Annotation of parser3/src/classes/file.C, revision 1.107.2.8
1.17 paf 1: /** @file
2: Parser: @b file parser class.
3:
1.107.2.3 paf 4: Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.72 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.91 paf 6: */
1.17 paf 7:
1.107.2.8! paf 8: static const char* IDENT_FILE_C="$Date: 2003/02/06 14:24:50 $";
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"
1.107.2.5 paf 15: #include "pa_vmethod_frame.h"
16:
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"
1.67 paf 25: #include "pa_charset.h"
1.1 paf 26:
1.32 paf 27: // defines
28:
1.48 parser 29: #define TEXT_MODE_NAME "text"
1.90 paf 30: #define STDIN_EXEC_PARAM_NAME "stdin"
1.48 parser 31:
1.107.2.8! paf 32: // class
! 33:
! 34: class MFile : public Methoded {
! 35: public: // VStateless_class
! 36:
! 37: ValuePtr create_new_value() { return ValuePtr(new VFile()); }
! 38:
! 39: public: // Methoded
! 40: bool used_directly() { return true; }
! 41:
! 42: public:
! 43: MFile();
! 44:
! 45: };
! 46:
! 47: // global variable
! 48:
! 49: MethodedPtr file_class_ptr(new MFile);
! 50:
1.83 paf 51: // consts
52:
53: /// from apache-1.3|src|support|suexec.c
1.107.2.3 paf 54: static const char* suexec_safe_env_lst[]={
1.83 paf 55: "AUTH_TYPE",
56: "CONTENT_LENGTH",
57: "CONTENT_TYPE",
58: "DATE_GMT",
59: "DATE_LOCAL",
60: "DOCUMENT_NAME",
61: "DOCUMENT_PATH_INFO",
62: "DOCUMENT_ROOT",
63: "DOCUMENT_URI",
64: "FILEPATH_INFO",
65: "GATEWAY_INTERFACE",
66: "LAST_MODIFIED",
67: "PATH_INFO",
68: "PATH_TRANSLATED",
69: "QUERY_STRING",
70: "QUERY_STRING_UNESCAPED",
71: "REMOTE_ADDR",
72: "REMOTE_HOST",
73: "REMOTE_IDENT",
74: "REMOTE_PORT",
75: "REMOTE_USER",
76: "REDIRECT_QUERY_STRING",
77: "REDIRECT_STATUS",
78: "REDIRECT_URL",
79: "REQUEST_METHOD",
80: "REQUEST_URI",
81: "SCRIPT_FILENAME",
82: "SCRIPT_NAME",
83: "SCRIPT_URI",
84: "SCRIPT_URL",
85: "SERVER_ADMIN",
86: "SERVER_NAME",
87: "SERVER_ADDR",
88: "SERVER_PORT",
89: "SERVER_PROTOCOL",
90: "SERVER_SOFTWARE",
91: "UNIQUE_ID",
92: "USER_NAME",
93: "TZ",
94: NULL
95: };
96:
1.107.2.7 paf 97: // statics
98:
99: static StringPtr adate_name(new String("adate"));
100: static StringPtr mdate_name(new String("mdate"));
101: static StringPtr cdate_name(new String("cdate"));
102:
1.1 paf 103: // methods
104:
1.107.2.4 paf 105: static void _save(Request& r, StringPtr /*method_name*/, MethodParams& params) {
1.107.2.7 paf 106: Pool& pool=r.pool();
107: ValuePtr vmode_name=params. as_no_junction(0, "mode must not be code");
108: ValuePtr vfile_name=params.as_no_junction(1, "file name must not be code");
1.4 paf 109:
1.7 paf 110: // save
1.107.2.7 paf 111: GET_SELF(r, VFile).save(r.absolute(vfile_name->as_string(&pool)),
112: *vmode_name->as_string(&pool)==TEXT_MODE_NAME);
1.7 paf 113: }
114:
1.107.2.4 paf 115: static void _delete(Request& r, StringPtr /*method_name*/, MethodParams& params) {
1.107.2.7 paf 116: Pool& pool=r.pool();
