paf 294: char* result=new(PointerFreeGC) char[MAX_STRING];
295:
296: if(details.problem_source) { // do we know the guy?
1.349 moko 297: if(details.origin.file_no) // do whe know where he came from?
298: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
299: else
300: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
301: } else {
302: if(details.origin.file_no) // do whe know where he came from?
303: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
304: else
305: EXCEPTION_CSTR(,,,)
306: }
1.269 paf 307:
308: return result;
309: }
1.272 paf 310:
311: void Request::configure() {
312: // configure admin options if not configured yet
313: if(!configure_admin_done)
314: configure_admin(main_class);
315:
316: // configure not-admin=user options
317: methoded_array().configure_user(*this);
318:
319: // $MAIN:MIME-TYPES
1.308 misha 320: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 321: if(Table *table=element->get_table())
322: mime_types=table;
323: }
1.64 paf 324: /**
325: load MAIN class, execute @main.
326: MAIN class consists of all the auto.p files we'd manage to find
327: plus
328: the file user requested us to process
329: all located classes become children of one another,
330: composing class we name 'MAIN'
1.180 paf 331:
332: @test log stack trace
333:
1.64 paf 334: */
1.248 paf 335: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 336: try {
1.211 paf 337: // loading config
338: if(config_filespec) {
1.248 paf 339: const String& filespec=*new String(config_filespec);
1.318 misha 340: use_file_directly(main_class,
341: filespec,
1.248 paf 342: config_fail_on_read_problem,
343: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 344: }
1.8 paf 345:
1.338 moko 346: // filling mail received
347: mail.fill_received(*this);
348:
1.72 paf 349: // loading auto.p files from document_root/..
350: // to the one beside requested file.
351: // all assigned bases from upper dir
352: {
1.248 paf 353: const char* after=request_info.path_translated;
354: size_t drlen=strlen(request_info.document_root);
355: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 356: after+=drlen;
357: if(after[-1]=='/')
358: --after;
359: }
360:
1.248 paf 361: while(const char* before=strchr(after, '/')) {
362: String& sfile_spec=*new String;
363: if(after!=request_info.path_translated) {
364: sfile_spec.append_strdup(
365: request_info.path_translated, before-request_info.path_translated,
366: String::L_CLEAN);
1.152 parser 367: sfile_spec << "/" AUTO_FILE_NAME;
368:
1.318 misha 369: use_file_directly(main_class,
1.248 paf 370: sfile_spec,
371: true /*fail on read problem*/,
372: false /*but ignore absence, sole user*/);
1.115 paf 373: }
1.317 misha 374: for(after=before+1;*after=='/';after++);
1.72 paf 375: }
376: }
1.34 paf 377:
1.272 paf 378: try {
379: // compile requested file
380: String& spath_translated=*new String;
381: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 382: use_file_directly(main_class, spath_translated);
1.272 paf 383:
384: configure();
385: } catch(...) {
386: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
387: rethrow;
388: }
1.25 paf 389:
390: // execute @main[]
1.248 paf 391: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 392: if(!body_string)
1.286 misha 393: throw Exception(PARSER_RUNTIME,
1.248 paf 394: 0,
1.340 moko 395: "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 396:
1.250 paf 397: // extract response body
1.344 moko 398: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 399: bool as_attachment=body_value!=0;
400: if(!body_value)
1.344 moko 401: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 402: if(!body_value)
403: body_value=new VString(*body_string); // just result of ^main[]
404:
1.119 paf 405: // @postprocess
1.308 misha 406: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 407: if(Junction* junction=value->get_junction())
1.91 paf 408: if(const Method *method=junction->method) {
409: // preparing to pass parameters to
1.119 paf 410: // @postprocess[data]
1.322 moko 411: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 412:
1.300 misha 413: frame.store_params(&body_value, 1);
1.323 moko 414: execute_method(frame);
415:
416: body_value=&frame.result().as_value();
1.91 paf 417: }
1.90 paf 418:
1.303 misha 419: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 420:
1.45 paf 421: // OK. write out the result
1.248 paf 422: output_result(body_file, header_only, as_attachment);
1.183 paf 423:
1.171 parser 424: } catch(const Exception& e) { // request handling problem
1.268 paf 425: try {
1.76 paf 426: // we're returning not result, but error explanation
1.269 paf 427:
428: Request::Exception_details details=get_details(e);
429: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 430:
431: // reset language to default
432: flang=fdefault_lang;
433:
434: // reset response
435: response.fields().clear();
436:
437: // this is what we'd return in $response:body
438: const String* body_string=0;
439:
440: // maybe we'd be lucky enough as to report an error
441: // in a gracefull way...
