Annotation of parser3/src/main/pa_request.C, revision 1.287
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.275 paf 4: Copyright (c) 2001-2005 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:
1.287 ! misha 8: static const char * const IDENT_REQUEST_C="$Date: 2007/04/23 10:30:32 $";
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"
1.112 paf 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);
61: const String content_disposition_name(CONTENT_DISPOSITION_NAME);
1.282 misha 62: const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.248 paf 63: const String content_disposition_value(CONTENT_DISPOSITION_VALUE);
64: const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME);
65: const String body_name(BODY_NAME);
66: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
67: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
68: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
69: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
70:
71: // defines for statics
72:
73: #define CHARSETS_NAME "CHARSETS"
74: #define MIME_TYPES_NAME "MIME-TYPES"
75: #define ORIGINS_MODE_NAME "ORIGINS"
76: #define CONF_METHOD_NAME "conf"
77: #define POST_PROCESS_METHOD_NAME "postprocess"
78: #define DOWNLOAD_NAME "download"
79: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 80: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 81:
82: // statics
83:
84: static const String charsets_name(CHARSETS_NAME);
85: static const String main_class_name(MAIN_CLASS_NAME);
86: static const String mime_types_name(MIME_TYPES_NAME);
87: static const String origins_mode_name(ORIGINS_MODE_NAME);
88: static const String conf_method_name(CONF_METHOD_NAME);
89: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
90: static const String download_name(DOWNLOAD_NAME);
91: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 92: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 93:
94: // defines
1.82 paf 95:
1.233 paf 96: // op.C
1.248 paf 97: VStateless_class& VClassMAIN_create();
1.123 paf 98:
1.157 parser 99: //
1.248 paf 100: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.252 paf 101: String::Language adefault_lang, bool status_allowed):
1.248 paf 102: // private
103: anti_endless_execute_recoursion(0),
104:
105: // public
106: method_frame(0),
107: rcontext(0),
108: wcontext(0),
109: flang(adefault_lang),
1.191 paf 110: fconnection(0),
1.281 paf 111: finterrupted(false),fskip(SKIP_NOTHING),
1.248 paf 112:
113: // public
1.183 paf 114: #ifdef RESOURCES_DEBUG
1.248 paf 115: sql_connect_time(0),
116: sql_request_time(0),
117: #endif
118:
119: // public
1.257 paf 120: request_info(arequest_info),
1.248 paf 121: sapi_info(asapi_info),
122: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
123:
124: main_class(VClassMAIN_create()),
1.260 paf 125: form(*new VForm(charsets, arequest_info)),
1.248 paf 126: mail(*new VMail),
127: response(*new VResponse(arequest_info, charsets)),
128: cookie(*new VCookie),
1.285 misha 129: console(*new VConsole),
1.248 paf 130:
131: // private
132: configure_admin_done(false),
133:
134: // private defaults
135: fdefault_lang(adefault_lang),
136: // private mime types
137: mime_types(0)
1.157 parser 138: {
1.261 paf 139: pa_register_thread_request(*this);
140:
1.248 paf 141: // file_no=0 => unknown
1.263 paf 142: file_list+=String::Body("UNKNOWN");
143: file_list+=String::Body("-body of process-"); // pseudo_file_no__process
1.186 paf 144:
1.178 paf 145: // maybe expire old caches
1.264 paf 146: cache_managers->maybe_expire();
1.178 paf 147:
1.157 parser 148: /// directly used
1.233 paf 149: // MAIN class, operators
1.235 paf 150: classes().put(main_class.name(), &main_class);
1.157 parser 151: // classes:
152: // table, file, random, mail, image, ...
