This checkin to GC7QG1Z Oxford’s Wild Wolf Three reflects a geocaching.com log entry. See more of Dan's cache logs.
Temporarily disabled pending repair of Stage 2.
Author: Dan Q
Higher/Lower Datepicker
I’ve written before about the trend in web development to take what the web gives you for free, throw it away, and then rebuild it in Javascript. The rebuilt version is invariably worse in many ways – less-accessible, higher-bandwidth, reduced features, more fragile, etc. – but it’s more convenient for developers. Personally, I try not to value developer convenience at the expense of user experience, but that’s an unpopular opinion lately.
In the site shown in the screenshot above, the developer took something the web gave them for free (a hyperlink), threw it away (by making it a link-to-nowhere), and rebuilt its functionality with Javascript (without thinking about the fact that you can do more with hyperlinks than click them: you can click-and-drag them, you can bookmark them, you can share them, you can open them in new tabs etc.). Ugh.
Date pickers
Particularly egregious are the date pickers. Entering your date of birth on a web form ought to be pretty simple: gov.uk pretty much solved it based on user testing they did in 2013.
Here’s the short of it:
- Something you can clearly type a numeric day, month and year into is best.
- Three dropdowns are slightly worse, but at least if you use native HTML
<select>elements keyboard users can still “type” to filter. - Everything else – including things that look like
<select>s but are really funky React<div>s, is pretty terrible.
My fellow Automattician Enfys recently tweeted:
People designing webforms that require me to enter my birthdate:
I am begging you: just let me type it in.
Typing it in is 6-8 quick keystrokes. Trying to navigate a little calendar or spinny wheels back to the 1970s is time-consuming, frustrating and unnecessary.
They’re right. Those little spinny wheels are a pain in the arse if you’ve got to use one to go back 40+ years.
Can we do worse?
If there’s one thing we learned from making the worst volume control in the world, the other year, it’s that you can always find a worse UI metaphor. So here’s my attempt at making a date of birth field that’s somehow even worse than “date spinners”:
My datepicker implements a game of “higher/lower”. Starting from bounds specified in the HTML code and a random guess, it narrows-down its guess as to what your date of birth is as you click the up or down buttons. If you make a mistake you can start over with the restart button.
Amazingly, this isn’t actually the worst datepicker into which I’ve entered my date of birth! It’s cognitively challenging compared to most, but it’s relatively fast at narrowing down the options from any starting point. Plus, I accidentally implemented some good features that make it better than plenty of the datepickers out there:
- It’s progressively enhanced – if the Javascript doesn’t load, you can still enter your date of birth in a sensible way.
- Because it leans on a
<input type="date">control, your browser takes responsibility for localising, so if you’re from one of those weird countries that prefers mm-dd-yyyy then that’s what you should see. - It’s moderately accessible, all things considered, and it could easily be improved further.
It turns out that even when you try to make something terrible, so long as you’re building on top of the solid principles the web gives you for free, you can accidentally end up with something not-so-bad. Who knew?
Goose-Related Etymologies
Podcast Version
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YouTubeMy favourite thing about geese… is the etymologies of all the phrases relating to geese. There’s so many, and they’re all amazing. I started reading about one, then – silly goose that I am – found another, and another, and another…
For example:
- Barnacle geese are so-called because medieval Europeans believed that they grew out of a kind of barnacle called a goose barnacle, whose shell pattern… kinda, sorta looks like barnacle goose feathers? Barnacle geese breed on remote Arctic islands and so people never saw their chicks, which – coupled with the fact that migration wasn’t understood – lead to a crazy myth that lives on in the species name to this day. Incidentally, this strange belief led to these geese being classified as a fish for the purpose of fasting during Lent, and so permitted. (This from the time period that brought us the Vegetable Lamb of Tartary, of course. I’ve written about both previously.)
- Gooseberries may have a similar etymology. Folks have tried to connect it to old Dutch or Germanic words, but inconclusively: given that they appear at the opposite end of the year to some of the migratory birds goose, the same kind of thinking that gave us “barnacle geese” could be seen as an explanation for gooseberries’ name, too. But really: nobody has a clue about this one. Fun fact: the French name for the fruit is groseille à maquereau, literally “mackerel currant”!
