Annotation of parser3/src/main/pa_request.C, revision 1.393
1.54 paf 1: /** @file
1.55 paf 2: Parser: request class main part. @see compile.C and execute.C.
3:
1.374 moko 4: Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)
1.194 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.218 paf 6: */
1.55 paf 7:
1.69 paf 8: #include "pa_sapi.h"
1.53 paf 9: #include "pa_common.h"
1.372 moko 10: #include "pa_os.h"
1.1 paf 11: #include "pa_request.h"
1.3 paf 12: #include "pa_wwrapper.h"
13: #include "pa_vclass.h"
1.31 paf 14: #include "pa_globals.h"
1.30 paf 15: #include "pa_vint.h"
1.297 misha 16: #include "pa_vmethod_frame.h"
1.32 paf 17: #include "pa_types.h"
1.248 paf 18: #include "pa_venv.h"
19: #include "pa_vmath.h"
20: #include "pa_vstatus.h"
21: #include "pa_vrequest.h"
1.78 paf 22: #include "pa_vtable.h"
1.90 paf 23: #include "pa_vfile.h"
1.147 parser 24: #include "pa_dictionary.h"
1.208 paf 25: #include "pa_charset.h"
1.186 paf 26: #include "pa_charsets.h"
1.248 paf 27: #include "pa_cache_managers.h"
28: #include "pa_vmail.h"
29: #include "pa_vform.h"
30: #include "pa_vcookie.h"
31: #include "pa_vresponse.h"
32: #include "pa_vmemory.h"
1.253 paf 33: #include "pa_vconsole.h"
1.267 paf 34: #include "pa_vdate.h"
1.159 parser 35:
1.393 ! moko 36: volatile const char * IDENT_PA_REQUEST_C="$Id: pa_request.C,v 1.392 2020/11/21 23:14:43 moko Exp $" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;
1.329 moko 37:
1.248 paf 38: // consts
39:
1.269 paf 40: #define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"
1.207 paf 41:
1.82 paf 42: /// content type of response when no $MAIN:defaults.content-type defined
1.248 paf 43: const char* DEFAULT_CONTENT_TYPE="text/html";
44:
1.369 moko 45: const uint LOOP_LIMIT=20000;
1.361 moko 46: const uint EXECUTE_RECOURSION_LIMIT=1000;
1.390 moko 47: const uint HTTPD_TIMEOUT=4;
1.369 moko 48: const size_t FILE_SIZE_LIMIT=512*1024*1024;
1.361 moko 49:
1.248 paf 50: // defines for globals
51:
52: #define MAIN_METHOD_NAME "main"
53: #define AUTO_METHOD_NAME "auto"
1.364 moko 54: #define USE_METHOD_NAME "use"
1.309 misha 55: #define AUTOUSE_METHOD_NAME "autouse"
1.364 moko 56:
1.248 paf 57: #define EXCEPTION_TYPE_PART_NAME "type"
58: #define EXCEPTION_SOURCE_PART_NAME "source"
59: #define EXCEPTION_COMMENT_PART_NAME "comment"
60:
1.364 moko 61: #define ORIGIN_KEY "origin"
62:
1.248 paf 63: // globals
64:
65: const String main_method_name(MAIN_METHOD_NAME);
66: const String auto_method_name(AUTO_METHOD_NAME);
1.364 moko 67: static const String use_method_name(USE_METHOD_NAME);
68: static const String autouse_method_name(AUTOUSE_METHOD_NAME);
1.311 misha 69:
1.248 paf 70: const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
71: const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
72: const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
73: const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);
74:
1.364 moko 75: static const String origin_key(ORIGIN_KEY);
76:
1.369 moko 77: int pa_loop_limit=LOOP_LIMIT;
1.361 moko 78: int pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.390 moko 79: int pa_httpd_timeout=HTTPD_TIMEOUT;
1.369 moko 80: size_t pa_file_size_limit=FILE_SIZE_LIMIT;
1.361 moko 81:
1.248 paf 82: // defines for statics
83:
84: #define CHARSETS_NAME "CHARSETS"
85: #define MIME_TYPES_NAME "MIME-TYPES"
1.330 moko 86: #define STRICT_VARS_NAME "STRICT-VARS"
1.357 moko 87: #define PROTOTYPE_NAME "OBJECT-PROTOTYPE"
1.362 moko 88: #define LIMITS_NAME "LIMITS"
1.369 moko 89: #define LOOP_LIMIT_NAME "max_loop"
1.362 moko 90: #define RECOURSION_LIMIT_NAME "max_recoursion"
1.390 moko 91: #define HTTPD_TIMEOUT_NAME "httpd_timeout"
1.369 moko 92: #define FILE_SIZE_LIMIT_NAME "max_file_size"
1.373 moko 93: #define LOCK_WAIT_TIMEOUT_NAME "lock_wait_timeout"
1.248 paf 94: #define CONF_METHOD_NAME "conf"
95: #define POST_PROCESS_METHOD_NAME "postprocess"
96: #define CLASS_PATH_NAME "CLASS_PATH"
1.277 paf 97: #define RESPONSE_BODY_FILE_NAME "file"
1.248 paf 98:
1.344 moko 99: #define DOWNLOAD_NAME_UPPER "DOWNLOAD"
100: #define BODY_NAME_UPPER "BODY"
101:
1.248 paf 102: // statics
103:
104: static const String charsets_name(CHARSETS_NAME);
105: static const String main_class_name(MAIN_CLASS_NAME);
106: static const String mime_types_name(MIME_TYPES_NAME);
1.330 moko 107: static const String strict_vars_name(STRICT_VARS_NAME);
1.357 moko 108: static const String prototype_name(PROTOTYPE_NAME);
1.362 moko 109: static const String limits_name(LIMITS_NAME);
1.369 moko 110: static const String loop_limit_name(LOOP_LIMIT_NAME);
1.361 moko 111: static const String recoursion_limit_name(RECOURSION_LIMIT_NAME);
1.390 moko 112: static const String httpd_timeout_name(HTTPD_TIMEOUT_NAME);
1.369 moko 113: static const String file_size_limit_name(FILE_SIZE_LIMIT_NAME);
1.373 moko 114: static const String lock_wait_timeout_name(LOCK_WAIT_TIMEOUT_NAME);
1.361 moko 115:
1.248 paf 116: static const String conf_method_name(CONF_METHOD_NAME);
117: static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
118: static const String class_path_name(CLASS_PATH_NAME);
