Annotation of parser3/src/main/pa_request.C, revision 1.307
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.299 misha 4: Copyright (c) 2001-2009 ArtLebedev Group (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:
1.307 ! misha 8: static const char * const IDENT_REQUEST_C="$Date: 2009-07-07 05:48:05 $";
1.1 paf 9:
1.69 paf 10: #include "pa_sapi.h"
1.53 paf 11: #include "pa_common.h"
1.1 paf 12: #include "pa_request.h"
1.3 paf 13: #include "pa_wwrapper.h"
14: #include "pa_vclass.h"
1.31 paf 15: #include "pa_globals.h"
1.30 paf 16: #include "pa_vint.h"
1.297 misha 17: #include "pa_vmethod_frame.h"
1.32 paf 18: #include "pa_types.h"
1.248 paf 19: #include "pa_venv.h"
20: #include "pa_vmath.h"
21: #include "pa_vstatus.h"
22: #include "pa_vrequest.h"
1.78 paf 23: #include "pa_vtable.h"
1.90 paf 24: #include "pa_vfile.h"
1.147 parser 25: #include "pa_dictionary.h"
1.208 paf 26: #include "pa_charset.h"
1.186 paf 27: #include "pa_charsets.h"
1.248 paf 28: #include "pa_cache_managers.h"
29: #include "pa_vmail.h"
30: #include "pa_vform.h"
31: #include "pa_vcookie.h"
32: #include "pa_vresponse.h"
33: #include "pa_vmemory.h"
1.253 paf 34: #include "pa_vconsole.h"
1.267 paf 35: #include "pa_vdate.h"
1.159 parser 36:
1.248 paf 37: // consts
38:
1.269 paf 39: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 40:
1.82 paf 41: /// content type of exception response, when no @MAIN:exception handler defined
1.248 paf 42: const char* UNHANDLED_EXCEPTION_CONTENT_TYPE="text/plain";
1.82 paf 43:
44: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 45: const char* DEFAULT_CONTENT_TYPE="text/html";
46: const char* ORIGINS_CONTENT_TYPE="text/plain";
47:
48: // defines for globals
49:
50: #define MAIN_METHOD_NAME "main"
51: #define AUTO_METHOD_NAME "auto"
52: #define BODY_NAME "body"
53: #define EXCEPTION_TYPE_PART_NAME "type"
54: #define EXCEPTION_SOURCE_PART_NAME "source"
55: #define EXCEPTION_COMMENT_PART_NAME "comment"
56:
57: // globals
58:
59: const String main_method_name(MAIN_METHOD_NAME);
60: const String auto_method_name(AUTO_METHOD_NAME);
1.289 misha 61: const String content_transfer_encoding_name(CONTENT_TRANSFER_ENCODING_NAME);
1.248 paf 62: const String content_disposition_name(CONTENT_DISPOSITION_NAME);
1.282 misha 63: const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.288 misha 64: const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
1.248 paf 65: const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME);
66: const String body_name(BODY_NAME);
67: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
68: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
69: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
70: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
71:
72: // defines for statics
73:
74: #define CHARSETS_NAME "CHARSETS"
75: #define MIME_TYPES_NAME "MIME-TYPES"
76: #define ORIGINS_MODE_NAME "ORIGINS"
77: #define CONF_METHOD_NAME "conf"
78: #define POST_PROCESS_METHOD_NAME "postprocess"
79: #define DOWNLOAD_NAME "download"
80: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 81: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 82:
83: // statics
84:
85: static const String charsets_name(CHARSETS_NAME);
86: static const String main_class_name(MAIN_CLASS_NAME);
87: static const String mime_types_name(MIME_TYPES_NAME);
88: static const String origins_mode_name(ORIGINS_MODE_NAME);
89: static const String conf_method_name(CONF_METHOD_NAME);
90: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
91: static const String download_name(DOWNLOAD_NAME);
92: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 93: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 94:
95: // defines
1.82 paf 96:
1.233 paf 97: // op.C
1.248 paf 98: VStateless_class& VClassMAIN_create();
1.123 paf 99:
1.157 parser 100: //
1.248 paf 101: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.252 paf 102: String::Language adefault_lang, bool status_allowed):
