camlistore.org: camlistore.org/pkg/httputil Index | Files

package httputil

import "camlistore.org/pkg/httputil"

Package httputil contains a bunch of HTTP utility code, some generic, and some Camlistore-specific.

Index

Package Files

auth.go certs.go faketransport.go httputil.go transport.go

Constants

const (
    PathBaseHeader   = "X-Prefixhandler-Pathbase"
    PathSuffixHeader = "X-Prefixhandler-Pathsuffix"
)

func BadRequestError Uses

func BadRequestError(rw http.ResponseWriter, errorMessage string, args ...interface{})

func BaseURL Uses

func BaseURL(urlStr string, req *http.Request) (string, error)

BaseURL returns the base URL (scheme + host and optional port + blobserver prefix) that should be used for requests (and responses) subsequent to req. The returned URL does not end in a trailing slash. The scheme and host:port are taken from urlStr if present, or derived from req otherwise. The prefix part comes from urlStr.

func BasicAuth Uses

func BasicAuth(req *http.Request) (username, password string, err error)

BasicAuth parses the Authorization header on req If absent or invalid, an error is returned.

func CertFingerprint Uses

func CertFingerprint(certPEM []byte) (string, error)

CertFingerprint returns the SHA-256 prefix of the x509 certificate encoded in certPEM.

func CertFingerprints Uses

func CertFingerprints(certPEM []byte) (map[string]string, error)

CertFingerprints returns a map of hash prefixes of the x509 certificate encoded in certPEM. The hashes are keyed by name ("SHA-1", and "SHA-256").

func DecodeJSON Uses

func DecodeJSON(res *http.Response, dest interface{}) error

DecodeJSON decodes the JSON in res.Body into dest and then closes res.Body. It defensively caps the JSON at 8 MB for now.

func ErrorRouting Uses

func ErrorRouting(rw http.ResponseWriter, req *http.Request)

func FileResponder Uses

func FileResponder(filename string) func() *http.Response

FileResponder returns an HTTP response generator that returns the contents of the named file.

func ForbiddenError Uses

func ForbiddenError(rw http.ResponseWriter, errorMessage string, args ...interface{})

func GenSelfTLS Uses

func GenSelfTLS(hostname string) (certPEM, keyPEM []byte, err error)

GenSelfTLS generates a self-signed certificate and key for hostname.

func GenSelfTLSFiles Uses

func GenSelfTLSFiles(hostname, certPath, keyPath string) (fingerprint string, err error)

GenSelfTLSFiles generates a self-signed certificate and key for hostname, and writes them to the given paths. If it succeeds it also returns the SHA256 prefix of the new cert.

func InstallCerts Uses

func InstallCerts()

InstallCerts adds Mozilla's Certificate Authority root set to http.DefaultTransport's configuration if the current operating system's root CAs are not available. (for instance, if running inside a Docker container without a filesystem)

func IsGet Uses

func IsGet(r *http.Request) bool

IsGet reports whether r.Method is a GET or HEAD request.

func IsLocalhost Uses

func IsLocalhost(req *http.Request) bool

IsLocalhost reports whether the requesting connection is from this machine and has the same owner as this process.

func IsWebsocketUpgrade Uses

func IsWebsocketUpgrade(req *http.Request) bool

func MustGet Uses

func MustGet(req *http.Request, param string) string

MustGet returns a non-empty GET (or HEAD) parameter param and panics with a special error as caught by a deferred httputil.Recover.

func MustGetBlobRef Uses

func MustGetBlobRef(req *http.Request, param string) blob.Ref

MustGetBlobRef returns a non-nil BlobRef from req, as given by param. If it doesn't, it panics with a value understood by Recover or RecoverJSON.

func NewFakeTransport Uses

func NewFakeTransport(urls map[string]func() *http.Response) http.RoundTripper

NewFakeTransport takes a map of URL to function generating a response and returns an http.RoundTripper that does HTTP requests out of that.

func NewRegexpFakeTransport Uses

func NewRegexpFakeTransport(allMatchers []*Matcher) (http.RoundTripper, error)

NewRegexpFakeTransport takes a slice of Matchers and returns an http.RoundTripper that will apply the function associated with the first UrlRegex that matches.

func OptionalInt Uses

func OptionalInt(req *http.Request, param string) int

OptionalInt returns the integer in req given by param, or 0 if not present. If the form value is not an integer, it panics with a a value understood by Recover or RecoverJSON.

func PathBase Uses

func PathBase(req *http.Request) string

PathBase returns a Request's base path, if it went via a PrefixHandler.

func PathSuffix Uses

func PathSuffix(req *http.Request) string

PathSuffix returns a Request's suffix path, if it went via a PrefixHandler.

func Recover Uses

func Recover(rw http.ResponseWriter, req *http.Request)

Recover is meant to be used at the top of handlers with "defer" to catch errors from MustGet, etc:

func handler(rw http.ResponseWriter, req *http.Request) {
    defer httputil.Recover(rw, req)
    id := req.MustGet("id")
    ....

