Annotation of parser3/src/classes/file.C, revision 1.67
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)
1.65 paf 5: Author: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru)
1.17 paf 6:
1.67 ! paf 7: $Id: file.C,v 1.66 2001/12/13 09:32:06 paf 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"
1.67 ! paf 23: #include "pa_charset.h"
1.1 paf 24:
1.33 paf 25: // consts
26:
1.32 paf 27: // defines
28:
29: #define FILE_CLASS_NAME "file"
30:
1.48 parser 31: #define TEXT_MODE_NAME "text"
32:
1.32 paf 33: // class
34:
35: class MFile : public Methoded {
36: public: // VStateless_class
37:
38: Value *create_new_value(Pool& pool) { return new(pool) VFile(pool); }
39:
1.33 paf 40: public: // Methoded
41: bool used_directly() { return true; }
42:
1.32 paf 43: public:
44: MFile(Pool& pool);
1.33 paf 45:
1.32 paf 46: };
47:
1.9 paf 48: // consts
49:
50: const int FIND_MONKEY_MAX_HOPS=10;
51:
1.1 paf 52: // methods
53:
1.26 paf 54: static void _save(Request& r, const String&, MethodParams *params) {
1.48 parser 55: Value& vmode_name=params-> as_no_junction(0, "mode must not be code");
1.49 parser 56: Value& vfile_name=params->as_no_junction(1, "file name must not be code");
1.4 paf 57:
1.7 paf 58: // save
1.48 parser 59: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()),
60: vmode_name.as_string()==TEXT_MODE_NAME);
1.7 paf 61: }
62:
1.26 paf 63: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 64: Pool& pool=r.pool();
1.39 parser 65: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.7 paf 66:
67: // unlink
1.18 paf 68: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 69: }
70:
1.45 parser 71: static void _move(Request& r, const String&, MethodParams *params) {
72: Pool& pool=r.pool();
73: Value& vfrom_file_name=params->as_no_junction(0, "from file name must not be code");
74: Value& vto_file_name=params->as_no_junction(1, "to file name must not be code");
75:
1.51 parser 76: // move
1.45 parser 77: file_move(pool,
78: r.absolute(vfrom_file_name.as_string()),
79: r.absolute(vto_file_name.as_string()));
80: }
81:
1.26 paf 82: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 83: Pool& pool=r.pool();
1.39 parser 84: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.8 paf 85:
1.18 paf 86: const String &lfile_name=vfile_name.as_string();
1.8 paf 87:
88: // passed file name simply exists in current dir
89: if(file_readable(r.absolute(lfile_name))) {
90: r.write_no_lang(*new(pool) VString(lfile_name));
91: return;
92: }
93:
94: // scan .. dirs for result
1.9 paf 95: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 96: String test_name(pool);
97: for(int j=0; j<i; j++)
98: test_name.APPEND_CONST("../");
1.15 paf 99: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 100: if(file_readable(r.absolute(test_name))) {
101: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
102: return;
103: }
104: }
105:
106: // not found
107: if(params->size()==2) {
1.39 parser 108: Value& not_found_code=params->as_junction(1, "not-found param must be code");
1.8 paf 109: r.write_pass_lang(r.process(not_found_code));
110: }
111: }
112:
1.26 paf 113: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 114: Pool& pool=r.pool();
1.48 parser 115: Value& vmode_name=params-> as_no_junction(0, "mode must not be code");
116: Value& vfile_name=params->as_no_junction(1, "file name must not be code");
1.9 paf 117:
1.18 paf 118: const String& lfile_name=vfile_name.as_string();
1.9 paf 119:
1.12 paf 120: void *data; size_t size;
1.48 parser 121: file_read(pool, r.absolute(lfile_name), data, size,
122: vmode_name.as_string()==TEXT_MODE_NAME);
1.9 paf 123:
1.61 paf 124: char *user_file_name=params->size()>2?