1.248 paf 103: // private
104: anti_endless_execute_recoursion(0),
105:
106: // public
107: method_frame(0),
108: rcontext(0),
109: wcontext(0),
110: flang(adefault_lang),
1.191 paf 111: fconnection(0),
1.307 ! misha 112: finterrupted(false),
! 113: fskip(SKIP_NOTHING),
! 114: fin_cycle(0),
1.248 paf 115:
116: // public
1.183 paf 117: #ifdef RESOURCES_DEBUG
1.248 paf 118: sql_connect_time(0),
119: sql_request_time(0),
120: #endif
121:
122: // public
1.257 paf 123: request_info(arequest_info),
1.248 paf 124: sapi_info(asapi_info),
125: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
126:
127: main_class(VClassMAIN_create()),
1.260 paf 128: form(*new VForm(charsets, arequest_info)),
1.248 paf 129: mail(*new VMail),
130: response(*new VResponse(arequest_info, charsets)),
1.298 misha 131: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 132: console(*new VConsole),
1.248 paf 133:
134: // private
135: configure_admin_done(false),
136:
137: // private defaults
138: fdefault_lang(adefault_lang),
139: // private mime types
140: mime_types(0)
1.157 parser 141: {
1.261 paf 142: pa_register_thread_request(*this);
143:
1.248 paf 144: // file_no=0 => unknown
1.263 paf 145: file_list+=String::Body("UNKNOWN");
146: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 147:
1.178 paf 148: // maybe expire old caches
1.264 paf 149: cache_managers->maybe_expire();
1.178 paf 150:
1.157 parser 151: /// directly used
1.233 paf 152: // MAIN class, operators
1.235 paf 153: classes().put(main_class.name(), &main_class);
1.157 parser 154: // classes:
155: // table, file, random, mail, image, ...
1.248 paf 156: methoded_array().register_directly_used(*this);
1.157 parser 157:
158: /// methodless
159: // env class
1.249 paf 160: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 161: // status class
1.179 paf 162: if(status_allowed)
1.249 paf 163: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 164: // request class
1.294 misha 165: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form));
1.157 parser 166: // cookie class
1.249 paf 167: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 168: // console class
1.285 misha 169: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 170: /// methoded
171: // response class
1.248 paf 172: classes().put(response.get_class()->name(), &response);
1.157 parser 173:
174: /// bases used
175: // form class
1.248 paf 176: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 177: // mail class
1.248 paf 178: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 179: // math class
1.248 paf 180: {
181: Value& math=*new VMath;
182: classes().put(math.get_class()->base_class()->name(), &math);
183: }
184: // memory class
185: {
186: Value& memory=*new VMemory;
187: classes().put(memory.get_class()->base_class()->name(), &memory);
188: }
1.117 paf 189: }
1.192 paf 190:
191: Request::~Request() {
192: #ifdef XML
193: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 194: if(const char* xml_generic_errors=xmlGenericErrors()) {
195: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 196: free((void *)xml_generic_errors);
197: }
198: #endif
199: }
1.236 paf 200:
1.248 paf 201: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 202:
1.248 paf 203: static void load_charset(HashStringValue::key_type akey,
204: HashStringValue::value_type avalue,
205: Request_charsets* charsets) {
1.249 paf 206: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 207: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 208: }
1.248 paf 209: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 210: if(configure_admin_done)
1.286 misha 211: throw Exception(PARSER_RUNTIME,
1.248 paf 212: 0,
1.208 paf 213: "parser already configured");
214: configure_admin_done=true;
215:
1.227 paf 216: // charsets must only be specified in method_frame config
1.208 paf 217: // so that users would not interfere
218:
219: /* $MAIN:CHARSETS[
220: $.charsetname1[/full/path/to/charset/file.cfg]
221: ...
