From baa33a9a0837d84de2752fef006c1dd859f29d71 Mon Sep 17 00:00:00 2001
From: Anton Thomasson <antonthomasson@gmail.com>
Date: Thu, 1 Feb 2024 22:01:13 +0100
Subject: [PATCH] Ensure \r\n newlines in plaintext

---
 lib/ippprintjob.h | 26 +++++++++++++++++++++++++-
 lib/stringsplit.h | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100644 lib/stringsplit.h

diff --git a/lib/ippprintjob.h b/lib/ippprintjob.h
index 8f790e7..ebf3a67 100644
--- a/lib/ippprintjob.h
+++ b/lib/ippprintjob.h
@@ -9,6 +9,7 @@
 #include "setting.h"
 #include "error.h"
 #include "minimime.h"
+#include "stringsplit.h"
 
 class IppPrintJob
 {
@@ -86,11 +87,34 @@ class IppPrintJob
                             return Error();
                           };
 
+  ConvertFun FixupText = [](std::string inFileName, WriteFun writeFun, const IppPrintJob&, ProgressFun progressFun, bool)
+                         {
+                           InBinFile in(inFileName);
+                           if(!in)
+                           {
+                             return Error("Failed to open input");
+                           }
+                           Bytestream inBts(in);
+                           std::string allText = inBts.getString(inBts.size());
+
+                           List<std::string> lines;
+                           for(const std::string& rnline : split_string(allText, "\r\n"))
+                           {
+                             lines += split_string(rnline, "\n");
+                           }
+                           std::string outString = join_string(lines, "\r\n");
+
+                           writeFun((uint8_t*)outString.c_str(), outString.length());
+                           progressFun(1, 1);
+                           return Error();
+                         };
+
   std::map<ConvertKey, ConvertFun> Pipelines {{{MiniMime::PDF, MiniMime::PDF}, Pdf2Printable},
                                               {{MiniMime::PDF, MiniMime::Postscript}, Pdf2Printable},
                                               {{MiniMime::PDF, MiniMime::PWG}, Pdf2Printable},
                                               {{MiniMime::PDF, MiniMime::URF}, Pdf2Printable},
-                                              {{MiniMime::JPEG, MiniMime::JPEG}, Baselinify}};
+                                              {{MiniMime::JPEG, MiniMime::JPEG}, Baselinify},
+                                              {{"text/plain", "text/plain"}, FixupText}};
 
   IppAttrs opAttrs;
   IppAttrs jobAttrs;
diff --git a/lib/stringsplit.h b/lib/stringsplit.h
new file mode 100644
index 0000000..da9e408
--- /dev/null
+++ b/lib/stringsplit.h
@@ -0,0 +1,34 @@
+#ifndef STRINGSPLIT_H
+#define STRINGSPLIT_H
+
+#include <string>
+#include <list.h>
+
+inline List<std::string> split_string(const std::string& s, const std::string& tok)
+{
+  size_t pos = 0;
+  List<std::string> res;
+  while(pos <= s.length())
+  {
+    size_t found = std::min(s.length(), s.find(tok, pos));
+    res.push_back(s.substr(pos, (found - pos)));
+    pos = found + 1;
+  }
+  return res;
+}
+
+inline std::string join_string(List<std::string> list,  const std::string& sep)
+{
+  std::string res;
+  if(!list.empty())
+  {
+    res = list.takeFront();
+    for(const std::string& e : list)
+    {
+      res += sep + e;
+    }
+  }
+  return res;
+}
+
+#endif //STRINGSPLIT_H