From 4400ce84eeb204cdcb35950dd8fde094fc249051 Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Thu, 21 Dec 2023 17:14:28 -0500
Subject: Add "n:/pdf-name" to qpdf JSON for binary names (fixes #1072)

---
 libqpdf/QPDF_Name.cc | 10 +++++++++-
 libqpdf/QPDF_json.cc |  8 ++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

(limited to 'libqpdf')

diff --git a/libqpdf/QPDF_Name.cc b/libqpdf/QPDF_Name.cc
index 4597372e..5fde9c65 100644
--- a/libqpdf/QPDF_Name.cc
+++ b/libqpdf/QPDF_Name.cc
@@ -57,6 +57,14 @@ QPDF_Name::getJSON(int json_version)
     if (json_version == 1) {
         return JSON::makeString(normalizeName(this->name));
     } else {
-        return JSON::makeString(this->name);
+        bool has_8bit_chars;
+        bool is_valid_utf8;
+        bool is_utf16;
+        QUtil::analyze_encoding(this->name, has_8bit_chars, is_valid_utf8, is_utf16);
+        if (!has_8bit_chars || is_valid_utf8) {
+            return JSON::makeString(this->name);
+        } else {
+            return JSON::makeString("n:" + normalizeName(this->name));
+        }
     }
 }
diff --git a/libqpdf/QPDF_json.cc b/libqpdf/QPDF_json.cc
index f8fd689a..864e1a56 100644
--- a/libqpdf/QPDF_json.cc
+++ b/libqpdf/QPDF_json.cc
@@ -144,6 +144,12 @@ is_name(std::string const& v)
     return ((v.length() > 1) && (v.at(0) == '/'));
 }
 
+static bool
+is_pdf_name(std::string const& v)
+{
+    return ((v.length() > 3) && (v.substr(0, 3) == "n:/"));
+}
+
 bool
 QPDF::test_json_validators()
 {
@@ -740,6 +746,8 @@ QPDF::JSONReactor::makeObject(JSON const& value)
             result = QPDFObjectHandle::newString(QUtil::hex_decode(str));
         } else if (is_name(str_v)) {
             result = QPDFObjectHandle::newName(str_v);
+        } else if (is_pdf_name(str_v)) {
+            result = QPDFObjectHandle::parse(str_v.substr(2));
         } else {
             QTC::TC("qpdf", "QPDF_json unrecognized string value");
             error(value.getStart(), "unrecognized string value");
-- 
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