111 lines
3.9 KiB
Go
111 lines
3.9 KiB
Go
package tunnel
|
|
|
|
import (
|
|
"fmt"
|
|
"net/url"
|
|
|
|
"github.com/pkg/errors"
|
|
"github.com/urfave/cli/v2"
|
|
|
|
"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
|
|
"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
|
|
"github.com/cloudflare/cloudflared/ingress"
|
|
)
|
|
|
|
func buildIngressSubcommand() *cli.Command {
|
|
return &cli.Command{
|
|
Name: "ingress",
|
|
Category: "Tunnel",
|
|
Usage: "Validate and test cloudflared tunnel's ingress configuration",
|
|
UsageText: "cloudflared tunnel [--config FILEPATH] ingress COMMAND [arguments...]",
|
|
Hidden: true,
|
|
Description: ` Cloudflared lets you route traffic from the internet to multiple different addresses on your
|
|
origin. Multiple-origin routing is configured by a set of rules. Each rule matches traffic
|
|
by its hostname or path, and routes it to an address. These rules are configured under the
|
|
'ingress' key of your config.yaml, for example:
|
|
|
|
ingress:
|
|
- hostname: www.example.com
|
|
service: https://localhost:8000
|
|
- hostname: *.example.xyz
|
|
path: /[a-zA-Z]+.html
|
|
service: https://localhost:8001
|
|
- hostname: *
|
|
service: https://localhost:8002
|
|
|
|
To ensure cloudflared can route all incoming requests, the last rule must be a catch-all
|
|
rule that matches all traffic. You can validate these rules with the 'ingress validate'
|
|
command, and test which rule matches a particular URL with 'ingress rule <URL>'.
|
|
|
|
Multiple-origin routing is incompatible with the --url flag.`,
|
|
Subcommands: []*cli.Command{buildValidateIngressCommand(), buildTestURLCommand()},
|
|
}
|
|
}
|
|
|
|
func buildValidateIngressCommand() *cli.Command {
|
|
return &cli.Command{
|
|
Name: "validate",
|
|
Action: cliutil.ErrorHandler(validateIngressCommand),
|
|
Usage: "Validate the ingress configuration ",
|
|
UsageText: "cloudflared tunnel [--config FILEPATH] ingress validate",
|
|
Description: "Validates the configuration file, ensuring your ingress rules are OK.",
|
|
}
|
|
}
|
|
|
|
func buildTestURLCommand() *cli.Command {
|
|
return &cli.Command{
|
|
Name: "rule",
|
|
Action: cliutil.ErrorHandler(testURLCommand),
|
|
Usage: "Check which ingress rule matches a given request URL",
|
|
UsageText: "cloudflared tunnel [--config FILEPATH] ingress rule URL",
|
|
ArgsUsage: "URL",
|
|
Description: "Check which ingress rule matches a given request URL. " +
|
|
"Ingress rules match a request's hostname and path. Hostname is " +
|
|
"optional and is either a full hostname like `www.example.com` or a " +
|
|
"hostname with a `*` for its subdomains, e.g. `*.example.com`. Path " +
|
|
"is optional and matches a regular expression, like `/[a-zA-Z0-9_]+.html`",
|
|
}
|
|
}
|
|
|
|
// validateIngressCommand check the syntax of the ingress rules in the cloudflared config file
|
|
func validateIngressCommand(c *cli.Context) error {
|
|
conf := config.GetConfiguration()
|
|
fmt.Println("Validating rules from", conf.Source())
|
|
if _, err := ingress.ParseIngress(conf); err != nil {
|
|
return errors.Wrap(err, "Validation failed")
|
|
}
|
|
if c.IsSet("url") {
|
|
return ingress.ErrURLIncompatibleWithIngress
|
|
}
|
|
fmt.Println("OK")
|
|
return nil
|
|
}
|
|
|
|
// testURLCommand checks which ingress rule matches the given URL.
|
|
func testURLCommand(c *cli.Context) error {
|
|
requestArg := c.Args().First()
|
|
if requestArg == "" {
|
|
return errors.New("cloudflared tunnel rule expects a single argument, the URL to test")
|
|
}
|
|
|
|
requestURL, err := url.Parse(requestArg)
|
|
if err != nil {
|
|
return fmt.Errorf("%s is not a valid URL", requestArg)
|
|
}
|
|
if requestURL.Hostname() == "" && requestURL.Scheme == "" {
|
|
return fmt.Errorf("%s doesn't have a hostname, consider adding a scheme", requestArg)
|
|
}
|
|
|
|
conf := config.GetConfiguration()
|
|
fmt.Println("Using rules from", conf.Source())
|
|
ing, err := ingress.ParseIngress(conf)
|
|
if err != nil {
|
|
return errors.Wrap(err, "Validation failed")
|
|
}
|
|
|
|
i := ing.FindMatchingRule(requestURL.Hostname(), requestURL.Path)
|
|
fmt.Printf("Matched rule #%d\n", i+1)
|
|
fmt.Println(ing.Rules[i].MultiLineString())
|
|
return nil
|
|
}
|