Feature/reference data

web/documentserver-example/csharp-mvc/Models/FileModel.cs

@@ -138,6 +138,17 @@ public string GetDocConfig(HttpRequest request, UrlHelper url)
                                             { "favorite", favorite}
                                         }
                                 },
+                                {
+                                    "referenceData", new Dictionary<string, string>()
+                                    {
+                                        { "fileKey", !user.id.Equals("uid-0") ?
+                                            jss.Serialize(new Dictionary<string, object>{
+                                                {"fileName", FileName},
+                                                {"userAddress", HttpUtility.UrlEncode(_Default.CurUserHostAddress(HttpContext.Current.Request.UserHostAddress))}
+                                        }) : null },
+                                        {"instanceId", _Default.GetServerUrl(false) }
+                                    }
+                                },
                                 {
                                     // the permission for the document to be edited and downloaded or not
                                     "permissions", new Dictionary<string, object>

web/documentserver-example/csharp-mvc/Views/Home/Editor.aspx

@@ -178,6 +178,18 @@
             }
         };
 
+        var onRequestReferenceData = function (event) {  // user refresh external data source
+            event.data.directUrl = !!config.document.directUrl;
+            let xhr = new XMLHttpRequest();
+            xhr.open("POST", "webeditor.ashx?type=reference");
+            xhr.setRequestHeader("Content-Type", "application/json");
+            xhr.send(JSON.stringify(event.data));
+            xhr.onload = function () {
+                console.log(xhr.responseText);
+                docEditor.setReferenceData(JSON.parse(xhr.responseText));
+            }
+        };
+
         config = <%= Model.GetDocConfig(Request, Url) %>;
 
         config.width = "100%";
@@ -239,6 +251,7 @@
             };
             // prevent file renaming for anonymous users
             config.events['onRequestRename'] = onRequestRename;
+            config.events['onRequestReferenceData'] = onRequestReferenceData;
         }
 
         if (config.editorConfig.createUrl) {

web/documentserver-example/csharp-mvc/WebEditor.ashx.cs

@@ -74,6 +74,9 @@ public void ProcessRequest(HttpContext context)
                 case "rename":
                     Rename(context);
                     break;
+                case "reference":
+                    Reference(context);
+                    break;
             }
         }
 
@@ -591,5 +594,96 @@ private static void Rename(HttpContext context)
             TrackManager.commandRequest("meta", docKey, meta);
             context.Response.Write("{ \"result\": \"OK\"}");
         }
+
+        private static void Reference(HttpContext context)
+        {
+            string fileData;
+            try
+            {
+                using (var receiveStream = context.Request.InputStream)
+                using (var readStream = new StreamReader(receiveStream))
+                {
+                    fileData = readStream.ReadToEnd();
+                    if (string.IsNullOrEmpty(fileData)) return;
+                }
+            }
+            catch (Exception e)
+            {
+                throw new HttpException((int)HttpStatusCode.BadRequest, e.Message);
+            }
+
+            var jss = new JavaScriptSerializer();
+            var body = jss.Deserialize<Dictionary<string, object>>(fileData);
+            Dictionary<string, object> referenceData = null;
+            var fileName = "";
+            var userAddress = "";
+
+            if (body.ContainsKey("referenceData"))
+            {
+                referenceData = jss.Deserialize<Dictionary<string, object>>(jss.Serialize(body["referenceData"]));
+                var instanceId = (string)referenceData["instanceId"];
+                var fileKey = (string)referenceData["fileKey"];
+                if (instanceId == _Default.GetServerUrl(false))
+                {
+                    var fileKeyObj = jss.Deserialize<Dictionary<string, object>>(fileKey);
+                    userAddress = (string)fileKeyObj["userAddress"];
+                    if (userAddress == HttpUtility.UrlEncode(_Default.CurUserHostAddress(HttpContext.Current.Request.UserHostAddress)))
+                    {
+                        fileName = (string)fileKeyObj["fileName"];
+                    }
+                }
+            }
+
+            if (fileName != "")
+            {
+                try
+                {
+                    var path = (string)body["path"];
+                    path = Path.GetFileName(path);
+                    if (File.Exists(_Default.StoragePath(path, null)))
+                    {
+                        fileName = path;
+                    }
+                }
+                catch
+                {
+                    context.Response.Write("{ \"error\": \"Path not found!\"}");
+                    return;
+                }
+            }
+
+            if (fileName == "")
+            {
+                context.Response.Write("{ \"error\": \"File not found!\"}");
+                return;
+            }
+
+            var data = new Dictionary<string, object>() {
+            { "fileType", (Path.GetExtension(fileName) ?? "").ToLower() },
+            { "url",  DocEditor.getDownloadUrl(fileName)},
+            { "directUrl",  DocEditor.getDownloadUrl(fileName) },
+            { "referenceData", new Dictionary<string, string>()
+                {
+                    { "fileKey", jss.Serialize(new Dictionary<string, object>{
+                            {"fileName", fileName},
+                            {"userAddress", HttpUtility.UrlEncode(_Default.CurUserHostAddress(HttpContext.Current.Request.UserHostAddress))}
+                    })
+                    },
+                    {"instanceId", _Default.GetServerUrl(false) }
+                }
+            },
+            { "path", fileName }
+            };
+
+            if (JwtManager.Enabled)
+            {
+                var token = JwtManager.Encode(data);
+                data.Add("token", token);
+            }
+
+            context.Response.Write(jss.Serialize(data).Replace(@"\u0026", "&"));
+        }
+
+    }
     }
 }

web/documentserver-example/csharp/DocEditor.aspx

@@ -190,6 +190,19 @@
             }
         };
 
