Annotation of parser3/src/classes/file.C, revision 1.24
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:
1.24 ! paf 8: $Id: file.C,v 1.23 2001/04/09 14:01:54 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:
28: static void _save(Request& r, const String& method_name, Array *params) {
1.4 paf 29: Pool& pool=r.pool();
1.8 paf 30: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.1 paf 31: // forcing
1.4 paf 32: // ^save[this body type]
1.8 paf 33: r.fail_if_junction_(true, vfile_name,
1.19 paf 34: method_name, "file name must not be code");
1.4 paf 35:
1.7 paf 36: // save
1.18 paf 37: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
1.7 paf 38: }
39:
40: static void _delete(Request& r, const String& method_name, Array *params) {
41: Pool& pool=r.pool();
1.8 paf 42: Value& vfile_name=*static_cast<Value *>(params->get(0));
1.7 paf 43: // forcing
44: // ^delete[this body type]
1.8 paf 45: r.fail_if_junction_(true, vfile_name,
1.19 paf 46: method_name, "file name must not be code");
1.7 paf 47:
48: // unlink
1.18 paf 49: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 50: }
51:
1.8 paf 52: static void _find(Request& r, const String& method_name, Array *params) {
53: Pool& pool=r.pool();
54: Value& vfile_name=*static_cast<Value *>(params->get(0));
55: // forcing
56: // ^delete[this body type]
57: r.fail_if_junction_(true, vfile_name,
1.19 paf 58: method_name, "file name must not be code");
1.8 paf 59:
1.18 paf 60: const String &lfile_name=vfile_name.as_string();
1.8 paf 61:
62: // passed file name simply exists in current dir
63: if(file_readable(r.absolute(lfile_name))) {
64: r.write_no_lang(*new(pool) VString(lfile_name));
65: return;
66: }
67:
68: // scan .. dirs for result
1.9 paf 69: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 70: String test_name(pool);
71: for(int j=0; j<i; j++)
72: test_name.APPEND_CONST("../");
1.15 paf 73: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 74: if(file_readable(r.absolute(test_name))) {
75: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
76: return;
77: }
78: }
79:
80: // not found
81: if(params->size()==2) {
82: // forcing ..{this body type}
83: Value& not_found_code=*static_cast<Value *>(params->get(1));
84: r.fail_if_junction_(false, not_found_code,
1.19 paf 85: method_name, "not-found param must be code");
1.8 paf 86: r.write_pass_lang(r.process(not_found_code));
87: }
88: }
89:
1.9 paf 90: static void _load(Request& r, const String& method_name, Array *params) {
91: Pool& pool=r.pool();
92: Value& vfile_name=*static_cast<Value *>(params->get(0));
93:
1.10 paf 94: // forcing ^load[this body type]
1.9 paf 95: r.fail_if_junction_(true, vfile_name,
1.19 paf 96: method_name, "file name must not be code");
1.9 paf 97:
1.18 paf 98: const String& lfile_name=vfile_name.as_string();
1.9 paf 99:
1.12 paf 100: void *data; size_t size;
1.9 paf 101: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
102:
1.18 paf 103: char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
1.9 paf 104: :static_cast<Value *>(params->get(1))->as_string().cstr();
1.10 paf 105:
1.21 paf 106: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.20 paf 107: user_file_name, &r.mime_type_of(user_file_name));
1.9 paf 108: }
109:
1.22 paf 110: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
111: Hash& hash=*static_cast<Hash *>(info);
112: hash.put(key, &static_cast<Value *>(value)->as_string());
113: }
1.21 paf 114: /// ^exec[file-name]
115: /// ^exec[file-name;env hash]
116: /// ^exec[file-name;env hash;cmd;line;arg;s]
117: /// @test header to $fields. waits for header '\' tricks
118: static void _cgi(Request& r, const String& method_name, Array *params) {
119: Pool& pool=r.pool();
120:
121: Value& vfile_name=*static_cast<Value *>(params->get(0));
122: // forcing [this param type]
123: r.fail_if_junction_(true, vfile_name,
124: method_name, "file name must not be code");
125:
1.23 paf 126: const String& script_name=r.absolute(vfile_name.as_string());
127:
128: Hash env(pool);
