portainer/app/docker/rest/response/handlers.js

82 lines
2.7 KiB
JavaScript

function isJSONArray(jsonString) {
return Object.prototype.toString.call(jsonString) === '[object Array]';
}
function isJSON(jsonString) {
try {
var o = JSON.parse(jsonString);
if (o && typeof o === 'object') {
return o;
}
} catch (e) {
//empty
}
return false;
}
// The Docker API often returns a list of JSON object.
// This handler wrap the JSON objects in an array.
// Used by the API in: Image push, Image create, Events query.
export function jsonObjectsToArrayHandler(data) {
// catching empty data helps the function not to fail and prevents unwanted error message to user.
if (!data) {
return [];
}
var str = '[' + data.replace(/\n/g, ' ').replace(/\}\s*\{/g, '}, {') + ']';
return angular.fromJson(str);
}
// The Docker API often returns an empty string or a valid JSON object on success (Docker 1.9 -> Docker 1.12).
// On error, it returns either an error message as a string (Docker < 1.12) or a JSON object with the field message
// container the error (Docker = 1.12)
// This handler ensure a valid JSON object is returned in any case.
// Used by the API in: container deletion, network deletion, network creation, volume creation,
// container exec, exec resize.
export function genericHandler(data) {
var response = {};
// No data is returned when deletion is successful (Docker 1.9 -> 1.12)
if (!data) {
return response;
}
// A string is returned on failure (Docker < 1.12)
else if (!isJSON(data)) {
response.message = data;
}
// Docker 1.12 returns a valid JSON object when an error occurs
else {
response = angular.fromJson(data);
}
return response;
}
// The Docker API returns the logs as a single string.
// This handler wraps the data in a JSON object under the "logs" property.
export function logsHandler(data) {
return {
logs: data,
};
}
// Image delete API returns an array on success (Docker 1.9 -> Docker 1.12).
// On error, it returns either an error message as a string (Docker < 1.12) or a JSON object with the field message
// container the error (Docker = 1.12).
// This handler returns the original array on success or a newly created array containing
// only one JSON object with the field message filled with the error message on failure.
export function deleteImageHandler(data) {
// A string is returned on failure (Docker < 1.12)
var response = [];
if (!isJSON(data)) {
response.push({ message: data });
}
// A JSON object is returned on failure (Docker = 1.12)
else if (!isJSONArray(data)) {
var json = angular.fromJson(data);
response.push(json);
}
// An array is returned on success (Docker 1.9 -> 1.12)
else {
response = angular.fromJson(data);
}
return response;
}