Annotation of parser3/src/classes/file.C, revision 1.61
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:
1.61 ! paf 7: $Id: file.C,v 1.60 2001/10/23 14:43:44 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:
1.61 ! paf 123: char *user_file_name=params->size()>2?
! 124: params->as_string(2, "filename must be string").cstr(String::UL_FILE_SPEC)
1.53 parser 125: :lfile_name.cstr(String::UL_FILE_SPEC);
1.10 paf 126:
1.21 paf 127: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.52 parser 128: user_file_name, new(pool) VString(r.mime_type_of(user_file_name)));
1.9 paf 129: }
130:
1.26 paf 131: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 132: Pool& pool=r.pool();
1.39 parser 133: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.25 paf 134:
135: const String& lfile_name=vfile_name.as_string();
136:
1.40 parser 137: size_t size;
138: time_t atime, mtime, ctime;
139: file_stat(r.absolute(lfile_name),
140: size,
141: atime, mtime, ctime);
1.25 paf 142:
1.40 parser 143: VFile& vfile=*static_cast<VFile *>(r.self);
144: vfile.set(true/*tainted*/, 0/*no bytes*/, size);
145: Hash& ff=vfile.fields();
146: ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime));
147: ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime));
148: ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime));
1.25 paf 149: }
150:
1.22 paf 151: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
152: Hash& hash=*static_cast<Hash *>(info);
153: hash.put(key, &static_cast<Value *>(value)->as_string());
154: }
1.29 paf 155:
156: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
157: String& string=*static_cast<String *>(value);
158: Hash& hash=*static_cast<Hash *>(info);
159: int colon_pos=string.pos(":", 1);
160: if(colon_pos>0)
1.30 paf 161: hash.put(string.mid(0, colon_pos),
162: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 163: }
1.36 paf 164: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.41 parser 165: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
166: bool cgi) {
1.21 paf 167: Pool& pool=r.pool();
168:
1.39 parser 169: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 170:
1.23 paf 171: const String& script_name=r.absolute(vfile_name.as_string());
172:
173: Hash env(pool);
174: #define PASS(key) \
175: String key(pool); \
176: if(const char *value=SAPI::get_env(pool, #key)) { \
177: key.APPEND_CONST(value); \
178: env.put(String(pool, #key), &key); \
179: }
180: #define INFO(key, value) \
181: String value(pool); \
182: if(r.info.value) { \
183: value.APPEND_CONST(r.info.value); \
184: env.put(String(pool, key), &value); \
185: }
186:
187: // const
188: String gateway_interface(pool, "CGI/1.1");
189: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
190: // from Request.info
191: INFO("DOCUMENT_ROOT", document_root);
192: INFO("PATH_TRANSLATED", path_translated);
193: INFO("SERVER_PROTOCOL", method);
194: INFO("QUERY_STRING", query_string);
195: INFO("REQUEST_URI", uri);
196: INFO("CONTENT_TYPE", content_type);
197: char content_length_cstr[MAX_NUMBER];
198: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
199: String content_length(pool, content_length_cstr);
200: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
201: INFO("HTTP_COOKIE", cookie);
202: INFO("HTTP_USER_AGENT", user_agent);
203: // passing some SAPI:get_env-s
204: PASS(SERVER_NAME);
205: PASS(SERVER_PORT);
206: PASS(HTTP_REFERER);
207: PASS(REMOTE_ADDR);
208: PASS(REMOTE_HOST);
209: PASS(REMOTE_USER);
210: // SCRIPT_NAME
211: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 212: #ifdef WIN32
213: // WIN32 shell
214: PASS(COMSPEC);
215: #endif
1.23 paf 216:
1.21 paf 217: if(params->size()>1) {
1.39 parser 218: Value& venv=params->as_no_junction(1, "env must not be code");
1.60 parser 219: if(Hash *user_env=venv.get_hash(&method_name))
1.23 paf 220: user_env->for_each(append_env_pair, &env);
1.21 paf 221: }
222:
223: Array *argv=0;
224: if(params->size()>2) {
225: argv=new(pool) Array(pool, params->size()-2);
226: for(int i=2; i<params->size(); i++)
1.58 parser 227: *argv+=¶ms->as_string(i, "parameter must be string");
1.21 paf 228: }
229:
1.57 parser 230: String in(pool);
231: in.APPEND(r.post_data, r.post_size, String::UL_CLEAN, "passing post data", 0);
1.21 paf 232: String out(pool);
1.31 paf 233: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
234: //out<<in;
1.27 paf 235: String& err=*new(pool) String(pool);
1.42 parser 236: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 237:
238: VFile& self=*static_cast<VFile *>(r.self);
239:
1.41 parser 240: const String *body=&out; // ^file:exec
241: if(cgi) { // ^file:cgi
242: // construct with 'out' body and header
243: int delim_size;
244: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
245: int pos=out.pos("\r\n\r\n", delim_size=4);
246: if(pos<0) {
247: eol_marker="\n"; eol_marker_size=1;
248: pos=out.pos("\n\n", delim_size=2);
249: }
250: if(pos<0) {
251: delim_size=0; // calm down, compiler
1.59 parser 252: throw Exception(0, 0,
1.41 parser 253: &method_name,
1.46 parser 254: "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"",
255: status,
256: (uint)out.size(), out.cstr(),
257: (uint)err.size(), err.cstr());
1.41 parser 258: }
1.21 paf 259:
1.41 parser 260: const String& header=out.mid(0, pos);
261: body=&out.mid(pos+delim_size, out.size());
1.30 paf 262:
1.41 parser 263: // header to $fields
264: {
265: Array rows(pool);
266: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
267: rows.for_each(pass_cgi_header_attribute, &self.fields());
268: }
1.29 paf 269: }
1.41 parser 270: // body
271: self.set(false/*not tainted*/, body->cstr(String::UL_AS_IS), body->size());
1.21 paf 272:
1.42 parser 273: // $status
1.21 paf 274: self.fields().put(
1.42 parser 275: *new(pool) String(pool, "status"),
276: new(pool) VInt(pool, status));
1.21 paf 277:
278: // $stderr
279: if(err.size()) {
280: self.fields().put(
281: *new(pool) String(pool, "stderr"),
282: new(pool) VString(err));
283:
1.44 parser 284: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 285: }
286: }
1.41 parser 287: static void _exec(Request& r, const String& method_name, MethodParams *params) {
288: _exec_cgi(r, method_name, params, false);
289: }
290: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
291: _exec_cgi(r, method_name, params, true);
292: }
293:
1.47 parser 294: static void _list(Request& r, const String& method_name, MethodParams *params) {
295: Pool& pool=r.pool();
296:
297: Value& relative_path=params->as_no_junction(0, "path must not be code");
298:
299: const String *regexp;
300: pcre *regexp_code;
301: int ovecsize;
302: int *ovector;
303: if(params->size()>1) {
304: regexp=¶ms->as_no_junction(1, "regexp must not be code").as_string();
305:
306: const char *pattern=regexp->cstr(String::UL_AS_IS);
307: const char *errptr;
308: int erroffset;
309: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
310: &errptr, &erroffset,
1.56 parser 311: r.pcre_tables());
1.47 parser 312:
313: if(!regexp_code)
1.59 parser 314: throw Exception(0, 0,
1.47 parser 315: ®exp->mid(erroffset, regexp->size()),
316: "regular expression syntax error - %s", errptr);
317:
1.50 parser 318: ovector=(int *)pool.malloc(sizeof(int)*(ovecsize=(1/*match*/)*3));
1.47 parser 319: } else
320: regexp_code=0;
321:
322:
323: const char* absolute_path_cstr=r.absolute(relative_path.as_string())
1.53 parser 324: .cstr(String::UL_FILE_SPEC);
1.47 parser 325:
326: Array& columns=*new(pool) Array(pool);
327: columns+=new(pool) String(pool, "name");
328: Table& table=*new(pool) Table(pool, &method_name, &columns);
329:
330: LOAD_DIR(absolute_path_cstr,
331: size_t file_name_size=strlen(ffblk.ff_name);
332: bool suits=true;
333: if(regexp_code) {
334: int exec_result=pcre_exec(regexp_code, 0,
335: ffblk.ff_name, file_name_size, 0,
336: 0, ovector, ovecsize);
337:
338: if(exec_result==PCRE_ERROR_NOMATCH)
339: suits=false;
340: else if(exec_result<0) {
341: (*pcre_free)(regexp_code);
1.59 parser 342: throw Exception(0, 0,
1.47 parser 343: regexp,
344: "regular expression execute (%d)",
345: exec_result);
346: }
347: }
348:
349: if(suits) {
1.50 parser 350: char *file_name_cstr=(char *)pool.malloc(file_name_size);
1.47 parser 351: memcpy(file_name_cstr, ffblk.ff_name, file_name_size);
352: String &file_name=*new(pool) String(pool);
1.53 parser 353: file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_SPEC,
1.47 parser 354: method_name.origin().file, method_name.origin().line);
355:
356: Array& row=*new(pool) Array(pool);
357: row+=&file_name;
358: table+=&row;
359: }
360: );
361:
362: if(regexp_code)
363: (*pcre_free)(regexp_code);
364:
1.60 parser 365: // write out result
1.47 parser 366: VTable& result=*new(pool) VTable(pool, &table);
367: result.set_name(method_name);
368: r.write_no_lang(result);
369: }
1.21 paf 370:
1.32 paf 371: // constructor
372:
373: MFile::MFile(Pool& apool) : Methoded(apool) {
374: set_name(*NEW String(pool(), FILE_CLASS_NAME));
375:
1.1 paf 376:
1.48 parser 377: // ^save[mode;file-name]
378: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2);
1.7 paf 379:
380: // ^delete[file-name]
1.32 paf 381: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 382:
383: // ^move[from-file-name;to-file-name]
384: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 385:
386: // ^find[file-name]
387: // ^find[file-name]{when-not-found}
1.32 paf 388: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 389:
1.48 parser 390: // ^load[mode;disk-name]
391: // ^load[mode;disk-name;user-name]
392: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3);
1.25 paf 393:
394: // ^stat[disk-name]
1.32 paf 395: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 396:
1.36 paf 397: // ^cgi[file-name]
398: // ^cgi[file-name;env hash]
399: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 400: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
401:
402: // ^exec[file-name]
403: // ^exec[file-name;env hash]
404: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
405: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 parser 406:
407: // ^file:list[path]
408: // ^file:list[path][regexp]
409: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
410:
1.32 paf 411: }
412:
413: // global variable
414:
415: Methoded *file_class;
416:
417: // creator
418:
419: Methoded *MFile_create(Pool& pool) {
420: return file_class=new(pool) MFile(pool);
1.1 paf 421: }
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