- A gaggle is the collective noun for geese, seemingly derived from the sound they make. It’s also been used to describe groups of humans, especially if they’re gossiping (and disproportionately directed towards women). “Gaggle” is only correct when the geese are on the ground, by the way: the collective noun for a group of airborne geese is skein or plump depending on whether they’re in a delta shape or not, respectively. What a fascinating and confusing language we have!
- John Stephen Farmer helps us with a variety of goose-related sexual slang though, because, well, that was his jam. He observes that a goose’s neck was a penis and gooseberries were testicles, goose-grease is vaginal juices. Related: did you ever hear the euphemism for where babies come from “under a gooseberry bush“? It makes a lot more sense when you realise that gooseberry bush was slang for pubic hair.
- An actor whose performance wasn’t up to scratch might describe the experience of being goosed; that is – hissed at by the crowd. Alternatively, goosing can refer to a a pinch on the buttocks possibly in reference to geese pecking humans at about that same height.
- If you have a gander at something you take a good look at it. Some have claimed that this is rhyming slang – “have a look” coming from “gander and duck” – but I don’t buy it. Firstly, why wouldn’t it be “goose and duck” (or “gander and drake“, which doesn’t rhyme with “look” at all). And fake, retroactively-described rhyming roots are very common: so-called mockney rhyming slang! I suspect it’s inspired by the way a goose cranes its neck to peer at something that interests it! (“Crane” as a verb is of course also a bird-inspired word!)
- Goosebumps might appear on your skin when you’re cold or scared, and the name alludes to the appearance of plucked poultry. Many languages use geese, but some use chickens (e.g. French chair de poule, “chicken flesh”). Fun fact: Slavic languages often use anthills as the metaphor for goosebumps, such as Russian мурашки по коже (“anthill skin”). Recently, people talk of tapping into goosebumps if they’re using their fear as a motivator.
- A tailor’s goose is a traditional kind of iron so-named for the shape of its handle.
- The childrens game of duck duck goose is played by declaring somebody to be a “goose” and then running away before they catch you. Chasing – or at risk of being chased by! – geese is common in metaphors: if somebody wouldn’t say boo to a goose they’re timid. A wild goose chase (yet another of the many phrases for which we can possibly thank Shakespeare, although he probably only popularised this one) begins without consideration of where it might end up.
- If those children are like their parents, you might observe that a wild goose never laid a tame egg: that traits are inherited and predetermined.
- Until 1889, the area between Blackfriars and Tower Bridge in London – basically everything around Borough tube station up to the river – was considered to be outside the jurisdiction of both London and Surrey, and fell under the authority of the Bishop of Winchester. For a few hundred years it was the go-to place to find a prostitute South of the Thames, because the Bishop would license them to be able to trade there. These prostitutes were known as Winchester geese. As a result, to be bitten by a Winchester goose was to contract a venereal disease, and goosebumps became a slang term for the symptoms of some such diseases.
- Perennial achillea ptarmica is known, among other names, as goose tongue, and I don’t know why. The shape of the plant isn’t particularly similar to that of a goose’s tongue, so I think it might instead relate to the effect of chewing the leaves, which release a spicy oil that might make your tongue feel “pecked”? Goose tongue can also refer to plantago maritima, whose dense rosettes do look a little like goose tongues, I guess. Honestly, I’ve no clue about this one.
- If you’re sailing directly downwind, you might goose-wing your sails, putting the mainsail away from the wind and the jib towards it, for balance and to easily maintain your direction. Of course, a modern triangular-sailed boat usually goes faster broad reach (i.e. at an angle of about 45º to the wind) by enough that it’s faster to zig-zag downwind rather than go directly downwind, but I can see how one might sometimes want to try this anatidaetian maneuver.
Geese make their way all over our vocabulary. If it’s snowing, the old woman is plucking her
goose. If it’s fair to give two people the same thing (and especially if one might consider not doing so on account of their sex), you might say that what’s good
for the goose is good for the gander, which apparently used to use
the word “sauce” instead of “good”. I’ve no idea where the idea of cooking someone’s goose comes from, nor why anybody thinks that a goose step
march might look anything like the way a goose walks waddles.
