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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 Errors = locreq("lib/response/error.js");
const Chip = locreq("lib/chip-types/chip.js");
function AccessStrategyType(app, declaration){
if (declaration instanceof AccessStrategyType){
return declaration;
} else if (typeof declaration === "string"){
return app.ChipManager.get_chip("access_strategy_type", declaration);
}
this.declaration = declaration;
this.checker_function = null;
this.name = declaration.name;
this.app = app;
if (declaration){
this.checker_function = declaration.checker_function === undefined ? null : declaration.checker_function.bind(this);
}
}
AccessStrategyType.type_name = "access_strategy_type";
AccessStrategyType.pure = {
check: function(declaration, context, params, item){
if (context.is_super){
return Promise.resolve();
}
return AccessStrategyType.pure.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);
}
});
},
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));
}
},
get_pre_aggregation_stage: function(declaration, context, params){
if(declaration.get_pre_aggregation_stage){
return Promise.resolve(declaration.get_pre_aggregation_stage(context, params));
}else{
return Promise.resolve([]);
}
}
};
AccessStrategyType.prototype = {
check(context, params, item){return AccessStrategyType.pure.check(this.declaration, context, params, item);},
is_item_sensitive(params){return AccessStrategyType.pure.is_item_sensitive(this.declaration, params);},
get_pre_aggregation_stage(context, params){return AccessStrategyType.pure.get_pre_aggregation_stage(this.declaration, context, params);},
};
module.exports = AccessStrategyType;

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