1.308 misha 442: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 443: if(Junction* junction=value->get_junction()) {
444: if(const Method *method=junction->method) {
1.287 misha 445: // preparing to pass parameters to
446: // @unhandled_exception[exception;stack]
447:
448: // $stack[^table::create{name file lineno colno}]
449: Table::columns_type stack_trace_columns(new ArrayString);
450: *stack_trace_columns+=new String("name");
451: *stack_trace_columns+=new String("file");
452: *stack_trace_columns+=new String("lineno");
453: *stack_trace_columns+=new String("colno");
454: Table& stack_trace=*new Table(stack_trace_columns);
455: if(!exception_trace.is_empty()/*signed!*/)
456: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
457: Trace trace=exception_trace.get(i);
458: Table::element_type row(new ArrayString);
459:
460: *row+=trace.name(); // name column
461: Operation::Origin origin=trace.origin();
462: if(origin.file_no) {
463: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
464: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
465: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
466: }
467: stack_trace+=row;
468: }
469:
1.323 moko 470: // future $response:body=
471: // execute ^unhandled_exception[exception;stack]
472: 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)
473:
474: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 475: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 476:
1.300 misha 477: frame.store_params(params, 2);
1.323 moko 478: execute_method(frame);
1.287 misha 479:
1.323 moko 480: body_string=&frame.result().as_string();
1.233 paf 481: }
1.30 paf 482: }
1.258 paf 483: }
484:
485: if(!body_string) { // couldn't report an error beautifully?
486: // doing that ugly
487:
488: // future $response:content-type
1.344 moko 489: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 490: // future $response:body
1.269 paf 491: body_string=new String(exception_cstr);
1.258 paf 492: }
1.41 paf 493:
1.258 paf 494: VString body_vstring(*body_string);
1.303 misha 495: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 496:
1.273 paf 497: // conditionally log it
498: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
499: if(!vhandled || !vhandled->as_bool()) {
500: SAPI::log(sapi_info, "%s", exception_cstr);
501: }
502:
1.258 paf 503: // ERROR. write it out
504: output_result(body_file, header_only, false);
1.287 misha 505:
1.273 paf 506: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 507: Request::Exception_details details=get_details(e);
508: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 509: // unconditionally log the beast
510: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 511:
512: throw Exception(0,
513: 0,
514: "in %s",
515: exception_cstr);
1.268 paf 516: }
1.1 paf 517: }
518: }
519:
1.266 paf 520: uint Request::register_file(String::Body file_spec) {
1.248 paf 521: file_list+=file_spec;
522: return file_list.count()-1;
523: }
524:
1.318 misha 525: void Request::use_file_directly(VStateless_class& aclass,
526: const String& file_spec,
527: bool fail_on_read_problem,
528: bool fail_on_file_absence) {
529:
1.73 paf 530: // cyclic dependence check
1.318 misha 531: if(used_files.get(file_spec))
1.248 paf 532: return;
1.318 misha 533: used_files.put(file_spec, true);
534:
535: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
536: if(!entry_exists(file_spec))
537: return;
538:
539: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
540: use_buf(aclass, source, 0, register_file(file_spec));
541: }
542:
543:
1.349 moko 544: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/) {
1.73 paf 545:
1.326 misha 546: if(file_name.is_empty())
547: throw Exception(PARSER_RUNTIME,
548: 0,
549: "usage failed - no filename was specified");
550:
1.318 misha 551: const String* filespec=0;
552:
553: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
554: filespec=&absolute(file_name);
555: else if(use_filespec){ // search in current dir first
1.331 misha 556: size_t last_slash_pos=use_filespec->strrpbrk("/");
557: if(last_slash_pos!=STRING_NOT_FOUND)
558: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 559: }
560:
561: if(!filespec){
562: // prevent multiple scan CLASS_PATH for searching one file
563: if(searched_along_class_path.get(file_name))
564: return;
565: searched_along_class_path.put(file_name, true);
1.308 misha 566: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 567: if(element->is_string()) {
1.318 misha 568: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 569: } else if(Table *table=element->get_table()) {
1.318 misha 570: for(size_t i=table->count(); i--; ) {
1.248 paf 571: const String& path=*(*table->get(i))[0];
