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|
Imports Microsoft.Win32
Imports System.IO
Imports System.Net
Imports System.Web
Imports System.Threading
Imports System.Reflection
Public Class Form1
Private _userAgent As String = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)"
Private _accept As String = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*"
Private _accept_encoding As String = "gzip, deflate"
Private _accept_charset As String = "ISO-8859-1,utf-8;q=0.7,*;q=0.7"
Private _referer As String
Private _boundary As String = "---------------------------" & DateTime.Now.Ticks.ToString("x")
Private _contentType As String
Private _contentLength As Integer
Private _querystring As New Specialized.NameValueCollection()
Private _isBusy As Boolean
Private _cancel As Boolean
Const BufferSize As Integer = &H2000 '2048
Private _waitHandle As RegisteredWaitHandle
Public Delegate Sub UploadCompletedHandler(ByVal e As UploadCompletedArgs)
Public Delegate Sub UploadProgressHandler(ByVal bytesRead As Integer, ByVal totalBytes As Integer)
Public Event UploadProgress(ByVal bytesRead As Integer, ByVal totalBytes As Integer)
Public Event UploadCompleted(ByVal e As UploadCompletedArgs)
Private Class DatasToSend
Public HeaderBytes() As Byte
Public FileStream As FileStream
Public FooterBytes() As Byte
ReadOnly Property Length() As Integer
Get
Return HeaderBytes.Length + FooterBytes.Length + FileStream.Length
End Get
End Property
End Class
''' <summary>
''' DEFAULT
''' </summary>
''' <value></value>
''' <returns></returns>
''' <remarks></remarks>
Public ReadOnly Property Boundary() As String
Get
Return _boundary
End Get
End Property
Public Property QueryString() As Specialized.NameValueCollection
Get
Return _querystring
End Get
Set(ByVal value As Specialized.NameValueCollection)
_querystring = value
End Set
End Property
''' <summary>
''' DEFAULT
''' </summary>
''' <value></value>
''' <returns></returns>
''' <remarks></remarks>
Public ReadOnly Property ContentLength() As Integer
Get
Return _contentLength
End Get
End Property
Public Property Referer() As String
Get
Return _referer
End Get
Set(ByVal value As String)
_referer = value
End Set
End Property
''' <summary>
''' DEFAULT
''' </summary>
''' <value></value>
''' <returns></returns>
''' <remarks></remarks>
Public ReadOnly Property AcceptEncoding() As String
Get
Return _accept_encoding
End Get
End Property
''' <summary>
''' DEFAULT
''' </summary>
''' <value></value>
''' <returns></returns>
''' <remarks></remarks>
Public ReadOnly Property Accept() As String
Get
Return _accept
End Get
End Property
''' <summary>
''' DEFAULT
''' </summary>
''' <value></value>
''' <returns></returns>
''' <remarks></remarks>
Public ReadOnly Property UserAgent() As String
Get
Return _userAgent
End Get
End Property
''' <summary>
''' DEFAULT
''' </summary>
''' <value></value>
''' <returns></returns>
''' <remarks></remarks>
Public ReadOnly Property AcceptCharset() As String
Get
Return _accept_charset
End Get
'Set(ByVal value As String)
' _accept_charset = value
'End Set
End Property
Public ReadOnly Property IsBusy() As Boolean
Get
Return _isBusy
End Get
End Property
Private ReadOnly Property WaitHandle() As RegisteredWaitHandle
Get
Return _waitHandle
End Get
End Property
Private Sub SetCompleted()
SyncLock Me
_cancel = False
_isBusy = False
End SyncLock
End Sub
Private Sub CheckBusy()
If _isBusy Then
Throw New NotSupportedException("1 seule opération asynchrone à la fois!")
