Annotation of parser3/src/classes/file.C, revision 1.52
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:
1.52 ! parser 8: $Id: file.C,v 1.51 2001/08/28 09:39:30 parser Exp $
1.1 paf 9: */
1.52 ! parser 10: static const char *RCSId="$Id: file.C,v 1.51 2001/08/28 09:39:30 parser Exp $";
1.47 parser 11:
12: #include "pa_config_includes.h"
13:
14: #include "pcre.h"
1.1 paf 15:
1.35 paf 16: #include "classes.h"
1.1 paf 17: #include "pa_request.h"
18: #include "pa_vfile.h"
1.11 paf 19: #include "pa_table.h"
1.21 paf 20: #include "pa_vint.h"
1.24 paf 21: #include "pa_exec.h"
1.40 parser 22: #include "pa_vdate.h"
1.47 parser 23: #include "pa_dir.h"
24: #include "pa_vtable.h"
1.1 paf 25:
1.33 paf 26: // consts
27:
1.32 paf 28: // defines
29:
30: #define FILE_CLASS_NAME "file"
31:
1.48 parser 32: #define TEXT_MODE_NAME "text"
33:
1.32 paf 34: // class
35:
36: class MFile : public Methoded {
37: public: // VStateless_class
38:
39: Value *create_new_value(Pool& pool) { return new(pool) VFile(pool); }
40:
1.33 paf 41: public: // Methoded
42: bool used_directly() { return true; }
43:
1.32 paf 44: public:
45: MFile(Pool& pool);
1.33 paf 46:
1.32 paf 47: };
48:
1.9 paf 49: // consts
50:
51: const int FIND_MONKEY_MAX_HOPS=10;
52:
1.1 paf 53: // methods
54:
1.26 paf 55: static void _save(Request& r, const String&, MethodParams *params) {
1.48 parser 56: Value& vmode_name=params-> as_no_junction(0, "mode must not be code");
1.49 parser 57: Value& vfile_name=params->as_no_junction(1, "file name must not be code");
1.4 paf 58:
1.7 paf 59: // save
1.48 parser 60: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()),
61: vmode_name.as_string()==TEXT_MODE_NAME);
1.7 paf 62: }
63:
1.26 paf 64: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 65: Pool& pool=r.pool();
1.39 parser 66: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.7 paf 67:
68: // unlink
1.18 paf 69: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 70: }
71:
1.45 parser 72: static void _move(Request& r, const String&, MethodParams *params) {
73: Pool& pool=r.pool();
74: Value& vfrom_file_name=params->as_no_junction(0, "from file name must not be code");
75: Value& vto_file_name=params->as_no_junction(1, "to file name must not be code");
76:
1.51 parser 77: // move
1.45 parser 78: file_move(pool,
79: r.absolute(vfrom_file_name.as_string()),
80: r.absolute(vto_file_name.as_string()));
81: }
82:
1.26 paf 83: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 84: Pool& pool=r.pool();
1.39 parser 85: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.8 paf 86:
1.18 paf 87: const String &lfile_name=vfile_name.as_string();
1.8 paf 88:
89: // passed file name simply exists in current dir
90: if(file_readable(r.absolute(lfile_name))) {
91: r.write_no_lang(*new(pool) VString(lfile_name));
92: return;
93: }
94:
95: // scan .. dirs for result
1.9 paf 96: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 97: String test_name(pool);
98: for(int j=0; j<i; j++)
99: test_name.APPEND_CONST("../");
1.15 paf 100: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 101: if(file_readable(r.absolute(test_name))) {
102: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
103: return;
104: }
105: }
106:
107: // not found
108: if(params->size()==2) {
1.39 parser 109: Value& not_found_code=params->as_junction(1, "not-found param must be code");
1.8 paf 110: r.write_pass_lang(r.process(not_found_code));
111: }
112: }
113:
1.26 paf 114: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 115: Pool& pool=r.pool();
1.48 parser 116: Value& vmode_name=params-> as_no_junction(0, "mode must not be code");
117: Value& vfile_name=params->as_no_junction(1, "file name must not be code");
1.9 paf 118:
1.18 paf 119: const String& lfile_name=vfile_name.as_string();
1.9 paf 120:
1.12 paf 121: void *data; size_t size;
1.48 parser 122: file_read(pool, r.absolute(lfile_name), data, size,
123: vmode_name.as_string()==TEXT_MODE_NAME);
1.9 paf 124:
1.48 parser 125: char *user_file_name=params->size()>2?params->get(2).as_string().cstr()
126: :lfile_name.cstr(String::UL_FILE_NAME);
1.10 paf 127:
1.21 paf 128: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.52 ! parser 129: user_file_name, new(pool) VString(r.mime_type_of(user_file_name)));
1.9 paf 130: }
131:
1.26 paf 132: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 133: Pool& pool=r.pool();
1.39 parser 134: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.25 paf 135:
136: const String& lfile_name=vfile_name.as_string();
137:
1.40 parser 138: size_t size;
139: time_t atime, mtime, ctime;
140: file_stat(r.absolute(lfile_name),
141: size,
142: atime, mtime, ctime);
1.25 paf 143:
1.40 parser 144: VFile& vfile=*static_cast<VFile *>(r.self);
145: vfile.set(true/*tainted*/, 0/*no bytes*/, size);
146: Hash& ff=vfile.fields();
147: ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime));
148: ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime));
149: ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime));
1.25 paf 150: }
151:
1.22 paf 152: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
153: Hash& hash=*static_cast<Hash *>(info);
154: hash.put(key, &static_cast<Value *>(value)->as_string());
155: }
1.29 paf 156:
157: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
158: String& string=*static_cast<String *>(value);
159: Hash& hash=*static_cast<Hash *>(info);
160: int colon_pos=string.pos(":", 1);
161: if(colon_pos>0)
1.30 paf 162: hash.put(string.mid(0, colon_pos),
163: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 164: }
1.36 paf 165: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.41 parser 166: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
167: bool cgi) {
1.21 paf 168: Pool& pool=r.pool();
169:
1.39 parser 170: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 171:
1.23 paf 172: const String& script_name=r.absolute(vfile_name.as_string());
173:
174: Hash env(pool);
175: #define PASS(key) \
176: String key(pool); \
177: if(const char *value=SAPI::get_env(pool, #key)) { \
178: key.APPEND_CONST(value); \
179: env.put(String(pool, #key), &key); \
180: }
181: #define INFO(key, value) \
182: String value(pool); \
183: if(r.info.value) { \
184: value.APPEND_CONST(r.info.value); \
185: env.put(String(pool, key), &value); \
186: }
187:
188: // const
189: String gateway_interface(pool, "CGI/1.1");
190: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
191: // from Request.info
192: INFO("DOCUMENT_ROOT", document_root);
193: INFO("PATH_TRANSLATED", path_translated);
194: INFO("SERVER_PROTOCOL", method);
195: INFO("QUERY_STRING", query_string);
196: INFO("REQUEST_URI", uri);
197: INFO("CONTENT_TYPE", content_type);
198: char content_length_cstr[MAX_NUMBER];
199: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
200: String content_length(pool, content_length_cstr);
201: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
202: INFO("HTTP_COOKIE", cookie);
203: INFO("HTTP_USER_AGENT", user_agent);
204: // passing some SAPI:get_env-s
205: PASS(SERVER_NAME);
206: PASS(SERVER_PORT);
207: PASS(HTTP_REFERER);
208: PASS(REMOTE_ADDR);
209: PASS(REMOTE_HOST);
210: PASS(REMOTE_USER);
211: // SCRIPT_NAME
212: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 213: #ifdef WIN32
214: // WIN32 shell
215: PASS(COMSPEC);
216: #endif
1.23 paf 217:
1.21 paf 218: if(params->size()>1) {
1.39 parser 219: Value& venv=params->as_no_junction(1, "env must not be code");
1.23 paf 220: if(Hash *user_env=venv.get_hash())
221: user_env->for_each(append_env_pair, &env);
1.21 paf 222: }
223:
224: Array *argv=0;
225: if(params->size()>2) {
226: argv=new(pool) Array(pool, params->size()-2);
227: for(int i=2; i<params->size(); i++)
1.26 paf 228: *argv+=¶ms->get(i).as_string();
1.21 paf 229: }
230:
231: const String in(pool, r.post_data, r.post_size);
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
252: PTHROW(0, 0,
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,
311: r.pcre_tables);
312:
313: if(!regexp_code)
314: PTHROW(0, 0,
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())
324: .cstr(String::UL_FILE_NAME);
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);
342: PTHROW(0, 0,
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);
353: file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_NAME,
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:
365: VTable& result=*new(pool) VTable(pool, &table);
366: result.set_name(method_name);
367: r.write_no_lang(result);
368: }
1.21 paf 369:
1.32 paf 370: // constructor
371:
372: MFile::MFile(Pool& apool) : Methoded(apool) {
373: set_name(*NEW String(pool(), FILE_CLASS_NAME));
374:
1.1 paf 375:
1.48 parser 376: // ^save[mode;file-name]
377: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2);
1.7 paf 378:
379: // ^delete[file-name]
1.32 paf 380: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 381:
382: // ^move[from-file-name;to-file-name]
383: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 384:
385: // ^find[file-name]
386: // ^find[file-name]{when-not-found}
1.32 paf 387: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 388:
1.48 parser 389: // ^load[mode;disk-name]
390: // ^load[mode;disk-name;user-name]
391: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3);
1.25 paf 392:
393: // ^stat[disk-name]
1.32 paf 394: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 395:
1.36 paf 396: // ^cgi[file-name]
397: // ^cgi[file-name;env hash]
398: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 399: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
400:
401: // ^exec[file-name]
402: // ^exec[file-name;env hash]
403: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
404: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 parser 405:
406: // ^file:list[path]
407: // ^file:list[path][regexp]
408: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
409:
1.32 paf 410: }
411:
412: // global variable
413:
414: Methoded *file_class;
415:
416: // creator
417:
418: Methoded *MFile_create(Pool& pool) {
419: return file_class=new(pool) MFile(pool);
1.1 paf 420: }
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