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koa-oembed KoaJs Slack

npm install koa-oembed --save

Koa middleware for creating oEmbed endpoints.

oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.

Usage

API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.

importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})

API

Creating middleware

importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})

ctx.oembed

ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}

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oEmbed middleware for koa

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MIT license
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Custom properties

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5 stars

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4 watching

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
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oEmbed middleware for koa
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
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oEmbed middleware for koa
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
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oEmbed middleware for koa
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
About
oEmbed middleware for koa
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
About
oEmbed middleware for koa
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Readme
MIT license
Activity
Custom properties
Stars
5 stars
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4 watching
Forks
1 fork
Report repository
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Used by
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
About
oEmbed middleware for koa
Resources
Readme
MIT license
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Custom properties
Stars
5 stars
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4 watching
Forks
1 fork
Report repository
Releases
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Used by
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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koa-oembed KoaJs Slack
npm install koa-oembed --save
Koa middleware for creating oEmbed endpoints.
oEmbed is a format for allowing an embedded representation of a URL on third party sites. The simple API allows a website to display embedded content (such as photos or videos) when a user posts a link to that resource, without having to parse the resource directly.
Usage
API endpoints and URL schemes are provided in pairs, such that one instance of the middleware serves exactly one URL scheme. You can read more about this in the specification.
importoembedfrom'koa-oembed'importRouterfrom'koa-router'// or any other router libraryconstrouter=newRouter();// This creates the api-url pair http://example.com/oembed -> http://example.com/photos/*router.get('/oembed',oembed('http://example.com/photos/*'),function(ctx){// We handle oembed requests here through utilities in ctx.oembedconstphotoId=ctx.oembed.match[1]// regex match of first wildcard. // match[0] is the fully matched url; 1, 2, 3... store wildcard matches// Some generic validationif(!checkIfExists(photoId)){ctx.throw(404)}ctx.oembed.photo({// As per spec, these three props are requiredurl: `http://example.com/photo/${photoId}.jpg`,width: 300,height: 200,// any additional data below is optionalprovider_url: 'http://example.com'})})
API
Creating middleware
importoembedfrom'koa-oembed'constmiddleware=oembed(urlScheme,/* URL scheme. May include wildcards. */options: {/* Optional options object */format: 'json'|'xml',/* Indicates a fixed api format. */asterisksRequired: boolean,/* Indicates that matched * patterns must contain at least one character. Defaults to false. */caseSensitive: boolean/* Indicates that the search should be case sensitive. Defaults to false. */})
ctx.oembed
ctx.oembed={match: [],/* Regex match object. */format: 'json'|'xml',/* Format of response. */photo({ url, width, height, ...data}),/* Send photo response. */video({ html, width, height, ...data}),/* Send video response. */link({ ...data}),/* Send link response with any data. */rich({ html, width, height, ...data})/* Send rich content response. */}
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oEmbed middleware for koa
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