Annotation of parser3/src/main/pa_request.C, revision 1.363
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:
1.363 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.362 2016/10/09 21:32:19 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:
1.361 moko 47: const uint EXECUTE_RECOURSION_LIMIT=1000;
48: const uint LOOP_LIMIT=20000;
49:
1.248 paf 50: // defines for globals
51:
52: #define MAIN_METHOD_NAME "main"
53: #define AUTO_METHOD_NAME "auto"
1.309 misha 54: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 55: #define EXCEPTION_TYPE_PART_NAME "type"
56: #define EXCEPTION_SOURCE_PART_NAME "source"
57: #define EXCEPTION_COMMENT_PART_NAME "comment"
58:
59: // globals
60:
61: const String main_method_name(MAIN_METHOD_NAME);
62: const String auto_method_name(AUTO_METHOD_NAME);
1.309 misha 63: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 64:
1.248 paf 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:
1.361 moko 70: int pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
71: int pa_loop_limit=LOOP_LIMIT;
72:
1.248 paf 73: // defines for statics
74:
75: #define CHARSETS_NAME "CHARSETS"
76: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 77: #define STRICT_VARS_NAME "STRICT-VARS"
1.357 moko 78: #define PROTOTYPE_NAME "OBJECT-PROTOTYPE"
1.362 moko 79: #define LIMITS_NAME "LIMITS"
80: #define RECOURSION_LIMIT_NAME "max_recoursion"
81: #define LOOP_LIMIT_NAME "max_loop"
1.248 paf 82: #define CONF_METHOD_NAME "conf"
83: #define POST_PROCESS_METHOD_NAME "postprocess"
84: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 85: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 86:
1.344 moko 87: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
88: #define BODY_NAME_UPPER "BODY"
89:
1.248 paf 90: // statics
91:
92: static const String charsets_name(CHARSETS_NAME);
93: static const String main_class_name(MAIN_CLASS_NAME);
94: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 95: static const String strict_vars_name(STRICT_VARS_NAME);
1.357 moko 96: static const String prototype_name(PROTOTYPE_NAME);
1.362 moko 97: static const String limits_name(LIMITS_NAME);
1.361 moko 98: static const String recoursion_limit_name(RECOURSION_LIMIT_NAME);
99: static const String loop_limit_name(LOOP_LIMIT_NAME);
100:
1.248 paf 101: static const String conf_method_name(CONF_METHOD_NAME);
102: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
103: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 104: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 105:
1.344 moko 106: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
107: static const String body_name_upper(BODY_NAME_UPPER);
108:
109: // more static
110:
111: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
112: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
113: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
114: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
115:
1.248 paf 116: // defines
1.82 paf 117:
1.344 moko 118: #define CHARSET_NAME_UPPER "CHARSET"
119: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
120:
1.233 paf 121: // op.C
1.248 paf 122: VStateless_class& VClassMAIN_create();
1.123 paf 123:
1.157 parser 124: //
1.248 paf 125: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 126: String::Language adefault_lang):
1.248 paf 127: // private
128: anti_endless_execute_recoursion(0),
129:
130: // public
1.335 moko 131: allow_class_replace(false),
1.248 paf 132: method_frame(0),
133: rcontext(0),
134: wcontext(0),
135: flang(adefault_lang),
1.191 paf 136: fconnection(0),
1.307 misha 137: finterrupted(false),
138: fskip(SKIP_NOTHING),
139: fin_cycle(0),
1.248 paf 140:
141: // public
1.257 paf 142: request_info(arequest_info),
1.248 paf 143: sapi_info(asapi_info),
1.359 moko 144: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 145:
146: main_class(VClassMAIN_create()),
1.260 paf 147: form(*new VForm(charsets, arequest_info)),
1.248 paf 148: mail(*new VMail),
149: response(*new VResponse(arequest_info, charsets)),
1.298 misha 150: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 151: console(*new VConsole),
1.248 paf 152:
153: // private
154: configure_admin_done(false),
155:
156: // private defaults
157: fdefault_lang(adefault_lang),
158: // private mime types
159: mime_types(0)
1.157 parser 160: {
1.261 paf 161: pa_register_thread_request(*this);
162:
1.248 paf 163: // file_no=0 => unknown
1.347 moko 164: file_list+="UNKNOWN";
165: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 166:
1.178 paf 167: // maybe expire old caches
1.264 paf 168: cache_managers->maybe_expire();
1.178 paf 169:
1.157 parser 170: /// directly used
1.233 paf 171: // MAIN class, operators
1.353 moko 172: put_class(&main_class);
1.157 parser 173: // classes:
174: // table, file, random, mail, image, ...
