af_redditimgur: add crude dupe checking based on content links

diff --git a/plugins/af_redditimgur/init.php b/plugins/af_redditimgur/init.php
index 023d7c18164068d2c5cb5ea60bed3a4b14f0b994..59b97d6e527b2706f33743daf545de83440183d0 100644 (file)
--- a/plugins/af_redditimgur/init.php
+++ b/plugins/af_redditimgur/init.php
@@ -23,6 +23,9 @@ class Af_RedditImgur extends Plugin {
                $enable_readability = $this->host->get($this, "enable_readability");
                $enable_readability_checked = $enable_readability ? "checked" : "";
 
+               $enable_dupecheck = $this->host->get($this, "enable_dupecheck");
+               $enable_dupecheck_checked = $enable_dupecheck ? "checked" : "";
+               
                print "<form dojoType=\"dijit.form.Form\">";
 
                print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
@@ -53,6 +56,13 @@ class Af_RedditImgur extends Plugin {
 
                print "<label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
 
+               print "<br/>";
+               
+               print "<input dojoType=\"dijit.form.CheckBox\" id=\"enable_dupecheck\"
+                       $enable_dupecheck_checked name=\"enable_dupecheck\">&nbsp;";
+
+               print "<label for=\"enable_dupecheck\">" . __("Mark duplicates as read using content links") . "</label>";
+               
                print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".
                        __("Save")."</button>";
 
@@ -63,8 +73,10 @@ class Af_RedditImgur extends Plugin {
 
        function save() {
                $enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]) == "true";
-
+               $enable_dupecheck = checkbox_to_sql_bool($_POST["enable_dupecheck"]) == "true";
+               
                $this->host->set($this, "enable_readability", $enable_readability);
+               $this->host->set($this, "enable_dupecheck", $enable_dupecheck);
 
                echo __("Configuration saved");
        }
@@ -228,15 +240,42 @@ class Af_RedditImgur extends Plugin {
                        @$doc->loadHTML($article["content"]);
                        $xpath = new DOMXPath($doc);
 
-                       $found = $this->inline_stuff($article, $doc, $xpath);
+                       $content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
+
+                       if ($content_link && $this->host->get($this, "enable_dupecheck")) {
+
+                               if (DB_TYPE == "pgsql") {
+                                       $date_qpart = "date_entered < NOW() - INTERVAL '1 day' ";
+                               } else {
+                                       $date_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY) ";
+                               }
+
+                               $content_href = db_escape_string($content_link->getAttribute("href"));
+                               $owner_uid = $article["owner_uid"];
+                               $guid = db_escape_string($article["guid_hashed"]);
+
+                               $result = db_query("SELECT id FROM ttrss_entries, ttrss_user_entries
+                                       WHERE
+                                               content LIKE '%$content_href%' AND
+                                               $date_qpart AND
+                                               ref_id = id AND
+                                               owner_uid = $owner_uid
+                                               AND guid != '$guid'
+                                       LIMIT 1");
+
+                               if (db_num_rows($result) != 0) {
+                                       $found = true;
+                                       $article["force_catchup"] = true;
+                               }
+                       }
+
+                       if (!$found) $found = $this->inline_stuff($article, $doc, $xpath);
 
                        if (function_exists("curl_init") && !$found && $this->host->get($this, "enable_readability") &&
                                mb_strlen(strip_tags($article["content"])) <= 150) {
 
                                if (!class_exists("Readability")) require_once(dirname(dirname(__DIR__)). "/lib/readability/Readability.php");
 
-                               $content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
-
                                if ($content_link &&
                                        strpos($content_link->getAttribute("href"), "twitter.com") === FALSE &&
                                        strpos($content_link->getAttribute("href"), "youtube.com") === FALSE &&