With apologies to Beverley, whose appreciation of geese (my take, previously) is something else entirely but might well have got me thinking about this in the first instance.
Parcel Delivery Scammers Could Try Harder
There’s a lot of talk lately about scam texts pretending to be from Royal Mail (or other parcel carriers), tricking victims into paying a fee to receive a parcel. Hearing of recent experiences with this sort of scam inspired me to dissect the approach the scammers use… and to come up with ways in which the scams could be more-effective.
Let’s take a look at a scam:
Anatomy of a Parcel Fee Scam
A parcel fee scam begins with a phishing email or, increasingly, text message, telling the victim that they need to pay a fee in order to receive a parcel and directing them to a website to make payment.
If the victim clicks the link, they’ll likely see a fake website belonging to the company who allegedly have the victim’s parcel. They’ll be asked for personal and payment information, after which they’ll be told that their parcel is scheduled for redelivery. They’ll often be redirected back to the real website as a “convincer”. The redirects often go through a third-party redirect site so that your browser’s “Referer:” header doesn’t give away the scam to the legitimate company (if it did, they could e.g. detect it and show you a “you just got scammed by somebody pretending to be us” warning!).
Many scammers also set a cookie so they’ll recognise you if you come back: if you return to the scam site with this cookie in-place, they’ll redirect you instantly to the genuine company’s site. This means that if you later try to follow the link in the text message you’ll see e.g. the real Royal Mail website, which makes it harder for you to subsequently identify that you’ve been scammed. (Some use other fingerprinting methods to detect that you’ve been victimised already, such as your IP address.)
Typically, no payment is actually taken. Often, the card number and address aren’t even validated, and virtually any input is accepted. That’s because this kind of scam isn’t about tricking you into giving the scammers money. It’s about harvesting personal information for use in a second phase.
Once the scammers have your personal information they’ll either use your card details to make purchases of hard-to-trace, easy-to-resell goods like gift cards or, increasingly, use all of the information you’ve provided in order to perform an even more-insidious trick. Knowing your personal, contact and bank details, they can convincingly call you and pretend to be your bank! Some sophisticated fraudsters will even highlight the parcel fee scam you just fell victim to in order to gain your trust and persuade you that they’re genuinely your bank, which is a very powerful convincer.
Why does the scam work?
A scam like the one described above works because each individual part of it is individually convincing, but the parts are delivered separately.
Being asked to pay a fee to receive a parcel is a pretty common experience, and getting texts from carriers is too. A lot of people are getting a lot more stuff mail-ordered than they used to, right now, and that – along with the Brexit-related import duties that one in ten people have had to pay – means that it seems perfectly reasonable to get a message telling you that you need to pay a fee to get your parcel.
Similarly, I’m sure we’ve all been called by our bank to discuss a suspicious transaction. (When this happens to me, I’ve always said that I’ll call them back on the number on my card or my bank statements rather than assume that they are who they claim to be. When I first started doing this, 20 years ago, this sometimes frustrated bank policies, but nowadays they’re more accepting.) Most people though will willingly believe the legitimacy of a person who calls them up, addresses them by name and claims to be from their bank.
Separating the scam into two separate parts, each of which is individually unsuspicious, makes it more effective at tricking the victim than simpler phishing scams.
Anybody could fall for this. It’s not about being smart and savvy; lots of perfectly smart people become victims of this kind of fraud. Certainly, there are things you can do (like learning to tell a legitimate domain name from a probably-fake one and only ever talking to your bank if you were the one who initiated the call), but we’re all vulnerable sometimes. If you were expecting a delivery, and it’s really important, and you’re tired, and you’re distracted, and then a text message comes along pressuring you to pay the fee right now… anybody could make a mistake.
The scammers aren’t really trying
But do you know what: these scammers aren’t even trying that hard. There’s so much that they could be doing so much “better”. I’m going to tell you, off the top of my head, four things that they could do to amplify their effect.
Wait a minute: am I helping criminals by writing this? No, I don’t think so. I believe that these are things that they’ve thought of already. Right now, it’s just not worthwhile for them to pull out all the stops… they can make plenty of money conning people using their current methods: they don’t need to invest the time and energy into doing their shitty job better.
