Annotation of parser3/src/main/pa_request.C, revision 1.400
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.374 moko 4: Copyright (c) 2001-2017 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"
1.372 moko 10: #include "pa_os.h"
1.1 paf 11: #include "pa_request.h"
1.3 paf 12: #include "pa_wwrapper.h"
13: #include "pa_vclass.h"
1.31 paf 14: #include "pa_globals.h"
1.30 paf 15: #include "pa_vint.h"
1.297 misha 16: #include "pa_vmethod_frame.h"
1.32 paf 17: #include "pa_types.h"
1.248 paf 18: #include "pa_venv.h"
19: #include "pa_vmath.h"
20: #include "pa_vstatus.h"
21: #include "pa_vrequest.h"
1.78 paf 22: #include "pa_vtable.h"
1.90 paf 23: #include "pa_vfile.h"
1.147 parser 24: #include "pa_dictionary.h"
1.208 paf 25: #include "pa_charset.h"
1.186 paf 26: #include "pa_charsets.h"
1.248 paf 27: #include "pa_cache_managers.h"
28: #include "pa_vmail.h"
29: #include "pa_vform.h"
30: #include "pa_vcookie.h"
31: #include "pa_vresponse.h"
32: #include "pa_vmemory.h"
1.253 paf 33: #include "pa_vconsole.h"
1.267 paf 34: #include "pa_vdate.h"
1.159 parser 35:
1.400 ! moko 36: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.399 2020/12/07 23:38:46 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 37:
1.248 paf 38: // consts
39:
1.269 paf 40: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 41:
1.82 paf 42: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 43: const char* DEFAULT_CONTENT_TYPE="text/html";
44:
1.369 moko 45: const uint LOOP_LIMIT=20000;
1.361 moko 46: const uint EXECUTE_RECOURSION_LIMIT=1000;
1.390 moko 47: const uint HTTPD_TIMEOUT=4;
1.369 moko 48: const size_t FILE_SIZE_LIMIT=512*1024*1024;
1.361 moko 49:
1.248 paf 50: // defines for globals
51:
52: #define MAIN_METHOD_NAME "main"
53: #define AUTO_METHOD_NAME "auto"
1.364 moko 54: #define USE_METHOD_NAME "use"
1.309 misha 55: #define AUTOUSE_METHOD_NAME "autouse"
1.364 moko 56:
1.248 paf 57: #define EXCEPTION_TYPE_PART_NAME "type"
58: #define EXCEPTION_SOURCE_PART_NAME "source"
59: #define EXCEPTION_COMMENT_PART_NAME "comment"
60:
1.364 moko 61: #define ORIGIN_KEY "origin"
62:
1.248 paf 63: // globals
64:
65: const String main_method_name(MAIN_METHOD_NAME);
66: const String auto_method_name(AUTO_METHOD_NAME);
1.364 moko 67: static const String use_method_name(USE_METHOD_NAME);
68: static const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 69:
1.248 paf 70: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
71: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
72: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
73: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
74:
1.364 moko 75: static const String origin_key(ORIGIN_KEY);
76:
1.369 moko 77: int pa_loop_limit=LOOP_LIMIT;
1.361 moko 78: int pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.390 moko 79: int pa_httpd_timeout=HTTPD_TIMEOUT;
1.369 moko 80: size_t pa_file_size_limit=FILE_SIZE_LIMIT;
1.361 moko 81:
1.248 paf 82: // defines for statics
83:
84: #define MIME_TYPES_NAME "MIME-TYPES"
85: #define CLASS_PATH_NAME "CLASS_PATH"
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 main_class_name(MAIN_CLASS_NAME);
93: static const String mime_types_name(MIME_TYPES_NAME);
1.395 moko 94: static const String class_path_name(CLASS_PATH_NAME);
1.361 moko 95:
1.395 moko 96: static const String charsets_name("CHARSETS");
97: static const String strict_vars_name("STRICT-VARS");
98: static const String prototype_name("OBJECT-PROTOTYPE");
99: static const String limits_name("LIMITS");
100: static const String loop_limit_name("max_loop");
101: static const String recoursion_limit_name("max_recoursion");
102: static const String file_size_limit_name("max_file_size");
103: static const String lock_wait_timeout_name("lock_wait_timeout");
104: static const String httpd_name("HTTPD");
105: static const String httpd_timeout_name("timeout");
106:
107: static const String conf_method_name("conf");
108: static const String post_process_method_name("postprocess");
109: static const String response_body_file_name("file");
1.248 paf 110:
1.344 moko 111: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
112: static const String body_name_upper(BODY_NAME_UPPER);
113:
114: // more static
115:
116: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
117: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
1.392 moko 118: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.344 moko 119: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
120:
1.248 paf 121: // defines
1.82 paf 122:
1.344 moko 123: #define CHARSET_NAME_UPPER "CHARSET"
124: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
125:
1.233 paf 126: // op.C
1.248 paf 127: VStateless_class& VClassMAIN_create();
1.123 paf 128:
1.157 parser 129: //
1.248 paf 130: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 131: String::Language adefault_lang):
1.248 paf 132: // private
133: anti_endless_execute_recoursion(0),
134:
135: // public
1.335 moko 136: allow_class_replace(false),
1.248 paf 137: method_frame(0),
138: rcontext(0),
139: wcontext(0),
140: flang(adefault_lang),
1.191 paf 141: fconnection(0),
1.371 moko 142: fin_cycle(0),
1.307 misha 143: fskip(SKIP_NOTHING),
1.248 paf 144:
145: // public
1.257 paf 146: request_info(arequest_info),
1.248 paf 147: sapi_info(asapi_info),
1.359 moko 148: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 149:
150: main_class(VClassMAIN_create()),
1.260 paf 151: form(*new VForm(charsets, arequest_info)),
1.248 paf 152: mail(*new VMail),
153: response(*new VResponse(arequest_info, charsets)),
1.298 misha 154: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 155: console(*new VConsole),
1.248 paf 156:
157: // private
158: configure_admin_done(false),
159:
160: // private defaults
161: fdefault_lang(adefault_lang),
162: // private mime types
163: mime_types(0)
1.157 parser 164: {
1.261 paf 165: pa_register_thread_request(*this);
166:
1.248 paf 167: // file_no=0 => unknown
1.347 moko 168: file_list+="UNKNOWN";
169: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 170:
1.178 paf 171: // maybe expire old caches
1.264 paf 172: cache_managers->maybe_expire();
1.178 paf 173:
1.157 parser 174: /// directly used
1.233 paf 175: // MAIN class, operators
1.353 moko 176: put_class(&main_class);
1.157 parser 177: // classes:
178: // table, file, random, mail, image, ...
1.248 paf 179: methoded_array().register_directly_used(*this);
1.157 parser 180:
181: /// methodless
1.354 moko 182:
1.157 parser 183: // env class
1.353 moko 184: put_class(new VEnv(asapi_info));
1.175 paf 185: // status class
1.353 moko 186: put_class(new VStatus());
1.157 parser 187: // request class
1.353 moko 188: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 189: // cookie class
1.353 moko 190: put_class(&cookie);
1.253 paf 191: // console class
1.353 moko 192: put_class(&console);
1.354 moko 193:
1.157 parser 194: /// methoded
1.354 moko 195:
1.157 parser 196: // response class
1.353 moko 197: put_class(&response);
1.157 parser 198: // form class
1.353 moko 199: put_class(&form);
1.213 paf 200: // mail class
1.353 moko 201: put_class(&mail);
1.157 parser 202: // math class
1.353 moko 203: put_class(new VMath);
1.248 paf 204: // memory class
1.353 moko 205: put_class(new VMemory);
1.117 paf 206: }
1.192 paf 207:
208: Request::~Request() {
209: #ifdef XML
210: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 211: if(const char* xml_generic_errors=xmlGenericErrors()) {
212: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 213: pa_free((void *)xml_generic_errors);
1.192 paf 214: }
215: #endif
216: }
1.236 paf 217:
1.248 paf 218: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 219:
1.355 moko 220: VStateless_class* Request::get_class(const String& name){
221: VStateless_class* result=classes().get(name);
1.313 misha 222: if(!result)
1.375 moko 223: if(const Method *method=main_class.get_element_method(autouse_method_name)){
1.364 moko 224: Value *vname=new VString(name);
225: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
226: frame.store_params(&vname, 1);
227: // we don't need the result
228: call(frame);
229: });
230: result=classes().get(name);
231: }
1.309 misha 232: return result;
233: }
234:
1.356 moko 235: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 236: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 237: }
1.356 moko 238:
1.395 moko 239:
240: #define CONF_OPTION(config, name, code, exception_name) \
241: if(config) \
242: if(Value* option=config->get_element(name)) { \
243: if(option->is_evaluated_expr()) { \
244: code; \
245: } else \
246: throw Exception(PARSER_RUNTIME, 0, "$main:" exception_name, name.cstr()); \
247: }
248:
1.248 paf 249: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 250: if(configure_admin_done)
1.356 moko 251: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 252: configure_admin_done=true;
253:
1.227 paf 254: // charsets must only be specified in method_frame config
1.208 paf 255: // so that users would not interfere
256:
257: /* $MAIN:CHARSETS[
258: $.charsetname1[/full/path/to/charset/file.cfg]
259: ...