1.318 misha 572: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 573: break; // found along class_path
574: }
575: } else
1.286 misha 576: throw Exception(PARSER_RUNTIME,
1.233 paf 577: 0,
578: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 579: if(!filespec)
1.286 misha 580: throw Exception(PARSER_RUNTIME,
1.233 paf 581: &file_name,
582: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 583: } else
1.286 misha 584: throw Exception(PARSER_RUNTIME,
1.153 parser 585: &file_name,
1.203 paf 586: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 587: }
1.230 paf 588:
1.318 misha 589: use_file_directly(aclass, *filespec);
1.16 paf 590: }
591:
1.349 moko 592: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
593: static String use("USE");
594: try {
595: use_file(aclass, file_name, use_filespec);
596: } catch (...) {
597: exception_trace.push(Trace(&use, origin));
598: rethrow;
599: }
600: }
1.208 paf 601:
1.358 ! moko 602: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
! 603: // temporary zero @conf to avoid it second execution
1.248 paf 604: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 ! moko 605: // temporary zero @auto to avoid it second execution
1.248 paf 606: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 607:
1.295 misha 608: // compile loaded classes
609: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 610:
1.248 paf 611: VString* vfilespec=
612: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 613:
614: for(size_t i=0; i<cclasses.count(); i++){
615: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 616:
617: // locate and execute possible @conf[] static
1.358 ! moko 618: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass, conf_method_name, vfilespec, false/*no string result needed*/);
1.295 misha 619: if(executed.method)
620: configure_admin(cclass/*, executed.method->name*/);
621:
622: // locate and execute possible @auto[] static
1.358 ! moko 623: execute_nonvirtual_method(cclass, auto_method_name, vfilespec, false/*no result needed*/);
1.336 moko 624:
625: cclass.enable_default_setter();
1.295 misha 626: }
1.19 paf 627: }
628:
1.248 paf 629: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 630: char *hpath=pa_strdup(apath);
1.248 paf 631: String& result=*new String;
632: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 633: result << hpath << "/";
1.248 paf 634: result << relative_name;
635: return result;
1.19 paf 636: }
637:
1.77 paf 638: const String& Request::absolute(const String& relative_name) {
1.217 paf 639: if(relative_name.first_char()=='/') {
1.341 moko 640: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 641: result << relative_name;
1.19 paf 642: return result;
643: } else
1.248 paf 644: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 645: #ifdef WIN32
646: || relative_name.pos(":")==1 // DRIVE:
647: || relative_name.starts_with("\\\\") // UNC1
648: || relative_name.starts_with("//") // UNC2
649: #endif
650: )
651: return relative_name;
652: else
1.248 paf 653: return relative(request_info.path_translated, relative_name);
1.1 paf 654: }
1.45 paf 655:
1.267 paf 656: #ifndef DOXYGEN
657: class Add_header_attribute_info
658: {
659: public:
660: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
661: Request& r;
662: bool add_last_modified;
663: };
664: #endif
1.344 moko 665: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
666: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 667: return;
1.290 misha 668:
1.345 moko 669: if(name==LAST_MODIFIED_NAME_UPPER)
670: info->add_last_modified=false;
671:
1.316 misha 672: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 673:
1.267 paf 674: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 675: aname,
1.316 misha 676: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 677: );
1.267 paf 678: }
679:
680: static void output_sole_piece(Request& r,
681: bool header_only,
682: VFile& body_file,
683: Value* body_file_content_type) {
684: // transcode text body when "text/*" or simple result
685: String::C output(body_file.value_ptr(), body_file.value_size());
686: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
687: output=Charset::transcode(output,
688: r.charsets.source(),
689: r.charsets.client());
690:
1.311 misha 691: // prepare header: Content-Length
692: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 693:
694: // send header
695: SAPI::send_header(r.sapi_info);
696:
697: // send body
698: if(!header_only)
699: SAPI::send_body(r.sapi_info, output.str, output.length);
700: }
701:
702: #ifndef DOXYGEN
703: struct Range
704: {
705: size_t start;
706: size_t end;
707: };
708: #endif
1.313 misha 709: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 710: const char *p = s->cstr();