But if there’s one thing we’ve learned it’s that digital security is an arms race. If people stop falling for these scams, the criminals will up their game. And they don’t need me to tell them how.
I’m a big fan of trying to make better attacks. Even just looking at site-spoofing scams I’ve been doing this for a couple of decades. Because if we can collectively get ahead of security threats, we’re better able to defend against them.
So no: this isn’t about informing criminals – it’s about understanding what they might do next.
How could the scammers be more effective?
I’d like to highlight four ways that this scam could be made more-effective. Again, this isn’t about helping the criminals: it’s about thinking about and planning for what tomorrow’s attacks might look like.
1. SMS Spoofing
Most of these text messages appear to come from random mobile numbers, which can be an red flag. But it’s distressingly easy to send a text message “from” any other number or even from a short string of text. Imagine how much more-convincing one of these messages would be if it appeared to come from e.g. “Royal Mail” instead?
A further step would be to spoof the message to appear to come from the automated redelivery line of the target courier. Many parcel delivery services have automated lines you can call, provide the code from the card dropped through your door, and arrange redelivery: making the message appear to come from such a number means that any victim who calls it will hear a genuine message from the real company, although they won’t be able to use it because they don’t have a real redelivery card. Plus: any efforts to search for the number online (as is done automatically by scam-detection apps) will likely be confused by the appearance of the legitimate data.
SMS spoofing is getting harder as the underlying industry that supports bulk senders tries to clean up its image, but it’s still easy enough to be a real (yet underexploited) threat.
2. Attention to detail
Scammers routinely show a lack of attention to detail that can help give the game away to an attentive target. Spelling and grammar mistakes are commonplace, and compared to legitimate messages the scams generally have suspicious features like providing few options for arranging redelivery or asking for unusual personal information.
They’re getting a lot better at this already: text messages and emails this year are far more-convincing, from an attention-to-detail perspective, than they were three years ago. And because improvements to the scam can be made iteratively, it’s probably already close to the “sweet spot” at the intersection of effort required versus efficacy. But the bad guys’ attention to detail will only grow and in future they’ll develop richer, more-believable designs and content based on whatever success metrics they collect.
3. Tracking tokens
On which note: it amazes me that these SMS scams don’t yet seem to include any identifier unique to the victim. Spam
email does this all the time, but a typical parcel scam text directs you to a simple web address like https://royalmail.co.uk.scamsite.com/. A smarter scam could
send you to e.g. https://royalmail.co.uk.scamsite.com/YRC0D35 and/or tell you that your parcel tracking number was e.g. YRC0D35.
Not only would this be more-convincing for anybody who’s familiar with the kind of messages that are legitimately left by couriers, it would also facilitate the gathering of a great deal of additional metrics which scammers could use to improve their operation. For example:
- How many, and which, potential victims clicked the link? Knowing this helps plan future scams, or for follow-up attacks.
- Pre-filling personal data, even just a phone number, acts as an additional convincer, or else needn’t be asked at all.
- Multivariate testing can determine which approaches work best: show half the victims one form and half the victims another and use the results as research for future evolution.
These are exactly the same techniques that legitimate marketers (and email spammers) use to track engagement with emails and advertisements. It stands to reason that any sufficiently-large digital fraud operation could benefit from them too.
4. Partial submission analysis
I’ve reverse-engineered quite a few parcel scams to work out what they’re recording, and the summary is: not nearly as much as they could be. A typical parcel scam site will ask for your personal details and payment information, and when you submit it will send that information to the attacker. But they could do so much more…
I’ve spoken to potential victims, for example, who got part way through filling the form before it felt suspicious enough that they stopped. Coupled with tracking tokens, even this partial data would have value to a determined fraudster. Suppose the victim only gets as far as typing their name and address… the scammer now has enough information to convincingly call them up, pretending to be the courier, ask for them by name and address, and con them out of their card details over the phone. Every single piece of metadata has value; even just having the victim’s name is a powerful convincer for a future text message campaign.
