Annotation of parser3/src/main/pa_request.C, revision 1.347
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.329 moko 4: Copyright (c) 2001-2012 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:
1.347 ! moko 35: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.346 2015/09/22 23:38:59 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: 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"
1.309 misha 52: #define AUTOUSE_METHOD_NAME "autouse"
1.248 paf 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);
1.309 misha 61: const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 62:
1.248 paf 63: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
64: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
65: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
66: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
67:
68: // defines for statics
69:
70: #define CHARSETS_NAME "CHARSETS"
71: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 72: #define STRICT_VARS_NAME "STRICT-VARS"
1.248 paf 73: #define ORIGINS_MODE_NAME "ORIGINS"
74: #define CONF_METHOD_NAME "conf"
75: #define POST_PROCESS_METHOD_NAME "postprocess"
76: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 77: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 78:
1.344 moko 79: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
80: #define BODY_NAME_UPPER "BODY"
81:
1.248 paf 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);
1.330 moko 87: static const String strict_vars_name(STRICT_VARS_NAME);
1.248 paf 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 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:
1.344 moko 94: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
95: static const String body_name_upper(BODY_NAME_UPPER);
96:
97: // more static
98:
99: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
100: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
101: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
102: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
103:
1.248 paf 104: // defines
1.82 paf 105:
1.344 moko 106: #define CHARSET_NAME_UPPER "CHARSET"
107: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
108:
1.233 paf 109: // op.C
1.248 paf 110: VStateless_class& VClassMAIN_create();
1.123 paf 111:
1.157 parser 112: //
1.248 paf 113: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 114: String::Language adefault_lang):
1.248 paf 115: // private
116: anti_endless_execute_recoursion(0),
117:
118: // public
1.335 moko 119: allow_class_replace(false),
1.248 paf 120: method_frame(0),
121: rcontext(0),
122: wcontext(0),
123: flang(adefault_lang),
1.191 paf 124: fconnection(0),
1.307 misha 125: finterrupted(false),
126: fskip(SKIP_NOTHING),
127: fin_cycle(0),
1.248 paf 128:
129: // public
1.257 paf 130: request_info(arequest_info),
1.248 paf 131: sapi_info(asapi_info),
132: charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets
133:
134: main_class(VClassMAIN_create()),
1.260 paf 135: form(*new VForm(charsets, arequest_info)),
1.248 paf 136: mail(*new VMail),
137: response(*new VResponse(arequest_info, charsets)),
1.298 misha 138: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 139: console(*new VConsole),
1.248 paf 140:
141: // private
142: configure_admin_done(false),
143:
144: // private defaults
145: fdefault_lang(adefault_lang),
146: // private mime types
147: mime_types(0)
1.157 parser 148: {
1.261 paf 149: pa_register_thread_request(*this);
150:
1.248 paf 151: // file_no=0 => unknown
1.347 ! moko 152: file_list+="UNKNOWN";
! 153: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 154:
1.178 paf 155: // maybe expire old caches
1.264 paf 156: cache_managers->maybe_expire();
1.178 paf 157:
1.157 parser 158: /// directly used
1.233 paf 159: // MAIN class, operators
1.235 paf 160: classes().put(main_class.name(), &main_class);
1.157 parser 161: // classes:
162: // table, file, random, mail, image, ...
