Annotation of parser3/src/main/pa_request.C, revision 1.368
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:
1.368 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.367 2016/12/21 21:14:42 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"
1.364 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:
1.361 moko 77: int pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
78: int pa_loop_limit=LOOP_LIMIT;
79:
1.248 paf 80: // defines for statics
81:
82: #define CHARSETS_NAME "CHARSETS"
83: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 84: #define STRICT_VARS_NAME "STRICT-VARS"
1.357 moko 85: #define PROTOTYPE_NAME "OBJECT-PROTOTYPE"
1.362 moko 86: #define LIMITS_NAME "LIMITS"
87: #define RECOURSION_LIMIT_NAME "max_recoursion"
88: #define LOOP_LIMIT_NAME "max_loop"
1.248 paf 89: #define CONF_METHOD_NAME "conf"
90: #define POST_PROCESS_METHOD_NAME "postprocess"
91: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 92: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 93:
1.344 moko 94: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
95: #define BODY_NAME_UPPER "BODY"
96:
1.248 paf 97: // statics
98:
99: static const String charsets_name(CHARSETS_NAME);
100: static const String main_class_name(MAIN_CLASS_NAME);
101: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 102: static const String strict_vars_name(STRICT_VARS_NAME);
1.357 moko 103: static const String prototype_name(PROTOTYPE_NAME);
1.362 moko 104: static const String limits_name(LIMITS_NAME);
1.361 moko 105: static const String recoursion_limit_name(RECOURSION_LIMIT_NAME);
106: static const String loop_limit_name(LOOP_LIMIT_NAME);
107:
1.248 paf 108: static const String conf_method_name(CONF_METHOD_NAME);
109: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
110: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 111: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 112:
1.344 moko 113: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
114: static const String body_name_upper(BODY_NAME_UPPER);
115:
116: // more static
117:
118: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
119: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
120: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
121: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
122:
1.248 paf 123: // defines
1.82 paf 124:
1.344 moko 125: #define CHARSET_NAME_UPPER "CHARSET"
126: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
127:
1.233 paf 128: // op.C
1.248 paf 129: VStateless_class& VClassMAIN_create();
1.123 paf 130:
1.157 parser 131: //
1.248 paf 132: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 133: String::Language adefault_lang):
1.248 paf 134: // private
135: anti_endless_execute_recoursion(0),
136:
137: // public
1.335 moko 138: allow_class_replace(false),
1.248 paf 139: method_frame(0),
140: rcontext(0),
141: wcontext(0),
142: flang(adefault_lang),
1.191 paf 143: fconnection(0),
1.307 misha 144: finterrupted(false),
145: fskip(SKIP_NOTHING),
146: fin_cycle(0),
1.248 paf 147:
148: // public
1.257 paf 149: request_info(arequest_info),
1.248 paf 150: sapi_info(asapi_info),
1.359 moko 151: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 152:
153: main_class(VClassMAIN_create()),
1.260 paf 154: form(*new VForm(charsets, arequest_info)),
1.248 paf 155: mail(*new VMail),
156: response(*new VResponse(arequest_info, charsets)),
1.298 misha 157: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 158: console(*new VConsole),
1.248 paf 159:
160: // private
161: configure_admin_done(false),
162:
163: // private defaults
164: fdefault_lang(adefault_lang),
165: // private mime types
166: mime_types(0)
1.157 parser 167: {
1.261 paf 168: pa_register_thread_request(*this);
169:
1.248 paf 170: // file_no=0 => unknown
1.347 moko 171: file_list+="UNKNOWN";
172: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 173:
1.178 paf 174: // maybe expire old caches
1.264 paf 175: cache_managers->maybe_expire();
1.178 paf 176:
1.157 parser 177: /// directly used
1.233 paf 178: // MAIN class, operators
1.353 moko 179: put_class(&main_class);
1.157 parser 180: // classes:
181: // table, file, random, mail, image, ...