Summary
There’s so much more that parcel fee SMS scammers could be doing to increase the effectiveness of their campaigns, such as the techniques described above. It’s not rocket science, and they’ll definitely have considered them (they won’t learn anything new from this post!)… but if we can start thinking about them it’ll help us prepare to educate people about how to protect themselves tomorrow, as well as today.
Geohashing expedition 2021-06-26 51 -1
This checkin to geohash 2021-06-26 51 -1 reflects a geohashing expedition. See more of Dan's hash logs.
Location
Woodland on Bladon Heath
Participants
Plans
Thought I’d get up early and cycle up to the hashpoint and back this morning.
Expedition
Unfortunately I forgot to bring a bike lock, and so when I reached the cycle-inaccessible path across the heath and couldn’t find somewhere to safely leave my bike, I had to give up. Still a nice ride, though.
Tracklog
My GPSr kept a tracklog of the 25km round trip:
Dan Q couldn’t find GC7PEG1 The Cachington Tour
This checkin to GC7PEG1 The Cachington Tour reflects a geocaching.com log entry. See more of Dan's cache logs.
Managed to answer the questions about the pub, war memorial, and village hall, but the church was locked up tight this morning and I couldn’t find the final clue. :-(
Creed Cult-ure
My employer, Automattic, has a creed. Right now it reads:
I will never stop learning. I won’t just work on things that are assigned to me. I know there’s no such thing as a status quo. I will build our business sustainably through passionate and loyal customers. I will never pass up an opportunity to help out a colleague, and I’ll remember the days before I knew everything. I am more motivated by impact than money, and I know that Open Source is one of the most powerful ideas of our generation. I will communicate as much as possible, because it’s the oxygen of a distributed company. I am in a marathon, not a sprint, and no matter how far away the goal is, the only way to get there is by putting one foot in front of another every day. Given time, there is no problem that’s insurmountable.
Lots of companies have something like this, even if it falls short of a “creed”. It could be a “vision”, or a set of “values”, or something in that line.
Of course, sometimes that just means they’ve strung three clichéd words together because they think it looks good under their company logo, and they might as well have picked any equally-meaningless words.
Company Name
- respect
- integrity
- teamwork
But while most companies (and their staff) might pay lip service to their beliefs, Automattic’s one of few that seems to actually live it. And not in an awkward, shoehorned-in way: people here actually believe this stuff.
By way of example:
We’ve got a bot that, among other things, pairs up people from across the company for virtual “watercooler chat”/”coffee dates”/etc. It’s cool: I pair-up with random colleagues in my division, or the whole company, or fellow queermatticians… and collectively these provide me a half-hour hangout about once a week. It’s a great way to experience the diversity of culture, background and interests of your colleagues, as well as being a useful way to foster idea-sharing and “watercooler effect” serendipity.
For the last six months or so, I’ve been bringing a particular question to almost every random-chat I’ve been paired into:
What part of the Automattic creed resonates most-strongly for you right now?
I volunteer my own answer first. It’s varied over time. Often I’m most-attached to “I will never stop learning.” Other times I connect best to “I will communicate as much as possible…” or “I am in a marathon, not a sprint…”. Lately I’ve felt a particular engagement with “I will never pass up the opportunity to help a colleague…”.
It varies for other people too. But every single person I’ve asked this question has been able to answer it. And they’ve been able to answer it confidently and with justifications for or examples of their choice.
Have you ever worked anywhere before where seemingly all your coworkers profess a genuine belief in the corporate creed? Like, enough that some of them get it tattooed onto their bodies. Unless you’ve been brainwashed by a cult, the answer is probably no.
Why are Automatticians like that?
For some folks, of course, the creed is descriptive rather than prescriptive. Regarding its initial creation, Matt says that “as a hack to introduce new folks to our culture, we put a beta Automattic Creed, basically a statement of things important to us, written in the first person.”
But this alone isn’t an explanation, because back then there were only around a hundred people in the company: nowadays there are over 1,500. So how can the creed continue to be such a pervasive influence? Or to put it another way: why are Automatticians… like that?
- Do we simply attract like-minded individuals? The creed is highly visible and cross-referenced by our recruitment pages, so it wouldn’t be entirely surprising.
- Maybe we filter for people who are ideologically-compatible with the creed? Insofar as the qualities it describes are essential to integrating into our corporate culture, yes: our recruitment process does a great job of testing for those qualities.
