Annotation of parser3/src/classes/file.C, revision 1.107.2.16.2.17
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:
1.107.2.16.2. 7(paf 8:3): static const char* IDENT_FILE_C="$Date: 2003/04/16 14:19:16 $";
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:
1.107.2.12 paf 34: class MFile: public Methoded {
1.107.2.8 paf 35: public: // VStateless_class
36:
1.107.2.16.2. (paf 37:): Value* create_new_value() { return new VFile(); }
1.107.2.8 paf 38:
39: public: // Methoded
40: bool used_directly() { return true; }
41:
42: public:
43: MFile();
44:
45: };
46:
47: // global variable
48:
1.107.2.15 paf 49: DECLARE_CLASS_VAR(file, new MFile, 0);
1.107.2.8 paf 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:
1.107.2.16.2. (paf 99:): static const StringBody adate_name("adate");
100:): static const StringBody mdate_name("mdate");
101:): static const StringBody cdate_name("cdate");
1.107.2.7 paf 102:
1.1 paf 103: // methods
104:
1.107.2.16.2. 3(paf 105:3): static void _save(Request& r, MethodParams& params) {
106:3): Value& vmode_name=params. as_no_junction(0, "mode must not be code");
107:3): Value& vfile_name=params.as_no_junction(1, "file name must not be code");
1.4 paf 108:
1.7 paf 109: // save
1.107.2.16.2. (paf 110:): GET_SELF(r, VFile).save(r.absolute(vfile_name.as_string()),
111:): vmode_name.as_string()==TEXT_MODE_NAME);
1.7 paf 112: }
113:
1.107.2.16.2. 3(paf 114:3): static void _delete(Request& r, MethodParams& params) {
115:3): Value& vfile_name=params.as_no_junction(0, "file name must not be code");
1.7 paf 116:
117: // unlink
1.107.2.16.2. (paf 118:): file_delete(r.absolute(vfile_name.as_string()));
1.1 paf 119: }
120:
1.107.2.16.2. 3(paf 121:3): static void _move(Request& r, MethodParams& params) {
122:3): Value& vfrom_file_name=params.as_no_junction(0, "from file name must not be code");
123:3): Value& vto_file_name=params.as_no_junction(1, "to file name must not be code");
1.45 parser 124:
1.51 parser 125: // move
1.68 paf 126: file_move(
1.107.2.16.2. (paf 127:): r.absolute(vfrom_file_name.as_string()),
128:): r.absolute(vto_file_name.as_string()));
1.45 parser 129: }
130:
1.107.2.7 paf 131: static void _load_pass_param(
1.107.2.16.2. (paf 132:): HashStringValue::key_type key,
133:): HashStringValue::value_type value,
134:): HashStringValue *dest) {
1.107.2.7 paf 135: dest->put(key, value);
1.105 paf 136: }
1.107.2.16.2. 3(paf 137:3): static void _load(Request& r, MethodParams& params) {
138:3): Value& vmode_name=params. as_no_junction(0, "mode must not be code");
139:3): const String& lfile_name=r.absolute(params.as_no_junction(1, "file name must not be code").as_string());
140:3): Value* third_param=params.count()>2?¶ms.as_no_junction(2, "filename or options must not be code")
(paf 141:): :0;
142:): HashStringValue* third_param_hash=third_param?third_param->get_hash():0;
1(paf 143:3): size_t alt_filename_param_index=2;
1.104 paf 144: if(third_param_hash)
145: alt_filename_param_index++;
1.9 paf 146:
1.107.2.16.2. 5(paf 147:3): File_read_result file=file_read(r.charsets, lfile_name,
(paf 148:): vmode_name.as_string()==TEXT_MODE_NAME,
1.107.2.7 paf 149: third_param_hash
1.104 paf 150: );
1.9 paf 151:
1.107.2.16.2. 3(paf 152:3): const char *user_file_name=params.count()>alt_filename_param_index?
