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generate_httpd_config.go
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generate_httpd_config.go
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package httpd
import (
"fmt"
"os"
"path/filepath"
"text/template"
"github.com/paketo-buildpacks/packit/v2/scribe"
"github.com/paketo-buildpacks/packit/v2/servicebindings"
)
//go:generate faux --interface BindingResolver --output fakes/binding_resolver.go
type BindingResolver interface {
Resolve(typ, provider, platformDir string) ([]servicebindings.Binding, error)
}
type GenerateHTTPDConfig struct {
bindingResolver BindingResolver
logger scribe.Emitter
}
func NewGenerateHTTPDConfig(bindingResolver BindingResolver, logger scribe.Emitter) GenerateHTTPDConfig {
return GenerateHTTPDConfig{
bindingResolver: bindingResolver,
logger: logger,
}
}
func (g GenerateHTTPDConfig) Generate(workingDir, platformPath string, buildEnvironment BuildEnvironment) error {
g.logger.Process("Generating httpd.conf")
t, err := template.New("httpd.conf").Parse(httpdConf)
if err != nil {
return err
}
confFile, err := os.Create(filepath.Join(workingDir, "httpd.conf"))
if err != nil {
return err
}
if buildEnvironment.WebServerRoot == "" {
buildEnvironment.WebServerRoot = "${APP_ROOT}/public"
} else {
webServerRoot := buildEnvironment.WebServerRoot
if !filepath.IsAbs(webServerRoot) {
webServerRoot = fmt.Sprintf("${APP_ROOT}/%s", webServerRoot)
}
g.logger.Subprocess("Adds configuration to set web server root to '%s'", webServerRoot)
buildEnvironment.WebServerRoot = webServerRoot
}
if buildEnvironment.WebServerPushStateEnabled {
g.logger.Subprocess("Adds configuration that enables push state")
}
if buildEnvironment.WebServerForceHTTPS {
g.logger.Subprocess("Adds configuration that forces https redirect")
}
bindings, err := g.bindingResolver.Resolve("htpasswd", "", platformPath)
if err != nil {
return err
}
if len(bindings) > 1 {
return fmt.Errorf("failed: binding resolver found more than one binding of type 'htpasswd'")
}
if len(bindings) == 1 {
if _, ok := bindings[0].Entries[".htpasswd"]; !ok {
return fmt.Errorf("failed: binding of type 'htpasswd' does not contain required entry '.htpasswd'")
}
g.logger.Subprocess("Adds configuration that configured basic authentication from service binding")
buildEnvironment.BasicAuthFile = filepath.Join(bindings[0].Path, ".htpasswd")
}
g.logger.Break()
err = t.Execute(confFile, buildEnvironment)
if err != nil {
return err
}
err = confFile.Close()
if err != nil {
return err
}
return nil
}