260: ]
261: */
1.308 misha 262: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 263: if(!vcharsets->is_string()) {
1.248 paf 264: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 265: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 266: else
1.395 moko 267: throw Exception(PARSER_RUNTIME, 0, "$main:%s must be hash", charsets_name.cstr());
1.342 moko 268: }
1.208 paf 269: }
270:
1.330 moko 271: #ifdef STRICT_VARS
1.332 moko 272: VVoid::strict_vars=false;
1.330 moko 273: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
274: if(strict_vars->is_bool())
275: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 276: else
1.395 moko 277: throw Exception(PARSER_RUNTIME, 0, "$main:%s must be bool", strict_vars_name.cstr());
1.357 moko 278: }
279: #endif
280:
281: #ifdef OBJECT_PROTOTYPE
282: VClass::prototype=true;
283: if(Value* prototype=conf_class.get_element(prototype_name)) {
284: if(prototype->is_bool())
285: VClass::prototype=prototype->as_bool();
286: else
1.395 moko 287: throw Exception(PARSER_RUNTIME, 0, "$main:%s must be bool", prototype_name.cstr());
1.330 moko 288: }
289: #endif
290:
1.362 moko 291: Value* limits=conf_class.get_element(limits_name);
292:
1.361 moko 293: pa_loop_limit=LOOP_LIMIT;
1.395 moko 294: CONF_OPTION(limits, loop_limit_name, {
295: pa_loop_limit=option->as_int();
296: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
297: }, "LIMITS.%s must be int");
1.361 moko 298:
299: pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.395 moko 300: CONF_OPTION(limits, recoursion_limit_name, {
301: pa_execute_recoursion_limit=option->as_int();
302: if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
303: }, "LIMITS.%s must be int");
1.390 moko 304:
1.369 moko 305: pa_file_size_limit=FILE_SIZE_LIMIT;
1.395 moko 306: CONF_OPTION(limits, file_size_limit_name, {
307: double limit=option->as_double();
308: if(limit >= (double)SSIZE_MAX)
309: throw Exception(PARSER_RUNTIME, 0, "$main:LIMITS.%s must be less then %.15g", file_size_limit_name.cstr(), (double)SSIZE_MAX);
310: pa_file_size_limit=(size_t)limit;
311: if(pa_file_size_limit==0)
312: pa_file_size_limit=SSIZE_MAX;
313: }, "LIMITS.%s must be number");
1.361 moko 314:
1.372 moko 315: pa_lock_attempts=PA_LOCK_ATTEMPTS;
1.395 moko 316: CONF_OPTION(limits, lock_wait_timeout_name, {
317: double limit=option->as_double();
318: if(limit >= 3600*24)
319: throw Exception(PARSER_RUNTIME, 0, "$main:LIMITS.%s must be less then %d", lock_wait_timeout_name.cstr(), 3600*24);
320: pa_lock_attempts=(unsigned int)(limit*2)+1;
321: }, "LIMITS.%s must be number");
322:
323: Value* httpd=conf_class.get_element(httpd_name);
324:
325: pa_httpd_timeout=HTTPD_TIMEOUT;
326: CONF_OPTION(httpd, httpd_timeout_name, {
327: pa_httpd_timeout=option->as_int();
328: if(pa_httpd_timeout==0) pa_httpd_timeout=INT_MAX;
329: }, "HTTPD.%s must be int");
1.372 moko 330:
1.227 paf 331: // configure method_frame options
1.208 paf 332: // until someone with less privileges have overriden them
1.248 paf 333: methoded_array().configure_admin(*this);
1.208 paf 334: }
1.150 parser 335:
1.349 moko 336: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
337:
1.269 paf 338: #define PA_URI_FORMAT "%s: "
1.349 moko 339: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
340:
1.269 paf 341: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
342: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 343:
344: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
345: #define PA_SOURCE_VALUE details.problem_source->cstr(),
346:
347: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
348: snprintf(result, MAX_STRING, \
349: PA_URI_FORMAT \
350: f1 f2 \
351: PA_COMMENT_TYPE_FORMAT, \
352: request_info.uri, \
353: v1 v2 \
354: e.comment(), e.type() \
355: );
356:
1.269 paf 357: char* result=new(PointerFreeGC) char[MAX_STRING];
358:
359: if(details.problem_source) { // do we know the guy?