153:3): params.as_string(alt_filename_param_index, "filename must be string").cstr()
(paf 154:): :lfile_name.cstr(String::L_FILE_SPEC);
1.104 paf 155:
1.107.2.16.2. (paf 156:): Value* vcontent_type=0;
1.107.2.7 paf 157: if(file.headers)
158: vcontent_type=file.headers->get(content_type_name);
1.104 paf 159: if(!vcontent_type)
1.107.2.16.2. (paf 160:): vcontent_type=new VString(r.mime_type_of(user_file_name));
1.10 paf 161:
1.107.2.7 paf 162: VFile& self=GET_SELF(r, VFile);
1.107.2.16.2. (paf 163:): self.set(true/*tainted*/, file.str, file.length, user_file_name, vcontent_type);
1.107.2.7 paf 164: if(file.headers)
165: file.headers->for_each(_load_pass_param, &self.fields());
1.9 paf 166: }
167:
1.107.2.16.2. 3(paf 168:3): static void _stat(Request& r, MethodParams& params) {
169:3): Value& vfile_name=params.as_no_junction(0, "file name must not be code");
1.25 paf 170:
1.107.2.16.2. (paf 171:): const String& lfile_name=vfile_name.as_string();
1.25 paf 172:
1.40 parser 173: size_t size;
174: time_t atime, mtime, ctime;
175: file_stat(r.absolute(lfile_name),
176: size,
177: atime, mtime, ctime);
1.25 paf 178:
1.107.2.7 paf 179: VFile& self=GET_SELF(r, VFile);
1.107.2.16.2. (paf 180:): self.set(true/*tainted*/, 0/*no bytes*/, size);
1.107.2.7 paf 181: HashStringValue& ff=self.fields();
1.107.2.16.2. (paf 182:): ff.put(adate_name, new VDate(atime));
183:): ff.put(mdate_name, new VDate(mtime));
184:): ff.put(cdate_name, new VDate(ctime));
185:): ff.put(content_type_name, new VString(r.mime_type_of(lfile_name.cstr(String::L_FILE_SPEC))));
1.25 paf 186: }
187:
1.107.2.14 paf 188: static bool is_safe_env_key(const char* key) {
1.88 paf 189: if(strncasecmp(key, "HTTP_", 5)==0)
1.83 paf 190: return true;
1.87 paf 191: if(strncasecmp(key, "CGI_", 4)==0)
1.83 paf 192: return true;
193: for(int i=0; suexec_safe_env_lst[i]; i++) {
1.87 paf 194: if(strcasecmp(key, suexec_safe_env_lst[i])==0)
1.83 paf 195: return true;
196: }
197: return false;
198: }
1.90 paf 199: #ifndef DOXYGEN
200: struct Append_env_pair_info {
1.107.2.7 paf 201: HashStringString* env;
1.107.2.16.2. (paf 202:): Value* vstdin;
1.90 paf 203: };
204: #endif
1.107.2.7 paf 205: static void append_env_pair(
1.107.2.16.2. (paf 206:): HashStringValue::key_type akey,
207:): HashStringValue::value_type avalue,
208:): Append_env_pair_info *info) {
209:): if(akey==STDIN_EXEC_PARAM_NAME) {
1.107.2.7 paf 210: info->vstdin=avalue;
1.90 paf 211: } else {
1.107.2.16.2. (paf 212:): if(!is_safe_env_key(akey.cstr()))
1.90 paf 213: throw Exception("parser.runtime",
1.107.2.16.2. (paf 214:): new String(akey, String::L_TAINTED),
1.90 paf 215: "not safe environment variable");
1.107.2.16.2. (paf 216:): info->env->put(akey, avalue->as_string());
1.90 paf 217: }
1.22 paf 218: }
1.94 paf 219: #ifndef DOXYGEN
220: struct Pass_cgi_header_attribute_info {
1.107.2.7 paf 221: Charset* charset;
222: HashStringValue* fields;
1.107.2.16.2. (paf 223:): Value* content_type;
1.94 paf 224: };
225: #endif
1.107.2.7 paf 226: static void pass_cgi_header_attribute(
1.107.2.16.2. (paf 227:): ArrayString::element_type astring,
228:): Pass_cgi_header_attribute_info* info) {
0(paf 229:3): size_t colon_pos=astring->pos(':');
(paf 230:): if(colon_pos==STRING_NOT_FOUND) {
231:): const String& key=astring->mid(0, colon_pos).change_case(
232:): *info->charset, String::CC_UPPER);
233:): Value* value=new VString(astring->mid(colon_pos+1, astring->length()));
1.107.2.7 paf 234: info->fields->put(key, value);