125: params->as_string(2, "filename must be string").cstr(String::UL_FILE_SPEC)
1.53 parser 126: :lfile_name.cstr(String::UL_FILE_SPEC);
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: }
1.62 paf 165: /** @todo fix `` in perl - they produced flipping consoles and no output to perl
166: @test EPASS, ECSTR [touched them when optimized hash]
167: */
1.41 parser 168: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
169: bool cgi) {
1.21 paf 170: Pool& pool=r.pool();
171:
1.39 parser 172: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 173:
1.23 paf 174: const String& script_name=r.absolute(vfile_name.as_string());
175:
176: Hash env(pool);
1.62 paf 177: #define ECSTR(name, value_cstr) \
178: String name##key(pool, #name); \
179: String name##value(pool); \
180: if(value_cstr) { \
181: name##value.APPEND_CONST(value_cstr); \
182: env.put(name##key, &name##value); \
1.23 paf 183: }
1.62 paf 184: #define EPASS(name) \
185: String name##key(pool, #name); \
186: String name##value(pool); \
187: if(const char *value_cstr=SAPI::get_env(pool, #name)) { \
188: name##value.APPEND_CONST(value_cstr); \
189: env.put(name##key, &name##value); \
1.23 paf 190: }
191:
192: // const
1.63 paf 193: ECSTR(GATEWAY_INTERFACE, "CGI/1.1");
1.23 paf 194: // from Request.info
1.62 paf 195: ECSTR(DOCUMENT_ROOT, r.info.document_root);
196: ECSTR(PATH_TRANSLATED, r.info.path_translated);
1.66 paf 197: ECSTR(REQUEST_METHOD, r.info.method);
1.62 paf 198: ECSTR(QUERY_STRING, r.info.query_string);
199: ECSTR(REQUEST_URI, r.info.uri);
200: ECSTR(CONTENT_TYPE, r.info.content_type);
1.23 paf 201: char content_length_cstr[MAX_NUMBER];
202: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
203: String content_length(pool, content_length_cstr);
1.62 paf 204: ECSTR(CONTENT_LENGTH, content_length_cstr);
205: ECSTR(HTTP_COOKIE, r.info.cookie);
206: ECSTR(HTTP_USER_AGENT, r.info.user_agent);
1.23 paf 207: // passing some SAPI:get_env-s
1.66 paf 208: EPASS(SERVER_PROTOCOL);
1.62 paf 209: EPASS(SERVER_NAME);
210: EPASS(SERVER_PORT);
211: EPASS(HTTP_REFERER);
212: EPASS(REMOTE_ADDR);
213: EPASS(REMOTE_HOST);
214: EPASS(REMOTE_USER);
1.23 paf 215: // SCRIPT_NAME
1.63 paf 216: env.put(*new(pool) String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 217: #ifdef WIN32
218: // WIN32 shell
1.62 paf 219: EPASS(COMSPEC);
1.27 paf 220: #endif
1.23 paf 221:
1.21 paf 222: if(params->size()>1) {
1.39 parser 223: Value& venv=params->as_no_junction(1, "env must not be code");
1.60 parser 224: if(Hash *user_env=venv.get_hash(&method_name))
1.23 paf 225: user_env->for_each(append_env_pair, &env);
1.21 paf 226: }
227:
228: Array *argv=0;
229: if(params->size()>2) {
230: argv=new(pool) Array(pool, params->size()-2);
231: for(int i=2; i<params->size(); i++)
1.58 parser 232: *argv+=¶ms->as_string(i, "parameter must be string");
1.21 paf 233: }
234:
1.57 parser 235: String in(pool);
236: in.APPEND(r.post_data, r.post_size, String::UL_CLEAN, "passing post data", 0);
1.21 paf 237: String out(pool);
1.31 paf 238: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
239: //out<<in;
1.27 paf 240: String& err=*new(pool) String(pool);
1.42 parser 241: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 242:
243: VFile& self=*static_cast<VFile *>(r.self);
244:
1.41 parser 245: const String *body=&out; // ^file:exec
246: if(cgi) { // ^file:cgi
247: // construct with 'out' body and header
248: int delim_size;
249: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
250: int pos=out.pos("\r\n\r\n", delim_size=4);
251: if(pos<0) {
252: eol_marker="\n"; eol_marker_size=1;
253: pos=out.pos("\n\n", delim_size=2);
254: }
255: if(pos<0) {
256: delim_size=0; // calm down, compiler
1.59 parser 257: throw Exception(0, 0,
1.41 parser 258: &method_name,
1.46 parser 259: "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"",
260: status,
261: (uint)out.size(), out.cstr(),
262: (uint)err.size(), err.cstr());
1.41 parser 263: }
1.21 paf 264:
1.41 parser 265: const String& header=out.mid(0, pos);
266: body=&out.mid(pos+delim_size, out.size());
1.30 paf 267:
1.41 parser 268: // header to $fields
269: {
270: Array rows(pool);
271: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
272: rows.for_each(pass_cgi_header_attribute, &self.fields());
273: }
1.29 paf 274: }
1.41 parser 275: // body
1.64 paf 276: self.set(false/*not tainted*/, body->cstr(), body->size());
1.21 paf 277:
1.42 parser 278: // $status
1.21 paf 279: self.fields().put(
1.42 parser 280: *new(pool) String(pool, "status"),
281: new(pool) VInt(pool, status));
1.21 paf 282:
283: // $stderr
284: if(err.size()) {
