Better fingerprinting (#35)

* Better fingerprinting for server tech
* Many more features in FeatureExtractor
* Blog specialization
* SiteType table

code/common/db/build.gradle

@@ -2,6 +2,7 @@ plugins {
     id 'java'
     id "io.freefair.lombok" version "5.3.3.3"
     id 'jvm-test-suite'
+
 }
 
 java {
@@ -32,8 +33,14 @@ dependencies {
     testImplementation libs.bundles.slf4j.test
     testImplementation libs.bundles.junit
     testImplementation libs.mockito
+
+
+    testImplementation platform('org.testcontainers:testcontainers-bom:1.17.4')
+    testImplementation 'org.testcontainers:mariadb:1.17.4'
+    testImplementation 'org.testcontainers:junit-jupiter:1.17.4'
 }
 
+
 test {
     maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
     maxHeapSize = "8G"
@@ -47,4 +54,3 @@ task fastTests(type: Test) {
         excludeTags "slow"
     }
 }
-

code/common/db/src/main/java/nu/marginalia/db/DomainTypes.java

@@ -0,0 +1,179 @@
+package nu.marginalia.db;
+
+import com.zaxxer.hikari.HikariDataSource;
+import nu.marginalia.model.EdgeDomain;
+import nu.marginalia.model.id.EdgeIdList;
+import org.slf4j.LoggerFactory;
+import org.slf4j.Logger;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+/** A list of domains that are known to be of a certain type */
+@Singleton
+public class DomainTypes {
+
+    public enum Type {
+        BLOG,
+        TEST
+    };
+
+    private final Logger logger = LoggerFactory.getLogger(DomainTypes.class);
+
+    private final HikariDataSource dataSource;
+
+    @Inject
+    public DomainTypes(HikariDataSource dataSource) {
+        this.dataSource = dataSource;
+    }
+
+    /** Get all domains of a certain type, including domains that are not in the EC_DOMAIN table */
+    public List<String> getAllDomainsByType(Type type) {
+        List<String> ret = new ArrayList<>();
+
+        try (var conn = dataSource.getConnection();
+             var stmt = conn.prepareStatement("""
+                                SELECT DOMAIN_NAME
+                                FROM DOMAIN_SELECTION INNER JOIN DOMAIN_SELECTION_TYPE ON DOMAIN_TYPE_ID = DOMAIN_SELECTION_TYPE.ID
+                                WHERE DOMAIN_SELECTION_TYPE.NAME = ?
+                                """))
+        {
+            stmt.setString(1, type.name());
+            var rs = stmt.executeQuery();
+            while (rs.next()) {
+                ret.add(rs.getString(1));
+            }
+        }
+        catch (SQLException ex) {
+            throw new RuntimeException(ex);
+        }
+
+        return ret;
+    }
+
+    /** Retrieve the EdgeId of all domains of a certain type,
+     * ignoring entries that are not in the EC_DOMAIN table */
+    public EdgeIdList<EdgeDomain> getKnownDomainsByType(Type type) {
+        EdgeIdList<EdgeDomain> ret = new EdgeIdList<>();
+
+        try (var conn = dataSource.getConnection();
+             var stmt = conn.prepareStatement("""
+                            SELECT EC_DOMAIN.ID
+                            FROM DOMAIN_SELECTION
+                            INNER JOIN DOMAIN_SELECTION_TYPE ON DOMAIN_TYPE_ID = DOMAIN_SELECTION_TYPE.ID
+                            INNER JOIN EC_DOMAIN ON DOMAIN_SELECTION.DOMAIN_NAME = EC_DOMAIN.DOMAIN_NAME
+                            WHERE DOMAIN_SELECTION_TYPE.NAME = ?
+                            """))
+        {
+            stmt.setString(1, type.name());
+            var rs = stmt.executeQuery();
+            while (rs.next()) {
+                ret.add(rs.getInt(1));
+            }
+        }
+        catch (SQLException ex) {
+            throw new RuntimeException(ex);
+        }
+
+        return ret;
+    }
+
+    /** Reload the list of domains of a certain type from the source */
+    public void reloadDomainsList(Type type) throws IOException, SQLException {
+        try (var conn = dataSource.getConnection();
+             var stmt = conn.prepareStatement("""
+                            SELECT SOURCE, ID FROM DOMAIN_SELECTION_TYPE WHERE NAME = ?
+                            """);
+             var deleteStatement = conn.prepareStatement("""
+                            DELETE FROM DOMAIN_SELECTION WHERE DOMAIN_TYPE_ID = ?
+                            """);
+             var insertStatement = conn.prepareStatement("""
+                            INSERT IGNORE INTO DOMAIN_SELECTION (DOMAIN_NAME, DOMAIN_TYPE_ID) VALUES (?, ?)
+                            """)
+             )
+        {
+            stmt.setString(1, type.name());
+            var rsp = stmt.executeQuery();
+
+            if (!rsp.next()) {
+                throw new RuntimeException("No such domain selection type: " + type);
+            }
+
+            var source = rsp.getString(1);
+            int typeId = rsp.getInt(2);
+
+            List<String> downloadDomains = downloadDomainsList(source);
+
+            try {
+                conn.setAutoCommit(false);
+                deleteStatement.setInt(1, typeId);
+                deleteStatement.executeUpdate();
+
+                for (String domain : downloadDomains) {
+                    insertStatement.setString(1, domain);
+                    insertStatement.setInt(2, typeId);
+                    insertStatement.executeUpdate();
+                    // Could use batch insert here, but this executes infrequently, so it's not worth the hassle
+                }
+
+                conn.commit();
+            }
+            catch (SQLException ex) {
+                conn.rollback();
+                throw ex;
+            }
+            finally {
+                conn.setAutoCommit(true);
+            }
+        }
+    }
+
+    private List<String> downloadDomainsList(String source) throws IOException {
+        List<String> ret = new ArrayList<>();
+
+        logger.info("Downloading domain list from {}", source);
+
+        try (var br = new BufferedReader(new InputStreamReader(new URL(source).openStream()))) {
+            String line;
+
+            while ((line = br.readLine()) != null) {
+                line = cleanDomainListLine(line);
+
+
+                if (isValidDomainListEntry(line))
+                    ret.add(line);
+            }
+        }
+
+        logger.info("-- found {}", ret.size());
+
+
+        return ret;
+    }
+
+    private String cleanDomainListLine(String line) {
+        line = line.trim();
+
+        int hashIdx = line.indexOf('#');
+        if (hashIdx >= 0)
+            line = line.substring(0, hashIdx).trim();
+
+        return line;
+    }
+
+    private boolean isValidDomainListEntry(String line) {
+        if (line.isBlank())
+            return false;
+        if (!line.matches("[a-z0-9\\-.]+"))
+            return false;
+
+        return true;
+    }
+}

