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csharp: check file availability when saving

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This commit is contained in:
Vladimir Kurguzov
2022-11-24 14:08:08 +03:00
committed by Sergey Linnik
parent 1b44c04893
commit f8aa55143c
1 changed files with 82 additions and 61 deletions
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143
web/documentserver-example/csharp/TrackManager.cs
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@ -130,37 +130,48 @@ namespace OnlineEditorsExample
_Default.VerifySSL(); _Default.VerifySSL();
var storagePath = _Default.StoragePath(newFileName, userAddress); // get the file path try
var histDir = _Default.HistoryDir(storagePath); // get the path to the history directory
if (!Directory.Exists(histDir)) Directory.CreateDirectory(histDir);
var versionDir = _Default.VersionDir(histDir, _Default.GetFileVersion(histDir)); // get the path to the file version
if (!Directory.Exists(versionDir)) Directory.CreateDirectory(versionDir); // if the path doesn't exist, create it
// get the path to the previous file version and rename the storage path with it
File.Copy(_Default.StoragePath(fileName, userAddress), Path.Combine(versionDir, "prev" + curExt));
DownloadToFile(downloadUri, storagePath); // save file to the storage directory
DownloadToFile((string)fileData["changesurl"], Path.Combine(versionDir, "diff.zip")); // save file changes to the diff.zip archive
var hist = fileData.ContainsKey("changeshistory") ? (string)fileData["changeshistory"] : null;
if (string.IsNullOrEmpty(hist) && fileData.ContainsKey("history"))
{ {
var jss = new JavaScriptSerializer(); var bytesFile = DownloadFile(downloadUri); // download document file
hist = jss.Serialize(fileData["history"]); var storagePath = _Default.StoragePath(newFileName, userAddress); // get the file path
}
if (!string.IsNullOrEmpty(hist)) var histDir = _Default.HistoryDir(storagePath); // get the path to the history directory
{ if (!Directory.Exists(histDir)) Directory.CreateDirectory(histDir);
File.WriteAllText(Path.Combine(versionDir, "changes.json"), hist); // write the history changes to the changes.json file
}
File.WriteAllText(Path.Combine(versionDir, "key.txt"), (string)fileData["key"]); // write the key value to the key.txt file var versionDir = _Default.VersionDir(histDir, _Default.GetFileVersion(histDir)); // get the path to the file version
if (!Directory.Exists(versionDir)) Directory.CreateDirectory(versionDir); // if the path doesn't exist, create it
string forcesavePath = _Default.ForcesavePath(newFileName, userAddress, false); // get the path to the forcesaved file version // get the path to the previous file version and rename the storage path with it
File.Copy(_Default.StoragePath(fileName, userAddress), Path.Combine(versionDir, "prev" + curExt));
SaveFile(bytesFile, storagePath);// save document file
var bytesChanges = DownloadFile((string)fileData["changesurl"]); // download changes file
SaveFile(bytesChanges, Path.Combine(versionDir, "diff.zip")); // save file changes to the diff.zip archive
var hist = fileData.ContainsKey("changeshistory") ? (string)fileData["changeshistory"] : null;
if (string.IsNullOrEmpty(hist) && fileData.ContainsKey("history"))
{
var jss = new JavaScriptSerializer();
hist = jss.Serialize(fileData["history"]);
}
if (!string.IsNullOrEmpty(hist))
{
File.WriteAllText(Path.Combine(versionDir, "changes.json"), hist); // write the history changes to the changes.json file
}
File.WriteAllText(Path.Combine(versionDir, "key.txt"), (string)fileData["key"]); // write the key value to the key.txt file
string forcesavePath = _Default.ForcesavePath(newFileName, userAddress, false); // get the path to the forcesaved file version
if (!string.IsNullOrEmpty(forcesavePath)) // if the forcesaved file version exists if (!string.IsNullOrEmpty(forcesavePath)) // if the forcesaved file version exists
{
File.Delete(forcesavePath); // remove it
}
}
catch (Exception)
{ {
File.Delete(forcesavePath); // remove it return 1;
} }
return 0; return 0;
@ -205,43 +216,51 @@ namespace OnlineEditorsExample
_Default.VerifySSL(); _Default.VerifySSL();
string forcesavePath = ""; try
Boolean isSubmitForm = fileData["forcesavetype"].ToString().Equals("3"); // SubmitForm
