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serve.go
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serve.go
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// Package serve implements the serve command for CFSSL's API.
package serve
import (
"errors"
"net"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/cloudflare/cfssl/api/bundle"
"github.com/cloudflare/cfssl/api/certinfo"
"github.com/cloudflare/cfssl/api/generator"
"github.com/cloudflare/cfssl/api/info"
"github.com/cloudflare/cfssl/api/initca"
apiocsp "github.com/cloudflare/cfssl/api/ocsp"
"github.com/cloudflare/cfssl/api/scan"
apisign "github.com/cloudflare/cfssl/api/sign"
"github.com/cloudflare/cfssl/bundler"
"github.com/cloudflare/cfssl/cli"
ocspsign "github.com/cloudflare/cfssl/cli/ocspsign"
"github.com/cloudflare/cfssl/cli/sign"
"github.com/cloudflare/cfssl/log"
"github.com/cloudflare/cfssl/ocsp"
"github.com/cloudflare/cfssl/signer"
"github.com/cloudflare/cfssl/ubiquity"
rice "github.com/GeertJohan/go.rice"
)
// Usage text of 'cfssl serve'
var serverUsageText = `cfssl serve -- set up a HTTP server handles CF SSL requests
Usage of serve:
cfssl serve [-address address] [-ca cert] [-ca-bundle bundle] \
[-ca-key key] [-int-bundle bundle] [-int-dir dir] [-port port] \
[-metadata file] [-remote remote_host] [-config config] \
[-responder cert] [-responder-key key]
Flags:
`
// Flags used by 'cfssl serve'
var serverFlags = []string{"address", "port", "ca", "ca-key", "ca-bundle", "int-bundle", "int-dir", "metadata", "remote", "config", "responder", "responder-key"}
var (
conf cli.Config
s signer.Signer
ocspSigner ocsp.Signer
staticDir = "static"
)
var errBadSigner = errors.New("signer not initialized")
var v1Endpoints = map[string]func() (http.Handler, error){
"sign": func() (http.Handler, error) {
if s == nil {
return nil, errBadSigner
}
return apisign.NewHandlerFromSigner(s)
},
"authsign": func() (http.Handler, error) {
if s == nil {
return nil, errBadSigner
}
return apisign.NewAuthHandlerFromSigner(s)
},
"info": func() (http.Handler, error) {
if s == nil {
return nil, errBadSigner
}
return info.NewHandler(s)
},
"newcert": func() (http.Handler, error) {
if s == nil {
return nil, errBadSigner
}
return generator.NewCertGeneratorHandlerFromSigner(generator.CSRValidate, s), nil
},
"bundle": func() (http.Handler, error) {
return bundle.NewHandler(conf.CABundleFile, conf.IntBundleFile)
},
"newkey": func() (http.Handler, error) {
return generator.NewHandler(generator.CSRValidate)
},
"init_ca": func() (http.Handler, error) {
return initca.NewHandler(), nil
},
"scan": func() (http.Handler, error) {
return scan.NewHandler(conf.CABundleFile)
},
"scaninfo": func() (http.Handler, error) {
return scan.NewInfoHandler(), nil
},
"certinfo": func() (http.Handler, error) {
return certinfo.NewHandler(), nil
},
"ocspsign": func() (http.Handler, error) {
if ocspSigner == nil {
return nil, errBadSigner
}
return apiocsp.NewHandler(ocspSigner), nil
},
}
var staticEndpoints = map[string]func() (http.Handler, error){
"/": func() (http.Handler, error) {
//the default rice order doesn't include working directory
order := []rice.LocateMethod{
rice.LocateEmbedded,
rice.LocateAppended,
rice.LocateFS,
rice.LocateWorkingDirectory,
}
c := &rice.Config{LocateOrder: order}
box, err := c.FindBox(staticDir)
if err != nil {
return nil, err
}
return http.FileServer(box.HTTPBox()), nil
},
}
// v1APIPath prepends the V1 API prefix to endpoints not
func v1APIPath(endpoint string) string {
prefix := "/api/v1/cfssl/"
if strings.HasPrefix(endpoint, "/") {
prefix = ""
}
return (&url.URL{Path: prefix + endpoint}).String()
}
// registerHandlers instantiates various handlers and associate them to corresponding endpoints.
func registerHandlers() {
for path, getHandler := range v1Endpoints {
path = v1APIPath(path)
log.Infof("Setting up '%s' endpoint", path)
if handler, err := getHandler(); err != nil {
log.Warningf("endpoint '%s' is disabled: %v", path, err)
} else {
http.Handle(path, handler)
}
}
for path, getHandler := range staticEndpoints {
log.Infof("Setting up '%s' endpoint", path)
if handler, err := getHandler(); err != nil {
log.Warningf("endpoint '%s' is disabled: %v", path, err)
} else {
http.Handle(path, handler)
}
}
log.Info("Handler set up complete.")
}
// serverMain is the command line entry point to the API server. It sets up a
// new HTTP server to handle sign, bundle, and validate requests.
func serverMain(args []string, c cli.Config) error {
conf = c
// serve doesn't support arguments.
if len(args) > 0 {
return errors.New("argument is provided but not defined; please refer to the usage by flag -h")
}
bundler.IntermediateStash = conf.IntDir
var err error
if err = ubiquity.LoadPlatforms(conf.Metadata); err != nil {
return err
}
log.Info("Initializing signer")
if s, err = sign.SignerFromConfig(c); err != nil {
log.Warningf("couldn't initialize signer: %v", err)
}
if ocspSigner, err = ocspsign.SignerFromConfig(c); err != nil {
log.Warningf("couldn't initialize ocsp signer: %v", err)
}
registerHandlers()
addr := net.JoinHostPort(conf.Address, strconv.Itoa(conf.Port))
log.Info("Now listening on ", addr)
return http.ListenAndServe(addr, nil)
}
// Command assembles the definition of Command 'serve'
var Command = &cli.Command{UsageText: serverUsageText, Flags: serverFlags, Main: serverMain}