1.349 moko 360: if(details.origin.file_no) // do whe know where he came from?
361: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
362: else
363: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
364: } else {
365: if(details.origin.file_no) // do whe know where he came from?
366: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
367: else
368: EXCEPTION_CSTR(,,,)
369: }
1.269 paf 370:
371: return result;
372: }
1.272 paf 373:
374: void Request::configure() {
375: // configure admin options if not configured yet
376: if(!configure_admin_done)
377: configure_admin(main_class);
378:
379: // configure not-admin=user options
380: methoded_array().configure_user(*this);
381:
382: // $MAIN:MIME-TYPES
1.308 misha 383: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 384: if(Table *table=element->get_table())
1.395 moko 385: mime_types=table;
1.272 paf 386: }
1.64 paf 387: /**
388: load MAIN class, execute @main.
389: MAIN class consists of all the auto.p files we'd manage to find
390: plus
391: the file user requested us to process
392: all located classes become children of one another,
393: composing class we name 'MAIN'
1.180 paf 394:
395: @test log stack trace
396:
1.64 paf 397: */
1.390 moko 398: void Request::core(const char* config_filespec, bool header_only, const String &amain_method_name) {
1.169 parser 399: try {
1.211 paf 400: // loading config
1.384 moko 401: if(config_filespec)
1.387 moko 402: use_file_directly(*new String(config_filespec));
1.8 paf 403:
1.338 moko 404: // filling mail received
405: mail.fill_received(*this);
406:
1.272 paf 407: try {
408: // compile requested file
1.389 moko 409: if(request_info.path_translated)
410: use_file_directly(*new String(request_info.path_translated, String::L_TAINTED), true, true /* load auto.p files */);
1.272 paf 411: configure();
412: } catch(...) {
413: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
414: rethrow;
415: }
1.25 paf 416:
417: // execute @main[]
1.391 moko 418: const String* body_string=amain_method_name.is_empty() ? &String::Empty : execute_method(main_class, amain_method_name);
1.41 paf 419: if(!body_string)
1.390 moko 420: throw Exception(PARSER_RUNTIME, 0, "'%s' method not found", amain_method_name.cstr());
1.79 paf 421:
1.250 paf 422: // extract response body
1.344 moko 423: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 424: bool as_attachment=body_value!=0;
425: if(!body_value)
1.344 moko 426: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 427: if(!body_value)
428: body_value=new VString(*body_string); // just result of ^main[]
429:
1.119 paf 430: // @postprocess
1.383 moko 431: if(const Method *method=main_class.get_method(post_process_method_name)) {
432: // preparing to pass parameters to
433: // @postprocess[data]
434: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
435: frame.store_params(&body_value, 1);
436: call(frame);
437: body_value=&frame.result();
438: });
439: }
1.90 paf 440:
1.303 misha 441: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 442:
1.45 paf 443: // OK. write out the result
1.248 paf 444: output_result(body_file, header_only, as_attachment);
1.183 paf 445:
1.171 parser 446: } catch(const Exception& e) { // request handling problem
1.268 paf 447: try {
1.76 paf 448: // we're returning not result, but error explanation
1.269 paf 449:
450: Request::Exception_details details=get_details(e);
451: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 452:
453: // reset language to default
454: flang=fdefault_lang;
455:
456: // reset response
457: response.fields().clear();
458:
459: // this is what we'd return in $response:body
460: const String* body_string=0;
461:
462: // maybe we'd be lucky enough as to report an error
463: // in a gracefull way...