1.248 paf 163: methoded_array().register_directly_used(*this);
1.157 parser 164:
165: /// methodless
166: // env class
1.347 ! moko 167: classes().put(ENV_CLASS_NAME, new VEnv(asapi_info));
1.175 paf 168: // status class
1.347 ! moko 169: classes().put(STATUS_CLASS_NAME, new VStatus());
1.157 parser 170: // request class
1.347 ! moko 171: classes().put(REQUEST_CLASS_NAME, new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 172: // cookie class
1.347 ! moko 173: classes().put(COOKIE_CLASS_NAME, &cookie);
1.253 paf 174: // console class
1.347 ! moko 175: classes().put(CONSOLE_CLASS_NAME, &console);
1.157 parser 176: /// methoded
177: // response class
1.248 paf 178: classes().put(response.get_class()->name(), &response);
1.157 parser 179:
180: /// bases used
181: // form class
1.248 paf 182: classes().put(form.get_class()->base_class()->name(), &form);
1.213 paf 183: // mail class
1.248 paf 184: classes().put(mail.get_class()->base_class()->name(), &mail);
1.157 parser 185: // math class
1.248 paf 186: {
187: Value& math=*new VMath;
188: classes().put(math.get_class()->base_class()->name(), &math);
189: }
190: // memory class
191: {
192: Value& memory=*new VMemory;
193: classes().put(memory.get_class()->base_class()->name(), &memory);
194: }
1.117 paf 195: }
1.192 paf 196:
197: Request::~Request() {
198: #ifdef XML
199: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 200: if(const char* xml_generic_errors=xmlGenericErrors()) {
201: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 202: pa_free((void *)xml_generic_errors);
1.192 paf 203: }
204: #endif
205: }
1.236 paf 206:
1.248 paf 207: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 208:
1.309 misha 209: Value* Request::get_class(const String& name){
210: Value* result=classes().get(name);
1.313 misha 211: if(!result)
1.309 misha 212: if(Value* value=main_class.get_element(autouse_method_name))
213: if(Junction* junction=value->get_junction())
214: if(const Method *method=junction->method) {
215: Value *vname=new VString(name);
1.322 moko 216: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.309 misha 217:
218: frame.store_params(&vname, 1);
219: // we don't need the result
1.323 moko 220: execute_method(frame);
1.309 misha 221:
222: result=classes().get(name);
223: }
1.313 misha 224:
1.309 misha 225: return result;
226: }
227:
1.248 paf 228: static void load_charset(HashStringValue::key_type akey,
229: HashStringValue::value_type avalue,
230: Request_charsets* charsets) {
1.249 paf 231: const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
1.248 paf 232: ::charsets.load_charset(*charsets, NAME, avalue->as_string());
1.208 paf 233: }
1.248 paf 234: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 235: if(configure_admin_done)
1.286 misha 236: throw Exception(PARSER_RUNTIME,
1.248 paf 237: 0,
1.208 paf 238: "parser already configured");
239: configure_admin_done=true;
240:
1.227 paf 241: // charsets must only be specified in method_frame config
1.208 paf 242: // so that users would not interfere
243:
244: /* $MAIN:CHARSETS[
245: $.charsetname1[/full/path/to/charset/file.cfg]
246: ...
247: ]
248: */
1.308 misha 249: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 250: if(!vcharsets->is_string()) {
1.248 paf 251: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 252: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 253: else
1.286 misha 254: throw Exception(PARSER_RUNTIME,
1.240 paf 255: 0,
256: "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 257: }
1.208 paf 258: }
259:
1.330 moko 260: #ifdef STRICT_VARS
1.332 moko 261: VVoid::strict_vars=false;
1.330 moko 262: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
263: if(strict_vars->is_bool())
264: VVoid::strict_vars=strict_vars->as_bool();
265: else
266: throw Exception(PARSER_RUNTIME,
267: 0,
268: "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
269: }
270: #endif
271:
1.227 paf 272: // configure method_frame options
1.208 paf 273: // until someone with less privileges have overriden them
1.248 paf 274: methoded_array().configure_admin(*this);
1.208 paf 275: }
1.150 parser 276:
1.269 paf 277: const char* Request::get_exception_cstr(
278: const Exception& e,
279: Request::Exception_details& details) {
280: #define PA_URI_FORMAT "%s: "
281: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
282: #define PA_SOURCE_FORMAT "'%s' "
283: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
284: char* result=new(PointerFreeGC) char[MAX_STRING];
285:
286: if(details.problem_source) { // do we know the guy?
