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Search - "server side check"
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CS teacher tip of the day:
server side input checks and sanitization are always useless. because nowdays all browsers have javascript enabled by default and nobody disables it. so client-side checks are safe.
me: ***WTF!?!***11 -
So they were having trouble with the server always being slow and maxed to 100%, so the boss told me when wait times were hitting 5+mins due to server trying to catch up, he complained at me, said if I could get the wait time to 30sec to instant he would raise my pay to 90k a year, then walked away after I agreed, I was quite serious but I don't think he thought I was, so I decided to look over the system, IDK who but they put all the calculations and processing server-side for the CA's on floor then sent the completed view to the CA, so I spent months recreating the entire system except the server only pulled the data needed then the new client would do all the processing on their computer since they weren't doing anything anyways, I did a practice run today as its one of our peak days, wait times went to barely 5secs or "instant" according to CA's, I walked into the office, slapped that hourly report down after just two hours and showed the massive increase in employees production times.
That look on his face...
That look on my face...
That look on my next check...
Bliss10 -
So that high level prank from yesterday.
Senior Linux engineer, the fucker.
He somehow installed shitloads of cron jobs onto my system.
Every few minutes it would create a new user with a freaking complicated password. Then it would install openssh server in case it wasn't installed yet. After that it'd set all iptables rules to allow incoming AND outgoing connections on port 22.
That was one badass ansible script though!
I'm not sure what more there's to it because sometimes when i removed crons, they'd magically appear again later AND i forgot to check the boot scripts so i might be fucked again when I get to work today!
Plus side, i finally fully understand cron 😅19 -
TABLE BASED WEB DESIGN
I was surprised there were no rants about this topic before I realized it was more than a decade back 😳
We've never had it better! So to help add a little perspective for all those ranting about what is unarguably the golden age for web developers... let me fill you in on web dev in the late 90's;
JavaScript was a joke. No seriously! - I once got laughed out of the room for suggesting we try use it for more than disabling a button - (I wanted to check out the new XHR request thingy [read AJAX]).
HTML was simple and purely a markup language (with the exception of the marquee tag). The tags were basically just p,ul,ol,h*,form inputs,img and table and html took 10 minutes to learn. Any style was inline and equally crude - anything that wasn't crude could not be trusted and probably wouldn't render at all in most browsers (never mind render correctly).
There were rumors of a style TAG and something called a cascading style sheet which were received with much skepticism since it went against the old ways and any time saved would be lost writing multiple [IE version specific] style sheets for each browser just to get it to work - so we simply didn't.
No CSS meant the only tags you had to work with to create a structured layout were br, hr and table... so naturally EVERYTHING was in nested tables! JS callback hell can't touch this! - it was not uncommon to have 50+ nested tables all with inline style in a single page which would be edited without any dev tools or linting.
You would spend 30 minutes scanning td tags until your eyes bled to find something, make a change, ftp the file to the server, reload the web page and then spend 10 minutes staring at the devastation on your screen convinced you broke
the internet before spotting an un-closed td tag with your bloodshot eyes.
Tables were not just a silver bullet - they were the ONLY bullet and were in the wild west!
Q: Want an inline form or to align your inputs left?
A: Duh table!
Q: Want a border with round-corners, a shadow or blur?
A: That's easy! Your gonna want to put that table in the center cell of another table then crop a image of the border into 6 smaller images to put in the surrounding cells... oh and then spend 10 minutes fucking with mystical attributes like cell-padding and valign to get them flush.
...But hey at least on the bright-side vertically & horizontally centering stuff was a breeze!22 -
Ladies and gentlemen, prepare yourselves for a rant with a capital R, this is gonna be a long one.
Our story begins well over a year ago while I was still in university and things such as "professionalism" and "doing your job" are suggestions and not something you do to not get fired. We had multiple courses with large group projects that semester and the amount of reliable people I knew that weren't behind a year and in different courses was getting dangerously low. There were three of us who are friends (the other two henceforth known as Ms Reliable and the Enabler) and these projects were for five people minimum. The Enabler knew a couple of people who we could include, so we trusted her and we let them onto the multiple projects we had.
