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1.1 paf 1: /*
1.9 paf 2: Parser
3: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.14 paf 4: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.9 paf 5:
1.42 ! paf 6: $Id: pa_request.C,v 1.41 2001/03/18 11:37:52 paf Exp $
1.1 paf 7: */
8:
1.19 paf 9: #include <string.h>
10:
1.1 paf 11: #include "pa_request.h"
1.3 paf 12: #include "pa_wwrapper.h"
13: #include "pa_common.h"
14: #include "pa_vclass.h"
1.11 paf 15: #include "_root.h"
16: #include "_env.h"
1.17 paf 17: #include "_table.h"
1.31 paf 18: #include "pa_globals.h"
1.30 paf 19: #include "pa_vint.h"
20: #include "pa_vmframe.h"
1.32 paf 21: #include "pa_types.h"
1.3 paf 22:
1.30 paf 23: #define NEW_STRING(name, value) name=NEW String(pool()); name->APPEND_CONST(value)
24: #define LOCAL_STRING(name, value) String name(pool()); name.APPEND_CONST(value)
1.3 paf 25:
1.28 paf 26: Request::Request(Pool& apool,
1.33 paf 27: Info& ainfo,
28: String::Untaint_lang alang) : Pooled(apool),
1.3 paf 29: stack(apool),
1.41 paf 30: ROOT(apool),
31: env(apool),
32: form(apool),
33: request(apool, *this),
34: response(apool),
1.3 paf 35: fclasses(apool),
1.28 paf 36: flang(alang),
1.33 paf 37: info(ainfo)
1.3 paf 38: {
1.27 paf 39: // root superclass,
1.3 paf 40: // parent of all classes,
41: // operators holder
1.41 paf 42: initialize_root_class(pool(), ROOT);
43: classes().put(*root_class_name, &ROOT);
1.27 paf 44: // table class
45: classes().put(*table_class_name, table_class);
46: // table_class->set_name(*table_class_name);
1.3 paf 47:
48: // env class
1.41 paf 49: classes().put(*env_class_name, &env);
1.27 paf 50: // form class
1.41 paf 51: classes().put(*form_class_name, &form);
1.40 paf 52: // request class
1.41 paf 53: classes().put(*request_class_name, &request);
54: // response class
55: classes().put(*response_class_name, &response);
1.3 paf 56: }
1.1 paf 57:
1.41 paf 58: void Request::core(Exception& system_exception,
59: const char *sys_auto_path1,
60: const char *sys_auto_path2) {
1.29 paf 61: VStateless_class *main_class=0;
1.41 paf 62: bool need_rethrow=false; Exception rethrow_me;
1.3 paf 63: TRY {
1.29 paf 64: char *auto_filespec=(char *)malloc(MAX_STRING);
65:
66: // load MAIN class,
67: // it consists of all the auto.p files we'd manage to find
68: // plus
69: // the file user requested us to process
70: // all located classes become children of one another,
71: // composing class we name 'MAIN'
72:
73: // loading system auto.p 1
74: if(sys_auto_path1) {
1.30 paf 75: strncpy(auto_filespec, sys_auto_path1, MAX_STRING-strlen(AUTO_FILE_NAME));
1.29 paf 76: strcat(auto_filespec, AUTO_FILE_NAME);
77: main_class=use_file(
78: auto_filespec, false/*ignore possible read problem*/,
1.37 paf 79: main_class_name, main_class);
1.29 paf 80: }
81:
82: // loading system auto.p 2
83: if(sys_auto_path2) {
1.30 paf 84: strncpy(auto_filespec, sys_auto_path2, MAX_STRING-strlen(AUTO_FILE_NAME));
1.29 paf 85: strcat(auto_filespec, AUTO_FILE_NAME);
1.37 paf 86: main_class=use_file(
1.29 paf 87: auto_filespec, false/*ignore possible read problem*/,
1.37 paf 88: main_class_name, main_class);
1.29 paf 89: }
1.8 paf 90:
1.42 ! paf 91: Value *element;
1.34 paf 92: // $MAIN:limits hash used here,
93: // until someone with less privileges have overriden them
94: Value *limits=main_class?main_class->get_element(*limits_name):0;
1.35 paf 95: // $limits.post_max_size default 10M
1.34 paf 96: element=limits?limits->get_element(*post_max_size_name):0;
1.36 paf 97: int value=element?(size_t)element->get_double():0;
98: int post_max_size=value?value:10*0x400*400;
1.34 paf 99:
1.41 paf 100: //response.fields().put(*content_type_name, TODO);
101:
102: form.fill_fields(*this, post_max_size);
1.7 paf 103:
104: // TODO: load site auto.p files, all assigned bases from upper dir
