/// <summary>
/// The method is to convert the file to the required format
/// </summary>
/// <param name="documentUri">Uri for the document to convert</param>
/// <param name="fromExtension">Document extension</param>
/// <param name="toExtension">Extension to which to convert</param>
/// <param name="documentRevisionId">Key for caching on service</param>
/// <param name="isAsync">Perform conversions asynchronously</param>
/// <param name="convertedDocumentUri">Uri to the converted document</param>
/// <returns>The percentage of conversion completion</returns>
/// <example>
/// string convertedDocumentUri;
/// GetConvertedUri("http://helpcenter.onlyoffice.com/content/GettingStarted.pdf", ".pdf", ".docx", "http://helpcenter.onlyoffice.com/content/GettingStarted.pdf", false, out convertedDocumentUri);
/// </example>
/// <exception>
/// </exception>
public static int GetConvertedUri(string documentUri,
string fromExtension,
string toExtension,
string documentRevisionId,
bool isAsync,
out string convertedDocumentUri,
string filePass = null,
string lang = null)
{
convertedDocumentUri = string.Empty;
// check if the fromExtension parameter is defined; if not, get it from the document url
fromExtension = string.IsNullOrEmpty(fromExtension) ? Path.GetExtension(documentUri).ToLower() : fromExtension;
// check if the file name parameter is defined; if not, get random uuid for this file
var title = Path.GetFileName(documentUri);
title = string.IsNullOrEmpty(title) ? Guid.NewGuid().ToString() : title;
// get document key
documentRevisionId = string.IsNullOrEmpty(documentRevisionId)
? documentUri
: documentRevisionId;
documentRevisionId = GenerateRevisionId(documentRevisionId);
// specify request parameters
var request = (HttpWebRequest)WebRequest.Create(DocumentConverterUrl);
request.Method = "POST";
request.ContentType = "application/json";
request.Accept = "application/json";
request.Timeout = ConvertTimeout;
// write all the necessary parameters to the body object
var body = new Dictionary <string, object>()
{
{ "async", isAsync },
{ "filetype", fromExtension.Trim('.') },
{ "key", documentRevisionId },
{ "outputtype", toExtension.Trim('.') },
{ "title", title },
{ "url", documentUri },
{ "password", filePass },
{ "region", lang }
};
if (JwtManager.Enabled)
{
// create payload object
var payload = new Dictionary <string, object>
{
{ "payload", body }
};
var payloadToken = JwtManager.Encode(payload); // encode the payload object to the payload token
var bodyToken = JwtManager.Encode(body); // encode the body object to the body token
// create header token
string JWTheader = WebConfigurationManager.AppSettings["files.docservice.header"].Equals("") ? "Authorization" : WebConfigurationManager.AppSettings["files.docservice.header"];
request.Headers.Add(JWTheader, "Bearer " + payloadToken);
body.Add("token", bodyToken);
}
var bytes = Encoding.UTF8.GetBytes(new JavaScriptSerializer().Serialize(body));
request.ContentLength = bytes.Length;
using (var requestStream = request.GetRequestStream()) // get the request stream
{
requestStream.Write(bytes, 0, bytes.Length); // and write the serialized body object to it
}
DocManagerHelper.VerifySSL();
string dataResponse;
using (var response = request.GetResponse())
using (var stream = response.GetResponseStream()) // get the response stream
{
if (stream == null)
{
throw new Exception("Response is null");
}
using (var reader = new StreamReader(stream))
{
dataResponse = reader.ReadToEnd(); // and read it
}
}
return(GetResponseUri(dataResponse, out convertedDocumentUri));
}
// create a command request
public static void commandRequest(string method, string key, object meta = null)
{
DocManagerHelper.VerifySSL();
string documentCommandUrl = WebConfigurationManager.AppSettings["files.docservice.url.site"] + WebConfigurationManager.AppSettings["files.docservice.url.command"];
var request = (HttpWebRequest)WebRequest.Create(documentCommandUrl);
request.Method = "POST";
request.ContentType = "application/json";
var body = new Dictionary <string, object>()
{
{ "c", method },
{ "key", key }
};
if (meta != null)
{
body.Add("meta", meta);
}
// check if a secret key to generate token exists or not
if (JwtManager.Enabled)
{
var payload = new Dictionary <string, object>
{
{ "payload", body }
};
var payloadToken = JwtManager.Encode(payload); // encode a payload object into a header token
var bodyToken = JwtManager.Encode(body); // encode body into a body token
string JWTheader = WebConfigurationManager.AppSettings["files.docservice.header"].Equals("") ? "Authorization" : WebConfigurationManager.AppSettings["files.docservice.header"];
request.Headers.Add(JWTheader, "Bearer " + payloadToken); // add a header Authorization with a header token and Authorization prefix in it
body.Add("token", bodyToken);
}
var bytes = Encoding.UTF8.GetBytes(new JavaScriptSerializer().Serialize(body));
request.ContentLength = bytes.Length;
using (var requestStream = request.GetRequestStream())
{
// write bytes to the output stream
requestStream.Write(bytes, 0, bytes.Length);