129: #define PASS(key) \
130: String key(pool); \
131: if(const char *value=SAPI::get_env(pool, #key)) { \
132: key.APPEND_CONST(value); \
133: env.put(String(pool, #key), &key); \
134: }
135: #define INFO(key, value) \
136: String value(pool); \
137: if(r.info.value) { \
138: value.APPEND_CONST(r.info.value); \
139: env.put(String(pool, key), &value); \
140: }
141:
142: // const
143: String gateway_interface(pool, "CGI/1.1");
144: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
145: // from Request.info
146: INFO("DOCUMENT_ROOT", document_root);
147: INFO("PATH_TRANSLATED", path_translated);
148: INFO("SERVER_PROTOCOL", method);
149: INFO("QUERY_STRING", query_string);
150: INFO("REQUEST_URI", uri);
151: INFO("CONTENT_TYPE", content_type);
152: char content_length_cstr[MAX_NUMBER];
153: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
154: String content_length(pool, content_length_cstr);
155: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
156: INFO("HTTP_COOKIE", cookie);
157: INFO("HTTP_USER_AGENT", user_agent);
158: // passing some SAPI:get_env-s
159: PASS(SERVER_NAME);
160: PASS(SERVER_PORT);
161: PASS(HTTP_REFERER);
162: PASS(REMOTE_ADDR);
163: PASS(REMOTE_HOST);
164: PASS(REMOTE_USER);
165: // SCRIPT_NAME
166: env.put(String(pool, "SCRIPT_NAME"), &script_name);
167:
1.21 paf 168: if(params->size()>1) {
169: Value& venv=*static_cast<Value *>(params->get(1));
170: // forcing [this param type]
171: r.fail_if_junction_(true, venv,
172: method_name, "env must not be code");
1.23 paf 173: if(Hash *user_env=venv.get_hash())
174: user_env->for_each(append_env_pair, &env);
175: else
1.21 paf 176: PTHROW(0, 0,
177: &method_name,
178: "env must be hash");
179: }
180:
181: Array *argv=0;
182: if(params->size()>2) {
183: argv=new(pool) Array(pool, params->size()-2);
184: for(int i=2; i<params->size(); i++)
185: *argv+=&static_cast<Value *>(params->get(i))->as_string();
186: }
187:
188: const String in(pool, r.post_data, r.post_size);
189: String out(pool);
190: String err(pool);
1.24 ! paf 191: int exit_code=pa_exec(script_name, &env, argv,
1.21 paf 192: in, out, err);
193:
194: VFile& self=*static_cast<VFile *>(r.self);
195: // construct with 'out' body and header
196: int delim_size;
197: int pos=out.pos("\n\n", delim_size=2);
198: if(pos<0)
199: pos=out.pos("\r\n\r\n", delim_size=4);
200: if(pos<0) {
1.22 paf 201: delim_size=0; // calm down, compiler
1.21 paf 202: PTHROW(0, 0,
203: &method_name,
204: "output does not contain CGI header");
205: }
206:
207: const String& header=out.mid(0, pos);
208: const String& body=out.mid(pos+delim_size, out.size());
209:
210: // body
211: self.set(false/*not tainted*/, body.cstr(String::UL_AS_IS), body.size());
212:
213: // todo header to $fields. waits for header '\' tricks
214:
215: // $exit-code
216: self.fields().put(
217: *new(pool) String(pool, "exit-code"),
218: new(pool) VInt(pool, exit_code));
219:
220: // $stderr
221: if(err.size()) {
222: self.fields().put(
223: *new(pool) String(pool, "stderr"),
224: new(pool) VString(err));
225:
226: SAPI::log(pool, "cgi: %s", err.cstr());
227: }
228: }
229:
1.1 paf 230: // initialize
231:
1.3 paf 232: void initialize_file_class(Pool& pool, VStateless_class& vclass) {
1.1 paf 233: // ^save[file-name]
1.14 paf 234: vclass.add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 235:
236: // ^delete[file-name]
1.14 paf 237: vclass.add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.8 paf 238:
239: // ^find[file-name]
240: // ^find[file-name]{when-not-found}
1.14 paf 241: vclass.add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 242:
243: // ^load[disk-name]
244: // ^load[disk-name;user-name]
1.20 paf 245: vclass.add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.21 paf 246:
247: // ^exec[file-name]
248: // ^exec[file-name;env hash]
249: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
250: vclass.add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+5);
1.1 paf 251: }
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