code/common/db/src/main/resources/sql/current/10-domain-type.sql

@@ -0,0 +1,19 @@
+CREATE TABLE IF NOT EXISTS DOMAIN_SELECTION_TYPE (
+    ID INT PRIMARY KEY AUTO_INCREMENT,
+    NAME VARCHAR(255) UNIQUE,
+    SOURCE VARCHAR(255) NOT NULL
+)
+CHARACTER SET utf8mb4
+COLLATE utf8mb4_bin;
+
+CREATE TABLE DOMAIN_SELECTION (
+    DOMAIN_NAME VARCHAR(255) PRIMARY KEY,
+    DOMAIN_TYPE_ID INT,
+    FOREIGN KEY (DOMAIN_TYPE_ID) REFERENCES DOMAIN_SELECTION_TYPE(ID) ON DELETE CASCADE
+)
+CHARACTER SET utf8mb4
+COLLATE utf8mb4_unicode_ci;
+
+INSERT IGNORE INTO DOMAIN_SELECTION_TYPE(NAME, SOURCE)
+VALUES ('BLOG', 'https://raw.githubusercontent.com/MarginaliaSearch/submit-site-to-marginalia-search/master/blogs.txt'),
+       ('TEST', 'https://downloads.marginalia.nu/domain-list-test.txt');

code/common/db/src/test/java/nu/marginalia/db/DomainTypesTest.java

@@ -0,0 +1,63 @@
+package nu.marginalia.db;
+
+import com.google.common.collect.Sets;
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.containers.MariaDBContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.HashSet;
+import java.util.Set;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@Testcontainers
+public class DomainTypesTest {
+    @Container
+    static MariaDBContainer<?> mariaDBContainer = new MariaDBContainer<>("mariadb")
+            .withDatabaseName("WMSA_prod")
+            .withUsername("wmsa")
+            .withPassword("wmsa")
+            .withInitScript("sql/current/10-domain-type.sql")
+            .withNetworkAliases("mariadb");
+
+    static HikariDataSource dataSource;
+    static DomainTypes domainTypes;
+
+    @BeforeAll
+    public static void setup() {
+        HikariConfig config = new HikariConfig();
+        config.setJdbcUrl(mariaDBContainer.getJdbcUrl());
+        config.setUsername("wmsa");
+        config.setPassword("wmsa");
+
+        dataSource = new HikariDataSource(config);
+
+        domainTypes = new DomainTypes(dataSource);
+    }
+
+    @AfterAll
+    public static void teardown() {
+        dataSource.close();
+    }
+
+    @Test
+    public void reloadDomainsList() throws SQLException, IOException {
+        domainTypes.reloadDomainsList(DomainTypes.Type.TEST);
+
+        var downloadedDomains = new HashSet<>(domainTypes.getAllDomainsByType(DomainTypes.Type.TEST));
+
+        var expectedDomains = Set.of("www.marginalia.nu", "search.marginalia.nu",
+                                     "encyclopedia.marginalia.nu", "memex.marginalia.nu");
+
+        assertEquals(4, downloadedDomains.size());
+        assertEquals(Set.of(), Sets.symmetricDifference(expectedDomains, downloadedDomains));
+    }
+
+}

code/common/model/src/main/java/nu/marginalia/model/crawl/HtmlFeature.java

@@ -6,7 +6,10 @@ public enum HtmlFeature {
     MEDIA( "special:media"),
     JS("special:scripts"),
     AFFILIATE_LINK( "special:affiliate"),
-    TRACKING("special:tracking"),
+    TRACKING_INNOCENT("special:tracking"),
+    TRACKING_EVIL("special:tracking2"),
+
+    VIEWPORT("special:viewport"),
 
     COOKIES("special:cookies"),
     CATEGORY_FOOD("category:food"),
@@ -15,8 +18,43 @@ public enum HtmlFeature {
 
     GA_SPAM("special:gaspam"),
 
-    UNKNOWN("special:uncategorized")
-    ;
+    /** For fingerprinting and ranking */
+    OPENGRAPH("special:opengraph"),
+    OPENGRAPH_IMAGE("special:opengraph:image"),
+    TWITTERCARD("special:twittercard"),
+    TWITTERCARD_IMAGE("special:twittercard:image"),
+    FONTAWSESOME("special:fontawesome"),
+    GOOGLEFONTS("special:googlefonts"),
+    DNS_PREFETCH("special:dnsprefetch"),
+    PRELOAD("special:preload"),
+    PRECONNECT("special:preconnect"),
+    PINGBACK("special:pingback"),
+    FEED("special:feed"),
+    WEBMENTION("special:webmention"),
+    INDIEAUTH("special:indieauth"),
+    ME_TAG("special:metag"),
+    NEXT_TAG("special:nexttag"),
+    AMPHTML("special:amphtml"),
+    JSON_LD("special:jsonld"),
+    ORIGIN_TRIAL("special:origintrial"),
+    PROFILE_GMPG("special:profile-gpmg"),
+    QUANTCAST("special:quantcast"),
+    COOKIELAW("special:cookielaw"),
+    DIDOMI("special:didomi"),
+    PARDOT("special:pardot"),
+    ONESIGNAL("special:onesignal"),
+    DATE_TAG("special:date_tag"),
+    NOSCRIPT_TAG("special:noscript_tag"),
+
+    ROBOTS_INDEX("robots:index"),
+    ROBOTS_FOLLOW("robots:follow"),
+    ROBOTS_NOODP("robots:noodp"),
+    ROBOTS_NOYDIR("robots:noydir"),
+    DOFOLLOW_LINK("special:dofollow"),
+    APPLE_TOUCH_ICON("special:appleicon"),
+
+    UNKNOWN("special:uncategorized");
+
 
     private final String keyword;
 

code/libraries/language-processing/src/main/java/nu/marginalia/language/model/DocumentLanguageData.java

@@ -17,6 +17,15 @@ public class DocumentLanguageData {
     public final DocumentSentence[] titleSentences;
     public final TObjectIntHashMap<String> wordCount;
 
+    /** for test convenience */
+    public static DocumentLanguageData empty() {
+        return new DocumentLanguageData(
+                new DocumentSentence[0],
+                new DocumentSentence[0],
+                new TObjectIntHashMap<>()
+        );
+    }
+
     public int totalNumWords() {
         int ret = 0;
         for (int i = 0; i < sentences.length; i++) {

code/processes/converting-process/build.gradle

@@ -29,6 +29,7 @@ dependencies {
     implementation project(':code:api:index-api')
 
     implementation project(':code:common:model')
+    implementation project(':code:common:db')
     implementation project(':code:common:service')
     implementation project(':code:common:config')
     implementation project(':code:common:service-discovery')

code/processes/converting-process/src/main/java/nu/marginalia/converting/ConverterMain.java

@@ -5,6 +5,7 @@ import com.google.inject.Guice;
 import com.google.inject.Inject;
 import com.google.inject.Injector;
 import nu.marginalia.process.log.WorkLog;
+import nu.marginalia.service.module.DatabaseModule;
 import plan.CrawlPlanLoader;
 import plan.CrawlPlan;
 import nu.marginalia.converting.compiler.InstructionsCompiler;
@@ -33,7 +34,8 @@ public class ConverterMain {
         var plan = new CrawlPlanLoader().load(Path.of(args[0]));
 
         Injector injector = Guice.createInjector(
-                new ConverterModule(plan)
+                new ConverterModule(plan),
+                new DatabaseModule()
         );
 
         injector.getInstance(ConverterMain.class);