+        var onRequestReferenceData = function (event) {  // user refresh external data source
+
+            event.data.directUrl = !!config.document.directUrl;
+            let xhr = new XMLHttpRequest();
+            xhr.open("POST", "webeditor.ashx?type=reference");
+            xhr.setRequestHeader("Content-Type", "application/json");
+            xhr.send(JSON.stringify(event.data));
+            xhr.onload = function () {
+                console.log(xhr.responseText);
+                docEditor.setReferenceData(JSON.parse(xhr.responseText));
+            }
+        };
+
         config = <%= DocConfig %>;
 
         config.width = "100%";
@@ -242,6 +255,7 @@
             };
             // prevent file renaming for anonymous users
             config.events['onRequestRename'] = onRequestRename;
+            config.events['onRequestReferenceData'] = onRequestReferenceData;
         }
 
         if (config.editorConfig.createUrl) {

web/documentserver-example/csharp/DocEditor.aspx.cs

@@ -206,6 +206,17 @@ protected void Page_Load(object sender, EventArgs e)
                                             { "favorite", favorite }
                                         }
                                 },
+                                {
+                                    "referenceData", new Dictionary<string, string>()
+                                    {
+                                        { "fileKey", !user.id.Equals("uid-0") ?
+                                            jss.Serialize(new Dictionary<string, object>{
+                                                {"fileName", FileName},
+                                                {"userAddress", HttpUtility.UrlEncode(_Default.CurUserHostAddress(HttpContext.Current.Request.UserHostAddress))}
+                                        }) : null },
+                                        {"instanceId", _Default.GetServerUrl(false) }
+                                    }
+                                },
                                 {
                                     // the permission for the document to be edited and downloaded or not
                                     "permissions", new Dictionary<string, object>

web/documentserver-example/csharp/WebEditor.ashx.cs

@@ -26,6 +26,7 @@
 using System.Web.Configuration;
 using System.Linq;
 using System.Net;
+using System.Net.Sockets;
 
 namespace OnlineEditorsExample
 {
@@ -71,6 +72,9 @@ public void ProcessRequest(HttpContext context)
                 case "rename":
                     Rename(context);
                     break;
+                case "reference":
+                    Reference(context);
+                    break;
             }
         }
 
@@ -409,5 +413,94 @@ private static void Rename(HttpContext context)
             TrackManager.commandRequest("meta", docKey, meta);
             context.Response.Write("{ \"result\": \"OK\"}");
         }
+
+        private static void Reference(HttpContext context)
+        {
+            string fileData;
+            try
+            {
+                using (var receiveStream = context.Request.InputStream)
+                using (var readStream = new StreamReader(receiveStream))
+                {
+                    fileData = readStream.ReadToEnd();
+                    if (string.IsNullOrEmpty(fileData)) return;
+                }
+            }
+            catch (Exception e)
+            {
+                throw new HttpException((int)HttpStatusCode.BadRequest, e.Message);
+            }
+
+            var jss = new JavaScriptSerializer();
+            var body = jss.Deserialize<Dictionary<string, object>>(fileData);
+            Dictionary<string, object> referenceData = null;
+            var fileName = "";
+            var userAddress = "";
+
+            if (body.ContainsKey("referenceData"))
+            {
+                referenceData = jss.Deserialize<Dictionary<string, object>>(jss.Serialize(body["referenceData"]));
+                var instanceId = (string)referenceData["instanceId"];
+                var fileKey = (string)referenceData["fileKey"];
+                if (instanceId == _Default.GetServerUrl(false))
+                {
+                    var fileKeyObj = jss.Deserialize<Dictionary<string, object>>(fileKey);
+                    userAddress = (string)fileKeyObj["userAddress"];
+                    if (userAddress == HttpUtility.UrlEncode(_Default.CurUserHostAddress(HttpContext.Current.Request.UserHostAddress)))
+                    {
+                        fileName = (string)fileKeyObj["fileName"];
+                    }
+                }
+            }
+
+            if (fileName != "")
+            {
+                try
+                {
+                    var path = (string)body["path"];
+                    path = Path.GetFileName(path);
+                    if (File.Exists(_Default.StoragePath(path, null)))
+                    {
+                        fileName = path;
+                    }
+                }
+                catch
+                {
+                    context.Response.Write("{ \"error\": \"Path not found!\"}");
+                    return;
+                }
+            }
+
+            if (fileName == "")
+            {
+                context.Response.Write("{ \"error\": \"File not found!\"}");
+                return;
+            }
+
+            var data = new Dictionary<string, object>() {
+            { "fileType", (Path.GetExtension(fileName) ?? "").ToLower() },
+            { "url",  DocEditor.getDownloadUrl(fileName)},
+            { "directUrl",  DocEditor.getDownloadUrl(fileName) },
+            { "referenceData", new Dictionary<string, string>()
+                {
+                    { "fileKey", jss.Serialize(new Dictionary<string, object>{
+                            {"fileName", fileName},
+                            {"userAddress", HttpUtility.UrlEncode(_Default.CurUserHostAddress(HttpContext.Current.Request.UserHostAddress))}
+                    })
+                    },
+                    {"instanceId", _Default.GetServerUrl(false) }
+                }
+            },
+            { "path", fileName }
+            };
+
+            if (JwtManager.Enabled)
+            {
+                var token = JwtManager.Encode(data);
+                data.Add("token", token);
+            }
+
+            context.Response.Write(jss.Serialize(data).Replace(@"\u0026", "&"));
+        }
     }
 }