1.248 paf 175: methoded_array().register_directly_used(*this);
1.157 parser 176:
177: /// methodless
1.354 moko 178:
1.157 parser 179: // env class
1.353 moko 180: put_class(new VEnv(asapi_info));
1.175 paf 181: // status class
1.353 moko 182: put_class(new VStatus());
1.157 parser 183: // request class
1.353 moko 184: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 185: // cookie class
1.353 moko 186: put_class(&cookie);
1.253 paf 187: // console class
1.353 moko 188: put_class(&console);
1.354 moko 189:
1.157 parser 190: /// methoded
1.354 moko 191:
1.157 parser 192: // response class
1.353 moko 193: put_class(&response);
1.157 parser 194: // form class
1.353 moko 195: put_class(&form);
1.213 paf 196: // mail class
1.353 moko 197: put_class(&mail);
1.157 parser 198: // math class
1.353 moko 199: put_class(new VMath);
1.248 paf 200: // memory class
1.353 moko 201: put_class(new VMemory);
1.117 paf 202: }
1.192 paf 203:
204: Request::~Request() {
205: #ifdef XML
206: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 207: if(const char* xml_generic_errors=xmlGenericErrors()) {
208: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 209: pa_free((void *)xml_generic_errors);
1.192 paf 210: }
211: #endif
212: }
1.236 paf 213:
1.248 paf 214: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 215:
1.355 moko 216: VStateless_class* Request::get_class(const String& name){
217: VStateless_class* result=classes().get(name);
1.313 misha 218: if(!result)
1.309 misha 219: if(Value* value=main_class.get_element(autouse_method_name))
220: if(Junction* junction=value->get_junction())
221: if(const Method *method=junction->method) {
222: Value *vname=new VString(name);
1.363 ! moko 223: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
! 224: frame.store_params(&vname, 1);
! 225: // we don't need the result
! 226: call(frame);
! 227: });
1.309 misha 228: result=classes().get(name);
229: }
230: return result;
231: }
232:
1.356 moko 233: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 234: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 235: }
1.356 moko 236:
1.248 paf 237: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 238: if(configure_admin_done)
1.356 moko 239: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 240: configure_admin_done=true;
241:
1.227 paf 242: // charsets must only be specified in method_frame config
1.208 paf 243: // so that users would not interfere
244:
245: /* $MAIN:CHARSETS[
246: $.charsetname1[/full/path/to/charset/file.cfg]
247: ...
248: ]
249: */
1.308 misha 250: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 251: if(!vcharsets->is_string()) {
1.248 paf 252: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 253: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 254: else
1.356 moko 255: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 256: }
1.208 paf 257: }
258:
1.330 moko 259: #ifdef STRICT_VARS
1.332 moko 260: VVoid::strict_vars=false;
1.330 moko 261: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
262: if(strict_vars->is_bool())
263: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 264: else
265: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
266: }
267: #endif
268:
269: #ifdef OBJECT_PROTOTYPE
270: VClass::prototype=true;
271: if(Value* prototype=conf_class.get_element(prototype_name)) {
272: if(prototype->is_bool())
273: VClass::prototype=prototype->as_bool();
274: else
275: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" PROTOTYPE_NAME " must be bool");
1.330 moko 276: }
277: #endif
278:
1.362 moko 279: Value* limits=conf_class.get_element(limits_name);
280:
1.361 moko 281: pa_loop_limit=LOOP_LIMIT;
1.362 moko 282: if(limits)
283: if(Value* loop_limit=limits->get_element(loop_limit_name)) {
284: if(loop_limit->is_evaluated_expr()) {
285: pa_loop_limit=loop_limit->as_int();
286: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
287: } else
288: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" LOOP_LIMIT_NAME " must be int");
289: }
1.361 moko 290:
291: pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.362 moko 292: if(limits)
293: if(Value* recoursion_limit=limits->get_element(recoursion_limit_name)) {
294: if(recoursion_limit->is_evaluated_expr()) {
295: pa_execute_recoursion_limit=recoursion_limit->as_int();
296: if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
297: } else
298: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" RECOURSION_LIMIT_NAME " must be int");
299: }
1.361 moko 300:
1.227 paf 301: // configure method_frame options
1.208 paf 302: // until someone with less privileges have overriden them
1.248 paf 303: methoded_array().configure_admin(*this);
1.208 paf 304: }
1.150 parser 305:
1.349 moko 306: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
307:
1.269 paf 308: #define PA_URI_FORMAT "%s: "
1.349 moko 309: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
310:
1.269 paf 311: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
312: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 313:
314: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
315: #define PA_SOURCE_VALUE details.problem_source->cstr(),
316:
317: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
318: snprintf(result, MAX_STRING, \
319: PA_URI_FORMAT \
320: f1 f2 \
321: PA_COMMENT_TYPE_FORMAT, \
322: request_info.uri, \
323: v1 v2 \
324: e.comment(), e.type() \
325: );
326:
1.269 paf 327: char* result=new(PointerFreeGC) char[MAX_STRING];
328:
329: if(details.problem_source) { // do we know the guy?