1.107.2.16.2. (paf 235:): if(key=="CONTENT-TYPE")
1.107.2.7 paf 236: info->content_type=value;
1.94 paf 237: }
1.29 paf 238: }
1.90 paf 239: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.107.2.16.2. 3(paf 240:3): static void _exec_cgi(Request& r, MethodParams& params,
1.41 parser 241: bool cgi) {
1.21 paf 242:
1.107.2.16.2. 3(paf 243:3): Value& vfile_name=params.as_no_junction(0, "file name must not be code");
1.21 paf 244:
1.107.2.16.2. (paf 245:): const String& script_name=r.absolute(vfile_name.as_string());
1.23 paf 246:
1.107.2.7 paf 247: HashStringString env;
1.62 paf 248: #define ECSTR(name, value_cstr) \
1.107.2.7 paf 249: if(value_cstr) \
250: env.put( \
1.107.2.16.2. (paf 251:): StringBody(#name), \
252:): StringBody(value_cstr)); \
1.82 paf 253: // passing SAPI::environment
1.107.2.16.2. (paf 254:): if(const char *const *pairs=SAPI::environment(r.sapi_info)) {
1.107.2.3 paf 255: while(const char* pair=*pairs++)
1.107.2.7 paf 256: if(const char* eq_at=strchr(pair, '='))
257: env.put(
1.107.2.16.2. (paf 258:): StringBody(pair, eq_at-pair),
259:): StringBody(eq_at+1));
1.82 paf 260: }
261:
1.23 paf 262: // const
1.63 paf 263: ECSTR(GATEWAY_INTERFACE, "CGI/1.1");
1.23 paf 264: // from Request.info
1.107.2.7 paf 265: ECSTR(DOCUMENT_ROOT, r.request_info.document_root);
266: ECSTR(PATH_TRANSLATED, r.request_info.path_translated);
267: ECSTR(REQUEST_METHOD, r.request_info.method);
268: ECSTR(QUERY_STRING, r.request_info.query_string);
269: ECSTR(REQUEST_URI, r.request_info.uri);
270: ECSTR(CONTENT_TYPE, r.request_info.content_type);
1.23 paf 271: char content_length_cstr[MAX_NUMBER];
1.107.2.7 paf 272: snprintf(content_length_cstr, MAX_NUMBER, "%u", r.request_info.content_length);
273: //String content_length(content_length_cstr);
1.62 paf 274: ECSTR(CONTENT_LENGTH, content_length_cstr);
1.82 paf 275: // SCRIPT_*
1.107.2.16.2. (paf 276:): env.put(StringBody("SCRIPT_NAME"), script_name);
277:): //env.put(StringBody("SCRIPT_FILENAME"), ??&script_name);
1.23 paf 278:
1.103 paf 279: bool stdin_specified=false;
1.90 paf 280: // environment & stdin from param
1.107.2.7 paf 281: String in;
1.107.2.16.2. 3(paf 282:3): if(params.count()>1) {
283:3): Value& venv=params.as_no_junction(1, "env must not be code");
(paf 284:): if(HashStringValue* user_env=venv.get_hash()) {
6(paf 285:3): Append_env_pair_info info={&env};
1.90 paf 286: user_env->for_each(append_env_pair, &info);
1.103 paf 287: if(info.vstdin) {
288: stdin_specified=true;
1.107.2.16.2. (paf 289:): if(const String* sstdin=info.vstdin->get_string()) {
290:): in.append(*sstdin, String::L_CLEAN, true);
1.103 paf 291: } else
1.107.2.16.2. (paf 292:): if(VFile* vfile=static_cast<VFile *>(info.vstdin->as("file", false)))
4(paf 293:3): in.append_know_length((const char* )vfile->value_ptr(), vfile->value_size(), String::L_TAINTED);
1.100 paf 294: else
295: throw Exception("parser.runtime",
1.107.2.16.2. (paf 296:): 0,
1.100 paf 297: STDIN_EXEC_PARAM_NAME " parameter must be string or file");
1.103 paf 298: }
1.90 paf 299: }
1.21 paf 300: }
301:
1.90 paf 302: // argv from params
1.107.2.7 paf 303: ArrayString argv;
1.107.2.16.2. 3(paf 304:3): if(params.count()>2) {
305:3): for(size_t i=2; i<params.count(); i++)
306:3): argv+=¶ms.as_string(i, "parameter must be string");
1.21 paf 307: }
308:
1.90 paf 309: // passing POST data
1.107.2.16.2. 2(paf 310:3): if(!stdin_specified) // if $.stdin[...] not specified @todo zeroterminate post_data!
