public Object handlePostLike(Request request, Response response) {
String permalink = request.queryParams("permalink");
String commentOrdinalStr = request.queryParams("comment_ordinal");
// look up the post in question
int ordinal = Integer.parseInt(commentOrdinalStr);
// TODO: check return or have checkSession throw
String username = sessionDAO.findUserNameBySessionId(request.cookie("session"));
Document post = blogPostDAO.findByPermalink(permalink);
// if post not found, redirect to post not found error
if (post == null) {
response.redirect("/post_not_found");
} else {
blogPostDAO.likePost(permalink, ordinal);
response.redirect("/post/" + permalink);
}
SimpleHash root = new SimpleHash();
return templateEngine.render(new ModelAndView(root, "entry_template.ftl"));
}
/**
* @param request The request object providing information about the HTTP request
* @param response The response object providing functionality for modifying the response
* @return The content to be set in the response
* @throws Exception implementation can choose to throw exception
*/
public String handlePostNewPost(Request request, Response response) throws Exception {
String title = StringEscapeUtils.escapeHtml4(request.queryParams("subject"));
String post = StringEscapeUtils.escapeHtml4(request.queryParams("body"));
String tags = StringEscapeUtils.escapeHtml4(request.queryParams("tags"));
String username = sessionDAO.findUserNameBySessionId(request.cookie("session"));
if (username == null) {
response.redirect("/login"); // only logged in users can post to blog
return templateEngine.render(new ModelAndView(null, "redirect.ftl"));
} else if (title.equals("") || post.equals("")) {
SimpleHash root = new SimpleHash();
// redisplay page with errors
root.put("errors", "post must contain a title and blog entry.");
root.put("subject", title);
root.put("username", username);
root.put("tags", tags);
root.put("body", post);
return templateEngine.render(new ModelAndView(root, "newpost_template.ftl"));
} else {
// extract tags
List<String> tagsArray = extractTags(tags);
// substitute some <p> for the paragraph breaks
post = post.replaceAll("\\r?\\n", "<p>");
String permalink = blogPostDAO.addPost(title, post, tagsArray, username);
// now redirect to the blog permalink
response.redirect("/post/" + permalink);
return templateEngine.render(new ModelAndView(null, "redirect.ftl"));
}
}
/**
* This is where we would normally load up the blog data but this week, we just display a
* placeholder.
*
* @param request The request object providing information about the HTTP request
* @param response The response object providing functionality for modifying the response
* @return The content to be set in the response
* @throws Exception implementation can choose to throw exception
*/
public String handleGetRoot(Request request, Response response) throws Exception {
SimpleHash root = new SimpleHash();
String username = sessionDAO.findUserNameBySessionId(request.cookie("session"));
List<Document> posts = blogPostDAO.findByDateDescending(10);
root.put("myposts", posts);
if (username != null) {
root.put("username", username);
}
return templateEngine.render(new ModelAndView(root, "blog_template.ftl"));
}
/**
* @param request The request object providing information about the HTTP request
* @param response The response object providing functionality for modifying the response
* @return The content to be set in the response
* @throws Exception implementation can choose to throw exception
*/
public String handleGetNewPost(Request request, Response response) throws Exception {
// get cookie
String username = sessionDAO.findUserNameBySessionId(request.cookie("session"));
if (username == null) {
// looks like a bad request. user is not logged in
response.redirect("/login");
return templateEngine.render(new ModelAndView(null, "redirect.ftl"));
} else {
SimpleHash root = new SimpleHash();
root.put("username", username);
return templateEngine.render(new ModelAndView(root, "newpost_template.ftl"));
}
}
/**
* @param request The request object providing information about the HTTP request
* @param response The response object providing functionality for modifying the response
* @return The content to be set in the response
* @throws Exception implementation can choose to throw exception
*/
public String handleGetByTag(Request request, Response response) throws Exception {
String username = sessionDAO.findUserNameBySessionId(request.cookie("session"));
SimpleHash root = new SimpleHash();
String tag = StringEscapeUtils.escapeHtml4(request.params(":thetag"));
List<Document> posts = blogPostDAO.findByTagDateDescending(tag);
root.put("myposts", posts);
if (username != null) {
root.put("username", username);
}
return templateEngine.render(new ModelAndView(root, "blog_template.ftl"));
}