1.248 paf 153: methoded_array().register_directly_used(*this);
1.157 parser 154:
155: /// methodless
156: // env class
1.249 paf 157: classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));
1.175 paf 158: // status class
1.179 paf 159: if(status_allowed)
1.249 paf 160: classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
1.157 parser 161: // request class
1.249 paf 162: classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets));
1.157 parser 163: // cookie class
1.249 paf 164: classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);
1.253 paf 165: // console class
1.285 misha 166: classes().put(String::Body(CONSOLE_CLASS_NAME), &console);
1.157 parser 167: /// methoded
168: // response class
1.248 paf 169: classes().put(response.get_class()->name(), &response);
1.157 parser 170:
171: /// bases used
172: // form class
1.248 paf 173: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 174: // mail class
1.248 paf 175: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 176: // math class
1.248 paf 177: {
178: Value& math=*new VMath;
179: classes().put(math.get_class()->base_class()->name(), &math);
180: }
181: // memory class
182: {
183: Value& memory=*new VMemory;
184: classes().put(memory.get_class()->base_class()->name(), &memory);
185: }
1.117 paf 186: }
1.192 paf 187:
188: Request::~Request() {
189: #ifdef XML
190: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 191: if(const char* xml_generic_errors=xmlGenericErrors()) {
192: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.192 paf 193: free((void *)xml_generic_errors);
194: }
195: #endif
196: }
1.236 paf 197:
1.248 paf 198: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 199:
1.248 paf 200: static void load_charset(HashStringValue::key_type akey,
201: HashStringValue::value_type avalue,
202: Request_charsets* charsets) {
1.249 paf 203: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 204: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 205: }
1.248 paf 206: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 207: if(configure_admin_done)
1.286 misha 208: throw Exception(PARSER_RUNTIME,
1.248 paf 209: 0,
1.208 paf 210: "parser already configured");
211: configure_admin_done=true;
212:
1.227 paf 213: // charsets must only be specified in method_frame config
1.208 paf 214: // so that users would not interfere
215:
216: /* $MAIN:CHARSETS[
217: $.charsetname1[/full/path/to/charset/file.cfg]
218: ...
219: ]
220: */
1.248 paf 221: if(Value* vcharsets=conf_class.get_element(charsets_name, conf_class, false)) {
1.240 paf 222: if(!vcharsets->is_string())
1.248 paf 223: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 224: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 225: else
1.286 misha 226: throw Exception(PARSER_RUNTIME,
1.240 paf 227: 0,
228: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.208 paf 229: }
230:
1.227 paf 231: // configure method_frame options
1.208 paf 232: // until someone with less privileges have overriden them
1.248 paf 233: methoded_array().configure_admin(*this);
1.208 paf 234: }
1.150 parser 235:
1.269 paf 236: const char* Request::get_exception_cstr(
237: const Exception& e,
238: Request::Exception_details& details) {
239: #define PA_URI_FORMAT "%s: "
240: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
241: #define PA_SOURCE_FORMAT "'%s' "
242: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
243: char* result=new(PointerFreeGC) char[MAX_STRING];
244:
245: if(details.problem_source) { // do we know the guy?
246: if(details.trace) { // do whe know where he came from?
247: Operation::Origin origin=details.trace.origin();
248: snprintf(result, MAX_STRING,
249: PA_URI_FORMAT
250: PA_ORIGIN_FILE_POS_FORMAT
251: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
252: request_info.uri,
253: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
254: details.problem_source->cstr(),
255: e.comment(), e.type()
256: );
257: } else
258: snprintf(result, MAX_STRING,
259: PA_URI_FORMAT
260: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
261: request_info.uri,
262: details.problem_source->cstr(),
263: e.comment(), e.type()
264: );
265: } else
266: snprintf(result, MAX_STRING,
267: PA_URI_FORMAT
268: PA_COMMENT_TYPE_FORMAT,
269: request_info.uri,
270: e.comment(), e.type()
271: );
272:
273: return result;
274: }
1.272 paf 275:
276: void Request::configure() {
277: // configure admin options if not configured yet
278: if(!configure_admin_done)
279: configure_admin(main_class);
280:
281: // configure not-admin=user options
282: methoded_array().configure_user(*this);
283:
284: // $MAIN:MIME-TYPES
285: if(Value* element=main_class.get_element(mime_types_name, main_class, false))
286: if(Table *table=element->get_table())
287: mime_types=table;
288: }
1.64 paf 289: /**
290: load MAIN class, execute @main.