222: ]
223: */
1.248 paf 224: if(Value* vcharsets=conf_class.get_element(charsets_name, conf_class, false)) {
1.240 paf 225: if(!vcharsets->is_string())
1.248 paf 226: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 227: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 228: else
1.286 misha 229: throw Exception(PARSER_RUNTIME,
1.240 paf 230: 0,
231: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 232: }
233:
1.227 paf 234: // configure method_frame options
1.208 paf 235: // until someone with less privileges have overriden them
1.248 paf 236: methoded_array().configure_admin(*this);
1.208 paf 237: }
1.150 parser 238:
1.269 paf 239: const char* Request::get_exception_cstr(
240: const Exception& e,
241: Request::Exception_details& details) {
242: #define PA_URI_FORMAT "%s: "
243: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
244: #define PA_SOURCE_FORMAT "'%s' "
245: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
246: char* result=new(PointerFreeGC) char[MAX_STRING];
247:
248: if(details.problem_source) { // do we know the guy?
249: if(details.trace) { // do whe know where he came from?
250: Operation::Origin origin=details.trace.origin();
251: snprintf(result, MAX_STRING,
252: PA_URI_FORMAT
253: PA_ORIGIN_FILE_POS_FORMAT
254: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
255: request_info.uri,
256: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
257: details.problem_source->cstr(),
258: e.comment(), e.type()
259: );
260: } else
261: snprintf(result, MAX_STRING,
262: PA_URI_FORMAT
263: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
264: request_info.uri,
265: details.problem_source->cstr(),
266: e.comment(), e.type()
267: );
268: } else
269: snprintf(result, MAX_STRING,
270: PA_URI_FORMAT
271: PA_COMMENT_TYPE_FORMAT,
272: request_info.uri,
273: e.comment(), e.type()
274: );
275:
276: return result;
277: }
1.272 paf 278:
279: void Request::configure() {
280: // configure admin options if not configured yet
281: if(!configure_admin_done)
282: configure_admin(main_class);
283:
284: // configure not-admin=user options
285: methoded_array().configure_user(*this);
286:
287: // $MAIN:MIME-TYPES
288: if(Value* element=main_class.get_element(mime_types_name, main_class, false))
289: if(Table *table=element->get_table())
290: mime_types=table;
291: }
1.64 paf 292: /**
293: load MAIN class, execute @main.
294: MAIN class consists of all the auto.p files we'd manage to find
295: plus
296: the file user requested us to process
297: all located classes become children of one another,
298: composing class we name 'MAIN'
1.180 paf 299:
300: @test log stack trace
301:
1.64 paf 302: */
1.248 paf 303: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.183 paf 304: #ifdef RESOURCES_DEBUG
305: //measures
306: struct timeval mt[10];
307: //measure:before all
308: gettimeofday(&mt[0],NULL);
309: #endif
1.169 parser 310: try {
1.271 paf 311: // filling mail received
312: mail.fill_received(*this);
313:
1.211 paf 314: // loading config
315: if(config_filespec) {
1.248 paf 316: const String& filespec=*new String(config_filespec);
1.233 paf 317: use_file(main_class,
1.248 paf 318: filespec, 0 /*main_alias*/,
319: true /*ignore class_path*/,
320: config_fail_on_read_problem,
321: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 322: }
1.8 paf 323:
1.72 paf 324: // loading auto.p files from document_root/..
325: // to the one beside requested file.
326: // all assigned bases from upper dir
327: {
1.248 paf 328: const char* after=request_info.path_translated;
329: size_t drlen=strlen(request_info.document_root);
330: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 331: after+=drlen;
332: if(after[-1]=='/')
333: --after;
334: }
335:
1.248 paf 336: while(const char* before=strchr(after, '/')) {
337: String& sfile_spec=*new String;
338: if(after!=request_info.path_translated) {
339: sfile_spec.append_strdup(
340: request_info.path_translated, before-request_info.path_translated,
341: String::L_CLEAN);
1.152 parser 342: sfile_spec << "/" AUTO_FILE_NAME;
343:
1.233 paf 344: use_file(main_class,
1.248 paf 345: sfile_spec,
346: 0 /*main_alias*/,
347: true /*ignore class_path*/,
348: true /*fail on read problem*/,
349: false /*but ignore absence, sole user*/);
1.115 paf 350: }
351: after=before+1;
1.72 paf 352: }
353: }
1.34 paf 354:
1.272 paf 355: try {
356: // compile requested file
357: String& spath_translated=*new String;
358: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
359: use_file(main_class,
360: spath_translated,
361: 0 /*main_alias*/,
362: true /*ignore class_path*/);
363:
364: configure();
365: } catch(...) {
366: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
367: rethrow;
368: }
1.25 paf 369:
1.183 paf 370: #ifdef RESOURCES_DEBUG
371: //measure:after compile
372: gettimeofday(&mt[1],NULL);
373: #endif
1.25 paf 374: // execute @main[]
1.248 paf 375: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 376: if(!body_string)
1.286 misha 377: throw Exception(PARSER_RUNTIME,
1.248 paf 378: 0,
1.145 parser 379: "'"MAIN_METHOD_NAME"' method not found");
1.79 paf 380:
1.183 paf 381: #ifdef RESOURCES_DEBUG
382: //measure:after main
383: gettimeofday(&mt[2],NULL);
384: #endif
385:
1.250 paf 386: // extract response body
387: Value* body_value=response.fields().get(download_name); // $response:download?
