Personal blog written from scratch using Node.js, Bootstrap, and MySQL. https://jrtechs.net
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const utils = require('./utils');
const whiskers = require('whiskers');
const includes = require("../includes/includes");
const cache = require('memory-cache');
/** used to parse the request URL */
const url = require('url');
const TEMPLATE_FILE="blog/blogMain.html";
const PAGINATION_TEMPLATE_KEY = "paginationTemplate";
const PAGINATION_TEMPLATE_FILE = "blog/paginationBar.html";
module.exports =
{
/**
* Displays 404 error to user
*
* @param result
* @returns {*}
*/
print404: function(result)
{
includes.include("includes/html/404.html").then(function(html)
{
result.write(html);
result.end();
})
},
constructAdminPage: function(request, result, templateFiller)
{
var templateContext = Object();
var promises = [];
promises.push(includes.fetchTemplate("admin/adminMain.html"));
promises.push(includes.printAdminHeader(templateContext));
promises.push(includes.printFooter(templateContext));
if(module.exports.loggedIn(request))
{
templateContext.loggedIn = true;
promises.push(templateFiller(templateContext));
}
else
{
//login
const clientAddress = (request.headers['x-forwarded-for'] || '').split(',')[0]
|| request.connection.remoteAddress;
promises.push(require("../admin/login").main(request, clientAddress,templateContext));
}
Promise.all(promises).then(function(content)
{
result.write(whiskers.render(content[0], templateContext));
result.end();
}).catch(function(err)
{
console.log(err);
throw err;
});
},
adminPostPageWithOutput: function(request, result, templateFiller)
{
utils.getPostData(request).then(function(postData)
{
var templateContext = Object();
var promises = [];
promises.push(includes.fetchTemplate("admin/adminMain.html"));
promises.push(includes.printAdminHeader(templateContext));
promises.push(includes.printFooter(templateContext));
if (module.exports.loggedIn(request))
{
templateContext.loggedIn = true;
promises.push(templateFiller(templateContext, postData));
}
else
{
//login
const clientAddress = (request.headers['x-forwarded-for'] || '').split(',')[0]
|| request.connection.remoteAddress;
promises.push(require("../admin/login").main(request, clientAddress, templateContext));
}
Promise.all(promises).then(function (content)
{
result.write(whiskers.render(content[0], templateContext));
result.end();
}).catch(function (err) {
console.log(err);
throw err;
});
});
},
adminPostRoute: function(request, templateFiller)
{
return new Promise(function(resolve, reject)
{
utils.getPostData(request).then(function(postData)
{
templateFiller(postData).then(function()
{
resolve();
})
}).catch(function(e)
{
reject(e);
})
})
},
loggedIn(request)
{
return(request.session && request.session.user);
},
buildBlogPageWithURL: function(request, result, templateFiller, filename)
{
var page = request.query.page;
if(typeof page == "undefined")
page = 1;
page = Number(page);
const html = cache.get(filename + "?page=" + page);
result.writeHead(200, {'Content-Type': 'text/html'});
if (html == null)
{
var templateContext = Object();
Promise.all([includes.fetchTemplate(TEMPLATE_FILE),
includes.includeInObject(PAGINATION_TEMPLATE_KEY, templateContext, "templates/" + PAGINATION_TEMPLATE_FILE),
includes.printHeader(templateContext),
includes.printFooter(templateContext),
templateFiller(filename, request, templateContext),
require("../blog/sidebar.js").main(templateContext)])
.then(function (content)
{
console.log(JSON.stringify(content));
const html = whiskers.render(content[0], templateContext);
result.write(html);
result.end();
cache.put(filename + "?page=" + page, html);
}).catch(function (err)
{
console.log("dewie");
console.log(err);
cache.del(filename + "?page=" + page);
module.exports.print404(result)
});
}
else
{
result.write(html);
result.end();
}
},
buildBlogPage: function(request, result, templateFiller)
{
var filename = url.parse(request.url, true).pathname;
module.exports.buildBlogPageWithURL(request, result,templateFiller, filename);
},
/**
* Clears the memory cache.
*/
clearCache: function()
{
console.log("Blog cache cleared");
cache.clear();
}
};