Oh boy, what a mistake that was. They were friends, a guy and a girl. The girl was a good dev, not someone I'd want to interact with out of work but she was fine, and a literal angel compared to the guy. Holy shit this guy. This guy, henceforth referred to as Mr DDTW, is a motherfucking embarrassment to devs everywhere. Lazy. Arrogant. Standards so low they're six feet under. Just to show you the sheer depth of this man's lack of fucks given, he would later reveal that he picked his thesis topic "because it's easy and I don't want to work too hard". I haven't even gotten into the meat of the rant yet and this dude is already raising my blood pressure.
I'll be focusing on one project in particular, a flying vehicle simulator, as this was the one that I was the most involved in and also the one where shit hit the fan hardest. It was a relatively simple-in-concept development project, but the workload was far too much for one person, meaning that we had to apply some rudimentary project management and coordination skills that we had learned to keep the project on track. I quickly became the de-facto PM as I had the best grasp on the project and was doing a lot of the heavy lifting.
The first incident happened while developing a navigation feature. Another teammate had done the basics, all he had to do was use the already-defined interfaces to check where the best place to land would be, taking into account if we had enough power to do so. Mr DDTW's code:
-Wasn't actually an algorithm, just 90 lines of if statements sandwiched between the other teammate's code.
-The if statements were so long that I had to horizontal scroll to see the end, approx 200 characters long per line.
-Could've probably been 20 normal-length lines MAX if he knew what a fucking for loop was.
-Checked about a third of the tiles that it should have because, once again, it's a series of concatenated if statements instead of an actual goddamn algorithm.
-IT DIDN'T FUCKING WORK!
My response was along the lines of "what the fuck is this?". This dipshit is in his final year and I've seen people write better code in their second semester. The rest of the team, his friend included, agreed that this was bad code and that it should be redone properly. The plan was for Mr DDTW to move his code into a new function and then fix it in another branch. Then we could merge it back when it was done. Well, he kept on saying it was done but:
-It still wasn't an algorithm.
-It was still 90 lines.
-They were still 200 characters wide.
-It still only checked a third of the tiles.
-IT STILL DIDN'T FUCKING WORK!
He also had one more task, an infinite loop detection system. He watched while Ms Reliable did the fucking work.
We hit our first of two deadlines successfully. We still didn't have a decent landing function but everything else was nice and polished, and we got graded incredibly well. The other projects had been going alright although the same issue of him not doing shit applied. Ms Reliable and I, seeing the shitstorm that would come if this dude didn't get his act together, lodged a complaint with the professor as a precautionary measure. Little did I know how much that advanced warning would save my ass later on.
Second sprint begins and I'm voted in as the actual PM this time. We have four main tasks, so we assign one person to each and me as a generalist who would take care of the minor tasks as well as help out whoever needed it. This ended up being a lot of reworking and re-abstracting, a lot of helping and, for reasons that nobody ever could have predicted, one of the main tasks.
These main tasks were new features that would need to be integrated, most of which had at least some mutual dependencies. Part of this project involved running our code, which would connect to the professor's test server and solve a server-side navigation problem. The more of these we solved, the better the grade, so understandably we needed an MVP to see if our shit worked on the basic problems and then fix whatever was causing the more advanced ones to fail. We decided to set an internal deadline for this MVP. Guess who didn't reach it?
Hitting the character limit, expect part 2 SOON7 -
Ok story of my most most recent job search (not sure devRant could handle the load if I was to go through them all)
First a little backstory on why I needed to search for a new job:
Joined a small startup in the blockchain space. They were funded through grants from a non-profit setup by the folks who invented the blockchain and raised funds (they gave those funds out to companies willing to build the various pieces of the network and tools).
We were one of a handful of companies working on the early stages of the network. We built numerous "first"s on the network and spent the majority of our time finding bugs and issues and asking others to fix them so it would become possible, for us to do what we signed up for. We ended up having to build multiple server side applications as middleware to plug massive gaps. All going great, had a lot of success, were told face to face by the foundation not to worry about securing more funds at least for the near term as we were "critical to the success of the network".
