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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:
1.44 ! paf 6: $Id: pa_request.C,v 1.43 2001/03/18 13:22:07 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:
1.28 paf 23: Request::Request(Pool& apool,
1.33 paf 24: Info& ainfo,
1.43 paf 25: String::Untaint_lang adefault_lang) : Pooled(apool),
1.3 paf 26: stack(apool),
1.41 paf 27: ROOT(apool),
28: env(apool),
29: form(apool),
30: request(apool, *this),
31: response(apool),
1.3 paf 32: fclasses(apool),
1.43 paf 33: fdefault_lang(adefault_lang), flang(adefault_lang),
34: info(ainfo),
35: fdefault_content_type(0)
1.3 paf 36: {
1.27 paf 37: // root superclass,
1.3 paf 38: // parent of all classes,
39: // operators holder
1.41 paf 40: initialize_root_class(pool(), ROOT);
41: classes().put(*root_class_name, &ROOT);
1.27 paf 42: // table class
43: classes().put(*table_class_name, table_class);
44: // table_class->set_name(*table_class_name);
1.3 paf 45:
46: // env class
1.41 paf 47: classes().put(*env_class_name, &env);
1.27 paf 48: // form class
1.41 paf 49: classes().put(*form_class_name, &form);
1.40 paf 50: // request class
1.41 paf 51: classes().put(*request_class_name, &request);
52: // response class
53: classes().put(*response_class_name, &response);
1.3 paf 54: }
1.1 paf 55:
1.41 paf 56: void Request::core(Exception& system_exception,
57: const char *sys_auto_path1,
58: const char *sys_auto_path2) {
1.29 paf 59: VStateless_class *main_class=0;
1.41 paf 60: bool need_rethrow=false; Exception rethrow_me;
1.3 paf 61: TRY {
1.29 paf 62: char *auto_filespec=(char *)malloc(MAX_STRING);
63:
64: // load MAIN class,
65: // it consists of all the auto.p files we'd manage to find
66: // plus
67: // the file user requested us to process
68: // all located classes become children of one another,
69: // composing class we name 'MAIN'
70:
71: // loading system auto.p 1
72: if(sys_auto_path1) {
1.30 paf 73: strncpy(auto_filespec, sys_auto_path1, MAX_STRING-strlen(AUTO_FILE_NAME));
1.29 paf 74: strcat(auto_filespec, AUTO_FILE_NAME);
75: main_class=use_file(
76: auto_filespec, false/*ignore possible read problem*/,
1.37 paf 77: main_class_name, main_class);
1.29 paf 78: }
79:
80: // loading system auto.p 2
81: if(sys_auto_path2) {
1.30 paf 82: strncpy(auto_filespec, sys_auto_path2, MAX_STRING-strlen(AUTO_FILE_NAME));
1.29 paf 83: strcat(auto_filespec, AUTO_FILE_NAME);
1.37 paf 84: main_class=use_file(
1.29 paf 85: auto_filespec, false/*ignore possible read problem*/,
1.37 paf 86: main_class_name, main_class);
1.29 paf 87: }
1.8 paf 88:
1.42 paf 89: Value *element;
1.34 paf 90: // $MAIN:limits hash used here,
91: // until someone with less privileges have overriden them
92: Value *limits=main_class?main_class->get_element(*limits_name):0;
1.35 paf 93: // $limits.post_max_size default 10M
1.34 paf 94: element=limits?limits->get_element(*post_max_size_name):0;
1.36 paf 95: int value=element?(size_t)element->get_double():0;
96: int post_max_size=value?value:10*0x400*400;
1.34 paf 97:
1.41 paf 98: form.fill_fields(*this, post_max_size);
1.7 paf 99:
100: // TODO: load site auto.p files, all assigned bases from upper dir
1.39 paf 101: /*char *site_auto_file="Y:\\parser3\\src\\auto.p";
1.16 paf 102: main_class=use_file(
1.39 paf 103: site_auto_file, false/*ignore possible read problem* /,
104: main_class_name, main_class);*/
1.7 paf 105:
1.42 paf 106: // $MAIN:defaults
107: Value *defaults=main_class?main_class->get_element(*defaults_name):0;
108: // $defaults.content-type
109: element=defaults?defaults->get_element(*content_type_name):0;
1.43 paf 110: response.fields().put(*content_type_name, fdefault_content_type=element);
1.42 paf 111:
1.7 paf 112: // there must be some auto.p
1.12 paf 113: if(!main_class)
1.7 paf 114: THROW(0,0,
115: 0,
1.24 paf 116: "no 'auto.p' found (nither system nor any site's)");
1.5 paf 117:
1.7 paf 118: // compiling requested file
1.35 paf 119: main_class=use_file(info.path_translated, true/*don't ignore read problem*/,
1.25 paf 120: main_class_name, main_class);
121:
122: // execute @main[]
1.41 paf 123: const String *body_string=execute_method(*main_class, *main_method_name);
124: if(!body_string)
1.25 paf 125: THROW(0,0,
126: 0,
127: "'"MAIN_METHOD_NAME"' method not found");
1.41 paf 128:
129: // store 'body' unless response already have one
130: response.fields().put_dont_replace(*body_name, NEW VString(*body_string));
1.3 paf 131: }
132: CATCH(e) {
1.30 paf 133: TRY {
134: // we're returning not result, but error explanation
1.43 paf 135:
136: // reset language to default
137: flang=fdefault_lang;
138:
139: // reset response
140: response.fields().clear();
141:
142: // this is what we'd return in $response:content-type
143: Value *content_type;
144:
145: // this is what we'd return in $response:body
1.41 paf 146: const String *body_string=0;
1.43 paf 147:
1.30 paf 148: if(main_class) { // we've managed to end up with some main_class
149: // maybe we'd be lucky enough as to report an error
150: // in a gracefull way...