117: ValuePtr vfile_name=params.as_no_junction(0, "file name must not be code");
1.7 paf 118:
119: // unlink
1.107.2.7 paf 120: file_delete(r.absolute(vfile_name->as_string(&pool)));
1.1 paf 121: }
122:
1.107.2.4 paf 123: static void _move(Request& r, StringPtr /*method_name*/, MethodParams& params) {
1.107.2.7 paf 124: Pool& pool=r.pool();
125: ValuePtr vfrom_file_name=params.as_no_junction(0, "from file name must not be code");
126: ValuePtr vto_file_name=params.as_no_junction(1, "to file name must not be code");
1.45 parser 127:
1.51 parser 128: // move
1.68 paf 129: file_move(
1.107.2.7 paf 130: r.absolute(vfrom_file_name->as_string(&pool)),
131: r.absolute(vto_file_name->as_string(&pool)));
1.45 parser 132: }
133:
1.107.2.7 paf 134: static void _load_pass_param(
135: HashStringValue::key_type key,
136: HashStringValue::value_type value,
137: HashStringValue *dest) {
138: dest->put(key, value);
1.105 paf 139: }
1.107.2.4 paf 140: static void _load(Request& r, StringPtr method_name, MethodParams& params) {
1.9 paf 141: Pool& pool=r.pool();
1.107.2.7 paf 142: ValuePtr vmode_name=params. as_no_junction(0, "mode must not be code");
143: StringPtr lfile_name=r.absolute(params.as_no_junction(1, "file name must not be code")->as_string(&pool));
144: ValuePtr third_param=params.count()>2?params.as_no_junction(2, "filename or options must not be code")
145: :ValuePtr(0);
146: HashStringValue* third_param_hash=third_param?third_param->get_hash(method_name):0;
1.104 paf 147: int alt_filename_param_index=2;
148: if(third_param_hash)
149: alt_filename_param_index++;
1.9 paf 150:
1.107.2.7 paf 151: char *data; size_t size;
152: File_read_result file=file_read(pool, r.charsets.source(), lfile_name, data, size,
153: *vmode_name->as_string(&pool)==TEXT_MODE_NAME,
154: third_param_hash
1.104 paf 155: );
1.9 paf 156:
1.107.2.4 paf 157: char *user_file_name=params.count()>alt_filename_param_index?
1.107.2.7 paf 158: params.as_string(alt_filename_param_index, "filename must be string")->cstr(pool)
159: :lfile_name->cstr(pool, String::UL_FILE_SPEC);
1.104 paf 160:
1.107.2.7 paf 161: ValuePtr vcontent_type(0);
162: if(file.headers)
163: vcontent_type=file.headers->get(content_type_name);
1.104 paf 164: if(!vcontent_type)
1.107.2.7 paf 165: vcontent_type=ValuePtr(new VString(r.mime_type_of(user_file_name)));
1.10 paf 166:
1.107.2.7 paf 167: VFile& self=GET_SELF(r, VFile);
168: self.set(pool, true/*tainted*/, data, size, user_file_name, vcontent_type);
169: if(file.headers)
170: file.headers->for_each(_load_pass_param, &self.fields());
1.9 paf 171: }
172:
1.107.2.4 paf 173: static void _stat(Request& r, StringPtr method_name, MethodParams& params) {
1.25 paf 174: Pool& pool=r.pool();
1.107.2.7 paf 175: ValuePtr vfile_name=params.as_no_junction(0, "file name must not be code");
1.25 paf 176:
1.107.2.7 paf 177: StringPtr lfile_name=vfile_name->as_string(&pool);
1.25 paf 178:
1.40 parser 179: size_t size;
180: time_t atime, mtime, ctime;