1.349 moko 330: if(details.origin.file_no) // do whe know where he came from?
331: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
332: else
333: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
334: } else {
335: if(details.origin.file_no) // do whe know where he came from?
336: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
337: else
338: EXCEPTION_CSTR(,,,)
339: }
1.269 paf 340:
341: return result;
342: }
1.272 paf 343:
344: void Request::configure() {
345: // configure admin options if not configured yet
346: if(!configure_admin_done)
347: configure_admin(main_class);
348:
349: // configure not-admin=user options
350: methoded_array().configure_user(*this);
351:
352: // $MAIN:MIME-TYPES
1.308 misha 353: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 354: if(Table *table=element->get_table())
355: mime_types=table;
356: }
1.64 paf 357: /**
358: load MAIN class, execute @main.
359: MAIN class consists of all the auto.p files we'd manage to find
360: plus
361: the file user requested us to process
362: all located classes become children of one another,
363: composing class we name 'MAIN'
1.180 paf 364:
365: @test log stack trace
366:
1.64 paf 367: */
1.248 paf 368: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 369: try {
1.211 paf 370: // loading config
371: if(config_filespec) {
1.248 paf 372: const String& filespec=*new String(config_filespec);
1.318 misha 373: use_file_directly(main_class,
374: filespec,
1.248 paf 375: config_fail_on_read_problem,
376: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 377: }
1.8 paf 378:
1.338 moko 379: // filling mail received
380: mail.fill_received(*this);
381:
1.72 paf 382: // loading auto.p files from document_root/..
383: // to the one beside requested file.
384: // all assigned bases from upper dir
385: {
1.248 paf 386: const char* after=request_info.path_translated;
387: size_t drlen=strlen(request_info.document_root);
388: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 389: after+=drlen;
390: if(after[-1]=='/')
391: --after;
392: }
393:
1.248 paf 394: while(const char* before=strchr(after, '/')) {
395: String& sfile_spec=*new String;
396: if(after!=request_info.path_translated) {
397: sfile_spec.append_strdup(
398: request_info.path_translated, before-request_info.path_translated,
399: String::L_CLEAN);
1.152 parser 400: sfile_spec << "/" AUTO_FILE_NAME;
401:
1.318 misha 402: use_file_directly(main_class,
1.248 paf 403: sfile_spec,
404: true /*fail on read problem*/,
405: false /*but ignore absence, sole user*/);
1.115 paf 406: }
1.317 misha 407: for(after=before+1;*after=='/';after++);
1.72 paf 408: }
409: }
1.34 paf 410:
1.272 paf 411: try {
412: // compile requested file
413: String& spath_translated=*new String;
414: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 415: use_file_directly(main_class, spath_translated);
1.272 paf 416:
417: configure();
418: } catch(...) {
419: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
420: rethrow;
421: }
1.25 paf 422:
423: // execute @main[]
1.248 paf 424: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 425: if(!body_string)
1.286 misha 426: throw Exception(PARSER_RUNTIME,
1.248 paf 427: 0,
1.340 moko 428: "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 429:
1.250 paf 430: // extract response body
1.344 moko 431: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 432: bool as_attachment=body_value!=0;
433: if(!body_value)
1.344 moko 434: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 435: if(!body_value)
436: body_value=new VString(*body_string); // just result of ^main[]
437:
1.119 paf 438: // @postprocess
1.308 misha 439: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 440: if(Junction* junction=value->get_junction())
1.91 paf 441: if(const Method *method=junction->method) {
442: // preparing to pass parameters to
1.119 paf 443: // @postprocess[data]
1.363 ! moko 444: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
! 445: frame.store_params(&body_value, 1);
! 446: call(frame);
! 447: body_value=&frame.result();
! 448: });
1.91 paf 449: }
1.90 paf 450:
1.303 misha 451: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 452:
1.45 paf 453: // OK. write out the result
1.248 paf 454: output_result(body_file, header_only, as_attachment);
1.183 paf 455:
1.171 parser 456: } catch(const Exception& e) { // request handling problem
1.268 paf 457: try {
1.76 paf 458: // we're returning not result, but error explanation
1.269 paf 459:
460: Request::Exception_details details=get_details(e);
461: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 462:
463: // reset language to default
464: flang=fdefault_lang;
465:
466: // reset response
467: response.fields().clear();
468:
469: // this is what we'd return in $response:body
470: const String* body_string=0;
471:
472: // maybe we'd be lucky enough as to report an error
473: // in a gracefull way...
1.308 misha 474: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 475: if(Junction* junction=value->get_junction()) {
476: if(const Method *method=junction->method) {
1.287 misha 477: // preparing to pass parameters to
478: // @unhandled_exception[exception;stack]
479:
480: // $stack[^table::create{name file lineno colno}]
481: Table::columns_type stack_trace_columns(new ArrayString);
482: *stack_trace_columns+=new String("name");
483: *stack_trace_columns+=new String("file");
484: *stack_trace_columns+=new String("lineno");
485: *stack_trace_columns+=new String("colno");
486: Table& stack_trace=*new Table(stack_trace_columns);
487: if(!exception_trace.is_empty()/*signed!*/)
488: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
489: Trace trace=exception_trace.get(i);
490: Table::element_type row(new ArrayString);
491:
492: *row+=trace.name(); // name column
493: Operation::Origin origin=trace.origin();
494: if(origin.file_no) {
495: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
496: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
497: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
498: }
499: stack_trace+=row;
500: }
501:
1.323 moko 502: // future $response:body=
503: // execute ^unhandled_exception[exception;stack]
504: 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)
505:
1.300 misha 506: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.363 ! moko 507: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
! 508: frame.store_params(params, 2);
! 509: call(frame);
! 510: body_string=&frame.result().as_string();
! 511: });
1.233 paf 512: }
1.30 paf 513: }
1.258 paf 514: }
515:
516: if(!body_string) { // couldn't report an error beautifully?
517: // doing that ugly
518:
519: // future $response:content-type
1.344 moko 520: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 521: // future $response:body
1.269 paf 522: body_string=new String(exception_cstr);
1.258 paf 523: }
1.41 paf 524:
1.258 paf 525: VString body_vstring(*body_string);
1.303 misha 526: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 527:
1.273 paf 528: // conditionally log it
529: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
530: if(!vhandled || !vhandled->as_bool()) {
531: SAPI::log(sapi_info, "%s", exception_cstr);
532: }
533:
1.258 paf 534: // ERROR. write it out
535: output_result(body_file, header_only, false);
1.287 misha 536:
1.273 paf 537: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 538: Request::Exception_details details=get_details(e);
539: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 540: // unconditionally log the beast
541: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 542:
543: throw Exception(0,
544: 0,
545: "in %s",
546: exception_cstr);
1.268 paf 547: }
1.1 paf 548: }
549: }
550:
1.266 paf 551: uint Request::register_file(String::Body file_spec) {
1.248 paf 552: file_list+=file_spec;
553: return file_list.count()-1;
554: }
555:
1.318 misha 556: void Request::use_file_directly(VStateless_class& aclass,
557: const String& file_spec,
558: bool fail_on_read_problem,
559: bool fail_on_file_absence) {
560:
1.73 paf 561: // cyclic dependence check
1.318 misha 562: if(used_files.get(file_spec))
1.248 paf 563: return;
1.318 misha 564: used_files.put(file_spec, true);
565:
566: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
567: if(!entry_exists(file_spec))
568: return;
569:
570: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
571: use_buf(aclass, source, 0, register_file(file_spec));
572: }
573:
574:
1.349 moko 575: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/) {
1.73 paf 576:
1.326 misha 577: if(file_name.is_empty())
578: throw Exception(PARSER_RUNTIME,
579: 0,
580: "usage failed - no filename was specified");
581:
1.318 misha 582: const String* filespec=0;
583:
584: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
585: filespec=&absolute(file_name);
586: else if(use_filespec){ // search in current dir first
1.331 misha 587: size_t last_slash_pos=use_filespec->strrpbrk("/");
588: if(last_slash_pos!=STRING_NOT_FOUND)
589: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 590: }
591:
592: if(!filespec){
593: // prevent multiple scan CLASS_PATH for searching one file
