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consul/ui/packages/consul-ui/app/utils/get-environment.js

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import { runInDebug } from '@ember/debug';
// 'environment' getter
// there are currently 3 levels of environment variables:
// 1. Those that can be set by the user by setting localStorage values
// 2. Those that can be set by the operator either via ui_config, or inferring
// from other server type properties (protocol)
// 3. Those that can be set only during development by adding cookie values
// via the browsers Web Inspector, or via the browsers hash (#COOKIE_NAME=1),
// which is useful for showing the UI with various settings enabled/disabled
export default function (config = {}, win = window, doc = document) {
// look at the hash in the URL and transfer anything after the hash into
// cookies to enable linking of the UI with various settings enabled
runInDebug(() => {
const cookies = function (str) {
return str
.split(';')
.map((item) => item.trim())
.filter((item) => item !== '')
.filter((item) => item.split('=').shift().startsWith('CONSUL_'));
};
// Define the function that reads in "Scenarios", parse and set cookies and set theme if specified.
// See https://github.com/hashicorp/consul/blob/main/ui/packages/consul-ui/docs/bookmarklets.mdx
win['Scenario'] = function (str = '') {
if (str.length > 0) {
cookies(str).forEach((item) => {
// this current outlier is the only one that
// 1. Toggles
// 2. Uses localStorage
// Once we have a user facing widget to do this, it can all go
if (item.startsWith('CONSUL_COLOR_SCHEME=')) {
const [, value] = item.split('=');
let current;
try {
current = JSON.parse(win.localStorage.getItem('consul:theme'));
} catch (e) {
current = {
'color-scheme': 'light',
};
}
win.localStorage.setItem(
'consul:theme',
`{"color-scheme": "${
value === '!' ? (current['color-scheme'] === 'light' ? 'dark' : 'light') : value
}"}`
);
} else {
doc.cookie = `${item};Path=/`;
}
});
win.location.hash = '';
location.reload();
} else {
str = cookies(doc.cookie).join(';');
const tab = win.open('', '_blank');
tab.document.write(
`<body><pre>${location.href}#${str}</pre><br /><a href="javascript:Scenario('${str}')">Scenario</a></body>`
);
}
};
if (
typeof win.location !== 'undefined' &&
typeof win.location.hash === 'string' &&
win.location.hash.length > 0
) {
win['Scenario'](win.location.hash.substr(1));
}
});
// Defines a function that reads in the cookies and parses the cookie keys.
const dev = function (str = doc.cookie) {
return str
.split(';')
.filter((item) => item !== '')
.map((item) => {
const [key, ...rest] = item.trim().split('=');
return [key, rest.join('=')];
});
};
const user = function (str) {
const item = win.localStorage.getItem(str);
return item === null ? undefined : item;
};
const getResourceFor = function (src) {
try {
return (
win.performance.getEntriesByType('resource').find((item) => {
return item.initiatorType === 'script' && src === item.name;
}) || {}
);
} catch (e) {
return {};
}
};
const operatorConfig = {
...config.operatorConfig,
...JSON.parse(doc.querySelector(`[data-${config.modulePrefix}-config]`).textContent),
};
const ui_config = operatorConfig.UIConfig || {};
const scripts = doc.getElementsByTagName('script');
// we use the currently executing script as a reference
// to figure out where we are for other things such as
// base url, api url etc
const currentSrc = scripts[scripts.length - 1].src;
let resource;
// TODO: Potentially use ui_config {}, for example
// turning off blocking queries if its a busy cluster
// forcing/providing amount of possible HTTP connections
// re-setting the base url for the API etc
const operator = function (str, env) {
let protocol, dashboards, provider, proxy;
switch (str) {
case 'CONSUL_NSPACES_ENABLED':
return typeof operatorConfig.NamespacesEnabled === 'undefined'
? false
: operatorConfig.NamespacesEnabled;
case 'CONSUL_SSO_ENABLED':
return typeof operatorConfig.SSOEnabled === 'undefined' ? false : operatorConfig.SSOEnabled;
case 'CONSUL_ACLS_ENABLED':
return typeof operatorConfig.ACLsEnabled === 'undefined'
? false
: operatorConfig.ACLsEnabled;
case 'CONSUL_PARTITIONS_ENABLED':
return typeof operatorConfig.PartitionsEnabled === 'undefined'
? false
: operatorConfig.PartitionsEnabled;
case 'CONSUL_PEERINGS_ENABLED':
return typeof operatorConfig.PeeringEnabled === 'undefined'
? false
: operatorConfig.PeeringEnabled;
case 'CONSUL_HCP_ENABLED':
return typeof operatorConfig.HCPEnabled === 'undefined' ? false : operatorConfig.HCPEnabled;
case 'CONSUL_DATACENTER_LOCAL':
return operatorConfig.LocalDatacenter;
case 'CONSUL_DATACENTER_PRIMARY':
return operatorConfig.PrimaryDatacenter;
case 'CONSUL_HCP_MANAGED_RUNTIME':
return operatorConfig.HCPManagedRuntime;