if (isSubmitForm) // if the form is submitted
{ {
if (newFileName) var bytesFile = DownloadFile(downloadUri); // download document file
string forcesavePath = "";
Boolean isSubmitForm = fileData["forcesavetype"].ToString().Equals("3"); // SubmitForm
if (isSubmitForm) // if the form is submitted
{ {
fileName = _Default.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + "-form" + downloadExt, userAddress); // get the correct file name if it already exists if (newFileName)
{
fileName = _Default.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + "-form" + downloadExt, userAddress); // get the correct file name if it already exists
} else } else
{ {
fileName = _Default.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + "-form" + curExt, userAddress); fileName = _Default.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + "-form" + curExt, userAddress);
}
forcesavePath = _Default.StoragePath(fileName, userAddress);
} }
forcesavePath = _Default.StoragePath(fileName, userAddress); else
}
else
{
if (newFileName)
{ {
fileName = _Default.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + downloadExt, userAddress); if (newFileName)
} {
fileName = _Default.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + downloadExt, userAddress);
}
forcesavePath = _Default.ForcesavePath(fileName, userAddress, false); forcesavePath = _Default.ForcesavePath(fileName, userAddress, false);
if (string.IsNullOrEmpty(forcesavePath)) // create forcesave path if it doesn't exist if (string.IsNullOrEmpty(forcesavePath)) // create forcesave path if it doesn't exist
{
forcesavePath = _Default.ForcesavePath(fileName, userAddress, true);
}
}
SaveFile(bytesFile, forcesavePath);// save document file
if (isSubmitForm)
{ {
forcesavePath = _Default.ForcesavePath(fileName, userAddress, true); var jss = new JavaScriptSerializer();
var actions = jss.Deserialize<List<object>>(jss.Serialize(fileData["actions"]));
var action = jss.Deserialize<Dictionary<string, object>>(jss.Serialize(actions[0]));
var user = action["userid"].ToString(); // get the user id
DocEditor.CreateMeta(fileName, user, "Filling Form", userAddress); // create meta data for the forcesaved file
} }
} }
catch (Exception)
DownloadToFile(downloadUri, forcesavePath);
if (isSubmitForm)
{ {
var jss = new JavaScriptSerializer(); return 1;
var actions = jss.Deserialize<List<object>>(jss.Serialize(fileData["actions"]));
var action = jss.Deserialize<Dictionary<string, object>>(jss.Serialize(actions[0]));
var user = action["userid"].ToString(); // get the user id
DocEditor.CreateMeta(fileName, user, "Filling Form", userAddress); // create meta data for the forcesaved file
} }
return 0; return 0;
@ -313,27 +332,29 @@ namespace OnlineEditorsExample
} }
} }
private static void SaveFile(byte[] data, string path)
{
using (var fs = File.Open(path, FileMode.Create))
{
fs.Write(data, 0, data.Length);
}
}
// save file information from the url to the file specified // save file information from the url to the file specified
private static void DownloadToFile(string url, string path) private static byte[] DownloadFile(string url)
{ {
if (string.IsNullOrEmpty(url)) throw new ArgumentException("url"); // url isn't specified if (string.IsNullOrEmpty(url)) throw new ArgumentException("url"); // url isn't specified
if (string.IsNullOrEmpty(path)) throw new ArgumentException("path"); // file isn't specified
var req = (HttpWebRequest)WebRequest.Create(url); var req = (HttpWebRequest)WebRequest.Create(url);
req.Timeout = 5000; req.Timeout = 5000;
using (var stream = req.GetResponse().GetResponseStream()) // get input stream of the file information from the url using (var stream = req.GetResponse().GetResponseStream()) // get input stream of the file information from the url
{ {
if (stream == null) throw new Exception("stream is null"); if (stream == null) throw new Exception("stream is null");
const int bufferSize = 4096;
using (var fs = File.Open(path, FileMode.Create)) using (MemoryStream memoryStream = new MemoryStream())
{ {
var buffer = new byte[bufferSize]; stream.CopyTo(memoryStream);
int readed; return memoryStream.ToArray();
while ((readed = stream.Read(buffer, 0, bufferSize)) != 0)
{
fs.Write(buffer, 0, readed); // write bytes to the output stream
}
} }
} }
} }