1.248 paf 182: methoded_array().register_directly_used(*this);
1.157 parser 183:
184: /// methodless
1.354 moko 185:
1.157 parser 186: // env class
1.353 moko 187: put_class(new VEnv(asapi_info));
1.175 paf 188: // status class
1.353 moko 189: put_class(new VStatus());
1.157 parser 190: // request class
1.353 moko 191: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 192: // cookie class
1.353 moko 193: put_class(&cookie);
1.253 paf 194: // console class
1.353 moko 195: put_class(&console);
1.354 moko 196:
1.157 parser 197: /// methoded
1.354 moko 198:
1.157 parser 199: // response class
1.353 moko 200: put_class(&response);
1.157 parser 201: // form class
1.353 moko 202: put_class(&form);
1.213 paf 203: // mail class
1.353 moko 204: put_class(&mail);
1.157 parser 205: // math class
1.353 moko 206: put_class(new VMath);
1.248 paf 207: // memory class
1.353 moko 208: put_class(new VMemory);
1.117 paf 209: }
1.192 paf 210:
211: Request::~Request() {
212: #ifdef XML
213: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 214: if(const char* xml_generic_errors=xmlGenericErrors()) {
215: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 216: pa_free((void *)xml_generic_errors);
1.192 paf 217: }
218: #endif
219: }
1.236 paf 220:
1.248 paf 221: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 222:
1.355 moko 223: VStateless_class* Request::get_class(const String& name){
224: VStateless_class* result=classes().get(name);
1.313 misha 225: if(!result)
1.364 moko 226: if(const Method *method=main_class.get_method(autouse_method_name)){
227: Value *vname=new VString(name);
228: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
229: frame.store_params(&vname, 1);
230: // we don't need the result
231: call(frame);
232: });
233: result=classes().get(name);
234: }
1.309 misha 235: return result;
236: }
237:
1.356 moko 238: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 239: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 240: }
1.356 moko 241:
1.248 paf 242: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 243: if(configure_admin_done)
1.356 moko 244: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 245: configure_admin_done=true;
246:
1.227 paf 247: // charsets must only be specified in method_frame config
1.208 paf 248: // so that users would not interfere
249:
250: /* $MAIN:CHARSETS[
251: $.charsetname1[/full/path/to/charset/file.cfg]
252: ...
253: ]
254: */
1.308 misha 255: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 256: if(!vcharsets->is_string()) {
1.248 paf 257: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 258: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 259: else
1.356 moko 260: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 261: }
1.208 paf 262: }
263:
1.330 moko 264: #ifdef STRICT_VARS
1.332 moko 265: VVoid::strict_vars=false;
1.330 moko 266: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
267: if(strict_vars->is_bool())
268: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 269: else
270: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
271: }
272: #endif
273:
274: #ifdef OBJECT_PROTOTYPE
275: VClass::prototype=true;
276: if(Value* prototype=conf_class.get_element(prototype_name)) {
277: if(prototype->is_bool())
278: VClass::prototype=prototype->as_bool();
279: else
280: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" PROTOTYPE_NAME " must be bool");
1.330 moko 281: }
282: #endif
283:
1.362 moko 284: Value* limits=conf_class.get_element(limits_name);
285:
1.361 moko 286: pa_loop_limit=LOOP_LIMIT;
1.362 moko 287: if(limits)
288: if(Value* loop_limit=limits->get_element(loop_limit_name)) {
289: if(loop_limit->is_evaluated_expr()) {
290: pa_loop_limit=loop_limit->as_int();
291: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
292: } else
293: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" LOOP_LIMIT_NAME " must be int");
294: }
1.361 moko 295:
296: pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.362 moko 297: if(limits)
298: if(Value* recoursion_limit=limits->get_element(recoursion_limit_name)) {
299: if(recoursion_limit->is_evaluated_expr()) {
300: pa_execute_recoursion_limit=recoursion_limit->as_int();
301: if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
302: } else
303: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" RECOURSION_LIMIT_NAME " must be int");
304: }
1.361 moko 305:
1.227 paf 306: // configure method_frame options
1.208 paf 307: // until someone with less privileges have overriden them
1.248 paf 308: methoded_array().configure_admin(*this);
1.208 paf 309: }
1.150 parser 310:
1.349 moko 311: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
312:
1.269 paf 313: #define PA_URI_FORMAT "%s: "
1.349 moko 314: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
315:
1.269 paf 316: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
317: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 318:
319: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
320: #define PA_SOURCE_VALUE details.problem_source->cstr(),
321:
322: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
323: snprintf(result, MAX_STRING, \
324: PA_URI_FORMAT \
325: f1 f2 \
326: PA_COMMENT_TYPE_FORMAT, \
327: request_info.uri, \
328: v1 v2 \
329: e.comment(), e.type() \
330: );
331:
1.269 paf 332: char* result=new(PointerFreeGC) char[MAX_STRING];
333:
334: if(details.problem_source) { // do we know the guy?
1.349 moko 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, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
337: else
338: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
339: } else {
340: if(details.origin.file_no) // do whe know where he came from?
