Method Validate

processing/config.go:110–142

Validate checks if the configuration is valid

()

// Validate checks if the configuration is valid
func (c *Config) Validate() error {
	if c.WatermarkOpacity <= 0 || c.WatermarkOpacity > 1 {
		return IMGPROXY_WATERMARK_OPACITY.Errorf("must be between 0 and 1")
	}

	if c.Quality < 1 || c.Quality > 100 {
		return IMGPROXY_QUALITY.Errorf("must be between 1 and 100")
	}

	for imgtype, minQ := range c.FormatQuality {
		if minQ < 1 || minQ > 100 {
			return IMGPROXY_FORMAT_QUALITY.Errorf("format %s: must be between 1 and 100", imgtype.String())
		}
	}

	filtered := c.PreferredFormats[:0]

	for _, t := range c.PreferredFormats {
		if !vips.SupportsSave(t) {
			IMGPROXY_PREFERRED_FORMATS.Warn("can't be a preferred format as it's saving is not supported", "format", t)
		} else {
			filtered = append(filtered, t)
		}
	}

	if len(filtered) == 0 {
		return IMGPROXY_PREFERRED_FORMATS.Errorf("no supported preferred formats specified")
	}

	c.PreferredFormats = filtered

	return nil
}