287: if(details.trace) { // do whe know where he came from?
288: Operation::Origin origin=details.trace.origin();
289: snprintf(result, MAX_STRING,
290: PA_URI_FORMAT
291: PA_ORIGIN_FILE_POS_FORMAT
292: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
293: request_info.uri,
294: file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,
295: details.problem_source->cstr(),
296: e.comment(), e.type()
297: );
298: } else
299: snprintf(result, MAX_STRING,
300: PA_URI_FORMAT
301: PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
302: request_info.uri,
303: details.problem_source->cstr(),
304: e.comment(), e.type()
305: );
306: } else
307: snprintf(result, MAX_STRING,
308: PA_URI_FORMAT
309: PA_COMMENT_TYPE_FORMAT,
310: request_info.uri,
311: e.comment(), e.type()
312: );
313:
314: return result;
315: }
1.272 paf 316:
317: void Request::configure() {
318: // configure admin options if not configured yet
319: if(!configure_admin_done)
320: configure_admin(main_class);
321:
322: // configure not-admin=user options
323: methoded_array().configure_user(*this);
324:
325: // $MAIN:MIME-TYPES
1.308 misha 326: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 327: if(Table *table=element->get_table())
328: mime_types=table;
329: }
1.64 paf 330: /**
331: load MAIN class, execute @main.
332: MAIN class consists of all the auto.p files we'd manage to find
333: plus
334: the file user requested us to process
335: all located classes become children of one another,
336: composing class we name 'MAIN'
1.180 paf 337:
338: @test log stack trace
339:
1.64 paf 340: */
1.248 paf 341: void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {
1.169 parser 342: try {
1.211 paf 343: // loading config
344: if(config_filespec) {
1.248 paf 345: const String& filespec=*new String(config_filespec);
1.318 misha 346: use_file_directly(main_class,
347: filespec,
1.248 paf 348: config_fail_on_read_problem,
349: true /*file must exist if 'fail on read problem' not set*/);
1.29 paf 350: }
1.8 paf 351:
1.338 moko 352: // filling mail received
353: mail.fill_received(*this);
354:
1.72 paf 355: // loading auto.p files from document_root/..
356: // to the one beside requested file.
357: // all assigned bases from upper dir
358: {
1.248 paf 359: const char* after=request_info.path_translated;
360: size_t drlen=strlen(request_info.document_root);
361: if(memcmp(after, request_info.document_root, drlen)==0) {
1.115 paf 362: after+=drlen;
363: if(after[-1]=='/')
364: --after;
365: }
366:
1.248 paf 367: while(const char* before=strchr(after, '/')) {
368: String& sfile_spec=*new String;
369: if(after!=request_info.path_translated) {
370: sfile_spec.append_strdup(
371: request_info.path_translated, before-request_info.path_translated,
372: String::L_CLEAN);
1.152 parser 373: sfile_spec << "/" AUTO_FILE_NAME;
374:
1.318 misha 375: use_file_directly(main_class,
1.248 paf 376: sfile_spec,
377: true /*fail on read problem*/,
378: false /*but ignore absence, sole user*/);
1.115 paf 379: }
1.317 misha 380: for(after=before+1;*after=='/';after++);
1.72 paf 381: }
382: }
1.34 paf 383:
1.272 paf 384: try {
385: // compile requested file
386: String& spath_translated=*new String;
387: spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED);
1.318 misha 388: use_file_directly(main_class, spath_translated);
1.272 paf 389:
390: configure();
391: } catch(...) {
392: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
393: rethrow;
394: }
1.25 paf 395:
396: // execute @main[]
1.248 paf 397: const String* body_string=execute_virtual_method(main_class, main_method_name);
1.41 paf 398: if(!body_string)
