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middleware.js
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middleware.js
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const ExpressError = require('./utils/ExpressError')
const Blog = require('./models/blog')
const Comment = require('./models/comment')
const { blogSchema, commentSchema } = require('./schemas.js')
module.exports.isLoggedIn = (req, res, next) => {
if (!req.isAuthenticated()) {
req.session.returnTo = req.originalUrl
req.flash('error', 'You must be Signed in first!');
return res.redirect('/login');
}
next();
}
module.exports.isAuthor = async (req, res, next) => {
const { id } = req.params;
const blog = await Blog.findById(id);
if (!blog.author.equals(req.user._id)) {
req.flash('error', 'You do not have permission to do that!');
return res.redirect(`/blogs/${id}`);
}
next();
}
module.exports.isCommentAuthor = async (req, res, next) => {
const { id, commentId } = req.params;
const comment = await Comment.findById(commentId);
if (!comment.author.equals(req.user._id)) {
req.flash('error', 'You do not have permission to do that!');
return res.redirect(`/blogs/${id}`);
}
next();
}
module.exports.validateBlog = (req, res, next) => {
const { error } = blogSchema.validate(req.body)
if(error) {
const msg = error.details.map(el => el.message).join(',')
throw new ExpressError(msg, 400)
} else {
next()
}
}
module.exports.validateComment = (req, res, next) => {
const { error } = commentSchema.validate(req.body);
if (error) {
const msg = error.details.map(el => el.message).join(',')
throw new ExpressError(msg, 400)
} else {
next();
}
}