291: MAIN class consists of all the auto.p files we'd manage to find
292: plus
293: the file user requested us to process
294: all located classes become children of one another,
295: composing class we name 'MAIN'
1.180 paf 296:
297: @test log stack trace
298:
1.64 paf 299: */
1.248 paf 300: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.183 paf 301: #ifdef RESOURCES_DEBUG
302: //measures
303: struct timeval mt[10];
304: //measure:before all
305: gettimeofday(&mt[0],NULL);
306: #endif
1.169 parser 307: try {
1.271 paf 308: // filling cookies
309: cookie.fill_fields(request_info);
310:
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[]
1.276 paf 393: // ensure that body_value has no just L_TAINTED parts left
394: if(body_value->is_string())
395: {
396: String& untainted=*new String();
397: untainted.append(*body_value->get_string(), flang);
398: body_value=new VString(untainted);
399: }
1.250 paf 400:
1.119 paf 401: // @postprocess
1.248 paf 402: if(Value* value=main_class.get_element(post_process_method_name, main_class, false))
403: if(Junction* junction=value->get_junction())
1.91 paf 404: if(const Method *method=junction->method) {
405: // preparing to pass parameters to
1.119 paf 406: // @postprocess[data]
1.248 paf 407: VMethodFrame frame(/*method->name, */ *junction, 0/*no parent*/);
1.233 paf 408: frame.set_self(main_class);
1.91 paf 409:
1.250 paf 410: frame.store_param(*body_value);
411: body_value=&execute_method(frame, *method).as_value();
1.91 paf 412: }
1.90 paf 413:
1.250 paf 414: VFile* body_file=body_value->as_vfile(
1.248 paf 415: String::L_UNSPECIFIED, &charsets);
1.41 paf 416:
1.183 paf 417: #ifdef RESOURCES_DEBUG
418: //measure:after postprocess
419: gettimeofday(&mt[3],NULL);
420: #endif
421:
1.45 paf 422: // OK. write out the result
1.248 paf 423: output_result(body_file, header_only, as_attachment);
1.183 paf 424:
425: #ifdef RESOURCES_DEBUG
426: //measure:after output_result
427: gettimeofday(&mt[9],NULL);
428: t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;
429:
430: double t[10];
431: for(int i=0;i<10;i++)
432: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
433: //measure:log2 compile,main,postprocess,output
1.248 paf 434: SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
435: request_info.uri,
1.183 paf 436: t[1]-t[0],
437: t[2]-t[1],
438: t[3]-t[2],
439: sql_connect_time,sql_request_time,
440: t[9]-t[3]
441: );
442: #endif
1.171 parser 443: } catch(const Exception& e) { // request handling problem
1.268 paf 444: try {
1.76 paf 445: // we're returning not result, but error explanation
1.269 paf 446:
447: Request::Exception_details details=get_details(e);
448: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 449:
450: // reset language to default
451: flang=fdefault_lang;
452:
453: // reset response
454: response.fields().clear();
455:
456: // this is what we'd return in $response:body
457: const String* body_string=0;
458:
459: // maybe we'd be lucky enough as to report an error
460: // in a gracefull way...
461: if(Value* value=main_class.get_element(
462: *new String(UNHANDLED_EXCEPTION_METHOD_NAME),
463: main_class,
464: false)) {
465: if(Junction* junction=value->get_junction()) {
466: if(const Method *method=junction->method) {
1.287 ! misha 467: // preparing to pass parameters to
! 468: // @unhandled_exception[exception;stack]
! 469: VMethodFrame frame(/*method->name, */ *junction, 0/*no caller*/);
! 470: frame.set_self(main_class);
! 471:
! 472: // $exception
! 473: frame.store_param(details.vhash);
! 474: // $stack[^table::create{name file lineno colno}]
! 475: Table::columns_type stack_trace_columns(new ArrayString);
! 476: *stack_trace_columns+=new String("name");
! 477: *stack_trace_columns+=new String("file");
! 478: *stack_trace_columns+=new String("lineno");
! 479: *stack_trace_columns+=new String("colno");
! 480: Table& stack_trace=*new Table(stack_trace_columns);
! 481: if(!exception_trace.is_empty()/*signed!*/)
! 482: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
! 483: Trace trace=exception_trace.get(i);
! 484: Table::element_type row(new ArrayString);
! 485:
! 486: *row+=trace.name(); // name column
! 487: Operation::Origin origin=trace.origin();
! 488: if(origin.file_no) {
! 489: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
! 490: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
! 491: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
! 492: }
! 493: stack_trace+=row;
! 494: }
! 495:
! 496: frame.store_param(*new VTable(&stack_trace));
! 497:
! 498: // future $response:body=
! 499: // execute ^unhandled_exception[exception;stack]
! 500: 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)
! 501: body_string=&execute_method(frame, *method).as_string();
1.233 paf 502: }
1.30 paf 503: }
1.258 paf 504: }
505:
506: if(!body_string) { // couldn't report an error beautifully?