594: if(searched_along_class_path.get(file_name))
595: return;
596: searched_along_class_path.put(file_name, true);
1.308 misha 597: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 598: if(element->is_string()) {
1.318 misha 599: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 600: } else if(Table *table=element->get_table()) {
1.318 misha 601: for(size_t i=table->count(); i--; ) {
1.248 paf 602: const String& path=*(*table->get(i))[0];
1.318 misha 603: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 604: break; // found along class_path
605: }
606: } else
1.286 misha 607: throw Exception(PARSER_RUNTIME,
1.233 paf 608: 0,
609: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 610: if(!filespec)
1.286 misha 611: throw Exception(PARSER_RUNTIME,
1.233 paf 612: &file_name,
613: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 614: } else
1.286 misha 615: throw Exception(PARSER_RUNTIME,
1.153 parser 616: &file_name,
1.203 paf 617: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 618: }
1.230 paf 619:
1.318 misha 620: use_file_directly(aclass, *filespec);
1.16 paf 621: }
622:
1.349 moko 623: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
624: static String use("USE");
625: try {
626: use_file(aclass, file_name, use_filespec);
627: } catch (...) {
628: exception_trace.push(Trace(&use, origin));
629: rethrow;
630: }
631: }
1.208 paf 632:
1.358 moko 633: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
634: // temporary zero @conf to avoid it second execution
1.248 paf 635: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 636: // temporary zero @auto to avoid it second execution
1.248 paf 637: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 638:
1.295 misha 639: // compile loaded classes
640: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 641:
1.248 paf 642: VString* vfilespec=
643: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 644:
645: for(size_t i=0; i<cclasses.count(); i++){
646: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 647:
648: // locate and execute possible @conf[] static
1.358 moko 649: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass, conf_method_name, vfilespec, false/*no string result needed*/);
1.295 misha 650: if(executed.method)
651: configure_admin(cclass/*, executed.method->name*/);
652:
653: // locate and execute possible @auto[] static
1.358 moko 654: execute_nonvirtual_method(cclass, auto_method_name, vfilespec, false/*no result needed*/);
1.336 moko 655:
656: cclass.enable_default_setter();
1.295 misha 657: }
1.19 paf 658: }
659:
1.248 paf 660: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 661: char *hpath=pa_strdup(apath);
1.248 paf 662: String& result=*new String;
663: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 664: result << hpath << "/";
1.248 paf 665: result << relative_name;
666: return result;
1.19 paf 667: }
668:
1.77 paf 669: const String& Request::absolute(const String& relative_name) {
1.217 paf 670: if(relative_name.first_char()=='/') {
1.341 moko 671: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 672: result << relative_name;
1.19 paf 673: return result;
674: } else
1.248 paf 675: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 676: #ifdef WIN32
677: || relative_name.pos(":")==1 // DRIVE:
678: || relative_name.starts_with("\\\\") // UNC1
679: || relative_name.starts_with("//") // UNC2
680: #endif
681: )
682: return relative_name;
683: else
1.248 paf 684: return relative(request_info.path_translated, relative_name);
1.1 paf 685: }
1.45 paf 686:
1.267 paf 687: #ifndef DOXYGEN
688: class Add_header_attribute_info
689: {
690: public:
691: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
692: Request& r;
693: bool add_last_modified;
694: };
695: #endif
1.344 moko 696: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
697: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 698: return;
1.290 misha 699:
1.345 moko 700: if(name==LAST_MODIFIED_NAME_UPPER)
701: info->add_last_modified=false;
702:
1.316 misha 703: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 704:
1.267 paf 705: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 706: aname,
1.316 misha 707: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 708: );
1.267 paf 709: }
710:
711: static void output_sole_piece(Request& r,
712: bool header_only,
713: VFile& body_file,
714: Value* body_file_content_type) {
715: // transcode text body when "text/*" or simple result
716: String::C output(body_file.value_ptr(), body_file.value_size());
717: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