181: file_stat(r.absolute(lfile_name),
182: size,
183: atime, mtime, ctime);
1.25 paf 184:
1.107.2.7 paf 185: VFile& self=GET_SELF(r, VFile);
186: self.set(pool, true/*tainted*/, 0/*no bytes*/, size);
187: HashStringValue& ff=self.fields();
188: ff.put(adate_name, ValuePtr(new VDate(atime)));
189: ff.put(mdate_name, ValuePtr(new VDate(mtime)));
190: ff.put(cdate_name, ValuePtr(new VDate(ctime)));
191: ff.put(content_type_name, ValuePtr(new VString(r.mime_type_of(lfile_name->cstr(String::UL_FILE_SPEC)))));
1.25 paf 192: }
193:
1.107.2.7 paf 194: static bool is_safe_env_key(CharPtr key) {
1.88 paf 195: if(strncasecmp(key, "HTTP_", 5)==0)
1.83 paf 196: return true;
1.87 paf 197: if(strncasecmp(key, "CGI_", 4)==0)
1.83 paf 198: return true;
199: for(int i=0; suexec_safe_env_lst[i]; i++) {
1.87 paf 200: if(strcasecmp(key, suexec_safe_env_lst[i])==0)
1.83 paf 201: return true;
202: }
203: return false;
204: }
1.90 paf 205: #ifndef DOXYGEN
206: struct Append_env_pair_info {
1.107.2.7 paf 207: Pool* pool;
208: HashStringString* env;
209: ValuePtr vstdin;
1.90 paf 210: };
211: #endif
1.107.2.7 paf 212: static void append_env_pair(
213: HashStringValue::key_type akey,
214: HashStringValue::value_type avalue,
215: Append_env_pair_info *info) {
216: if(*akey==STDIN_EXEC_PARAM_NAME) {
217: info->vstdin=avalue;
1.90 paf 218: } else {
1.107.2.7 paf 219: if(!is_safe_env_key(akey->cstr()))
1.90 paf 220: throw Exception("parser.runtime",
1.107.2.7 paf 221: akey,
1.90 paf 222: "not safe environment variable");
1.107.2.7 paf 223: info->env->put(akey, avalue->as_string(info->pool));
1.90 paf 224: }
1.22 paf 225: }
1.94 paf 226: #ifndef DOXYGEN
227: struct Pass_cgi_header_attribute_info {
1.107.2.7 paf 228: Pool* pool;
229: Charset* charset;
230: HashStringValue* fields;
231: ValuePtr content_type;
1.94 paf 232: };
233: #endif
1.107.2.7 paf 234: static void pass_cgi_header_attribute(
235: ArrayString::element_type astring,
236: Pass_cgi_header_attribute_info* info) {
237: int colon_pos=astring->pos(":", 1);
1.94 paf 238: if(colon_pos>0) {
1.107.2.7 paf 239: StringPtr key(astring->mid(0, colon_pos)->change_case(
240: *info->pool, *info->charset, String::CC_UPPER));
241: ValuePtr value(new VString(astring->mid(colon_pos+1, astring->size())));
242: info->fields->put(key, value);
243: if(*key=="CONTENT-TYPE")
244: info->content_type=value;
1.94 paf 245: }
1.29 paf 246: }
1.90 paf 247: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.107.2.4 paf 248: static void _exec_cgi(Request& r, StringPtr method_name, MethodParams& params,
1.41 parser 249: bool cgi) {
1.21 paf 250: Pool& pool=r.pool();
251:
1.107.2.7 paf 252: ValuePtr vfile_name=params.as_no_junction(0, "file name must not be code");
1.21 paf 253:
1.107.2.7 paf 254: StringPtr script_name=r.absolute(vfile_name->as_string(&pool));
1.23 paf 255:
1.107.2.7 paf 256: HashStringString env;
1.62 paf 257: #define ECSTR(name, value_cstr) \
1.107.2.7 paf 258: if(value_cstr) \