388: bool as_attachment=body_value!=0;
389: if(!body_value)
390: body_value=response.fields().get(body_name); // $response:body
391: if(!body_value)
392: body_value=new VString(*body_string); // just result of ^main[]
393:
1.119 paf 394: // @postprocess
1.248 paf 395: if(Value* value=main_class.get_element(post_process_method_name, main_class, false))
396: if(Junction* junction=value->get_junction())
1.91 paf 397: if(const Method *method=junction->method) {
398: // preparing to pass parameters to
1.119 paf 399: // @postprocess[data]
1.297 misha 400: VMethodFrame frame(/*method->name, */ *junction, 0/*no parent*/);
1.233 paf 401: frame.set_self(main_class);
1.91 paf 402:
1.300 misha 403: frame.store_params(&body_value, 1);
1.250 paf 404: body_value=&execute_method(frame, *method).as_value();
1.91 paf 405: }
1.90 paf 406:
1.303 misha 407: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 408:
1.183 paf 409: #ifdef RESOURCES_DEBUG
410: //measure:after postprocess
411: gettimeofday(&mt[3],NULL);
412: #endif
413:
1.45 paf 414: // OK. write out the result
1.248 paf 415: output_result(body_file, header_only, as_attachment);
1.183 paf 416:
417: #ifdef RESOURCES_DEBUG
418: //measure:after output_result
419: gettimeofday(&mt[9],NULL);
420: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
421:
422: double t[10];
423: for(int i=0;i<10;i++)
424: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
425: //measure:log2 compile,main,postprocess,output
1.248 paf 426: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
427: request_info.uri,
1.183 paf 428: t[1]-t[0],
429: t[2]-t[1],
430: t[3]-t[2],
431: sql_connect_time,sql_request_time,
432: t[9]-t[3]
433: );
434: #endif
1.171 parser 435: } catch(const Exception& e) { // request handling problem
1.268 paf 436: try {
1.76 paf 437: // we're returning not result, but error explanation
1.269 paf 438:
439: Request::Exception_details details=get_details(e);
440: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 441:
442: // reset language to default
443: flang=fdefault_lang;
444:
445: // reset response
446: response.fields().clear();
447:
448: // this is what we'd return in $response:body
449: const String* body_string=0;
450:
451: // maybe we'd be lucky enough as to report an error
452: // in a gracefull way...
