Merge branch 'develop' into stable

1 files changed, 18 insertions, 0 deletions

diff --git a/src/SMAPI/Framework/ContentPack.cs b/src/SMAPI/Framework/ContentPack.cs
index 62d8b80d..49285388 100644
--- a/src/SMAPI/Framework/ContentPack.cs
+++ b/src/SMAPI/Framework/ContentPack.cs
@@ -51,14 +51,32 @@ namespace StardewModdingAPI.Framework
         /// <typeparam name="TModel">The model type.</typeparam>
         /// <param name="path">The file path relative to the contnet directory.</param>
         /// <returns>Returns the deserialised model, or <c>null</c> if the file doesn't exist or is empty.</returns>
+        /// <exception cref="InvalidOperationException">The <paramref name="path"/> is not relative or contains directory climbing (../).</exception>
         public TModel ReadJsonFile<TModel>(string path) where TModel : class
         {
+            if (!PathUtilities.IsSafeRelativePath(path))
+                throw new InvalidOperationException($"You must call {nameof(IContentPack)}.{nameof(this.ReadJsonFile)} with a relative path.");
+
             path = Path.Combine(this.DirectoryPath, PathUtilities.NormalisePathSeparators(path));
             return this.JsonHelper.ReadJsonFileIfExists(path, out TModel model)
                 ? model
                 : null;
         }
 
+        /// <summary>Save data to a JSON file in the content pack's folder.</summary>
+        /// <typeparam name="TModel">The model type. This should be a plain class that has public properties for the data you want. The properties can be complex types.</typeparam>
+        /// <param name="path">The file path relative to the mod folder.</param>
+        /// <param name="data">The arbitrary data to save.</param>
+        /// <exception cref="InvalidOperationException">The <paramref name="path"/> is not relative or contains directory climbing (../).</exception>
+        public void WriteJsonFile<TModel>(string path, TModel data) where TModel : class
+        {
+            if (!PathUtilities.IsSafeRelativePath(path))
+                throw new InvalidOperationException($"You must call {nameof(IContentPack)}.{nameof(this.WriteJsonFile)} with a relative path.");
+
+            path = Path.Combine(this.DirectoryPath, PathUtilities.NormalisePathSeparators(path));
+            this.JsonHelper.WriteJsonFile(path, data);
+        }
+
         /// <summary>Load content from the content pack folder (if not already cached), and return it. When loading a <c>.png</c> file, this must be called outside the game's draw loop.</summary>
         /// <typeparam name="T">The expected data type. The main supported types are <see cref="Map"/>, <see cref="Texture2D"/>, and dictionaries; other types may be supported by the game's content pipeline.</typeparam>
         /// <param name="key">The local path to a content file relative to the content pack folder.</param>