1 month later a bug was discovered in our major product, was nasty and we had to take it offline. Nobody lost any funds.
1-2 months later again, the inventor of the blockchain (His majesty, Lord dickhead of cuntinstein) decided to join the foundation as he wasn't happy with the orgs progress and where the network now stood. Immediately says "see that small startup over there ... yeah I hate them. Blackball them from getting anymore money. Use them as an example to others that we are not afraid to cut funds if you fuck up"
Our CEO was informed. He asked for meetings with numerous people, including His royal highness, lord cockbag of never-wrong. The others told our CEO that they didn't agree with the decision, but their hands were tied and they were deeply sorry. Our CEO's pleas with The ghost of Christmas cuntyness, just fell on deaf ears.
CEO broke the news to us, he had 3 weeks of funds left to pay salaries. He'd pay us to keep things going and do whatever we could to reduce server costs, so we could leave everything up long enough for our users to migrate elsewhere. We reduced costs a lot by turning off non essential features, he gave us our last pay check and some great referrals. That was that and we very emotionally closed up shop.
When news got out, we then had to defend ourselves publicly, because the loch ness moron, decided to twist things in his favour. So yeah, AMAZING experience!
So an unemployed and broken man, I did the unthinkable ... I set my linkedin to "open to work". Fuck me every moronic recruiter in a 10,000 mile radius came after me. Didn't matter if I was qualified, didn't matter if I had no experience in that language or type of system, didn't matter if my bio explicitly said "I don't work with X, Y or Z" ... that only made them want me more.
I think I got somewhere around 20 - 30 messages per week, 1 - 2 being actually relevant to what I do. Applied to dozens of jobs myself, only contacted back by 1, who badly fucked up the job description and I wasn't a fit at all.
Got an email from company ABC, who worked on the same blockchain we got kicked off of. They were looking for people with my skills and the skills of one other dev in the preious company. They heard what happened and our CEO gave us a glowing recommendation. They largely offered us the job, but both of us said that we weren't interested in working anywhere near, that kick needing prick, again. We wanted to go elsewhere.
Went back to searching, finding nothing. The other dev got a contract job elsewhere. The guy from ABC message me again to say look, we understand your issues, you got fucked around. We can do out best to promise you'll never have to speak to, the abominable jizz stain, again. We'll also offer you a much bigger role, and a decent salary bump on top of that.
Told them i'd think about it. We ended up having a few more calls where they showed me designs of all the things they wanted to do, and plans on how they would raise money if the same thing was to ever happen to them. Eventually I gave in and signed up.
So far it was absolutely the right call. Haven't had to speak to the scrotum at all. The company is run entirely by engineers. Theres no 14 meetings per week to discuss "where we are" which just involves reading our planning tool tickets, out loud. I'm currently being left alone 99% of the week to get work done. and i'm largely in-charge of everything mobile. It was a fucking hellhole of a trip, but I came out the other side better off
I'm sure there is a thought provoking, meaningful quote I could be writing now about how "things always work out" or that crap. But remembering it all just leaves me with the desire to find him and shove a cactus where the sun don't shine
.... happy job hunting everyone!10 -
Dev gets hold of me, says my service is down in QA. Works if he hits it locally, works via Postman, but via the QA app server it gives a 401.
I’m like, look, if it works everywhere else, there’s something wrong on your side in QA.
He insists, no, I must help him, and begins CCing all the managers telling them this system has been down for days.
So I eventually climb into his system, check the credentials they’re using in the QA environment, and sure enough, the password is wrong.6 -
One Thursday noon,
operation manager: (looking at mobile)what the.....something is wrong i am getting bunch of emails about orders getting confirmed.
Colleague dev: (checks the main email where it gets all email sent/received) holy shit all of our clients getting confirmation email for orders which were already cancelled/incomplete.
Me: imediately contacting bluehost support, asking them to down the server so just that we can stopp it, 600+ emails were already sent and people keep getting it.
