Add structured data for SearchAction

Should support a sitelinks searchbox now.

README.md

@@ -15,56 +15,118 @@ Dependencies
 To build:
 
 - Hugo 0.93 or later
-- Make
+- bmake or GNU Make. OpenBSD make (omake) should work too, but I haven't tested it.
 - Git (Hugo uses Git info for features like date last updated)
+- [htmlq](https://github.com/mgdm/htmlq), to parse HTML when fetching some webring links and for some post-processing.
+- POSIX utils: `grep`, `find`, POSIX-compliant `/bin/sh`, etc.
+
+Before deploying, I use some tools to process the output.
+
+- `xmllint`, part of libxml2, to format the generated polygot XHTML5 markup.
+- [sd](https://github.com/chmln/sdA) (for advanced multi-line regex operations, much of which exist to fix `xmllint`'s output)
+
+I also apply static compression at max levels, using the following tools:
+
 - [Efficient Compression Tool](https://github.com/fhanau/Efficient-Compression-Tool) It's like zopfli but more efficient and faster.
-- Brotli (optional; set `NO_STATIC=1` to disable)
-- POSIX utils: grep, find, etc.
+- Brotli
 
 To deploy:
 
-- ssh
-- rsync
-- libzstd
+- rsync, with SSH and zstd support
 
 To lint:
 
-- stylelint
-- csslint
-- pnpm
-- [lychee](https://github.com/lycheeverse/lychee)
+- stylelint, invoked using pnpm.
+- [lychee](https://github.com/lycheeverse/lychee), to check broken links.
+- A very recent build of the w3c's [Nu HTML checker](https://github.com/validator/validator) to validate the HTML and XHTML.
+- [jq](https://stedolan.github.io/jq/), to filter false-positives from the Nu HTML checker.
 
-See the `Makefile` for details.
+Build instructions
+------------------
 
-Design
-------
+- To just build the HTML: `make hugo`
+- To build the polygot formatted HTML and XHTML: `make hugo xhtmlize`
+- To lint and validate: `make hugo xhtmlize lint-local`
+- To build everything and compress: `make hugo xhtmlize compress`
+- To deploy the clearnet site and corresponding Tor hidden service: `make deploy-prod deploy-onion`
 
-I made the site as inclusive as possible. Tested using multiple screen readers (Orca, TalkBack, Apple VoiceOver, Windows Narrator, NVDA), and I regularly test with the following browsers/engines. Testing in a browser does not imply any sort of endorsement; I just want to meet people where they're at.
+`make` can parallelize only a little, since many jobs depend on previous jobs.
 
-Desktop:
+Compatibility
+-------------
+
+I made the site as inclusive as possible. Tested using multiple screen readers (Orca, TalkBack, Apple VoiceOver, Windows Narrator, NVDA), and I regularly test with the following browsers/engines. Testing in a browser does not imply any sort of endorsement; I just want to meet people where they're at and I want my site to be as robust as possible.
+
+For all the listed options, I test "reading mode" whenever it's available. Most of my testing happens on Linux since that's my main OS, but I sometimes test on a Windows machine.
+
+The main compatibility issue is a lack of support for `<details>`; the only non-mainstream engine to support it is Servo. The site is still perfectly usable without support for `<details>`; users will just be annoyed by pre-expanded toggle buttons that don't do anything.
+
+### Desktop
+
+Mainstream engines:
 
 - Gecko: Nightly, Stable, ESR, and sometimes Pale Moon
 - the Tor Browser
 - Blink: latest Chromium snapshot, stable, and QtWebEngine
-- WebKit: Webkit2GTK3
+- WebKit, via Webkit2GTK3
+
+Non-mainstream engines:
+
 - NetSurf
-- SerenityOS Browser
-- Very old WebKit via rekonq (Qt4 QtWebKit)
-- KHTML
+- [The SerenityOS Browser](https://github.com/SerenityOS/serenity/tree/master/Userland/Libraries/LibWeb) (does not yet support ECDSA-based certs, so I test on my Tildeverse mirror). Known issue: SVG avatar doesn't render unless I view it in a new tab.
+- Very old WebKit via rekonq (Qt4 QtWebKit).
+- KHTML (KF5), via Konqueror.
 - Servo
-- Trident, if I have access to a Windows machine that has Edge with "IE Mode".
+- Tkhtml, via Hv3 (no TLS 1.2, so I use a terminating proxy or localhost version)
 