151: if(Value *value=main_class->get_element(*exception_method_name))
152: if(Junction *junction=value->get_junction())
153: if(const Method *method=junction->method) {
154: // preparing to pass parameters to
155: // @exception[origin;source;comment;type;code]
1.38 paf 156: VMethodFrame frame(pool(), *junction);
157: frame.set_self(*main_class);
1.30 paf 158:
159: const String *problem_source=e.problem_source();
160: // origin
1.44 ! paf 161: String origin_name(pool(), "origin");
1.38 paf 162: Value *origin_value=0;
1.30 paf 163: #ifndef NO_STRING_ORIGIN
1.38 paf 164: if(problem_source) {
165: const Origin& origin=problem_source->origin();
166: if(origin.file) {
167: char *buf=(char *)malloc(MAX_STRING);
1.42 paf 168: snprintf(buf, MAX_STRING, "%s(%d):",
1.38 paf 169: origin.file, 1+origin.line);
1.44 ! paf 170: String *origin_file_line=NEW String(pool(),
! 171: buf, true);
1.38 paf 172: origin_value=NEW VString(*origin_file_line);
173: }
1.30 paf 174: }
175: #endif
1.38 paf 176: frame.store_param(origin_name,
177: origin_value?origin_value:NEW VUnknown(pool()));
1.28 paf 178:
1.30 paf 179: // source
1.44 ! paf 180: String source_name(pool(), "source");
1.38 paf 181: Value *source_value=0;
1.43 paf 182: if(problem_source) {
183: String& problem_source_copy=*NEW String(*problem_source);
184: problem_source_copy.change_lang(flang);
185: source_value=NEW VString(problem_source_copy);
186: }
1.38 paf 187: frame.store_param(source_name,
188: source_value?source_value:NEW VUnknown(pool()));
1.30 paf 189:
190: // comment
1.44 ! paf 191: String comment_name(pool(), "comment");
! 192: String *comment_value=NEW String(pool(),
! 193: e.comment(), true);
1.38 paf 194: frame.store_param(comment_name,
1.30 paf 195: NEW VString(*comment_value));
196:
197: // type
1.44 ! paf 198: String type_name(pool(), "type");
1.30 paf 199: Value *type_value;
1.43 paf 200: if(e.type()) {
201: String& type_copy=*NEW String(*e.type());
202: type_copy.change_lang(flang);
203: type_value=NEW VString(type_copy);
204: } else
1.30 paf 205: type_value=NEW VUnknown(pool());
1.38 paf 206: frame.store_param(type_name, type_value);
1.30 paf 207:
208: // code
1.44 ! paf 209: String code_name(pool(), "code");
1.30 paf 210: Value *code_value;
1.43 paf 211: if(e.code()) {
212: String& code_copy=*NEW String(*e.code());
213: code_copy.change_lang(flang);
214: code_value=NEW VString(code_copy);
215: } else
1.30 paf 216: code_value=NEW VUnknown(pool());
1.38 paf 217: frame.store_param(code_name, code_value);
1.30 paf 218:
1.43 paf 219: // future $response:content-type=
220: // content-type from any auto.p
221: content_type=fdefault_content_type;
222: // future $response:body=
223: // execute ^exception[origin;source;comment;type;code]
224: body_string=execute_method(frame, *method);
1.30 paf 225: }
226: }
227:
1.41 paf 228: if(!body_string) { // couldn't report an error beautifully?