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/ConverterDomainTypes.java

@@ -0,0 +1,53 @@
+package nu.marginalia.converting.processor;
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import nu.marginalia.db.DomainTypes;
+import nu.marginalia.model.EdgeDomain;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
+/** Converter-side wrapper for of common:db's DomainTypes,
+ * which is a list of domains of a known type (e.g. blog)
+ */
+@Singleton
+public class ConverterDomainTypes {
+    private final Logger logger = LoggerFactory.getLogger(ConverterDomainTypes.class);
+    private final Map<EdgeDomain, DomainType> domainTypes = new HashMap<>();
+
+    private enum DomainType {
+        BLOG
+    }
+
+    @Inject
+    public ConverterDomainTypes(DomainTypes types) throws SQLException {
+        var allBlogs = types.getAllDomainsByType(DomainTypes.Type.BLOG);
+
+        if (allBlogs.isEmpty()) {
+            logger.info("No domains of type BLOG found in database, downloading list");
+            try {
+                types.reloadDomainsList(DomainTypes.Type.BLOG);
+                allBlogs = types.getAllDomainsByType(DomainTypes.Type.BLOG);
+            }
+            catch (IOException ex) {
+                logger.error("Failed to download domains list", ex);
+            }
+        }
+
+        for (var item : allBlogs) {
+            domainTypes.put(new EdgeDomain(item), DomainType.BLOG);
+        }
+
+        logger.info("Loaded {} domain types", domainTypes.size());
+
+    }
+
+    public boolean isBlog(EdgeDomain domain) {
+        return domainTypes.get(domain) == DomainType.BLOG;
+    }
+}

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/logic/DocumentGeneratorExtractor.java

@@ -12,13 +12,13 @@ import java.util.List;
 public class DocumentGeneratorExtractor {
     private static final String defaultValue = "unset";
 
-    public DocumentGenerator generatorCleaned(Document doc) {
+    public DocumentGenerator detectGenerator(Document doc, String responseHeaders) {
 
         var tags = doc.select("meta[name=generator]");
 
         if (tags.size() == 0) {
             // Some sites have a comment in the head instead of a meta tag
-            return fingerprintByComments(doc);
+            return fingerprintServerTech(doc, responseHeaders);
         }
         if (tags.size() > 1) {
             return DocumentGenerator.multiple();
@@ -29,11 +29,14 @@ public class DocumentGeneratorExtractor {
         generator = removePrefixOrSuffix(generator);
 
         if (generator.isBlank())
-            return DocumentGenerator.unset();
+            return fingerprintServerTech(doc, responseHeaders);
+
+        if (generator.startsWith("AMP by WP"))
+            return DocumentGenerator.of("wordpress", "wordpress-amp");
 
         String[] parts = StringUtils.split(generator, " ,:!");
         if (parts.length == 0)
-            return DocumentGenerator.unset();
+            return fingerprintServerTech(doc, responseHeaders);
 
         int slashIdx = parts[0].indexOf('/');
         if (slashIdx >= 0) {
@@ -42,7 +45,7 @@ public class DocumentGeneratorExtractor {
         }
 
         if (parts.length > 3) {
-            return DocumentGenerator.unset(); // if it's still very long after trim(), it's probably a custom hand written message
+            return fingerprintServerTech(doc, responseHeaders); // if it's still very long after trim(), it's probably a custom hand written message
         }
 
         switch (parts[0]) {
@@ -73,7 +76,7 @@ public class DocumentGeneratorExtractor {
     }
 
     // Fallback logic when there is no meta tag
-    private DocumentGenerator fingerprintByComments(Document doc) {
+    private DocumentGenerator fingerprintServerTech(Document doc, String responseHeaders) {
 
         for (var comment : doc.getElementsByTag("head").comments()) {
             String data = comment.getData();
@@ -81,22 +84,43 @@ public class DocumentGeneratorExtractor {
             if (data.contains("Generated by javadoc")) {
                 return DocumentGenerator.of("javadoc");
             }
-
+            if (data.contains("Squarespace")) {
+                return DocumentGenerator.of("squarespace");
+            }
             if (data.contains("phpBB")) {
                 return DocumentGenerator.of("phpbb");
             }
         }
 
         for (var tag : doc.head().getElementsByTag("script")) {
-            if (tag.html().contains("window.lemmyConfig")) {
-                return DocumentGenerator.of("lemmy");
-            }
-            if (tag.html().contains("URL_DOMAIN = 'wikidot.com'")) {
-                return DocumentGenerator.of("wikidot");
-            }
-            if (tag.attr("src").contains("wp-content")) {
+            String scriptSrc = tag.attr("src");
+
+            if (scriptSrc.contains("wp-content") || scriptSrc.contains("wp-includes")) {
                 return DocumentGenerator.of("wordpress", "wordpress-sneaky");
             }
+            if (scriptSrc.contains("squarespace.com")) {
+                return DocumentGenerator.of("squarespace");
+            }
+            if (scriptSrc.contains("cdn.cloversites.com")) {
+                return DocumentGenerator.of("cloversites");
+            }
+            if (scriptSrc.contains("bndzgl.com")) {
+                return DocumentGenerator.of("bndzgl");
+            }
+            if (scriptSrc.contains("editmysite.com")) {
+                return DocumentGenerator.of("editmysite");
+            }
+            if (scriptSrc.contains("website-editor.net")) {
+                return DocumentGenerator.of("website-editor.net");
+            }
+            String scriptHtml = tag.html();
+            if (scriptHtml.contains("window.lemmyConfig")) {
+                return DocumentGenerator.of("lemmy");
+            }
+            if (scriptHtml.contains("URL_DOMAIN = 'wikidot.com'")) {
+                return DocumentGenerator.of("wikidot");
+            }
+
         }
 
         for (var tag : doc.head().getElementsByTag("link")) {
@@ -109,6 +133,10 @@ public class DocumentGeneratorExtractor {
             return DocumentGenerator.of("flarum");
         }
 
+        if (doc.getElementById("tracpowered") != null) {
+            return DocumentGenerator.of("trac");
+        }
+
         if (doc.getElementById("_xfClientLoadTime") != null) {
             return DocumentGenerator.of("xenforo");
         }
@@ -117,6 +145,48 @@ public class DocumentGeneratorExtractor {
             return DocumentGenerator.of("invision");
         }
 
+        if (doc.getElementById("___gatsby") != null) {
+            return DocumentGenerator.of("gatsby");
+        }
+
+        String[] headers = responseHeaders.toLowerCase().split("\n+");
+        for (var header : headers) {
+            if (header.contains("x-drupal-cache")) {
+                return DocumentGenerator.of("drupal");
+            }
+            if (header.contains("x-powered-by: asp.net")) {
+                return DocumentGenerator.of("asp.net");
+            }
+            if (header.contains("x-powered-by: php")) {
+                return DocumentGenerator.of("php");
+            }
+            if (header.contains("x-powered-by: wp engine")) {
+                return DocumentGenerator.of("wordpress", "wp-engine", "wordpress-sneaky");
+            }
+            if (header.contains("x-powered-by: statamic")) {
+                return DocumentGenerator.of("laravel", "statamic");
+            }
+        }
+
+        // These should be all the way down as they are the most generic
+        for (var header : headers) {
+            if (header.contains("server: mastodon")) {
+                return DocumentGenerator.of("mastodon");
+            }
+            if (header.contains("server: gunicorn")) {
+                return DocumentGenerator.of("gunicorn");
+            }
+            if (header.contains("server: nginx")) {
+                return DocumentGenerator.of("nginx");
+            }
+            if (header.contains("server: apache")) {
+                return DocumentGenerator.of("apache");
+            }
+            if (header.contains("server: cowboy")) {
+                return DocumentGenerator.of("cowboy"); // erlang, really?!
+            }
+        }
+
         return DocumentGenerator.unset();
     }
 
