Annotation of parser3/src/classes/file.C, revision 1.56
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)
1.55 parser 5: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.17 paf 6:
1.56 ! parser 7: $Id: file.C,v 1.55 2001/09/26 10:32:25 parser Exp $
1.1 paf 8: */
1.47 parser 9:
10: #include "pa_config_includes.h"
11:
12: #include "pcre.h"
1.1 paf 13:
1.35 paf 14: #include "classes.h"
1.1 paf 15: #include "pa_request.h"
16: #include "pa_vfile.h"
1.11 paf 17: #include "pa_table.h"
1.21 paf 18: #include "pa_vint.h"
1.24 paf 19: #include "pa_exec.h"
1.40 parser 20: #include "pa_vdate.h"
1.47 parser 21: #include "pa_dir.h"
22: #include "pa_vtable.h"
1.1 paf 23:
1.33 paf 24: // consts
25:
1.32 paf 26: // defines
27:
28: #define FILE_CLASS_NAME "file"
29:
1.48 parser 30: #define TEXT_MODE_NAME "text"
31:
1.32 paf 32: // class
33:
34: class MFile : public Methoded {
35: public: // VStateless_class
36:
37: Value *create_new_value(Pool& pool) { return new(pool) VFile(pool); }
38:
1.33 paf 39: public: // Methoded
40: bool used_directly() { return true; }
41:
1.32 paf 42: public:
43: MFile(Pool& pool);
1.33 paf 44:
1.32 paf 45: };
46:
1.9 paf 47: // consts
48:
49: const int FIND_MONKEY_MAX_HOPS=10;
50:
1.1 paf 51: // methods
52:
1.26 paf 53: static void _save(Request& r, const String&, MethodParams *params) {
1.48 parser 54: Value& vmode_name=params-> as_no_junction(0, "mode must not be code");
1.49 parser 55: Value& vfile_name=params->as_no_junction(1, "file name must not be code");
1.4 paf 56:
1.7 paf 57: // save
1.48 parser 58: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()),
59: vmode_name.as_string()==TEXT_MODE_NAME);
1.7 paf 60: }
61:
1.26 paf 62: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 63: Pool& pool=r.pool();
1.39 parser 64: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.7 paf 65:
66: // unlink
1.18 paf 67: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 68: }
69:
1.45 parser 70: static void _move(Request& r, const String&, MethodParams *params) {
71: Pool& pool=r.pool();
72: Value& vfrom_file_name=params->as_no_junction(0, "from file name must not be code");
73: Value& vto_file_name=params->as_no_junction(1, "to file name must not be code");
74:
1.51 parser 75: // move
1.45 parser 76: file_move(pool,
77: r.absolute(vfrom_file_name.as_string()),
78: r.absolute(vto_file_name.as_string()));
79: }
80:
1.26 paf 81: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 82: Pool& pool=r.pool();
1.39 parser 83: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.8 paf 84:
1.18 paf 85: const String &lfile_name=vfile_name.as_string();
1.8 paf 86:
87: // passed file name simply exists in current dir
88: if(file_readable(r.absolute(lfile_name))) {
89: r.write_no_lang(*new(pool) VString(lfile_name));
90: return;
91: }
92:
93: // scan .. dirs for result
1.9 paf 94: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 95: String test_name(pool);
96: for(int j=0; j<i; j++)
97: test_name.APPEND_CONST("../");
1.15 paf 98: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 99: if(file_readable(r.absolute(test_name))) {
100: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
101: return;
102: }
103: }
104:
105: // not found
106: if(params->size()==2) {
1.39 parser 107: Value& not_found_code=params->as_junction(1, "not-found param must be code");
1.8 paf 108: r.write_pass_lang(r.process(not_found_code));
109: }
110: }
111:
1.26 paf 112: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 113: Pool& pool=r.pool();
1.48 parser 114: Value& vmode_name=params-> as_no_junction(0, "mode must not be code");
115: Value& vfile_name=params->as_no_junction(1, "file name must not be code");
1.9 paf 116:
1.18 paf 117: const String& lfile_name=vfile_name.as_string();
1.9 paf 118:
1.12 paf 119: void *data; size_t size;
1.48 parser 120: file_read(pool, r.absolute(lfile_name), data, size,
121: vmode_name.as_string()==TEXT_MODE_NAME);
1.9 paf 122:
1.48 parser 123: char *user_file_name=params->size()>2?params->get(2).as_string().cstr()
1.53 parser 124: :lfile_name.cstr(String::UL_FILE_SPEC);
1.10 paf 125:
1.21 paf 126: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.52 parser 127: user_file_name, new(pool) VString(r.mime_type_of(user_file_name)));
1.9 paf 128: }
129:
1.26 paf 130: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 131: Pool& pool=r.pool();
1.39 parser 132: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.25 paf 133:
134: const String& lfile_name=vfile_name.as_string();
135:
1.40 parser 136: size_t size;
137: time_t atime, mtime, ctime;
138: file_stat(r.absolute(lfile_name),
139: size,
