Annotation of parser3/src/classes/file.C, revision 1.23
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:
1.23 ! paf 8: $Id: file.C,v 1.22 2001/04/09 13:21:08 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"
1.1 paf 16:
1.9 paf 17: // consts
18:
19: const int FIND_MONKEY_MAX_HOPS=10;
20:
1.1 paf 21: // global var
22:
1.3 paf 23: VStateless_class *file_class;
1.1 paf 24:
25: // methods
26:
27: static void _save(Request& r, const String& method_name, Array *params) {
1.4 paf 28: Pool& pool=r.pool();
1.8 paf 29: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.1 paf 30: // forcing
1.4 paf 31: // ^save[this body type]
1.8 paf 32: r.fail_if_junction_(true, vfile_name,
1.19 paf 33: method_name, "file name must not be code");
1.4 paf 34:
1.7 paf 35: // save
1.18 paf 36: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
1.7 paf 37: }
38:
39: static void _delete(Request& r, const String& method_name, Array *params) {
40: Pool& pool=r.pool();
1.8 paf 41: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.7 paf 42: // forcing
43: // ^delete[this body type]
1.8 paf 44: r.fail_if_junction_(true, vfile_name,
1.19 paf 45: method_name, "file name must not be code");
1.7 paf 46:
47: // unlink
1.18 paf 48: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 49: }
50:
1.8 paf 51: static void _find(Request& r, const String& method_name, Array *params) {
52: Pool& pool=r.pool();
53: Value& vfile_name=*static_cast<Value *>(params->get(0));
54: // forcing
55: // ^delete[this body type]
56: r.fail_if_junction_(true, vfile_name,
1.19 paf 57: method_name, "file name must not be code");
1.8 paf 58:
1.18 paf 59: const String &lfile_name=vfile_name.as_string();
1.8 paf 60:
61: // passed file name simply exists in current dir
62: if(file_readable(r.absolute(lfile_name))) {
63: r.write_no_lang(*new(pool) VString(lfile_name));
64: return;
65: }
66:
67: // scan .. dirs for result
1.9 paf 68: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 69: String test_name(pool);
70: for(int j=0; j<i; j++)
71: test_name.APPEND_CONST("../");
1.15 paf 72: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 73: if(file_readable(r.absolute(test_name))) {
74: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
75: return;
76: }
77: }
78:
79: // not found
80: if(params->size()==2) {
81: // forcing ..{this body type}
82: Value& not_found_code=*static_cast<Value *>(params->get(1));
83: r.fail_if_junction_(false, not_found_code,
1.19 paf 84: method_name, "not-found param must be code");
1.8 paf 85: r.write_pass_lang(r.process(not_found_code));
86: }
87: }
88:
1.9 paf 89: static void _load(Request& r, const String& method_name, Array *params) {
90: Pool& pool=r.pool();
91: Value& vfile_name=*static_cast<Value *>(params->get(0));
92:
1.10 paf 93: // forcing ^load[this body type]
1.9 paf 94: r.fail_if_junction_(true, vfile_name,
1.19 paf 95: method_name, "file name must not be code");
1.9 paf 96:
1.18 paf 97: const String& lfile_name=vfile_name.as_string();
1.9 paf 98:
1.12 paf 99: void *data; size_t size;
1.9 paf 100: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
101:
1.18 paf 102: char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
1.9 paf 103: :static_cast<Value *>(params->get(1))->as_string().cstr();
1.10 paf 104:
1.21 paf 105: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.20 paf 106: user_file_name, &r.mime_type_of(user_file_name));
1.9 paf 107: }
108:
1.22 paf 109: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
110: Hash& hash=*static_cast<Hash *>(info);
111: hash.put(key, &static_cast<Value *>(value)->as_string());
112: }
1.21 paf 113: /// ^exec[file-name]
114: /// ^exec[file-name;env hash]
115: /// ^exec[file-name;env hash;cmd;line;arg;s]
116: /// @test header to $fields. waits for header '\' tricks
117: static void _cgi(Request& r, const String& method_name, Array *params) {
118: Pool& pool=r.pool();
119:
120: Value& vfile_name=*static_cast<Value *>(params->get(0));
121: // forcing [this param type]
122: r.fail_if_junction_(true, vfile_name,
123: method_name, "file name must not be code");
124:
1.23 ! paf 125: const String& script_name=r.absolute(vfile_name.as_string());
