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Documentation
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Index ¶
- Constants
- Variables
- func AppNameOrPort(val string) (string, uint16)
- func CompileHostnamePattern(pattern string) (*regexp.Regexp, error)
- func ExecuteHostnamePattern(pattern *regexp.Regexp, hostname string) (string, bool)
- func Forbidden(rw http.ResponseWriter)
- func Heartbeat(ctx context.Context, conn *websocket.Conn)
- func HostnamesMatch(a, b string) bool
- func InternalServerError(rw http.ResponseWriter, err error)
- func IsWebsocketUpgrade(r *http.Request) bool
- func ParseCustom[T any](parser *QueryParamParser, vals url.Values, def T, queryParam string, ...) T
- func Read(ctx context.Context, rw http.ResponseWriter, r *http.Request, ...) bool
- func RequestHost(r *http.Request) string
- func ResourceNotFound(rw http.ResponseWriter)
- func RouteNotFound(rw http.ResponseWriter)
- func ServerSentEventSender(rw http.ResponseWriter, r *http.Request) (func(ctx context.Context, sse codersdk.ServerSentEvent) error, error)
- func StripCoderCookies(header string) string
- func UsernameFrom(str string) string
- func UsernameValid(str string) bool
- func WebsocketCloseSprintf(format string, vars ...any) string
- func Write(ctx context.Context, rw http.ResponseWriter, status int, response interface{})
- type ApplicationURL
- type QueryParamParser
- func (p *QueryParamParser) Int(vals url.Values, def int, queryParam string) int
- func (*QueryParamParser) String(vals url.Values, def string, queryParam string) string
- func (*QueryParamParser) Strings(vals url.Values, def []string, queryParam string) []string
- func (p *QueryParamParser) UUID(vals url.Values, def uuid.UUID, queryParam string) uuid.UUID
- func (p *QueryParamParser) UUIDorMe(vals url.Values, def uuid.UUID, me uuid.UUID, queryParam string) uuid.UUID
- func (p *QueryParamParser) UUIDs(vals url.Values, def []uuid.UUID, queryParam string) []uuid.UUID
Constants ¶
const ( // XForwardedHostHeader is a header used by proxies to indicate the // original host of the request. XForwardedHostHeader = "X-Forwarded-Host" )
Variables ¶
var (
UsernameValidRegex = regexp.MustCompile("^[a-zA-Z0-9]+(?:-[a-zA-Z0-9]+)*$")
)
Functions ¶
func AppNameOrPort ¶ added in v0.8.15
AppNameOrPort takes a string and returns either the input string or a port number.
func CompileHostnamePattern ¶ added in v0.10.0
CompileHostnamePattern compiles a hostname pattern into a regular expression. A hostname pattern is a string that may contain a single wildcard character at the beginning. The wildcard character matches any number of hostname-safe characters excluding periods. The pattern is case-insensitive.
The supplied pattern:
- must not start or end with a period
- must contain exactly one asterisk at the beginning
- must not contain any other wildcard characters
- must not contain any other characters that are not hostname-safe (including whitespace)
- must contain at least two hostname labels/segments (i.e. "foo" or "*" are not valid patterns, but "foo.bar" and "*.bar" are).
The returned regular expression will match an entire hostname with optional trailing periods and whitespace. The first submatch will be the wildcard match.
func ExecuteHostnamePattern ¶ added in v0.10.0
ExecuteHostnamePattern executes a pattern generated by CompileHostnamePattern and returns the wildcard match. If the pattern does not match the hostname, returns false.
func Forbidden ¶ added in v0.5.10
func Forbidden(rw http.ResponseWriter)
func Heartbeat ¶ added in v0.9.3
Heartbeat loops to ping a WebSocket to keep it alive. Default idle connection timeouts are typically 60 seconds. See: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/application-load-balancers.html#connection-idle-timeout
func HostnamesMatch ¶ added in v0.9.0
HostnamesMatch returns true if the hostnames are equal, disregarding capitalization, extra leading or trailing periods, and ports.
