Annotation of parser3/src/classes/file.C, revision 1.31.2.1
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:
1.31.2.1! paf 8: $Id: file.C,v 1.31 2001/04/25 10:25:31 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:
1.31.2.1! paf 19: // defines
! 20:
! 21: #define FILE_CLASS_NAME "file"
! 22:
! 23: // class
1.9 paf 24:
1.31.2.1! paf 25: class MFile : public Methoded {
! 26: public:
! 27: MFile(Pool& pool);
! 28: bool used_directly() { return true; }
! 29: };
1.1 paf 30:
1.31.2.1! paf 31: // consts
! 32:
! 33: const int FIND_MONKEY_MAX_HOPS=10;
1.1 paf 34:
35: // methods
36:
1.26 paf 37: static void _save(Request& r, const String&, MethodParams *params) {
38: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.4 paf 39:
1.7 paf 40: // save
1.18 paf 41: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
1.7 paf 42: }
43:
1.26 paf 44: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 45: Pool& pool=r.pool();
1.26 paf 46: Value& vfile_name=params->get_no_junction(0, "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:
1.26 paf 52: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 53: Pool& pool=r.pool();
1.26 paf 54: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.8 paf 55:
1.18 paf 56: const String &lfile_name=vfile_name.as_string();
1.8 paf 57:
58: // passed file name simply exists in current dir
59: if(file_readable(r.absolute(lfile_name))) {
60: r.write_no_lang(*new(pool) VString(lfile_name));
61: return;
62: }
63:
64: // scan .. dirs for result
1.9 paf 65: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 66: String test_name(pool);
67: for(int j=0; j<i; j++)
68: test_name.APPEND_CONST("../");
1.15 paf 69: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 70: if(file_readable(r.absolute(test_name))) {
71: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
72: return;
73: }
74: }
75:
76: // not found
77: if(params->size()==2) {
1.26 paf 78: Value& not_found_code=params->get_junction(1, "not-found param must be code");
1.8 paf 79: r.write_pass_lang(r.process(not_found_code));
80: }
81: }
82:
1.26 paf 83: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 84: Pool& pool=r.pool();
1.26 paf 85: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.9 paf 86:
1.18 paf 87: const String& lfile_name=vfile_name.as_string();
1.9 paf 88:
1.12 paf 89: void *data; size_t size;
1.9 paf 90: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
91:
1.18 paf 92: char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
1.26 paf 93: :params->get(1).as_string().cstr();
1.10 paf 94:
1.21 paf 95: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.20 paf 96: user_file_name, &r.mime_type_of(user_file_name));
1.9 paf 97: }
98:
1.26 paf 99: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 100: Pool& pool=r.pool();
1.26 paf 101: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.25 paf 102:
103: const String& lfile_name=vfile_name.as_string();
104:
105: size_t size=file_size(r.absolute(lfile_name));
106:
107: static_cast<VFile *>(r.self)->set(true/*tainted*/, 0/*no bytes*/, size);
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: }
1.29 paf 114:
115: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
116: String& string=*static_cast<String *>(value);
117: Hash& hash=*static_cast<Hash *>(info);
118: int colon_pos=string.pos(":", 1);
119: if(colon_pos>0)
1.30 paf 120: hash.put(string.mid(0, colon_pos),
121: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 122: }
1.28 paf 123: /**
124: ^exec[file-name]
125: ^exec[file-name;env hash]
126: ^exec[file-name;env hash;cmd;line;arg;s]
127: @todo fix `` in perl - they produced flipping consoles and no output to perl
128: */
1.26 paf 129: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
1.21 paf 130: Pool& pool=r.pool();
131:
1.26 paf 132: Value& vfile_name=params->get_no_junction(0, "file name must not be code");
1.21 paf 133:
1.23 paf 134: const String& script_name=r.absolute(vfile_name.as_string());
135:
136: Hash env(pool);
137: #define PASS(key) \
138: String key(pool); \
139: if(const char *value=SAPI::get_env(pool, #key)) { \
140: key.APPEND_CONST(value); \
141: env.put(String(pool, #key), &key); \
142: }
143: #define INFO(key, value) \
144: String value(pool); \
145: if(r.info.value) { \
146: value.APPEND_CONST(r.info.value); \
147: env.put(String(pool, key), &value); \
148: }
149:
150: // const
151: String gateway_interface(pool, "CGI/1.1");