140: atime, mtime, ctime);
1.25 paf 141:
1.40 parser 142: VFile& vfile=*static_cast<VFile *>(r.self);
143: vfile.set(true/*tainted*/, 0/*no bytes*/, size);
144: Hash& ff=vfile.fields();
145: ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime));
146: ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime));
147: ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime));
1.25 paf 148: }
149:
1.22 paf 150: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
151: Hash& hash=*static_cast<Hash *>(info);
152: hash.put(key, &static_cast<Value *>(value)->as_string());
153: }
1.29 paf 154:
155: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
156: String& string=*static_cast<String *>(value);
157: Hash& hash=*static_cast<Hash *>(info);
158: int colon_pos=string.pos(":", 1);
159: if(colon_pos>0)
1.30 paf 160: hash.put(string.mid(0, colon_pos),
161: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 162: }
1.36 paf 163: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.41 parser 164: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
165: bool cgi) {
1.21 paf 166: Pool& pool=r.pool();
167:
1.39 parser 168: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 169:
1.23 paf 170: const String& script_name=r.absolute(vfile_name.as_string());
171:
172: Hash env(pool);
173: #define PASS(key) \
174: String key(pool); \
175: if(const char *value=SAPI::get_env(pool, #key)) { \
176: key.APPEND_CONST(value); \
177: env.put(String(pool, #key), &key); \
178: }
179: #define INFO(key, value) \
180: String value(pool); \
181: if(r.info.value) { \
182: value.APPEND_CONST(r.info.value); \
183: env.put(String(pool, key), &value); \
184: }
185:
186: // const
187: String gateway_interface(pool, "CGI/1.1");
188: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
189: // from Request.info
190: INFO("DOCUMENT_ROOT", document_root);
191: INFO("PATH_TRANSLATED", path_translated);
192: INFO("SERVER_PROTOCOL", method);
193: INFO("QUERY_STRING", query_string);
194: INFO("REQUEST_URI", uri);
195: INFO("CONTENT_TYPE", content_type);
196: char content_length_cstr[MAX_NUMBER];
197: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
198: String content_length(pool, content_length_cstr);
199: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
200: INFO("HTTP_COOKIE", cookie);
201: INFO("HTTP_USER_AGENT", user_agent);
202: // passing some SAPI:get_env-s
203: PASS(SERVER_NAME);
204: PASS(SERVER_PORT);
205: PASS(HTTP_REFERER);
206: PASS(REMOTE_ADDR);
207: PASS(REMOTE_HOST);
208: PASS(REMOTE_USER);
209: // SCRIPT_NAME
210: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 211: #ifdef WIN32
212: // WIN32 shell
213: PASS(COMSPEC);
214: #endif
1.23 paf 215:
1.21 paf 216: if(params->size()>1) {
1.39 parser 217: Value& venv=params->as_no_junction(1, "env must not be code");
1.23 paf 218: if(Hash *user_env=venv.get_hash())
219: user_env->for_each(append_env_pair, &env);
1.21 paf 220: }
221:
222: Array *argv=0;
223: if(params->size()>2) {
224: argv=new(pool) Array(pool, params->size()-2);
225: for(int i=2; i<params->size(); i++)
1.26 paf 226: *argv+=¶ms->get(i).as_string();
1.21 paf 227: }
228:
229: const String in(pool, r.post_data, r.post_size);
230: String out(pool);
1.31 paf 231: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
232: //out<<in;
1.27 paf 233: String& err=*new(pool) String(pool);
1.42 parser 234: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 235:
236: VFile& self=*static_cast<VFile *>(r.self);
237:
1.41 parser 238: const String *body=&out; // ^file:exec
239: if(cgi) { // ^file:cgi
240: // construct with 'out' body and header
241: int delim_size;
242: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
243: int pos=out.pos("\r\n\r\n", delim_size=4);
244: if(pos<0) {
245: eol_marker="\n"; eol_marker_size=1;
246: pos=out.pos("\n\n", delim_size=2);
247: }
248: if(pos<0) {
249: delim_size=0; // calm down, compiler
250: PTHROW(0, 0,
251: &method_name,
1.46 parser 252: "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"",
253: status,
254: (uint)out.size(), out.cstr(),
255: (uint)err.size(), err.cstr());
1.41 parser 256: }
1.21 paf 257:
1.41 parser 258: const String& header=out.mid(0, pos);
259: body=&out.mid(pos+delim_size, out.size());
1.30 paf 260:
1.41 parser 261: // header to $fields
262: {
263: Array rows(pool);
264: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
265: rows.for_each(pass_cgi_header_attribute, &self.fields());
266: }
1.29 paf 267: }
1.41 parser 268: // body
269: self.set(false/*not tainted*/, body->cstr(String::UL_AS_IS), body->size());
1.21 paf 270:
1.42 parser 271: // $status
1.21 paf 272: self.fields().put(