285: self.fields().put(
286: *new(pool) String(pool, "stderr"),
287: new(pool) VString(err));
288:
1.44 parser 289: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 290: }
291: }
1.41 parser 292: static void _exec(Request& r, const String& method_name, MethodParams *params) {
293: _exec_cgi(r, method_name, params, false);
294: }
295: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
296: _exec_cgi(r, method_name, params, true);
297: }
298:
1.47 parser 299: static void _list(Request& r, const String& method_name, MethodParams *params) {
300: Pool& pool=r.pool();
301:
302: Value& relative_path=params->as_no_junction(0, "path must not be code");
303:
304: const String *regexp;
305: pcre *regexp_code;
306: int ovecsize;
307: int *ovector;
308: if(params->size()>1) {
309: regexp=¶ms->as_no_junction(1, "regexp must not be code").as_string();
310:
1.64 paf 311: const char *pattern=regexp->cstr();
1.47 parser 312: const char *errptr;
313: int erroffset;
314: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
315: &errptr, &erroffset,
1.67 ! paf 316: pool.get_client_charset().pcre_tables);
1.47 parser 317:
318: if(!regexp_code)
1.59 parser 319: throw Exception(0, 0,
1.47 parser 320: ®exp->mid(erroffset, regexp->size()),
321: "regular expression syntax error - %s", errptr);
322:
1.50 parser 323: ovector=(int *)pool.malloc(sizeof(int)*(ovecsize=(1/*match*/)*3));
1.47 parser 324: } else
325: regexp_code=0;
326:
327:
328: const char* absolute_path_cstr=r.absolute(relative_path.as_string())
1.53 parser 329: .cstr(String::UL_FILE_SPEC);
1.47 parser 330:
331: Array& columns=*new(pool) Array(pool);
332: columns+=new(pool) String(pool, "name");
333: Table& table=*new(pool) Table(pool, &method_name, &columns);
334:
335: LOAD_DIR(absolute_path_cstr,
336: size_t file_name_size=strlen(ffblk.ff_name);
337: bool suits=true;
338: if(regexp_code) {
339: int exec_result=pcre_exec(regexp_code, 0,
340: ffblk.ff_name, file_name_size, 0,
341: 0, ovector, ovecsize);
342:
343: if(exec_result==PCRE_ERROR_NOMATCH)
344: suits=false;
345: else if(exec_result<0) {
346: (*pcre_free)(regexp_code);
1.59 parser 347: throw Exception(0, 0,
1.47 parser 348: regexp,
349: "regular expression execute (%d)",
350: exec_result);
351: }
352: }
353:
354: if(suits) {
1.50 parser 355: char *file_name_cstr=(char *)pool.malloc(file_name_size);
1.47 parser 356: memcpy(file_name_cstr, ffblk.ff_name, file_name_size);
357: String &file_name=*new(pool) String(pool);
1.53 parser 358: file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_SPEC,
1.47 parser 359: method_name.origin().file, method_name.origin().line);
360:
361: Array& row=*new(pool) Array(pool);
362: row+=&file_name;
363: table+=&row;
364: }
365: );
366:
367: if(regexp_code)
368: (*pcre_free)(regexp_code);
369:
1.60 parser 370: // write out result
1.47 parser 371: VTable& result=*new(pool) VTable(pool, &table);
372: result.set_name(method_name);
373: r.write_no_lang(result);
374: }
1.21 paf 375:
1.32 paf 376: // constructor
377:
378: MFile::MFile(Pool& apool) : Methoded(apool) {
379: set_name(*NEW String(pool(), FILE_CLASS_NAME));
380:
1.1 paf 381:
1.48 parser 382: // ^save[mode;file-name]
383: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2);
1.7 paf 384:
385: // ^delete[file-name]
1.32 paf 386: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 387:
388: // ^move[from-file-name;to-file-name]
389: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 390:
391: // ^find[file-name]
392: // ^find[file-name]{when-not-found}
1.32 paf 393: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 394:
1.48 parser 395: // ^load[mode;disk-name]
396: // ^load[mode;disk-name;user-name]
397: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3);
1.25 paf 398:
399: // ^stat[disk-name]
1.32 paf 400: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 401:
1.36 paf 402: // ^cgi[file-name]
403: // ^cgi[file-name;env hash]
404: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 405: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
406:
407: // ^exec[file-name]
408: // ^exec[file-name;env hash]
409: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
410: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 parser 411:
412: // ^file:list[path]
413: // ^file:list[path][regexp]
414: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
415:
1.32 paf 416: }
417:
418: // global variable
419:
420: Methoded *file_class;
421:
422: // creator
423:
424: Methoded *MFile_create(Pool& pool) {
425: return file_class=new(pool) MFile(pool);
1.1 paf 426: }
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