End If
End Sub
Private Sub SetBusy()
SyncLock Me
CheckBusy()
_isBusy = True
End SyncLock
End Sub
Private Sub SetCancel()
SyncLock Me
_cancel = True
End SyncLock
End Sub
''' <summary>
''' Annule Lopération asynchrone en cour
''' </summary>
''' <remarks></remarks>
Public Sub CancelAsync()
If _isBusy Then
SetCancel()
End If
End Sub
''' <summary>
''' Récupère le type MIME d'un fichier
''' </summary>
''' <param name="szFileName">
''' Nom du fichier dont on veut le type MIME
''' </param>
''' <param name="forceDatabase">
''' true pour rechercher dans HKEY_CLASSES_ROOT\MIME\DataBase\Content Type (MIME -> extension),
''' false pour rechercher
''' dans HKEY_CLASSES_ROOT (extension -> MIME)
''' </param>
''' <returns>le type MIME ou null</returns>
Public Shared Function GetMIMEType(ByVal szFileName As String, ByVal forceDatabase As Boolean) As String
'type MIME renvoyé
Dim ret As String = Nothing
'extension du fichier avec "."
Dim szExt As String = Path.GetExtension(szFileName)
'valeur d'une valeur d'une clé de registre
Dim val As Object = Nothing
'si on veut lire dans HKEY_CLASSES_ROOT directement
If Not forceDatabase Then
'on essaie d'ouvrir la clé
Dim extKey As RegistryKey = Registry.ClassesRoot.OpenSubKey(szExt)
If extKey IsNot Nothing Then
'il peut y avoir une valeur "Content Type" contenant le type MIME mais ce n'est pas obligatoire
val = extKey.GetValue("Content Type")
extKey.Close()
End If
End If
'si on a déjà trouvé un type MIME et que l'on ne force pas la recherche dans HKEY_CLASSES_ROOT\MIME\DataBase\Content Type
If Not forceDatabase AndAlso val IsNot Nothing Then
Return val.ToString()
Else
'ouvre HKEY_CLASSES_ROOT\MIME\DataBase\Content Type
Dim contentTypeKey As RegistryKey = Registry.ClassesRoot.OpenSubKey("MIME\Database\Content Type")
'parcourt toutes les sous clés (types MIME connus)
For Each subkey As String In contentTypeKey.GetSubKeyNames()
'ouvre HKEY_CLASSES_ROOT\MIME\DataBase\Content Type\<type MIME>
Dim contentTypeSubKey As RegistryKey = contentTypeKey.OpenSubKey(subkey)
'récupère l'extension associée
Dim ext As Object = contentTypeSubKey.GetValue("Extension")
'si ca correspond on a trouvé
If ext IsNot Nothing AndAlso ext.ToString() = szExt Then
ret = subkey
Exit For
End If
contentTypeSubKey.Close()
Next
contentTypeKey.Close()
End If
Return ret
End Function
''' <summary>
''' Ajoute les entetes et les paires noms/Valeurs au fichier
''' </summary>
''' <param name="filepath">Chemin du fichier</param>
''' <param name="fileFormName">Nom de champ fichier dans la webform</param>
''' <param name="contenttype">Content type</param>
''' <param name="querystring">Paires Nom/Valeur</param>
''' <param name="boundary">Boundary</param>
''' <param name="DATAS">structures des données à envoyer</param>
''' <remarks></remarks>
Private Sub PrepareDatas3(ByVal filepath As String, ByVal fileFormName As String, ByVal contenttype As String, ByVal querystring As Specialized.NameValueCollection, ByVal boundary As String, ByRef DATAS As DatasToSend)
If (fileFormName Is Nothing) OrElse (fileFormName.Length = 0) Then
fileFormName = "file"
End If
If (contenttype Is Nothing) OrElse (contenttype.Length = 0) Then
contenttype = "application/octet-stream"
End If
Dim Startboundary As New System.Text.StringBuilder()
Startboundary.Append("--")
Startboundary.Append(boundary)
Startboundary.Append(vbCrLf)
Startboundary.Append("Content-Disposition: form-data; name=""")
Startboundary.Append(fileFormName)
Startboundary.Append("""; filename=""")
Startboundary.Append(filepath)
Startboundary.Append("""")
Startboundary.Append(vbCrLf)