259: env.put( \
260: StringPtr(new String(#name)), \
261: StringPtr(new String(value_cstr))); \
1.82 paf 262: // passing SAPI::environment
1.107.2.7 paf 263: if(const char* const *pairs=SAPI::environment(r.sapi_info)) {
1.107.2.3 paf 264: while(const char* pair=*pairs++)
1.107.2.7 paf 265: if(const char* eq_at=strchr(pair, '='))
266: env.put(
267: StringPtr(new String(pair, eq_at-pair)),
268: StringPtr(new String(eq_at+1)));
1.82 paf 269: }
270:
1.23 paf 271: // const
1.63 paf 272: ECSTR(GATEWAY_INTERFACE, "CGI/1.1");
1.23 paf 273: // from Request.info
1.107.2.7 paf 274: ECSTR(DOCUMENT_ROOT, r.request_info.document_root);
275: ECSTR(PATH_TRANSLATED, r.request_info.path_translated);
276: ECSTR(REQUEST_METHOD, r.request_info.method);
277: ECSTR(QUERY_STRING, r.request_info.query_string);
278: ECSTR(REQUEST_URI, r.request_info.uri);
279: ECSTR(CONTENT_TYPE, r.request_info.content_type);
1.23 paf 280: char content_length_cstr[MAX_NUMBER];
1.107.2.7 paf 281: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.request_info.content_length);
282: //String content_length(content_length_cstr);
1.62 paf 283: ECSTR(CONTENT_LENGTH, content_length_cstr);
1.82 paf 284: // SCRIPT_*
1.107.2.7 paf 285: env.put(StringPtr(new String("SCRIPT_NAME")), script_name);
1.82 paf 286: //env.put(*new(pool) String(pool, "SCRIPT_FILENAME"), ??&script_name);
1.23 paf 287:
1.103 paf 288: bool stdin_specified=false;
1.90 paf 289: // environment & stdin from param
1.107.2.7 paf 290: String in;
1.107.2.4 paf 291: if(params.count()>1) {
1.107.2.7 paf 292: ValuePtr venv=params.as_no_junction(1, "env must not be code");
293: if(HashStringValue* user_env=venv->get_hash(method_name)) {
294: Append_env_pair_info info;
295: info.pool=&pool;
296: info.env=&env;
1.90 paf 297: user_env->for_each(append_env_pair, &info);
1.103 paf 298: if(info.vstdin) {
299: stdin_specified=true;
1.107.2.7 paf 300: if(StringPtr sstdin=info.vstdin->get_string(&pool)) {
1.103 paf 301: in.append(*sstdin, String::UL_CLEAN, true);
302: } else
1.100 paf 303: if(VFile *vfile=static_cast<VFile *>(info.vstdin->as("file", false)))
1.107.2.3 paf 304: in.APPEND_TAINTED((const char* )vfile->value_ptr(), vfile->value_size(),
1.100 paf 305: "$.stdin[assigned]", 0);
306: else
307: throw Exception("parser.runtime",
1.107.2.6 paf 308: method_name,
1.100 paf 309: STDIN_EXEC_PARAM_NAME " parameter must be string or file");
1.103 paf 310: }
1.90 paf 311: }
1.21 paf 312: }
313:
1.90 paf 314: // argv from params
1.107.2.7 paf 315: ArrayString argv;
1.107.2.4 paf 316: if(params.count()>2) {
317: for(int i=2; i<params.count(); i++)
1.107.2.7 paf 318: argv+=params.as_string(i, "parameter must be string");
1.21 paf 319: }
320:
1.90 paf 321: // passing POST data
1.103 paf 322: if(!stdin_specified) // if $.stdin[...] not specified
1.107.2.7 paf 323: in.APPEND(r.request_info.post_data, r.request_info.post_size, String::UL_CLEAN,
324: "POST data (passed)", 0);
1.90 paf 325:
326: // exec!
