(function() {
"use strict";
var u$ = require("./utils");
var cacheit = require("./cacheit");(function() {
"use strict";
var u$ = require("./utils");
var cacheit = require("./cacheit");subset of mime-db, 1.3k instead of 139k
var ext2mime = require("./ext2mime.json");
var _ = require("lodash/lang");
var SEARCH_TYPES = {
'R': function(pattern){
return new RegExp(pattern);
},//regex case sensitive
'r': function(pattern){
return new RegExp(pattern,'i');
},//regex case insensitive
'S': function(pattern){
return {
test: function(s){
return s.indexOf(pattern) > -1;
}};
},//contains
's': function(pattern){
var low_pattern = pattern.toLowerCase();
return {
test: function (s) {
return s.toLowerCase().indexOf(low_pattern) > -1;
}};
}};//contains case insensetive
function Search(s) {
if( ! SEARCH_TYPES.hasOwnProperty(s[0])) {
throw u$.error({ msg:'no such search type',
type: s[0], allowed:Object.keys(SEARCH_TYPES) } );
}
this.type = s[0];
this.pattern = s.substring(1);
this.matcher = SEARCH_TYPES[this.type](this.pattern);
}
Search.prototype.toString=function(){
return this.type + this.pattern;
};
Search.prototype.test=function(s){
return this.matcher.test(s);
};
function check(c, allowed){
if(allowed.indexOf(c) < 0){
throw u$.error({msg:'not allowed',
provided:c, allowed:allowed});
}
return c;
}
function Field(s){
this.and_or = 'A';
this.show_hide = 'S';
this.accending_descending = null ;
this.sort_index = null ;
this.searches = null;
if( _.isString(s) && s !== "" ){
this.and_or = check(s[0],['A','O']);
this.show_hide = check(s[1],['S','H']);
var i = 2;
if(['A','D'].indexOf(s[i]) > -1){
this.accending_descending = s[i];
while( ++i < s.length && s[i] >= '0' && s[i] <= '9');
this.sort_index = +s.substring(3,i);
}
var search_array = [] ;
var next_search = '' ;
for( ; i < s.length ; i++){
var c = s[i], nc = s[i+1];
if(c === ',' ){
if( nc === ',' ){
i++;
next_search+=c;
}else{
search_array.push(new Search(next_search));
next_search = '';
}
}else{
next_search+=c;
}
}
if(next_search.length){
search_array.push(new Search(next_search));
}
if(search_array.length){
this.searches = search_array;
}
}
}
function escape_commas(s){
if( s.indexOf(',') < 0){
return s;
}
var copy = '', c;
for(var i = 0 ; i < s.length; i++){
c = s[i];
copy += c ;
if( c == ',' ){
copy += c ;
}
}
return copy;
}
Field.prototype.test = function(s){
if( !this.searches ){
return true;
}
var i;
if( this.and_or === 'A' ){
for(i = 0 ; i < this.searches.length; i++ ){
if( !this.searches[i].test(s) ){
return false;
}
}
return true ;
}else{
for(i = 0 ; i < this.searches.length; i++ ){
if( this.searches[i].test(s) ){
return true;
}
}
return false;
}
};
Field.prototype.toString = function(){
var s = this.and_or + this.show_hide;
if( this.accending_descending && _.isNumber(this.sort_index) ){
s += this.accending_descending + this.sort_index;
}
if(this.searches && this.searches.length){
for(var i = 0 ; i < this.searches.length; i++){
if(i) s += ',';
s += escape_commas(this.searches[i].toString());
}
}
return s === 'AS' ? undefined : s;
};
function Params(input){
var self = this ;
input = input || '';
input.split('&').forEach(function(s){
if(s){
var key_val = s.split('=',2);
self[key_val[0]] = new Field(decodeURIComponent(key_val[1]));
}
});
}
Params.prototype.toString=function(){
var s = '';
for (var key in this) {
if (!this.hasOwnProperty(key) ) continue;
var v = this[key].toString() ;
if( v ){
if( s ){
s += '&' ;
}
s += key + '=' + encodeURIComponent(v) ;
}
}
return s ;
};
function WebPath(input){
function check_name(name){
if(name === '.' || name === '..' || name.indexOf('/') > -1 ){
throw u$.error({message: "path cannot include relative directory references"})
}
return name;
}
try{
if( _.isPlainObject(input) ){
this.name = check_name(input.name);
this.parent = input.parent;
this.dir = input.dir;
}else{
var array = input ;
if(_.isString(input)){
var posParams = input.indexOf('?');
if(posParams >= 0){
this.params = new Params(input.substring(posParams+1));
input = input.substring(0,posParams);
}
array = input.split('/');
this.name = check_name(array.pop());
if( this.name === "" ){
this.name = check_name(array.pop());
this.dir = true ;
}
}else{if it is not string that it is recursive call to init parent chain
this.name = check_name(array.pop()) ;
this.dir = true;
}
this.parent = array.length > 0 ? new WebPath(array) : null ;
}
}catch(e){
throw u$.error({input:input},e);
}
}
WebPath.prototype.child=function(name,dir){
if( !this.dir ){
throw u$.error('only directory can have children');
}else{
return new WebPath({
parent: this,
name: name,
dir: dir});
}
};
WebPath.prototype.link=cacheit('_link', function(){
return new u$.Link(this.path(), this.name);
});
WebPath.prototype.extension=cacheit('_ext', function(){
if( this.dir ){
return '/';
}else{
for( var i = this.name.length - 1 ; i > 0 ; i-- ){
if(this.name[i] === '.' ){
return this.name.substr(i+1).toLowerCase();
}
}
return null;
}
});
WebPath.prototype.mime=cacheit('_mime', function(){
return ext2mime[this.extension()] || ext2mime['*'];
});
WebPath.prototype.isRoot=function(){
return this.parent === null;
};
WebPath.prototype.path=cacheit('_path', function(){
return (this.isRoot() ? this.name : this.parent.path() + this.name) +
(this.dir ? '/' : '');
});
WebPath.prototype.enumerate=function(input){
input = input || [];
input.splice(0,0,this);
if(this.parent){
this.parent.enumerate(input);
}
return input;
};
WebPath.prototype.toString=function(){
if(this.params){
return this.path() + '?' + this.params.toString() ;
}
return this.path() ;
};
WebPath.ensurePath = function(path_or_str){
return ( path_or_str instanceof WebPath
? path_or_str
: (u$.isNullish(path_or_str)
? null
: new WebPath(path_or_str))
);
};
WebPath.Search = Search ;
WebPath.Params = Params ;
WebPath.Field = Field ;
module.exports = WebPath;
})();