1.383 moko 464: if(const Method *method=main_class.get_method(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
465: // preparing to pass parameters to
466: // @unhandled_exception[exception;stack]
467:
468: // $stack[^table::create{name file lineno colno}]
469: Table::columns_type stack_trace_columns(new ArrayString);
470: *stack_trace_columns+=new String("name");
471: *stack_trace_columns+=new String("file");
472: *stack_trace_columns+=new String("lineno");
473: *stack_trace_columns+=new String("colno");
474: Table& stack_trace=*new Table(stack_trace_columns);
475: if(!exception_trace.is_empty()/*signed!*/)
476: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
477: Trace trace=exception_trace.get(i);
478: Table::element_type row(new ArrayString);
479:
480: *row+=trace.name(); // name column
481: Operation::Origin origin=trace.origin();
482: if(origin.file_no) {
483: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
484: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
485: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
486: }
487: stack_trace+=row;
1.233 paf 488: }
1.383 moko 489:
490: // future $response:body=
491: // execute ^unhandled_exception[exception;stack]
492: 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)
493:
494: Value *params[]={&details.vhash, new VTable(&stack_trace)};
495: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
496: frame.store_params(params, 2);
497: call(frame);
498: body_string=&frame.result().as_string();
499: });
1.258 paf 500: }
501:
1.273 paf 502: // conditionally log it
503: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
504: if(!vhandled || !vhandled->as_bool()) {
505: SAPI::log(sapi_info, "%s", exception_cstr);
506: }
507:
1.381 moko 508: if(body_string) { // could report an error beautifully?
509: VString body_vstring(*body_string);
510: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
511: // write it out the error
512: output_result(body_file, header_only, false);
513: } else {
514: // doing that ugly
515: SAPI::send_error(sapi_info, exception_cstr, !strcmp(e.type(), "file.missing") ? "404" : "500");
516: }
1.287 misha 517:
1.273 paf 518: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 519: Request::Exception_details details=get_details(e);
520: const char* exception_cstr=get_exception_cstr(e, details);
1.380 moko 521: // unconditionally log the beast in exception handler
522: throw Exception(0, 0, "Unhandled exception in %s", exception_cstr);
1.268 paf 523: }
1.1 paf 524: }
525: }
526:
1.266 paf 527: uint Request::register_file(String::Body file_spec) {
1.248 paf 528: file_list+=file_spec;
529: return file_list.count()-1;
530: }
531:
1.387 moko 532: void Request::use_file_directly(const String& file_spec, bool fail_on_file_absence, bool with_auto_p) {
1.73 paf 533: // cyclic dependence check
1.318 misha 534: if(used_files.get(file_spec))
1.248 paf 535: return;
1.318 misha 536: used_files.put(file_spec, true);
537:
1.385 moko 538: if(!fail_on_file_absence && !entry_exists(file_spec)) // ignore file absence if asked for
539: return;
1.318 misha 540:
1.386 moko 541: if(with_auto_p) {
542: // loading auto.p files from document_root/..
543: // to the one beside requested file.
544: // all assigned bases from upper dir
545: const char* target=file_spec.cstr();
546:
547: // all relative paths are calculated from main document
548: request_info.path_translated=target;
549:
550: const char* after=target;
551: size_t drlen=strlen(request_info.document_root);
552: if(memcmp(after, request_info.document_root, drlen)==0) {
553: after+=drlen;
554: if(after[-1]=='/')
555: --after;
556: }
557:
558: while(const char* before=strchr(after, '/')) {
559: String& sfile_spec=*new String;
560: if(after!=target) {
561: sfile_spec.append_strdup(target, before-target, String::L_CLEAN);
562: sfile_spec << "/" AUTO_FILE_NAME;
563:
1.387 moko 564: use_file_directly(sfile_spec, false /*ignore absence, sole user*/);
1.386 moko 565: }
566: for(after=before+1;*after=='/';after++);
567: }
568: }
569:
1.385 moko 570: if(const char* source=file_read_text(charsets, file_spec, true))
1.387 moko 571: use_buf(main_class, source, 0, register_file(file_spec));
1.318 misha 572: }
573:
574:
1.387 moko 575: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, bool with_auto_p) {
1.326 misha 576: if(file_name.is_empty())
1.366 moko 577: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 578:
1.318 misha 579: const String* filespec=0;
580:
581: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.388 moko 582: filespec=&full_disk_path(file_name);
1.318 misha 583: else if(use_filespec){ // search in current dir first
1.331 misha 584: size_t last_slash_pos=use_filespec->strrpbrk("/");
585: if(last_slash_pos!=STRING_NOT_FOUND)
586: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 587: }
588:
589: if(!filespec){
590: // prevent multiple scan CLASS_PATH for searching one file
591: if(searched_along_class_path.get(file_name))
592: return;
593: searched_along_class_path.put(file_name, true);
1.308 misha 594: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 595: if(element->is_string()) {
1.388 moko 596: filespec=file_exist(full_disk_path(element->as_string()), file_name); // found at class_path?