453: if(Value* value=main_class.get_element(
454: *new String(UNHANDLED_EXCEPTION_METHOD_NAME),
455: main_class,
456: false)) {
457: if(Junction* junction=value->get_junction()) {
458: if(const Method *method=junction->method) {
1.287 misha 459: // preparing to pass parameters to
460: // @unhandled_exception[exception;stack]
1.297 misha 461: VMethodFrame frame(/*method->name, */ *junction, 0/*no caller*/);
1.287 misha 462: frame.set_self(main_class);
463:
464: // $stack[^table::create{name file lineno colno}]
465: Table::columns_type stack_trace_columns(new ArrayString);
466: *stack_trace_columns+=new String("name");
467: *stack_trace_columns+=new String("file");
468: *stack_trace_columns+=new String("lineno");
469: *stack_trace_columns+=new String("colno");
470: Table& stack_trace=*new Table(stack_trace_columns);
471: if(!exception_trace.is_empty()/*signed!*/)
472: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
473: Trace trace=exception_trace.get(i);
474: Table::element_type row(new ArrayString);
475:
476: *row+=trace.name(); // name column
477: Operation::Origin origin=trace.origin();
478: if(origin.file_no) {
479: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
480: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
481: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
482: }
483: stack_trace+=row;
484: }
485:
1.300 misha 486: Value *params[]={&details.vhash, new VTable(&stack_trace)};
487: frame.store_params(params, 2);
1.287 misha 488:
489: // future $response:body=
490: // execute ^unhandled_exception[exception;stack]
491: 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)
492: body_string=&execute_method(frame, *method).as_string();
1.233 paf 493: }
1.30 paf 494: }
1.258 paf 495: }
496:
497: if(!body_string) { // couldn't report an error beautifully?
498: // doing that ugly
499:
500: // future $response:content-type
501: response.fields().put(content_type_name,
502: new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
503: // future $response:body
1.269 paf 504: body_string=new String(exception_cstr);
1.258 paf 505: }
1.41 paf 506:
1.258 paf 507: VString body_vstring(*body_string);
1.303 misha 508: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 509:
1.273 paf 510: // conditionally log it
511: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
512: if(!vhandled || !vhandled->as_bool()) {
513: SAPI::log(sapi_info, "%s", exception_cstr);
514: }
515:
1.258 paf 516: // ERROR. write it out
517: output_result(body_file, header_only, false);
1.287 misha 518:
1.273 paf 519: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 520: Request::Exception_details details=get_details(e);
521: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 522: // unconditionally log the beast
523: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 524:
525: throw Exception(0,
526: 0,
527: "in %s",
528: exception_cstr);
1.268 paf 529: }
1.1 paf 530: }
531: }
532:
1.266 paf 533: uint Request::register_file(String::Body file_spec) {
1.248 paf 534: file_list+=file_spec;
535: return file_list.count()-1;
536: }
537:
538: void Request::use_file(VStateless_class& aclass,
539: const String& file_name, const String* main_alias,
540: bool ignore_class_path,
541: bool fail_on_read_problem,
542: bool fail_on_file_absence) {
1.73 paf 543: // cyclic dependence check
1.148 parser 544: if(used_files.get(file_name))
1.248 paf 545: return;
546: used_files.put(file_name, true);
1.73 paf 547:
1.248 paf 548: const String* file_spec;
1.153 parser 549: if(ignore_class_path) // ignore_class_path?
1.148 parser 550: file_spec=&file_name;
1.248 paf 551: else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.153 parser 552: file_spec=&absolute(file_name);
553: else {
554: file_spec=0;
1.248 paf 555: if(Value* element=main_class.get_element(class_path_name, main_class, false)) {
1.233 paf 556: if(element->is_string()) {
1.278 paf 557: file_spec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 558: } else if(Table *table=element->get_table()) {
1.248 paf 559: int size=table->count();
1.233 paf 560: for(int i=size; i--; ) {
1.248 paf 561: const String& path=*(*table->get(i))[0];
1.278 paf 562: if((file_spec=file_exist(absolute(path), file_name)))
1.233 paf 563: break; // found along class_path
564: }
565: } else
1.286 misha 566: throw Exception(PARSER_RUNTIME,
1.233 paf 567: 0,
568: "$" CLASS_PATH_NAME " must be string or table");
569: if(!file_spec)
1.286 misha 570: throw Exception(PARSER_RUNTIME,
1.233 paf 571: &file_name,
572: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