@@ -138,6 +208,11 @@ public class DocumentGeneratorExtractor {
             generator = generator.substring(0, dashIdx);
         }
 
+        int parenIdx = generator.indexOf('('); // Some strings have values like 'Drupal 9 (https://www.drupal.org)'
+        if (parenIdx >= 0) {
+            generator = generator.substring(0, parenIdx);
+        }
+
         if (!StringUtils.isAsciiPrintable(generator))
             return "";
 
@@ -170,11 +245,18 @@ public class DocumentGeneratorExtractor {
             final GeneratorType type = switch (parts[0]) {
                 case "joomla", "wordpress", "drupal", "plone", "postnuke", "divi", "freeway", "unicity",
                      "modx", "sitemagic", "agility", "edlio", "blogger", "slider", "slider_revolution", "gravcms",
-                     "typo3", "dotnetnuke", "cms", "coremedia", "dspace"
+                     "typo3", "dotnetnuke", "cms", "coremedia", "dspace", "laravel", "trac", "bunnypress", "astro",
+                     "ghost", "publii"
                      -> GeneratorType.CMS;
                 case "wix.com", "one.com", "wpbakery", "claris", "wordpress.com", "hubspot",
                      "visual_composer", "mobirise", "everweb", "rapidweaver", "shorthand",
-                     "visual", "nitropack",
+                     "visual", "nitropack", "squarespace", "editmysite", "websiteeditor.net",
+
+                     "svbtle.com", "write.as", "montaigne.io", // blogging platforms, maybe should be in another category?
+
+                     "cloversites", // clover is a church-oriented website builder, found that kinda neat
+                     "bndzgl", // band websites ..?
+
                     /* these are not SAAS but close enough */
                     "redux", "bootply"
                      -> GeneratorType.SAAS;
@@ -185,7 +267,8 @@ public class DocumentGeneratorExtractor {
                      "pdf2htmlex", "nvu", "mozilla", "golive", "tenfingers", "publisher",
                      "allaire", "neooffice"
                      -> GeneratorType.BOOMER_STATIC;
-                case "hugo", "jekyll", "hakyll", "gatsby", "react", "gridsome"
+                case "hugo", "jekyll", "hakyll", "nikola", "zola", "olivetti", "pelican", "sushy", "hexo", "eleventy",
+                     "gridsome", "vuepress", "docusaurus", "docpad", "techou", "quarto", "soupault"
                      -> GeneratorType.ZOOMER_STATIC;
                 case "vi", "vim", "emacs", "orgmode", "hand", "vscode", "atom", "bbedit", "nano",
                      "notepad.exe", "gedit", "me",
@@ -198,9 +281,9 @@ public class DocumentGeneratorExtractor {
                      -> GeneratorType.FORUM;
                 case "mediawiki", "dokuwiki", "wikidot", "sharepoint"
                      -> GeneratorType.WIKI;
-                case "pandoc", "mkdocs", "doxygen", "javadoc"
+                case "pandoc", "mkdocs", "doxygen", "javadoc", "asciidoc", "jsdoc"
                      -> GeneratorType.DOCS;
-                case "woocommerce", "shopfactory", "prestashop", "magento", "shopify", "sitedirect", "seomatic"
+                case "woocommerce", "shopfactory", "prestashop", "magento", "shopify", "sitedirect", "seomatic", "osclass"
                      -> GeneratorType.ECOMMERCE_AND_SPAM;
                 default
                      -> GeneratorType.UNKNOWN;
@@ -216,7 +299,7 @@ public class DocumentGeneratorExtractor {
         public static DocumentGenerator multiple() {
             // It's *generally* WordPress or the like that injects multiple generator tags
 
-            return new DocumentGenerator(GeneratorType.CMS, List.of(defaultValue));
+            return new DocumentGenerator(GeneratorType.CMS, List.of("wordpress", "wp-best-guess"));
         }
     }
 

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/logic/DocumentValuator.java

@@ -19,14 +19,13 @@ public class DocumentValuator {
                              int textLength) throws DisqualifiedException {
         double scriptPenalty = getScriptPenalty(parsedDocument);
 
-        int textBodyLength = textLength;
         int rawLength = crawledDocument.documentBody.length();
 
-        if (textBodyLength == 0) {
+        if (textLength == 0) {
             throw new DisqualifiedException(DisqualifiedException.DisqualificationReason.LENGTH);
         }
 
-        return Math.log(textBodyLength / (double) (1+rawLength))*htmlStandard.scale
+        return Math.log(textLength / (double) (1+rawLength))*htmlStandard.scale
                 + htmlStandard.offset
                 - scriptPenalty;
     }

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/logic/FeatureExtractor.java

@@ -21,25 +21,29 @@ import java.util.Set;
 @Singleton
 public class FeatureExtractor {
 
-    private static final List<String> trackers = List.of("adform.net",
+    private static final List<String> innocentTrackers = List.of(
+            "twitter.com",
+            "bing.com",
+            "msn.com");
+    private static final List<String> shittyTrackers = List.of("adform.net",
             "connect.facebook",
+            "facebook.com/tr",
             "googletagmanager.com",
             "googlesyndication.com",
-            "google.com",
-            "twitter.com",
             "smartadserver.com",
             "doubleclick.com",
             "2mdn.com",
             "dmtry.com",
-            "bing.com",
-            "msn.com",
             "amazon-adsystem.com",
             "alexametrics.com",
             "rubiconproject.com",
             "chango.com",
             "d5nxst8fruw4z.cloudfront.net",
             "d31qbv1cthcecs.cloudfront.net",
-            "linkedin.com");
+            "linkedin.com",
+            "perfectaudience.com",
+            "marketingautomation.services",
+            "usefathom");
 
     private final AdblockSimulator adblockSimulator;
     private final RecipeDetector recipeDetector;
@@ -71,21 +75,119 @@ public class FeatureExtractor {
         }
 
         for (var scriptTag : scriptTags) {
-            if (isJavascriptTag(scriptTag)) {
+            final String type = scriptTag.attr("type");
+
+            if ("application/ld+json".equalsIgnoreCase(type)) {
+                features.add(HtmlFeature.JSON_LD);
+            }
+            else {
                 features.add(HtmlFeature.JS);
             }
         }
 
