Annotation of parser3/src/classes/file.C, revision 1.27
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:
1.27 ! paf 8: $Id: file.C,v 1.26 2001/04/15 13:12:17 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"
1.21 paf 15: #include "pa_vint.h"
1.24 paf 16: #include "pa_exec.h"
1.1 paf 17:
1.9 paf 18: // consts
19:
20: const int FIND_MONKEY_MAX_HOPS=10;
21:
1.1 paf 22: // global var
23:
1.3 paf 24: VStateless_class *file_class;
1.1 paf 25:
26: // methods
27:
1.26 paf 28: static void _save(Request& r, const String&, MethodParams *params) {
29: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.4 paf 30:
1.7 paf 31: // save
1.18 paf 32: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
1.7 paf 33: }
34:
1.26 paf 35: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 36: Pool& pool=r.pool();
1.26 paf 37: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.7 paf 38:
39: // unlink
1.18 paf 40: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 41: }
42:
1.26 paf 43: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 44: Pool& pool=r.pool();
1.26 paf 45: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.8 paf 46:
1.18 paf 47: const String &lfile_name=vfile_name.as_string();
1.8 paf 48:
49: // passed file name simply exists in current dir
50: if(file_readable(r.absolute(lfile_name))) {
51: r.write_no_lang(*new(pool) VString(lfile_name));
52: return;
53: }
54:
55: // scan .. dirs for result
1.9 paf 56: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 57: String test_name(pool);
58: for(int j=0; j<i; j++)
59: test_name.APPEND_CONST("../");
1.15 paf 60: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 61: if(file_readable(r.absolute(test_name))) {
62: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
63: return;
64: }
65: }
66:
67: // not found
68: if(params->size()==2) {
1.26 paf 69: Value& not_found_code=params->get_junction(1, "not-found param must be code");
1.8 paf 70: r.write_pass_lang(r.process(not_found_code));
71: }
72: }
73:
1.26 paf 74: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 75: Pool& pool=r.pool();
1.26 paf 76: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.9 paf 77:
1.18 paf 78: const String& lfile_name=vfile_name.as_string();
1.9 paf 79:
1.12 paf 80: void *data; size_t size;
1.9 paf 81: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
82:
1.18 paf 83: char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
1.26 paf 84: :params->get(1).as_string().cstr();
1.10 paf 85:
1.21 paf 86: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.20 paf 87: user_file_name, &r.mime_type_of(user_file_name));
1.9 paf 88: }
89:
1.26 paf 90: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 91: Pool& pool=r.pool();
1.26 paf 92: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.25 paf 93:
94: const String& lfile_name=vfile_name.as_string();
95:
96: size_t size=file_size(r.absolute(lfile_name));
97:
98: static_cast<VFile *>(r.self)->set(true/*tainted*/, 0/*no bytes*/, size);
99: }
100:
1.22 paf 101: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
102: Hash& hash=*static_cast<Hash *>(info);
103: hash.put(key, &static_cast<Value *>(value)->as_string());
104: }
1.21 paf 105: /// ^exec[file-name]
106: /// ^exec[file-name;env hash]
107: /// ^exec[file-name;env hash;cmd;line;arg;s]
108: /// @test header to $fields. waits for header '\' tricks
1.26 paf 109: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
1.21 paf 110: Pool& pool=r.pool();
111:
1.26 paf 112: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.21 paf 113:
1.23 paf 114: const String& script_name=r.absolute(vfile_name.as_string());
115:
116: Hash env(pool);
117: #define PASS(key) \
118: String key(pool); \
119: if(const char *value=SAPI::get_env(pool, #key)) { \
120: key.APPEND_CONST(value); \
121: env.put(String(pool, #key), &key); \
122: }
123: #define INFO(key, value) \
124: String value(pool); \
125: if(r.info.value) { \
126: value.APPEND_CONST(r.info.value); \
