Annotation of parser3/src/classes/file.C, revision 1.44
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:
1.44 ! parser 8: $Id: file.C,v 1.43 2001/07/18 16:39:25 parser Exp $
1.1 paf 9: */
1.44 ! parser 10: static const char *RCSId="$Id: file.C,v 1.43 2001/07/18 16:39:25 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:
1.26 paf 62: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 63: Pool& pool=r.pool();
1.39 parser 64: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.8 paf 65:
1.18 paf 66: const String &lfile_name=vfile_name.as_string();
1.8 paf 67:
68: // passed file name simply exists in current dir
69: if(file_readable(r.absolute(lfile_name))) {
70: r.write_no_lang(*new(pool) VString(lfile_name));
71: return;
72: }
73:
74: // scan .. dirs for result
1.9 paf 75: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 76: String test_name(pool);
77: for(int j=0; j<i; j++)
78: test_name.APPEND_CONST("../");
1.15 paf 79: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 80: if(file_readable(r.absolute(test_name))) {
81: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
82: return;
83: }
84: }
85:
86: // not found
87: if(params->size()==2) {
1.39 parser 88: Value& not_found_code=params->as_junction(1, "not-found param must be code");
1.8 paf 89: r.write_pass_lang(r.process(not_found_code));
90: }
91: }
92:
1.26 paf 93: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 94: Pool& pool=r.pool();
1.39 parser 95: Value& vfile_name=params->as_no_junction(0, "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)
1.26 paf 103: :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:
1.26 paf 109: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 110: Pool& pool=r.pool();
1.39 parser 111: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.25 paf 112:
113: const String& lfile_name=vfile_name.as_string();
114:
1.40 parser 115: size_t size;
116: time_t atime, mtime, ctime;
117: file_stat(r.absolute(lfile_name),
118: size,
119: atime, mtime, ctime);
1.25 paf 120:
1.40 parser 121: VFile& vfile=*static_cast<VFile *>(r.self);
122: vfile.set(true/*tainted*/, 0/*no bytes*/, size);
123: Hash& ff=vfile.fields();
124: ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime));
125: ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime));
126: ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime));
1.25 paf 127: }
128:
1.22 paf 129: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
130: Hash& hash=*static_cast<Hash *>(info);
131: hash.put(key, &static_cast<Value *>(value)->as_string());
132: }
1.29 paf 133:
134: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
135: String& string=*static_cast<String *>(value);
136: Hash& hash=*static_cast<Hash *>(info);
137: int colon_pos=string.pos(":", 1);
138: if(colon_pos>0)
1.30 paf 139: hash.put(string.mid(0, colon_pos),
140: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 141: }
1.36 paf 142: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.41 parser 143: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
144: bool cgi) {
1.21 paf 145: Pool& pool=r.pool();
146:
1.39 parser 147: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 148:
1.23 paf 149: const String& script_name=r.absolute(vfile_name.as_string());
150:
151: Hash env(pool);
152: #define PASS(key) \
153: String key(pool); \
154: if(const char *value=SAPI::get_env(pool, #key)) { \
155: key.APPEND_CONST(value); \
156: env.put(String(pool, #key), &key); \
157: }
158: #define INFO(key, value) \
159: String value(pool); \
160: if(r.info.value) { \
161: value.APPEND_CONST(r.info.value); \
162: env.put(String(pool, key), &value); \
163: }
164:
165: // const
166: String gateway_interface(pool, "CGI/1.1");
167: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
168: // from Request.info
169: INFO("DOCUMENT_ROOT", document_root);
170: INFO("PATH_TRANSLATED", path_translated);
171: INFO("SERVER_PROTOCOL", method);
172: INFO("QUERY_STRING", query_string);
173: INFO("REQUEST_URI", uri);
174: INFO("CONTENT_TYPE", content_type);
175: char content_length_cstr[MAX_NUMBER];
176: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
177: String content_length(pool, content_length_cstr);
178: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
179: INFO("HTTP_COOKIE", cookie);
