Documentation
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Index ¶
- Constants
- Variables
- 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 HeartbeatClose(ctx context.Context, exit func(), conn *websocket.Conn)
- func HostnamesMatch(a, b string) bool
- func InternalServerError(rw http.ResponseWriter, err error)
- func Is404Error(err error) bool
- func IsWebsocketUpgrade(r *http.Request) bool
- func NameValid(str string) error
- func ParseCustom[T any](parser *QueryParamParser, vals url.Values, def T, queryParam string, ...) T
- func ParseCustomList[T any](parser *QueryParamParser, vals url.Values, def []T, queryParam string, ...) []T
- func ParseEnum[T ValidEnum](term string) (T, error)
- 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) (sendEvent func(ctx context.Context, sse codersdk.ServerSentEvent) error, ...)
- func StripCoderCookies(header string) string
- func TemplateDisplayNameValid(str string) error
- func TemplateVersionNameValid(str string) error
- func UsernameFrom(str string) string
- func WebsocketCloseSprintf(format string, vars ...any) string
- func Write(ctx context.Context, rw http.ResponseWriter, status int, response interface{})
- func WriteIndent(ctx context.Context, rw http.ResponseWriter, status int, response interface{})
- type ApplicationURL
- type Duration
- type QueryParamParser
- func (p *QueryParamParser) Boolean(vals url.Values, def bool, queryParam string) bool
- func (p *QueryParamParser) ErrorExcessParams(values url.Values)
- func (p *QueryParamParser) Int(vals url.Values, def int, queryParam string) int
- func (p *QueryParamParser) Required(queryParam string) *QueryParamParser
- func (p *QueryParamParser) String(vals url.Values, def string, queryParam string) string
- func (p *QueryParamParser) Strings(vals url.Values, def []string, queryParam string) []string
- func (p *QueryParamParser) Time(vals url.Values, def time.Time, queryParam, layout string) time.Time
- func (p *QueryParamParser) Time3339Nano(vals url.Values, def time.Time, queryParam string) time.Time
- func (p *QueryParamParser) UInt(vals url.Values, def uint64, queryParam string) uint64
- 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
- type ValidEnum
Constants ¶
const ( // XForwardedHostHeader is a header used by proxies to indicate the // original host of the request. XForwardedHostHeader = "X-Forwarded-Host" )
Variables ¶
var ResourceNotFoundResponse = codersdk.Response{Message: "Resource not found or you do not have access to this resource"}
var (
UsernameValidRegex = regexp.MustCompile("^[a-zA-Z0-9]+(?:-[a-zA-Z0-9]+)*$")
)
var Validate *validator.Validate
Functions ¶
func CompileHostnamePattern ¶
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 ¶
ExecuteHostnamePattern executes a pattern generated by CompileHostnamePattern and returns the wildcard match. If the pattern does not match the hostname, returns false.
func Forbidden ¶
func Forbidden(rw http.ResponseWriter)
func Heartbeat ¶
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 HeartbeatClose ¶
Heartbeat loops to ping a WebSocket to keep it alive. It kills the connection on ping failure.
func HostnamesMatch ¶
HostnamesMatch returns true if the hostnames are equal, disregarding capitalization, extra leading or trailing periods, and ports.
func InternalServerError ¶
func InternalServerError(rw http.ResponseWriter, err error)
func Is404Error ¶
Is404Error returns true if the given error should return a 404 status code. Both actual 404s and unauthorized errors should return 404s to not leak information about the existence of resources.
func IsWebsocketUpgrade ¶
func NameValid ¶
NameValid returns whether the input string is a valid name. It is a generic validator for any name (user, workspace, template, etc.).
func ParseCustom ¶
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 ParseCustomList ¶
func ParseCustomList[T any](parser *QueryParamParser, vals url.Values, def []T, queryParam string, parseFunc func(v string) (T, error)) []T
ParseCustomList is a function that handles csv query params.
func ParseEnum ¶
ParseEnum is a function that can be passed into ParseCustom that handles enum validation.
