Annotation of parser3/src/classes/file.C, revision 1.47
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:
1.47 ! parser 8: $Id: file.C,v 1.46 2001/08/06 12:23:11 parser Exp $
1.1 paf 9: */
1.47 ! parser 10: static const char *RCSId="$Id: file.C,v 1.46 2001/08/06 12:23:11 parser Exp $";
! 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:
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) {
1.39 parser 54: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.4 paf 55:
1.7 paf 56: // save
1.18 paf 57: static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
1.7 paf 58: }
59:
1.26 paf 60: static void _delete(Request& r, const String&, MethodParams *params) {
1.7 paf 61: Pool& pool=r.pool();
1.39 parser 62: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.7 paf 63:
64: // unlink
1.18 paf 65: file_delete(pool, r.absolute(vfile_name.as_string()));
1.1 paf 66: }
67:
1.45 parser 68: static void _move(Request& r, const String&, MethodParams *params) {
69: Pool& pool=r.pool();
70: Value& vfrom_file_name=params->as_no_junction(0, "from file name must not be code");
71: Value& vto_file_name=params->as_no_junction(1, "to file name must not be code");
72:
73: // unlink
74: file_move(pool,
75: r.absolute(vfrom_file_name.as_string()),
76: r.absolute(vto_file_name.as_string()));
77: }
78:
1.26 paf 79: static void _find(Request& r, const String& method_name, MethodParams *params) {
1.8 paf 80: Pool& pool=r.pool();
1.39 parser 81: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.8 paf 82:
1.18 paf 83: const String &lfile_name=vfile_name.as_string();
1.8 paf 84:
85: // passed file name simply exists in current dir
86: if(file_readable(r.absolute(lfile_name))) {
87: r.write_no_lang(*new(pool) VString(lfile_name));
88: return;
89: }
90:
91: // scan .. dirs for result
1.9 paf 92: for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
1.8 paf 93: String test_name(pool);
94: for(int j=0; j<i; j++)
95: test_name.APPEND_CONST("../");
1.15 paf 96: test_name.append(lfile_name, String::UL_CLEAN);
1.8 paf 97: if(file_readable(r.absolute(test_name))) {
98: r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
99: return;
100: }
101: }
102:
103: // not found
104: if(params->size()==2) {
1.39 parser 105: Value& not_found_code=params->as_junction(1, "not-found param must be code");
1.8 paf 106: r.write_pass_lang(r.process(not_found_code));
107: }
108: }
109:
1.26 paf 110: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.9 paf 111: Pool& pool=r.pool();
1.39 parser 112: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.9 paf 113:
1.18 paf 114: const String& lfile_name=vfile_name.as_string();
1.9 paf 115:
1.12 paf 116: void *data; size_t size;
1.9 paf 117: file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
118:
1.18 paf 119: char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
1.26 paf 120: :params->get(1).as_string().cstr();
1.10 paf 121:
1.21 paf 122: static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size,
1.20 paf 123: user_file_name, &r.mime_type_of(user_file_name));
1.9 paf 124: }
125:
1.26 paf 126: static void _stat(Request& r, const String& method_name, MethodParams *params) {
1.25 paf 127: Pool& pool=r.pool();
1.39 parser 128: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.25 paf 129:
130: const String& lfile_name=vfile_name.as_string();
131:
1.40 parser 132: size_t size;
133: time_t atime, mtime, ctime;
134: file_stat(r.absolute(lfile_name),
135: size,
136: atime, mtime, ctime);
1.25 paf 137:
1.40 parser 138: VFile& vfile=*static_cast<VFile *>(r.self);
139: vfile.set(true/*tainted*/, 0/*no bytes*/, size);
140: Hash& ff=vfile.fields();
141: ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime));
142: ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime));
143: ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime));
1.25 paf 144: }
145:
1.22 paf 146: static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
147: Hash& hash=*static_cast<Hash *>(info);
148: hash.put(key, &static_cast<Value *>(value)->as_string());
149: }
1.29 paf 150:
151: static void pass_cgi_header_attribute(Array::Item *value, void *info) {
152: String& string=*static_cast<String *>(value);
153: Hash& hash=*static_cast<Hash *>(info);
154: int colon_pos=string.pos(":", 1);
155: if(colon_pos>0)