4(paf 311:3): in.append_know_length(r.request_info.post_data, r.request_info.post_size, String::L_CLEAN);
1.90 paf 312:
313: // exec!
1.107.2.7 paf 314: PA_exec_result execution=
1.107.2.16.2. (paf 315:): pa_exec(false/*forced_allow*/, script_name, &env, argv, in);
1.21 paf 316:
1.107.2.7 paf 317: VFile& self=GET_SELF(r, VFile);
1.21 paf 318:
1.107.2.16.2. (paf 319:): const String* body=&execution.out; // ^file:exec
320:): Value* content_type=0;
1.107.2.3 paf 321: const char* eol_marker=0; size_t eol_marker_size;
1.107.2.16.2. (paf 322:): const String* header=0;
1.41 parser 323: if(cgi) { // ^file:cgi
324: // construct with 'out' body and header
1.107.2.16.2. (paf 325:): size_t dos_pos=execution.out.pos("\r\n\r\n", 4);
326:): size_t unix_pos=execution.out.pos("\n\n", 2);
1.98 paf 327:
328: bool unix_header_break;
1.107.2.16.2. (paf 329:): switch((dos_pos!=STRING_NOT_FOUND?10:00) + (unix_pos!=STRING_NOT_FOUND?01:00)) {
1.98 paf 330: case 10: // dos
331: unix_header_break=false;
332: break;
333: case 01: // unix
334: unix_header_break=true;
335: break;
336: case 11: // dos & unix
337: unix_header_break=unix_pos<dos_pos;
338: break;
339: default: // 00
340: unix_header_break=false; // calm down, compiler
1.74 paf 341: throw Exception(0,
1.107.2.16.2. (paf 342:): 0,
1.90 paf 343: "output does not contain CGI header; "
344: "exit status=%d; stdoutsize=%u; stdout: \"%s\"; stderrsize=%u; stderr: \"%s\"",
1.107.2.7 paf 345: execution.status,
1.107.2.16.2. (paf 346:): (uint)execution.out.length(), execution.out.cstr(),
347:): (uint)execution.err.length(), execution.err.cstr());
1.98 paf 348: break; //never reached
349: }
350:
351: int header_break_pos;
352: if(unix_header_break) {
353: header_break_pos=unix_pos;
354: eol_marker="\n"; eol_marker_size=1;
355: } else {
356: header_break_pos=dos_pos;
357: eol_marker="\r\n"; eol_marker_size=2;
1.41 parser 358: }
1.21 paf 359:
1.107.2.16.2. (paf 360:): header=&execution.out.mid(0, header_break_pos);
361:): body=&execution.out.mid(header_break_pos+eol_marker_size*2, execution.out.length());
1.29 paf 362: }
1.41 parser 363: // body
1.107.2.16.2. (paf 364:): self.set(false/*not tainted*/, body->cstr(), body->length());
1.94 paf 365:
366: // $fields << header
1.98 paf 367: if(header && eol_marker) {
1.107.2.7 paf 368: ArrayString rows;
1.107.2.16.2. (paf 369:): size_t pos_after=0;
370:): header->split(rows, pos_after, eol_marker);
1.107.2.7 paf 371: Pass_cgi_header_attribute_info info;
372: info.charset=&r.charsets.source();
373: info.fields=&self.fields();
1.94 paf 374: rows.for_each(pass_cgi_header_attribute, &info);
375: if(info.content_type)
1.107.2.7 paf 376: self.fields().put(content_type_name, info.content_type);
1.94 paf 377: }
1.21 paf 378:
1.42 parser 379: // $status
1.107.2.16.2. (paf 380:): self.fields().put(file_status_name, new VInt(execution.status));
1.21 paf 381:
382: // $stderr
1.107.2.16.2. (paf 383:): if(execution.err.length())
1.21 paf 384: self.fields().put(
1.107.2.16.2. (paf 385:): StringBody("stderr"),
386:): new VString(execution.err));
1.21 paf 387: }
1.107.2.16.2. 3(paf 388:3): static void _exec(Request& r, MethodParams& params) {
(paf 389:): _exec_cgi(r, params, false);
1.41 parser 390: }
1.107.2.16.2. 3(paf 391:3): static void _cgi(Request& r, MethodParams& params) {
(paf 392:): _exec_cgi(r, params, true);
1.41 parser 393: }
394:
1.107.2.16.2. 3(paf 395:3): static void _list(Request& r, MethodParams& params) {
396:3): Value& relative_path=params.as_no_junction(0, "path must not be code");
1.47 parser 397:
1.107.2.16.2. (paf 398:): const String* regexp;
1.47 parser 399: pcre *regexp_code;
1.81 paf 400: const int ovecsize=(1/*match*/)*3;
401: int ovector[ovecsize];
1.107.2.16.2. 3(paf 402:3): if(params.count()>1) {
403:3): regexp=¶ms.as_no_junction(1, "regexp must not be code").as_string();
1.47 parser 404:
1.107.2.16.2. (paf 405:): const char* pattern=regexp->cstr();
1.107.2.3 paf 406: const char* errptr;
1.47 parser 407: int erroffset;
408: regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL,
409: &errptr, &erroffset,
1.107.2.7 paf 410: r.charsets.source().pcre_tables);
1.47 parser 411:
412: if(!regexp_code)
1.74 paf 413: throw Exception(0,
1.107.2.16.2. (paf 414:): ®exp->mid(erroffset, regexp->length()),
1.47 parser 415: "regular expression syntax error - %s", errptr);
416: } else
417: regexp_code=0;
418:
419:
1.107.2.16.2. (paf 420:): const char* absolute_path_cstr=r.absolute(relative_path.as_string()).cstr(String::L_FILE_SPEC);
1.47 parser 421:
1.107.2.7 paf 422: Table::columns_type columns(new ArrayString);
1.107.2.16.2. (paf 423:): *columns+=new String("name");
424:): Table& table=*new Table(columns);
1.47 parser 425:
426: LOAD_DIR(absolute_path_cstr,
1.107.2.7 paf 427: const char* file_name_cstr=ffblk.ff_name;
428: size_t file_name_size=strlen(file_name_cstr);
1.47 parser 429: bool suits=true;
430: if(regexp_code) {
431: int exec_result=pcre_exec(regexp_code, 0,
432: ffblk.ff_name, file_name_size, 0,
433: 0, ovector, ovecsize);
434:
435: if(exec_result==PCRE_ERROR_NOMATCH)
436: suits=false;
437: else if(exec_result<0) {
438: (*pcre_free)(regexp_code);
1.74 paf 439: throw Exception(0,
1.47 parser 440: regexp,
441: "regular expression execute (%d)",
442: exec_result);
443: }
444: }
445:
446: if(suits) {
1.107.2.7 paf 447: Table::element_type row(new ArrayString);
1.107.2.16.2. (paf 448:): *row+=new String(pa_strdup(file_name_cstr, file_name_size), file_name_size, true);
449:): table+=row;
1.47 parser 450: }
451: );
452:
453: if(regexp_code)
1.107.2.7 paf 454: pcre_free(regexp_code);
1.47 parser 455:
1.60 parser 456: // write out result
1.107.2.16.2. (paf 457:): r.write_no_lang(*new VTable(&table));
1.47 parser 458: }
1.21 paf 459:
1.69 paf 460: #ifndef DOXYGEN
461: struct Lock_execute_body_info {
1.107.2.7 paf 462: Request* r;
1.107.2.16.2. (paf 463:): Value* body_code;
1.69 paf 464: };
465: #endif
1.107.2.7 paf 466: static void lock_execute_body(int , void *ainfo) {
467: Lock_execute_body_info& info=*static_cast<Lock_execute_body_info *>(ainfo);
1.69 paf 468: // execute body
1.107.2.16.2. (paf 469:): info.r->write_assign_lang(info.r->process(*info.body_code));
1.69 paf 470: };
1.107.2.16.2. 3(paf 471:3): static void _lock(Request& r, MethodParams& params) {
1.107.2.7 paf 472: Lock_execute_body_info info;
473: info.r=&r;
1.107.2.16.2. 3(paf 474:3): const String& file_spec=r.absolute(params.as_string(0, "file name must be string"));
475:3): info.body_code=¶ms.as_junction(1, "body must be code");
1.69 paf 476:
1.70 paf 477: file_write_action_under_lock(file_spec, "lock", lock_execute_body, &info);
1.69 paf 478: }
479:
1.107.2.16.2. (paf 480:): static int lastposafter(const String& s, size_t after, const char* substr, size_t substr_size, bool beforelast=false) {
1.89 paf 481: size_t size;