-For all the above options, I test "reading mode" whenever it's available.
+Tested on a provisional basis, when I have access to a Windows machine:
 
-Mobile:
+- [Winternight Classic](https://github.com/ClassicNick/Crescent-Vine).
+- IE 11.
+- Even older WebKit, via Safari 5.1.7. Requires a TLS terminating proxy.
+- Ancient Gecko, via NetScape Navigator. Requires a TLS terminating proxy.
+
+Desktop screen readers tested:
+
+- Orca
+- NVDA
+- Windows Narrator
+- TODO: borrow someone's mac and test macOS VoiceOver.
+
+### Mobile
 
 - Android: Blink, Gecko, Tor Browser
-- iOS WebKit: latest stable version, iOS 12, iOS 10 on an iPhone 5. Also test Reader Mode.
-- TODO: try a KaiOS device.
+- iOS WebKit: latest stable version, iOS 12, iOS 10 on an iPhone 5. Also tested Reader Mode.
+- TODO: try a KaiOS device and Samsung Internet's dark mode.
 
-Smart watches:
+The site should work well even on viewports that are under 240 CSS pixels wide.
+
+Mobile screen readers:
+
+- TalkBack
+- VoiceOver
+- TODO: test KaiOS Readout
+
+### Smart watches
 
 - Borrowed an Apple Watch to try the embedded browser.
-- TODO: test on a Tizen or Wear OS device's browser.
+- TODO: test on a Tizen or Wear OS device's browser (Samsung Internet is a popular choice)
 
-Everything works well in all the above browsers.
+## Accessibility
+
+To my knowledge, this site meets all applicable WCAG 2.2 AA requirements.
+
+This site meets all applicable WCAG 2.2 AAA requirements, with the following exceptions:
+
+- SC 1.4.8 Visual Presentation: long article body text for articles should have an average character count per line below 80 characters. Some lines may exceed this limit. Text outside of article bodies has a longer line width.
+- SC 2.4.9 Link Purpose (Link Only): I mostly follow this guideline, but there may be some exceptions. Link purpose in context is always clear, though.
+- SC 3.1.5 Reading Level: the required reading ability often exceeds the lower secondary education level
+- SC 3.1.6 Pronunciation: I do not yet provide pronunciation information.
+
+I have only tested WCAG compliance in mainstream browser engines (Blink, Gecko, WebKit).
+
+I also go further than WCAG in many aspects.
+
+- Rather than follow SC 2.5.5's requirement to achieve a minimum tap target size of 44 by 44 pixels, I follow Google's more strict guidelines. These guidelines mandate that targets are at least 48-by-48 pixels, with no overlap against any other targets in a 56-by-56 pixel range.
+- I ensure at least one such 56-by-56 pixel non-interactive region exists on the page, for users with hand tremors or or anyone who wants to tap the screen without clicking something.
+- I only set custom colors in response to the `prefers-color-scheme: dark` media query. These custom colors pass APCA contrast ratios, all being close to the ideal lightness contrast of 90. They are also autism- and overstimulation-friendly colors: yellow links are significantly de-saturated to reduce harshness.