Recover will send the proper HTTP error type and message (e.g. a 400 Bad Request for MustGet)

func RecoverJSON Uses

func RecoverJSON(rw http.ResponseWriter, req *http.Request)

RecoverJSON is like Recover but returns with a JSON response.

func RequestEntityTooLargeError Uses

func RequestEntityTooLargeError(rw http.ResponseWriter)

func RequestTargetPort Uses

func RequestTargetPort(req *http.Request) int

RequestTargetPort returns the port targeted by the client in req. If not present, it returns 80, or 443 if TLS is used.

func ReturnJSON Uses

func ReturnJSON(rw http.ResponseWriter, data interface{})

func ReturnJSONCode Uses

func ReturnJSONCode(rw http.ResponseWriter, code int, data interface{})

func RootCAPool Uses

func RootCAPool() *x509.CertPool

RootCAPool returns the Mozilla Root Certificate Authority pool, as statically compiled into the binary.

func ServeError Uses

func ServeError(rw http.ResponseWriter, req *http.Request, err error)

func ServeJSONError Uses

func ServeJSONError(rw http.ResponseWriter, err interface{})

ServeJSONError sends a JSON error response to rw for the provided error value.

func StaticResponder Uses

func StaticResponder(res string) func() *http.Response

StaticResponder returns an HTTP response generator that parses res for an entire HTTP response, including headers and body.

func SystemCARootsAvailable Uses

func SystemCARootsAvailable() bool

SystemCARootsAvailable reports whether the operating system's root CA files are available.

type InvalidMethodError Uses

type InvalidMethodError struct{}

An InvalidMethodError is returned when an HTTP handler is invoked with an unsupported method.

func (InvalidMethodError) Error Uses

func (InvalidMethodError) Error() string

func (InvalidMethodError) HTTPCode Uses

func (InvalidMethodError) HTTPCode() int

type InvalidParameterError Uses

type InvalidParameterError string

An InvalidParameterError represents an invalid HTTP parameter. The underlying string is the invalid parameter name, not value.

func (InvalidParameterError) Error Uses

func (p InvalidParameterError) Error() string

func (InvalidParameterError) HTTPCode Uses

func (InvalidParameterError) HTTPCode() int

type Matcher Uses

type Matcher struct {
    URLRegex string                // will be compiled and matched against URLs
    Fn       func() *http.Response // function that will be run if URLRegex matches
}

Matcher describes a regular expression and the function that will be used if that regular expression is matched.

type MissingParameterError Uses

type MissingParameterError string

A MissingParameterError represents a missing HTTP parameter. The underlying string is the missing parameter name.

func (MissingParameterError) Error Uses

func (p MissingParameterError) Error() string

func (MissingParameterError) HTTPCode Uses

func (MissingParameterError) HTTPCode() int

type PrefixHandler Uses

type PrefixHandler struct {
    Prefix  string
    Handler http.Handler
}

PrefixHandler wraps another Handler and verifies that all requests' Path begin with Prefix. If they don't, a 500 error is returned. If they do, the headers PathBaseHeader and PathSuffixHeader are set on the request before proxying to Handler. PathBaseHeader is just the value of Prefix. PathSuffixHeader is the part of the path that follows Prefix.

func (*PrefixHandler) ServeHTTP Uses

func (p *PrefixHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request)

type ServerError Uses

type ServerError string

A ServerError is a generic 500 error.

func (ServerError) Error Uses

func (e ServerError) Error() string

func (ServerError) HTTPCode Uses

func (ServerError) HTTPCode() int

type StatsTransport Uses

type StatsTransport struct {

    // Transport optionally specifies the transport to use.
    // If nil, http.DefaultTransport is used.
    Transport http.RoundTripper

    // If VerboseLog is true, HTTP request summaries are logged.
    VerboseLog bool
    // contains filtered or unexported fields
}

StatsTransport wraps another RoundTripper (or uses the default one) and counts the number of HTTP requests performed.

func (*StatsTransport) ProtoVersions Uses

func (t *StatsTransport) ProtoVersions() (h1, h2 int)

ProtoVersions returns how many HTTP/1 and HTTP/2 responses were seen.

func (*StatsTransport) Requests Uses

func (t *StatsTransport) Requests() int

func (*StatsTransport) RoundTrip Uses

func (t *StatsTransport) RoundTrip(req *http.Request) (resp *http.Response, err error)

Package httputil imports 34 packages (graph) and is imported by 523 packages. Updated 2018-01-31. Refresh now. Tools for package owners.