check that a separator is found for psbt inputs, outputs, and global map

achow101 · achow101 · commit 4fb3388db95f · 2018-10-03T00:26:10.000-04:00
diff --git a/src/script/sign.h b/src/script/sign.h
@@ -300,14 +300,18 @@ struct PSBTInput
     template <typename Stream>
     inline void Unserialize(Stream& s) {
         // Read loop
+        bool found_sep = false;
         while(!s.empty()) {
             // Read
             std::vector<unsigned char> key;
             s >> key;
 
             // the key is empty if that was actually a separator byte
             // This is a special case for key lengths 0 as those are not allowed (except for separator)
-            if (key.empty()) return;
+            if (key.empty()) {
+                found_sep = true;
+                break;
+            }
 
             // First byte of key is the type
             unsigned char type = key[0];
@@ -422,6 +426,10 @@ struct PSBTInput
                     break;
             }
         }
+
+        if (!found_sep) {
+            throw std::ios_base::failure("Separator is missing at the end of an input map");
+        }
     }
 
     template <typename Stream>
@@ -475,14 +483,18 @@ struct PSBTOutput
     template <typename Stream>
     inline void Unserialize(Stream& s) {
         // Read loop
+        bool found_sep = false;
         while(!s.empty()) {
             // Read
             std::vector<unsigned char> key;
             s >> key;
 
             // the key is empty if that was actually a separator byte
             // This is a special case for key lengths 0 as those are not allowed (except for separator)
-            if (key.empty()) return;
+            if (key.empty()) {
+                found_sep = true;
+                break;
+            }
 
             // First byte of key is the type
             unsigned char type = key[0];
@@ -527,6 +539,10 @@ struct PSBTOutput
                 }
             }
         }
+
+        if (!found_sep) {
+            throw std::ios_base::failure("Separator is missing at the end of an output map");
+        }
     }
 
     template <typename Stream>
@@ -602,14 +618,18 @@ struct PartiallySignedTransaction
         }
 
         // Read global data
+        bool found_sep = false;
         while(!s.empty()) {
             // Read
             std::vector<unsigned char> key;
             s >> key;
 
             // the key is empty if that was actually a separator byte
             // This is a special case for key lengths 0 as those are not allowed (except for separator)
-            if (key.empty()) break;
+            if (key.empty()) {
+                found_sep = true;
+                break;
+            }
 
             // First byte of key is the type
             unsigned char type = key[0];
@@ -649,6 +669,10 @@ struct PartiallySignedTransaction
             }
         }
 
+        if (!found_sep) {
+            throw std::ios_base::failure("Separator is missing at the end of the global map");
+        }
+
         // Make sure that we got an unsigned tx
         if (!tx) {
             throw std::ios_base::failure("No unsigned transcation was provided");
diff --git a/test/functional/data/rpc_psbt.json b/test/functional/data/rpc_psbt.json
@@ -17,7 +17,8 @@
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+        "cHNidP8BAHMCAAAAATAa6YblFqHsisW0vGVz0y+DtGXiOtdhZ9aLOOcwtNvbAAAAAAD/////AnR7AQAAAAAAF6kUA6oXrogrXQ1Usl1jEE5P/s57nqKHYEOZOwAAAAAXqRS5IbG6b3IuS/qDtlV6MTmYakLsg4cAAAAAAAEBHwDKmjsAAAAAFgAU0tlLZK4IWH7vyO6xh8YB6Tn5A3wAAQAWABRi6emC//NN2COWEDFrCQzSo7dHywABACIAIIdrrYMvHRaAFe1BIyqeploYFdnvE8Dvh1n2S1srJ4plIQEAJVEhA7fOI6AcW0vwCmQlN836uzFbZoMyhnR471EwnSvVf4qHUa4A",
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     ],
     "valid" : [
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