1.30 paf 156: hash.put(string.mid(0, colon_pos),
157: new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
1.29 paf 158: }
1.36 paf 159: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.41 parser 160: static void _exec_cgi(Request& r, const String& method_name, MethodParams *params,
161: bool cgi) {
1.21 paf 162: Pool& pool=r.pool();
163:
1.39 parser 164: Value& vfile_name=params->as_no_junction(0, "file name must not be code");
1.21 paf 165:
1.23 paf 166: const String& script_name=r.absolute(vfile_name.as_string());
167:
168: Hash env(pool);
169: #define PASS(key) \
170: String key(pool); \
171: if(const char *value=SAPI::get_env(pool, #key)) { \
172: key.APPEND_CONST(value); \
173: env.put(String(pool, #key), &key); \
174: }
175: #define INFO(key, value) \
176: String value(pool); \
177: if(r.info.value) { \
178: value.APPEND_CONST(r.info.value); \
179: env.put(String(pool, key), &value); \
180: }
181:
182: // const
183: String gateway_interface(pool, "CGI/1.1");
184: env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
185: // from Request.info
186: INFO("DOCUMENT_ROOT", document_root);
187: INFO("PATH_TRANSLATED", path_translated);
188: INFO("SERVER_PROTOCOL", method);
189: INFO("QUERY_STRING", query_string);
190: INFO("REQUEST_URI", uri);
191: INFO("CONTENT_TYPE", content_type);
192: char content_length_cstr[MAX_NUMBER];
193: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
194: String content_length(pool, content_length_cstr);
195: env.put(String(pool, "CONTENT_LENGTH"), &content_length);
196: INFO("HTTP_COOKIE", cookie);
197: INFO("HTTP_USER_AGENT", user_agent);
198: // passing some SAPI:get_env-s
199: PASS(SERVER_NAME);
200: PASS(SERVER_PORT);
201: PASS(HTTP_REFERER);
202: PASS(REMOTE_ADDR);
203: PASS(REMOTE_HOST);
204: PASS(REMOTE_USER);
205: // SCRIPT_NAME
206: env.put(String(pool, "SCRIPT_NAME"), &script_name);
1.27 paf 207: #ifdef WIN32
208: // WIN32 shell
209: PASS(COMSPEC);
210: #endif
1.23 paf 211:
1.21 paf 212: if(params->size()>1) {
1.39 parser 213: Value& venv=params->as_no_junction(1, "env must not be code");
1.23 paf 214: if(Hash *user_env=venv.get_hash())
215: user_env->for_each(append_env_pair, &env);
1.21 paf 216: }
217:
218: Array *argv=0;
219: if(params->size()>2) {
220: argv=new(pool) Array(pool, params->size()-2);
221: for(int i=2; i<params->size(); i++)
1.26 paf 222: *argv+=¶ms->get(i).as_string();
1.21 paf 223: }
224:
225: const String in(pool, r.post_data, r.post_size);
226: String out(pool);
1.31 paf 227: //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
228: //out<<in;
1.27 paf 229: String& err=*new(pool) String(pool);
1.42 parser 230: int status=pa_exec(script_name, &env, argv, in, out, err);
1.21 paf 231:
232: VFile& self=*static_cast<VFile *>(r.self);
233:
1.41 parser 234: const String *body=&out; // ^file:exec
235: if(cgi) { // ^file:cgi
236: // construct with 'out' body and header
237: int delim_size;
238: const char *eol_marker="\r\n"; size_t eol_marker_size=2;
239: int pos=out.pos("\r\n\r\n", delim_size=4);
240: if(pos<0) {
241: eol_marker="\n"; eol_marker_size=1;
242: pos=out.pos("\n\n", delim_size=2);
243: }
244: if(pos<0) {
245: delim_size=0; // calm down, compiler
246: PTHROW(0, 0,
247: &method_name,
1.46 parser 248: "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"",
249: status,
250: (uint)out.size(), out.cstr(),
251: (uint)err.size(), err.cstr());
1.41 parser 252: }
1.21 paf 253:
1.41 parser 254: const String& header=out.mid(0, pos);
255: body=&out.mid(pos+delim_size, out.size());
1.30 paf 256:
1.41 parser 257: // header to $fields
258: {
259: Array rows(pool);
260: header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
261: rows.for_each(pass_cgi_header_attribute, &self.fields());
262: }
1.29 paf 263: }
1.41 parser 264: // body
265: self.set(false/*not tainted*/, body->cstr(String::UL_AS_IS), body->size());
1.21 paf 266:
1.42 parser 267: // $status
1.21 paf 268: self.fields().put(
1.42 parser 269: *new(pool) String(pool, "status"),
270: new(pool) VInt(pool, status));
1.21 paf 271:
272: // $stderr
273: if(err.size()) {
274: self.fields().put(
275: *new(pool) String(pool, "stderr"),
276: new(pool) VString(err));
277:
1.44 parser 278: SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr());
1.21 paf 279: }
280: }