- Perhaps we converge on these values as a result of our experience as Automatticians? Once you’re in, you’re indoctrinated into the tenets of the creed and internalise its ideas.
- Or perhaps it’s a combination of the three, in some ratio or another. (What’s the ratio?)
I’ve been here 1⅔ years and don’t know the answer yet. But I’ll tell you this: it’s inspiring to be part of a team that really seem to believe in what they do.
Incidentally: if the creed speaks to you too, you might like to look at some of the many open positions! I promise we’re not actually a cult.
Plus we’ve been doing “work anywhere” for longer than almost anybody else and we’re really, really good at it.
If you enjoyed this, you might also like other blog posts about my time with Automattic: the recruitment process, accepting an offer, my induction, and the experience of lockdown in a distributed company, among others.
Dan Q posted a note for GC8W7QW Forgotten Bridge
This checkin to GC8W7QW Forgotten Bridge reflects a geocaching.com log entry. See more of Dan's cache logs.
Dropped by while out for a walk and discovered that “Gina + Kylie”, a pair of presumably non-geocachers, found the cache on Tue 8 June and left a note in the logbook! This is cool, not just because it’s always nice to find a friendly muggle but also because it proves that this path isn’t exclusively used by me (and by geocachers following in my footsteps) as I’d thought. Awesome!
Note #18760
Ahead of schedule on work project. Invited to 2nd COVID jab next week. Spent half of day working on laptop in sunny garden. Parcel arrived from @LEGO_group with Everyone Is Awesome model (pictured).
Today was a Good Day.
Note #18755
Just learned Tuca & Bertie is getting a 2nd season (thanks Adult Swim, no thanks Netflix). Super excited. In anticipation I’m rewatching season 1 of this sort-of “upbeat feminist Bojack Horseman” and (re)loving it.
Getting Twitter Avatars (without the Twitter API)
Among Twitter’s growing list of faults over the years are various examples of its increasing divergence from open Web standards and developer-friendly endpoints. Do you remember when you used to be able to subscribe to somebody’s feed by RSS? When you could see who follows somebody without first logging in? When they were still committed to progressive enhancement and didn’t make your browser download ~5MB of Javascript or else not show any content whatsoever? Feels like a long time ago, now.
But those complaints aside, the thing that bugged me most this week was how much harder they’ve made it to programatically get access to things that are publicly accessible via web pages. Like avatars, for example!
If you’re a human and you want to see the avatar image associated with a given username, you can go to twitter.com/that-username and – after you’ve waited
a bit for all of the mandatory JavaScript to download and run (I hope you’re not on a metered connection!) – you’ll see a picture of the user, assuming they’ve uploaded one and not made
their profile private. Easy.
If you’re a computer and you want to get the avatar image, it used to be just as easy; just go to
twitter.com/api/users/profile_image/that-username and you’d get the image. This was great if you wanted to e.g. show a Facebook-style facepile of images of people who’d retweeted your content.
But then Twitter removed that endpoint and required that computers log in to Twitter, so a clever developer made
a service that fetched avatars for you if you went to e.g. twivatar.glitch.com/that-username.
But then Twitter killed that, too. Because despite what they claimed 5½ years ago, Twitter still clearly hates developers.
Recently, I needed a one-off program to get the avatars associated with a few dozen Twitter usernames.
First, I tried the easy way: find a service that does the work for me. I’d used avatars.io before but it’s died, presumably because (as I soon discovered) Twitter had made
things unnecessarily hard for them.
Second, I started looking at the Twitter API documentation but it took me in the region of 30-60 seconds before I said “fuck that noise” and decided that the set-up overhead in doing things the official way simply wasn’t justified for my simple use case.
