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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:
1.40 ! paf 6: $Id: pa_request.C,v 1.39 2001/03/15 11:09:49 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),
30: root_class(apool),
31: env_class(apool),
1.27 paf 32: form_class(apool),
1.40 ! paf 33: request_class(apool, *this),
1.3 paf 34: fclasses(apool),
1.28 paf 35: flang(alang),
1.33 paf 36: info(ainfo)
1.3 paf 37: {
1.27 paf 38: // root superclass,
1.3 paf 39: // parent of all classes,
40: // operators holder
1.27 paf 41: initialize_root_class(pool(), root_class);
1.6 paf 42: classes().put(*root_class_name, &root_class);
1.27 paf 43: // table class
44: classes().put(*table_class_name, table_class);
45: // table_class->set_name(*table_class_name);
1.3 paf 46:
47: // env class
1.6 paf 48: classes().put(*env_class_name, &env_class);
1.27 paf 49: // form class
50: classes().put(*form_class_name, &form_class);
1.40 ! paf 51: // request class
! 52: classes().put(*request_class_name, &request_class);
1.3 paf 53: }
1.1 paf 54:
1.29 paf 55: char *Request::core(const char *sys_auto_path1,
56: const char *sys_auto_path2) {
1.28 paf 57: char *result;
1.29 paf 58: VStateless_class *main_class=0;
1.3 paf 59: TRY {
1.29 paf 60: char *auto_filespec=(char *)malloc(MAX_STRING);
61:
62: // load MAIN class,
63: // it consists of all the auto.p files we'd manage to find
64: // plus
65: // the file user requested us to process
66: // all located classes become children of one another,
67: // composing class we name 'MAIN'
68:
69: // loading system auto.p 1
70: if(sys_auto_path1) {
1.30 paf 71: strncpy(auto_filespec, sys_auto_path1, MAX_STRING-strlen(AUTO_FILE_NAME));
1.29 paf 72: strcat(auto_filespec, AUTO_FILE_NAME);
73: main_class=use_file(
74: auto_filespec, false/*ignore possible read problem*/,
1.37 paf 75: main_class_name, main_class);
1.29 paf 76: }
77:
78: // loading system auto.p 2
79: if(sys_auto_path2) {
1.30 paf 80: strncpy(auto_filespec, sys_auto_path2, MAX_STRING-strlen(AUTO_FILE_NAME));
1.29 paf 81: strcat(auto_filespec, AUTO_FILE_NAME);
1.37 paf 82: main_class=use_file(
1.29 paf 83: auto_filespec, false/*ignore possible read problem*/,
1.37 paf 84: main_class_name, main_class);
1.29 paf 85: }
1.8 paf 86:
1.34 paf 87: // $MAIN:limits hash used here,
88: // until someone with less privileges have overriden them
89: Value *limits=main_class?main_class->get_element(*limits_name):0;
90: Value *element;
1.35 paf 91: // $limits.post_max_size default 10M
1.34 paf 92: element=limits?limits->get_element(*post_max_size_name):0;
1.36 paf 93: int value=element?(size_t)element->get_double():0;
94: int post_max_size=value?value:10*0x400*400;
1.34 paf 95:
96: form_class.fill_fields(*this, post_max_size);
1.7 paf 97:
98: // TODO: load site auto.p files, all assigned bases from upper dir
1.39 paf 99: /*char *site_auto_file="Y:\\parser3\\src\\auto.p";
1.16 paf 100: main_class=use_file(
1.39 paf 101: site_auto_file, false/*ignore possible read problem* /,
102: main_class_name, main_class);*/
1.7 paf 103:
104: // there must be some auto.p
1.12 paf 105: if(!main_class)
1.7 paf 106: THROW(0,0,
107: 0,
1.24 paf 108: "no 'auto.p' found (nither system nor any site's)");
1.5 paf 109:
1.7 paf 110: // compiling requested file
1.35 paf 111: main_class=use_file(info.path_translated, true/*don't ignore read problem*/,
1.25 paf 112: main_class_name, main_class);
113:
114: // execute @main[]
1.30 paf 115: result=execute_method(*main_class, *main_method_name);
1.25 paf 116: if(!result)
117: THROW(0,0,
118: 0,
119: "'"MAIN_METHOD_NAME"' method not found");
1.3 paf 120: }
121: CATCH(e) {
1.30 paf 122: TRY {
123: // we're returning not result, but error explanation
124: result=0;
125:
126: if(main_class) { // we've managed to end up with some main_class
127: // maybe we'd be lucky enough as to report an error
128: // in a gracefull way...
