debian-mirror-gitlab/app/assets/javascripts/mirrors/ssh_mirror.js

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import $ from 'jquery';
import _ from 'underscore';
import { __ } from '~/locale';
import axios from '~/lib/utils/axios_utils';
import Flash from '~/flash';
import { backOff } from '~/lib/utils/common_utils';
import AUTH_METHOD from './constants';
export default class SSHMirror {
constructor(formSelector) {
this.backOffRequestCounter = 0;
this.$form = $(formSelector);
this.$repositoryUrl = this.$form.find('.js-repo-url');
this.$knownHosts = this.$form.find('.js-known-hosts');
this.$sectionSSHHostKeys = this.$form.find('.js-ssh-host-keys-section');
this.$hostKeysInformation = this.$form.find('.js-fingerprint-ssh-info');
this.$btnDetectHostKeys = this.$form.find('.js-detect-host-keys');
this.$btnSSHHostsShowAdvanced = this.$form.find('.btn-show-advanced');
this.$dropdownAuthType = this.$form.find('.js-mirror-auth-type');
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this.$hiddenAuthType = this.$form.find('.js-hidden-mirror-auth-type');
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this.$wellAuthTypeChanging = this.$form.find('.js-well-changing-auth');
this.$wellPasswordAuth = this.$form.find('.js-well-password-auth');
}
init() {
this.handleRepositoryUrlInput(true);
this.$repositoryUrl.on('keyup', () => this.handleRepositoryUrlInput());
this.$knownHosts.on('keyup', e => this.handleSSHKnownHostsInput(e));
this.$dropdownAuthType.on('change', e => this.handleAuthTypeChange(e));
this.$btnDetectHostKeys.on('click', e => this.handleDetectHostKeys(e));
this.$btnSSHHostsShowAdvanced.on('click', e => this.handleSSHHostsAdvanced(e));
}
/**
* Method to monitor Git Repository URL input
*/
handleRepositoryUrlInput(forceMatch) {
const protocol = this.$repositoryUrl.val().split('://')[0];
const protRegEx = /http|git/;
// Validate URL and verify if it consists only supported protocols
if (forceMatch || this.$form.get(0).checkValidity()) {
const isSsh = protocol === 'ssh';
// Hide/Show SSH Host keys section only for SSH URLs
this.$sectionSSHHostKeys.collapse(isSsh ? 'show' : 'hide');
this.$btnDetectHostKeys.enable();
// Verify if URL is http, https or git and hide/show Auth type dropdown
// as we don't support auth type SSH for non-SSH URLs
const matchesProtocol = protRegEx.test(protocol);
this.$dropdownAuthType.attr('disabled', matchesProtocol);
if (forceMatch && isSsh) {
this.$dropdownAuthType.val(AUTH_METHOD.SSH);
this.toggleAuthWell(AUTH_METHOD.SSH);
} else {
this.$dropdownAuthType.val(AUTH_METHOD.PASSWORD);
this.toggleAuthWell(AUTH_METHOD.PASSWORD);
}
}
}
/**
* Click event handler to detect SSH Host key and fingerprints from
* provided Git Repository URL.
*/
handleDetectHostKeys() {
const projectMirrorSSHEndpoint = this.$form.data('project-mirror-ssh-endpoint');
const repositoryUrl = this.$repositoryUrl.val();
const currentKnownHosts = this.$knownHosts.val();
const $btnLoadSpinner = this.$btnDetectHostKeys.find('.js-spinner');
// Disable button while we make request
this.$btnDetectHostKeys.disable();
$btnLoadSpinner.removeClass('d-none');
// Make backOff polling to get data
backOff((next, stop) => {
axios
.get(
`${projectMirrorSSHEndpoint}?ssh_url=${repositoryUrl}&compare_host_keys=${encodeURIComponent(
currentKnownHosts,
)}`,
)
.then(({ data, status }) => {
if (status === 204) {
this.backOffRequestCounter += 1;
if (this.backOffRequestCounter < 3) {
next();
} else {
stop(data);
}
} else {
stop(data);
}
})
.catch(stop);
})
.then(res => {
$btnLoadSpinner.addClass('d-none');
// Once data is received, we show verification info along with Host keys and fingerprints
this.$hostKeysInformation
.find('.js-fingerprint-verification')
.collapse(res.host_keys_changed ? 'hide' : 'show');
if (res.known_hosts && res.fingerprints) {
this.showSSHInformation(res);
}
})
.catch(({ response }) => {
// Show failure message when there's an error and re-enable Detect host keys button
const failureMessage = response.data
? response.data.message
: __('An error occurred while detecting host keys');
Flash(failureMessage);
$btnLoadSpinner.addClass('hidden');
this.$btnDetectHostKeys.enable();
});
}
/**
* Method to monitor known hosts textarea input
*/
handleSSHKnownHostsInput() {
// Strike-out fingerprints and remove verification info if `known hosts` value is altered
this.$hostKeysInformation.find('.js-fingerprints-list').addClass('invalidate');
this.$hostKeysInformation.find('.js-fingerprint-verification').collapse('hide');
}
/**
* Click event handler for `Show advanced` button under SSH Host keys section
*/
handleSSHHostsAdvanced() {
const $knownHost = this.$sectionSSHHostKeys.find('.js-ssh-known-hosts');
const toggleShowAdvanced = $knownHost.hasClass('show');
$knownHost.collapse('toggle');
this.$btnSSHHostsShowAdvanced.toggleClass('show-advanced', toggleShowAdvanced);
}
/**
* Authentication method dropdown change event listener
*/
handleAuthTypeChange() {
const selectedAuthType = this.$dropdownAuthType.val();
this.$wellPasswordAuth.collapse('hide');
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this.updateHiddenAuthType(selectedAuthType);
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this.toggleAuthWell(selectedAuthType);
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}
/**
* Method to parse SSH Host keys data and render it
* under SSH host keys section
*/
showSSHInformation(sshHostKeys) {
const $fingerprintsList = this.$hostKeysInformation.find('.js-fingerprints-list');
let fingerprints = '';
sshHostKeys.fingerprints.forEach(fingerprint => {
const escFingerprints = _.escape(fingerprint.fingerprint);
fingerprints += `<code>${escFingerprints}</code>`;
});
this.$hostKeysInformation.collapse('show');
$fingerprintsList.removeClass('invalidate');
$fingerprintsList.html(fingerprints);
this.$sectionSSHHostKeys.find('.js-known-hosts').val(sshHostKeys.known_hosts);
}
/**
* Toggle Auth type information container based on provided `authType`
*/
toggleAuthWell(authType) {
this.$wellPasswordAuth.collapse(authType === AUTH_METHOD.PASSWORD ? 'show' : 'hide');
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this.updateHiddenAuthType(authType);
}
updateHiddenAuthType(authType) {
this.$hiddenAuthType.val(authType);
this.$hiddenAuthType.prop('disabled', authType === AUTH_METHOD.SSH);
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}
destroy() {
this.$repositoryUrl.off('keyup');
this.$form.find('.js-known-hosts').off('keyup');
this.$dropdownAuthType.off('change');
this.$btnDetectHostKeys.off('click');
this.$btnSSHHostsShowAdvanced.off('click');
}
}