*calls head of IT* telling the situation because he's not in the office atm.
CEO: wtf is happening with my business, is it a hacker?
*so we have a intrusion somebody messed the site with a script or something*
All of us(dev) sits on the code finding the vulnerabilities , trying to track the issue that how somebody was able to do that.
*After an hour*
So we have gone through almost easch function written in the code which could possibly cause that but unable to find anything which could break it.
Head asking op when did you started getting it actually?
Op: right after 12 pm.
*an other hour passes*
Head: (checking the logs) so right after the last commit, site got updated too?. And....and.....wtf what da hell who wrote this shit in last commit?
* this fuckin query is missing damn where clause* 🤬
Me: me 😰
*long pause, everyone looking at me and i couldn't look at anyone*
The shame and me that how can i do that.
Head: so its you not any intrudor 😡
Further investigating, what the holy mother of #_/&;=568 why cronjob doesn't check how old the order is. Why why why.
(So basically this happened, because of that query all cancelled/incomplete orders got updated damage done already, helping it the cronjob running on all of them sending clients email and with that function some other values got updated too, inshort the whole db is fucked up.)
and now they know who did it as well.
*Head after some time cooling down, asked me the solution for the mess i create*
Me: i took backup just couple of days before i can restore that with a script and can do manual stuff for the recent 2 days. ( operation manager was already calling people and apologising from our side )
Head: okay do it now.
Me: *in panic* wrote a script to restore the records ( checking what i wrote 100000000 times now ), ran...tested...all working...restored the data.
after that wrote an apology email, because of me staff had to work alot and it becomes so hectic just because of me.
* at the end of the day CEO, head, staff accepted apology and asked me to be careful next time, so it actually teached me a lesson and i always always try to be more careful now especially with quries. People are really good here so that's how it goes* 🙂2 -
Warning: long read....
I got a call this morning from a client who was panicking about not being able to login to his web panel.
So I went to the web panel and tried to login and was just redirected back to the login page. No errors or anything (at least visible on the page). Went looking for an error_log file and found it.
It turns out there was an error was showing: Disk quota exceeded.
So I went into the cPanel and checked, he used about 16GB out of 100GB and that got me confused. So I looked around and found out he was using about 510000/500000 inodes.
Went looking trough FTP to see where he has so many files and try and remove some.
Well it turns out that there were about 7 injected websites (warez, online casino, affiliate one etc) and a full hacking web panel on his FTP. After detailed analysis some who actually built the site (I just maintain some parts) made an upload form available to public with any checks on it. Meaning anyone could upload whatever they wanted and the form would allow it.
The worst part is that the client is not allowing us to secure the form with some sort of login or remove it completely (the best option) as it is not really needed but he uses it to upload some pdf catalogs or something.
TL; DR;
Old programmer created an upload form that was accessible to anyone on the web without adding any security or check as to see what kind of files was getting uploaded. Which lead to having maximum number on inodes used on server and client being unable to login.
Side note:
And ofc I had to go and fix the mess behind him again, even though he stopped working a long time ago and I started just recently and have been having nightmares of this project.2 -
Here I am trying to get some tickets for a theater, and I noticed an interesting thing. It seems that the website holds no session persistence. In other words it doesn't check to see if the user has stopped trying to order tickets, instead it holds the seats for about 30 minutes. This is kind of stupid because when you back out, your treated as a completely new session, you have no way of trying to get back the seats you had chosen.
Sooo, what does this mean? It means that I can start selecting a bunch of seats and continue selecting a bunch of seats. There appears to be no server-side checks to prevent someone from just booking the entire theater.
Soooooo, what does this mean? I could potentially spam the entire country's theaters (any that use this website as a booking system) and make it impossible for people to book seats through this website.
What do you guys think? Is this a bug or feature?6 -
Test server not working as expected - check with test team.
Test team experiencing the same problem - report to dev.
Dev team says the issue is not on their side - check with the service owners.
Service owner says it might be a problem with the request and gives me another point of contact - send an email with all the info.
POC says it doesn't have anything to do with him and copies "the right person".