573: }
1.153 parser 574: if(!file_spec)
1.286 misha 575: throw Exception(PARSER_RUNTIME,
1.153 parser 576: &file_name,
1.203 paf 577: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 578: }
1.230 paf 579:
580: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
581: if(!entry_exists(*file_spec))
1.248 paf 582: return;
1.3 paf 583:
1.248 paf 584: if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem))
585: use_buf(aclass, source, main_alias, register_file(*file_spec));
1.16 paf 586: }
587:
1.208 paf 588:
1.248 paf 589: void Request::use_buf(VStateless_class& aclass,
590: const char* source, const String* main_alias,
1.266 paf 591: uint file_no,
592: int line_no_offset) {
1.233 paf 593: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 594: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 595: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 596: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 597:
1.295 misha 598: // compile loaded classes
599: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 600:
1.248 paf 601: VString* vfilespec=
602: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 603:
604: for(size_t i=0; i<cclasses.count(); i++){
605: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 606:
607: // locate and execute possible @conf[] static
1.295 misha 608: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
609: conf_method_name, vfilespec,
610: false/*no string result needed*/);
611: if(executed.method)
612: configure_admin(cclass/*, executed.method->name*/);
613:
614: // locate and execute possible @auto[] static
615: execute_nonvirtual_method(cclass,
616: auto_method_name, vfilespec,
617: false/*no result needed*/);
618: }
1.19 paf 619: }
620:
1.248 paf 621: const String& Request::relative(const char* apath, const String& relative_name) {
622: char *hpath=strdup(apath);
623: String& result=*new String;
624: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 625: result << hpath << "/";
1.248 paf 626: result << relative_name;
627: return result;
1.19 paf 628: }
629:
1.77 paf 630: const String& Request::absolute(const String& relative_name) {
1.217 paf 631: if(relative_name.first_char()=='/') {
1.248 paf 632: String& result=*new String(strdup(request_info.document_root));
1.104 paf 633: result << relative_name;
1.19 paf 634: return result;
635: } else
1.248 paf 636: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 637: #ifdef WIN32
638: || relative_name.pos(":")==1 // DRIVE:
639: || relative_name.starts_with("\\\\") // UNC1
640: || relative_name.starts_with("//") // UNC2
641: #endif
642: )
643: return relative_name;
644: else
1.248 paf 645: return relative(request_info.path_translated, relative_name);
1.1 paf 646: }
1.45 paf 647:
1.267 paf 648: #ifndef DOXYGEN
649: class Add_header_attribute_info
650: {
651: public:
652: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
653: Request& r;
654: bool add_last_modified;
655: };
656: #endif
1.248 paf 657: static void add_header_attribute(
1.290 misha 658: HashStringValue::key_type name,
659: HashStringValue::value_type value,
1.267 paf 660: Add_header_attribute_info* info) {
1.290 misha 661: if(name==BODY_NAME
662: || name==DOWNLOAD_NAME
663: || name==CHARSET_NAME)
1.101 paf 664: return;
1.290 misha 665:
1.305 misha 666: const char* aname=String(name, String::L_TAINTED).taint_cstr(String::L_URI, 0, &info->r.charsets);
1.101 paf 667:
1.267 paf 668: SAPI::add_header_attribute(info->r.sapi_info,
1.303 misha 669: aname,
1.304 misha 670: attributed_meaning_to_string(*value, String::L_URI, false).untaint_cstr(String::L_AS_IS, 0, &info->r.charsets)
1.303 misha 671: );
1.267 paf 672:
1.290 misha 673: if(strcasecmp(aname, "last-modified")==0)
1.303 misha 674: info->add_last_modified=false;
1.267 paf 675: }
676:
677: static void output_sole_piece(Request& r,
678: bool header_only,
679: VFile& body_file,
680: Value* body_file_content_type) {
681: // transcode text body when "text/*" or simple result
682: String::C output(body_file.value_ptr(), body_file.value_size());
683: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
684: output=Charset::transcode(output,
685: r.charsets.source(),
686: r.charsets.client());
687:
688: // prepare header: content-length
689: char content_length_cstr[MAX_NUMBER];
690: snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length);
691: SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr);
692:
693: // send header
694: SAPI::send_header(r.sapi_info);
695:
696: // send body
697: if(!header_only)
