Annotation of parser3/src/classes/file.C, revision 1.46
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:
1.46 ! parser 8: $Id: file.C,v 1.45 2001/07/24 09:45:27 parser Exp $
1.1 paf 9: */
1.46 ! parser 10: static const char *RCSId="$Id: file.C,v 1.45 2001/07/24 09:45:27 parser Exp $";
1.1 paf 11:
1.35 paf 12: #include "classes.h"
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vfile.h"
1.11 paf 15: #include "pa_table.h"
1.21 paf 16: #include "pa_vint.h"
1.24 paf 17: #include "pa_exec.h"
1.40 parser 18: #include "pa_vdate.h"
1.1 paf 19:
1.33 paf 20: // consts
21:
1.32 paf 22: // defines
23:
24: #define FILE_CLASS_NAME "file"
25:
26: // class
27:
28: class MFile : public Methoded {
29: public: // VStateless_class
30:
31: Value *create_new_value(Pool& pool) { return new(pool) VFile(pool); }
32:
1.33 paf 33: public: // Methoded
34: bool used_directly() { return true; }
35:
1.32 paf 36: public:
37: MFile(Pool& pool);
1.33 paf 38:
1.32 paf 39: };
40:
1.9 paf 41: // consts
42:
43: const int FIND_MONKEY_MAX_HOPS=10;
44:
1.1 paf 45: // methods
46:
1.26 paf 47: static void _save(Request& r, const String&, MethodParams *params) {
1.39 parser 48: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.4 paf 49:
1.7 paf 50: // save
1.18 paf 51: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
1.7 paf 52: }
53:
1.26 paf 54: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 55: Pool& pool=r.pool();
1.39 parser 56: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.7 paf 57:
58: // unlink
1.18 paf 59: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 60: }
61:
1.45 parser 62: static void _move(Request& r, const String&, MethodParams *params) {
63: Pool& pool=r.pool();
64: Value& vfrom_file_name=params->as_no_junction(0, "from file name must not be code");
65: Value& vto_file_name=params->as_no_junction(1, "to file name must not be code");
66:
67: // unlink
68: file_move(pool,
69: r.absolute(vfrom_file_name.as_string()),
70: r.absolute(vto_file_name.as_string()));
71: }
72:
1.26 paf 73: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 74: Pool& pool=r.pool();
1.39 parser 75: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.8 paf 76:
1.18 paf 77: const String &lfile_name=vfile_name.as_string();
1.8 paf 78:
79: // passed file name simply exists in current dir
80: if(file_readable(r.absolute(lfile_name))) {
81: r.write_no_lang(*new(pool) VString(lfile_name));
82: return;
83: }
84:
85: // scan .. dirs for result
1.9 paf 86: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 87: String test_name(pool);
88: for(int j=0; j<i; j++)
89: test_name.APPEND_CONST("../");
1.15 paf 90: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 91: if(file_readable(r.absolute(test_name))) {
92: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
93: return;
94: }
95: }
96:
97: // not found
98: if(params->size()==2) {
1.39 parser 99: Value& not_found_code=params->as_junction(1, "not-found param must be code");
1.8 paf 100: r.write_pass_lang(r.process(not_found_code));
101: }
102: }
103:
1.26 paf 104: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 105: Pool& pool=r.pool();
1.39 parser 106: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.9 paf 107:
1.18 paf 108: const String& lfile_name=vfile_name.as_string();
1.9 paf 109:
1.12 paf 110: void *data; size_t size;
1.9 paf 111: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
112:
1.18 paf 113: char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
1.26 paf 114: :params->get(1).as_string().cstr();
1.10 paf 115:
1.21 paf 116: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.20 paf 117: user_file_name, &r.mime_type_of(user_file_name));
1.9 paf 118: }
119:
1.26 paf 120: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 121: Pool& pool=r.pool();
1.39 parser 122: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.25 paf 123:
124: const String& lfile_name=vfile_name.as_string();
125:
1.40 parser 126: size_t size;
127: time_t atime, mtime, ctime;
128: file_stat(r.absolute(lfile_name),
129: size,
130: atime, mtime, ctime);
1.25 paf 131:
1.40 parser 132: VFile& vfile=*static_cast<VFile *>(r.self);
133: vfile.set(true/*tainted*/, 0/*no bytes*/, size);
134: Hash& ff=vfile.fields();
135: ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime));
136: ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime));
137: ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime));
1.25 paf 138: }
139:
1.22 paf 140: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
141: Hash& hash=*static_cast<Hash *>(info);
142: hash.put(key, &static_cast<Value *>(value)->as_string());
143: }
1.29 paf 144:
145: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
146: String& string=*static_cast<String *>(value);
147: Hash& hash=*static_cast<Hash *>(info);
148: int colon_pos=string.pos(":", 1);
149: if(colon_pos>0)
1.30 paf 150: hash.put(string.mid(0, colon_pos),
151: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 152: }
1.36 paf 153: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.41 parser 154: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
155: bool cgi) {
1.21 paf 156: Pool& pool=r.pool();
157:
1.39 parser 158: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 159:
1.23 paf 160: const String& script_name=r.absolute(vfile_name.as_string());
161:
162: Hash env(pool);
163: #define PASS(key) \
