configureInlineImagesForInternal

private String configureInlineImagesForInternal(String body) {
		if(body.equals("")) {
			return "<p></p>";
		}
		JerryParser jerry = Jerry.jerry();

		//Jerry uses Lagarto behind the scenes, so we get the LagartoDOMBuilder to configure it
	    LagartoDOMBuilder domBuilder = (LagartoDOMBuilder) jerry.getDOMBuilder();
	    //We want to parse HTML, not XML, et al.
    	domBuilder.enableHtmlMode();
    	//By default, Lagarto pretends to handle IE conditional comments, but we want it to ignore
    	//them and treat them as normal comments so the HTML roundtrips the parse
    	domBuilder.setConditionalCommentExpression(null);
    	domBuilder.setIgnoreComments(false);

    	//With Lagarto configured, resume the regularly scheduled Jerry Springer show
		Jerry htmlBody = jerry.parse(body);
		Jerry imgs = htmlBody.find("img");
		imgs.forEach(img -> {
			String source = img.attr("src");
			if(source.startsWith("data") && source.contains("base64")) {
				/* case of byte data */
				String name = "cid:" + UUID.randomUUID();
				byte[] contentBytes = DatatypeConverter.parseBase64Binary(source.split(",")[1]);
				byte[] checksum = DigestUtils.sha256(contentBytes);
				String attachmentBase64 = DatatypeConverter.printHexBinary(checksum);
				File file = fileService.findFileByMD5(attachmentBase64);
				if (file == null) {
					FileModel fileModel = new FileModel();
					fileModel.setData(contentBytes);
					fileModel.setName(name);
					try {
						file = fileService.createFile(fileModel);
					} catch (IOException e) {
						logger.error("Unable to create file from mail attachment.", e);
					}
				}
				String base = "https://";
				if(config.isNotProduction()) {
					// no ssl on dev
					base = "http://";
				}
				/* set <img> src to file URL */
				img.attr("src", base + config.getHostname() + "/files/" + file.getId() + "/" + name);
			}
		});
		return htmlBody.html();
	}