341: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
342: else
343: EXCEPTION_CSTR(,,,)
344: }
1.269 paf 345:
346: return result;
347: }
1.272 paf 348:
349: void Request::configure() {
350: // configure admin options if not configured yet
351: if(!configure_admin_done)
352: configure_admin(main_class);
353:
354: // configure not-admin=user options
355: methoded_array().configure_user(*this);
356:
357: // $MAIN:MIME-TYPES
1.308 misha 358: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 359: if(Table *table=element->get_table())
360: mime_types=table;
361: }
1.64 paf 362: /**
363: load MAIN class, execute @main.
364: MAIN class consists of all the auto.p files we'd manage to find
365: plus
366: the file user requested us to process
367: all located classes become children of one another,
368: composing class we name 'MAIN'
1.180 paf 369:
370: @test log stack trace
371:
1.64 paf 372: */
1.248 paf 373: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 374: try {
1.211 paf 375: // loading config
376: if(config_filespec) {
1.248 paf 377: const String& filespec=*new String(config_filespec);
1.366 moko 378: use_file_directly(main_class, filespec, config_fail_on_read_problem, true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 379: }
1.8 paf 380:
1.338 moko 381: // filling mail received
382: mail.fill_received(*this);
383:
1.72 paf 384: // loading auto.p files from document_root/..
385: // to the one beside requested file.
386: // all assigned bases from upper dir
387: {
1.248 paf 388: const char* after=request_info.path_translated;
389: size_t drlen=strlen(request_info.document_root);
390: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 391: after+=drlen;
392: if(after[-1]=='/')
393: --after;
394: }
395:
1.248 paf 396: while(const char* before=strchr(after, '/')) {
397: String& sfile_spec=*new String;
398: if(after!=request_info.path_translated) {
1.366 moko 399: sfile_spec.append_strdup(request_info.path_translated, before-request_info.path_translated, String::L_CLEAN);
1.152 parser 400: sfile_spec << "/" AUTO_FILE_NAME;
401:
1.366 moko 402: use_file_directly(main_class, sfile_spec, true /*fail on read problem*/, false /*but ignore absence, sole user*/);
1.115 paf 403: }
1.317 misha 404: for(after=before+1;*after=='/';after++);
1.72 paf 405: }
406: }
1.34 paf 407:
1.272 paf 408: try {
409: // compile requested file
410: String& spath_translated=*new String;
411: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 412: use_file_directly(main_class, spath_translated);
1.272 paf 413:
414: configure();
415: } catch(...) {
416: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
417: rethrow;
418: }
1.25 paf 419:
420: // execute @main[]
1.248 paf 421: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 422: if(!body_string)
1.366 moko 423: throw Exception(PARSER_RUNTIME, 0, "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 424:
1.250 paf 425: // extract response body
1.344 moko 426: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 427: bool as_attachment=body_value!=0;
428: if(!body_value)
1.344 moko 429: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 430: if(!body_value)
431: body_value=new VString(*body_string); // just result of ^main[]
432:
1.119 paf 433: // @postprocess
1.308 misha 434: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 435: if(Junction* junction=value->get_junction())
1.91 paf 436: if(const Method *method=junction->method) {
437: // preparing to pass parameters to
1.119 paf 438: // @postprocess[data]
1.363 moko 439: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
440: frame.store_params(&body_value, 1);
441: call(frame);
442: body_value=&frame.result();
443: });
1.91 paf 444: }
1.90 paf 445:
1.303 misha 446: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 447:
1.45 paf 448: // OK. write out the result
1.248 paf 449: output_result(body_file, header_only, as_attachment);
1.183 paf 450:
1.171 parser 451: } catch(const Exception& e) { // request handling problem
1.268 paf 452: try {
1.76 paf 453: // we're returning not result, but error explanation
1.269 paf 454:
455: Request::Exception_details details=get_details(e);
456: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 457:
458: // reset language to default
459: flang=fdefault_lang;
460:
461: // reset response
462: response.fields().clear();
463:
464: // this is what we'd return in $response:body
465: const String* body_string=0;
466:
467: // maybe we'd be lucky enough as to report an error
468: // in a gracefull way...