718: output=Charset::transcode(output,
719: r.charsets.source(),
720: r.charsets.client());
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:
762: static void output_pieces(Request& r,
763: bool header_only,
764: const String& filename,
765: size_t content_length,
766: Value& date,
767: bool add_last_modified)
768: {
1.315 misha 769: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 770:
1.267 paf 771: const size_t BUFSIZE = 10*0x400;
772: char buf[BUFSIZE];
1.339 moko 773: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 774: size_t offset=0;
775: size_t part_length=content_length;
776: if(range){
777: Array<Range> ar;
778: parse_range(new String(range), ar);
779: size_t count = ar.count();
780: if(count == 1){
781: Range &rg = ar.get_ref(0);
782: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 783: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 784: return;
785: }
786: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
787: rg.start = content_length - rg.end;
788: rg.end = content_length;
789: offset += rg.start;
790: part_length = rg.end-rg.start;
791: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
792: rg.end = content_length-1;
793: offset += rg.start;
794: part_length -= rg.start;
795: }
796: if(part_length == 0){
1.311 misha 797: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 798: return;
799: }
1.311 misha 800: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 801: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 802: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 803: }else if(count != 0){
1.311 misha 804: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 805: return;
806: }
807: }
808:
809:
1.311 misha 810: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 811:
1.314 misha 812: if(add_last_modified)
1.315 misha 813: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 814:
1.267 paf 815: SAPI::send_header(r.sapi_info);
816:
817: const String& filespec=r.absolute(filename);
818:
819: size_t sent = 0;
820: if(!header_only){
821: size_t to_read = 0;
822: size_t size = 0;
823: do{
824: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
825: File_read_result read_result=file_read(r.charsets, filespec,
826: false /*as text*/, 0/*params*/, true/*fail on problem*/,
827: buf, offset, to_read);
828: to_read=read_result.length;
829: if(to_read == 0)
830: break;
831: offset += to_read;
832:
833: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
834: sent += size;
835: if(size != to_read)
836: break;
837: part_length -= to_read;
838: }while(part_length);
839: }
840: }
841:
1.248 paf 842: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 843: // header: cookies
1.248 paf 844: cookie.output_result(sapi_info);
1.51 paf 845:
1.314 misha 846: // _file_ content-type might be specified
1.267 paf 847: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 848:
1.314 misha 849: // Content-Disposition
1.267 paf 850: Value* vfile_name=body_file->fields().get(name_name);
851: if(!vfile_name) {
852: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 853: if(vfile_name) {
854: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 855: if(char *after_slash=rsplit(name_cstr, '\\'))
856: name_cstr=after_slash;
857: if(char *after_slash=rsplit(name_cstr, '/'))
858: name_cstr=after_slash;
1.327 misha 859: vfile_name=new VString(*new String(name_cstr));
1.274 paf 860: }
1.267 paf 861: }
862: if(vfile_name) {
863: const String& sfile_name=vfile_name->as_string();
864: if(sfile_name!=NONAME_DAT) {
1.283 misha 865: VHash& hash=*new VHash();
866: HashStringValue &h=hash.hash();
1.288 misha 867: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 868: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 869:
1.344 moko 870: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 871:
872: if(!body_file_content_type)
873: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 874: }
1.267 paf 875: }
876:
1.312 misha 877: // set Content-Type
1.314 misha 878: if(body_file_content_type) {
879: // body file content type
1.344 moko 880: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 881: } else {
882: // default content type
1.344 moko 883: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 884: }
1.312 misha 885:
1.314 misha 886: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 887: Add_header_attribute_info info(*this);
1.281 paf 888: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 889:
1.267 paf 890: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 891: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 892: const String& sresponse_body_file=vresponse_body_file->as_string();