1.233 paf 597: } else if(Table *table=element->get_table()) {
1.318 misha 598: for(size_t i=table->count(); i--; ) {
1.248 paf 599: const String& path=*(*table->get(i))[0];
1.388 moko 600: if(filespec=file_exist(full_disk_path(path), file_name))
1.233 paf 601: break; // found along class_path
602: }
603: } else
1.366 moko 604: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 605: if(!filespec)
1.395 moko 606: throw Exception(PARSER_RUNTIME, &file_name, "not found along $main:" CLASS_PATH_NAME);
1.318 misha 607: } else
1.395 moko 608: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $main:" CLASS_PATH_NAME " were specified");
1.148 parser 609: }
1.230 paf 610:
1.387 moko 611: use_file_directly(*filespec, true, with_auto_p);
1.16 paf 612: }
613:
1.364 moko 614: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 615: static String use("USE");
616: try {
1.364 moko 617: static VHash* voptions=new VHash();
1.376 moko 618: if(const Method *method=main_class.get_method(use_method_name)){
1.364 moko 619: Value *params[]={new VString(file_name), voptions};
620: voptions->hash().put(origin_key, new VString(*use_filespec));
621:
622: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
623: frame.store_params(params, 2);
624: // we don't need the result
625: call(frame);
626: });
627: }
1.349 moko 628: } catch (...) {
629: exception_trace.push(Trace(&use, origin));
630: rethrow;
631: }
632: }
1.208 paf 633:
1.358 moko 634: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
635: // temporary zero @conf to avoid it second execution
1.248 paf 636: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 637: // temporary zero @auto to avoid it second execution
1.248 paf 638: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 639:
1.295 misha 640: // compile loaded classes
641: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 642:
1.248 paf 643: VString* vfilespec=
644: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 645:
646: for(size_t i=0; i<cclasses.count(); i++){
647: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 648:
649: // locate and execute possible @conf[] static
1.382 moko 650: if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
1.295 misha 651: configure_admin(cclass/*, executed.method->name*/);
652:
653: // locate and execute possible @auto[] static
1.382 moko 654: execute_method_if_exists(cclass, auto_method_name, vfilespec);
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:
1.388 moko 669: const String& Request::full_disk_path(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;
1.389 moko 674: }
675: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 676: #ifdef WIN32
1.389 moko 677: || relative_name.pos(":")==1 // DRIVE:
678: || relative_name.starts_with("\\\\") // UNC1
679: || relative_name.starts_with("//") // UNC2
1.247 paf 680: #endif
1.389 moko 681: )
682: return relative_name;
683:
684: return relative(request_info.path_translated ? request_info.path_translated : request_info.document_root, 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:
1.366 moko 711: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 712: // transcode text body when "text/*" or simple result
713: String::C output(body_file.value_ptr(), body_file.value_size());
714: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 715: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 716:
1.311 misha 717: // prepare header: Content-Length
718: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 719:
720: // send header
721: SAPI::send_header(r.sapi_info);
722:
723: // send body
724: if(!header_only)
725: SAPI::send_body(r.sapi_info, output.str, output.length);
726: }
727:
728: #ifndef DOXYGEN
729: struct Range
730: {
1.396 moko 731: uint64_t start;
732: uint64_t end;
1.267 paf 733: };
734: #endif
1.396 moko 735:
736: #define UNSET ((uint64_t)-1)
737:
1.313 misha 738: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 739: const char *p = s->cstr();
740: if(s->starts_with("bytes="))
741: p += 6;
742: Range r;
743: while(*p){
1.396 moko 744: r.start = UNSET;
745: r.end = UNSET;
1.267 paf 746: if(*p >= '0' && *p <= '9'){
1.396 moko 747: r.start = pa_atoul(p);
1.267 paf 748: while(*p>='0' && *p<='9') ++p;
749: }
750: if(*p++ != '-') break;
751: if(*p >= '0' && *p <= '9'){
1.396 moko 752: r.end = pa_atoul(p);
1.267 paf 753: while(*p>='0' && *p<='9') ++p;
754: }
755: if(*p == ',') ++p;
756: ar += r;
757: }
1.101 paf 758: }
1.267 paf 759:
1.400 ! moko 760: struct Send_range_action_info {
! 761: Request *r;
! 762: uint64_t offset;
! 763: uint64_t part_length;
! 764: };
! 765:
! 766: static void send_range(struct stat& /*finfo*/, int f, const String& /*file_spec*/, void *context){