1.42 parser 273: *new(pool) String(pool, "status"),
274: new(pool) VInt(pool, status));
1.21 paf 275:
276: // $stderr
277: if(err.size()) {
278: self.fields().put(
279: *new(pool) String(pool, "stderr"),
280: new(pool) VString(err));
281:
1.44 parser 282: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 283: }
284: }
1.41 parser 285: static void _exec(Request& r, const String& method_name, MethodParams *params) {
286: _exec_cgi(r, method_name, params, false);
287: }
288: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
289: _exec_cgi(r, method_name, params, true);
290: }
291:
1.47 parser 292: static void _list(Request& r, const String& method_name, MethodParams *params) {
293: Pool& pool=r.pool();
294:
295: Value& relative_path=params->as_no_junction(0, "path must not be code");
296:
297: const String *regexp;
298: pcre *regexp_code;
299: int ovecsize;
300: int *ovector;
301: if(params->size()>1) {
302: regexp=¶ms->as_no_junction(1, "regexp must not be code").as_string();
303:
304: const char *pattern=regexp->cstr(String::UL_AS_IS);
305: const char *errptr;
306: int erroffset;
307: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
308: &errptr, &erroffset,
1.56 ! parser 309: r.pcre_tables());
1.47 parser 310:
311: if(!regexp_code)
312: PTHROW(0, 0,
313: ®exp->mid(erroffset, regexp->size()),
314: "regular expression syntax error - %s", errptr);
315:
1.50 parser 316: ovector=(int *)pool.malloc(sizeof(int)*(ovecsize=(1/*match*/)*3));
1.47 parser 317: } else
318: regexp_code=0;
319:
320:
321: const char* absolute_path_cstr=r.absolute(relative_path.as_string())
1.53 parser 322: .cstr(String::UL_FILE_SPEC);
1.47 parser 323:
324: Array& columns=*new(pool) Array(pool);
325: columns+=new(pool) String(pool, "name");
326: Table& table=*new(pool) Table(pool, &method_name, &columns);
327:
328: LOAD_DIR(absolute_path_cstr,
329: size_t file_name_size=strlen(ffblk.ff_name);
330: bool suits=true;
331: if(regexp_code) {
332: int exec_result=pcre_exec(regexp_code, 0,
333: ffblk.ff_name, file_name_size, 0,
334: 0, ovector, ovecsize);
335:
336: if(exec_result==PCRE_ERROR_NOMATCH)
337: suits=false;
338: else if(exec_result<0) {
339: (*pcre_free)(regexp_code);
340: PTHROW(0, 0,
341: regexp,
342: "regular expression execute (%d)",
343: exec_result);
344: }
345: }
346:
347: if(suits) {
1.50 parser 348: char *file_name_cstr=(char *)pool.malloc(file_name_size);
1.47 parser 349: memcpy(file_name_cstr, ffblk.ff_name, file_name_size);
350: String &file_name=*new(pool) String(pool);
1.53 parser 351: file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_SPEC,
1.47 parser 352: method_name.origin().file, method_name.origin().line);
353:
354: Array& row=*new(pool) Array(pool);
355: row+=&file_name;
356: table+=&row;
357: }
358: );
359:
360: if(regexp_code)
361: (*pcre_free)(regexp_code);
362:
363: VTable& result=*new(pool) VTable(pool, &table);
364: result.set_name(method_name);
365: r.write_no_lang(result);
366: }
1.21 paf 367:
1.32 paf 368: // constructor
369:
370: MFile::MFile(Pool& apool) : Methoded(apool) {
371: set_name(*NEW String(pool(), FILE_CLASS_NAME));
372:
1.1 paf 373:
1.48 parser 374: // ^save[mode;file-name]
375: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2);
1.7 paf 376:
377: // ^delete[file-name]
1.32 paf 378: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 379:
380: // ^move[from-file-name;to-file-name]
381: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 382:
383: // ^find[file-name]
384: // ^find[file-name]{when-not-found}
1.32 paf 385: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 386:
1.48 parser 387: // ^load[mode;disk-name]
388: // ^load[mode;disk-name;user-name]
389: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3);
1.25 paf 390:
391: // ^stat[disk-name]
1.32 paf 392: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 393:
1.36 paf 394: // ^cgi[file-name]
395: // ^cgi[file-name;env hash]
396: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 397: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
398:
399: // ^exec[file-name]
400: // ^exec[file-name;env hash]
401: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
402: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 parser 403:
404: // ^file:list[path]
405: // ^file:list[path][regexp]
406: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
407:
1.32 paf 408: }
409:
410: // global variable
411:
412: Methoded *file_class;
413:
414: // creator
415:
416: Methoded *MFile_create(Pool& pool) {
417: return file_class=new(pool) MFile(pool);
1.1 paf 418: }
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