507: // doing that ugly
508:
509: // future $response:content-type
510: response.fields().put(content_type_name,
511: new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
512: // future $response:body
1.269 paf 513: body_string=new String(exception_cstr);
1.258 paf 514: }
1.41 paf 515:
1.258 paf 516: VString body_vstring(*body_string);
517: VFile* body_file=body_vstring.as_vfile(String::L_UNSPECIFIED, &charsets);
1.90 paf 518:
1.273 paf 519: // conditionally log it
520: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
521: if(!vhandled || !vhandled->as_bool()) {
522: SAPI::log(sapi_info, "%s", exception_cstr);
523: }
524:
1.258 paf 525: // ERROR. write it out
526: output_result(body_file, header_only, false);
1.287 ! misha 527:
1.273 paf 528: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 529: Request::Exception_details details=get_details(e);
530: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 531: // unconditionally log the beast
532: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 533:
534: throw Exception(0,
535: 0,
536: "in %s",
537: exception_cstr);
1.268 paf 538: }
1.1 paf 539: }
540: }
541:
1.266 paf 542: uint Request::register_file(String::Body file_spec) {
1.248 paf 543: file_list+=file_spec;
544: return file_list.count()-1;
545: }
546:
547: void Request::use_file(VStateless_class& aclass,
548: const String& file_name, const String* main_alias,
549: bool ignore_class_path,
550: bool fail_on_read_problem,
551: bool fail_on_file_absence) {
1.73 paf 552: // cyclic dependence check
1.148 parser 553: if(used_files.get(file_name))
1.248 paf 554: return;
555: used_files.put(file_name, true);
1.73 paf 556:
1.248 paf 557: const String* file_spec;
1.153 parser 558: if(ignore_class_path) // ignore_class_path?
1.148 parser 559: file_spec=&file_name;
1.248 paf 560: else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.153 parser 561: file_spec=&absolute(file_name);
562: else {
563: file_spec=0;
1.248 paf 564: if(Value* element=main_class.get_element(class_path_name, main_class, false)) {
1.233 paf 565: if(element->is_string()) {
1.278 paf 566: file_spec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 567: } else if(Table *table=element->get_table()) {
1.248 paf 568: int size=table->count();
1.233 paf 569: for(int i=size; i--; ) {
1.248 paf 570: const String& path=*(*table->get(i))[0];
1.278 paf 571: if((file_spec=file_exist(absolute(path), file_name)))
1.233 paf 572: break; // found along class_path
573: }
574: } else
1.286 misha 575: throw Exception(PARSER_RUNTIME,
1.233 paf 576: 0,
577: "$" CLASS_PATH_NAME " must be string or table");
578: if(!file_spec)
1.286 misha 579: throw Exception(PARSER_RUNTIME,
1.233 paf 580: &file_name,
581: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
582: }
1.153 parser 583: if(!file_spec)
1.286 misha 584: throw Exception(PARSER_RUNTIME,
1.153 parser 585: &file_name,
1.203 paf 586: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 587: }
1.230 paf 588:
589: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
590: if(!entry_exists(*file_spec))
1.248 paf 591: return;
1.3 paf 592:
1.248 paf 593: if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem))
594: use_buf(aclass, source, main_alias, register_file(*file_spec));
1.16 paf 595: }
596:
1.208 paf 597:
1.248 paf 598: void Request::use_buf(VStateless_class& aclass,
599: const char* source, const String* main_alias,
1.266 paf 600: uint file_no,
601: int line_no_offset) {
1.233 paf 602: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 603: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 604: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 605: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 606:
1.5 paf 607: // compile loaded class
1.266 paf 608: VStateless_class& cclass=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 609:
1.233 paf 610: // locate and execute possible @conf[] static
1.248 paf 611: VString* vfilespec=
612: new VString(*new String(file_list[file_no], String::L_TAINTED));
613: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