482: if(beforelast)
1.107.2.16.2. (paf 483:): size=s.length();
1.89 paf 484: int at;
1.107.2.16.2. 7(paf 485:3): while((at=s.pos(StringBody(substr, substr_size), after))!=STRING_NOT_FOUND) {
1.89 paf 486: size_t newafter=at+substr_size/*skip substr*/;
487: if(beforelast && newafter==size)
488: break;
489: after=newafter;
490: }
491:
492: return after;
493: }
494:
1.107.2.16.2. 3(paf 495:3): static void _find(Request& r, MethodParams& params) {
496:3): const String& file_name=params.as_no_junction(0, "file name must not be code").as_string();
(paf 497:): const String* file_spec;
498:): if(file_name.first_char()=='/')
499:): file_spec=&file_name;
1.90 paf 500: else
1.107.2.16.2. (paf 501:): file_spec=&r.relative(r.request_info.uri, file_name);
1.90 paf 502:
503: // easy way
1.107.2.16.2. (paf 504:): if(file_readable(r.absolute(*file_spec))) {
1.96 paf 505: r.write_assign_lang(*file_spec);
1.90 paf 506: return;
507: }
508:
509: // monkey way
510: int after_base_slash=lastposafter(*file_spec, 0, "/", 1);
1.107.2.16.2. (paf 511:): const String* dirname=&file_spec->mid(0, after_base_slash);
512:): const String& basename=file_spec->mid(after_base_slash, file_spec->length());
1.90 paf 513:
514: int after_monkey_slash;
515: while((after_monkey_slash=lastposafter(*dirname, 0, "/", 1, true))>0) {
1.107.2.16.2. (paf 516:): String test_name;
517:): test_name<<*(dirname=&dirname->mid(0, after_monkey_slash));
518:): test_name<<basename;
1.107.2.7 paf 519: if(file_readable(r.absolute(test_name))) {
1.107.2.16.2. (paf 520:): r.write_assign_lang(test_name);
1.90 paf 521: return;
522: }
523: }
524:
525: // no way, not found
1.107.2.16.2. 3(paf 526:3): if(params.count()==2) {
527:3): Value& not_found_code=params.as_junction(1, "not-found param must be code");
1.90 paf 528: r.write_pass_lang(r.process(not_found_code));
529: }
530: }
531:
1.107.2.16.2. 3(paf 532:3): static void _dirname(Request& r, MethodParams& params) {
533:3): const String& file_spec=params.as_string(0, "file name must be string");
1.89 paf 534: // /a/some.tar.gz > /a
535: // /a/b/ > /a
1.107.2.16.2. (paf 536:): int afterslash=lastposafter(file_spec, 0, "/", 1, true);
1.89 paf 537: if(afterslash>0)
1.107.2.16.2. (paf 538:): r.write_assign_lang(file_spec.mid(0, afterslash==1?1:afterslash-1));
1.89 paf 539: else
1.107.2.7 paf 540: r.write_assign_lang(String(".", 1));
1.89 paf 541: }
542:
1.107.2.16.2. 3(paf 543:3): static void _basename(Request& r, MethodParams& params) {
544:3): const String& file_spec=params.as_string(0, "file name must be string");
1.89 paf 545: // /a/some.tar.gz > some.tar.gz
1.107.2.16.2. (paf 546:): int afterslash=lastposafter(file_spec, 0, "/", 1);
547:): r.write_assign_lang(file_spec.mid(afterslash, file_spec.length()));
1.89 paf 548: }
549:
1.107.2.16.2. 3(paf 550:3): static void _justname(Request& r, MethodParams& params) {
551:3): const String& file_spec=params.as_string(0, "file name must be string");
1.89 paf 552: // /a/some.tar.gz > some.tar
1.107.2.16.2. (paf 553:): int afterslash=lastposafter(file_spec, 0, "/", 1);
554:): int afterdot=lastposafter(file_spec, afterslash, ".", 1);
555:): r.write_assign_lang(file_spec.mid(afterslash, afterdot!=afterslash?afterdot-1:file_spec.length()));
1.89 paf 556: }
1.107.2.16.2. 3(paf 557:3): static void _justext(Request& r, MethodParams& params) {
558:3): const String& file_spec=params.as_string(0, "file name must be string");