1.277 paf 119: static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);
1.248 paf 120:
1.344 moko 121: static const String download_name_upper(DOWNLOAD_NAME_UPPER);
122: static const String body_name_upper(BODY_NAME_UPPER);
123:
124: // more static
125:
126: static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
127: static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
1.392 moko 128: static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
1.344 moko 129: static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);
130:
1.248 paf 131: // defines
1.82 paf 132:
1.344 moko 133: #define CHARSET_NAME_UPPER "CHARSET"
134: #define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"
135:
1.233 paf 136: // op.C
1.248 paf 137: VStateless_class& VClassMAIN_create();
1.123 paf 138:
1.157 parser 139: //
1.248 paf 140: Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
1.325 moko 141: String::Language adefault_lang):
1.248 paf 142: // private
143: anti_endless_execute_recoursion(0),
144:
145: // public
1.335 moko 146: allow_class_replace(false),
1.248 paf 147: method_frame(0),
148: rcontext(0),
149: wcontext(0),
150: flang(adefault_lang),
1.191 paf 151: fconnection(0),
1.371 moko 152: fin_cycle(0),
1.307 misha 153: fskip(SKIP_NOTHING),
1.248 paf 154:
155: // public
1.257 paf 156: request_info(arequest_info),
1.248 paf 157: sapi_info(asapi_info),
1.359 moko 158: charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets
1.248 paf 159:
160: main_class(VClassMAIN_create()),
1.260 paf 161: form(*new VForm(charsets, arequest_info)),
1.248 paf 162: mail(*new VMail),
163: response(*new VResponse(arequest_info, charsets)),
1.298 misha 164: cookie(*new VCookie(charsets, arequest_info)),
1.285 misha 165: console(*new VConsole),
1.248 paf 166:
167: // private
168: configure_admin_done(false),
169:
170: // private defaults
171: fdefault_lang(adefault_lang),
172: // private mime types
173: mime_types(0)
1.157 parser 174: {
1.261 paf 175: pa_register_thread_request(*this);
176:
1.248 paf 177: // file_no=0 => unknown
1.347 moko 178: file_list+="UNKNOWN";
179: file_list+="-body of process-"; // pseudo_file_no__process
1.186 paf 180:
1.178 paf 181: // maybe expire old caches
1.264 paf 182: cache_managers->maybe_expire();
1.178 paf 183:
1.157 parser 184: /// directly used
1.233 paf 185: // MAIN class, operators
1.353 moko 186: put_class(&main_class);
1.157 parser 187: // classes:
188: // table, file, random, mail, image, ...
1.248 paf 189: methoded_array().register_directly_used(*this);
1.157 parser 190:
191: /// methodless
1.354 moko 192:
1.157 parser 193: // env class
1.353 moko 194: put_class(new VEnv(asapi_info));
1.175 paf 195: // status class
1.353 moko 196: put_class(new VStatus());
1.157 parser 197: // request class
1.353 moko 198: put_class(new VRequest(arequest_info, charsets, form, asapi_info));
1.157 parser 199: // cookie class
1.353 moko 200: put_class(&cookie);
1.253 paf 201: // console class
1.353 moko 202: put_class(&console);
1.354 moko 203:
1.157 parser 204: /// methoded
1.354 moko 205:
1.157 parser 206: // response class
1.353 moko 207: put_class(&response);
1.157 parser 208: // form class
1.353 moko 209: put_class(&form);
1.213 paf 210: // mail class
1.353 moko 211: put_class(&mail);
1.157 parser 212: // math class
1.353 moko 213: put_class(new VMath);
1.248 paf 214: // memory class
1.353 moko 215: put_class(new VMemory);
1.117 paf 216: }
1.192 paf 217:
218: Request::~Request() {
219: #ifdef XML
220: // if for some strange reason xml generic errors failed to be reported, free them up
1.248 paf 221: if(const char* xml_generic_errors=xmlGenericErrors()) {
222: SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
1.341 moko 223: pa_free((void *)xml_generic_errors);
1.192 paf 224: }
225: #endif
226: }
1.236 paf 227:
1.248 paf 228: Value& Request::get_self() { return method_frame/*always have!*/->self(); }
1.192 paf 229:
1.355 moko 230: VStateless_class* Request::get_class(const String& name){
231: VStateless_class* result=classes().get(name);
1.313 misha 232: if(!result)
1.375 moko 233: if(const Method *method=main_class.get_element_method(autouse_method_name)){
1.364 moko 234: Value *vname=new VString(name);
235: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
236: frame.store_params(&vname, 1);
237: // we don't need the result
238: call(frame);
239: });
240: result=classes().get(name);
241: }
1.309 misha 242: return result;
243: }
244:
1.356 moko 245: static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
1.359 moko 246: pa_charsets.load_charset(*charsets, akey, avalue->as_string());
1.208 paf 247: }
1.356 moko 248:
1.248 paf 249: void Request::configure_admin(VStateless_class& conf_class) {
1.208 paf 250: if(configure_admin_done)
1.356 moko 251: throw Exception(PARSER_RUNTIME, 0, "parser already configured");
1.208 paf 252: configure_admin_done=true;
253:
1.227 paf 254: // charsets must only be specified in method_frame config
1.208 paf 255: // so that users would not interfere
256:
257: /* $MAIN:CHARSETS[
258: $.charsetname1[/full/path/to/charset/file.cfg]
259: ...