+        if (!doc.head().getElementsByTag("viewport").isEmpty()) {
+            features.add(HtmlFeature.VIEWPORT);
+        }
+        for (var atag : doc.body().getElementsByTag("a")) {
+            var rel = atag.attr("rel");
+            if (rel.equals("dofollow")) {
+                features.add(HtmlFeature.DOFOLLOW_LINK);
+            }
+        }
+
+        if (!doc.getElementsByTag("date").isEmpty()) {
+            features.add(HtmlFeature.DATE_TAG);
+        }
+        if (!doc.getElementsByTag("noscript").isEmpty()) {
+            features.add(HtmlFeature.NOSCRIPT_TAG);
+        }
+
+
+        for (var link : doc.head().getElementsByTag("link")) {
+
             // 500 IQ web developers use <link> error or load handlers
             // sneakily load JS without explicit script tags
-        for (var link : doc.head().getElementsByTag("link")) {
-            if (link.hasAttr("onerror")) {
+            if (link.hasAttr("onerror"))
                 features.add(HtmlFeature.JS);
-                break;
+            if (link.hasAttr("onload"))
+                features.add(HtmlFeature.JS);
+
+            if (link.hasAttr("pingback")) {
+                features.add(HtmlFeature.PINGBACK);
             }
-            if (link.hasAttr("onload")) {
-                features.add(HtmlFeature.JS);
-                break;
+
+
+            var href = link.attr("href");
+
+            if (href.contains("indieauth"))
+                features.add(HtmlFeature.INDIEAUTH);
+
+            var rel = link.attr("rel");
+
+            if (rel.equals("webmention"))
+                features.add(HtmlFeature.WEBMENTION);
+
+            if (rel.equals("me"))
+                features.add(HtmlFeature.ME_TAG);
+
+            if (rel.equals("next"))
+                features.add(HtmlFeature.NEXT_TAG);
+
+            if (rel.equals("alternate") && link.hasAttr("type"))
+                features.add(HtmlFeature.FEED);
+
+            if (rel.equals("dns-prefetch"))
+                features.add(HtmlFeature.DNS_PREFETCH);
+
+            if (rel.equals("preload"))
+                features.add(HtmlFeature.PRELOAD);
+
+            if (rel.equals("preconnect"))
+                features.add(HtmlFeature.PRECONNECT);
+
+            if (rel.equals("amphtml"))
+                features.add(HtmlFeature.AMPHTML);
+
+            if (rel.equals("apple-touch-icon"))
+                features.add(HtmlFeature.APPLE_TOUCH_ICON);
+
+        }
+
+        for (var meta : doc.head().getElementsByTag("meta")) {
+            // <meta name="robots" content="index,follow">
+            if (meta.attr("name").equals("robots")) {
+                var content = meta.attr("content");
+                if (!content.contains("noindex") && content.contains("index")) {
+                    features.add(HtmlFeature.ROBOTS_INDEX);
+                }
+                if (!content.contains("nofollow") && content.contains("follow")) {
+                    features.add(HtmlFeature.ROBOTS_FOLLOW);
+                }
+                if (content.contains("noodp")) {
+                    features.add(HtmlFeature.ROBOTS_NOODP);
+                }
+                if (content.contains("noydir")) {
+                    features.add(HtmlFeature.ROBOTS_NOYDIR);
+                }
+            }
+
+            if (meta.attr("profile").contains("gmpg")) {
+                features.add(HtmlFeature.PROFILE_GMPG);
+            }
+            if (meta.attr("property").equals("og:description")) {
+                features.add(HtmlFeature.OPENGRAPH);
+            }
+            if (meta.attr("property").equals("og:image")) {
+                features.add(HtmlFeature.OPENGRAPH_IMAGE);
+            }
+            if (meta.attr("name").equals("twitter:description")) {
+                features.add(HtmlFeature.TWITTERCARD);
+            }
+            if (meta.attr("name").equals("twitter:image")) {
+                features.add(HtmlFeature.TWITTERCARD_IMAGE);
+            }
+            if (meta.attr("http-equiv").equals("origin-trial")) {
+                features.add(HtmlFeature.ORIGIN_TRIAL);
             }
         }
 
@@ -100,14 +202,74 @@ public class FeatureExtractor {
         }
 
         for (var scriptTag : scriptTags) {
-            if (hasTrackingScript(scriptTag)) {
-                features.add(HtmlFeature.TRACKING);
-                break;
+            if (hasInvasiveTrackingScript(scriptTag)) {
+                features.add(HtmlFeature.TRACKING_INNOCENT);
+                features.add(HtmlFeature.TRACKING_EVIL);
+            }
+            else if (hasNaiveTrackingScript(scriptTag)) {
+                features.add(HtmlFeature.TRACKING_INNOCENT);
+            }
+
+            if (scriptTag.hasAttr("didomi/javascript")) {
+                features.add(HtmlFeature.DIDOMI);
+            }
+
+            String src = scriptTag.attr("src");
+            if (src.contains("OneSignalSDK")) {
+                features.add(HtmlFeature.ONESIGNAL);
+            }
+
+            String scriptText = scriptTag.html();
+
+            if (scriptText.contains("'pd.js'")) {
+                features.add(HtmlFeature.PARDOT);
+            }
+            if (scriptText.contains("https://cmp.quantcast.com")) {
+                features.add(HtmlFeature.QUANTCAST);
+            }
+            if (scriptText.contains("https://quantcast.mgr.consensu.org")) {
+                features.add(HtmlFeature.QUANTCAST);
+            }
+            if (scriptText.contains("https://cdn.cookielaw.org")) {
+                features.add(HtmlFeature.COOKIELAW);
+            }
+            if (scriptText.contains("_linkedin_data_partner_id")) {
+                features.add(HtmlFeature.TRACKING_EVIL);
+            }
+            if (scriptText.contains("window.OneSignal")) {
+                features.add(HtmlFeature.ONESIGNAL);
+            }
+            if (scriptText.contains("connect.facebook.net")) {
+                features.add(HtmlFeature.TRACKING_EVIL);
+            }
+            if (scriptText.contains("hotjar.com")) {
+                features.add(HtmlFeature.TRACKING_INNOCENT);
+            }
+        }
+
+        for (var noscript : doc.getElementsByTag("noscript")) {
+            for (var iframe : noscript.getElementsByTag("iframe")) {
+                if (hasInvasiveTrackingScript(iframe)) {
+                    features.add(HtmlFeature.TRACKING_INNOCENT);
+                    features.add(HtmlFeature.TRACKING_EVIL);
+                }
+                else if (hasNaiveTrackingScript(iframe)) {
+                    features.add(HtmlFeature.TRACKING_INNOCENT);
+                }
+            }
+            for (var img : noscript.getElementsByTag("img")) {
+                if (hasInvasiveTrackingScript(img)) {
+                    features.add(HtmlFeature.TRACKING_INNOCENT);
+                    features.add(HtmlFeature.TRACKING_EVIL);
+                }
+                else if (hasNaiveTrackingScript(img)) {
+                    features.add(HtmlFeature.TRACKING_INNOCENT);
+                }
             }
         }
 
         if (scriptTags.html().contains("google-analytics.com")) {
-            features.add(HtmlFeature.TRACKING);
+            features.add(HtmlFeature.TRACKING_INNOCENT);
         }
 
         for (var aTag : doc.getElementsByTag("a")) {
@@ -129,29 +291,32 @@ public class FeatureExtractor {
         return features;
     }
 