1.286 misha 399: throw Exception(PARSER_RUNTIME,
1.248 paf 400: 0,
1.340 moko 401: "'" MAIN_METHOD_NAME "' method not found");
1.79 paf 402:
1.250 paf 403: // extract response body
1.344 moko 404: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 405: bool as_attachment=body_value!=0;
406: if(!body_value)
1.344 moko 407: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 408: if(!body_value)
409: body_value=new VString(*body_string); // just result of ^main[]
410:
1.119 paf 411: // @postprocess
1.308 misha 412: if(Value* value=main_class.get_element(post_process_method_name))
1.248 paf 413: if(Junction* junction=value->get_junction())
1.91 paf 414: if(const Method *method=junction->method) {
415: // preparing to pass parameters to
1.119 paf 416: // @postprocess[data]
1.322 moko 417: VMethodFrame frame(*method, 0 /*no parent*/, main_class);
1.91 paf 418:
1.300 misha 419: frame.store_params(&body_value, 1);
1.323 moko 420: execute_method(frame);
421:
422: body_value=&frame.result().as_value();
1.91 paf 423: }
1.90 paf 424:
1.303 misha 425: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 426:
1.45 paf 427: // OK. write out the result
1.248 paf 428: output_result(body_file, header_only, as_attachment);
1.183 paf 429:
1.171 parser 430: } catch(const Exception& e) { // request handling problem
1.268 paf 431: try {
1.76 paf 432: // we're returning not result, but error explanation
1.269 paf 433:
434: Request::Exception_details details=get_details(e);
435: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 436:
437: // reset language to default
438: flang=fdefault_lang;
439:
440: // reset response
441: response.fields().clear();
442:
443: // this is what we'd return in $response:body
444: const String* body_string=0;
445:
446: // maybe we'd be lucky enough as to report an error
447: // in a gracefull way...
1.308 misha 448: if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
1.258 paf 449: if(Junction* junction=value->get_junction()) {
450: if(const Method *method=junction->method) {
1.287 misha 451: // preparing to pass parameters to
452: // @unhandled_exception[exception;stack]
453:
454: // $stack[^table::create{name file lineno colno}]
455: Table::columns_type stack_trace_columns(new ArrayString);
456: *stack_trace_columns+=new String("name");
457: *stack_trace_columns+=new String("file");
458: *stack_trace_columns+=new String("lineno");
459: *stack_trace_columns+=new String("colno");
460: Table& stack_trace=*new Table(stack_trace_columns);
461: if(!exception_trace.is_empty()/*signed!*/)
462: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
463: Trace trace=exception_trace.get(i);
464: Table::element_type row(new ArrayString);
465:
466: *row+=trace.name(); // name column
467: Operation::Origin origin=trace.origin();
468: if(origin.file_no) {
469: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
470: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
471: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
472: }
473: stack_trace+=row;
474: }
475:
1.323 moko 476: // future $response:body=
477: // execute ^unhandled_exception[exception;stack]
478: 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)
479:
480: VMethodFrame frame(*method, 0 /*no caller*/, main_class);
1.300 misha 481: Value *params[]={&details.vhash, new VTable(&stack_trace)};
1.323 moko 482:
1.300 misha 483: frame.store_params(params, 2);
1.323 moko 484: execute_method(frame);
1.287 misha 485:
1.323 moko 486: body_string=&frame.result().as_string();
1.233 paf 487: }
1.30 paf 488: }
1.258 paf 489: }
490:
491: if(!body_string) { // couldn't report an error beautifully?