Next person says to ask a different team.
Get reprimanded for asking too many teams.
Jeez idk, maybe if you stopped passing on the blame like a hot potato and actually helped me out I wouldn't need to.5 -
I miss old times rants...So i guess, here it goes mine:
Tomorrow is the day of the first demo to our client of a "forward-looking project" which is totally fucked up, because our "Technical Quality Assurance" - basically a developer from the '90-s, who gained the position by "he is a good guy from my last company where we worked together on sum old legacy project...".
He fucked up our marvellous, loose coupling, publish/subscribe microservice architecture, which was meant to replace an old, un-maintainable enormous monolitch app. Basically we have to replace some old-ass db stored functions.
Everyone was on our side, even the sysadmins were on our side, and he just walked in the conversation, and said: No, i don't like it, 'cause it's not clear how it would even work... Make it an RPC without loose coupling with the good-old common lib pattern, which made it now (it's the 4th 2 week/sprint, and it is a dependency hell). I could go on day and night about his "awesome ideas", and all the lovely e-mails and pull request comments... But back to business
So tomorrow is the demo. The client side project manager accidentally invited EVERYONE to this, even fucking CIO, legal department, all the designers... so yeah... pretty nice couple of swallowed company...
Today was a day, when my lead colleague just simply stayed home, to be more productive, our companys project manager had to work on other prjects, and can't help, and all the 3 other prject members were thinking it is important to interrupt me frequently...
I have to install our projects which is not even had a heart beat... not even on developer machines. Ok it is not a reeeeaaally big thing, but it is 6 MS from which 2 not even building because of tight coupling fucktard bitch..., But ok, i mean, i do my best, and make it work for the first time ever... I worked like 10 ours, just on the first fucking app to build, and deploy, run on the server, connect to db and rabbit mq... 10 FUCKING HOURS!!! (sorry, i mean) and it all was about 1, i mean ONE FUCKING LINE!
Let me explain: spring boot amqp with SSL was never tested before this time. I searched everything i could tought about, what could cause "Connection reset"... Yeah... not so helpful error message... I even have to "hack" into the demo server to test the keystore-truststore at localhost... and all the fucking configs, user names, urls, everything was correct... But one fucking line was missing...
EXCEPT ONE FUCKING LINE:
spring.rabbitmq.ssl.enabled=false # Whether to enable SSL support.
This little bitch took me 6 hours to figure out...so please guys, learn from my fault and check the spring boot appendix for default application properties, if everything is correct, but it is not working...
And of course, if you want SSL then ENABLE it...
spring.rabbitmq.ssl.enabled=true
BTW i really miss those old rants from angry devs, and i hope someone will smile on my fucking torturerant marshall_mathers worklife sugar-free_tateless_cake_decorant_figure_boss missolddays oldtimes_rants5 -
After a few weeks of being insanely busy, I decided to log onto Steam and maybe relax with a few people and play some games. I enjoy playing a few sandbox games and do freelance development for those games (Anywhere from a simple script to a full on server setup) on the side. It just so happened that I had an 'urgent' request from one of my old staff member from an old community I use to own. This staff member decided to run his own community after I sold mine off since I didn't have the passion anymore to deal with the community on a daily basis.
O: Owner (Former staff member/friend)
D: Other Dev
O: Hey, I need urgent help man! Got a few things developed for my server, and now the server won't stay stable and crashes randomly. I really need help, my developer can't figure it out.
Me: Uhm, sure. Just remember, if it's small I'll do it for free since you're an old friend, but if it's a bigger issue or needs a full recode or whatever, you're gonna have to pay. Another option is, I tell you what's wrong and you can have your developer fix it.
O: Sounds good, I'll give you owner access to everything so you can check it out.
Me: Sounds good
*An hour passes by*
O: Sorry it took so long, had to deal with some crap. *Insert credentials, etc*
Me: Ok, give me a few minutes to do some basic tests. What was that new feature or whatever you added?
