cloudflared-mirror/vendor/github.com/certifi/gocertifi
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README.md TUN-2943: Copy certutil from edge into cloudflared 2020-05-04 17:37:29 -05:00
certifi.go TUN-2943: Copy certutil from edge into cloudflared 2020-05-04 17:37:29 -05:00

README.md

GoCertifi: SSL Certificates for Golang

This Go package contains a CA bundle that you can reference in your Go code. This is useful for systems that do not have CA bundles that Golang can find itself, or where a uniform set of CAs is valuable.

This is the same CA bundle that ships with the Python Requests library, and is a Golang specific port of certifi. The CA bundle is derived from Mozilla's canonical set.

Usage

You can use the gocertifi package as follows:

import "github.com/certifi/gocertifi"

certPool, err := gocertifi.CACerts()

You can use the returned *x509.CertPool as part of an HTTP transport, for example:

import (
  "net/http"
  "crypto/tls"
)

// Setup an HTTP client with a custom transport
transport := &http.Transport{
  Proxy: ProxyFromEnvironment,
  DialContext: (&net.Dialer{
    Timeout:   30 * time.Second,
    KeepAlive: 30 * time.Second,
    DualStack: true,
  }).DialContext,
  ForceAttemptHTTP2:     true,
  MaxIdleConns:          100,
  IdleConnTimeout:       90 * time.Second,
  TLSHandshakeTimeout:   10 * time.Second,
  ExpectContinueTimeout: 1 * time.Second,
}
// or, starting with go1.13 simply use:
// transport := http.DefaultTransport.(*http.Transport).Clone()

transport.TLSClientConfig = &tls.Config{RootCAs: certPool}
client := &http.Client{Transport: transport}

// Make an HTTP request using our custom transport
resp, err := client.Get("https://example.com")

Detailed Documentation

Import as follows:

import "github.com/certifi/gocertifi"

Errors

var ErrParseFailed = errors.New("gocertifi: error when parsing certificates")

Functions

func CACerts() (*x509.CertPool, error)

CACerts builds an X.509 certificate pool containing the Mozilla CA Certificate bundle. Returns nil on error along with an appropriate error code.