164: String key(pool); \
165: if(const char *value=SAPI::get_env(pool, #key)) { \
166: key.APPEND_CONST(value); \
167: env.put(String(pool, #key), &key); \
168: }
169: #define INFO(key, value) \
170: String value(pool); \
171: if(r.info.value) { \
172: value.APPEND_CONST(r.info.value); \
173: env.put(String(pool, key), &value); \
174: }
175:
176: // const
177: String gateway_interface(pool, "CGI/1.1");
178: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
179: // from Request.info
180: INFO("DOCUMENT_ROOT", document_root);
181: INFO("PATH_TRANSLATED", path_translated);
182: INFO("SERVER_PROTOCOL", method);
183: INFO("QUERY_STRING", query_string);
184: INFO("REQUEST_URI", uri);
185: INFO("CONTENT_TYPE", content_type);
186: char content_length_cstr[MAX_NUMBER];
187: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
188: String content_length(pool, content_length_cstr);
189: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
190: INFO("HTTP_COOKIE", cookie);
191: INFO("HTTP_USER_AGENT", user_agent);
192: // passing some SAPI:get_env-s
193: PASS(SERVER_NAME);
194: PASS(SERVER_PORT);
195: PASS(HTTP_REFERER);
196: PASS(REMOTE_ADDR);
197: PASS(REMOTE_HOST);
198: PASS(REMOTE_USER);
199: // SCRIPT_NAME
200: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 201: #ifdef WIN32
202: // WIN32 shell
203: PASS(COMSPEC);
204: #endif
1.23 paf 205:
1.21 paf 206: if(params->size()>1) {
1.39 parser 207: Value& venv=params->as_no_junction(1, "env must not be code");
1.23 paf 208: if(Hash *user_env=venv.get_hash())
209: user_env->for_each(append_env_pair, &env);
1.21 paf 210: }
211:
212: Array *argv=0;
213: if(params->size()>2) {
214: argv=new(pool) Array(pool, params->size()-2);
215: for(int i=2; i<params->size(); i++)
1.26 paf 216: *argv+=¶ms->get(i).as_string();
1.21 paf 217: }
218:
219: const String in(pool, r.post_data, r.post_size);
220: String out(pool);
1.31 paf 221: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
222: //out<<in;
1.27 paf 223: String& err=*new(pool) String(pool);
1.42 parser 224: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 225:
226: VFile& self=*static_cast<VFile *>(r.self);
227:
1.41 parser 228: const String *body=&out; // ^file:exec
229: if(cgi) { // ^file:cgi
230: // construct with 'out' body and header
231: int delim_size;
232: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
233: int pos=out.pos("\r\n\r\n", delim_size=4);
234: if(pos<0) {
235: eol_marker="\n"; eol_marker_size=1;
236: pos=out.pos("\n\n", delim_size=2);
237: }
238: if(pos<0) {
239: delim_size=0; // calm down, compiler
240: PTHROW(0, 0,
241: &method_name,
1.46 ! parser 242: "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"",
! 243: status,
! 244: (uint)out.size(), out.cstr(),
! 245: (uint)err.size(), err.cstr());
1.41 parser 246: }
1.21 paf 247:
1.41 parser 248: const String& header=out.mid(0, pos);
249: body=&out.mid(pos+delim_size, out.size());
1.30 paf 250:
1.41 parser 251: // header to $fields
252: {
253: Array rows(pool);
254: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
255: rows.for_each(pass_cgi_header_attribute, &self.fields());
256: }
1.29 paf 257: }
1.41 parser 258: // body
259: self.set(false/*not tainted*/, body->cstr(String::UL_AS_IS), body->size());
1.21 paf 260:
1.42 parser 261: // $status
1.21 paf 262: self.fields().put(
1.42 parser 263: *new(pool) String(pool, "status"),
264: new(pool) VInt(pool, status));
1.21 paf 265:
266: // $stderr
267: if(err.size()) {
268: self.fields().put(
269: *new(pool) String(pool, "stderr"),
270: new(pool) VString(err));
271:
1.44 parser 272: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 273: }
274: }
1.41 parser 275: static void _exec(Request& r, const String& method_name, MethodParams *params) {
276: _exec_cgi(r, method_name, params, false);
277: }
278: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
279: _exec_cgi(r, method_name, params, true);
280: }
281:
1.21 paf 282:
1.32 paf 283: // constructor
284:
285: MFile::MFile(Pool& apool) : Methoded(apool) {
286: set_name(*NEW String(pool(), FILE_CLASS_NAME));
287:
1.1 paf 288:
289: // ^save[file-name]
1.32 paf 290: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 291:
292: // ^delete[file-name]
1.32 paf 293: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 294:
295: // ^move[from-file-name;to-file-name]
296: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 297:
298: // ^find[file-name]
299: // ^find[file-name]{when-not-found}
1.32 paf 300: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 301:
302: // ^load[disk-name]
303: // ^load[disk-name;user-name]
1.32 paf 304: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.25 paf 305:
306: // ^stat[disk-name]
1.32 paf 307: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 308:
1.36 paf 309: // ^cgi[file-name]
310: // ^cgi[file-name;env hash]
311: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 312: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
313:
314: // ^exec[file-name]
315: // ^exec[file-name;env hash]
316: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
317: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.32 paf 318: }
319:
320: // global variable
321:
322: Methoded *file_class;
323:
324: // creator
325:
326: Methoded *MFile_create(Pool& pool) {
327: return file_class=new(pool) MFile(pool);
1.1 paf 328: }
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