180: INFO("HTTP_USER_AGENT", user_agent);
181: // passing some SAPI:get_env-s
182: PASS(SERVER_NAME);
183: PASS(SERVER_PORT);
184: PASS(HTTP_REFERER);
185: PASS(REMOTE_ADDR);
186: PASS(REMOTE_HOST);
187: PASS(REMOTE_USER);
188: // SCRIPT_NAME
189: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 190: #ifdef WIN32
191: // WIN32 shell
192: PASS(COMSPEC);
193: #endif
1.23 paf 194:
1.21 paf 195: if(params->size()>1) {
1.39 parser 196: Value& venv=params->as_no_junction(1, "env must not be code");
1.23 paf 197: if(Hash *user_env=venv.get_hash())
198: user_env->for_each(append_env_pair, &env);
1.21 paf 199: }
200:
201: Array *argv=0;
202: if(params->size()>2) {
203: argv=new(pool) Array(pool, params->size()-2);
204: for(int i=2; i<params->size(); i++)
1.26 paf 205: *argv+=¶ms->get(i).as_string();
1.21 paf 206: }
207:
208: const String in(pool, r.post_data, r.post_size);
209: String out(pool);
1.31 paf 210: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
211: //out<<in;
1.27 paf 212: String& err=*new(pool) String(pool);
1.42 parser 213: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 214:
215: VFile& self=*static_cast<VFile *>(r.self);
216:
1.41 parser 217: const String *body=&out; // ^file:exec
218: if(cgi) { // ^file:cgi
219: // construct with 'out' body and header
220: int delim_size;
221: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
222: int pos=out.pos("\r\n\r\n", delim_size=4);
223: if(pos<0) {
224: eol_marker="\n"; eol_marker_size=1;
225: pos=out.pos("\n\n", delim_size=2);
226: }
227: if(pos<0) {
228: delim_size=0; // calm down, compiler
229: PTHROW(0, 0,
230: &method_name,
231: "output does not contain CGI header; exit code=%d; size=%u; text: \"%s\"",
1.42 parser 232: status, (uint)out.size(), out.cstr());
1.41 parser 233: }
1.21 paf 234:
1.41 parser 235: const String& header=out.mid(0, pos);
236: body=&out.mid(pos+delim_size, out.size());
1.30 paf 237:
1.41 parser 238: // header to $fields
239: {
240: Array rows(pool);
241: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
242: rows.for_each(pass_cgi_header_attribute, &self.fields());
243: }
1.29 paf 244: }
1.41 parser 245: // body
246: self.set(false/*not tainted*/, body->cstr(String::UL_AS_IS), body->size());
1.21 paf 247:
1.42 parser 248: // $status
1.21 paf 249: self.fields().put(
1.42 parser 250: *new(pool) String(pool, "status"),
251: new(pool) VInt(pool, status));
1.21 paf 252:
253: // $stderr
254: if(err.size()) {
255: self.fields().put(
256: *new(pool) String(pool, "stderr"),
257: new(pool) VString(err));
258:
1.44 ! parser 259: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 260: }
261: }
1.41 parser 262: static void _exec(Request& r, const String& method_name, MethodParams *params) {
263: _exec_cgi(r, method_name, params, false);
264: }
265: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
266: _exec_cgi(r, method_name, params, true);
267: }
268:
1.21 paf 269:
1.32 paf 270: // constructor
271:
272: MFile::MFile(Pool& apool) : Methoded(apool) {
273: set_name(*NEW String(pool(), FILE_CLASS_NAME));
274:
1.1 paf 275:
276: // ^save[file-name]
1.32 paf 277: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 278:
279: // ^delete[file-name]
1.32 paf 280: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.8 paf 281:
282: // ^find[file-name]
283: // ^find[file-name]{when-not-found}
1.32 paf 284: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 285:
286: // ^load[disk-name]
287: // ^load[disk-name;user-name]
1.32 paf 288: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.25 paf 289:
290: // ^stat[disk-name]
1.32 paf 291: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 292:
1.36 paf 293: // ^cgi[file-name]
294: // ^cgi[file-name;env hash]
295: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 296: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
297:
298: // ^exec[file-name]
299: // ^exec[file-name;env hash]
300: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
301: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.32 paf 302: }
303:
304: // global variable
305:
306: Methoded *file_class;
307:
308: // creator
309:
310: Methoded *MFile_create(Pool& pool) {
311: return file_class=new(pool) MFile(pool);
1.1 paf 312: }
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