}
string dataResponse;
using (var response = request.GetResponse()) // get the response
using (var stream = response.GetResponseStream())
{
if (stream == null)
{
throw new Exception("Response is null");
}
using (var reader = new StreamReader(stream))
{
dataResponse = reader.ReadToEnd(); // and read it
}
}
// convert stream to json string
var jss = new JavaScriptSerializer();
var responseObj = jss.Deserialize <Dictionary <string, object> >(dataResponse);
if (!responseObj["error"].ToString().Equals("0"))
{
throw new Exception(dataResponse);
}
}
// file saving process
public static int processSave(Dictionary <string, object> fileData, string fileName, string userAddress)
{
if (fileData["url"].Equals(null))
{
throw new Exception("DownloadUrl is null");
}
var downloadUri = (string)fileData["url"];
string curExt = Path.GetExtension(fileName).ToLower(); // get current file extension
var downloadExt = fileData.ContainsKey("filetype")
? "." + (string)fileData["filetype"]
: Path.GetExtension(downloadUri).ToLower() ?? ""; // TODO: Delete in version 7.0 or higher. Support for versions below 7.0
var newFileName = fileName;
// convert downloaded file to the file with the current extension if these extensions aren't equal
if (!curExt.Equals(downloadExt, StringComparison.InvariantCultureIgnoreCase))
{
try
{
// convert file and give url to a new file
string newFileUri;
var result = ServiceConverter.GetConvertedUri(downloadUri, downloadExt, curExt, ServiceConverter.GenerateRevisionId(downloadUri), false, out newFileUri);
if (string.IsNullOrEmpty(newFileUri))
{
// get the correct file name if it already exists
newFileName = DocManagerHelper.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + downloadExt, userAddress);
}
else
{
downloadUri = newFileUri;
}
}
catch (Exception)
{
newFileName = DocManagerHelper.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + downloadExt, userAddress);
}
}
DocManagerHelper.VerifySSL();
var storagePath = DocManagerHelper.StoragePath(newFileName, userAddress); // get the file path
var histDir = DocManagerHelper.HistoryDir(storagePath); // get the path to the history directory
if (!Directory.Exists(histDir))
{
Directory.CreateDirectory(histDir);
}
var versionDir = DocManagerHelper.VersionDir(histDir, DocManagerHelper.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 move it to the storage directory
File.Move(DocManagerHelper.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();
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 = DocManagerHelper.ForcesavePath(newFileName, userAddress, false); // get the path to the forcesaved file version
if (!forcesavePath.Equals("")) // if the forcesaved file version exists
{
File.Delete(forcesavePath); // remove it
}
return(0);
}
// file force saving process
public static int processForceSave(Dictionary <string, object> fileData, string fileName, string userAddress)
{
if (fileData["url"].Equals(null))
{
throw new Exception("DownloadUrl is null");
}
var downloadUri = (string)fileData["url"];
string curExt = Path.GetExtension(fileName).ToLower(); // get current file extension
var downloadExt = fileData.ContainsKey("filetype")
? "." + (string)fileData["filetype"]
: Path.GetExtension(downloadUri).ToLower(); // TODO: Delete in version 7.0 or higher. Support for versions below 7.0
Boolean newFileName = false;
// convert downloaded file to the file with the current extension if these extensions aren't equal
if (!curExt.Equals(downloadExt))
{
try
{
// convert file and give url to a new file
string newFileUri;
var result = ServiceConverter.GetConvertedUri(downloadUri, downloadExt, curExt, ServiceConverter.GenerateRevisionId(downloadUri), false, out newFileUri);
if (string.IsNullOrEmpty(newFileUri))
{
newFileName = true;
}
else
{
downloadUri = newFileUri;
}
}
catch (Exception)
{
newFileName = true;
}
}
DocManagerHelper.VerifySSL();
string forcesavePath = "";
Boolean isSubmitForm = fileData["forcesavetype"].ToString().Equals("3"); // SubmitForm
if (isSubmitForm) // if the form is submitted
{
if (newFileName)
{
fileName = DocManagerHelper.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + "-form" + downloadExt, userAddress); // get the correct file name if it already exists
}
else
{
fileName = DocManagerHelper.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + "-form" + curExt, userAddress);
}
forcesavePath = DocManagerHelper.StoragePath(fileName, userAddress);
}
else
{
if (newFileName)
{
fileName = DocManagerHelper.GetCorrectName(Path.GetFileNameWithoutExtension(fileName) + downloadExt, userAddress);
}
forcesavePath = DocManagerHelper.ForcesavePath(fileName, userAddress, false);
if (forcesavePath.Equals("")) // create forcesave path if it doesn't exist
{
forcesavePath = DocManagerHelper.ForcesavePath(fileName, userAddress, true);
}
}
DownloadToFile(downloadUri, forcesavePath);
if (isSubmitForm)
{
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
DocManagerHelper.CreateMeta(fileName, user, "Filling Form", userAddress); // create meta data for the forcesaved file
}
return(0);
}