assets/css/main.css

@@ -338,7 +338,7 @@ pre {
 /* center standalone images; same justification as
  * for centering the body contents. Also makes images easier to see
  * for people holding a device with one hand. */
-picture > img {
+div[itemprop="articleBody"] img {
 	display: block;
 	height: auto;
 	margin: auto;

content/_index.md

@@ -8,7 +8,9 @@ description: "Seirdy's Home: personal website and blog for Rohan Kumar, A.K.A. S
 sitemap:
     - ChangeFreq: weekly
     - Priority: 0.9
+stype: "WebSite"
 ---
+<meta itemprop="url" content="https://seirdy.one" />
 <div itemprop="author" itemscope="" itemtype="https://schema.org/Person" itemid="https://seirdy.one/#seirdy" class="p-author author h-card vcard" id="seirdy">
 
 Seirdy’s Home

content/search.md

@@ -0,0 +1,7 @@
+---
+outputs:
+    - html
+title: Search
+description: "Search seirdy.one."
+layout: "search"
+---

dynamic/README.txt

@@ -0,0 +1 @@
+Files in this directory represent dynamic pages, containing raw templates to be populated on the server side

dynamic/search-results.html

@@ -0,0 +1,28 @@
+<p>
+{{ .TotalResults }} results
+</p>
+<ol>
+{{- range .Results }}
+	<li>
+		<a href="{{ .URL }}">
+			<h2>
+				{{ if .Title -}}
+					{{- .Title }}
+				{{ else -}}
+					{{- .URL }}
+				{{- end }}
+			</h2>
+		</a>
+		<p>{{ printf "%.200s" .Desc }}</p>
+		<p>
+		{{ $isMatch := false }}
+		{{ range .Frag }}
+		{{ if $isMatch }}<strong>{{ end -}}
+		{{ printf . }}
+		{{- if $isMatch }}</strong>{{ end }}
+		{{ $isMatch = (not $isMatch) }}
+		{{ end }}
+		</p>
+	</li>
+{{- end }}
+</ol>

layouts/_default/baseof.html

@@ -1,9 +1,13 @@
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" lang="{{- default "" .Site.LanguageCode }}" xml:lang="{{- default "" .Site.LanguageCode }}" prefix="og: https://ogp.me/ns# article: https://ogp.me/ns/article# cc: http://creativecommons.org/ns#">
 {{ partial "head.html" . -}}
-<body itemscope="" itemtype="https://schema.org/WebPage">
+{{- $stype := "WebPage" -}}
+{{- with .Params.stype -}}
+	{{- $stype = . -}}
+{{- end -}}
+<body itemscope="" itemtype="https://schema.org/{{ $stype }}">
 {{ partial "header.html" . -}}
 {{- block "main" . }}{{- end -}}
-{{ partialCached "footer.html" . }}
+{{ partial "footer.html" . }}
 </body>
 </html>

layouts/_default/search.html

@@ -0,0 +1,12 @@
+{{ define "main" -}}
+{{- $canonicalRelPermalink := .RelPermalink | replaceRE "^/~seirdy/" "/" }}
+<main >
+	<h1>Search</h1>
+	<p role="note">This page is an unfinished work-in-progress.</p>
+	{{ partial "search.html" . }}
+	<hr />
+	<div itemprop="mainEntity" itemscope="" itemtype="https://schema.org/SearchResultsPage" itemid="{{ .Site.Params.CanonicalBaseURL }}{{ $canonicalRelPermalink }}">
+	{{ readFile "/dynamic/search-results.html" | safeHTML }}
+	</div>
+</main>
+{{ end }}

layouts/partials/footer.html

@@ -3,7 +3,9 @@
 	<p>
 	Copyright <time itemprop="copyrightYear" datetime="{{now.Year}}">{{now.Year}}</time> {{ partial "indieweb-author.html" -}}
 	</p>
-	{{ partial "search.html" }}
+	{{ if ne .Title "Search" -}}
+	{{- partial "search.html" -}}
+	{{- end -}}
 	<nav aria-label="site info">
 		<ul>
 			<li itemprop="license" itemscope="" itemtype="https://schema.org/CreativeWork">