1.308 misha 469: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 470: if(Junction* junction=value->get_junction()) {
471: if(const Method *method=junction->method) {
1.287 misha 472: // preparing to pass parameters to
473: // @unhandled_exception[exception;stack]
474:
475: // $stack[^table::create{name file lineno colno}]
476: Table::columns_type stack_trace_columns(new ArrayString);
477: *stack_trace_columns+=new String("name");
478: *stack_trace_columns+=new String("file");
479: *stack_trace_columns+=new String("lineno");
480: *stack_trace_columns+=new String("colno");
481: Table& stack_trace=*new Table(stack_trace_columns);
482: if(!exception_trace.is_empty()/*signed!*/)
483: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
484: Trace trace=exception_trace.get(i);
485: Table::element_type row(new ArrayString);
486:
487: *row+=trace.name(); // name column
488: Operation::Origin origin=trace.origin();
489: if(origin.file_no) {
490: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
491: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
492: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
493: }
494: stack_trace+=row;
495: }
496:
1.323 moko 497: // future $response:body=
498: // execute ^unhandled_exception[exception;stack]
499: 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)
500:
1.300 misha 501: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.363 moko 502: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
503: frame.store_params(params, 2);
504: call(frame);
505: body_string=&frame.result().as_string();
506: });
1.233 paf 507: }
1.30 paf 508: }
1.258 paf 509: }
510:
511: if(!body_string) { // couldn't report an error beautifully?
512: // doing that ugly
513:
514: // future $response:content-type
1.344 moko 515: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 516: // future $response:body
1.269 paf 517: body_string=new String(exception_cstr);
1.258 paf 518: }
1.41 paf 519:
1.258 paf 520: VString body_vstring(*body_string);
1.303 misha 521: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 522:
1.273 paf 523: // conditionally log it
524: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
525: if(!vhandled || !vhandled->as_bool()) {
526: SAPI::log(sapi_info, "%s", exception_cstr);
527: }
528:
1.258 paf 529: // ERROR. write it out
530: output_result(body_file, header_only, false);
1.287 misha 531:
1.273 paf 532: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 533: Request::Exception_details details=get_details(e);
534: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 535: // unconditionally log the beast
536: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 537:
1.366 moko 538: throw Exception(0, 0, "in %s", exception_cstr);
1.268 paf 539: }
1.1 paf 540: }
541: }
542:
1.266 paf 543: uint Request::register_file(String::Body file_spec) {
1.248 paf 544: file_list+=file_spec;
545: return file_list.count()-1;
546: }
547:
1.366 moko 548: void Request::use_file_directly(VStateless_class& aclass, const String& file_spec, bool fail_on_read_problem, bool fail_on_file_absence) {
1.73 paf 549: // cyclic dependence check
1.318 misha 550: if(used_files.get(file_spec))
1.248 paf 551: return;
1.318 misha 552: used_files.put(file_spec, true);
553:
554: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
555: if(!entry_exists(file_spec))
556: return;
557:
558: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
559: use_buf(aclass, source, 0, register_file(file_spec));
560: }
561:
562:
1.349 moko 563: void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/*absolute*/) {
1.326 misha 564: if(file_name.is_empty())
1.366 moko 565: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 566:
1.318 misha 567: const String* filespec=0;
568:
569: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
570: filespec=&absolute(file_name);
571: else if(use_filespec){ // search in current dir first
1.331 misha 572: size_t last_slash_pos=use_filespec->strrpbrk("/");
573: if(last_slash_pos!=STRING_NOT_FOUND)
574: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 575: }
576:
577: if(!filespec){
578: // prevent multiple scan CLASS_PATH for searching one file
579: if(searched_along_class_path.get(file_name))
580: return;
581: searched_along_class_path.put(file_name, true);
1.308 misha 582: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 583: if(element->is_string()) {
1.318 misha 584: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 585: } else if(Table *table=element->get_table()) {
1.318 misha 586: for(size_t i=table->count(); i--; ) {
1.248 paf 587: const String& path=*(*table->get(i))[0];
1.318 misha 588: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 589: break; // found along class_path
590: }
591: } else
1.366 moko 592: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 593: if(!filespec)
1.366 moko 594: throw Exception(PARSER_RUNTIME, &file_name, "not found along $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 595: } else
1.366 moko 596: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 597: }
1.230 paf 598:
1.318 misha 599: use_file_directly(aclass, *filespec);
1.16 paf 600: }
601:
1.364 moko 602: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 603: static String use("USE");
604: try {
1.364 moko 605: static VHash* voptions=new VHash();
606: if(const Method *method=main_class.get_method(use_method_name)){