! 767: Send_range_action_info &info = *(Send_range_action_info*)context;
! 768:
! 769: pa_lseek(f, info.offset, SEEK_SET);
! 770:
! 771: const size_t BUFSIZE = 128*0x400;
! 772: char buf[BUFSIZE];
! 773: do{
! 774: size_t to_read = info.part_length < BUFSIZE ? (size_t)info.part_length : BUFSIZE;
! 775: size_t to_write = file_block_read(f, buf, to_read);
! 776:
! 777: if(to_write == 0)
! 778: break;
! 779:
! 780: size_t size = SAPI::send_body(info.r->sapi_info, buf, to_write);
! 781: if(size != to_write)
! 782: break;
! 783:
! 784: info.part_length -= to_write;
! 785: } while (info.part_length);
! 786: }
! 787:
1.396 moko 788: static void output_pieces(Request& r, bool header_only, const String& filename, uint64_t content_length, Value& date, bool add_last_modified) {
1.315 misha 789: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 790:
1.339 moko 791: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.396 moko 792: uint64_t offset=0;
793: uint64_t part_length=content_length;
1.267 paf 794: if(range){
795: Array<Range> ar;
796: parse_range(new String(range), ar);
1.396 moko 797: int count = ar.count();
1.267 paf 798: if(count == 1){
799: Range &rg = ar.get_ref(0);
1.396 moko 800: if(rg.start == UNSET && rg.end == UNSET){
1.311 misha 801: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 802: return;
803: }
1.396 moko 804: if(rg.start == UNSET && rg.end != UNSET){
1.267 paf 805: rg.start = content_length - rg.end;
806: rg.end = content_length;
807: offset += rg.start;
808: part_length = rg.end-rg.start;
1.396 moko 809: }else if(rg.start != UNSET && rg.end == UNSET){
1.267 paf 810: rg.end = content_length-1;
811: offset += rg.start;
812: part_length -= rg.start;
813: }
814: if(part_length == 0){
1.311 misha 815: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 816: return;
817: }
1.311 misha 818: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.400 ! moko 819: char buf[MAX_STRING];
! 820: snprintf(buf, MAX_STRING, "bytes %.15g-%.15g/%.15g", (double)rg.start, (double)rg.end, (double)content_length);
1.315 misha 821: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 822: }else if(count != 0){
1.311 misha 823: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 824: return;
825: }
826: }
827:
1.398 moko 828: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format((double)part_length, "%.15g"));
1.267 paf 829:
1.314 misha 830: if(add_last_modified)
1.315 misha 831: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 832:
1.267 paf 833: SAPI::send_header(r.sapi_info);
834:
835: if(!header_only){
1.400 ! moko 836: Send_range_action_info info = { &r, offset, part_length};
! 837: file_read_action_under_lock(r.full_disk_path(filename), "send", send_range, &info);
1.267 paf 838: }
839: }
840:
1.248 paf 841: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 842: // header: cookies
1.248 paf 843: cookie.output_result(sapi_info);
1.51 paf 844:
1.394 moko 845: // $.file and $.name (when body is real vfile)
846: Value* vfile = body_file->fields().get(response_body_file_name);
847: Value* vname = body_file->fields().get(name_name);
848:
849: const String* sfile = vfile ? &vfile->as_string() : NULL;
850: const String* sname = vname ? &vname->as_string() : NULL;
851:
852: if(sname && *sname == NONAME_DAT)
853: sname = NULL;
1.92 paf 854:
1.314 misha 855: // Content-Disposition
1.394 moko 856: const String* disposition_name = sname ? sname->is_empty() ? NULL : sname : sfile;
857: if(disposition_name) {
858: VHash& hash=*new VHash();
859: hash.hash().put(value_name, new VString(as_attachment ? content_disposition_attachment : content_disposition_inline));
860: hash.hash().put(content_disposition_filename_name, new VString(*new String(*disposition_name, String::L_HTTP_HEADER)));
861: response.fields().put(content_disposition_name_upper, &hash);
862: }
1.267 paf 863:
1.394 moko 864: // _file_ content-type might be specified
865: Value* body_file_content_type = body_file->fields().get(content_type_name);
866: if(!body_file_content_type){
867: const String* scontent_name = sname && !sname->is_empty() ? sname : sfile;
868: if(scontent_name)
869: body_file_content_type = new VString(mime_type_of(scontent_name->cstr()));
1.267 paf 870: }
871:
1.312 misha 872: // set Content-Type
1.314 misha 873: if(body_file_content_type) {
874: // body file content type
1.344 moko 875: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 876: } else {
877: // default content type
1.344 moko 878: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 879: }
1.312 misha 880:
1.314 misha 881: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 882: Add_header_attribute_info info(*this);