1.39 paf 105: /*char *site_auto_file="Y:\\parser3\\src\\auto.p";
1.16 paf 106: main_class=use_file(
1.39 paf 107: site_auto_file, false/*ignore possible read problem* /,
108: main_class_name, main_class);*/
1.7 paf 109:
1.42 ! paf 110: // $MAIN:defaults
! 111: Value *defaults=main_class?main_class->get_element(*defaults_name):0;
! 112: // $defaults.content-type
! 113: element=defaults?defaults->get_element(*content_type_name):0;
! 114: if(element)
! 115: response.fields().put(*content_type_name, element);
! 116:
1.7 paf 117: // there must be some auto.p
1.12 paf 118: if(!main_class)
1.7 paf 119: THROW(0,0,
120: 0,
1.24 paf 121: "no 'auto.p' found (nither system nor any site's)");
1.5 paf 122:
1.7 paf 123: // compiling requested file
1.35 paf 124: main_class=use_file(info.path_translated, true/*don't ignore read problem*/,
1.25 paf 125: main_class_name, main_class);
126:
127: // execute @main[]
1.41 paf 128: const String *body_string=execute_method(*main_class, *main_method_name);
129: if(!body_string)
1.25 paf 130: THROW(0,0,
131: 0,
132: "'"MAIN_METHOD_NAME"' method not found");
1.41 paf 133:
134: // store 'body' unless response already have one
135: response.fields().put_dont_replace(*body_name, NEW VString(*body_string));
1.3 paf 136: }
137: CATCH(e) {
1.30 paf 138: TRY {
139: // we're returning not result, but error explanation
1.41 paf 140: const String *body_string=0;
1.30 paf 141:
142: if(main_class) { // we've managed to end up with some main_class
143: // maybe we'd be lucky enough as to report an error
144: // in a gracefull way...
145: if(Value *value=main_class->get_element(*exception_method_name))
146: if(Junction *junction=value->get_junction())
147: if(const Method *method=junction->method) {
148: // preparing to pass parameters to
149: // @exception[origin;source;comment;type;code]
1.38 paf 150: VMethodFrame frame(pool(), *junction);
151: frame.set_self(*main_class);
1.30 paf 152:
153: const String *problem_source=e.problem_source();
154: // origin
155: LOCAL_STRING(origin_name, "origin");
1.38 paf 156: Value *origin_value=0;
1.30 paf 157: #ifndef NO_STRING_ORIGIN
1.38 paf 158: if(problem_source) {
159: const Origin& origin=problem_source->origin();
160: if(origin.file) {
161: char *buf=(char *)malloc(MAX_STRING);
1.42 ! paf 162: snprintf(buf, MAX_STRING, "%s(%d):",
1.38 paf 163: origin.file, 1+origin.line);
164: String *NEW_STRING(origin_file_line, buf);
165: origin_value=NEW VString(*origin_file_line);
166: }
1.30 paf 167: }
168: #endif
1.38 paf 169: frame.store_param(origin_name,
170: origin_value?origin_value:NEW VUnknown(pool()));
1.28 paf 171:
1.30 paf 172: // source
173: LOCAL_STRING(source_name, "source");
1.38 paf 174: Value *source_value=0;
175: if(problem_source)
176: source_value=NEW VString(*problem_source);
177: frame.store_param(source_name,
178: source_value?source_value:NEW VUnknown(pool()));
1.30 paf 179:
180: // comment
181: LOCAL_STRING(comment_name, "comment");
182: String *NEW_STRING(comment_value, e.comment());
1.38 paf 183: frame.store_param(comment_name,
1.30 paf 184: NEW VString(*comment_value));
185:
186: // type
187: LOCAL_STRING(type_name, "type");
188: Value *type_value;
189: if(e.type())
190: type_value=NEW VString(*e.type());
191: else
192: type_value=NEW VUnknown(pool());
1.38 paf 193: frame.store_param(type_name, type_value);
1.30 paf 194:
195: // code
196: LOCAL_STRING(code_name, "code");
197: Value *code_value;
198: if(e.code())
199: code_value=NEW VString(*e.code());
200: else
201: code_value=NEW VUnknown(pool());
1.38 paf 202: frame.store_param(code_name, code_value);
1.30 paf 203:
1.41 paf 204: {
205: Temp_lang temp_lang(*this,
206: String::Untaint_lang::HTML_TYPO);
207: body_string=execute_method(frame, *method);
208: }
1.30 paf 209: }
210: }
211:
1.41 paf 212: if(!body_string) { // couldn't report an error beautifully?