O: *Explains long feature, and where it's located*
Me: *Begins to review the files* *Internal rage wondering what fucking developer could code such trash* *Tests a few methods, and watches CPU/RAM and an internal graph for usage*
Me: Who coded this module?
O: My developer.
Me: *Calm tone, with a mix of some anger* So, you know what, I'm just gonna do some simple math for ya. You're running 33 ticks a second for the server, with an average of about 40ish players. 33x60 = 1980 cycles a minute, now lets times that by the 40 players on average, you have 79,200 cycles per minute or nearly 4.8 fucking cycles an hour (If you maxed the server at 64 players, it's going to run an amazing fucking 7.6 million cycles an hour, like holy fuck). You're also running a MySQLite query every cycle while transferring useless data to the server, you're clusterfucking the server and overloading it for no fucking reason and that's why you're crashing it. Another question, who the fuck wrote the security of this? I can literally send commands to the server with this insecure method and delete all of your files... If you actually want your fucking server stable and secure, I'm gonna have to recode this entire module to reduce your developer's clusterfuck of 4.8 million cycles to about 400 every hour... it's gonna be $50.
D: *Angered* You're wrong, this is the best way to do it, I did stress testing! *Insert other defensive comments* You're just a shitty developer (This one got me)
Me: *Calm* You're calling me a shitty developer? You're the person that doesn't understand a timer, I get that you're new to this world, but reading the wiki or even using the game's forums would've ripped this code to shreds and you to shreds. You're not even a developer, cause most of this is so disorganized it looks like you copy and pasted it. *Get's angered here and starts some light screaming* You're wasting CPU usage, the game can't use more than 1 physical core, and after a quick test, you're stupid 'amazing' module is using about 40% of the CPU. You need to fucking realize the 40ish average players, use less than this... THEY SHOULD BE MORE INTENSIVE THAN YOUR CODE, NOT THE OPPOSITE.
O: Hey don't be rude to Venom, he's an amazing coder. You're still new, you don't know as much as him. Ok, I'll pay you the money to get it recoded.
Me: Sounds good. *Angered tone* Also you developer boy, learn to listen to feedback and maybe learn to improve your shitty code. Cause you'll never go anywhere if you don't even understand who bad this garbage is, and that you can't even use the fucking wiki for this game. The only fucking way you're gonna improve is to use some of my suggestions.
D: *Leaves call without saying anything*
TL;DR: Shitty developer ran some shitty XP system code for a game nearly 4.8 million times an hour (average) or just above 7.6 million times an hour (if maxed), plus running MySQLite when it could've been done within about like 400 an hour at max. Tried calling me a shitty developer, and got sorta yelled at while I was trying to keep calm.
Still pissed he tried calling me a shitty developer... -
I had spent the last year working on a online store power by woocommerce with over 100k products from various suppliers. This online store utilized a custom API that would take the various formats that suppliers offer their inventory in and made them consistent. Now everything was going swimmingly initially, but then I began adding more and more products using a plug-in called WP all import. I reached around 100k products and the site would take up to an entire minute to load sometimes timing out. I got desperate so I installed several caching plugins, but to no avail this did not help me. The site was originally only supposed to take three to four months but ended up taking an entire year. Then, just yesterday I found out what went wrong and why this woocommerce website with all of these optimizations was still taking anywhere from 60 to 90 seconds to load, or just timing out entirely. I had initially thought that I needed a beefier server so I moved it to a high CPU digitalocean VM. While this did help a little bit, the site was still very slow and now I had very high CPU usage RAM usage and high disk IO. I was seriously stumped the Apache process was using a high amount of CPU and IO along with MYSQL as well. It wasn't until I started digging deeper into the database that I actually found out what the issue was. As I was loading the site I would run 'show process list' in the SQL terminal, I began to notice a very significant load time for one of the tables, so I went to go and check it out. What I did was I ran a select all query on that particular table just to see how full it was and SQL returned a error saying that I had exceeded the maximum packet size. So I was like okay what the fuck...