229: // doing that ugly
230:
231: // make up result: $origin $source $comment $type $code
232: char *buf=(char *)malloc(MAX_STRING);
1.30 paf 233: size_t printed=0;
234: const String *problem_source=e.problem_source();
235: if(problem_source) {
1.16 paf 236: #ifndef NO_STRING_ORIGIN
1.30 paf 237: const Origin& origin=problem_source->origin();
238: if(origin.file)
1.41 paf 239: printed+=snprintf(buf+printed, MAX_STRING-printed, "%s(%d): ",
1.30 paf 240: origin.file, 1+origin.line);
1.28 paf 241: #endif
1.41 paf 242: printed+=snprintf(buf+printed, MAX_STRING-printed, "'%s' ",
1.30 paf 243: problem_source->cstr());
244: }
1.41 paf 245: printed+=snprintf(buf+printed, MAX_STRING-printed, "%s",
1.30 paf 246: e.comment());
247: const String *type=e.type();
248: if(type) {
1.41 paf 249: printed+=snprintf(buf+printed, MAX_STRING-printed, " type: %s",
1.30 paf 250: type->cstr());
251: const String *code=e.code();
252: if(code)
1.41 paf 253: printed+=snprintf(buf+printed, MAX_STRING-printed, ", code: %s",
1.30 paf 254: code->cstr());
255: }
1.43 paf 256:
257: // future $response:content-type
1.44 ! paf 258: String &content_type_value=*NEW String(pool(), "text/plain");
1.43 paf 259: content_type=NEW VString(content_type_value);
260: // future $response:body
1.44 ! paf 261: body_string=NEW String(pool(), buf);
1.30 paf 262: }
1.41 paf 263:
1.43 paf 264: // store $response:content-type
265: response.fields().put(*content_type_name, content_type);
266: // store $response:body
1.41 paf 267: response.fields().put(*body_name, NEW VString(*body_string));
1.3 paf 268: }
1.30 paf 269: CATCH(e) {
1.41 paf 270: // exception in request exception handler
271: // remember to rethrow it
272: rethrow_me=e; need_rethrow=true;
1.1 paf 273: }
1.30 paf 274: END_CATCH
1.1 paf 275: }
1.41 paf 276: END_CATCH // do not use pool() after this point - no exception handler set
277: // any throw() would try to use zero exception() pointer
278:
279: if(need_rethrow) // there were an exception set for us to rethrow?
280: system_exception._throw(rethrow_me.type(), rethrow_me.code(),
281: rethrow_me.problem_source(),
282: rethrow_me.comment());
1.28 paf 283:
1.1 paf 284: }
285:
1.26 paf 286: VStateless_class *Request::use_file(
287: const char *file, bool fail_on_read_problem,
288: const String *name,
289: VStateless_class *base_class) {
1.3 paf 290: // TODO: обнаружить|решить cyclic dependences
1.5 paf 291: char *source=file_read(pool(), file, fail_on_read_problem);
1.3 paf 292: if(!source)
1.12 paf 293: return base_class;
1.3 paf 294:
1.25 paf 295: return use_buf(source, file, 0/*new class*/, name, base_class);
1.16 paf 296: }
297:
1.26 paf 298: VStateless_class *Request::use_buf(
299: const char *source, const char *file,
300: VStateless_class *aclass, const String *name,
301: VStateless_class *base_class) {
1.5 paf 302: // compile loaded class
1.26 paf 303: VStateless_class& cclass=COMPILE(source, aclass, name, base_class, file);
1.1 paf 304:
1.4 paf 305: // locate and execute possible @auto[] static method
1.25 paf 306: execute_method(cclass, *auto_method_name, false /*no result needed*/);
1.16 paf 307: return &cclass;
1.20 paf 308: }
309:
310: void Request::fail_if_junction_(bool is,
1.26 paf 311: Value& value, const String& method_name, char *msg) {
1.20 paf 312:
313: // fail_if_junction(true, junction = fail
314: // fail_if_junction(false, not junction = fail
315: if((value.get_junction()!=0) ^ !is)
316: THROW(0, 0,
317: &method_name,
318: msg);
1.19 paf 319: }
320:
321: char *Request::relative(const char *path, const char *file) {
1.21 paf 322: char *result=(char *)malloc(strlen(path)+strlen(file)+1);
1.19 paf 323: strcpy(result, path);
1.32 paf 324: rsplit(result, PATH_DELIMITER_CHAR);
325: strcat(result, PATH_DELIMITER_STRING);
1.19 paf 326: strcat(result, file);
327: return result;
328: }
329:
330: char *Request::absolute(const char *name) {
331: if(name[0]=='/') {
1.35 paf 332: char *result=(char *)malloc(strlen(info.document_root)+strlen(name)+1);
333: strcpy(result, info.document_root);
1.19 paf 334: strcat(result, name);
335: return result;
336: } else
1.40 paf 337: return relative(info.uri, name);
1.1 paf 338: }