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middleware.js
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middleware.js
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const ExpressError = require('./utils/ExpressError');
const { campgroundSchema, reviewSchema } = require('./schema');
const Campground = require('./models/campground');
const Review = require('./models/review');
module.exports.isLoggedIn = (req, res, next) => {
if (!req.isAuthenticated()) {
req.flash('error', 'You must be signed in first');
return res.redirect('/login');
}
next();
};
// server-side campground object validation function/middleware
module.exports.validateCampground = (req, res, next) => {
const { error } = campgroundSchema.validate(req.body);
if (error) {
const msg = error.details.map(el => el.message).join(',');
throw new ExpressError(msg, 400);
} else {
next();
}
};
module.exports.isCampgroundAuthor = async (req, res, next) => {
const { id } = req.params;
const campground = await Campground.findById(id);
if (!campground) {
req.flash('error', `Can't find that campground!`);
return res.redirect(`/campgrounds`);
}
if (!campground.author.equals(req.user._id)) {
req.flash('error', 'You have to be the author of this campground to do that!');
return res.redirect(`/campgrounds/${id}`);
}
return next();
};
// server-side review object validation function/middleware
module.exports.validateReview = (req, res, next) => {
const { error } = reviewSchema.validate(req.body);
if (error) {
const msg = error.details.map(el => el.message).join(',');
throw new ExpressError(msg, 400);
} else {
next();
}
};
module.exports.isReviewAuthor = async (req, res, next) => {
const { id, reviewId} = req.params;
const review = await Review.findById(reviewId);
if (!review) {
req.flash('error', `Can't find that review`);
return res.redirect(`/campgrounds/${id}`);
}
if (!review.author.equals(req.user._id)) {
req.flash('error', 'You have to be the author of this review to do that!');
return res.redirect(`/campgrounds/${id}`);
}
return next();
};