698: SAPI::send_body(r.sapi_info, output.str, output.length);
699: }
700:
701: #ifndef DOXYGEN
702: struct Range
703: {
704: size_t start;
705: size_t end;
706: };
707: #endif
708: static void parse_range(const String* s, Array<Range> &ar)
709: {
710: const char *p = s->cstr();
711: if(s->starts_with("bytes="))
712: p += 6;
713: Range r;
714: while(*p){
715: r.start = (size_t)-1;
716: r.end = (size_t)-1;
717: if(*p >= '0' && *p <= '9'){
718: r.start = atol(p);
719: while(*p>='0' && *p<='9') ++p;
720: }
721: if(*p++ != '-') break;
722: if(*p >= '0' && *p <= '9'){
723: r.end = atol(p);
724: while(*p>='0' && *p<='9') ++p;
725: }
726: if(*p == ',') ++p;
727: ar += r;
728: }
1.101 paf 729: }
1.267 paf 730:
731: static void output_pieces(Request& r,
732: bool header_only,
733: const String& filename,
734: size_t content_length,
735: Value& date,
736: bool add_last_modified)
737: {
1.270 paf 738: SAPI::add_header_attribute(r.sapi_info, "Accept-Ranges", "bytes");
739:
1.267 paf 740: const size_t BUFSIZE = 10*0x400;
741: char buf[BUFSIZE];
742: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
743: size_t offset=0;
744: size_t part_length=content_length;
745: if(range){
746: Array<Range> ar;
747: parse_range(new String(range), ar);
748: size_t count = ar.count();
749: if(count == 1){
750: Range &rg = ar.get_ref(0);
751: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
752: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
753: return;
754: }
755: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
756: rg.start = content_length - rg.end;
757: rg.end = content_length;
758: offset += rg.start;
759: part_length = rg.end-rg.start;
760: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
761: rg.end = content_length-1;
762: offset += rg.start;
763: part_length -= rg.start;
764: }
765: if(part_length == 0){
766: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
767: return;
768: }
769: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
770: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
771: SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf);
772: }else if(count != 0){
773: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
774: return;
775: }
776: }
777:
778:
779: snprintf(buf, BUFSIZE, "%u", part_length);
780: SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf);
781:
782: if(add_last_modified){
783: const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true);
784: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
785: }
786: SAPI::send_header(r.sapi_info);
787:
788: const String& filespec=r.absolute(filename);
789:
790: size_t sent = 0;
791: if(!header_only){
792: size_t to_read = 0;
793: size_t size = 0;
794: do{
795: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
796: File_read_result read_result=file_read(r.charsets, filespec,
797: false /*as text*/, 0/*params*/, true/*fail on problem*/,
798: buf, offset, to_read);
799: to_read=read_result.length;
800: if(to_read == 0)
801: break;
802: offset += to_read;
803:
804: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
805: sent += size;
806: if(size != to_read)
807: break;
808: part_length -= to_read;
809: }while(part_length);
810: }
811: }
812:
1.248 paf 813: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 814: // header: cookies
1.248 paf 815: cookie.output_result(sapi_info);
1.51 paf 816:
1.267 paf 817: // may be specified
818: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 819:
820: // content-disposition
1.267 paf 821: Value* vfile_name=body_file->fields().get(name_name);
822: if(!vfile_name) {
823: vfile_name=body_file->fields().get(response_body_file_name);
1.274 paf 824: if(vfile_name)
825: {
826: const String& sfile_name=vfile_name->as_string();
1.267 paf 827:
1.274 paf 828: char* name_cstr=sfile_name.cstrm();
829: if(char *after_slash=rsplit(name_cstr, '\\'))
830: name_cstr=after_slash;
831: if(char *after_slash=rsplit(name_cstr, '/'))
832: name_cstr=after_slash;
833: vfile_name=new VString(*new String(name_cstr));
834: }
1.267 paf 835: }
836: if(vfile_name) {
837: const String& sfile_name=vfile_name->as_string();
838: if(sfile_name!=NONAME_DAT) {
1.283 misha 839: VHash& hash=*new VHash();
840: HashStringValue &h=hash.hash();
1.288 misha 841: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.283 misha 842:
843: h.put(content_disposition_filename_name, vfile_name);
844: response.fields().put(content_disposition_name, &hash);
1.267 paf 845:
846: if(!body_file_content_type)
847: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 848: }
1.267 paf 849: }
850:
851: // set content-type
