Annotation of parser3/src/classes/file.C, revision 1.13
1.1 paf 1: /*
2: Parser
3: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
4: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
5:
1.13 ! paf 6: $Id: file.C,v 1.12 2001/03/28 14:41:27 paf Exp $
1.1 paf 7: */
8:
9: #include "pa_request.h"
10: #include "_file.h"
11: #include "pa_vfile.h"
1.11 paf 12: #include "pa_table.h"
1.1 paf 13:
1.9 paf 14: // consts
15:
16: const int FIND_MONKEY_MAX_HOPS=10;
17:
1.1 paf 18: // global var
19:
1.3 paf 20: VStateless_class *file_class;
1.1 paf 21:
22: // methods
23:
1.7 paf 24: /// @test mkdirs
1.1 paf 25: static void _save(Request& r, const String& method_name, Array *params) {
1.13 ! paf 26: if(r.self==file_class)
! 27: RTHROW(0, 0,
! 28: &method_name,
! 29: "method of 'file' is not static");
! 30:
1.4 paf 31: Pool& pool=r.pool();
1.8 paf 32: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.1 paf 33: // forcing
1.4 paf 34: // ^save[this body type]
1.8 paf 35: r.fail_if_junction_(true, vfile_name,
1.4 paf 36: method_name, "file name must not be junction");
37:
38: // forcing untaint language
39: String lfile_name(pool);
1.8 paf 40: lfile_name.append(vfile_name.as_string(),
1.5 paf 41: String::UL_FILE_NAME, true);
1.7 paf 42:
43: // save
44: static_cast<VFile *>(r.self)->save(r.absolute(lfile_name));
45: }
46:
47: static void _delete(Request& r, const String& method_name, Array *params) {
48: Pool& pool=r.pool();
1.8 paf 49: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.7 paf 50: // forcing
51: // ^delete[this body type]
1.8 paf 52: r.fail_if_junction_(true, vfile_name,
1.7 paf 53: method_name, "file name must not be junction");
54:
55: // forcing untaint language
56: String lfile_name(pool);
1.8 paf 57: lfile_name.append(vfile_name.as_string(),
1.7 paf 58: String::UL_FILE_NAME, true);
1.4 paf 59:
1.7 paf 60: // unlink
61: file_delete(pool, r.absolute(lfile_name));
1.1 paf 62: }
63:
1.8 paf 64: static void _find(Request& r, const String& method_name, Array *params) {
65: Pool& pool=r.pool();
66: Value& vfile_name=*static_cast<Value *>(params->get(0));
67: // forcing
68: // ^delete[this body type]
69: r.fail_if_junction_(true, vfile_name,
70: method_name, "file name must not be junction");
71:
72: // forcing untaint language
73: String lfile_name(pool);
74: lfile_name.append(vfile_name.as_string(),
75: String::UL_FILE_NAME, true);
76:
77: // passed file name simply exists in current dir
78: if(file_readable(r.absolute(lfile_name))) {
79: r.write_no_lang(*new(pool) VString(lfile_name));
80: return;
81: }
82:
83: // scan .. dirs for result
1.9 paf 84: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 85: String test_name(pool);
86: for(int j=0; j<i; j++)
87: test_name.APPEND_CONST("../");
88: test_name.append(lfile_name, String::UL_NO);
89: if(file_readable(r.absolute(test_name))) {
90: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
91: return;
92: }
93: }
94:
95: // not found
96: if(params->size()==2) {
97: // forcing ..{this body type}
98: Value& not_found_code=*static_cast<Value *>(params->get(1));
99: r.fail_if_junction_(false, not_found_code,
100: method_name, "not-found param must be junction");
101: r.write_pass_lang(r.process(not_found_code));
102: }
103: }
104:
1.9 paf 105: static void _load(Request& r, const String& method_name, Array *params) {
1.13 ! paf 106: if(r.self==file_class)
! 107: RTHROW(0, 0,
! 108: &method_name,
! 109: "method of 'file' is not static");
! 110:
1.9 paf 111: Pool& pool=r.pool();
112: Value& vfile_name=*static_cast<Value *>(params->get(0));
113:
1.10 paf 114: // forcing ^load[this body type]
1.9 paf 115: r.fail_if_junction_(true, vfile_name,
116: method_name, "file name must not be junction");
117:
118: // forcing untaint language
119: String lfile_name(pool);
120: lfile_name.append(vfile_name.as_string(),
121: String::UL_FILE_NAME, true);
122:
1.12 paf 123: void *data; size_t size;
1.9 paf 124: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
125:
126: char *user_file_name=params->size()==1?lfile_name.cstr()
127: :static_cast<Value *>(params->get(1))->as_string().cstr();
1.10 paf 128:
1.11 paf 129: const String *mime_type=0;
130: if(params->size()==3)
131: mime_type=&static_cast<Value *>(params->get(2))->as_string();
132: else {
133: if(r.mime_types) {
134: if(char *cext=strrchr(user_file_name, '.')) {
135: cext++;
136: String sext(pool, cext);
137: if(r.mime_types->locate(0, sext))
138: if(!(mime_type=r.mime_types->item(1)))
139: PTHROW(0, 0,
1.12 paf 140: r.mime_types->origin_string(),
141: "MIME-TYPE table column elements must not be empty");
1.11 paf 142: }
143: }
144: }
1.12 paf 145:
1.11 paf 146: if(!mime_type)
147: mime_type=new(pool) String(pool, "application/octet-stream");
148:
149: static_cast<VFile *>(r.self)->set(data, size, user_file_name, mime_type);
1.9 paf 150: }
151:
1.1 paf 152: // initialize
153:
1.3 paf 154: void initialize_file_class(Pool& pool, VStateless_class& vclass) {
1.1 paf 155: // ^save[file-name]
156: vclass.add_native_method("save", _save, 1, 1);
1.7 paf 157:
158: // ^delete[file-name]
159: vclass.add_native_method("delete", _delete, 1, 1);
1.8 paf 160:
161: // ^find[file-name]
162: // ^find[file-name]{when-not-found}
163: vclass.add_native_method("find", _find, 1, 2);
1.9 paf 164:
165: // ^load[disk-name]
166: // ^load[disk-name;user-name]
1.11 paf 167: // ^load[disk-name;user-name;mime-type]
168: vclass.add_native_method("load", _load, 1, 3);
1.1 paf 169: }
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