! 126:
! 127: Hash env(pool);
! 128: #define PASS(key) \
! 129: String key(pool); \
! 130: if(const char *value=SAPI::get_env(pool, #key)) { \
! 131: key.APPEND_CONST(value); \
! 132: env.put(String(pool, #key), &key); \
! 133: }
! 134: #define INFO(key, value) \
! 135: String value(pool); \
! 136: if(r.info.value) { \
! 137: value.APPEND_CONST(r.info.value); \
! 138: env.put(String(pool, key), &value); \
! 139: }
! 140:
! 141: // const
! 142: String gateway_interface(pool, "CGI/1.1");
! 143: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
! 144: // from Request.info
! 145: INFO("DOCUMENT_ROOT", document_root);
! 146: INFO("PATH_TRANSLATED", path_translated);
! 147: INFO("SERVER_PROTOCOL", method);
! 148: INFO("QUERY_STRING", query_string);
! 149: INFO("REQUEST_URI", uri);
! 150: INFO("CONTENT_TYPE", content_type);
! 151: char content_length_cstr[MAX_NUMBER];
! 152: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
! 153: String content_length(pool, content_length_cstr);
! 154: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
! 155: INFO("HTTP_COOKIE", cookie);
! 156: INFO("HTTP_USER_AGENT", user_agent);
! 157: // passing some SAPI:get_env-s
! 158: PASS(SERVER_NAME);
! 159: PASS(SERVER_PORT);
! 160: PASS(HTTP_REFERER);
! 161: PASS(REMOTE_ADDR);
! 162: PASS(REMOTE_HOST);
! 163: PASS(REMOTE_USER);
! 164: // SCRIPT_NAME
! 165: env.put(String(pool, "SCRIPT_NAME"), &script_name);
! 166:
1.21 paf 167: if(params->size()>1) {
168: Value& venv=*static_cast<Value *>(params->get(1));
169: // forcing [this param type]
170: r.fail_if_junction_(true, venv,
171: method_name, "env must not be code");
1.23 ! paf 172: if(Hash *user_env=venv.get_hash())
! 173: user_env->for_each(append_env_pair, &env);
! 174: else
1.21 paf 175: PTHROW(0, 0,
176: &method_name,
177: "env must be hash");
178: }
179:
180: Array *argv=0;
181: if(params->size()>2) {
182: argv=new(pool) Array(pool, params->size()-2);
183: for(int i=2; i<params->size(); i++)
184: *argv+=&static_cast<Value *>(params->get(i))->as_string();
185: }
186:
187: const String in(pool, r.post_data, r.post_size);
188: String out(pool);
189: String err(pool);
1.23 ! paf 190: int exit_code=SAPI::execute(script_name, &env, argv,
1.21 paf 191: in, out, err);
192:
193: VFile& self=*static_cast<VFile *>(r.self);
194: // construct with 'out' body and header
195: int delim_size;
196: int pos=out.pos("\n\n", delim_size=2);
197: if(pos<0)
198: pos=out.pos("\r\n\r\n", delim_size=4);
199: if(pos<0) {
1.22 paf 200: delim_size=0; // calm down, compiler
1.21 paf 201: PTHROW(0, 0,
202: &method_name,
203: "output does not contain CGI header");
204: }
205:
206: const String& header=out.mid(0, pos);
207: const String& body=out.mid(pos+delim_size, out.size());
208:
209: // body
210: self.set(false/*not tainted*/, body.cstr(String::UL_AS_IS), body.size());
211:
212: // todo header to $fields. waits for header '\' tricks
213:
214: // $exit-code
215: self.fields().put(
216: *new(pool) String(pool, "exit-code"),
217: new(pool) VInt(pool, exit_code));
218:
219: // $stderr
220: if(err.size()) {
221: self.fields().put(
222: *new(pool) String(pool, "stderr"),
223: new(pool) VString(err));
224:
225: SAPI::log(pool, "cgi: %s", err.cstr());
226: }
227: }
228:
1.1 paf 229: // initialize
230:
1.3 paf 231: void initialize_file_class(Pool& pool, VStateless_class& vclass) {
1.1 paf 232: // ^save[file-name]
1.14 paf 233: vclass.add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 234:
235: // ^delete[file-name]
1.14 paf 236: vclass.add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.8 paf 237:
238: // ^find[file-name]
239: // ^find[file-name]{when-not-found}
1.14 paf 240: vclass.add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 241:
242: // ^load[disk-name]
243: // ^load[disk-name;user-name]
1.20 paf 244: vclass.add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.21 paf 245:
246: // ^exec[file-name]
247: // ^exec[file-name;env hash]
248: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
249: vclass.add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+5);
1.1 paf 250: }
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