260: ]
261: */
1.308 misha 262: if(Value* vcharsets=conf_class.get_element(charsets_name)) {
1.342 moko 263: if(!vcharsets->is_string()) {
1.248 paf 264: if(HashStringValue* charsets=vcharsets->get_hash())
1.281 paf 265: charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
1.240 paf 266: else
1.356 moko 267: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
1.342 moko 268: }
1.208 paf 269: }
270:
1.330 moko 271: #ifdef STRICT_VARS
1.332 moko 272: VVoid::strict_vars=false;
1.330 moko 273: if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
274: if(strict_vars->is_bool())
275: VVoid::strict_vars=strict_vars->as_bool();
1.357 moko 276: else
277: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
278: }
279: #endif
280:
281: #ifdef OBJECT_PROTOTYPE
282: VClass::prototype=true;
283: if(Value* prototype=conf_class.get_element(prototype_name)) {
284: if(prototype->is_bool())
285: VClass::prototype=prototype->as_bool();
286: else
287: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" PROTOTYPE_NAME " must be bool");
1.330 moko 288: }
289: #endif
290:
1.362 moko 291: Value* limits=conf_class.get_element(limits_name);
292:
1.361 moko 293: pa_loop_limit=LOOP_LIMIT;
1.362 moko 294: if(limits)
295: if(Value* loop_limit=limits->get_element(loop_limit_name)) {
296: if(loop_limit->is_evaluated_expr()) {
297: pa_loop_limit=loop_limit->as_int();
298: if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
299: } else
1.369 moko 300: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOOP_LIMIT_NAME " must be int");
1.362 moko 301: }
1.361 moko 302:
303: pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
1.362 moko 304: if(limits)
305: if(Value* recoursion_limit=limits->get_element(recoursion_limit_name)) {
306: if(recoursion_limit->is_evaluated_expr()) {
307: pa_execute_recoursion_limit=recoursion_limit->as_int();
308: if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
309: } else
1.369 moko 310: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." RECOURSION_LIMIT_NAME " must be int");
311: }
312:
1.390 moko 313: pa_httpd_timeout=HTTPD_TIMEOUT;
314: if(limits)
315: if(Value* httpd_timeout=limits->get_element(httpd_timeout_name)) {
316: if(httpd_timeout->is_evaluated_expr()) {
317: pa_httpd_timeout=httpd_timeout->as_int();
318: if(pa_httpd_timeout==0) pa_httpd_timeout=INT_MAX;
319: } else
320: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." HTTPD_TIMEOUT_NAME " must be int");
321: }
322:
1.369 moko 323: pa_file_size_limit=FILE_SIZE_LIMIT;
324: if(limits)
325: if(Value* file_size_limit=limits->get_element(file_size_limit_name)) {
326: if(file_size_limit->is_evaluated_expr()) {
327: double limit=file_size_limit->as_double();
328: if(limit >= (double)SSIZE_MAX)
329: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." FILE_SIZE_LIMIT_NAME " must be less then %.15g", (double)SSIZE_MAX);
330: pa_file_size_limit=(size_t)limit;
331: if(pa_file_size_limit==0) pa_file_size_limit=SSIZE_MAX;
332: } else
333: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." FILE_SIZE_LIMIT_NAME " must be number");
1.362 moko 334: }
1.361 moko 335:
1.372 moko 336: pa_lock_attempts=PA_LOCK_ATTEMPTS;
337: if(limits)
1.373 moko 338: if(Value* lock_wait_timeout=limits->get_element(lock_wait_timeout_name)) {
339: if(lock_wait_timeout->is_evaluated_expr()) {
340: double limit=lock_wait_timeout->as_double();
1.372 moko 341: if(limit >= 3600*24)
1.373 moko 342: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOCK_WAIT_TIMEOUT_NAME " must be less then %d", 3600*24);
1.372 moko 343: pa_lock_attempts=(unsigned int)(limit*2)+1;
344: } else
1.373 moko 345: throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOCK_WAIT_TIMEOUT_NAME " must be number");
1.372 moko 346: }
347:
1.227 paf 348: // configure method_frame options
1.208 paf 349: // until someone with less privileges have overriden them
1.248 paf 350: methoded_array().configure_admin(*this);
1.208 paf 351: }
1.150 parser 352:
1.349 moko 353: const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
354:
1.269 paf 355: #define PA_URI_FORMAT "%s: "
1.349 moko 356: #define PA_COMMENT_TYPE_FORMAT "%s [%s]"
357:
1.269 paf 358: #define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
359: #define PA_SOURCE_FORMAT "'%s' "
1.349 moko 360:
361: #define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
362: #define PA_SOURCE_VALUE details.problem_source->cstr(),
363:
364: #define EXCEPTION_CSTR(f1,v1,f2,v2) \
365: snprintf(result, MAX_STRING, \
366: PA_URI_FORMAT \
367: f1 f2 \
368: PA_COMMENT_TYPE_FORMAT, \
369: request_info.uri, \
370: v1 v2 \
371: e.comment(), e.type() \
372: );
373:
1.269 paf 374: char* result=new(PointerFreeGC) char[MAX_STRING];
375:
376: if(details.problem_source) { // do we know the guy?