614: conf_method_name, vfilespec,
615: false/*no string result needed*/);
616: if(executed.method)
617: configure_admin(cclass/*, executed.method->name*/);
1.208 paf 618:
619: // locate and execute possible @auto[] static
1.233 paf 620: execute_nonvirtual_method(cclass,
1.248 paf 621: auto_method_name, vfilespec,
622: false/*no result needed*/);
1.19 paf 623: }
624:
1.248 paf 625: const String& Request::relative(const char* apath, const String& relative_name) {
626: char *hpath=strdup(apath);
627: String& result=*new String;
628: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 629: result << hpath << "/";
1.248 paf 630: result << relative_name;
631: return result;
1.19 paf 632: }
633:
1.77 paf 634: const String& Request::absolute(const String& relative_name) {
1.217 paf 635: if(relative_name.first_char()=='/') {
1.248 paf 636: String& result=*new String(strdup(request_info.document_root));
1.104 paf 637: result << relative_name;
1.19 paf 638: return result;
639: } else
1.248 paf 640: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 641: #ifdef WIN32
642: || relative_name.pos(":")==1 // DRIVE:
643: || relative_name.starts_with("\\\\") // UNC1
644: || relative_name.starts_with("//") // UNC2
645: #endif
646: )
647: return relative_name;
648: else
1.248 paf 649: return relative(request_info.path_translated, relative_name);
1.1 paf 650: }
1.45 paf 651:
1.267 paf 652: #ifndef DOXYGEN
653: class Add_header_attribute_info
654: {
655: public:
656: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
657: Request& r;
658: bool add_last_modified;
659: };
660: #endif
1.248 paf 661: static void add_header_attribute(
662: HashStringValue::key_type aattribute,
663: HashStringValue::value_type ameaning,
1.267 paf 664: Add_header_attribute_info* info) {
1.184 paf 665: if(aattribute==BODY_NAME
1.244 paf 666: || aattribute==DOWNLOAD_NAME
1.184 paf 667: || aattribute==CHARSET_NAME)
1.101 paf 668: return;
669:
1.267 paf 670: const char* a=aattribute.cstr();
671: SAPI::add_header_attribute(info->r.sapi_info,
672: a,
1.248 paf 673: attributed_meaning_to_string(*ameaning, String::L_HTTP_HEADER, false).
674: cstr(String::L_UNSPECIFIED));
1.267 paf 675:
676: if(strcasecmp(a, "last-modified")==0)
677: info->add_last_modified = false;
678: }
679:
680: static void output_sole_piece(Request& r,
681: bool header_only,
682: VFile& body_file,
683: Value* body_file_content_type) {
684: // transcode text body when "text/*" or simple result
685: String::C output(body_file.value_ptr(), body_file.value_size());
686: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
687: output=Charset::transcode(output,
688: r.charsets.source(),
689: r.charsets.client());
690:
691: // prepare header: content-length
692: char content_length_cstr[MAX_NUMBER];
693: snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length);
694: SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr);
695:
696: // send header
697: SAPI::send_header(r.sapi_info);
698:
699: // send body
700: if(!header_only)
701: SAPI::send_body(r.sapi_info, output.str, output.length);
702: }
703:
704: #ifndef DOXYGEN
705: struct Range
706: {
707: size_t start;
708: size_t end;
709: };
710: #endif
711: static void parse_range(const String* s, Array<Range> &ar)
712: {
713: const char *p = s->cstr();
714: if(s->starts_with("bytes="))
715: p += 6;
716: Range r;
717: while(*p){
718: r.start = (size_t)-1;
719: r.end = (size_t)-1;
720: if(*p >= '0' && *p <= '9'){
721: r.start = atol(p);
722: while(*p>='0' && *p<='9') ++p;
723: }
724: if(*p++ != '-') break;
725: if(*p >= '0' && *p <= '9'){
726: r.end = atol(p);
727: while(*p>='0' && *p<='9') ++p;
728: }
729: if(*p == ',') ++p;
730: ar += r;
731: }
1.101 paf 732: }
1.267 paf 733:
734: static void output_pieces(Request& r,
735: bool header_only,
736: const String& filename,
737: size_t content_length,
738: Value& date,
739: bool add_last_modified)
740: {
1.270 paf 741: SAPI::add_header_attribute(r.sapi_info, "Accept-Ranges", "bytes");
742:
1.267 paf 743: const size_t BUFSIZE = 10*0x400;
744: char buf[BUFSIZE];