492: // doing that ugly
493:
494: // future $response:content-type
1.344 moko 495: response.fields().put(content_type_name_upper, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));
1.258 paf 496: // future $response:body
1.269 paf 497: body_string=new String(exception_cstr);
1.258 paf 498: }
1.41 paf 499:
1.258 paf 500: VString body_vstring(*body_string);
1.303 misha 501: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
1.90 paf 502:
1.273 paf 503: // conditionally log it
504: Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
505: if(!vhandled || !vhandled->as_bool()) {
506: SAPI::log(sapi_info, "%s", exception_cstr);
507: }
508:
1.258 paf 509: // ERROR. write it out
510: output_result(body_file, header_only, false);
1.287 misha 511:
1.273 paf 512: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 513: Request::Exception_details details=get_details(e);
514: const char* exception_cstr=get_exception_cstr(e, details);
1.273 paf 515: // unconditionally log the beast
516: SAPI::log(sapi_info, "%s", exception_cstr);
1.269 paf 517:
518: throw Exception(0,
519: 0,
520: "in %s",
521: exception_cstr);
1.268 paf 522: }
1.1 paf 523: }
524: }
525:
1.266 paf 526: uint Request::register_file(String::Body file_spec) {
1.248 paf 527: file_list+=file_spec;
528: return file_list.count()-1;
529: }
530:
1.318 misha 531: void Request::use_file_directly(VStateless_class& aclass,
532: const String& file_spec,
533: bool fail_on_read_problem,
534: bool fail_on_file_absence) {
535:
1.73 paf 536: // cyclic dependence check
1.318 misha 537: if(used_files.get(file_spec))
1.248 paf 538: return;
1.318 misha 539: used_files.put(file_spec, true);
540:
541: if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for
542: if(!entry_exists(file_spec))
543: return;
544:
545: if(const char* source=file_read_text(charsets, file_spec, fail_on_read_problem))
546: use_buf(aclass, source, 0, register_file(file_spec));
547: }
548:
549:
550: void Request::use_file(VStateless_class& aclass,
551: const String& file_name,
552: const String* use_filespec/*absolute*/) {
1.73 paf 553:
1.326 misha 554: if(file_name.is_empty())
555: throw Exception(PARSER_RUNTIME,
556: 0,
557: "usage failed - no filename was specified");
558:
1.318 misha 559: const String* filespec=0;
560:
561: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
562: filespec=&absolute(file_name);
563: else if(use_filespec){ // search in current dir first
1.331 misha 564: size_t last_slash_pos=use_filespec->strrpbrk("/");
565: if(last_slash_pos!=STRING_NOT_FOUND)
566: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 567: }
568:
569: if(!filespec){
570: // prevent multiple scan CLASS_PATH for searching one file
571: if(searched_along_class_path.get(file_name))
572: return;
573: searched_along_class_path.put(file_name, true);
1.308 misha 574: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 575: if(element->is_string()) {
1.318 misha 576: filespec=file_exist(absolute(element->as_string()), file_name); // found at class_path?
1.233 paf 577: } else if(Table *table=element->get_table()) {
1.318 misha 578: for(size_t i=table->count(); i--; ) {
1.248 paf 579: const String& path=*(*table->get(i))[0];
1.318 misha 580: if(filespec=file_exist(absolute(path), file_name))
1.233 paf 581: break; // found along class_path
582: }
583: } else
1.286 misha 584: throw Exception(PARSER_RUNTIME,
1.233 paf 585: 0,
586: "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 587: if(!filespec)
1.286 misha 588: throw Exception(PARSER_RUNTIME,
1.233 paf 589: &file_name,
590: "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 591: } else
1.286 misha 592: throw Exception(PARSER_RUNTIME,
1.153 parser 593: &file_name,
1.203 paf 594: "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 595: }
1.230 paf 596:
1.318 misha 597: use_file_directly(aclass, *filespec);
1.16 paf 598: }
599:
1.208 paf 600:
1.248 paf 601: void Request::use_buf(VStateless_class& aclass,
1.318 misha 602: const char* source, const String* main_alias,
603: uint file_no,
604: int line_no_offset) {
1.233 paf 605: // temporary zero @conf so to maybe-replace it in compiled code
1.248 paf 606: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.233 paf 607: // temporary zero @auto so to maybe-replace it in compiled code
1.248 paf 608: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 609:
1.295 misha 610: // compile loaded classes
611: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 612:
1.248 paf 613: VString* vfilespec=
614: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 615:
616: for(size_t i=0; i<cclasses.count(); i++){
617: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 618:
619: // locate and execute possible @conf[] static
1.295 misha 620: Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,
621: conf_method_name, vfilespec,
622: false/*no string result needed*/);
623: if(executed.method)
624: configure_admin(cclass/*, executed.method->name*/);
625:
626: // locate and execute possible @auto[] static
627: execute_nonvirtual_method(cclass,
628: auto_method_name, vfilespec,
629: false/*no result needed*/);
1.336 moko 630:
631: cclass.enable_default_setter();
1.295 misha 632: }
1.19 paf 633: }
634:
1.248 paf 635: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 636: char *hpath=pa_strdup(apath);
1.248 paf 637: String& result=*new String;
638: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 639: result << hpath << "/";
1.248 paf 640: result << relative_name;
641: return result;
1.19 paf 642: }
643:
1.77 paf 644: const String& Request::absolute(const String& relative_name) {
1.217 paf 645: if(relative_name.first_char()=='/') {
1.341 moko 646: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 647: result << relative_name;
1.19 paf 648: return result;
649: } else
1.248 paf 650: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 651: #ifdef WIN32
652: || relative_name.pos(":")==1 // DRIVE:
653: || relative_name.starts_with("\\\\") // UNC1
654: || relative_name.starts_with("//") // UNC2
655: #endif
656: )
657: return relative_name;
658: else
1.248 paf 659: return relative(request_info.path_translated, relative_name);
1.1 paf 660: }
1.45 paf 661:
1.267 paf 662: #ifndef DOXYGEN
663: class Add_header_attribute_info
664: {
665: public:
666: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
667: Request& r;
668: bool add_last_modified;
669: };
670: #endif
1.344 moko 671: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
672: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 673: return;
1.290 misha 674:
1.345 moko 675: if(name==LAST_MODIFIED_NAME_UPPER)
676: info->add_last_modified=false;
677:
1.316 misha 678: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 679:
1.267 paf 680: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 681: aname,
1.316 misha 682: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 683: );
1.267 paf 684: }
685:
686: static void output_sole_piece(Request& r,
687: bool header_only,
688: VFile& body_file,
689: Value* body_file_content_type) {
690: // transcode text body when "text/*" or simple result
691: String::C output(body_file.value_ptr(), body_file.value_size());
692: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
693: output=Charset::transcode(output,
694: r.charsets.source(),
695: r.charsets.client());
696:
1.311 misha 697: // prepare header: Content-Length
698: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 699:
700: // send header
701: SAPI::send_header(r.sapi_info);
702:
703: // send body
704: if(!header_only)
705: SAPI::send_body(r.sapi_info, output.str, output.length);
706: }
707:
708: #ifndef DOXYGEN
709: struct Range
710: {
711: size_t start;
712: size_t end;
713: };
714: #endif
1.313 misha 715: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 716: const char *p = s->cstr();
717: if(s->starts_with("bytes="))
718: p += 6;
719: Range r;
720: while(*p){
721: r.start = (size_t)-1;
722: r.end = (size_t)-1;
723: if(*p >= '0' && *p <= '9'){
724: r.start = atol(p);
725: while(*p>='0' && *p<='9') ++p;
726: }
727: if(*p++ != '-') break;
728: if(*p >= '0' && *p <= '9'){
729: r.end = atol(p);
730: while(*p>='0' && *p<='9') ++p;
731: }
732: if(*p == ',') ++p;
733: ar += r;
734: }
1.101 paf 735: }
1.267 paf 736:
737: static void output_pieces(Request& r,
738: bool header_only,
739: const String& filename,
740: size_t content_length,
741: Value& date,
742: bool add_last_modified)
743: {
1.315 misha 744: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 745:
1.267 paf 746: const size_t BUFSIZE = 10*0x400;
747: char buf[BUFSIZE];
1.339 moko 748: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 749: size_t offset=0;
750: size_t part_length=content_length;
751: if(range){
752: Array<Range> ar;