852: if(body_file_content_type) {
853: // body file content type
854: response.fields().put(content_type_name, body_file_content_type);
855: } else {
856: // default content type
857: response.fields().put_dont_replace(content_type_name,
858: new VString(*new String(DEFAULT_CONTENT_TYPE)));
859: }
1.49 paf 860:
1.62 paf 861: // prepare header: $response:fields without :body
1.267 paf 862: Add_header_attribute_info info(*this);
1.281 paf 863: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 864:
1.223 paf 865: if(body_file_content_type)
1.248 paf 866: if(HashStringValue *hash=body_file_content_type->get_hash())
867: body_file_content_type=hash->get(value_name);
1.50 paf 868:
1.267 paf 869: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
870: const String& sresponse_body_file=vresponse_body_file->as_string();
871: size_t content_length=0;
872: time_t atime=0, mtime=0, ctime=0;
873: file_stat(absolute(sresponse_body_file),
874: content_length,
875: atime, mtime, ctime);
876:
877: VDate* vdate=0;
878: if(Value* v=body_file->fields().get("mdate")) {
879: if(Value* vdatep=v->as(VDATE_TYPE, false))
880: vdate=static_cast<VDate*>(vdatep);
881: else
1.286 misha 882: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 883: }
884: if(!vdate)
885: vdate=new VDate(mtime);
1.62 paf 886:
1.267 paf 887: output_pieces(*this, header_only,
888: sresponse_body_file,
889: content_length,
890: *vdate,
891: info.add_last_modified);
892: } else {
893: output_sole_piece(*this, header_only,
894: *body_file, body_file_content_type);
895: }
1.50 paf 896: }
1.104 paf 897:
1.248 paf 898: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 899: if(mime_types)
1.248 paf 900: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
901: String sext(++cext);
1.246 paf 902: Table::Action_options options;
1.248 paf 903: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
904: if(const String* result=mime_types->item(1))
905: return *result;
1.104 paf 906: else
1.286 misha 907: throw Exception(PARSER_RUNTIME,
1.248 paf 908: 0,
1.212 paf 909: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 910: }
1.248 paf 911:
912: return *new String("application/octet-stream");
913: }
914:
915: #ifdef XML
1.280 paf 916: xmlChar* Request::transcode(const String& s) {
1.248 paf 917: return charsets.source().transcode(s);
918: }
919:
1.280 paf 920: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 921: return charsets.source().transcode(s);
922: }
923:
1.280 paf 924: const String& Request::transcode(const xmlChar* s) {
1.248 paf 925: return charsets.source().transcode(s);
1.233 paf 926: }
1.248 paf 927: #endif
928:
929:
930: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
931: Trace result;
932: if(!is_empty()) {
933: result=bottom_value();
934: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 935: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 936: fbottom++;
937: } else if(result.name()==problem_source) // it is that same guy?
938: fbottom++; // throw away that trace
1.279 paf 939: else {
940: // stack top contains not us,
941: // leaving result intact
942: // it would help ^throw
943: }
1.248 paf 944: }
945:
946: return result;
947: }
948:
949: Request::Exception_details Request::get_details(const Exception& e) {
950: const String* problem_source=e.problem_source();
951: Trace trace=exception_trace.extract_origin(problem_source);
952:
953: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
954:
955: // $.type
956: if(const char* type=e.type(true))
957: hash.put(exception_type_part_name, new VString(*new String(type)));
958:
959: // $.source
960: if(problem_source) {
1.306 misha 961: String& source=*new String(*problem_source, String::L_TAINTED);
1.248 paf 962: hash.put(exception_source_part_name, new VString(source));
963: }
964:
965: // $.file lineno colno
966: if(trace) {
967: const Operation::Origin origin=trace.origin();
1.263 paf 968: hash.put(String::Body("file"),
1.248 paf 969: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 970: hash.put(String::Body("lineno"), new VInt(1+origin.line));
971: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 972: }
973:
974: // $.comment
975: if(const char* comment=e.comment(true))
976: hash.put(exception_comment_part_name,
1.302 misha 977: new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 978:
979: // $.handled(0)
1.299 misha 980: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 981:
1.248 paf 982: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 983: }
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