Add feature to have chrome ignore certificate errors when printing using an URL.

internal/pkg/conf/conf.go

@@ -40,6 +40,8 @@ const (
 	// DefaultGoogleChromeRpccBufferSizeEnvVar contains the name
 	// of the environment variable "DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE".
 	DefaultGoogleChromeRpccBufferSizeEnvVar string = "DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE"
+	// Allow self signed certificates when using a remote url
+	URLIgnoreCertificateErrorsEnvVar string = "URL_IGNORE_CERTIFICATE_ERRORS"
 )
 
 // Config contains the application
@@ -53,6 +55,7 @@ type Config struct {
 	defaultListenPort                 int64
 	disableGoogleChrome               bool
 	disableUnoconv                    bool
+	urlIgnoreCertificateErrors        bool
 	logLevel                          xlog.Level
 	rootPath                          string
 	maximumGoogleChromeRpccBufferSize int64
@@ -75,6 +78,7 @@ func DefaultConfig() Config {
 		rootPath:                          "/",
 		maximumGoogleChromeRpccBufferSize: 104857600, // ~100 MB
 		defaultGoogleChromeRpccBufferSize: 1048576,   // 1 MB
+		urlIgnoreCertificateErrors:        false,
 	}
 }
 
@@ -188,6 +192,14 @@ func FromEnv() (Config, error) {
 		if err != nil {
 			return c, err
 		}
+		urlIgnoreCertificateErrors, err := xassert.BoolFromEnv(
+			URLIgnoreCertificateErrorsEnvVar,
+			c.urlIgnoreCertificateErrors,
+		)
+		c.urlIgnoreCertificateErrors = urlIgnoreCertificateErrors
+		if err != nil {
+			return c, err
+		}
 		return c, nil
 	}
 	result, err := resolver()
@@ -274,3 +286,10 @@ func (c Config) MaximumGoogleChromeRpccBufferSize() int64 {
 func (c Config) DefaultGoogleChromeRpccBufferSize() int64 {
 	return c.defaultGoogleChromeRpccBufferSize
 }
+
+// IgnoreCertificateErrors returns true if
+// Google Chrome should ignore certificate errors
+// in case of self signed certificates for example.
+func (c Config) IgnoreCertificateErrors() bool {
+	return c.urlIgnoreCertificateErrors
+}