753: parse_range(new String(range), ar);
754: size_t count = ar.count();
755: if(count == 1){
756: Range &rg = ar.get_ref(0);
757: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 758: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 759: return;
760: }
761: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
762: rg.start = content_length - rg.end;
763: rg.end = content_length;
764: offset += rg.start;
765: part_length = rg.end-rg.start;
766: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
767: rg.end = content_length-1;
768: offset += rg.start;
769: part_length -= rg.start;
770: }
771: if(part_length == 0){
1.311 misha 772: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 773: return;
774: }
1.311 misha 775: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 776: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 777: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 778: }else if(count != 0){
1.311 misha 779: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 780: return;
781: }
782: }
783:
784:
1.311 misha 785: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 786:
1.314 misha 787: if(add_last_modified)
1.315 misha 788: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 789:
1.267 paf 790: SAPI::send_header(r.sapi_info);
791:
792: const String& filespec=r.absolute(filename);
793:
794: size_t sent = 0;
795: if(!header_only){
796: size_t to_read = 0;
797: size_t size = 0;
798: do{
799: to_read = part_length<BUFSIZE?part_length:BUFSIZE;
800: File_read_result read_result=file_read(r.charsets, filespec,
801: false /*as text*/, 0/*params*/, true/*fail on problem*/,
802: buf, offset, to_read);
803: to_read=read_result.length;
804: if(to_read == 0)
805: break;
806: offset += to_read;
807:
808: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
809: sent += size;
810: if(size != to_read)
811: break;
812: part_length -= to_read;
813: }while(part_length);
814: }
815: }
816:
1.248 paf 817: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 818: // header: cookies
1.248 paf 819: cookie.output_result(sapi_info);
1.51 paf 820:
1.314 misha 821: // _file_ content-type might be specified
1.267 paf 822: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 823:
1.314 misha 824: // Content-Disposition
1.267 paf 825: Value* vfile_name=body_file->fields().get(name_name);
826: if(!vfile_name) {
827: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 828: if(vfile_name) {
829: char* name_cstr=vfile_name->as_string().cstrm();
1.274 paf 830: if(char *after_slash=rsplit(name_cstr, '\\'))
831: name_cstr=after_slash;
832: if(char *after_slash=rsplit(name_cstr, '/'))
833: name_cstr=after_slash;
1.327 misha 834: vfile_name=new VString(*new String(name_cstr));
1.274 paf 835: }
1.267 paf 836: }
837: if(vfile_name) {
838: const String& sfile_name=vfile_name->as_string();
839: if(sfile_name!=NONAME_DAT) {
1.283 misha 840: VHash& hash=*new VHash();
841: HashStringValue &h=hash.hash();
1.288 misha 842: h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
1.343 moko 843: h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
1.283 misha 844:
1.344 moko 845: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 846:
847: if(!body_file_content_type)
848: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 849: }
1.267 paf 850: }
851:
1.312 misha 852: // set Content-Type
1.314 misha 853: if(body_file_content_type) {
854: // body file content type
1.344 moko 855: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 856: } else {
857: // default content type
1.344 moko 858: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 859: }
1.312 misha 860:
1.314 misha 861: // prepare header: $response:fields without :body, :download and :charset
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:
1.267 paf 865: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 866: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 867: const String& sresponse_body_file=vresponse_body_file->as_string();
868: size_t content_length=0;
869: time_t atime=0, mtime=0, ctime=0;
870: file_stat(absolute(sresponse_body_file),
871: content_length,
872: atime, mtime, ctime);
873:
874: VDate* vdate=0;
875: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 876: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 877: vdate=static_cast<VDate*>(vdatep);
878: else
1.286 misha 879: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 880: }