-    private boolean hasTrackingScript(Element scriptTag) {
-        return hasTrackingScript(scriptTag.attr("src"));
+    private boolean hasInvasiveTrackingScript(Element scriptTag) {
+        return hasInvasiveTrackingScript(scriptTag.attr("src"));
     }
+    private boolean hasNaiveTrackingScript(Element scriptTag) {
+        return hasNaiveTrackingScript(scriptTag.attr("src"));
+    }
+    private boolean hasInvasiveTrackingScript(String src) {
 
-    private boolean hasTrackingScript(String scriptText) {
-
-        for (var tracker : trackers) {
-            if (scriptText.contains(tracker)) {
+        for (var tracker : shittyTrackers) {
+            if (src.contains(tracker)) {
                 return true;
             }
         }
         return false;
     }
 
-    private boolean isJavascriptTag(Element scriptTag) {
-        final String type = scriptTag.attr("type");
+    private boolean hasNaiveTrackingScript(String src) {
 
-        if ("application/ld+json".equalsIgnoreCase(type)) {
+        for (var tracker : innocentTrackers) {
+            if (src.contains(tracker)) {
+                return true;
+            }
+        }
         return false;
     }
 
-        return true;
-    }
 
     boolean isAmazonAffiliateLink(Element aTag) {
         final String href = aTag.attr("href").toLowerCase();

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/plugin/HtmlDocumentProcessorPlugin.java

@@ -111,9 +111,9 @@ public class HtmlDocumentProcessorPlugin extends AbstractDocumentProcessorPlugin
 
         final EdgeUrl url = new EdgeUrl(crawledDocument.url);
 
-        final var generatorParts = documentGeneratorExtractor.generatorCleaned(doc);
+        final var generatorParts = documentGeneratorExtractor.detectGenerator(doc, crawledDocument.headers);
 
-        final var specialization = htmlProcessorSpecializations.select(generatorParts);
+        final var specialization = htmlProcessorSpecializations.select(generatorParts, url);
 
         if (!specialization.shouldIndex(url)) {
             throw new DisqualifiedException(DisqualificationReason.IRRELEVANT);
@@ -167,7 +167,9 @@ public class HtmlDocumentProcessorPlugin extends AbstractDocumentProcessorPlugin
                 .addGenerator(generatorParts.keywords())
                 .build();
 
+
         words.addAllSyntheticTerms(tagWords);
+        specialization.amendWords(doc, words);
 
         getLinks(url, ret, doc, words);
 
@@ -216,8 +218,23 @@ public class HtmlDocumentProcessorPlugin extends AbstractDocumentProcessorPlugin
             return true;
         }
 
-        // Annoying wordpress crap
-        if (url.path.startsWith("/tag/") && url.path.endsWith("/")) {
+        // Annoying blog crap
+        if (url.path.contains("/tag/") && url.path.endsWith("/")) {
+            return true;
+        }
+        if (url.path.contains("/tags/") && url.path.endsWith("/")) {
+            return true;
+        }
+        if (url.path.contains("/category/") && url.path.endsWith("/")) {
+            return true;
+        }
+        if (url.path.contains("/categories/") && url.path.endsWith("/")) {
+            return true;
+        }
+        if (url.path.contains("/section/") && url.path.endsWith("/")) {
+            return true;
+        }
+        if (url.path.contains("/sections/") && url.path.endsWith("/")) {
             return true;
         }
         return false;

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/plugin/specialization/BlogSpecialization.java

@@ -0,0 +1,210 @@
+package nu.marginalia.converting.processor.plugin.specialization;
+
+import ca.rmen.porterstemmer.PorterStemmer;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import nu.marginalia.keyword.model.DocumentKeywordsBuilder;
+import nu.marginalia.model.EdgeUrl;
+import nu.marginalia.model.idx.WordFlags;
+import nu.marginalia.summary.SummaryExtractor;
+import org.apache.logging.log4j.util.Strings;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.nodes.Node;
+import org.jsoup.select.NodeFilter;
+import org.jsoup.select.NodeVisitor;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.function.Predicate;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+/** The blog specialization is used for blogs, and makes heavy assumptions about the nature of the document
+ * that aren't generally true, but if the categorization is correct, will yield much better results.
+ */
+@Singleton
+public class BlogSpecialization extends DefaultSpecialization {
+
+    @Inject
+    public BlogSpecialization(SummaryExtractor summaryExtractor) {
+        super(summaryExtractor);
+    }
+
+    @Override
+    public Document prune(Document original) {
+        var doc = original.clone();
+
+        // Remove all nav junk, comments and other stuff
+        doc.filter(new BlogPruningFilter());
+
+        // If there is an article tag, use that as the root
+        var articleTags = doc.getElementsByTag("article");
+        var firstArticle = articleTags.first();
+        if (firstArticle != null) {
+            var art = firstArticle.clone();
+
+            doc.body().empty();
+            doc.body().appendChild(art);
+
+            return doc;
+        }
+
+        // Use the default pruning as a fallback
+        return super.prune(doc);
+    }
+
+    @Override
+    public String getSummary(Document original, Set<String> importantWords) {
+        return super.getSummary(original, importantWords);
+    }
+
+    private final static List<String> badPathElements =
+            List.of("/tag/", "/tags/", "/tagged/", "/category/", "/categories/", "/section/", "/sections/", "/page/", "/author/");
+
+    private final static Predicate<String> dateIndexTest1 = Pattern.compile("^/(\\d{4}/(\\d{2}/){0,2}?)$").asMatchPredicate();
+    private final static Predicate<String> dateIndexTest2 = Pattern.compile("^/(\\d{2}/){1,2}$").asMatchPredicate();
+
+    @Override
+    public boolean shouldIndex(EdgeUrl url) {
+        String path = url.path;
+
+        // Don't index the root path for blogs, as it is usually an ephemeral list of all posts
+        if ("/".equals(path)) return false;
+
+        // Likewise for the blog's home page
+        if (path.endsWith("/blog/")) return false;
+        if (path.endsWith("/log/")) return false;
+        if (path.endsWith("/weblog/")) return false;
+        if (path.endsWith("/posts/")) return false;
+        if (path.endsWith("/articles/")) return false;
+
+        // Refuse paths that contain any of the bad path elements
+        for (String badPathElement : badPathElements) {
+            if (path.contains(badPathElement)) return false;
+        }
+
+        // We don't want chronological listings
+        if (dateIndexTest1.test(path)) return false;
+        if (dateIndexTest2.test(path)) return false;
+
+        return true;
+    }
+
+    private static PorterStemmer ps = new PorterStemmer();
+    public void amendWords(Document doc, DocumentKeywordsBuilder words) {
+        var tagExtractor = new BlogTagExtractor();
+        doc.traverse(tagExtractor);
+
+        var tags = tagExtractor.getTags();
+        if (!tags.isEmpty()) {
+            var stemmed = tags.stream().map(ps::stemWord).collect(Collectors.toSet());
+            words.setFlagOnMetadataForWords(WordFlags.Subjects, stemmed);
+
+            Set<String> specialTags = tags.stream().map(s -> "tag:" + s).collect(Collectors.toSet());
+            words.addAllSyntheticTerms(specialTags);
+        }
+
+    }
+
+    /** Removes all the non-content elements from the document,
+     * making strong blog-specific assumptions about the nature of
+     * the layout */
+    private static class BlogPruningFilter implements NodeFilter {
+        private static final List<String> badClassElements = Arrays.asList("comment", "reply", "sidebar", "header", "footer", "nav");
+        private static final List<String> badIdElements = Arrays.asList("comments", "header", "footer", "nav");
+
+        @Override
+        public FilterResult head(Node node, int depth) {
+            if (node instanceof Element el) {
+                String classes = el.attr("class");
+                String id = el.id();
+
+                for (String badClassElement : badClassElements) {
+                    if (classes.contains(badClassElement)) {
+                        return FilterResult.REMOVE;
+                    }
+                }
+                for (String badIdElement : badIdElements) {
+                    if (id.contains(badIdElement)) {
+                        return FilterResult.REMOVE;
+                    }
+                }
+            }
+            return FilterResult.CONTINUE;
+        }
+    }
+
+
+    // Extract tag keywords from the blog post
+    public static class BlogTagExtractor implements NodeVisitor {
+        private final Set<String> tags = new HashSet<>();
+        int lookForTags = -1;
+
+        public Set<String> getTags() {
+            Set<String> tagsClean = tags.stream().map(String::toLowerCase).map(this::cleanTag).filter(Strings::isNotBlank).collect(Collectors.toSet());
+
+            // If there are more than 5 tags, it's probably a global tag listing
+            // and not a post-specific tag listing
+            if (tagsClean.size() > 5)
+                return Set.of();
+
+            return tagsClean;
+        }
+
+        private final Pattern splitterPattern = Pattern.compile("\\s+");
+        private final Pattern noisePattern = Pattern.compile("[^a-zA-Z0-9]");
+
+        // This is hideously expensive but blog posts are relatively few and far between
+        private String cleanTag(String tag) {
+
+            String[] parts = splitterPattern.split(tag);
+
+            if (parts.length > 3)
+                return "";
+
+            for (int i = 0; i < parts.length; i++) {
+                if (parts[i].startsWith("#"))
+                    parts[i] = parts[i].substring(1);
+                else if (parts[i].startsWith("(") && parts[i].endsWith(")"))
+                    parts[i] = "";
+                else
+                    parts[i] = noisePattern.matcher(parts[i]).replaceAll("");
+
+                if (parts[i].equals("tags"))
+                    parts[i] = "";
+            }
+
+
+            return Arrays.stream(parts).filter(Strings::isNotBlank).collect(Collectors.joining("_"));
+        }
+
+        @Override
+        public void head(Node node, int depth) {
+
+            if (!(node instanceof Element el)) {
+                return;
+            }
+
+            if (lookForTags < 0) {
+                if (el.attr("class").contains("tags")) {
+                    lookForTags = depth;
+                }
+                if (el.tagName().equals("a")) {
+                  if (el.attr("class").contains("tag")
+                      || el.attr("href").startsWith("/tag/"))
+                     tags.add(el.text());
+                }
+            }
+            else if (el.tagName().equals("a")) {
+                    tags.add(el.text());
+            }
+
+        }
+        public void tail(Node node, int depth) {
+            if (depth <= lookForTags) { lookForTags = -1; }
+        }
+    }
+}