case 'CONSUL_API_PREFIX':
// we want API prefix to look like an env var for if we ever change
// operator config to be an API request, we need this variable before we
// make and API request so this specific variable should never be be
// retrived via an API request
return operatorConfig.APIPrefix;
case 'CONSUL_HCP_URL':
return operatorConfig.HCPURL;
case 'CONSUL_UI_CONFIG':
dashboards = {
service: undefined,
};
provider = env('CONSUL_METRICS_PROVIDER');
proxy = env('CONSUL_METRICS_PROXY_ENABLED');
dashboards.service = env('CONSUL_SERVICE_DASHBOARD_URL');
if (provider) {
ui_config.metrics_provider = provider;
}
if (proxy) {
ui_config.metrics_proxy_enabled = proxy;
}
if (dashboards.service) {
ui_config.dashboard_url_templates = dashboards;
}
return ui_config;
case 'CONSUL_BASE_UI_URL':
return currentSrc.split('/').slice(0, -2).join('/');
case 'CONSUL_HTTP_PROTOCOL':
if (typeof resource === 'undefined') {
// resource needs to be retrieved lazily as entries aren't guaranteed
// to be available at script execution time (caching seems to affect this)
// waiting until we retrieve this value lazily at runtime means that
// the entries are always available as these values are only retrieved
// after initialization
// current is based on the assumption that whereever this script is it's
// likely to be the same as the xmlhttprequests
resource = getResourceFor(currentSrc);
}
return resource.nextHopProtocol || 'http/1.1';
case 'CONSUL_HTTP_MAX_CONNECTIONS':
protocol = env('CONSUL_HTTP_PROTOCOL');
// http/2, http2+QUIC/39 and SPDY don't have connection limits
switch (true) {
case protocol.indexOf('h2') === 0:
case protocol.indexOf('hq') === 0:
case protocol.indexOf('spdy') === 0:
// TODO: Change this to return -1 so we try to consistently
// return a value from env vars
return;
default:
// generally 6 are available
// reserve 1 for traffic that we can't manage
return 5;
}
}
};
const ui = function (key) {
let $ = {};
switch (config.environment) {
case 'development':
case 'staging':
case 'coverage':
case 'test':
$ = dev().reduce(function (prev, [key, value]) {
switch (key) {
case 'CONSUL_INTL_LOCALE':
prev['CONSUL_INTL_LOCALE'] = String(value).toLowerCase();
break;
case 'CONSUL_INTL_DEBUG':
prev['CONSUL_INTL_DEBUG'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_ACLS_ENABLE':
prev['CONSUL_ACLS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_AGENTLESS_ENABLE':
prev['CONSUL_AGENTLESS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_NSPACES_ENABLE':
prev['CONSUL_NSPACES_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_SSO_ENABLE':
prev['CONSUL_SSO_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_PARTITIONS_ENABLE':
prev['CONSUL_PARTITIONS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_METRICS_PROXY_ENABLE':
prev['CONSUL_METRICS_PROXY_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_PEERINGS_ENABLE':
prev['CONSUL_PEERINGS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_HCP_ENABLE':
prev['CONSUL_HCP_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_UI_CONFIG':
prev['CONSUL_UI_CONFIG'] = JSON.parse(value);
break;
case 'TokenSecretID':
prev['CONSUL_HTTP_TOKEN'] = value;
break;
default:
prev[key] = value;
}
return prev;
}, {});
break;
case 'production':
$ = dev().reduce(function (prev, [key, value]) {
switch (key) {
case 'TokenSecretID':
prev['CONSUL_HTTP_TOKEN'] = value;
break;
}
return prev;
}, {});
break;
}
if (typeof $[key] !== 'undefined') {
return $[key];
}
return config[key];
};
return function env(str) {
switch (str) {
// All user providable values should start with CONSUL_UI
// We allow the user to set these ones via localStorage
// user value is preferred.
case 'CONSUL_UI_DISABLE_REALTIME':
case 'CONSUL_UI_DISABLE_ANCHOR_SELECTION':
// these are booleans cast things out
return !!JSON.parse(String(user(str) || 0).toLowerCase()) || ui(str);
case 'CONSUL_UI_REALTIME_RUNNER':
// these are strings
return user(str) || ui(str);
case 'CONSUL_UI_CONFIG':
case 'CONSUL_DATACENTER_LOCAL':
case 'CONSUL_DATACENTER_PRIMARY':
case 'CONSUL_HCP_MANAGED_RUNTIME':
case 'CONSUL_API_PREFIX':
case 'CONSUL_HCP_URL':
case 'CONSUL_ACLS_ENABLED':
case 'CONSUL_NSPACES_ENABLED':
case 'CONSUL_PEERINGS_ENABLED':
case 'CONSUL_AGENTLESS_ENABLED':
case 'CONSUL_HCP_ENABLED':
case 'CONSUL_SSO_ENABLED':
case 'CONSUL_PARTITIONS_ENABLED':
case 'CONSUL_METRICS_PROVIDER':
case 'CONSUL_METRICS_PROXY_ENABLE':
case 'CONSUL_SERVICE_DASHBOARD_URL':
case 'CONSUL_BASE_UI_URL':
case 'CONSUL_HTTP_PROTOCOL':
case 'CONSUL_HTTP_MAX_CONNECTIONS': {
// We allow the operator to set these ones via various methods
// although UI developer config is preferred
const _ui = ui(str);
return typeof _ui !== 'undefined' ? _ui : operator(str, env);
}
default:
return ui(str);
}
};
}
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