607: Value *params[]={new VString(file_name), voptions};
608: voptions->hash().put(origin_key, new VString(*use_filespec));
609:
610: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
611: frame.store_params(params, 2);
612: // we don't need the result
613: call(frame);
614: });
615: }
1.349 moko 616: } catch (...) {
617: exception_trace.push(Trace(&use, origin));
618: rethrow;
619: }
620: }
1.208 paf 621:
1.358 moko 622: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
623: // temporary zero @conf to avoid it second execution
1.248 paf 624: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 625: // temporary zero @auto to avoid it second execution
1.248 paf 626: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 627:
1.295 misha 628: // compile loaded classes
629: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 630:
1.248 paf 631: VString* vfilespec=
632: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 633:
634: for(size_t i=0; i<cclasses.count(); i++){
635: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 636:
637: // locate and execute possible @conf[] static
1.358 moko 638: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass, conf_method_name, vfilespec, false/*no string result needed*/);
1.295 misha 639: if(executed.method)
640: configure_admin(cclass/*, executed.method->name*/);
641:
642: // locate and execute possible @auto[] static
1.358 moko 643: execute_nonvirtual_method(cclass, auto_method_name, vfilespec, false/*no result needed*/);
1.336 moko 644:
645: cclass.enable_default_setter();
1.295 misha 646: }
1.19 paf 647: }
648:
1.248 paf 649: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 650: char *hpath=pa_strdup(apath);
1.248 paf 651: String& result=*new String;
652: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 653: result << hpath << "/";
1.248 paf 654: result << relative_name;
655: return result;
1.19 paf 656: }
657:
1.77 paf 658: const String& Request::absolute(const String& relative_name) {
1.217 paf 659: if(relative_name.first_char()=='/') {
1.341 moko 660: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 661: result << relative_name;
1.19 paf 662: return result;
663: } else
1.248 paf 664: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 665: #ifdef WIN32
666: || relative_name.pos(":")==1 // DRIVE:
667: || relative_name.starts_with("\\\\") // UNC1
668: || relative_name.starts_with("//") // UNC2
669: #endif
670: )
671: return relative_name;
672: else
1.248 paf 673: return relative(request_info.path_translated, relative_name);
1.1 paf 674: }
1.45 paf 675:
1.267 paf 676: #ifndef DOXYGEN
677: class Add_header_attribute_info
678: {
679: public:
680: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
681: Request& r;
682: bool add_last_modified;
683: };
684: #endif
1.344 moko 685: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
686: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 687: return;
1.290 misha 688:
1.345 moko 689: if(name==LAST_MODIFIED_NAME_UPPER)
690: info->add_last_modified=false;
691:
1.316 misha 692: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 693:
1.267 paf 694: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 695: aname,
1.316 misha 696: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 697: );
1.267 paf 698: }
699:
1.366 moko 700: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 701: // transcode text body when "text/*" or simple result
702: String::C output(body_file.value_ptr(), body_file.value_size());
703: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 704: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 705:
1.311 misha 706: // prepare header: Content-Length
707: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 708:
709: // send header
710: SAPI::send_header(r.sapi_info);
711:
712: // send body
713: if(!header_only)
714: SAPI::send_body(r.sapi_info, output.str, output.length);
715: }
716:
717: #ifndef DOXYGEN
718: struct Range
719: {
720: size_t start;
721: size_t end;
722: };
723: #endif
1.313 misha 724: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 725: const char *p = s->cstr();
726: if(s->starts_with("bytes="))
727: p += 6;
728: Range r;
729: while(*p){
730: r.start = (size_t)-1;
731: r.end = (size_t)-1;
732: if(*p >= '0' && *p <= '9'){
733: r.start = atol(p);
734: while(*p>='0' && *p<='9') ++p;
735: }
736: if(*p++ != '-') break;
737: if(*p >= '0' && *p <= '9'){
738: r.end = atol(p);
739: while(*p>='0' && *p<='9') ++p;
740: }
741: if(*p == ',') ++p;
742: ar += r;
743: }
1.101 paf 744: }
1.267 paf 745:
1.366 moko 746: static void output_pieces(Request& r, bool header_only, const String& filename, size_t content_length, Value& date, bool add_last_modified) {
1.315 misha 747: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 748:
1.267 paf 749: const size_t BUFSIZE = 10*0x400;
750: char buf[BUFSIZE];
1.339 moko 751: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 752: size_t offset=0;
753: size_t part_length=content_length;
754: if(range){
755: Array<Range> ar;
756: parse_range(new String(range), ar);
757: size_t count = ar.count();
758: if(count == 1){
759: Range &rg = ar.get_ref(0);
760: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 761: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 762: return;
763: }
764: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
765: rg.start = content_length - rg.end;
766: rg.end = content_length;