1.41 parser 281: static void _exec(Request& r, const String& method_name, MethodParams *params) {
282: _exec_cgi(r, method_name, params, false);
283: }
284: static void _cgi(Request& r, const String& method_name, MethodParams *params) {
285: _exec_cgi(r, method_name, params, true);
286: }
287:
1.47 ! parser 288: static void _list(Request& r, const String& method_name, MethodParams *params) {
! 289: Pool& pool=r.pool();
! 290:
! 291: Value& relative_path=params->as_no_junction(0, "path must not be code");
! 292:
! 293: const String *regexp;
! 294: pcre *regexp_code;
! 295: int ovecsize;
! 296: int *ovector;
! 297: if(params->size()>1) {
! 298: regexp=¶ms->as_no_junction(1, "regexp must not be code").as_string();
! 299:
! 300: const char *pattern=regexp->cstr(String::UL_AS_IS);
! 301: const char *errptr;
! 302: int erroffset;
! 303: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
! 304: &errptr, &erroffset,
! 305: r.pcre_tables);
! 306:
! 307: if(!regexp_code)
! 308: PTHROW(0, 0,
! 309: ®exp->mid(erroffset, regexp->size()),
! 310: "regular expression syntax error - %s", errptr);
! 311:
! 312: ovector=(int *)malloc(sizeof(int)*(ovecsize=(1/*match*/)*3));
! 313: } else
! 314: regexp_code=0;
! 315:
! 316:
! 317: const char* absolute_path_cstr=r.absolute(relative_path.as_string())
! 318: .cstr(String::UL_FILE_NAME);
! 319:
! 320: Array& columns=*new(pool) Array(pool);
! 321: columns+=new(pool) String(pool, "name");
! 322: Table& table=*new(pool) Table(pool, &method_name, &columns);
! 323:
! 324: LOAD_DIR(absolute_path_cstr,
! 325: size_t file_name_size=strlen(ffblk.ff_name);
! 326: bool suits=true;
! 327: if(regexp_code) {
! 328: int exec_result=pcre_exec(regexp_code, 0,
! 329: ffblk.ff_name, file_name_size, 0,
! 330: 0, ovector, ovecsize);
! 331:
! 332: if(exec_result==PCRE_ERROR_NOMATCH)
! 333: suits=false;
! 334: else if(exec_result<0) {
! 335: (*pcre_free)(regexp_code);
! 336: PTHROW(0, 0,
! 337: regexp,
! 338: "regular expression execute (%d)",
! 339: exec_result);
! 340: }
! 341: }
! 342:
! 343: if(suits) {
! 344: char *file_name_cstr=(char *)r.malloc(file_name_size);
! 345: memcpy(file_name_cstr, ffblk.ff_name, file_name_size);
! 346: String &file_name=*new(pool) String(pool);
! 347: file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_NAME,
! 348: method_name.origin().file, method_name.origin().line);
! 349:
! 350: Array& row=*new(pool) Array(pool);
! 351: row+=&file_name;
! 352: table+=&row;
! 353: }
! 354: );
! 355:
! 356: if(regexp_code)
! 357: (*pcre_free)(regexp_code);
! 358:
! 359: VTable& result=*new(pool) VTable(pool, &table);
! 360: result.set_name(method_name);
! 361: r.write_no_lang(result);
! 362: }
1.21 paf 363:
1.32 paf 364: // constructor
365:
366: MFile::MFile(Pool& apool) : Methoded(apool) {
367: set_name(*NEW String(pool(), FILE_CLASS_NAME));
368:
1.1 paf 369:
370: // ^save[file-name]
1.32 paf 371: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
1.7 paf 372:
373: // ^delete[file-name]
1.32 paf 374: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 375:
376: // ^move[from-file-name;to-file-name]
377: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 378:
379: // ^find[file-name]
380: // ^find[file-name]{when-not-found}
1.32 paf 381: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.9 paf 382:
383: // ^load[disk-name]
384: // ^load[disk-name;user-name]
1.32 paf 385: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.25 paf 386:
387: // ^stat[disk-name]
1.32 paf 388: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 389:
1.36 paf 390: // ^cgi[file-name]
391: // ^cgi[file-name;env hash]
392: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 393: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
394:
395: // ^exec[file-name]
396: // ^exec[file-name;env hash]
397: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
398: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 ! parser 399:
! 400: // ^file:list[path]
! 401: // ^file:list[path][regexp]
! 402: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
! 403:
1.32 paf 404: }
405:
406: // global variable
407:
408: Methoded *file_class;
409:
410: // creator
411:
412: Methoded *MFile_create(Pool& pool) {
413: return file_class=new(pool) MFile(pool);
1.1 paf 414: }
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