So I exited my SQL and re-entered it this time with a higher packet size. I ran a query that would count how many rows were in this particular table and the number came out to being in the millions. I was surprised, and what's worse is that this table belong to a plugin that I had attempted to use early in the development process to cache the site. The plugin was deactivated but apparently it had left PHP files within the wp content directory outside of the actual plugin directory, so it's still executing scripts even though the plugin itself was disabled. Basically every time I would change anything on the site, it would recache the whole thing, and it didn't delete any old records. So 100k+ products caching on saves with no garbage collection... You do the math, it's gonna be a heavy ass database. Not only that but it was serialized data, so when it did pull this metric shit ton of spaghetti from the database, PHP then had to deserialize it. Hence the high ass CPU load. I had caching enabled on the MySQL end of things so that ate the ram. I was really desperate to get this thing running.
Honest to God the main reason why this website took so long was because the load times made it miserable to work on. I just thought that the hardware that I had the site on was inadequate. I had initially started the development on a small Linux VM which apparently wasn't enough, which is why I moved it to digitalocean which also seemed to not be enough, so from there I moved to a dedicated server which still didn't seem to be enough. I was probably a few more 60-second wait times or timeouts from recommending a server cluster to my client who I know would not be willing to purchase it. The client who I promised this site to have completed in 3 months and has waited a year. Seriously, I would tell people the struggles that I would go through with this particular site and they would just tell me to just drop the site; just take the money, just take the loss. I refused to, this was really the only thing that was kicking my ass. I present myself as this high-and-mighty developer like I'm just really good at what I do but then I have this WordPress site that's just beating the shit out of me for a year. It was a very big learning experience and it was also very humbling as well, it made me realize that I really don't know as much as I think I might. It was evidence that there is still so much more to learn out there, I did learn a lot from that experience especially about optimizing websites the different types of methods to do that particular lonely on the server side and I'll be able to utilize this knowledge in the future.
I guess the moral of the story is, never really give up. Ultimately things might get so bad that you're running on hopes and dreams. Those experiences are generally the most humbling. Now I can finally present the site that I am basically a year late on to the client who will be so happy that I did not give up on the project entirely. I'll have experienced this feeling of pure euphoria, and help the small business significantly grow their revenue. Helping others is very fulfilling for me, even at my own expense.
Anyways, gonna stop ranting. Running out of characters. If you're still here... Ty for reading :')7 -
Despite common sense, I think technology is not making our lives easier. It's just build chaos on top of chaos.
Take server-side programming for instance.
First you have to find someone to host your thing, or a PaaS provider. Then you have to figure out how much RAM and storage you need, which OS you're going to use. And then there's Docker (which will run on top of a VM on AWS or GCP anyway, making even less sense). And then there's the server technology: nginx, Apache (and many many more; if, that is, you're using a server at all). And then there are firewalls, proxies, SSL. And then you go back to the start, because you have to check if your hosting provider will support the OS or Docker or your server. (I smell infinite recursion here.)
Each of these moving parts come with their own can of worms in terms of configuration and security. A whole bible to read if you want to have the slightest clue about what you're doing.
And then there's the programming language to use and its accompanying frameworks. Can they replace the server technology? Should you? Will they conflict with each other and open yet another backdoor into your system? Is it supported by your hosting provider? (Did I mention an infinite recursion somewhere?)
And then there's the database. Does it have a port to the language/framework of your choosing? Why does it expose an web interface? Is it supposed to replace your server? And why are its security features optional again? (Just so I have to test both the insecure and the secure environments?)
And you haven't written a single line of code yet, mind you.4 -
Dev Diary Entry #56
Dear diary, the part of the website that allows users to post their own articles - based on an robust rights system - through a rich text editor, is done! It has a revision system and everything. Now to work on a secure way for them to upload images and use these in their articles, as I don't allow links to external images on the site.
Dev Diary Entry #57
Dear diary, today I finally finished the image uploading feature for my website, and I have secured it as well as I can.
First, I check filesize and filetype client-side (for user convenience), then I check the same things serverside, and only allow images in certain formats to be uploaded.
