Annotation of parser3/src/classes/file.C, revision 1.17
1.17 ! paf 1: /** @file
! 2: Parser: @b file parser class.
! 3:
1.1 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.17 ! paf 5:
1.1 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
7:
1.17 ! paf 8: $Id: file.C,v 1.16 2001/04/03 07:54:24 paf Exp $
1.1 paf 9: */
10:
11: #include "pa_request.h"
12: #include "_file.h"
13: #include "pa_vfile.h"
1.11 paf 14: #include "pa_table.h"
1.1 paf 15:
1.9 paf 16: // consts
17:
18: const int FIND_MONKEY_MAX_HOPS=10;
19:
1.1 paf 20: // global var
21:
1.3 paf 22: VStateless_class *file_class;
1.1 paf 23:
24: // methods
25:
26: static void _save(Request& r, const String& method_name, Array *params) {
1.4 paf 27: Pool& pool=r.pool();
1.8 paf 28: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.1 paf 29: // forcing
1.4 paf 30: // ^save[this body type]
1.8 paf 31: r.fail_if_junction_(true, vfile_name,
1.4 paf 32: method_name, "file name must not be junction");
33:
34: // forcing untaint language
35: String lfile_name(pool);
1.8 paf 36: lfile_name.append(vfile_name.as_string(),
1.5 paf 37: String::UL_FILE_NAME, true);
1.7 paf 38:
39: // save
40: static_cast<VFile *>(r.self)->save(r.absolute(lfile_name));
41: }
42:
43: static void _delete(Request& r, const String& method_name, Array *params) {
44: Pool& pool=r.pool();
1.8 paf 45: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.7 paf 46: // forcing
47: // ^delete[this body type]
1.8 paf 48: r.fail_if_junction_(true, vfile_name,
1.7 paf 49: method_name, "file name must not be junction");
50:
51: // forcing untaint language
52: String lfile_name(pool);
1.8 paf 53: lfile_name.append(vfile_name.as_string(),
1.7 paf 54: String::UL_FILE_NAME, true);
1.4 paf 55:
1.7 paf 56: // unlink
57: file_delete(pool, r.absolute(lfile_name));
1.1 paf 58: }
59:
1.8 paf 60: static void _find(Request& r, const String& method_name, Array *params) {
61: Pool& pool=r.pool();
62: Value& vfile_name=*static_cast<Value *>(params->get(0));
63: // forcing
64: // ^delete[this body type]
65: r.fail_if_junction_(true, vfile_name,
66: method_name, "file name must not be junction");
67:
68: // forcing untaint language
69: String lfile_name(pool);
70: lfile_name.append(vfile_name.as_string(),
71: String::UL_FILE_NAME, true);
72:
73: // passed file name simply exists in current dir
74: if(file_readable(r.absolute(lfile_name))) {
75: r.write_no_lang(*new(pool) VString(lfile_name));
76: return;
77: }
78:
79: // scan .. dirs for result
1.9 paf 80: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 81: String test_name(pool);
82: for(int j=0; j<i; j++)
83: test_name.APPEND_CONST("../");
1.15 paf 84: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 85: if(file_readable(r.absolute(test_name))) {
86: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
87: return;
88: }
89: }
90:
91: // not found
92: if(params->size()==2) {
93: // forcing ..{this body type}
94: Value& not_found_code=*static_cast<Value *>(params->get(1));
95: r.fail_if_junction_(false, not_found_code,
96: method_name, "not-found param must be junction");
97: r.write_pass_lang(r.process(not_found_code));
98: }
99: }
100:
1.9 paf 101: static void _load(Request& r, const String& method_name, Array *params) {
102: Pool& pool=r.pool();
103: Value& vfile_name=*static_cast<Value *>(params->get(0));
104:
1.10 paf 105: // forcing ^load[this body type]
1.9 paf 106: r.fail_if_junction_(true, vfile_name,
107: method_name, "file name must not be junction");
108:
109: // forcing untaint language
110: String lfile_name(pool);
111: lfile_name.append(vfile_name.as_string(),
112: String::UL_FILE_NAME, true);
113:
1.12 paf 114: void *data; size_t size;
1.9 paf 115: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
116:
117: char *user_file_name=params->size()==1?lfile_name.cstr()
118: :static_cast<Value *>(params->get(1))->as_string().cstr();
1.10 paf 119:
1.11 paf 120: const String *mime_type=0;
121: if(params->size()==3)
122: mime_type=&static_cast<Value *>(params->get(2))->as_string();
123: else {
124: if(r.mime_types) {
125: if(char *cext=strrchr(user_file_name, '.')) {
126: cext++;
127: String sext(pool, cext);
128: if(r.mime_types->locate(0, sext))
129: if(!(mime_type=r.mime_types->item(1)))
130: PTHROW(0, 0,
1.12 paf 131: r.mime_types->origin_string(),
132: "MIME-TYPE table column elements must not be empty");
1.11 paf 133: }
134: }
135: }
1.12 paf 136:
1.11 paf 137: if(!mime_type)
138: mime_type=new(pool) String(pool, "application/octet-stream");
139:
140: static_cast<VFile *>(r.self)->set(data, size, user_file_name, mime_type);
1.9 paf 141: }
142:
1.1 paf 143: // initialize
144:
1.3 paf 145: void initialize_file_class(Pool& pool, VStateless_class& vclass) {
1.1 paf 146: // ^save[file-name]
1.14 paf 147: vclass.add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 148:
149: // ^delete[file-name]
1.14 paf 150: vclass.add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.8 paf 151:
152: // ^find[file-name]
153: // ^find[file-name]{when-not-found}
1.14 paf 154: vclass.add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 155:
156: // ^load[disk-name]
157: // ^load[disk-name;user-name]
1.11 paf 158: // ^load[disk-name;user-name;mime-type]
1.14 paf 159: vclass.add_native_method("load", Method::CT_DYNAMIC, _load, 1, 3);
1.1 paf 160: }
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