129: if(Value *value=main_class->get_element(*exception_method_name))
130: if(Junction *junction=value->get_junction())
131: if(const Method *method=junction->method) {
132: // preparing to pass parameters to
133: // @exception[origin;source;comment;type;code]
1.38 paf 134: VMethodFrame frame(pool(), *junction);
135: frame.set_self(*main_class);
1.30 paf 136:
137: const String *problem_source=e.problem_source();
138: // origin
139: LOCAL_STRING(origin_name, "origin");
1.38 paf 140: Value *origin_value=0;
1.30 paf 141: #ifndef NO_STRING_ORIGIN
1.38 paf 142: if(problem_source) {
143: const Origin& origin=problem_source->origin();
144: if(origin.file) {
145: char *buf=(char *)malloc(MAX_STRING);
146: snprintf(buf, MAX_STRING, "%s(%d): ",
147: origin.file, 1+origin.line);
148: String *NEW_STRING(origin_file_line, buf);
149: origin_value=NEW VString(*origin_file_line);
150: }
1.30 paf 151: }
152: #endif
1.38 paf 153: frame.store_param(origin_name,
154: origin_value?origin_value:NEW VUnknown(pool()));
1.28 paf 155:
1.30 paf 156: // source
157: LOCAL_STRING(source_name, "source");
1.38 paf 158: Value *source_value=0;
159: if(problem_source)
160: source_value=NEW VString(*problem_source);
161: frame.store_param(source_name,
162: source_value?source_value:NEW VUnknown(pool()));
1.30 paf 163:
164: // comment
165: LOCAL_STRING(comment_name, "comment");
166: String *NEW_STRING(comment_value, e.comment());
1.38 paf 167: frame.store_param(comment_name,
1.30 paf 168: NEW VString(*comment_value));
169:
170: // type
171: LOCAL_STRING(type_name, "type");
172: Value *type_value;
173: if(e.type())
174: type_value=NEW VString(*e.type());
175: else
176: type_value=NEW VUnknown(pool());
1.38 paf 177: frame.store_param(type_name, type_value);
1.30 paf 178:
179: // code
180: LOCAL_STRING(code_name, "code");
181: Value *code_value;
182: if(e.code())
183: code_value=NEW VString(*e.code());
184: else
185: code_value=NEW VUnknown(pool());
1.38 paf 186: frame.store_param(code_name, code_value);
1.30 paf 187:
1.38 paf 188: result=execute_method(frame, *method);
1.30 paf 189: }
190: }
191:
192: // couldn't report an error beautifully, doing that ugly
193: if(!result) {
194: result=(char *)malloc(MAX_STRING);
195: result[0]=0;
196: size_t printed=0;
197: const String *problem_source=e.problem_source();
198: if(problem_source) {
1.16 paf 199: #ifndef NO_STRING_ORIGIN
1.30 paf 200: const Origin& origin=problem_source->origin();
201: if(origin.file)
202: printed+=snprintf(result+printed, MAX_STRING-printed, "%s(%d): ",
203: origin.file, 1+origin.line);
1.28 paf 204: #endif
1.30 paf 205: printed+=snprintf(result+printed, MAX_STRING-printed, "'%s' ",
206: problem_source->cstr());
207: }
208: printed+=snprintf(result+printed, MAX_STRING-printed, "%s",
209: e.comment());
210: const String *type=e.type();
211: if(type) {
212: printed+=snprintf(result+printed, MAX_STRING-printed, " type: %s",
213: type->cstr());
214: const String *code=e.code();
215: if(code)
216: printed+=snprintf(result+printed, MAX_STRING-printed, ", code: %s",
217: code->cstr());
218: }
219: }
1.3 paf 220: }
1.30 paf 221: CATCH(e) {
222: // exception in exception handler occured
223: // probably totally out of memory
224: // can't say anything about such sad story
225: // would just return 0
226: result=0;
1.1 paf 227: }
1.30 paf 228: END_CATCH
1.1 paf 229: }
1.3 paf 230: END_CATCH
1.28 paf 231:
232: return result;
1.1 paf 233: }
234:
1.26 paf 235: VStateless_class *Request::use_file(
236: const char *file, bool fail_on_read_problem,
237: const String *name,
238: VStateless_class *base_class) {
1.3 paf 239: // TODO: обнаружить|решить cyclic dependences
1.5 paf 240: char *source=file_read(pool(), file, fail_on_read_problem);
1.3 paf 241: if(!source)
1.12 paf 242: return base_class;
1.3 paf 243:
1.25 paf 244: return use_buf(source, file, 0/*new class*/, name, base_class);
1.16 paf 245: }
246:
1.26 paf 247: VStateless_class *Request::use_buf(
248: const char *source, const char *file,
249: VStateless_class *aclass, const String *name,
250: VStateless_class *base_class) {
1.5 paf 251: // compile loaded class
1.26 paf 252: VStateless_class& cclass=COMPILE(source, aclass, name, base_class, file);
1.1 paf 253:
1.4 paf 254: // locate and execute possible @auto[] static method
1.25 paf 255: execute_method(cclass, *auto_method_name, false /*no result needed*/);
1.16 paf 256: return &cclass;
1.20 paf 257: }
258:
259: void Request::fail_if_junction_(bool is,
1.26 paf 260: Value& value, const String& method_name, char *msg) {
1.20 paf 261:
262: // fail_if_junction(true, junction = fail
263: // fail_if_junction(false, not junction = fail
264: if((value.get_junction()!=0) ^ !is)
265: THROW(0, 0,
266: &method_name,
267: msg);
1.19 paf 268: }
269:
270: char *Request::relative(const char *path, const char *file) {
1.21 paf 271: char *result=(char *)malloc(strlen(path)+strlen(file)+1);
1.19 paf 272: strcpy(result, path);
1.32 paf 273: rsplit(result, PATH_DELIMITER_CHAR);
274: strcat(result, PATH_DELIMITER_STRING);
1.19 paf 275: strcat(result, file);
276: return result;
277: }
278:
279: char *Request::absolute(const char *name) {
280: if(name[0]=='/') {
1.35 paf 281: char *result=(char *)malloc(strlen(info.document_root)+strlen(name)+1);
282: strcpy(result, info.document_root);
1.19 paf 283: strcat(result, name);
284: return result;
285: } else
1.40 ! paf 286: return relative(info.uri, name);
1.1 paf 287: }