745: const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");
746: size_t offset=0;
747: size_t part_length=content_length;
748: if(range){
749: Array<Range> ar;
750: parse_range(new String(range), ar);
751: size_t count = ar.count();
752: if(count == 1){
753: Range &rg = ar.get_ref(0);
754: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
755: SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable");
756: return;
757: }
758: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
759: rg.start = content_length - rg.end;
760: rg.end = content_length;
761: offset += rg.start;
762: part_length = rg.end-rg.start;
763: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
764: rg.end = content_length-1;
765: offset += rg.start;
766: part_length -= rg.start;
767: }
768: if(part_length == 0){
769: SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content");
770: return;
771: }
772: SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content");
773: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
774: SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf);
775: }else if(count != 0){
776: SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented");
777: return;
778: }
779: }
780:
781:
782: snprintf(buf, BUFSIZE, "%u", part_length);
783: SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf);
784:
785: if(add_last_modified){
786: const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true);
787: SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr());
788: }
789: SAPI::send_header(r.sapi_info);
790:
791: const String& filespec=r.absolute(filename);
792:
793: size_t sent = 0;
794: if(!header_only){
795: size_t to_read = 0;
796: size_t size = 0;
797: do{
798: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
799: File_read_result read_result=file_read(r.charsets, filespec,
800: false /*as text*/, 0/*params*/, true/*fail on problem*/,
801: buf, offset, to_read);
802: to_read=read_result.length;
803: if(to_read == 0)
804: break;
805: offset += to_read;
806:
807: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
808: sent += size;
809: if(size != to_read)
810: break;
811: part_length -= to_read;
812: }while(part_length);
813: }
814: }
815:
1.248 paf 816: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 817: // header: cookies
1.248 paf 818: cookie.output_result(sapi_info);
1.51 paf 819:
1.267 paf 820: // may be specified
821: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 822:
823: // content-disposition
1.267 paf 824: Value* vfile_name=body_file->fields().get(name_name);
825: if(!vfile_name) {
826: vfile_name=body_file->fields().get(response_body_file_name);
1.274 paf 827: if(vfile_name)
828: {
829: const String& sfile_name=vfile_name->as_string();
1.267 paf 830:
1.274 paf 831: char* name_cstr=sfile_name.cstrm();
832: if(char *after_slash=rsplit(name_cstr, '\\'))
833: name_cstr=after_slash;
834: if(char *after_slash=rsplit(name_cstr, '/'))
835: name_cstr=after_slash;
836: vfile_name=new VString(*new String(name_cstr));
837: }
1.267 paf 838: }
839: if(vfile_name) {
840: const String& sfile_name=vfile_name->as_string();
841: if(sfile_name!=NONAME_DAT) {
1.283 misha 842: VHash& hash=*new VHash();
843: HashStringValue &h=hash.hash();
844: h.put(value_name, new VString( as_attachment ? content_disposition_value : content_disposition_inline ));
845:
846: h.put(content_disposition_filename_name, vfile_name);
847: response.fields().put(content_disposition_name, &hash);
1.267 paf 848:
849: if(!body_file_content_type)
850: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 851: }
1.267 paf 852: }
853:
854: // set content-type
855: if(body_file_content_type) {
856: // body file content type
857: response.fields().put(content_type_name, body_file_content_type);
858: } else {
859: // default content type
860: response.fields().put_dont_replace(content_type_name,
861: new VString(*new String(DEFAULT_CONTENT_TYPE)));
862: }
1.49 paf 863:
1.62 paf 864: // prepare header: $response:fields without :body
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:
1.223 paf 868: if(body_file_content_type)