152: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
153: // from Request.info
154: INFO("DOCUMENT_ROOT", document_root);
155: INFO("PATH_TRANSLATED", path_translated);
156: INFO("SERVER_PROTOCOL", method);
157: INFO("QUERY_STRING", query_string);
158: INFO("REQUEST_URI", uri);
159: INFO("CONTENT_TYPE", content_type);
160: char content_length_cstr[MAX_NUMBER];
161: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
162: String content_length(pool, content_length_cstr);
163: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
164: INFO("HTTP_COOKIE", cookie);
165: INFO("HTTP_USER_AGENT", user_agent);
166: // passing some SAPI:get_env-s
167: PASS(SERVER_NAME);
168: PASS(SERVER_PORT);
169: PASS(HTTP_REFERER);
170: PASS(REMOTE_ADDR);
171: PASS(REMOTE_HOST);
172: PASS(REMOTE_USER);
173: // SCRIPT_NAME
174: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 175: #ifdef WIN32
176: // WIN32 shell
177: PASS(COMSPEC);
178: #endif
1.23 paf 179:
1.21 paf 180: if(params->size()>1) {
1.26 paf 181: Value& venv=params->get_no_junction(1, "env must not be code");
1.23 paf 182: if(Hash *user_env=venv.get_hash())
183: user_env->for_each(append_env_pair, &env);
184: else
1.21 paf 185: PTHROW(0, 0,
186: &method_name,
187: "env must be hash");
188: }
189:
190: Array *argv=0;
191: if(params->size()>2) {
192: argv=new(pool) Array(pool, params->size()-2);
193: for(int i=2; i<params->size(); i++)
1.26 paf 194: *argv+=¶ms->get(i).as_string();
1.21 paf 195: }
196:
197: const String in(pool, r.post_data, r.post_size);
198: String out(pool);
1.31 paf 199: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
200: //out<<in;
1.27 paf 201: String& err=*new(pool) String(pool);
1.30 paf 202: int exit_code=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 203:
204: VFile& self=*static_cast<VFile *>(r.self);
205: // construct with 'out' body and header
206: int delim_size;
1.30 paf 207: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
208: int pos=out.pos("\r\n\r\n", delim_size=4);
1.29 paf 209: if(pos<0) {
1.30 paf 210: eol_marker="\n"; eol_marker_size=1;
211: pos=out.pos("\n\n", delim_size=2);
1.29 paf 212: }
1.21 paf 213: if(pos<0) {
1.22 paf 214: delim_size=0; // calm down, compiler
1.21 paf 215: PTHROW(0, 0,
216: &method_name,
1.27 paf 217: "output does not contain CGI header; exit code=%d; size=%u; text: \"%s\"",
218: exit_code, (uint)out.size(), out.cstr());
1.21 paf 219: }
220:
221: const String& header=out.mid(0, pos);
222: const String& body=out.mid(pos+delim_size, out.size());
223:
1.30 paf 224: // body
225: self.set(false/*not tainted*/, body.cstr(String::UL_AS_IS), body.size());
226:
227: // header to $fields
1.29 paf 228: {
229: Array rows(pool);
1.30 paf 230: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
1.29 paf 231: rows.for_each(pass_cgi_header_attribute, &self.fields());
232: }
1.21 paf 233:
234: // $exit-code
235: self.fields().put(
236: *new(pool) String(pool, "exit-code"),
237: new(pool) VInt(pool, exit_code));
238:
239: // $stderr
240: if(err.size()) {
241: self.fields().put(
242: *new(pool) String(pool, "stderr"),
243: new(pool) VString(err));
244:
245: SAPI::log(pool, "cgi: %s", err.cstr());
246: }
247: }
248:
1.31.2.1! paf 249: // constructor
! 250:
! 251: MFile::MFile(Pool& pool, VStateless_class& vclass) {
! 252: set_name(NEW String(pool, FILE_CLASS_NAME));
! 253:
1.1 paf 254:
255: // ^save[file-name]
1.31.2.1! paf 256: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 257:
258: // ^delete[file-name]
1.31.2.1! paf 259: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.8 paf 260:
261: // ^find[file-name]
262: // ^find[file-name]{when-not-found}
1.31.2.1! paf 263: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 264:
265: // ^load[disk-name]
266: // ^load[disk-name;user-name]
1.31.2.1! paf 267: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.25 paf 268:
269: // ^stat[disk-name]
1.31.2.1! paf 270: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 271:
272: // ^exec[file-name]
273: // ^exec[file-name;env hash]
274: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.31.2.1! paf 275: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+5);
! 276: }
! 277:
! 278: // global variable
! 279:
! 280: Methoded *file_class;
! 281:
! 282: // creator
! 283:
! 284: Methoded *MFile_create(Pool& pool) {
! 285: return new(pool) MFile(pool);
1.1 paf 286: }
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