add paste filter

src/routes/r/view.mjs

@@ -4,10 +4,11 @@ import highlight from "highlight.js";
 import db from "../../lib/sql";
 
 const queries = {
-  all:    "select p.id, p.uuid, p.stamp, p.desc, p.paste, p.hidden, l.name as language, r.uuid as reply from `pastes` as p "
+  all: filter => "select p.id, p.uuid, p.stamp, p.desc, p.paste, p.hidden, l.name as language, r.uuid as reply from `pastes` as p "
           + "left join `languages` as l on l.id = p.lang "
           + "left join `pastes` as r on r.id = p.reply "
           + "where p.hidden = 0 "
+          + (filter || "")
           + "order by p.id desc limit 5",
   single: "select p.id, p.uuid, p.stamp, p.desc, p.paste, l.name as language, r.uuid as reply from `pastes` as p "
           + "left join `languages` as l on l.id = p.lang "
@@ -17,7 +18,7 @@ const queries = {
 
 export default express.Router()
   .get("/", (req, res) => {
-    db.exec(queries.all)
+    db.exec(queries.all())
       .then(rows => {
         res.render("view", { pastes: rows.map(r => {
           const paste = new Buffer(r.paste, "base64").toString("ascii");
@@ -48,4 +49,35 @@ export default express.Router()
           rows: paste.split(/\r?\n/).length
         }});
       }).catch(err => res.send("paste not found"));
-  });
+  })
+  .get("/:filter(lang|desc)/:fvalue", (req, res) => {
+    const condition = {
+      desc: "and p.desc like ? ",
+      lang: "and l.name = ? "
+    };
+    let value = req.params.fvalue;
+    if(req.params.filter == "desc")
+      value = "%" + value + "%";
+    db.exec(queries.all(condition[req.params.filter]), value)
+      .then(rows => {
+        res.render("view", { pastes: rows.map(r => {
+          const paste = new Buffer(r.paste, "base64").toString("ascii");
+          return {
+            uuid: r.uuid,
+            paste: highlight.highlightAuto(paste).value,
+            language: r.language,
+            stamp: r.stamp,
+            desc: r.reply ? `Reply to <a href="/${r.reply}/" class="descID">/${r.reply}/</a>` : r.desc || "No desciption.",
+            rows: paste.split(/\r?\n/).length
+          };
+        })});
+      }).catch(err => res.render("view"));
+  })
+  .post("/", (req, res) => {
+    const desc = /^"(.*)"$/;
+    let match;
+    if(match = desc.exec(req.body.filter))
+      res.redirect("/v/desc/" + encodeURIComponent(match[1]));
+    else
+      res.redirect("/v/lang/" + encodeURIComponent(req.body.filter));
+  });