1.349 moko 377: if(details.origin.file_no) // do whe know where he came from?
378: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
379: else
380: EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
381: } else {
382: if(details.origin.file_no) // do whe know where he came from?
383: EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
384: else
385: EXCEPTION_CSTR(,,,)
386: }
1.269 paf 387:
388: return result;
389: }
1.272 paf 390:
391: void Request::configure() {
392: // configure admin options if not configured yet
393: if(!configure_admin_done)
394: configure_admin(main_class);
395:
396: // configure not-admin=user options
397: methoded_array().configure_user(*this);
398:
399: // $MAIN:MIME-TYPES
1.308 misha 400: if(Value* element=main_class.get_element(mime_types_name))
1.272 paf 401: if(Table *table=element->get_table())
402: mime_types=table;
403: }
1.64 paf 404: /**
405: load MAIN class, execute @main.
406: MAIN class consists of all the auto.p files we'd manage to find
407: plus
408: the file user requested us to process
409: all located classes become children of one another,
410: composing class we name 'MAIN'
1.180 paf 411:
412: @test log stack trace
413:
1.64 paf 414: */
1.390 moko 415: void Request::core(const char* config_filespec, bool header_only, const String &amain_method_name) {
1.169 parser 416: try {
1.211 paf 417: // loading config
1.384 moko 418: if(config_filespec)
1.387 moko 419: use_file_directly(*new String(config_filespec));
1.8 paf 420:
1.338 moko 421: // filling mail received
422: mail.fill_received(*this);
423:
1.272 paf 424: try {
425: // compile requested file
1.389 moko 426: if(request_info.path_translated)
427: use_file_directly(*new String(request_info.path_translated, String::L_TAINTED), true, true /* load auto.p files */);
1.272 paf 428: configure();
429: } catch(...) {
430: configure(); // configure anyway, useful in @unhandled_exception [say, if they would want to mail by SMTP something]
431: rethrow;
432: }
1.25 paf 433:
434: // execute @main[]
1.391 moko 435: const String* body_string=amain_method_name.is_empty() ? &String::Empty : execute_method(main_class, amain_method_name);
1.41 paf 436: if(!body_string)
1.390 moko 437: throw Exception(PARSER_RUNTIME, 0, "'%s' method not found", amain_method_name.cstr());
1.79 paf 438:
1.250 paf 439: // extract response body
1.344 moko 440: Value* body_value=response.fields().get(download_name_upper); // $response:download?
1.250 paf 441: bool as_attachment=body_value!=0;
442: if(!body_value)
1.344 moko 443: body_value=response.fields().get(body_name_upper); // $response:body
1.250 paf 444: if(!body_value)
445: body_value=new VString(*body_string); // just result of ^main[]
446:
1.119 paf 447: // @postprocess
1.383 moko 448: if(const Method *method=main_class.get_method(post_process_method_name)) {
449: // preparing to pass parameters to
450: // @postprocess[data]
451: METHOD_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
452: frame.store_params(&body_value, 1);
453: call(frame);
454: body_value=&frame.result();
455: });
456: }
1.90 paf 457:
1.303 misha 458: VFile* body_file=body_value->as_vfile(flang, &charsets);
1.41 paf 459:
1.45 paf 460: // OK. write out the result
1.248 paf 461: output_result(body_file, header_only, as_attachment);
1.183 paf 462:
1.171 parser 463: } catch(const Exception& e) { // request handling problem
1.268 paf 464: try {
1.76 paf 465: // we're returning not result, but error explanation
1.269 paf 466:
467: Request::Exception_details details=get_details(e);
468: const char* exception_cstr=get_exception_cstr(e, details);
1.258 paf 469:
470: // reset language to default
471: flang=fdefault_lang;
472:
473: // reset response
474: response.fields().clear();
475:
476: // this is what we'd return in $response:body
477: const String* body_string=0;
478:
479: // maybe we'd be lucky enough as to report an error
480: // in a gracefull way...