711: if(s->starts_with("bytes="))
712: p += 6;
713: Range r;
714: while(*p){
715: r.start = (size_t)-1;
716: r.end = (size_t)-1;
717: if(*p >= '0' && *p <= '9'){
718: r.start = atol(p);
719: while(*p>='0' && *p<='9') ++p;
720: }
721: if(*p++ != '-') break;
722: if(*p >= '0' && *p <= '9'){
723: r.end = atol(p);
724: while(*p>='0' && *p<='9') ++p;
725: }
726: if(*p == ',') ++p;
727: ar += r;
728: }
1.101 paf 729: }
1.267 paf 730:
731: static void output_pieces(Request& r,
732: bool header_only,
733: const String& filename,
734: size_t content_length,
735: Value& date,
736: bool add_last_modified)
737: {
1.315 misha 738: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 739:
1.267 paf 740: const size_t BUFSIZE = 10*0x400;
741: char buf[BUFSIZE];
1.339 moko 742: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 743: size_t offset=0;
744: size_t part_length=content_length;
745: if(range){
746: Array<Range> ar;
747: parse_range(new String(range), ar);
748: size_t count = ar.count();
749: if(count == 1){
750: Range &rg = ar.get_ref(0);
751: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 752: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 753: return;
754: }
755: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
756: rg.start = content_length - rg.end;
757: rg.end = content_length;
758: offset += rg.start;
759: part_length = rg.end-rg.start;
760: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
761: rg.end = content_length-1;
762: offset += rg.start;
763: part_length -= rg.start;
764: }
765: if(part_length == 0){
1.311 misha 766: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 767: return;
768: }
1.311 misha 769: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 770: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 771: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 772: }else if(count != 0){
1.311 misha 773: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 774: return;
775: }
776: }
777:
778:
1.311 misha 779: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 780:
1.314 misha 781: if(add_last_modified)
1.315 misha 782: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 783:
1.267 paf 784: SAPI::send_header(r.sapi_info);
785:
786: const String& filespec=r.absolute(filename);
787:
788: size_t sent = 0;
789: if(!header_only){
790: size_t to_read = 0;
791: size_t size = 0;
792: do{
793: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
794: File_read_result read_result=file_read(r.charsets, filespec,
795: false /*as text*/, 0/*params*/, true/*fail on problem*/,
796: buf, offset, to_read);
797: to_read=read_result.length;
798: if(to_read == 0)
799: break;
800: offset += to_read;
801:
802: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
803: sent += size;
804: if(size != to_read)
805: break;
806: part_length -= to_read;
807: }while(part_length);
808: }
809: }
810:
1.248 paf 811: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 812: // header: cookies
1.248 paf 813: cookie.output_result(sapi_info);
1.51 paf 814:
1.314 misha 815: // _file_ content-type might be specified
1.267 paf 816: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 817:
1.314 misha 818: // Content-Disposition
1.267 paf 819: Value* vfile_name=body_file->fields().get(name_name);
820: if(!vfile_name) {
821: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 822: if(vfile_name) {
823: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 824: if(char *after_slash=rsplit(name_cstr, '\\'))
825: name_cstr=after_slash;
826: if(char *after_slash=rsplit(name_cstr, '/'))
827: name_cstr=after_slash;
1.327 misha 828: vfile_name=new VString(*new String(name_cstr));
1.274 paf 829: }
1.267 paf 830: }
831: if(vfile_name) {
832: const String& sfile_name=vfile_name->as_string();
833: if(sfile_name!=NONAME_DAT) {
1.283 misha 834: VHash& hash=*new VHash();
835: HashStringValue &h=hash.hash();
1.288 misha 836: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 837: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 838:
1.344 moko 839: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 840:
841: if(!body_file_content_type)
842: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 843: }
1.267 paf 844: }
845:
1.312 misha 846: // set Content-Type
1.314 misha 847: if(body_file_content_type) {
848: // body file content type
1.344 moko 849: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 850: } else {
851: // default content type
1.344 moko 852: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 853: }
1.312 misha 854:
1.314 misha 855: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 856: Add_header_attribute_info info(*this);
1.281 paf 857: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 858:
1.267 paf 859: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 860: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 861: const String& sresponse_body_file=vresponse_body_file->as_string();
862: size_t content_length=0;
863: time_t atime=0, mtime=0, ctime=0;
864: file_stat(absolute(sresponse_body_file),
865: content_length,
866: atime, mtime, ctime);
867:
868: VDate* vdate=0;
869: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 870: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 871: vdate=static_cast<VDate*>(vdatep);
872: else
1.286 misha 873: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 874: }
875: if(!vdate)
1.346 moko 876: vdate=new VDate((pa_time_t)mtime);
1.62 paf 877:
1.267 paf 878: output_pieces(*this, header_only,
879: sresponse_body_file,
880: content_length,
881: *vdate,
882: info.add_last_modified);
883: } else {
1.314 misha 884: if(body_file_content_type)
885: if(HashStringValue *hash=body_file_content_type->get_hash())
886: body_file_content_type=hash->get(value_name);
887:
1.267 paf 888: output_sole_piece(*this, header_only,
889: *body_file, body_file_content_type);
890: }
1.50 paf 891: }
1.104 paf 892:
1.328 misha 893: const String& Request::mime_type_of(const String* file_name) {
894: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
895: }
896:
1.248 paf 897: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 898: if(mime_types)
1.248 paf 899: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
900: String sext(++cext);
1.246 paf 901: Table::Action_options options;
1.342 moko 902: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 903: if(const String* result=mime_types->item(1))
904: return *result;
1.104 paf 905: else
1.286 misha 906: throw Exception(PARSER_RUNTIME,
1.248 paf 907: 0,
1.212 paf 908: MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 909: }
1.104 paf 910: }
1.248 paf 911:
912: return *new String("application/octet-stream");
913: }
914:
1.318 misha 915: const String* Request::get_used_filename(uint file_no){
916: if(file_no < file_list.count())
917: return new String(file_list[file_no], String::L_TAINTED);
918: return 0;
919: }
920:
1.248 paf 921: #ifdef XML
1.280 paf 922: xmlChar* Request::transcode(const String& s) {
1.248 paf 923: return charsets.source().transcode(s);
924: }
925:
1.280 paf 926: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 927: return charsets.source().transcode(s);
928: }
929:
1.280 paf 930: const String& Request::transcode(const xmlChar* s) {
1.248 paf 931: return charsets.source().transcode(s);
1.233 paf 932: }
1.248 paf 933: #endif
934:
1.349 moko 935: Request::Exception_details Request::get_details(const Exception& e) {
936: const String* problem_source=e.problem_source();
937: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
938: Operation::Origin origin={0, 0, 0};
1.248 paf 939:
1.349 moko 940: if(!exception_trace.is_empty()) {
941: Trace bottom=exception_trace.bottom_value();
1.350 moko 942: origin=bottom.origin();
943: if(!problem_source) { // we don't know who trigged the bug
944: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
945: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
946: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 947: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
948: } else {
949: // stack top contains not us, leaving intact to help ^throw
1.279 paf 950: }
1.248 paf 951: }
952:
953: // $.type
954: if(const char* type=e.type(true))
955: hash.put(exception_type_part_name, new VString(*new String(type)));
956:
957: // $.source
1.349 moko 958: if(problem_source)
959: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 960:
1.349 moko 961: // $.file $.lineno $.colno
962: if(origin.file_no){
1.347 moko 963: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
964: hash.put("lineno", new VInt(1+origin.line));
965: hash.put("colno", new VInt(1+origin.col));
1.248 paf 966: }
967:
968: // $.comment
969: if(const char* comment=e.comment(true))
1.349 moko 970: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 971:
972: // $.handled(0)
1.299 misha 973: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 974:
1.349 moko 975: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 976: }
1.337 moko 977:
978: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
979: frequest(arequest),
980: fwhere(awhere),
981: fname(aname),
982: saved(awhere.get_element(aname))
983: {
984: Junction* junction;
985: if(saved && (junction=saved->get_junction()) && junction->is_getter)
986: saved=0;
987: frequest.put_element(fwhere, aname, awhat);
988: }
989:
990: Temp_value_element::~Temp_value_element() {
991: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
992: }
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