1.107.2.7 paf 327: PA_exec_result execution=
328: pa_exec(pool, false/*forced_allow*/, script_name, env, argv, in);
1.21 paf 329:
1.107.2.7 paf 330: VFile& self=GET_SELF(r, VFile);
1.21 paf 331:
1.107.2.7 paf 332: StringPtr body=execution.out; // ^file:exec
333: ValuePtr content_type(0);
1.107.2.3 paf 334: const char* eol_marker=0; size_t eol_marker_size;
1.107.2.7 paf 335: StringPtr header(0);
1.41 parser 336: if(cgi) { // ^file:cgi
337: // construct with 'out' body and header
1.107.2.7 paf 338: int dos_pos=execution.out->pos("\r\n\r\n", 4);
339: int unix_pos=execution.out->pos("\n\n", 2);
1.98 paf 340:
341: bool unix_header_break;
342: switch((dos_pos >= 0?10:00) + (unix_pos >= 0?01:00)) {
343: case 10: // dos
344: unix_header_break=false;
345: break;
346: case 01: // unix
347: unix_header_break=true;
348: break;
349: case 11: // dos & unix
350: unix_header_break=unix_pos<dos_pos;
351: break;
352: default: // 00
353: unix_header_break=false; // calm down, compiler
1.74 paf 354: throw Exception(0,
1.107.2.6 paf 355: method_name,
1.90 paf 356: "output does not contain CGI header; "
357: "exit status=%d; stdoutsize=%u; stdout: \"%s\"; stderrsize=%u; stderr: \"%s\"",
1.107.2.7 paf 358: execution.status,
359: (uint)execution.out->size(), execution.out->cstr(),
360: (uint)execution.err->size(), execution.err->cstr());
1.98 paf 361: break; //never reached
362: }
363:
364: int header_break_pos;
365: if(unix_header_break) {
366: header_break_pos=unix_pos;
367: eol_marker="\n"; eol_marker_size=1;
368: } else {
369: header_break_pos=dos_pos;
370: eol_marker="\r\n"; eol_marker_size=2;
1.41 parser 371: }
1.21 paf 372:
1.107.2.7 paf 373: header=execution.out->mid(0, header_break_pos);
374: body=execution.out->mid(header_break_pos+eol_marker_size*2, execution.out->size());
1.29 paf 375: }
1.41 parser 376: // body
1.107.2.7 paf 377: self.set(pool, false/*not tainted*/, body->cstr(), body->size());
1.94 paf 378:
379: // $fields << header
1.98 paf 380: if(header && eol_marker) {
1.107.2.7 paf 381: ArrayString rows;
1.94 paf 382: header->split(rows, 0, eol_marker, eol_marker_size);
1.107.2.7 paf 383: Pass_cgi_header_attribute_info info;
384: info.pool=&pool;
385: info.charset=&r.charsets.source();
386: info.fields=&self.fields();
1.94 paf 387: rows.for_each(pass_cgi_header_attribute, &info);
388: if(info.content_type)
1.107.2.7 paf 389: self.fields().put(content_type_name, info.content_type);
1.94 paf 390: }
1.21 paf 391:
1.42 parser 392: // $status
1.107.2.7 paf 393: self.fields().put(file_status_name, ValuePtr(new VInt(execution.status)));
1.21 paf 394:
395: // $stderr
1.107.2.7 paf 396: if(execution.err->size())
1.21 paf 397: self.fields().put(
1.107.2.7 paf 398: StringPtr(new String("stderr")),
399: ValuePtr(new VString(execution.err)));
1.21 paf 400: }
1.107.2.4 paf 401: static void _exec(Request& r, StringPtr method_name, MethodParams& params) {
1.41 parser 402: _exec_cgi(r, method_name, params, false);
403: }
1.107.2.4 paf 404: static void _cgi(Request& r, StringPtr method_name, MethodParams& params) {
1.41 parser 405: _exec_cgi(r, method_name, params, true);
406: }
407:
1.107.2.4 paf 408: static void _list(Request& r, StringPtr method_name, MethodParams& params) {
1.47 parser 409: Pool& pool=r.pool();
410:
1.107.2.7 paf 411: ValuePtr relative_path=params.as_no_junction(0, "path must not be code");