1.383 moko 481: if(const Method *method=main_class.get_method(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
482: // preparing to pass parameters to
483: // @unhandled_exception[exception;stack]
484:
485: // $stack[^table::create{name file lineno colno}]
486: Table::columns_type stack_trace_columns(new ArrayString);
487: *stack_trace_columns+=new String("name");
488: *stack_trace_columns+=new String("file");
489: *stack_trace_columns+=new String("lineno");
490: *stack_trace_columns+=new String("colno");
491: Table& stack_trace=*new Table(stack_trace_columns);
492: if(!exception_trace.is_empty()/*signed!*/)
493: for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
494: Trace trace=exception_trace.get(i);
495: Table::element_type row(new ArrayString);
496:
497: *row+=trace.name(); // name column
498: Operation::Origin origin=trace.origin();
499: if(origin.file_no) {
500: *row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
501: *row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
502: *row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
503: }
504: stack_trace+=row;
1.233 paf 505: }
1.383 moko 506:
507: // future $response:body=
508: // execute ^unhandled_exception[exception;stack]
509: 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)
510:
511: Value *params[]={&details.vhash, new VTable(&stack_trace)};
512: METHOD_FRAME_ACTION(*method, 0 /*no caller*/, main_class, {
513: frame.store_params(params, 2);
514: call(frame);
515: body_string=&frame.result().as_string();
516: });
1.258 paf 517: }
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:
1.381 moko 525: if(body_string) { // could report an error beautifully?
526: VString body_vstring(*body_string);
527: VFile* body_file=body_vstring.as_vfile(flang, &charsets);
528: // write it out the error
529: output_result(body_file, header_only, false);
530: } else {
531: // doing that ugly
532: SAPI::send_error(sapi_info, exception_cstr, !strcmp(e.type(), "file.missing") ? "404" : "500");
533: }
1.287 misha 534:
1.273 paf 535: } catch(const Exception& e) { // exception in unhandled exception
1.269 paf 536: Request::Exception_details details=get_details(e);
537: const char* exception_cstr=get_exception_cstr(e, details);
1.380 moko 538: // unconditionally log the beast in exception handler
539: throw Exception(0, 0, "Unhandled exception in %s", exception_cstr);
1.268 paf 540: }
1.1 paf 541: }
542: }
543:
1.266 paf 544: uint Request::register_file(String::Body file_spec) {
1.248 paf 545: file_list+=file_spec;
546: return file_list.count()-1;
547: }
548:
1.387 moko 549: void Request::use_file_directly(const String& file_spec, bool fail_on_file_absence, bool with_auto_p) {
1.73 paf 550: // cyclic dependence check
1.318 misha 551: if(used_files.get(file_spec))
1.248 paf 552: return;
1.318 misha 553: used_files.put(file_spec, true);
554:
1.385 moko 555: if(!fail_on_file_absence && !entry_exists(file_spec)) // ignore file absence if asked for
556: return;
1.318 misha 557:
1.386 moko 558: if(with_auto_p) {
559: // loading auto.p files from document_root/..
560: // to the one beside requested file.
561: // all assigned bases from upper dir
562: const char* target=file_spec.cstr();
563:
564: // all relative paths are calculated from main document
565: request_info.path_translated=target;
566:
567: const char* after=target;
568: size_t drlen=strlen(request_info.document_root);
569: if(memcmp(after, request_info.document_root, drlen)==0) {
570: after+=drlen;
571: if(after[-1]=='/')
572: --after;
573: }
574:
575: while(const char* before=strchr(after, '/')) {
576: String& sfile_spec=*new String;
577: if(after!=target) {
578: sfile_spec.append_strdup(target, before-target, String::L_CLEAN);
579: sfile_spec << "/" AUTO_FILE_NAME;
580:
1.387 moko 581: use_file_directly(sfile_spec, false /*ignore absence, sole user*/);
1.386 moko 582: }
583: for(after=before+1;*after=='/';after++);
584: }
585: }
586:
1.385 moko 587: if(const char* source=file_read_text(charsets, file_spec, true))
1.387 moko 588: use_buf(main_class, source, 0, register_file(file_spec));
1.318 misha 589: }
590:
591:
1.387 moko 592: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, bool with_auto_p) {
1.326 misha 593: if(file_name.is_empty())
1.366 moko 594: throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");
1.326 misha 595:
1.318 misha 596: const String* filespec=0;
597:
598: if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
1.388 moko 599: filespec=&full_disk_path(file_name);
1.318 misha 600: else if(use_filespec){ // search in current dir first
1.331 misha 601: size_t last_slash_pos=use_filespec->strrpbrk("/");
602: if(last_slash_pos!=STRING_NOT_FOUND)
603: filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
1.318 misha 604: }
605:
606: if(!filespec){
607: // prevent multiple scan CLASS_PATH for searching one file
608: if(searched_along_class_path.get(file_name))
609: return;
610: searched_along_class_path.put(file_name, true);
1.308 misha 611: if(Value* element=main_class.get_element(class_path_name)) {
1.233 paf 612: if(element->is_string()) {
1.388 moko 613: filespec=file_exist(full_disk_path(element->as_string()), file_name); // found at class_path?