func InternalServerError ¶ added in v0.8.10
func InternalServerError(rw http.ResponseWriter, err error)
func IsWebsocketUpgrade ¶ added in v0.8.10
func ParseCustom ¶ added in v0.7.5
func ParseCustom[T any](parser *QueryParamParser, vals url.Values, def T, queryParam string, parseFunc func(v string) (T, error)) T
ParseCustom has to be a function, not a method on QueryParamParser because generics cannot be used on struct methods.
func Read ¶
Read decodes JSON from the HTTP request into the value provided. It uses go-validator to validate the incoming request body. ctx is used for tracing and can be nil. Although tracing this function isn't likely too helpful, it was done to be consistent with Write.
func RequestHost ¶ added in v0.8.10
RequestHost returns the name of the host from the request. It prioritizes 'X-Forwarded-Host' over r.Host since most requests are being proxied.
func ResourceNotFound ¶ added in v0.7.0
func ResourceNotFound(rw http.ResponseWriter)
ResourceNotFound is intentionally vague. All 404 responses should be identical to prevent leaking existence of resources.
func RouteNotFound ¶ added in v0.9.0
func RouteNotFound(rw http.ResponseWriter)
func ServerSentEventSender ¶ added in v0.9.0
func ServerSentEventSender(rw http.ResponseWriter, r *http.Request) (func(ctx context.Context, sse codersdk.ServerSentEvent) error, error)
func StripCoderCookies ¶ added in v0.8.6
StripCoderCookies removes the session token from the cookie header provided.
func UsernameFrom ¶ added in v0.8.2
UsernameFrom returns a best-effort username from the provided string.
It first attempts to validate the incoming string, which will be returned if it is valid. It then will attempt to extract the username from an email address. If no success happens during these steps, a random username will be returned.
func UsernameValid ¶ added in v0.8.2
UsernameValid returns whether the input string is a valid username.
func WebsocketCloseSprintf ¶
WebsocketCloseSprintf formats a websocket close message and ensures it is truncated to the maximum allowed length.
func Write ¶
func Write(ctx context.Context, rw http.ResponseWriter, status int, response interface{})
Write outputs a standardized format to an HTTP response body. ctx is used for tracing and can be nil for tracing to be disabled. Tracing this function is helpful because JSON marshaling can sometimes take a non-insignificant amount of time, and could help us catch outliers. Additionally, we can enrich span data a bit more since we have access to the actual interface{} we're marshaling, such as the number of elements in an array, which could help us spot routes that need to be paginated.
Types ¶
type ApplicationURL ¶ added in v0.8.15
type ApplicationURL struct {
// Only one of AppName or Port will be set.
AppName string
Port uint16
AgentName string
WorkspaceName string
Username string
}
ApplicationURL is a parsed application URL hostname.
func ParseSubdomainAppURL ¶ added in v0.8.15
func ParseSubdomainAppURL(subdomain string) (ApplicationURL, error)
ParseSubdomainAppURL parses an ApplicationURL from the given subdomain. If the subdomain is not a valid application URL hostname, returns a non-nil error. If the hostname is not a subdomain of the given base hostname, returns a non-nil error.
The base hostname should not include a scheme, leading asterisk or dot.
Subdomains should be in the form:
{PORT/APP_NAME}--{AGENT_NAME}--{WORKSPACE_NAME}--{USERNAME}
(eg. https://8080--main--dev--dean.hi.c8s.io)
func (ApplicationURL) String ¶ added in v0.8.15
func (a ApplicationURL) String() string
String returns the application URL hostname without scheme. You will likely want to append a period and the base hostname.
type QueryParamParser ¶ added in v0.7.0
type QueryParamParser struct {
// Errors is the set of errors to return via the API. If the length
// of this set is 0, there are no errors!.
Errors []codersdk.ValidationError
}
QueryParamParser is a helper for parsing all query params and gathering all errors in 1 sweep. This means all invalid fields are returned at once, rather than only returning the first error
func NewQueryParamParser ¶ added in v0.7.0
func NewQueryParamParser() *QueryParamParser
Source Files