1.89 paf 559: // /a/some.tar.gz > gz
1.107.2.16.2. (paf 560:): int afterdot=lastposafter(file_spec, 0, ".", 1);
1.89 paf 561: if(afterdot>0)
1.107.2.16.2. (paf 562:): r.write_assign_lang(file_spec.mid(afterdot, file_spec.length()));
1.89 paf 563: }
564:
1.107.2.16.2. 3(paf 565:3): static void _fullpath(Request& r, MethodParams& params) {
566:3): const String& file_spec=params.as_string(0, "file name must be string");
(paf 567:): const String* result;
568:): if(file_spec.first_char()=='/')
569:): result=&file_spec;
1.102 paf 570: else {
571: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
1.107.2.16.2. (paf 572:): const String& full_disk_path=r.absolute(file_spec);
1.107.2.7 paf 573: size_t document_root_length=strlen(r.request_info.document_root);
1.106 paf 574:
575: if(document_root_length>0) {
1.107.2.7 paf 576: char last_char=r.request_info.document_root[document_root_length-1];
1.106 paf 577: if(last_char == '/' || last_char == '\\')
578: --document_root_length;
579: }
1.107.2.16.2. (paf 580:): result=&full_disk_path.mid(document_root_length, full_disk_path.length());
1.102 paf 581: }
582: r.write_assign_lang(*result);
583: }
584:
1.89 paf 585:
1.32 paf 586: // constructor
587:
1.107.2.7 paf 588: MFile::MFile(): Methoded("file") {
1.48 parser 589: // ^save[mode;file-name]
590: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2);
1.7 paf 591:
592: // ^delete[file-name]
1.32 paf 593: add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
1.45 parser 594:
595: // ^move[from-file-name;to-file-name]
596: add_native_method("move", Method::CT_STATIC, _move, 2, 2);
1.8 paf 597:
1.48 parser 598: // ^load[mode;disk-name]
599: // ^load[mode;disk-name;user-name]
600: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3);
1.25 paf 601:
602: // ^stat[disk-name]
1.32 paf 603: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 604:
1.36 paf 605: // ^cgi[file-name]
606: // ^cgi[file-name;env hash]
607: // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s]
1.41 parser 608: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10);
609:
610: // ^exec[file-name]
611: // ^exec[file-name;env hash]
612: // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
613: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10);
1.47 parser 614:
615: // ^file:list[path]
616: // ^file:list[path][regexp]
617: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
1.69 paf 618:
619: // ^file:lock[path]{code}
620: add_native_method("lock", Method::CT_STATIC, _lock, 2, 2);
1.90 paf 621:
622: // ^find[file-name]
623: // ^find[file-name]{when-not-found}
624: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.47 parser 625:
1.89 paf 626: // ^file:dirname[/a/some.tar.gz]=/a
627: // ^file:dirname[/a/b/]=/a
628: add_native_method("dirname", Method::CT_STATIC, _dirname, 1, 1);
629: // ^file:basename[/a/some.tar.gz]=some.tar.gz
630: add_native_method("basename", Method::CT_STATIC, _basename, 1, 1);
631: // ^file:justname[/a/some.tar.gz]=some.tar
632: add_native_method("justname", Method::CT_STATIC, _justname, 1, 1);
633: // ^file:justext[/a/some.tar.gz]=gz
634: add_native_method("justext", Method::CT_STATIC, _justext, 1, 1);
1.102 paf 635: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
636: add_native_method("fullpath", Method::CT_STATIC, _fullpath, 1, 1);
1.1 paf 637: }
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