layouts/partials/search.html

@@ -1,12 +1,12 @@
 <form
 	itemprop="potentialAction" itemscope="" itemtype="https://schema.org/SearchAction"
-	action="https://searchmysite.net/search/" method="get" role="search">
-	<label for="search">
-		Search this site (powered by <a rel="nofollow" href="https://searchmysite.net/">Search My Site</a>):
+	action="https://seirdy.one/search/" method="get" role="search">
+	<label for="search" itemscope="" itemprop="target" itemtype="https://schema.org/EntryPoint">
+		Search this site (powered by the <a rel="nofollow" href="https://searchmysite.net/">Search My Site</a> API):
+		<meta itemprop="urlTemplate" content="http://seirdy.one/search?q={q}" />
 	</label>
 	<div><!--We need the extra divs to serve as pseudo-table-cells.-->
-		<input id="search" type="search" itemprop="query"
-			value="domain:seirdy.one " name="q" spellcheck="true" />
+		<input itemprop="query-input" id="search" type="search" required="" name="q" />
 		<div><input type="submit" value="search" /></div>
 	</div>
 </form>

layouts/shortcodes/indieweb-icon.html

@@ -1,9 +1,14 @@
 {{ $favicon := resources.Get "/favicon.png" -}}
 {{- $favicon_base64 := $favicon.Content | base64Encode -}}
+{{- $favicon_bigpng := resources.Get "/favicon192.png" | resources.Fingerprint "md5" -}}
 {{- $favicon_svg := resources.Get "/favicon.svg" | resources.Fingerprint "md5" -}}
+{{- if in site.BaseURL ".onion" -}}
 <img itemprop="image" class="u-photo photo" width="16" height="16" alt=""
-{{ if in site.BaseURL ".onion" -}}
-	src="data:image/png;base64,{{ $favicon_base64 }}"
+	src="data:image/png;base64,{{ $favicon_base64 }}" />
 {{- else -}}
-	src="{{ $favicon_svg.RelPermalink }}"
-{{- end }} />
+<picture itemprop="image">
+	<source srcset="{{ $favicon_svg.RelPermalink }}" type="image/svg+xml" />
+	<img class="u-photo photo" width="16" height="16" alt=""
+		src="{{ $favicon_bigpng.RelPermalink }}" />
+</picture>
+{{- end -}}

linter-configs/vnu_filter.jq

@@ -13,6 +13,20 @@
 				.message == "Attribute “media” not allowed on element “meta” at this point."
 				and (.extract | test(" name=\"theme-color\""))
 			)
+			or
+			( # Allow raw templates
+				(.url | test ("/search/index."))
+				and (
+					(.message == "Text not allowed in element “ol” in this context.")
+					or
+					(.message == "Bad value “{{ .URL }}” for attribute “href” on element “a”: Illegal character in path segment: “{” is not allowed.")
+				)
+				and (
+					(.extract | test("{{"))
+					or
+					(.extract | test("}}"))
+				)
+			)
 		) | not
 	)
 ) | del(..|select(. == [])) | del(..|select(. == {})) | select(. != null)

scripts/xhtmlize-single-file.sh

@@ -34,7 +34,7 @@ sed 7d "$html_file" | xmllint --format --encode UTF-8 --noent - | sd '^\t' '' >"
 		| sd '<pre(?: tabindex="0")?>\n\t*<code ' '<pre tabindex="0"><code ' \
 		| sd '(?:\n)?</code>\n(?:[\t\s]*)?</pre>' '</code></pre>' \
 		| sd '</span>.span itemprop="familyName"' '</span> <span itemprop="familyName"' \
-		| sd '(<img itemprop="image" class="u-photo photo"[^>]*/>)<span' '$1 <span' \
+		| sd '</picture><span itemprop="name" class="p-name fn n">' '</picture> <span itemprop="name" class="p-name fn n">' \
 		| sd '([a-z])<(data|time)' '$1 <$2'
 } >>"$xhtml_file"