1.233 paf 614: } else if(Table *table=element->get_table()) {
1.318 misha 615: for(size_t i=table->count(); i--; ) {
1.248 paf 616: const String& path=*(*table->get(i))[0];
1.388 moko 617: if(filespec=file_exist(full_disk_path(path), file_name))
1.233 paf 618: break; // found along class_path
619: }
620: } else
1.366 moko 621: throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
1.318 misha 622: if(!filespec)
1.366 moko 623: throw Exception(PARSER_RUNTIME, &file_name, "not found along $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
1.318 misha 624: } else
1.366 moko 625: throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
1.148 parser 626: }
1.230 paf 627:
1.387 moko 628: use_file_directly(*filespec, true, with_auto_p);
1.16 paf 629: }
630:
1.364 moko 631: void Request::use_file(const String& file_name, const String* use_filespec/*absolute*/, Operation::Origin origin) {
1.349 moko 632: static String use("USE");
633: try {
1.364 moko 634: static VHash* voptions=new VHash();
1.376 moko 635: if(const Method *method=main_class.get_method(use_method_name)){
1.364 moko 636: Value *params[]={new VString(file_name), voptions};
637: voptions->hash().put(origin_key, new VString(*use_filespec));
638:
639: CONSTRUCTOR_FRAME_ACTION(*method, 0 /*no parent*/, main_class, {
640: frame.store_params(params, 2);
641: // we don't need the result
642: call(frame);
643: });
644: }
1.349 moko 645: } catch (...) {
646: exception_trace.push(Trace(&use, origin));
647: rethrow;
648: }
649: }
1.208 paf 650:
1.358 moko 651: void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
652: // temporary zero @conf to avoid it second execution
1.248 paf 653: Temp_method temp_method_conf(aclass, conf_method_name, 0);
1.358 moko 654: // temporary zero @auto to avoid it second execution
1.248 paf 655: Temp_method temp_method_auto(aclass, auto_method_name, 0);
1.233 paf 656:
1.295 misha 657: // compile loaded classes
658: ArrayClass& cclasses=compile(&aclass, source, main_alias, file_no, line_no_offset);
1.212 paf 659:
1.248 paf 660: VString* vfilespec=
661: new VString(*new String(file_list[file_no], String::L_TAINTED));
1.295 misha 662:
663: for(size_t i=0; i<cclasses.count(); i++){
664: VStateless_class& cclass=*cclasses.get(i);
1.296 misha 665:
666: // locate and execute possible @conf[] static
1.382 moko 667: if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
1.295 misha 668: configure_admin(cclass/*, executed.method->name*/);
669:
670: // locate and execute possible @auto[] static
1.382 moko 671: execute_method_if_exists(cclass, auto_method_name, vfilespec);
1.336 moko 672:
673: cclass.enable_default_setter();
1.295 misha 674: }
1.19 paf 675: }
676:
1.248 paf 677: const String& Request::relative(const char* apath, const String& relative_name) {
1.341 moko 678: char *hpath=pa_strdup(apath);
1.248 paf 679: String& result=*new String;
680: if(rsplit(hpath, '/')) // if something/splitted
1.217 paf 681: result << hpath << "/";
1.248 paf 682: result << relative_name;
683: return result;
1.19 paf 684: }
685:
1.388 moko 686: const String& Request::full_disk_path(const String& relative_name) {
1.217 paf 687: if(relative_name.first_char()=='/') {
1.341 moko 688: String& result=*new String(pa_strdup(request_info.document_root));
1.104 paf 689: result << relative_name;
1.19 paf 690: return result;
1.389 moko 691: }
692: if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx"
1.247 paf 693: #ifdef WIN32
1.389 moko 694: || relative_name.pos(":")==1 // DRIVE:
695: || relative_name.starts_with("\\\\") // UNC1
696: || relative_name.starts_with("//") // UNC2
1.247 paf 697: #endif
1.389 moko 698: )
699: return relative_name;
700:
701: return relative(request_info.path_translated ? request_info.path_translated : request_info.document_root, relative_name);
1.1 paf 702: }
1.45 paf 703:
1.267 paf 704: #ifndef DOXYGEN
705: class Add_header_attribute_info
706: {
707: public:
708: Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {}
709: Request& r;
710: bool add_last_modified;
711: };
712: #endif
1.344 moko 713: static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
714: if(name==BODY_NAME_UPPER || name==DOWNLOAD_NAME_UPPER || name==CHARSET_NAME_UPPER)
1.101 paf 715: return;
1.290 misha 716:
1.345 moko 717: if(name==LAST_MODIFIED_NAME_UPPER)
718: info->add_last_modified=false;
719:
1.316 misha 720: const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);
1.101 paf 721:
1.267 paf 722: SAPI::add_header_attribute(info->r.sapi_info,
1.345 moko 723: aname,
1.316 misha 724: attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
1.303 misha 725: );
1.267 paf 726: }
727:
1.366 moko 728: static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
1.267 paf 729: // transcode text body when "text/*" or simple result
730: String::C output(body_file.value_ptr(), body_file.value_size());
731: if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0)
1.366 moko 732: output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
1.267 paf 733:
1.311 misha 734: // prepare header: Content-Length
735: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
1.267 paf 736:
737: // send header
738: SAPI::send_header(r.sapi_info);
739:
740: // send body
741: if(!header_only)