Next, I completely disregard the original filename (and extension) of the image and generate UUIDs for them instead, and use fileinfo/mimetype to determine extension. I then recreate the image serverside, either in original dimensions or downsized if too large, and store the new image (and its thumbnail) in a non-shared, private folder outside the webpage root, inaccessible to other users, and add an image entry in my database that contains the file path, user who uploaded it, all that jazz.
I then serve the image to the users through a server-side script instead of allowing them direct access to the image. Great success. What could possibly go horribly wrong?
Dev Diary Entry #58
Dear diary, I am contemplating scrapping the idea of allowing users to upload images, text, comments or any other contents to the website, since I do not have the capacity to implement the copyright-filter that will probably soon become a requirement in the EU... :(
Wat to do, wat to do...1 -
Spend literally two days trying to figure out why I have a 2 hour offset in my timezones for a lamp web app. This isn't even close to my first timezone rodeo.
Check logs, reset Apache/MySQL/PHP timezones in like 100 places. Use 3rd party server side and client side timezone libraries. Moment.js you say? Shit works like a charm... but is, of course, still two hours off.
MySQL is right. PHP is right. Apache is right. PHP libs are in place. Finally convert the entire damn project to use epoch time because I have a deadline, I have no more time to read backwater AWS docs and try to figure out why the hell this Ubuntu EC2 is fucked up, and I literally cannot figure out why in the hell the damn clock is off.
Several days later notice a variable in the main .config file... right in root... 2 hour timezone offset.
Fuuuuuuuuuuuuuuuuuuuuck.8 -
API response.
For a week been working with my project manager remotely.
Then yester night had a tough one.
Me:Please send me the API endpoint so that can test it and see the response.
Him:On my side all is set just consume the response.
Me:As a practice I did first test the API using postman and the response was okay.
Me:As I had already prepared my Retrofit code to consume and parse the response I head to it.
Me:Fast forward 20 minutes into the application I realise getting some unexpected errors thanks to the guy who didn't follow my response format.
Me:I call him asking him to check how he formatted the response .
Him:He claims he formatted it as requested .
Me: Double check my work and am damn right and now raise my voice as I talk to him again and requests him to send me a screenshot of his response and I send mine.
From the screenshots turns out his response is okay as he is working from a damn localhost and my response was coming from the live server.
Feel like strangling him for wasting my previous 30 minutes2 -
I already wrote this story in the comments to some other rant, still it's pretty funny.
So, i was modding my wii u by messing with system files, the only way to do this is to run an homebrew that hosts an ftp server so you can connect with your pc, the thing is, this server was not protected and allowed anonymous login, not an issue if you have a firewall.
BUT i had this console in the DMZ on the router for online play.
~You can see where this is going~
While doing stuff from my pc i started seeing a lot of entries on the console's log and i didn't understand why, i thought filezilla was doing some shit so i closed it but the log was still going, then i realized and quickly shut the server down.
Then i disabled the DMZ and went back to check what happened (unfortunately the log was only shown on screen and not saved, by closing the server i lost it) so looks like the attacker uploaded a lot of files with random names in pretty much every folder.
Due to the random names, I don't know which are system files and which attacker's files so i just kept them there. And today they should still be there.
--Random thinking--
What if the attacker also stole some files, he was hoping to get photos or valuable documents, but just got the console's system files and he thought something along the lines of "wtf is even this".
Also, how likely is that an ip scanner script gets to my ip in the 5 minutes i run the server, and (on the attacker side) how likely is to hack a server just to find out that's a wii u (the least successful console in the last generation)...
Moral of the story: double check your firewall if you are going to run an unprotected server.
That's it, stay safe :P2 -
Is there a standard around checking the checksum of a bundled weapp to make sure it's the same as what the open source codebase would compile to?
I'm working on some opensource blockchain interface software and obviously blockchain passwords are pretty important, so we do all transaction signing client side and password storage client side, but there's no point doing that if the user can't verify that the password isn't being sent off to some server in secret, but the only way to ensure that is with open source software + a checksum check upon loading, because opensource software doesn't mean the deployed version is the exact opensource branch version.
Any ideas?1