1.281 paf 883: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 884:
1.394 moko 885: if(sfile) {
1.314 misha 886: // $response:[download|body][$.file[filespec]] -- optput specified file
1.367 moko 887: uint64_t content_length=0;
1.267 paf 888: time_t atime=0, mtime=0, ctime=0;
1.394 moko 889: file_stat(full_disk_path(*sfile), content_length, atime, mtime, ctime);
1.267 paf 890:
891: VDate* vdate=0;
892: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 893: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 894: vdate=static_cast<VDate*>(vdatep);
895: else
1.286 misha 896: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 897: }
898: if(!vdate)
1.346 moko 899: vdate=new VDate((pa_time_t)mtime);
1.62 paf 900:
1.399 moko 901: output_pieces(*this, header_only, *sfile, content_length, *vdate, info.add_last_modified);
1.267 paf 902: } else {
1.314 misha 903: if(body_file_content_type)
904: if(HashStringValue *hash=body_file_content_type->get_hash())
905: body_file_content_type=hash->get(value_name);
906:
1.366 moko 907: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 908: }
1.50 paf 909: }
1.104 paf 910:
1.328 misha 911: const String& Request::mime_type_of(const String* file_name) {
912: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
913: }
914:
1.248 paf 915: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 916: if(mime_types)
1.248 paf 917: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
918: String sext(++cext);
1.246 paf 919: Table::Action_options options;
1.342 moko 920: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 921: if(const String* result=mime_types->item(1))
922: return *result;
1.104 paf 923: else
1.395 moko 924: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 925: }
1.104 paf 926: }
1.248 paf 927:
928: return *new String("application/octet-stream");
929: }
930:
1.365 moko 931: const String* Request::get_used_filespec(uint file_no){
1.318 misha 932: if(file_no < file_list.count())
933: return new String(file_list[file_no], String::L_TAINTED);
934: return 0;
935: }
936:
1.248 paf 937: #ifdef XML
1.280 paf 938: xmlChar* Request::transcode(const String& s) {
1.248 paf 939: return charsets.source().transcode(s);
940: }
941:
1.280 paf 942: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 943: return charsets.source().transcode(s);
944: }
945:
1.280 paf 946: const String& Request::transcode(const xmlChar* s) {
1.248 paf 947: return charsets.source().transcode(s);
1.233 paf 948: }
1.248 paf 949: #endif
950:
1.349 moko 951: Request::Exception_details Request::get_details(const Exception& e) {
952: const String* problem_source=e.problem_source();
953: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
954: Operation::Origin origin={0, 0, 0};
1.248 paf 955:
1.349 moko 956: if(!exception_trace.is_empty()) {
957: Trace bottom=exception_trace.bottom_value();
1.350 moko 958: origin=bottom.origin();
959: if(!problem_source) { // we don't know who trigged the bug
960: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
961: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
962: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 963: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
964: } else {
965: // stack top contains not us, leaving intact to help ^throw
1.279 paf 966: }
1.248 paf 967: }
968:
969: // $.type
970: if(const char* type=e.type(true))
971: hash.put(exception_type_part_name, new VString(*new String(type)));
972:
973: // $.source
1.349 moko 974: if(problem_source)
975: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 976:
1.349 moko 977: // $.file $.lineno $.colno
978: if(origin.file_no){
1.347 moko 979: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
980: hash.put("lineno", new VInt(1+origin.line));
981: hash.put("colno", new VInt(1+origin.col));
1.248 paf 982: }
983:
984: // $.comment
985: if(const char* comment=e.comment(true))
1.349 moko 986: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 987:
988: // $.handled(0)
1.299 misha 989: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 990:
1.349 moko 991: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 992: }
1.337 moko 993:
994: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
995: frequest(arequest),
996: fwhere(awhere),
997: fname(aname),
998: saved(awhere.get_element(aname))
999: {
1000: Junction* junction;
1001: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1002: saved=0;
1003: frequest.put_element(fwhere, aname, awhat);
1004: }
1005:
1006: Temp_value_element::~Temp_value_element() {
1007: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1008: }
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