767: offset += rg.start;
768: part_length = rg.end-rg.start;
769: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
770: rg.end = content_length-1;
771: offset += rg.start;
772: part_length -= rg.start;
773: }
774: if(part_length == 0){
1.311 misha 775: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 776: return;
777: }
1.311 misha 778: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 779: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 780: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 781: }else if(count != 0){
1.311 misha 782: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 783: return;
784: }
785: }
786:
787:
1.311 misha 788: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 789:
1.314 misha 790: if(add_last_modified)
1.315 misha 791: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 792:
1.267 paf 793: SAPI::send_header(r.sapi_info);
794:
795: const String& filespec=r.absolute(filename);
796:
797: size_t sent = 0;
798: if(!header_only){
799: size_t to_read = 0;
800: size_t size = 0;
801: do{
802: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
803: File_read_result read_result=file_read(r.charsets, filespec,
804: false /*as text*/, 0/*params*/, true/*fail on problem*/,
805: buf, offset, to_read);
806: to_read=read_result.length;
807: if(to_read == 0)
808: break;
809: offset += to_read;
810:
811: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
812: sent += size;
813: if(size != to_read)
814: break;
815: part_length -= to_read;
816: }while(part_length);
817: }
818: }
819:
1.248 paf 820: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 821: // header: cookies
1.248 paf 822: cookie.output_result(sapi_info);
1.51 paf 823:
1.314 misha 824: // _file_ content-type might be specified
1.267 paf 825: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 826:
1.314 misha 827: // Content-Disposition
1.267 paf 828: Value* vfile_name=body_file->fields().get(name_name);
829: if(!vfile_name) {
830: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 831: if(vfile_name) {
832: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 833: if(char *after_slash=rsplit(name_cstr, '\\'))
834: name_cstr=after_slash;
835: if(char *after_slash=rsplit(name_cstr, '/'))
836: name_cstr=after_slash;
1.327 misha 837: vfile_name=new VString(*new String(name_cstr));
1.274 paf 838: }
1.267 paf 839: }
840: if(vfile_name) {
841: const String& sfile_name=vfile_name->as_string();
842: if(sfile_name!=NONAME_DAT) {
1.283 misha 843: VHash& hash=*new VHash();
844: HashStringValue &h=hash.hash();
1.288 misha 845: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 846: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 847:
1.344 moko 848: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 849:
850: if(!body_file_content_type)
851: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 852: }
1.267 paf 853: }
854:
1.312 misha 855: // set Content-Type
1.314 misha 856: if(body_file_content_type) {
857: // body file content type
1.344 moko 858: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 859: } else {
860: // default content type
1.344 moko 861: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 862: }
1.312 misha 863:
1.314 misha 864: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 865: Add_header_attribute_info info(*this);
1.281 paf 866: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 867:
1.267 paf 868: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 869: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 870: const String& sresponse_body_file=vresponse_body_file->as_string();
1.367 moko 871: uint64_t content_length=0;
1.267 paf 872: time_t atime=0, mtime=0, ctime=0;
1.366 moko 873: file_stat(absolute(sresponse_body_file), content_length, atime, mtime, ctime);
1.267 paf 874:
875: VDate* vdate=0;
876: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 877: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 878: vdate=static_cast<VDate*>(vdatep);
879: else
1.286 misha 880: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 881: }
882: if(!vdate)
1.346 moko 883: vdate=new VDate((pa_time_t)mtime);
1.62 paf 884:
1.368 ! moko 885: output_pieces(*this, header_only, sresponse_body_file, (size_t)content_length, *vdate, info.add_last_modified);
1.267 paf 886: } else {
1.314 misha 887: if(body_file_content_type)
888: if(HashStringValue *hash=body_file_content_type->get_hash())
889: body_file_content_type=hash->get(value_name);
890:
1.366 moko 891: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 892: }
1.50 paf 893: }
1.104 paf 894:
1.328 misha 895: const String& Request::mime_type_of(const String* file_name) {
896: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
897: }
898:
1.248 paf 899: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 900: if(mime_types)
1.248 paf 901: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
902: String sext(++cext);
1.246 paf 903: Table::Action_options options;
1.342 moko 904: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 905: if(const String* result=mime_types->item(1))
906: return *result;
1.104 paf 907: else
1.366 moko 908: throw Exception(PARSER_RUNTIME, 0, 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:
1.365 moko 915: const String* Request::get_used_filespec(uint file_no){
1.318 misha 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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