From cc63cb8a0c4aaf16b19d497796b54084c203b40e Mon Sep 17 00:00:00 2001
From: Florian Festi <florian@festi.info>
Date: Mon, 4 Mar 2024 21:40:16 +0100
Subject: [PATCH] Use tmpfile for passing data to pstoedit

Otherwise this fails on the web instance as itz is pretty old. This
patch is not needed with newer versions of pstoedit and should be
removed as soon as the web instance is on the new server.
---
 boxes/formats.py | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/boxes/formats.py b/boxes/formats.py
index 6329d641..4b4ef19d 100644
--- a/boxes/formats.py
+++ b/boxes/formats.py
@@ -18,6 +18,7 @@
 import shutil
 import subprocess
 import io
+import tempfile
 
 from boxes.drawing import SVGSurface, PSSurface, LBRN2Surface, Context
 
@@ -34,9 +35,9 @@ class Formats:
         "svg_Ponoko": None,
         "ps": None,
         "lbrn2": None,
-        "dxf": "{pstoedit} -flat 0.1 -f dxf:-mm",
-        "gcode": "{pstoedit} -f gcode",
-        "plt": "{pstoedit} -f hpgl",
+        "dxf": "{pstoedit} -flat 0.1 -f dxf:-mm {input} -",
+        "gcode": "{pstoedit} -f gcode {input} -",
+        "plt": "{pstoedit} -f hpgl {input} -",
         # "ai": "{pstoedit} -f ps2ai",
         "pdf": "{ps2pdf} -dEPSCrop - -",
     }
@@ -82,11 +83,20 @@ def getSurface(self, fmt):
     def convert(self, data, fmt):
 
         if fmt not in self._BASE_FORMATS:
+            tmpfile = ""
+            if fmt in ("dxf", "gcode", "plt"):
+                fd, tmpfile = tempfile.mkstemp()
+                os.write(fd, data.getvalue())
+                input_ = None
+            else:
+                input_ = data.getvalue()
+
             cmd = self.formats[fmt].format(
                 pstoedit=self.pstoedit,
-                ps2pdf=self.ps2pdf).split()
+                ps2pdf=self.ps2pdf,
+                input=tmpfile).split()
 
-            result = subprocess.run(cmd, input=data.getvalue(), capture_output=True)
+            result = subprocess.run(cmd, input=input_, capture_output=True)
             if result.returncode:
                 # XXX show stderr output
                 raise ValueError("Conversion failed. pstoedit returned %i\n\n %s" % (result.returncode, result.stderr))