1.248 paf 869: if(HashStringValue *hash=body_file_content_type->get_hash())
870: body_file_content_type=hash->get(value_name);
1.50 paf 871:
1.267 paf 872: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
873: const String& sresponse_body_file=vresponse_body_file->as_string();
874: size_t content_length=0;
875: time_t atime=0, mtime=0, ctime=0;
876: file_stat(absolute(sresponse_body_file),
877: content_length,
878: atime, mtime, ctime);
879:
880: VDate* vdate=0;
881: if(Value* v=body_file->fields().get("mdate")) {
882: if(Value* vdatep=v->as(VDATE_TYPE, false))
883: vdate=static_cast<VDate*>(vdatep);
884: else
1.286 misha 885: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 886: }
887: if(!vdate)
888: vdate=new VDate(mtime);
1.62 paf 889:
1.267 paf 890: output_pieces(*this, header_only,
891: sresponse_body_file,
892: content_length,
893: *vdate,
894: info.add_last_modified);
895: } else {
896: output_sole_piece(*this, header_only,
897: *body_file, body_file_content_type);
898: }
1.50 paf 899: }
1.104 paf 900:
1.248 paf 901: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 902: if(mime_types)
1.248 paf 903: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
904: String sext(++cext);
1.246 paf 905: Table::Action_options options;
1.248 paf 906: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))
907: if(const String* result=mime_types->item(1))
908: return *result;
1.104 paf 909: else
1.286 misha 910: throw Exception(PARSER_RUNTIME,
1.248 paf 911: 0,
1.212 paf 912: MIME_TYPES_NAME " table column elements must not be empty");
1.104 paf 913: }
1.248 paf 914:
915: return *new String("application/octet-stream");
916: }
917:
918: #ifdef XML
1.280 paf 919: xmlChar* Request::transcode(const String& s) {
1.248 paf 920: return charsets.source().transcode(s);
921: }
922:
1.280 paf 923: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 924: return charsets.source().transcode(s);
925: }
926:
1.280 paf 927: const String& Request::transcode(const xmlChar* s) {
1.248 paf 928: return charsets.source().transcode(s);
1.233 paf 929: }
1.248 paf 930: #endif
931:
932:
933: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
934: Trace result;
935: if(!is_empty()) {
936: result=bottom_value();
937: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 938: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 939: fbottom++;
940: } else if(result.name()==problem_source) // it is that same guy?
941: fbottom++; // throw away that trace
1.279 paf 942: else {
943: // stack top contains not us,
944: // leaving result intact
945: // it would help ^throw
946: }
1.248 paf 947: }
948:
949: return result;
950: }
951:
952: Request::Exception_details Request::get_details(const Exception& e) {
953: const String* problem_source=e.problem_source();
954: Trace trace=exception_trace.extract_origin(problem_source);
955:
956: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
957:
958: // $.type
959: if(const char* type=e.type(true))
960: hash.put(exception_type_part_name, new VString(*new String(type)));
961:
962: // $.source
963: if(problem_source) {
964: String& source=*new String;
965: source.append(*problem_source, String::L_TAINTED, true/*forced*/);
966:
967: hash.put(exception_source_part_name, new VString(source));
968: }
969:
970: // $.file lineno colno
971: if(trace) {
972: const Operation::Origin origin=trace.origin();
1.263 paf 973: hash.put(String::Body("file"),
1.248 paf 974: new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
1.263 paf 975: hash.put(String::Body("lineno"), new VInt(1+origin.line));
976: hash.put(String::Body("colno"), new VInt(1+origin.col));
1.248 paf 977: }
978:
979: // $.comment
980: if(const char* comment=e.comment(true))
981: hash.put(exception_comment_part_name,
982: new VString(*new String(comment, 0, true/*tainted*/)));
983:
984: // $.handled(0)
985: hash.put(exception_handled_part_name, new VBool(false));
1.233 paf 986:
1.248 paf 987: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 988: }
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