New version

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 120
+tab_width = 4
+trim_trailing_whitespace = true
+
+[*.js]
+indent_size = 2
+
+[*.scss]
+indent_size = 2
+
+[views/**.php]
+indent_size = 2

.gitignore

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-.gitignore
-iframely/node_modules
-.idea
+### Node template
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
 
-# Repository inside plugin directory
-.babelrc
-iframely.php
-readme.txt
-src*
-ui*
-.DS_Store
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# dev/temp
+iframely-original.php
+assets/js/iframely.js
+
+# local
+.idea
+release

README.md

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+# Iframely WordPress plugin
+
+## Installation
+    npm install
+
+### Gutenberg build
+    npm run build
+
+### Gutenberg watch
+    npm run start
+
+### Update POT file
+    gulp clean
+    wp i18n make-pot . lang/iframely.pot  --headers="{\"Project-Id-Version\": \"Iframely\", \"Report-Msgid-Bugs-To\": \"https://wordpress.org/support/plugin/iframely/\", \"Last-Translator\": \"Iframely.com\", \"Language-Team\": \"Iframely.com\"}"
+    wp i18n make-json lang --no-purge
+
+## Release
+
+Copy plugin files to `release` folder with proper SVN structure:
+
+    gulp release
+
+Alternatively, add specific version to `tags` directory:
+
+    gulp release --tag=1.0
+
+Clean `release` folder:
+
+    gulp clean

app/Activation.php

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+<?php
+
+namespace Iframely;
+
+use Iframely\Embed\Cache;
+
+class Activation
+{
+    public static function run(): void
+    {
+        if (Plugin::isActivated() || Options::isAllSet()) {
+            return;
+        }
+
+        Options::setBuiltinsReplace(true);
+        Options::setPreviewsEnhance(true);
+        Options::setCacheRefresh(true);
+        Options::setCacheTtl(Cache::getDefaultTtlValue());
+
+        Options::setAllSet(true);
+    }
+}

app/Embed.php

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+<?php
+
+namespace Iframely;
+
+use Iframely\Embed\Amp;
+use Iframely\Embed\Cache;
+use Iframely\Embed\Feed;
+use Iframely\Embed\Gutenberg;
+use Iframely\Embed\Oembed;
+use Iframely\Embed\Shortcode;
+
+class Embed
+{
+    public const IFRAMELY_ENDPOINT_URL = 'https://iframe.ly/api/oembed';
+
+    public static function run(): void
+    {
+        Oembed::run();
+        Feed::run();
+        Amp::run();
+        Gutenberg::run();
+        Cache::run();
+        Shortcode::run();
+    }
+
+    public static function createApiLink(): string
+    {
+        $key = Options::getApiKey();
+        $query = Options::getApiParams();
+        $origin = preg_replace('#^https?://#i', '', get_bloginfo('url'));
+
+        $link = add_query_arg([
+            'origin' => $origin,
+            'api_key' => $key,
+        ], self::IFRAMELY_ENDPOINT_URL);
+
+        if (!empty($query)) {
+            parse_str($query, $params);
+            $link = add_query_arg($params, $link);
+        }
+
+        return $link;
+    }
+}

app/Embed/Amp.php

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+<?php
+
+namespace Iframely\Embed;
+
+use Iframely\Options;
+use Iframely\Utils;
+
+class Amp
+{
+    public static function run(): void
+    {
+        # Make compatible with Automatic AMP-WP plugin: https://github.com/Automattic/amp-wp
+        add_filter('oembed_fetch_url', [self::class, 'maybe_add_iframe_amp'], 10, 3);
+        add_filter('embed_oembed_html', [self::class, 'iframely_filter_oembed_result'], 10, 3);
+        add_filter('amp_content_embed_handlers', [self::class, 'maybe_disable_default_embed_handlers'], 10, 2);
+    }
+
+    public static function is_iframely_amp($args): bool
+    {
+        return
+            (is_array($args) && array_key_exists('iframely', $args) && $args['iframely'] === 'amp')
+            || (is_string($args) && Utils::stringContains($args, 'iframely=amp'))
+            || (function_exists('is_amp_endpoint') && is_amp_endpoint());
+    }
+
+    public static function maybe_add_iframe_amp($provider, $args, $url)
+    {
+        if (self::is_iframely_amp($args) && Utils::stringContains($provider, 'iframe.ly')) {
+            $provider = add_query_arg('amp', '1', $provider);
+        }
+        return $provider;
+    }
+
+    public static function iframely_filter_oembed_result($html, $url, $args)
+    {
+        if (Utils::stringContains($html, '<amp-iframe')) {  // covers "amp-iframely"
+            // Avoid corrupted amp-iframe overflow div as a result of wpautop
+            remove_filter('the_content', 'wpautop');
+            // Restore wpautop if it was disabled
+            add_filter('the_content', [self::class, 'iframely_autop_on_amp'], 1000);
+        }
+
+        return $html;
+    }
+
+    public static function iframely_autop_on_amp($content)
+    {
+        // Logic is taken from wpautop itself re <pre>
+        if (Utils::stringContains($content, '<amp-iframe')) {
+            $chunks = explode('</amp-iframe>', $content);
+            $content = '';
+
+            foreach ($chunks as $chunk) {
+                $start = strpos($chunk, '<amp-iframe');
+                // Malformed html?
+                if ($start === false) {
+                    $content .= $chunk;
+                    continue;
+                }
+
+                $iframe = substr($chunk, $start) . '</amp-iframe>';
+                $p = wpautop(substr($chunk, 0, $start));
+
+                $content .= $p . $iframe;
+            }
+        } else {
+            $content = wpautop($content);
+        }
+
+        return $content;
+    }
+
+    public static function maybe_disable_default_embed_handlers($embed_handler_classes)
+    {
+        //return ! get_site_option( 'iframely_only_shortcode' ) ? array() : $embed_handler_classes;
+        if (!class_exists('Jetpack_AMP_Support') && Options::isBuiltinsReplaced()) {
+            return [];
+        }
+        return $embed_handler_classes;
+    }
+}
+
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