Given a string named command, I need to create GLib InputStream object How? Thanks
string command = "foobar";
GLib.InputStream input_stream = new GLib.MemoryInputStream.from_data (command.data, GLib.g_free);
Related
I use createIssue() routine in my script. This routine gnneeds the issue type name as an input.
To make the script resistant to issue type renaming I'd like to put issue type id instaead of issue type name in it. I know how to find out the id, but do do not the convinient way to transform it to name
just wrote a SIL routine, getting issue type name from Jira REST API
function getIssueTypeNameById(int issueID) {
string uname = "username";
string pwd = "password";
HttpRequest request;
HttpHeader header1 = httpBasicAuthHeader(uname, pwd);
request.headers += header1;
string url = "https://<domain>/rest/api/2/issuetype/" + issueID;
struct issueName { string name; }
issueName issName = httpGet(url, request);
return issName;
}
IoT modules can be created from the environment using :
ModuleClient.CreateFromEnvironmentAsync(settings)
However, there does not seem to be an equivalent method for devices. For now, I am setting the device connection string in the program to test it out, but is there a better way to read teh connection string from iotedge/config.yaml for all the edge devices deployed out there?
Methods to do so for .NET and python would be appreciated.
You can use a yaml parse library to deserialize the document, such as YamlDotNet. In fact, you can refer to YamlDocument in iot edge. But in the class, it does not provide a method to get the key value. Please refer to following code.
public class YamlDocument
{
readonly Dictionary<object, object> root;
public YamlDocument(string input)
{
var reader = new StringReader(input);
var deserializer = new Deserializer();
this.root = (Dictionary<object, object>)deserializer.Deserialize(reader);
}
public object GetKeyValue(string key)
{
if(this.root.ContainsKey(key))
{
return this.root[key];
}
foreach(var item in this.root)
{
var subItem = item.Value as Dictionary<object, object>;
if(subItem != null && subItem.ContainsKey(key))
{
return subItem[key];
}
}
return null;
}
}
And then you can get the device connection string from the config.yaml. If you use python, you can import yaml library to analysis the file.
StreamReader sr = new StreamReader(#"C:\ProgramData\iotedge\config.yaml");
var yamlString = sr.ReadToEnd();
var yamlDoc = new YamlDocument(yamlString);
var connectionString = yamlDoc.GetKeyValue("device_connection_string");
Console.WriteLine("{0}", connectionString);
To get the config file from the host, add the following to the docker deployment file. Note that the source file is config1.yaml which is the same as config.yaml except that it has read permissions for everyone not just root.
"createOptions": "{\"HostConfig\":{\"Binds\":[\"/etc/iotedge/config1.yaml:/app/copiedConfig.yaml\"]}}"
With the above line in place, the copiedConfig.yaml file can be used in the container, along with #Michael Xu's parsing code to derive teh connection string.
Long term, one may want to use the device provisioning service anyway but hope this helps for folks using device conenction strings for whatever reason..
I'm trying to copy an sqlite database from the root bundle onto the file system in order to use it.
I've tried many different ways but it always ended up writing incorrect amounts of data to disk. The code I'm using looks like this:
Directory appDocDir = await getExternalStorageDirectory();
String path = join(appDocDir.path, "data.db");
bool exists = await new File(path).exists();
if (!exists) {
var out = new File(path).openWrite();
var data = await rootBundle.load("assets/data.sqlite");
var list = data.buffer.asUint8List();
out.write(list);
out.close();
}
I was able to do that by the followings.
ByteData data = await rootBundle.load("data.sqlite");
List<int> bytes = data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
Directory appDocDir = await getApplicationDocumentsDirectory()
String path = join(appDocDir.path, "data.db");
await File(path).writeAsBytes(bytes);
You can't write the contents of a Uint8List to a File using IOSink.write (which is designed to operate on String arguments). You'll end up writing the UTF-8 encoded representation of the String obtained by calling toString() on your Uint8List, which is probably much larger than the actual contents of the list.
Instead, you can write a Uint8List to the file using IOSink.add.
In the example you've provided, you could also write the entire file at once using new File(path).writeAsBytes(list).
Basically i am using a LetsEncrypt service to get a certificate byte[] back that i can turn into a X509Certificate2 but then it is missing the private key to then use it on a SSLStream. I have the private key as a RSAParameters but can also convert it to a byte[] but i can't seem to find a way to get the 2 together in the same X509Certificate2 so i can use it for AuthenticateAsServer on a SSLStream. The methods you would use for dotnet 4 don't seems to apply for dnx50 as far as i can tell. I working example would be perfect and i want to keep the solution in dnx50 as i want to deploy this to linux and windows boxes.
Basically trying to do something similar to Convert Certificate and Private Key to .PFX programatically in C# but to just create the X509 with private key though saving would be my next task.
From what i can tell so far i think that dnx50 does not allow you to create a cetificate object and to then add a private key to it like dotnet 4 did. Instead i think i need to pass in a a file or byte[] that contains both for this to work but i don't know how to merge my 2 byte arrays together or to format them.
