Annotation of parser3/src/classes/file.C, revision 1.60
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:
1.60 ! parser 7: $Id: file.C,v 1.59 2001/10/19 12:43:29 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:
1.58 parser 123: char *user_file_name=params->size()>2?params->as_string(2, "filename must be 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");
1.60 ! parser 218: if(Hash *user_env=venv.get_hash(&method_name))
1.23 paf 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++)
1.58 parser 226: *argv+=¶ms->as_string(i, "parameter must be string");
1.21 paf 227: }
228:
1.57 parser 229: String in(pool);
230: in.APPEND(r.post_data, r.post_size, String::UL_CLEAN, "passing post data", 0);
1.21 paf 231: String out(pool);
1.31 paf 232: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
233: //out<<in;
1.27 paf 234: String& err=*new(pool) String(pool);
1.42 parser 235: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 236:
237: VFile& self=*static_cast<VFile *>(r.self);
238:
1.41 parser 239: const String *body=&out; // ^file:exec
240: if(cgi) { // ^file:cgi
241: // construct with 'out' body and header
242: int delim_size;
243: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
244: int pos=out.pos("\r\n\r\n", delim_size=4);
245: if(pos<0) {
246: eol_marker="\n"; eol_marker_size=1;
247: pos=out.pos("\n\n", delim_size=2);
248: }
249: if(pos<0) {
250: delim_size=0; // calm down, compiler
1.59 parser 251: throw Exception(0, 0,
1.41 parser 252: &method_name,
1.46 parser 253: "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"",
254: status,
255: (uint)out.size(), out.cstr(),
256: (uint)err.size(), err.cstr());
1.41 parser 257: }
1.21 paf 258:
1.41 parser 259: const String& header=out.mid(0, pos);
260: body=&out.mid(pos+delim_size, out.size());
1.30 paf 261:
1.41 parser 262: // header to $fields
263: {
264: Array rows(pool);
265: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
266: rows.for_each(pass_cgi_header_attribute, &self.fields());
267: }
1.29 paf 268: }
1.41 parser 269: // body
270: self.set(false/*not tainted*/, body->cstr(String::UL_AS_IS), body->size());
1.21 paf 271:
1.42 parser 272: // $status
1.21 paf 273: self.fields().put(
1.42 parser 274: *new(pool) String(pool, "status"),
275: new(pool) VInt(pool, status));
1.21 paf 276:
277: // $stderr
278: if(err.size()) {
279: self.fields().put(
280: *new(pool) String(pool, "stderr"),
281: new(pool) VString(err));
282:
1.44 parser 283: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 284: }
285: }
1.41 parser 286: static void _exec(Request& r, const String& method_name, MethodParams *params) {
287: _exec_cgi(r, method_name, params, false);
288: }
289: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
290: _exec_cgi(r, method_name, params, true);
291: }
292:
1.47 parser 293: static void _list(Request& r, const String& method_name, MethodParams *params) {
294: Pool& pool=r.pool();
295:
296: Value& relative_path=params->as_no_junction(0, "path must not be code");
297:
298: const String *regexp;
299: pcre *regexp_code;
300: int ovecsize;
301: int *ovector;
302: if(params->size()>1) {
303: regexp=¶ms->as_no_junction(1, "regexp must not be code").as_string();
304:
305: const char *pattern=regexp->cstr(String::UL_AS_IS);
306: const char *errptr;
307: int erroffset;
308: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
309: &errptr, &erroffset,
1.56 parser 310: r.pcre_tables());
1.47 parser 311:
312: if(!regexp_code)
1.59 parser 313: throw Exception(0, 0,
1.47 parser 314: ®exp->mid(erroffset, regexp->size()),
315: "regular expression syntax error - %s", errptr);
316:
1.50 parser 317: ovector=(int *)pool.malloc(sizeof(int)*(ovecsize=(1/*match*/)*3));
1.47 parser 318: } else
319: regexp_code=0;
320:
321:
322: const char* absolute_path_cstr=r.absolute(relative_path.as_string())
1.53 parser 323: .cstr(String::UL_FILE_SPEC);
1.47 parser 324:
325: Array& columns=*new(pool) Array(pool);
326: columns+=new(pool) String(pool, "name");
327: Table& table=*new(pool) Table(pool, &method_name, &columns);
328:
329: LOAD_DIR(absolute_path_cstr,
330: size_t file_name_size=strlen(ffblk.ff_name);
331: bool suits=true;
332: if(regexp_code) {
333: int exec_result=pcre_exec(regexp_code, 0,
334: ffblk.ff_name, file_name_size, 0,
335: 0, ovector, ovecsize);
336:
337: if(exec_result==PCRE_ERROR_NOMATCH)
338: suits=false;
339: else if(exec_result<0) {
340: (*pcre_free)(regexp_code);
1.59 parser 341: throw Exception(0, 0,
1.47 parser 342: regexp,
343: "regular expression execute (%d)",
344: exec_result);
345: }
346: }
347:
348: if(suits) {
1.50 parser 349: char *file_name_cstr=(char *)pool.malloc(file_name_size);
1.47 parser 350: memcpy(file_name_cstr, ffblk.ff_name, file_name_size);
351: String &file_name=*new(pool) String(pool);
1.53 parser 352: file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_SPEC,
1.47 parser 353: method_name.origin().file, method_name.origin().line);
354:
355: Array& row=*new(pool) Array(pool);
356: row+=&file_name;
357: table+=&row;
358: }
359: );
360:
361: if(regexp_code)
362: (*pcre_free)(regexp_code);
363:
1.60 ! parser 364: // write out result
1.47 parser 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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