881: if(!vdate)
1.346 moko 882: vdate=new VDate((pa_time_t)mtime);
1.62 paf 883:
1.267 paf 884: output_pieces(*this, header_only,
885: sresponse_body_file,
886: content_length,
887: *vdate,
888: info.add_last_modified);
889: } else {
1.314 misha 890: if(body_file_content_type)
891: if(HashStringValue *hash=body_file_content_type->get_hash())
892: body_file_content_type=hash->get(value_name);
893:
1.267 paf 894: output_sole_piece(*this, header_only,
895: *body_file, body_file_content_type);
896: }
1.50 paf 897: }
1.104 paf 898:
1.328 misha 899: const String& Request::mime_type_of(const String* file_name) {
900: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
901: }
902:
1.248 paf 903: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 904: if(mime_types)
1.248 paf 905: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
906: String sext(++cext);
1.246 paf 907: Table::Action_options options;
1.342 moko 908: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 909: if(const String* result=mime_types->item(1))
910: return *result;
1.104 paf 911: else
1.286 misha 912: throw Exception(PARSER_RUNTIME,
1.248 paf 913: 0,
1.212 paf 914: MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 915: }
1.104 paf 916: }
1.248 paf 917:
918: return *new String("application/octet-stream");
919: }
920:
1.318 misha 921: const String* Request::get_used_filename(uint file_no){
922: if(file_no < file_list.count())
923: return new String(file_list[file_no], String::L_TAINTED);
924: return 0;
925: }
926:
1.248 paf 927: #ifdef XML
1.280 paf 928: xmlChar* Request::transcode(const String& s) {
1.248 paf 929: return charsets.source().transcode(s);
930: }
931:
1.280 paf 932: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 933: return charsets.source().transcode(s);
934: }
935:
1.280 paf 936: const String& Request::transcode(const xmlChar* s) {
1.248 paf 937: return charsets.source().transcode(s);
1.233 paf 938: }
1.248 paf 939: #endif
940:
941:
942: const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
943: Trace result;
944: if(!is_empty()) {
945: result=bottom_value();
946: if(!problem_source) { // we don't know who trigged the bug?
1.279 paf 947: problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
1.248 paf 948: fbottom++;
949: } else if(result.name()==problem_source) // it is that same guy?
950: fbottom++; // throw away that trace
1.279 paf 951: else {
952: // stack top contains not us,
953: // leaving result intact
954: // it would help ^throw
955: }
1.248 paf 956: }
957:
958: return result;
959: }
960:
961: Request::Exception_details Request::get_details(const Exception& e) {
962: const String* problem_source=e.problem_source();
963: Trace trace=exception_trace.extract_origin(problem_source);
964:
965: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
966:
967: // $.type
968: if(const char* type=e.type(true))
969: hash.put(exception_type_part_name, new VString(*new String(type)));
970:
971: // $.source
972: if(problem_source) {
1.306 misha 973: String& source=*new String(*problem_source, String::L_TAINTED);
1.248 paf 974: hash.put(exception_source_part_name, new VString(source));
975: }
976:
977: // $.file lineno colno
978: if(trace) {
979: const Operation::Origin origin=trace.origin();
1.347 ! moko 980: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
! 981: hash.put("lineno", new VInt(1+origin.line));
! 982: hash.put("colno", new VInt(1+origin.col));
1.248 paf 983: }
984:
985: // $.comment
986: if(const char* comment=e.comment(true))
987: hash.put(exception_comment_part_name,
1.302 misha 988: new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 989:
990: // $.handled(0)
1.299 misha 991: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 992:
1.248 paf 993: return Request::Exception_details(trace, problem_source, vhash);
1.133 parser 994: }
1.337 moko 995:
996: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
997: frequest(arequest),
998: fwhere(awhere),
999: fname(aname),
1000: saved(awhere.get_element(aname))
1001: {
1002: Junction* junction;
1003: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1004: saved=0;
1005: frequest.put_element(fwhere, aname, awhat);
1006: }
1007:
1008: Temp_value_element::~Temp_value_element() {
1009: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1010: }
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