From eae747a8a48b8816432ce5dde0f27ac9244fe890 Mon Sep 17 00:00:00 2001
From: boldtrn <boldtrn@gmail.com>
Date: Tue, 26 Sep 2023 09:47:51 +0200
Subject: [PATCH] fix: incorrect polyline decoding Don't split static image
 encoded path on pipe or comma

Signed-off-by: boldtrn <boldtrn@gmail.com>
---
 src/serve_rendered.js | 18 +++---------------
 test/static.js        | 12 ++++++++++++
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/serve_rendered.js b/src/serve_rendered.js
index ee0a5b7..27fbeae 100644
--- a/src/serve_rendered.js
+++ b/src/serve_rendered.js
@@ -162,21 +162,9 @@ const extractPathsFromQuery = (query, transformer) => {
         providedPath.includes('enc:') &&
         PATH_PATTERN.test(decodeURIComponent(providedPath))
       ) {
-        const encodedPaths = providedPath.split(',');
-        for (const path of encodedPaths) {
-          const line = path
-            .split('|')
-            .filter(
-              (x) =>
-                !x.startsWith('fill') &&
-                !x.startsWith('stroke') &&
-                !x.startsWith('width'),
-            )
-            .join('')
-            .replace('enc:', '');
-          const coords = polyline.decode(line).map(([lat, lng]) => [lng, lat]);
-          paths.push(coords);
-        }
+        const encodedPaths = providedPath.replace('enc:', '');
+        const coords = polyline.decode(encodedPaths).map(([lat, lng]) => [lng, lat]);
+        paths.push(coords);
       } else {
         // Iterate through paths, parse and validate them
         const currentPath = [];
diff --git a/test/static.js b/test/static.js
index 547d673..885543c 100644
--- a/test/static.js
+++ b/test/static.js
@@ -171,6 +171,18 @@ describe('Static endpoints', function () {
           '?path=-10,-10|-20,-20',
         );
       });
+
+      describe('encoded path', function () {
+        testStatic(
+            prefix,
+            'auto/20x20',
+            'png',
+            200,
+            2,
+            /image\/png/,
+            '?path='+decodeURIComponent('enc:{{biGwvyGoUi@s_A|{@'),
+        );
+      });
     });
 
     describe('invalid requests return 4xx', function () {