742: SAPI::send_body(r.sapi_info, output.str, output.length);
743: }
744:
745: #ifndef DOXYGEN
746: struct Range
747: {
748: size_t start;
749: size_t end;
750: };
751: #endif
1.313 misha 752: static void parse_range(const String* s, Array<Range> &ar) {
1.267 paf 753: const char *p = s->cstr();
754: if(s->starts_with("bytes="))
755: p += 6;
756: Range r;
757: while(*p){
758: r.start = (size_t)-1;
759: r.end = (size_t)-1;
760: if(*p >= '0' && *p <= '9'){
761: r.start = atol(p);
762: while(*p>='0' && *p<='9') ++p;
763: }
764: if(*p++ != '-') break;
765: if(*p >= '0' && *p <= '9'){
766: r.end = atol(p);
767: while(*p>='0' && *p<='9') ++p;
768: }
769: if(*p == ',') ++p;
770: ar += r;
771: }
1.101 paf 772: }
1.267 paf 773:
1.366 moko 774: static void output_pieces(Request& r, bool header_only, const String& filename, size_t content_length, Value& date, bool add_last_modified) {
1.315 misha 775: SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");
1.270 paf 776:
1.377 moko 777: const size_t BUFSIZE = 128*0x400;
1.267 paf 778: char buf[BUFSIZE];
1.339 moko 779: const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
1.267 paf 780: size_t offset=0;
781: size_t part_length=content_length;
782: if(range){
783: Array<Range> ar;
784: parse_range(new String(range), ar);
785: size_t count = ar.count();
786: if(count == 1){
787: Range &rg = ar.get_ref(0);
788: if(rg.start == (size_t)-1 && rg.end == (size_t)-1){
1.311 misha 789: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "416 Requested Range Not Satisfiable");
1.267 paf 790: return;
791: }
792: if(rg.start == (size_t)-1 && rg.end != (size_t)-1){
793: rg.start = content_length - rg.end;
794: rg.end = content_length;
795: offset += rg.start;
796: part_length = rg.end-rg.start;
797: }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){
798: rg.end = content_length-1;
799: offset += rg.start;
800: part_length -= rg.start;
801: }
802: if(part_length == 0){
1.311 misha 803: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "204 No Content");
1.267 paf 804: return;
805: }
1.311 misha 806: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "206 Partial Content");
1.267 paf 807: snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length);
1.315 misha 808: SAPI::add_header_attribute(r.sapi_info, "content-range", buf);
1.267 paf 809: }else if(count != 0){
1.311 misha 810: SAPI::add_header_attribute(r.sapi_info, HTTP_STATUS, "501 Not Implemented");
1.267 paf 811: return;
812: }
813: }
814:
815:
1.311 misha 816: SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(part_length, "%u"));
1.267 paf 817:
1.314 misha 818: if(add_last_modified)
1.315 misha 819: SAPI::add_header_attribute(r.sapi_info, "last-modified", attributed_meaning_to_string(date, String::L_AS_IS, true).cstr());
1.314 misha 820:
1.267 paf 821: SAPI::send_header(r.sapi_info);
822:
1.388 moko 823: const String& filespec=r.full_disk_path(filename);
1.267 paf 824:
825: size_t sent = 0;
826: if(!header_only){
827: size_t to_read = 0;
828: size_t size = 0;
829: do{
1.378 moko 830: to_read = part_length < BUFSIZE ? part_length : BUFSIZE;
1.379 moko 831: File_read_result read_result=file_read_binary(filespec, true /*fail on problem*/, buf, offset, to_read);
1.267 paf 832: to_read=read_result.length;
833: if(to_read == 0)
834: break;
835: offset += to_read;
836:
837: size = SAPI::send_body(r.sapi_info, read_result.str, to_read);
838: sent += size;
839: if(size != to_read)
840: break;
841: part_length -= to_read;
842: }while(part_length);
843: }
844: }
845:
1.248 paf 846: void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) {
1.51 paf 847: // header: cookies
1.248 paf 848: cookie.output_result(sapi_info);
1.51 paf 849:
1.314 misha 850: // _file_ content-type might be specified
1.267 paf 851: Value* body_file_content_type=body_file->fields().get(content_type_name);
1.92 paf 852:
1.314 misha 853: // Content-Disposition
1.267 paf 854: Value* vfile_name=body_file->fields().get(name_name);
855: if(!vfile_name) {
856: vfile_name=body_file->fields().get(response_body_file_name);
1.313 misha 857: if(vfile_name) {
1.393 ! moko 858: vfile_name=new VString(*new String(pa_filename(vfile_name->as_string().cstr())));
1.274 paf 859: }
1.267 paf 860: }
861: if(vfile_name) {
862: const String& sfile_name=vfile_name->as_string();
863: if(sfile_name!=NONAME_DAT) {
1.392 moko 864: VHash& hash=*new VHash();
865: hash.hash().put(value_name, new VString(as_attachment ? content_disposition_attachment : content_disposition_inline));
866: hash.hash().put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));
867: response.fields().put(content_disposition_name_upper, &hash);
1.267 paf 868:
869: if(!body_file_content_type)
870: body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
1.111 paf 871: }
1.267 paf 872: }
873:
1.312 misha 874: // set Content-Type
1.314 misha 875: if(body_file_content_type) {
876: // body file content type
1.344 moko 877: response.fields().put(content_type_name_upper, body_file_content_type);
1.314 misha 878: } else {
879: // default content type
1.344 moko 880: response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
1.314 misha 881: }
1.312 misha 882:
1.314 misha 883: // prepare header: $response:fields without :body, :download and :charset
