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webssh
mirror of https://github.com/huashengdun/webssh
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Updated main.js

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pull/26/head
Sheng 6 years ago
parent f4351318ec
commit 4d77a6a076
1 changed files with 129 additions and 97 deletions
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212
webssh/static/js/main.js
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@ -10,6 +10,7 @@ jQuery(function($){
style = {},
title_text = 'WebSSH',
title_element = document.querySelector('title'),
debug = !document.querySelector('#hostname').required,
DISCONNECTED = 0,
CONNECTING = 1,
CONNECTED = 2,
@ -17,7 +18,7 @@ jQuery(function($){
messages = {1: 'This client is connecting ...', 2: 'This client is already connnected.'},
key_max_size = 16384,
form_id = '#connect',
names = ['hostname', 'port', 'username', 'password'],
fields = ['hostname', 'port', 'username', 'password'],
hostname_tester = /((^\s*((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]))\s*$)|(^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$))|(^\s*((?=.{1,255}$)(?=.*[A-Za-z].*)[0-9A-Za-z](?:(?:[0-9A-Za-z]|\b-){0,61}[0-9A-Za-z])?(?:\.[0-9A-Za-z](?:(?:[0-9A-Za-z]|\b-){0,61}[0-9A-Za-z])?)*)\s*$)/;
@ -45,7 +46,7 @@ jQuery(function($){
}
}
restore_items(names);
restore_items(fields);
function parse_xterm_style() {
var text = $('.xterm-helpers style').text();
@ -111,20 +112,24 @@ jQuery(function($){
}
function log_status(text) {
status.text(text);
console.log(text);
}
function ajax_complete_callback(resp) {
btn.prop('disabled', false);
if (resp.status !== 200) {
console.log(resp);
status.text('Response code: ' + resp.status);
log_status(resp.status + ': ' + resp.statusText);
state = DISCONNECTED;
return;
}
var msg = resp.responseJSON;
if (msg.status) {
console.log(msg);
status.text(msg.status);
log_status(msg.status);
state = DISCONNECTED;
return;
}
@ -133,16 +138,20 @@ jQuery(function($){
join = (ws_url[ws_url.length-1] === '/' ? '' : '/'),
url = ws_url + join + 'ws?id=' + msg.id,
sock = new window.WebSocket(url),
encoding, decoder,
encoding = 'utf-8',
decoder = new window.TextDecoder('utf-8'),
terminal = document.getElementById('#terminal'),
term = new window.Terminal({
cursorBlink: true,
});
console.log(url);
if (!msg.encoding) {
console.log('Unable to detect the default encoding of your server');
msg.encoding = encoding;
} else {
console.log('The deault encoding of your server is ' + msg.encoding);
// wssh.sock = sock;
// wssh.term = term;
}
function resize_terminal(term) {
var geometry = current_geometry();
@ -161,14 +170,14 @@ jQuery(function($){
function set_encoding(new_encoding) {
// for console use
if (new_encoding === undefined) {
if (!new_encoding) {
console.log('An encoding is required');
return;
}
try {
decoder = new window.TextDecoder(new_encoding);
encoding = new_encoding;
encoding = decoder.encoding;
console.log('Set encoding to ' + encoding);
} catch (RangeError) {
console.log('Unknown encoding ' + new_encoding);
@ -179,13 +188,13 @@ jQuery(function($){
set_encoding(msg.encoding);
wssh.window_geometry = function() {
wssh.geometry = function() {
// for console use
var geometry = current_geometry();
console.log('Current window geometry: ' + JSON.stringify(geometry));
};
wssh.websocket_send = function(data) {
wssh.send = function(data) {
// for console use
if (!sock) {
console.log('Websocket was already closed');
@ -201,6 +210,7 @@ jQuery(function($){
JSON.parse(data);
sock.send(data);
} catch (SyntaxError) {
data = data.trim() + '\r';
sock.send(JSON.stringify({'data': data}));
}
};
@ -214,7 +224,7 @@ jQuery(function($){
}
};
wssh.resize_terminal = function(cols, rows) {
wssh.resize = function(cols, rows) {
// for console use
if (term === undefined) {
console.log('Terminal was already destroryed');
@ -287,21 +297,62 @@ jQuery(function($){
}
function connect_without_options() {
if (state !== DISCONNECTED) {
console.log(messages[state]);
return;
function wrap_object(opts){
var obj = {};
obj.get = function(attr) {
return opts[attr] || '';
};
return obj;
}
function validate_form_data(data) {
var hostname = data.get('hostname'),
port = data.get('port'),
username = data.get('username'),