So I decided to just screen-scrape around the problem. If a human can just go to the web page and see the image, a computer pretending to be a human can do exactly the same. Let’s do this:
/* Copyright (c) 2021 Dan Q; released under the MIT License. */ const Puppeteer = require('puppeteer'); getAvatar = async (twitterUsername) => { const browser = await Puppeteer.launch({args: ['--no-sandbox', '--disable-setuid-sandbox']}); const page = await browser.newPage(); await page.goto(`https://twitter.com/${twitterUsername}`); await page.waitForSelector('a[href$="/photo"] img[src]'); const url = await page.evaluate(()=>document.querySelector('a[href$="/photo"] img').src); await browser.close(); console.log(`${twitterUsername}: ${url}`); }; process.argv.slice(2).forEach( twitterUsername => getAvatar( twitterUsername.toLowerCase() ) );
Obviously, using this code would violate Twitter’s terms of use for automation, so… don’t, I guess?
Given that I only needed to run it once, on a finite list of accounts, I maintain that my approach was probably kinder on their servers than just manually going to every page and saving the avatar from it. But if you set up a service that uses this approach then you’ll certainly piss off somebody at Twitter and history shows that they’ll take their displeasure out on you without warning.
$ node get-twitter-avatar.js alexsdutton richove geohashing TailsteakAD LilFierce1 ninjanails
alexsdutton: https://pbs.twimg.com/profile_images/740505937039986688/F9gUV0eK_200x200.jpg
lilfierce1: https://pbs.twimg.com/profile_images/1189417235313561600/AZ2eLjAg_200x200.jpg
richove: https://pbs.twimg.com/profile_images/1576438972/2011_My_picture4_200x200.jpeg
geohashing: https://pbs.twimg.com/profile_images/877137707939581952/POzWWV2d_200x200.jpg
ninjanails: https://pbs.twimg.com/profile_images/1146364466801577985/TvCfb49a_200x200.jpg
tailsteakad: https://pbs.twimg.com/profile_images/1118738807019278337/y5WWkLbF_200x200.jpg
But it works. It was fast and easy and I got what I was looking for.
And the moral of the story is: if you make an API and it’s terrible, don’t be surprised if people screen-scape your service instead. (You can’t spell “scraping” without “API”, amirite?)
Mow-Rio Kart
This is a repost promoting content originally published elsewhere. See more things Dan's reposted.
I have this exact same ride-on mower, but mine doesn’t do this. I feel cheated.
Note #18572
Hey @LloydsBank! 2009 called and asked if you’re done sending your customers links to unencrypted HTTP endpoints yet. How do you feel about switching this to a HTTPS link rather than relying on an interceptable/injectable HTTP request?
Ireland and the UK Aren’t In The Same Timezone!
This weekend, while investigating a bug in some code that generates iCalendar (ICS) feeds, I learned about a weird quirk in the Republic of Ireland’s timezone. It’s such a strange thing (and has so little impact on everyday life) that I imagine that even most Irish people don’t even know about it, but it’s important enough that it can easily introduce bugs into the way that computer calendars communicate:
Most of Europe put their clocks forward in Summer, but the Republic of Ireland instead put their clocks backward in Winter.
If that sounds to you like the same thing said two different ways – or the set-up to a joke! – read on:
A Brief History of Time (in Ireland)
After high-speed (rail) travel made mean solar timekeeping problematic, Great Britain in 1880 standardised on Greenwich Mean Time (UTC+0) as the time throughout the island, and Ireland standardised on Dublin Mean Time (UTC-00:25:21). If you took a ferry from Liverpool to Dublin towards the end of the 19th century you’d have to put your watch back by about 25 minutes. With air travel not yet being a thing, countries didn’t yet feel the need to fixate on nice round offsets in the region of one-hour (today, only a handful of regions retain UTC-offsets of half or quarter hours).
That’s all fine in peacetime, but by the First World War and especially following the Easter Rising, the British government decided that it was getting too tricky for their telegraph operators (many of whom operated out of Ireland, which provided an important junction for transatlantic traffic) to be on a different time to London.
Ah. Hmm.
Following Irish independence, the keeping of time carried on in much the same way for a long while, which will doubtless have been convenient for families spread across the Northern Irish border. But then came the Second World War.
Summers in the 1940s saw Churchill introduce Double Summer Time which he believed would give the UK more daylight, saving energy that might otherwise be used for lighting and increasing production of war materiel.