893: size_t content_length=0;
894: time_t atime=0, mtime=0, ctime=0;
895: file_stat(absolute(sresponse_body_file),
896: content_length,
897: atime, mtime, ctime);
898:
899: VDate* vdate=0;
900: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 901: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 902: vdate=static_cast<VDate*>(vdatep);
903: else
1.286 misha 904: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 905: }
906: if(!vdate)
1.346 moko 907: vdate=new VDate((pa_time_t)mtime);
1.62 paf 908:
1.267 paf 909: output_pieces(*this, header_only,
910: sresponse_body_file,
911: content_length,
912: *vdate,
913: info.add_last_modified);
914: } else {
1.314 misha 915: if(body_file_content_type)
916: if(HashStringValue *hash=body_file_content_type->get_hash())
917: body_file_content_type=hash->get(value_name);
918:
1.267 paf 919: output_sole_piece(*this, header_only,
920: *body_file, body_file_content_type);
921: }
1.50 paf 922: }
1.104 paf 923:
1.328 misha 924: const String& Request::mime_type_of(const String* file_name) {
925: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
926: }
927:
1.248 paf 928: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 929: if(mime_types)
1.248 paf 930: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
931: String sext(++cext);
1.246 paf 932: Table::Action_options options;
1.342 moko 933: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 934: if(const String* result=mime_types->item(1))
935: return *result;
1.104 paf 936: else
1.286 misha 937: throw Exception(PARSER_RUNTIME,
1.248 paf 938: 0,
1.212 paf 939: MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 940: }
1.104 paf 941: }
1.248 paf 942:
943: return *new String("application/octet-stream");
944: }
945:
1.318 misha 946: const String* Request::get_used_filename(uint file_no){
947: if(file_no < file_list.count())
948: return new String(file_list[file_no], String::L_TAINTED);
949: return 0;
950: }
951:
1.248 paf 952: #ifdef XML
1.280 paf 953: xmlChar* Request::transcode(const String& s) {
1.248 paf 954: return charsets.source().transcode(s);
955: }
956:
1.280 paf 957: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 958: return charsets.source().transcode(s);
959: }
960:
1.280 paf 961: const String& Request::transcode(const xmlChar* s) {
1.248 paf 962: return charsets.source().transcode(s);
1.233 paf 963: }
1.248 paf 964: #endif
965:
1.349 moko 966: Request::Exception_details Request::get_details(const Exception& e) {
967: const String* problem_source=e.problem_source();
968: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
969: Operation::Origin origin={0, 0, 0};
1.248 paf 970:
1.349 moko 971: if(!exception_trace.is_empty()) {
972: Trace bottom=exception_trace.bottom_value();
1.350 moko 973: origin=bottom.origin();
974: if(!problem_source) { // we don't know who trigged the bug
975: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
976: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
977: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 978: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
979: } else {
980: // stack top contains not us, leaving intact to help ^throw
1.279 paf 981: }
1.248 paf 982: }
983:
984: // $.type
985: if(const char* type=e.type(true))
986: hash.put(exception_type_part_name, new VString(*new String(type)));
987:
988: // $.source
1.349 moko 989: if(problem_source)
990: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 991:
1.349 moko 992: // $.file $.lineno $.colno
993: if(origin.file_no){
1.347 moko 994: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
995: hash.put("lineno", new VInt(1+origin.line));
996: hash.put("colno", new VInt(1+origin.col));
1.248 paf 997: }
998:
999: // $.comment
1000: if(const char* comment=e.comment(true))
1.349 moko 1001: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 1002:
1003: // $.handled(0)
1.299 misha 1004: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 1005:
1.349 moko 1006: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 1007: }
1.337 moko 1008:
1009: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
1010: frequest(arequest),
1011: fwhere(awhere),
1012: fname(aname),
1013: saved(awhere.get_element(aname))
1014: {
1015: Junction* junction;
1016: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1017: saved=0;
1018: frequest.put_element(fwhere, aname, awhat);
1019: }
1020:
1021: Temp_value_element::~Temp_value_element() {
1022: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1023: }
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