1.47 parser 412:
1.107.2.7 paf 413: StringPtr regexp;
1.47 parser 414: pcre *regexp_code;
1.81 paf 415: const int ovecsize=(1/*match*/)*3;
416: int ovector[ovecsize];
1.107.2.4 paf 417: if(params.count()>1) {
1.107.2.7 paf 418: regexp=params.as_no_junction(1, "regexp must not be code")->as_string(&pool);
1.47 parser 419:
1.107.2.3 paf 420: const char* pattern=regexp->cstr();
421: const char* errptr;
1.47 parser 422: int erroffset;
423: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
424: &errptr, &erroffset,
1.107.2.7 paf 425: r.charsets.source().pcre_tables);
1.47 parser 426:
427: if(!regexp_code)
1.74 paf 428: throw Exception(0,
1.107.2.7 paf 429: regexp->mid(erroffset, regexp->size()),
1.47 parser 430: "regular expression syntax error - %s", errptr);
431: } else
432: regexp_code=0;
433:
434:
1.107.2.7 paf 435: CharPtr absolute_path_cstr=r.absolute(relative_path->as_string(&pool))->
436: cstr(String::UL_FILE_SPEC);
1.47 parser 437:
1.107.2.7 paf 438: Table::columns_type columns(new ArrayString);
439: *columns+=StringPtr(new String("name"));
440: TablePtr table(new Table(method_name, columns));
1.47 parser 441:
442: LOAD_DIR(absolute_path_cstr,
1.107.2.7 paf 443: const char* file_name_cstr=ffblk.ff_name;
444: size_t file_name_size=strlen(file_name_cstr);
1.47 parser 445: bool suits=true;
446: if(regexp_code) {
447: int exec_result=pcre_exec(regexp_code, 0,
448: ffblk.ff_name, file_name_size, 0,
449: 0, ovector, ovecsize);
450:
451: if(exec_result==PCRE_ERROR_NOMATCH)
452: suits=false;
453: else if(exec_result<0) {
454: (*pcre_free)(regexp_code);
1.74 paf 455: throw Exception(0,
1.47 parser 456: regexp,
457: "regular expression execute (%d)",
458: exec_result);
459: }
460: }
461:
462: if(suits) {
1.107.2.7 paf 463: StringPtr file_name(new String);
464: file_name->APPEND_TAINTED(pool.copy(file_name_cstr, file_name_size), file_name_size,
1.107.2.6 paf 465: method_name->origin().file, method_name->origin().line);
1.47 parser 466:
1.107.2.7 paf 467: Table::element_type row(new ArrayString);
468: *row+=file_name;
469: *table+=row;
1.47 parser 470: }
471: );
472:
473: if(regexp_code)
1.107.2.7 paf 474: pcre_free(regexp_code);
1.47 parser 475:
1.60 parser 476: // write out result
1.107.2.7 paf 477: r.write_no_lang(ValuePtr(new VTable(table)));
1.47 parser 478: }
1.21 paf 479:
1.69 paf 480: #ifndef DOXYGEN
481: struct Lock_execute_body_info {
1.107.2.7 paf 482: Request* r;
483: ValuePtr body_code;
1.69 paf 484: };
485: #endif
1.107.2.7 paf 486: static void lock_execute_body(int , void *ainfo) {
487: Lock_execute_body_info& info=*static_cast<Lock_execute_body_info *>(ainfo);
1.69 paf 488: // execute body
1.107.2.7 paf 489: info.r->write_assign_lang(info.r->process(info.body_code));
1.69 paf 490: };
1.107.2.4 paf 491: static void _lock(Request& r, StringPtr method_name, MethodParams& params) {
1.107.2.7 paf 492: Lock_execute_body_info info;
493: info.r=&r;
494: StringPtr file_spec=r.absolute(params.as_string(0, "file name must be string"));
495: info.body_code=params.as_junction(1, "body must be code");
1.69 paf 496:
1.70 paf 497: file_write_action_under_lock(file_spec, "lock", lock_execute_body, &info);
1.69 paf 498: }
499:
1.107.2.3 paf 500: static int lastposafter(const String& s, int after, const char* substr, size_t substr_size, bool beforelast=false) {