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 ¶
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 ¶
func ResourceNotFound(rw http.ResponseWriter)
ResourceNotFound is intentionally vague. All 404 responses should be identical to prevent leaking existence of resources.
func RouteNotFound ¶
func RouteNotFound(rw http.ResponseWriter)
func ServerSentEventSender ¶
func ServerSentEventSender(rw http.ResponseWriter, r *http.Request) (sendEvent func(ctx context.Context, sse codersdk.ServerSentEvent) error, closed chan struct{}, err error)
func StripCoderCookies ¶
StripCoderCookies removes the session token from the cookie header provided.
func TemplateDisplayNameValid ¶
TemplateDisplayNameValid returns whether the input string is a valid template display name.
func TemplateVersionNameValid ¶
TemplateVersionNameValid returns whether the input string is a valid template version name.
func UsernameFrom ¶
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 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.
func WriteIndent ¶
func WriteIndent(ctx context.Context, rw http.ResponseWriter, status int, response interface{})
Types ¶
type ApplicationURL ¶
type ApplicationURL struct {
Prefix string
AppSlugOrPort string
AgentName string
WorkspaceName string
Username string
}
ApplicationURL is a parsed application URL hostname.
func ParseSubdomainAppURL ¶
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.
Subdomains should be in the form:
({PREFIX}---)?{PORT/APP_SLUG}--{AGENT_NAME}--{WORKSPACE_NAME}--{USERNAME}
e.g.
https://8080--main--dev--dean.hi.c8s.io
https://app--main--dev--dean.hi.c8s.io
https://prefix---8080--main--dev--dean.hi.c8s.io
https://prefix---app--main--dev--dean.hi.c8s.io
The optional prefix is permitted to allow customers to put additional URL at the beginning of their application URL (i.e. if they want to simulate different subdomains on the same app/port).
Prefix requires three hyphens at the end to separate it from the rest of the URL so we can add/remove segments in the future from the parsing logic.
TODO(dean): make the agent name optional when using the app slug. This will reduce the character count for app URLs.
func (ApplicationURL) String ¶
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 Duration ¶
Duration wraps time.Duration and provides better JSON marshaling and unmarshalling. The default time.Duration marshals as an integer and only accepts integers when unmarshalling, which is not very user friendly as users cannot write durations like "1h30m".
This type marshals as a string like "1h30m", and unmarshals from either a string or an integer.
func (Duration) MarshalJSON ¶
MarshalJSON implements json.Marshaler.
func (*Duration) UnmarshalJSON ¶
UnmarshalJSON implements json.Unmarshaler.
type QueryParamParser ¶
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
// Parsed is a map of all query params that were parsed. This is useful
// for checking if extra query params were passed in.
Parsed map[string]bool
// RequiredParams is a map of all query params that are required. This is useful
// for forcing a value to be provided.
RequiredParams map[string]bool
}
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 ¶
func NewQueryParamParser() *QueryParamParser
func (*QueryParamParser) ErrorExcessParams ¶
func (p *QueryParamParser) ErrorExcessParams(values url.Values)
ErrorExcessParams checks if any query params were passed in that were not parsed. If so, it adds an error to the parser as these values are not valid query parameters.
func (*QueryParamParser) Required ¶
func (p *QueryParamParser) Required(queryParam string) *QueryParamParser
func (*QueryParamParser) Time3339Nano ¶
func (p *QueryParamParser) Time3339Nano(vals url.Values, def time.Time, queryParam string) time.Time
Time uses the default time format of RFC3339Nano and always returns a UTC time.
Source Files
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Directories
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| Path | Synopsis |
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Package httpapiconstraints contain types that can be used and implemented across the application to return specific HTTP status codes without pulling in large dependency trees.
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Package httpapiconstraints contain types that can be used and implemented across the application to return specific HTTP status codes without pulling in large dependency trees. |