Finally worked out a solution for this. Not ideal but it works. Basically it uses bouncyCastle to create a pfx stream and then you can read that in to load the private key with the certificate. To do that on CoreCLR i used the nuget package Portable.BouncyCastle:1.8.1 with the following code i put in a helper class.
public X509Certificate2 CreateX509Certificate2(RSAParameters keys, byte[] certificateBytes, string friendlyName)
{
if (string.IsNullOrWhiteSpace(friendlyName))
{
friendlyName = "default";
}
var store = new Pkcs12Store();
var convertedKeys = GetRsaKeyPair(keys);
var certificate = new X509CertificateParser().ReadCertificate(certificateBytes);
store.SetKeyEntry(friendlyName, new AsymmetricKeyEntry(convertedKeys.Private), new X509CertificateEntry[] { new X509CertificateEntry(certificate)});
using (MemoryStream ms = new MemoryStream())
{
var random = new SecureRandom();
string password = random.Next().ToString() + random.Next().ToString() + random.Next().ToString();
store.Save(ms, password.ToCharArray(), random);
var cert = new X509Certificate2(ms.ToArray(), password, X509KeyStorageFlags.Exportable);
return cert;
}
}
private AsymmetricCipherKeyPair GetRsaKeyPair(
RSAParameters rp)
{
BigInteger modulus = new BigInteger(1, rp.Modulus);
BigInteger pubExp = new BigInteger(1, rp.Exponent);
RsaKeyParameters pubKey = new RsaKeyParameters(
false,
modulus,
pubExp);
RsaPrivateCrtKeyParameters privKey = new RsaPrivateCrtKeyParameters(
modulus,
pubExp,
new BigInteger(1, rp.D),
new BigInteger(1, rp.P),
new BigInteger(1, rp.Q),
new BigInteger(1, rp.DP),
new BigInteger(1, rp.DQ),
new BigInteger(1, rp.InverseQ));
return new AsymmetricCipherKeyPair(pubKey, privKey);
}
I have an word file that contain my specified pattern text {pattern} and I want to replace those pattern with new my string which was read from database. So I used open xml read stream from my docx template file the replace my pattern string then returned to stream which support to download file without create a temporary file. But when I opened it generated me error on docx file. Below is my example code
public ActionResult SearchAndReplace(string FilePath)
{
MemoryStream mem = new MemoryStream(System.IO.File.ReadAllBytes(FilePath));
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(mem, true))
{
string docText = null;
using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
{
docText = sr.ReadToEnd();
}
Regex regexText = new Regex("Hello world!");
docText = regexText.Replace(docText, "Hi Everyone!");
//Instead using this code below to write text back the original file. I write new string back to memory stream and return to a stream download file
//using (StreamWriter sw = new //StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
//{
// sw.Write(docText);
//}
using (StreamWriter sw = new StreamWriter(mem))
{
sw.Write(docText);
}
}
mem.Seek(0, SeekOrigin.Begin);
return File(mem, "application/octet-stream","download.docx"); //Return to download file
}
Please suggest me any solutions instead read a text from a word file and replace those expected pattern text then write data back to the original file. Are there any solutions replace text with WordprocessingDocument libary? How can I return to memory stream with validation docx file format?
The approach you are taking is not correct. If, by chance, the pattern you are searching for matches some Open XML markup, you will corrupt the document. If the text you are searching for is split over multiple runs, your search/replace code will not find the text and will not operate correctly. If you want to search and replace text in a WordprocessingML document, there is a fairly easy algorithm that you can use:
Break all runs into runs of a single
character. This includes runs that
have special characters such as a
line break, carriage return, or hard
tab.
It is then pretty easy to find a
set of runs that match the characters
in your search string.
Once you have identified a set of runs that match,
then you can replace that set of runs
with a newly created run (which has
the run properties of the run
containing the first character that
matched the search string).
After replacing the single-character runs
with a newly created run, you can
then consolidate adjacent runs with
identical formatting.
I've written a blog post and recorded a screen-cast that walks through this algorithm.
Blog post: http://openxmldeveloper.org/archive/2011/05/12/148357.aspx
Screen cast: http://www.youtube.com/watch?v=w128hJUu3GM
-Eric
string sourcepath = HttpContext.Server.MapPath("~/File/Form/s.docx");
string targetPath = HttpContext.Server.MapPath("~/File/ExportTempFile/" + DateTime.Now.ToOADate() + ".docx");
System.IO.File.Copy(sourcepath, targetPath, true);
using (WordprocessingDocument wordDocument = WordprocessingDocument.Open(targetPath, true))
{
string docText = null;
using (StreamReader sr = new StreamReader(wordDocument.MainDocumentPart.GetStream()))
{
docText = sr.ReadToEnd();
}
Regex regexText = new Regex("Hello world!");
docText = regexText.Replace(docText, "Hi Everyone!");
byte[] byteArray = Encoding.UTF8.GetBytes(docText);
MemoryStream stream = new MemoryStream(byteArray);
wordDocument.MainDocumentPart.FeedData(stream);
}
MemoryStream mem = new MemoryStream(System.IO.File.ReadAllBytes(targetPath));
return File(mem, "application/octet-stream", "download.docx");
Writing directly to the word document stream will indeed corrupt it.
You should instead write to the MainDocumentPart stream, but you should first truncate it.
It looks like MainDocumentPart.FeedData(Stream sourceStream) method will do just that.
I haven't tested it but this should work.
public ActionResult SearchAndReplace(string FilePath)
{
MemoryStream mem = new MemoryStream(System.IO.File.ReadAllBytes(FilePath));
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(mem, true))
{
string docText = null;
using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
{
docText = sr.ReadToEnd();
}
Regex regexText = new Regex("Hello world!");
docText = regexText.Replace(docText, "Hi Everyone!");
using (MemoryStream ms = new MemoryStream())
{
using (StreamWriter sw = new StreamWriter(ms))
{
sw.Write(docText);
}
ms.Seek(0, SeekOrigin.Begin);
wordDoc.MainDocumentPart.FeedData(ms);
}
}
mem.Seek(0, SeekOrigin.Begin);
return File(mem, "application/octet-stream","download.docx"); //Return to download file
}