1.89 paf 501: size_t size;
502: if(beforelast)
503: size=s.size();
504: int at;
505: while((at=s.pos(substr, substr_size, after))>=0) {
506: size_t newafter=at+substr_size/*skip substr*/;
507: if(beforelast && newafter==size)
508: break;
509: after=newafter;
510: }
511:
512: return after;
513: }
514:
1.107.2.4 paf 515: static void _find(Request& r, StringPtr method_name, MethodParams& params) {
1.90 paf 516: Pool& pool=r.pool();
1.107.2.7 paf 517: StringPtr file_name=params.as_no_junction(0, "file name must not be code")->as_string(&pool);
518: StringPtr file_spec;
519: if(file_name->first_char()=='/')
520: file_spec=file_name;
1.90 paf 521: else
1.107.2.7 paf 522: file_spec=r.relative(r.request_info.uri, file_name);
1.90 paf 523:
524: // easy way
1.107.2.7 paf 525: if(file_readable(r.absolute(file_spec))) {
1.96 paf 526: r.write_assign_lang(*file_spec);
1.90 paf 527: return;
528: }
529:
530: // monkey way
531: int after_base_slash=lastposafter(*file_spec, 0, "/", 1);
1.107.2.7 paf 532: StringPtr dirname=file_spec->mid(0, after_base_slash);
533: StringPtr basename=file_spec->mid(after_base_slash, file_spec->size());
1.90 paf 534:
535: int after_monkey_slash;
536: while((after_monkey_slash=lastposafter(*dirname, 0, "/", 1, true))>0) {
1.107.2.7 paf 537: StringPtr test_name(new String);
538: *test_name<<*(dirname=dirname->mid(0, after_monkey_slash));
539: *test_name<<basename;
540: if(file_readable(r.absolute(test_name))) {
541: r.write_assign_lang(*test_name);
1.90 paf 542: return;
543: }
544: }
545:
546: // no way, not found
1.107.2.4 paf 547: if(params.count()==2) {
1.107.2.7 paf 548: ValuePtr not_found_code=params.as_junction(1, "not-found param must be code");
1.90 paf 549: r.write_pass_lang(r.process(not_found_code));
550: }
551: }
552:
1.107.2.4 paf 553: static void _dirname(Request& r, StringPtr method_name, MethodParams& params) {
1.107.2.7 paf 554: StringPtr file_spec=params.as_string(0, "file name must be string");
1.89 paf 555: // /a/some.tar.gz > /a
556: // /a/b/ > /a
1.107.2.7 paf 557: int afterslash=lastposafter(*file_spec, 0, "/", 1, true);
1.89 paf 558: if(afterslash>0)
1.107.2.7 paf 559: r.write_assign_lang(*file_spec->mid(0, afterslash==1?1:afterslash-1));
1.89 paf 560: else
1.107.2.7 paf 561: r.write_assign_lang(String(".", 1));
1.89 paf 562: }
563:
1.107.2.4 paf 564: static void _basename(Request& r, StringPtr method_name, MethodParams& params) {
1.107.2.7 paf 565: StringPtr file_spec=params.as_string(0, "file name must be string");
1.89 paf 566: // /a/some.tar.gz > some.tar.gz
1.107.2.7 paf 567: int afterslash=lastposafter(*file_spec, 0, "/", 1);
568: r.write_assign_lang(*file_spec->mid(afterslash, file_spec->size()));
1.89 paf 569: }
570:
1.107.2.4 paf 571: static void _justname(Request& r, StringPtr method_name, MethodParams& params) {
1.107.2.7 paf 572: StringPtr file_spec=params.as_string(0, "file name must be string");
1.89 paf 573: // /a/some.tar.gz > some.tar
1.107.2.7 paf 574: int afterslash=lastposafter(*file_spec, 0, "/", 1);
575: int afterdot=lastposafter(*file_spec, afterslash, ".", 1);
576: r.write_assign_lang(*file_spec->mid(afterslash, afterdot!=afterslash?afterdot-1:file_spec->size()));
1.89 paf 577: }
1.107.2.4 paf 578: static void _justext(Request& r, StringPtr method_name, MethodParams& params) {