Ireland considered using the emergency powers they’d put in place to do the same, as a fuel saving measure… but ultimately didn’t. This was possibly because aligning her time with Britain might be seen as undermining her neutrality, but was more likely because the government saw that such a measure wouldn’t actually have much impact on fuel use (it certainly didn’t in Britain). Whatever the reason, though, Britain and Northern Ireland were again out-of-sync with one another until the war ended.
From 1968 to 1971 Britain experimented with “British Standard Time” – putting the clocks forward in Summer once, to UTC+1, and then leaving them there for three years. This worked pretty well except if you were Scottish in which case you’ll have found winter mornings to be even gloomier than you were used to, which was already pretty gloomy. Conveniently: during much of this period Ireland was also on UTC+1, but in their case it was part of a different experiment. Ireland were working on joining the European Economic Community, and aligning themselves with “Paris time” year-round was an unnecessary concession but an interesting idea.
But here’s where the quirk appears: the Standard Time Act 1968, which made UTC+1 the “standard” timezone for the Republic of Ireland, was not repealed and is still in effect. Ireland could have started over in 1971 with a new rule that made UTC+0 the standard and added a “Summer Time” alternative during which the clocks are put forward… but instead the Standard Time (Amendment) Act 1971 left UTC+1 as Ireland’s standard timezone and added a “Winter Time” alternative during which the clocks are put back.
(For a deeper look at the legal history of time in the UK and Ireland, see this timeline. Certainly don’t get all your history lessons from me.)
So what?
You might rightly be thinking: so what! Having a standard time of UTC+0 and going forward for the Summer (like the UK), is functionally-equivalent to having a standard time of UTC+1 and going backwards in the Winter, like Ireland, right? It’s certainly true that, at any given moment, a clock in London and a clock in Dublin should show the same time. So why would anybody care?
Europe/Dublin, from the Perl module Data::ICal::TimeZone, is technically-incorrect
because it states that the winter time is the standard and daylight savings of +1 hour apply in the summer, rather than the opposite.
But declaring which is “standard” is important when you’re dealing with computers. If, for example, you run a volunteer rota management system that supports a helpline charity that has branches in both the UK and Ireland, then it might really matter that the computer systems involved know what each other mean when they talk about specific times.
The author of an iCalendar file can choose to embed timezone information to explain what, in that file, a particular timezone means. That timezone information might say, for example, “When I say ‘Europe/Dublin’, I mean UTC+1, or UTC+0 in the winter.” Or it might say – like the code above! – “When I say ‘Europe/Dublin’, I mean UTC+0, or UTC+1 in the summer.” Both of these declarations would be technically-valid and could be made to work, although only the first one would be strictly correct in accordance with the law.
But if you don’t include timezone information in your iCalendar file, you’re relying on the feed subscriber’s computer (e.g. their calendar software) to make a sensible interpretation.. And that’s where you run into trouble. Because in cases like Ireland, for which the standard is one thing but is commonly-understood to be something different, there’s a real risk that the way your system interprets and encodes time won’t necessarily be the same as the way somebody else’s does.
If I say I’ll meet you at 12:00 on 1 January, in Ireland, you rightly need to know whether I’m talking about 12:00 in Irish “standard” time (i.e. 11:00, because daylight savings are in effect) or 12:00 in local-time-at-the-time-of-the-meeting (i.e. 12:00). Humans usually mean the latter because we think in terms of local time, but when your international computer system needs to make sure that people are on a shift at the same time, but in different timezones, it needs to be very clear what exactly it means!
And when your daylight savings works “backwards” compared to everybody else’s… that’s sure to make a developer somewhere cry. And, possibly, blog about your weird legislation.
Dan Q performed maintenance for GC8W7QW Forgotten Bridge
This checkin to GC8W7QW Forgotten Bridge reflects a geocaching.com log entry. See more of Dan's cache logs.
The rain finally stopped this afternoon so I figured I’d take my next Zoom meeting outdoors with me and stretch my legs while I talked to work colleagues. And so I went, selfie-stick ahead of me and chatting to teammates in New York and Florence (what a world we live in!), out for a ramble and soon remembered that I was carrying Duck Race / Mustache Pink, a travel bug I’d picked up near Lands End this weekend. So I diverted my walk to come and check up on this cache (it’s looking fine!) and drop off the TB for the next leg of its journey!