1.267 paf 884: Add_header_attribute_info info(*this);
1.281 paf 885: response.fields().for_each<Add_header_attribute_info*>(add_header_attribute, &info);
1.50 paf 886:
1.267 paf 887: if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
1.314 misha 888: // $response:[download|body][$.file[filespec]] -- optput specified file
1.267 paf 889: const String& sresponse_body_file=vresponse_body_file->as_string();
1.367 moko 890: uint64_t content_length=0;
1.267 paf 891: time_t atime=0, mtime=0, ctime=0;
1.388 moko 892: file_stat(full_disk_path(sresponse_body_file), content_length, atime, mtime, ctime);
1.267 paf 893:
894: VDate* vdate=0;
895: if(Value* v=body_file->fields().get("mdate")) {
1.308 misha 896: if(Value* vdatep=v->as(VDATE_TYPE))
1.267 paf 897: vdate=static_cast<VDate*>(vdatep);
898: else
1.286 misha 899: throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
1.267 paf 900: }
901: if(!vdate)
1.346 moko 902: vdate=new VDate((pa_time_t)mtime);
1.62 paf 903:
1.368 moko 904: output_pieces(*this, header_only, sresponse_body_file, (size_t)content_length, *vdate, info.add_last_modified);
1.267 paf 905: } else {
1.314 misha 906: if(body_file_content_type)
907: if(HashStringValue *hash=body_file_content_type->get_hash())
908: body_file_content_type=hash->get(value_name);
909:
1.366 moko 910: output_sole_piece(*this, header_only, *body_file, body_file_content_type);
1.267 paf 911: }
1.50 paf 912: }
1.104 paf 913:
1.328 misha 914: const String& Request::mime_type_of(const String* file_name) {
915: return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
916: }
917:
1.248 paf 918: const String& Request::mime_type_of(const char* user_file_name_cstr) {
1.104 paf 919: if(mime_types)
1.248 paf 920: if(const char* cext=strrchr(user_file_name_cstr, '.')) {
921: String sext(++cext);
1.246 paf 922: Table::Action_options options;
1.342 moko 923: if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
1.313 misha 924: if(const String* result=mime_types->item(1))
925: return *result;
1.104 paf 926: else
1.366 moko 927: throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
1.342 moko 928: }
1.104 paf 929: }
1.248 paf 930:
931: return *new String("application/octet-stream");
932: }
933:
1.365 moko 934: const String* Request::get_used_filespec(uint file_no){
1.318 misha 935: if(file_no < file_list.count())
936: return new String(file_list[file_no], String::L_TAINTED);
937: return 0;
938: }
939:
1.248 paf 940: #ifdef XML
1.280 paf 941: xmlChar* Request::transcode(const String& s) {
1.248 paf 942: return charsets.source().transcode(s);
943: }
944:
1.280 paf 945: xmlChar* Request::transcode(const String::Body s) {
1.248 paf 946: return charsets.source().transcode(s);
947: }
948:
1.280 paf 949: const String& Request::transcode(const xmlChar* s) {
1.248 paf 950: return charsets.source().transcode(s);
1.233 paf 951: }
1.248 paf 952: #endif
953:
1.349 moko 954: Request::Exception_details Request::get_details(const Exception& e) {
955: const String* problem_source=e.problem_source();
956: VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
957: Operation::Origin origin={0, 0, 0};
1.248 paf 958:
1.349 moko 959: if(!exception_trace.is_empty()) {
960: Trace bottom=exception_trace.bottom_value();
1.350 moko 961: origin=bottom.origin();
962: if(!problem_source) { // we don't know who trigged the bug
963: problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
964: exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
965: } else if (bottom.name()==problem_source) { // it is that same guy?
1.349 moko 966: exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
967: } else {
968: // stack top contains not us, leaving intact to help ^throw
1.279 paf 969: }
1.248 paf 970: }
971:
972: // $.type
973: if(const char* type=e.type(true))
974: hash.put(exception_type_part_name, new VString(*new String(type)));
975:
976: // $.source
1.349 moko 977: if(problem_source)
978: hash.put(exception_source_part_name, new VString(*new String(*problem_source, String::L_TAINTED)));
1.248 paf 979:
1.349 moko 980: // $.file $.lineno $.colno
981: if(origin.file_no){
1.347 moko 982: hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
983: hash.put("lineno", new VInt(1+origin.line));
984: hash.put("colno", new VInt(1+origin.col));
1.248 paf 985: }
986:
987: // $.comment
988: if(const char* comment=e.comment(true))
1.349 moko 989: hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
1.248 paf 990:
991: // $.handled(0)
1.299 misha 992: hash.put(exception_handled_part_name, &VBool::get(false));
1.233 paf 993:
1.349 moko 994: return Request::Exception_details(origin, problem_source, vhash);
1.133 parser 995: }
1.337 moko 996:
997: Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
998: frequest(arequest),
999: fwhere(awhere),
1000: fname(aname),
1001: saved(awhere.get_element(aname))
1002: {
1003: Junction* junction;
1004: if(saved && (junction=saved->get_junction()) && junction->is_getter)
1005: saved=0;
1006: frequest.put_element(fwhere, aname, awhat);
1007: }
1008:
1009: Temp_value_element::~Temp_value_element() {
1010: frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
1011: }
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