1.107.2.7 paf 579: StringPtr file_spec=params.as_string(0, "file name must be string");
1.89 paf 580: // /a/some.tar.gz > gz
1.107.2.7 paf 581: int afterdot=lastposafter(*file_spec, 0, ".", 1);
1.89 paf 582: if(afterdot>0)
1.107.2.7 paf 583: r.write_assign_lang(*file_spec->mid(afterdot, file_spec->size()));
1.89 paf 584: }
585:
1.107.2.4 paf 586: static void _fullpath(Request& r, StringPtr method_name, MethodParams& params) {
1.107.2.7 paf 587: StringPtr file_spec=params.as_string(0, "file name must be string");
588: StringPtr result(new String);
589: if(file_spec->first_char()=='/')
590: result=file_spec;
1.102 paf 591: else {
592: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
1.107.2.7 paf 593: StringPtr full_disk_path=r.absolute(file_spec);
594: size_t document_root_length=strlen(r.request_info.document_root);
1.106 paf 595:
596: if(document_root_length>0) {
1.107.2.7 paf 597: char last_char=r.request_info.document_root[document_root_length-1];
1.106 paf 598: if(last_char == '/' || last_char == '\\')
599: --document_root_length;
600: }
1.107.2.7 paf 601: result=full_disk_path->mid(document_root_length, full_disk_path->size());
1.102 paf 602: }
603: r.write_assign_lang(*result);
604: }
605:
1.89 paf 606:
1.32 paf 607: // constructor
608:
1.107.2.7 paf 609: MFile::MFile(): Methoded("file") {
1.48 parser 610: // ^save[mode;file-name]
611: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2);
1.7 paf 612:
613: // ^delete[file-name]
1.32 paf 614: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 615:
616: // ^move[from-file-name;to-file-name]
617: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 618:
1.48 parser 619: // ^load[mode;disk-name]
620: // ^load[mode;disk-name;user-name]
621: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3);
1.25 paf 622:
623: // ^stat[disk-name]
1.32 paf 624: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 625:
1.36 paf 626: // ^cgi[file-name]
627: // ^cgi[file-name;env hash]
628: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 629: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
630:
631: // ^exec[file-name]
632: // ^exec[file-name;env hash]
633: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
634: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 parser 635:
636: // ^file:list[path]
637: // ^file:list[path][regexp]
638: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
1.69 paf 639:
640: // ^file:lock[path]{code}
641: add_native_method("lock", Method::CT_STATIC, _lock, 2, 2);
1.90 paf 642:
643: // ^find[file-name]
644: // ^find[file-name]{when-not-found}
645: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.47 parser 646:
1.89 paf 647: // ^file:dirname[/a/some.tar.gz]=/a
648: // ^file:dirname[/a/b/]=/a
649: add_native_method("dirname", Method::CT_STATIC, _dirname, 1, 1);
650: // ^file:basename[/a/some.tar.gz]=some.tar.gz
651: add_native_method("basename", Method::CT_STATIC, _basename, 1, 1);
652: // ^file:justname[/a/some.tar.gz]=some.tar
653: add_native_method("justname", Method::CT_STATIC, _justname, 1, 1);
654: // ^file:justext[/a/some.tar.gz]=gz
655: add_native_method("justext", Method::CT_STATIC, _justext, 1, 1);
1.102 paf 656: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
657: add_native_method("fullpath", Method::CT_STATIC, _fullpath, 1, 1);
1.1 paf 658: }
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