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access-strategy-type.js
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access-strategy-type.js
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"use strict";
const locreq = require("locreq")(__dirname);
const Promise = require("bluebird");
const Chip = require("./chip.js");
const Errors = locreq("lib/response/error.js");
const ChipManager = locreq("lib/chip-types/chip-manager.js");
function AccessStrategyType(declaration){
if (declaration instanceof AccessStrategyType){
return declaration;
} else if (typeof declaration === "string"){
return ChipManager.get_chip("access_strategy_type", declaration);
}
Chip.call(this, "access_strategy_type", declaration.name);
this.declaration = declaration;
this.checker_function = null;
this.name = declaration.name;
if (declaration){
this._process_declaration(declaration);
}
}
AccessStrategyType.prototype._process_declaration = function(declaration){
this.checker_function = declaration.checker_function === undefined ? null : declaration.checker_function;
};
AccessStrategyType.prototype.__is_item_sensitive = function(declaration, params){
if (typeof declaration.item_sensitive === "function"){
return Promise.resolve(declaration.item_sensitive(params));
} else {
return Promise.resolve(Boolean(declaration.item_sensitive));
}
};
AccessStrategyType.prototype.__check = function(declaration, context, params, item){
if (context.is_super){
return Promise.resolve();
}
return this.__is_item_sensitive(declaration, params)
.then(function(is_item_sensitive){
if (is_item_sensitive && item === undefined){
return Promise.resolve(undefined);
} else {
return Promise.try(function(){
return Promise.method(declaration.checker_function)(context, params, item)
.then(function(result){
if (result === false){
return Promise.reject("Access denied");
} else {
return Promise.resolve(result);
}
});
});
}
}).catch(function(error){
if (typeof error === "string"){
return Promise.reject(new Errors.BadContext(error));
} else {
return Promise.reject(error);
}
});
};
AccessStrategyType.prototype.is_item_sensitive = function(params){
return this.__is_item_sensitive(this.declaration, params);
};
AccessStrategyType.prototype.check = function(context, params, item){
return this.__check(this.declaration, context, params, item);
};
AccessStrategyType.type_name = "access_strategy_type";
module.exports = AccessStrategyType;

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