pk = data.get('privatekey'),
result = {'vaiid': false},
msg, size;
if (!hostname) {
msg = 'Need value hostname';
} else if (!port) {
msg = 'Need value port';
} else if (!username) {
msg = 'Need value username';
} else if (!hostname_tester.test(hostname)) {
msg = 'Invalid hostname: ' + hostname;
} else if (port <= 0 || port > 63335) {
msg = 'Invalid port: ' + port;
} else {
if (pk) {
size = pk.size || pk.length;
if (size > key_max_size) {
msg = 'Invalid private key: ' + pk.name || pk;
}
}
}
if (!msg || debug) {
result.valid = true;
msg = username + '@' + hostname + ':' + port;
}
result.msg = msg;
return result;
}
function connect_without_options() {
// use data from the form
var form = document.querySelector(form_id),
url = form.action,
data = new FormData(form),
hostname = data.get('hostname'),
port = data.get('port'),
username = data.get('username');
pk = data.get('privatekey');
function ajax_post() {
store_items(names, data);
store_items(fields, data);
status.text('');
btn.prop('disabled', true);
@ -315,88 +366,43 @@ jQuery(function($){
contentType: false,
processData: false
});
state = CONNECTING;
title_text = username + '@' + hostname + ':' + port;
}
if (!hostname || !port || !username) {
status.text('Fields hostname, port and username are all required.');
var result = validate_form_data(data);
if (!result.valid) {
log_status(result.msg);
return;
}
if (!hostname_tester.test(hostname)) {
status.text('Invalid hostname: ' + hostname);
return;
}
if (port <= 0 || port > 63335) {
status.text('Invalid port: ' + port);
return;
}
var pk = data.get('privatekey');
if (pk && pk.size) {
if (pk.size > key_max_size) {
console.log('Invalid private key: ' + pk.name);
} else {
if (pk && pk.size && !debug) {
read_file_as_text(pk, function(text) {
if (text === undefined) {
console.log('Invalid private key: ' + pk.name);
log_status('Invalid private key: ' + pk.name);
} else {
ajax_post();
}
});
}
} else {
ajax_post();
}
}
function connect_with_options(opts) {
if (state !== DISCONNECTED) {
console.log(messages[state]);
return;
return result.msg;
}
var form = document.querySelector(form_id),
xsrf = form.querySelector('input[name="_xsrf"]').value,
url = opts.url || form.action,
hostname = opts.hostname || '',
port = opts.port || '',
username = opts.username || '',
password = opts.password || '',
privatekey = opts.privatekey || '',
data = {
'_xsrf': xsrf,
'username': username,
'hostname': hostname,
'port': port,
'password': password,
'privatekey': privatekey
};
function connect_with_options(data) {
// use data from the arguments
var form = document.querySelector(form_id),
url = data.url || form.action,
_xsrf = form.querySelector('input[name="_xsrf"]');
if (!hostname || !port || !username) {
console.log('Fields hostname, port and username are all required.');
return;
}
if (!hostname_tester.test(hostname)) {
console.log('Invalid hostname: ' + hostname);
return;
}
if (port <= 0 || port > 63335) {
console.log('Invalid port: ' + port);
var result = validate_form_data(wrap_object(data));
if (!result.valid) {
console.log(result.msg);
return;
}
if (privatekey && privatekey.length > key_max_size) {
console.log('Invalid private key: ' + privatekey);
return;
}
data._xsrf = _xsrf.value;
$.ajax({
url: url,
@ -405,22 +411,48 @@ jQuery(function($){
complete: ajax_complete_callback
});
state = CONNECTING;
title_text = username + '@' + hostname + ':' + port;
return result.msg;
}
wssh.connect = function(opts) {
if (opts === undefined) {
connect_without_options();
} else {
connect_with_options(opts);
function connect(hostname, port, username, password, privatekey) {
// for console use
var result, opts;
if (state !== DISCONNECTED) {
console.log(messages[state]);
return;
}
if (hostname === undefined) {
result = connect_without_options();
} else {
if (typeof hostname === 'string') {
opts = {
hostname: hostname,
port: port,
username: username,
password: password,
privatekey: privatekey
};
} else {
opts = hostname;
}
result = connect_with_options(opts);
}
if (result) {
state = CONNECTING;
title_text = result;
}
}
wssh.connect = connect;
$(form_id).submit(function(event){
event.preventDefault();
connect_without_options();
connect();
});
});

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