code/processes/converting-process/src/main/java/nu/marginalia/converting/processor/plugin/specialization/HtmlProcessorSpecializations.java

@@ -2,7 +2,9 @@ package nu.marginalia.converting.processor.plugin.specialization;
 
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
+import nu.marginalia.converting.processor.ConverterDomainTypes;
 import nu.marginalia.converting.processor.logic.DocumentGeneratorExtractor;
+import nu.marginalia.keyword.model.DocumentKeywordsBuilder;
 import nu.marginalia.model.EdgeUrl;
 import org.jsoup.nodes.Document;
 
@@ -10,27 +12,41 @@ import java.util.Set;
 
 @Singleton
 public class HtmlProcessorSpecializations {
+    private final ConverterDomainTypes domainTypes;
     private final LemmySpecialization lemmySpecialization;
     private final XenForoSpecialization xenforoSpecialization;
     private final PhpBBSpecialization phpBBSpecialization;
     private final JavadocSpecialization javadocSpecialization;
+    private final BlogSpecialization blogSpecialization;
     private final DefaultSpecialization defaultSpecialization;
 
     @Inject
-    public HtmlProcessorSpecializations(LemmySpecialization lemmySpecialization,
+    public HtmlProcessorSpecializations(ConverterDomainTypes domainTypes,
+                                        LemmySpecialization lemmySpecialization,
                                         XenForoSpecialization xenforoSpecialization,
                                         PhpBBSpecialization phpBBSpecialization,
                                         JavadocSpecialization javadocSpecialization,
+                                        BlogSpecialization blogSpecialization,
                                         DefaultSpecialization defaultSpecialization) {
+        this.domainTypes = domainTypes;
         this.lemmySpecialization = lemmySpecialization;
         this.xenforoSpecialization = xenforoSpecialization;
         this.phpBBSpecialization = phpBBSpecialization;
         this.javadocSpecialization = javadocSpecialization;
+        this.blogSpecialization = blogSpecialization;
         this.defaultSpecialization = defaultSpecialization;
     }
 
     /** Depending on the generator tag, we may want to use specialized logic for pruning and summarizing the document */
-    public HtmlProcessorSpecializationIf select(DocumentGeneratorExtractor.DocumentGenerator generator) {
+    public HtmlProcessorSpecializationIf select(
+            DocumentGeneratorExtractor.DocumentGenerator generator,
+            EdgeUrl url)
+    {
+
+        if (domainTypes.isBlog(url.domain)) {
+            return blogSpecialization;
+        }
+
         if (generator.keywords().contains("lemmy")) {
             return lemmySpecialization;
         }
@@ -58,5 +74,8 @@ public class HtmlProcessorSpecializations {
 
         default boolean shouldIndex(EdgeUrl url) { return true; }
         default double lengthModifier() { return 1.0; }
+
+        default void amendWords(Document doc, DocumentKeywordsBuilder words) {}
+
     }
 }

code/processes/converting-process/src/test/java/nu/marginalia/converting/ConvertingIntegrationTestModule.java

@@ -4,6 +4,8 @@ import com.google.inject.AbstractModule;
 import com.google.inject.name.Names;
 import nu.marginalia.LanguageModels;
 import nu.marginalia.WmsaHome;
+import nu.marginalia.converting.processor.ConverterDomainTypes;
+import org.mockito.Mockito;
 
 public class ConvertingIntegrationTestModule  extends AbstractModule {
     public void configure() {
@@ -13,5 +15,6 @@ public class ConvertingIntegrationTestModule  extends AbstractModule {
         bind(Integer.class).annotatedWith(Names.named("max-summary-length")).toInstance(255);
 
         bind(LanguageModels.class).toInstance(WmsaHome.getLanguageModels());
+        bind(ConverterDomainTypes.class).toInstance(Mockito.mock(ConverterDomainTypes.class));
     }
 }

code/processes/converting-process/src/test/java/nu/marginalia/converting/processor/plugin/specialization/BlogSpecializationTest.java