213: // doing that ugly
214:
215: // assign content-type
216: String &content_type_value=*NEW String(pool());
217: content_type_value.APPEND_CONST("text/plain");
218: response.fields().put(*content_type_name,
219: NEW VString(content_type_value));
220:
221: // make up result: $origin $source $comment $type $code
222: char *buf=(char *)malloc(MAX_STRING);
1.30 paf 223: size_t printed=0;
224: const String *problem_source=e.problem_source();
225: if(problem_source) {
1.16 paf 226: #ifndef NO_STRING_ORIGIN
1.30 paf 227: const Origin& origin=problem_source->origin();
228: if(origin.file)
1.41 paf 229: printed+=snprintf(buf+printed, MAX_STRING-printed, "%s(%d): ",
1.30 paf 230: origin.file, 1+origin.line);
1.28 paf 231: #endif
1.41 paf 232: printed+=snprintf(buf+printed, MAX_STRING-printed, "'%s' ",
1.30 paf 233: problem_source->cstr());
234: }
1.41 paf 235: printed+=snprintf(buf+printed, MAX_STRING-printed, "%s",
1.30 paf 236: e.comment());
237: const String *type=e.type();
238: if(type) {
1.41 paf 239: printed+=snprintf(buf+printed, MAX_STRING-printed, " type: %s",
1.30 paf 240: type->cstr());
241: const String *code=e.code();
242: if(code)
1.41 paf 243: printed+=snprintf(buf+printed, MAX_STRING-printed, ", code: %s",
1.30 paf 244: code->cstr());
245: }
1.41 paf 246: String *error_string=NEW String(pool()); error_string->APPEND_CONST(buf);
247: body_string=error_string;
1.30 paf 248: }
1.41 paf 249:
250: // store 'body' overwriting any response already had
251: response.fields().put(*body_name, NEW VString(*body_string));
1.3 paf 252: }
1.30 paf 253: CATCH(e) {
1.41 paf 254: // exception in request exception handler
255: // remember to rethrow it
256: rethrow_me=e; need_rethrow=true;
1.1 paf 257: }
1.30 paf 258: END_CATCH
1.1 paf 259: }
1.41 paf 260: END_CATCH // do not use pool() after this point - no exception handler set
261: // any throw() would try to use zero exception() pointer
262:
263: if(need_rethrow) // there were an exception set for us to rethrow?
264: system_exception._throw(rethrow_me.type(), rethrow_me.code(),
265: rethrow_me.problem_source(),
266: rethrow_me.comment());
1.28 paf 267:
1.1 paf 268: }
269:
1.26 paf 270: VStateless_class *Request::use_file(
271: const char *file, bool fail_on_read_problem,
272: const String *name,
273: VStateless_class *base_class) {
1.3 paf 274: // TODO: обнаружить|решить cyclic dependences
1.5 paf 275: char *source=file_read(pool(), file, fail_on_read_problem);
1.3 paf 276: if(!source)
1.12 paf 277: return base_class;
1.3 paf 278:
1.25 paf 279: return use_buf(source, file, 0/*new class*/, name, base_class);
1.16 paf 280: }
281:
1.26 paf 282: VStateless_class *Request::use_buf(
283: const char *source, const char *file,
284: VStateless_class *aclass, const String *name,
285: VStateless_class *base_class) {
1.5 paf 286: // compile loaded class
1.26 paf 287: VStateless_class& cclass=COMPILE(source, aclass, name, base_class, file);
1.1 paf 288:
1.4 paf 289: // locate and execute possible @auto[] static method
1.25 paf 290: execute_method(cclass, *auto_method_name, false /*no result needed*/);
1.16 paf 291: return &cclass;
1.20 paf 292: }
293:
294: void Request::fail_if_junction_(bool is,
1.26 paf 295: Value& value, const String& method_name, char *msg) {
1.20 paf 296:
297: // fail_if_junction(true, junction = fail
298: // fail_if_junction(false, not junction = fail
299: if((value.get_junction()!=0) ^ !is)
300: THROW(0, 0,
301: &method_name,
302: msg);
1.19 paf 303: }
304:
305: char *Request::relative(const char *path, const char *file) {
1.21 paf 306: char *result=(char *)malloc(strlen(path)+strlen(file)+1);
1.19 paf 307: strcpy(result, path);
1.32 paf 308: rsplit(result, PATH_DELIMITER_CHAR);
309: strcat(result, PATH_DELIMITER_STRING);
1.19 paf 310: strcat(result, file);
311: return result;
312: }
313:
314: char *Request::absolute(const char *name) {
315: if(name[0]=='/') {
1.35 paf 316: char *result=(char *)malloc(strlen(info.document_root)+strlen(name)+1);
317: strcpy(result, info.document_root);
1.19 paf 318: strcat(result, name);
319: return result;
320: } else
1.40 paf 321: return relative(info.uri, name);
1.1 paf 322: }