127: env.put(String(pool, key), &value); \
128: }
129:
130: // const
131: String gateway_interface(pool, "CGI/1.1");
132: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
133: // from Request.info
134: INFO("DOCUMENT_ROOT", document_root);
135: INFO("PATH_TRANSLATED", path_translated);
136: INFO("SERVER_PROTOCOL", method);
137: INFO("QUERY_STRING", query_string);
138: INFO("REQUEST_URI", uri);
139: INFO("CONTENT_TYPE", content_type);
140: char content_length_cstr[MAX_NUMBER];
141: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
142: String content_length(pool, content_length_cstr);
143: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
144: INFO("HTTP_COOKIE", cookie);
145: INFO("HTTP_USER_AGENT", user_agent);
146: // passing some SAPI:get_env-s
147: PASS(SERVER_NAME);
148: PASS(SERVER_PORT);
149: PASS(HTTP_REFERER);
150: PASS(REMOTE_ADDR);
151: PASS(REMOTE_HOST);
152: PASS(REMOTE_USER);
153: // SCRIPT_NAME
154: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 ! paf 155: #ifdef WIN32
! 156: // WIN32 shell
! 157: PASS(COMSPEC);
! 158: #endif
1.23 paf 159:
1.21 paf 160: if(params->size()>1) {
1.26 paf 161: Value& venv=params->get_no_junction(1, "env must not be code");
1.23 paf 162: if(Hash *user_env=venv.get_hash())
163: user_env->for_each(append_env_pair, &env);
164: else
1.21 paf 165: PTHROW(0, 0,
166: &method_name,
167: "env must be hash");
168: }
169:
170: Array *argv=0;
171: if(params->size()>2) {
172: argv=new(pool) Array(pool, params->size()-2);
173: for(int i=2; i<params->size(); i++)
1.26 paf 174: *argv+=¶ms->get(i).as_string();
1.21 paf 175: }
176:
177: const String in(pool, r.post_data, r.post_size);
178: String out(pool);
1.27 ! paf 179: String& err=*new(pool) String(pool);
1.24 paf 180: int exit_code=pa_exec(script_name, &env, argv,
1.21 paf 181: in, out, err);
182:
183: VFile& self=*static_cast<VFile *>(r.self);
184: // construct with 'out' body and header
185: int delim_size;
186: int pos=out.pos("\n\n", delim_size=2);
187: if(pos<0)
188: pos=out.pos("\r\n\r\n", delim_size=4);
189: if(pos<0) {
1.22 paf 190: delim_size=0; // calm down, compiler
1.21 paf 191: PTHROW(0, 0,
192: &method_name,
1.27 ! paf 193: "output does not contain CGI header; exit code=%d; size=%u; text: \"%s\"",
! 194: exit_code, (uint)out.size(), out.cstr());
1.21 paf 195: }
196:
197: const String& header=out.mid(0, pos);
198: const String& body=out.mid(pos+delim_size, out.size());
199:
200: // body
201: self.set(false/*not tainted*/, body.cstr(String::UL_AS_IS), body.size());
202:
203: // todo header to $fields. waits for header '\' tricks
204:
205: // $exit-code
206: self.fields().put(
207: *new(pool) String(pool, "exit-code"),
208: new(pool) VInt(pool, exit_code));
209:
210: // $stderr
211: if(err.size()) {
212: self.fields().put(
213: *new(pool) String(pool, "stderr"),
214: new(pool) VString(err));
215:
216: SAPI::log(pool, "cgi: %s", err.cstr());
217: }
218: }
219:
1.1 paf 220: // initialize
221:
1.3 paf 222: void initialize_file_class(Pool& pool, VStateless_class& vclass) {
1.1 paf 223: // ^save[file-name]
1.14 paf 224: vclass.add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 225:
226: // ^delete[file-name]
1.14 paf 227: vclass.add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.8 paf 228:
229: // ^find[file-name]
230: // ^find[file-name]{when-not-found}
1.14 paf 231: vclass.add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 232:
233: // ^load[disk-name]
234: // ^load[disk-name;user-name]
1.20 paf 235: vclass.add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.25 paf 236:
237: // ^stat[disk-name]
238: vclass.add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 239:
240: // ^exec[file-name]
241: // ^exec[file-name;env hash]
242: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
243: vclass.add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+5);
1.1 paf 244: }
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