@@ -0,0 +1,17 @@
+package nu.marginalia.converting.processor.plugin.specialization;
+
+import nu.marginalia.model.EdgeUrl;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class BlogSpecializationTest {
+
+    @Test
+    void shouldIndex() throws Exception {
+        var spec = new BlogSpecialization(null);
+        assertFalse(spec.shouldIndex(new EdgeUrl("https://blog.marginalia.nu/2023/00/22/")));
+        assertFalse(spec.shouldIndex(new EdgeUrl("https://blog.marginalia.nu/2023/00/")));
+        assertFalse(spec.shouldIndex(new EdgeUrl("https://blog.marginalia.nu/00/22/")));
+    }
+}

code/processes/converting-process/src/test/java/nu/marginalia/converting/processor/plugin/specialization/JavadocSpecializationTest.java

@@ -34,7 +34,7 @@ class JavadocSpecializationTest {
 
     @Test
     void generatorExtraction() {
-        var gen = generatorExtractor.generatorCleaned(Jsoup.parse(thread));
+        var gen = generatorExtractor.detectGenerator(Jsoup.parse(thread), "");
 
         System.out.println(gen);
     }

code/processes/converting-process/src/test/java/nu/marginalia/converting/processor/plugin/specialization/LemmySpecializationTest.java

@@ -37,8 +37,8 @@ class LemmySpecializationTest {
 
     @Test
     void generatorExtraction() {
-        var generatorIndex = generatorExtractor.generatorCleaned(Jsoup.parse(lemmyIndexHtml));
-        var generatorPost = generatorExtractor.generatorCleaned(Jsoup.parse(lemmyPost));
+        var generatorIndex = generatorExtractor.detectGenerator(Jsoup.parse(lemmyIndexHtml), "");
+        var generatorPost = generatorExtractor.detectGenerator(Jsoup.parse(lemmyPost), "");
 
         System.out.println(generatorIndex);
         System.out.println(generatorPost);

code/processes/converting-process/src/test/java/nu/marginalia/converting/processor/plugin/specialization/XenForoSpecializationTest.java

@@ -34,7 +34,7 @@ class XenForoSpecializationTest {
 
     @Test
     void generatorExtraction() {
-        var gen = generatorExtractor.generatorCleaned(Jsoup.parse(thread));
+        var gen = generatorExtractor.detectGenerator(Jsoup.parse(thread), "");
 
         System.out.println(gen);
     }

code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/LinkFilterSelector.java

@@ -20,7 +20,8 @@ public class LinkFilterSelector {
         }
 
         if (isLemmy(head)) {
-            return url -> url.path.startsWith("/post/") || url.path.startsWith("/c/");
+            return url -> url.path.startsWith("/post/")
+               || (url.path.startsWith("/c/") && !url.path.contains("@"));
         }
         if (isDiscourse(head)) {
             return url -> url.path.startsWith("/t/") || url.path.contains("/latest");

code/services-core/index-service/src/main/java/nu/marginalia/index/svc/IndexQueryService.java

@@ -211,7 +211,7 @@ public class IndexQueryService {
         return switch (priority) {
             case BEST -> false;
             case GOOD -> resultCount > params.fetchSize / 4;
-            case FALLBACK -> resultCount > params.fetchSize / 256;
+            case FALLBACK -> resultCount > params.fetchSize / 8;
         };
     }
 

code/services-core/search-service/src/main/java/nu/marginalia/search/model/UrlDetails.java

@@ -121,7 +121,7 @@ public class UrlDetails {
 
         for (var problem :EnumSet.of(
                 HtmlFeature.JS,
-                HtmlFeature.TRACKING,
+                HtmlFeature.TRACKING_INNOCENT,
                 HtmlFeature.AFFILIATE_LINK,
                 HtmlFeature.COOKIES,
                 HtmlFeature.ADVERTISEMENT)) {
@@ -156,7 +156,7 @@ public class UrlDetails {
         return HtmlFeature.hasFeature(features, HtmlFeature.JS);
     }
     public boolean isTracking() {
-        return HtmlFeature.hasFeature(features, HtmlFeature.TRACKING);
+        return HtmlFeature.hasFeature(features, HtmlFeature.TRACKING_INNOCENT);
     }
     public boolean isAffiliate() {
         return HtmlFeature.hasFeature(features, HtmlFeature.AFFILIATE_LINK);

code/tools/experiment-runner/src/main/java/nu/marginalia/tools/experiments/DebugConverterExperiment.java

@@ -1,18 +1,12 @@
 package nu.marginalia.tools.experiments;
 
 import com.google.inject.Inject;
-import nu.marginalia.converting.model.GeneratorType;
-import nu.marginalia.converting.model.ProcessedDocument;
 import nu.marginalia.converting.processor.DomainProcessor;
-import nu.marginalia.converting.processor.logic.DocumentGeneratorExtractor;
+import nu.marginalia.converting.processor.plugin.specialization.BlogSpecialization;
 import nu.marginalia.crawling.model.CrawledDomain;
 import nu.marginalia.tools.Experiment;
-import org.apache.commons.lang3.StringUtils;
 import org.jsoup.Jsoup;
 
-import java.util.HashSet;
-import java.util.Set;
-
 public class DebugConverterExperiment extends Experiment {
 
 
@@ -24,56 +18,25 @@ public class DebugConverterExperiment extends Experiment {
 
     }
 
-    Set<String> seenGenerators = new HashSet<>();
-
     @Override
     public boolean process(CrawledDomain domain) {
 
         if (domain.doc == null) return true;
 
-        var dge = new DocumentGeneratorExtractor();
-
         for (var doc : domain.doc) {
             if (doc.documentBody == null) continue;
 
             var parsed = Jsoup.parse(doc.documentBody.decode());
-            parsed.getElementsByTag("head").comments()
-                    .stream().filter(c -> {
-                        String data = c.getData();
-                        if (data.contains("<script"))
-                            return false;
-                        if (data.contains("[if"))
-                            return false;
-                        if (data.contains("shim"))
-                            return false;
-                        return data.contains("Generated by") || data.contains("generated by")
-                                || data.contains("Powered by") || data.contains("powered by");
-                    }).forEach(System.out::println);
 
-            var generators = dge.generatorCleaned(parsed);
-            for (var g : generators.keywords()) {
-                if (seenGenerators.add(g)) {
-                    System.out.println(g + "->" + generators.type());
-                    if (generators.type() == GeneratorType.UNKNOWN) {
-                        System.out.println(parsed.select("meta[name=generator]")
-                                .attr("content"));
-                        System.out.println(doc.url);
-                    }
-                }
+            var tagExtractor = new BlogSpecialization.BlogTagExtractor();
+            parsed.traverse(tagExtractor);
+            var tags = tagExtractor.getTags();
+            if (!tags.isEmpty()) {
+                System.out.println(tags);
             }
 
         }
 
-//
-//        var ret = domainProcessor.process(domain);
-//
-//
-//        ret.documents.stream()
-//                .filter(ProcessedDocument::isProcessedFully)
-//                .peek(d -> System.out.println(d.url))
-//                .map(d -> d.details.metadata)
-//                .forEach(System.out::println);
-
         return true;
     }