Startboundary.Append("Content-Type: ")
Startboundary.Append(contenttype)
Startboundary.Append(vbCrLf)
Startboundary.Append(vbCrLf)
'ajoute les paires nom/valeurs
Dim Endboundary As New System.Text.StringBuilder()
If querystring IsNot Nothing Then
Endboundary.Append(vbCrLf)
For Each key As String In querystring.Keys
Endboundary.Append("--" & boundary)
Endboundary.Append(vbCrLf)
Endboundary.Append("Content-Disposition: form-data; name=" & Chr(34) & key & Chr(34))
Endboundary.Append(vbCrLf)
Endboundary.Append(vbCrLf)
Endboundary.Append(querystring.[Get](key))
Endboundary.Append(vbCrLf)
Next
End If
Endboundary.Append("--" & boundary & "--")
Endboundary.Append(vbCrLf)
Dim postHeader As String = Startboundary.ToString()
Dim postFooter As String = Endboundary.ToString
Dim postHeaderBytes As Byte() = System.Text.Encoding.UTF8.GetBytes(postHeader)
Dim postFooterBytes As Byte() = System.Text.Encoding.UTF8.GetBytes(postFooter)
''''OUVERTURE DU FICHIER'''''
Dim fsRead As New FileStream(filepath, FileMode.Open, FileAccess.Read)
DATAS.FileStream = fsRead
DATAS.HeaderBytes = postHeaderBytes
DATAS.FooterBytes = postFooterBytes
End Sub
Public Sub UploadFileAsync(ByVal uri As Uri, ByVal inputfile As String, ByVal cookieCol As CookieCollection, Optional ByVal userToken As Object = Nothing)
SyncLock Me
CheckBusy()
Dim cbArgs() As Object = New Object() {uri, inputfile, cookieCol, userToken}
Dim cb As New WaitCallback(AddressOf cbMethod)
ThreadPool.QueueUserWorkItem(cb, cbArgs)
End SyncLock
End Sub
Private Sub cbMethod(ByVal innerState As Object)
Dim args() As Object = CType(innerState, Object())
Dim datas() As Byte
Dim url As Uri = CType(args(0), Uri)
Dim inputfile As String = CType(args(1), String)
Dim cookiecol As CookieCollection = CType(args(2), CookieCollection)
Dim usertoken As Object = args(3)
Try
datas = UploadFile(url, inputfile, cookiecol)
If _cancel Then
'''CANCELLED'''
SetCompleted()
RaiseEvent UploadCompleted(New UploadCompletedArgs(Nothing, usertoken, Nothing, True))
Else
'''NORMAL'''
SetCompleted()
RaiseEvent UploadCompleted(New UploadCompletedArgs(datas, usertoken, Nothing, False))
End If
Catch ex As Exception
'''ERROR'''
SetCompleted()
RaiseEvent UploadCompleted(New UploadCompletedArgs(Nothing, usertoken, ex, False))
End Try
End Sub
Public Function UploadFile(ByVal url As Uri, ByVal inputfile As String, ByVal cookieCol As CookieCollection) As Byte()
SetBusy()
Return UploadFileCore(url, inputfile, cookieCol)
End Function
Private Function UploadFileCore(ByVal url As Uri, ByVal inputfile As String, ByVal cookieCol As CookieCollection) As Byte()
_contentType = GetMIMEType(inputfile, False)
Dim DATAS As New DatasToSend
PrepareDatas3(inputfile, "", _contentType, _querystring, _boundary, DATAS)
Dim w As HttpWebRequest = CType(WebRequest.Create(url), HttpWebRequest)
'''''HEADERZ'''''
w.Headers.Add(HttpRequestHeader.AcceptEncoding, _accept_encoding)
w.Headers.Add(HttpRequestHeader.AcceptLanguage, "fr")
w.Headers.Add(HttpRequestHeader.AcceptCharset, _accept_charset)
w.Headers.Add(HttpRequestHeader.CacheControl, "no-cache")
w.Headers.Add(HttpRequestHeader.KeepAlive, "true")
w.Headers.Add(HttpRequestHeader.KeepAlive, "300")
w.ContentType = "multipart/form-data; boundary=" & _boundary
w.ProtocolVersion = HttpVersion.Version11
w.ServicePoint.Expect100Continue = False
w.ServicePoint.ConnectionLeaseTimeout = System.Threading.Timeout.Infinite
w.Timeout = System.Threading.Timeout.Infinite
w.Referer = _referer
w.UserAgent = _userAgent
w.Accept = _accept
'''''COOKIES'''''
' w.CookieContainer = New CookieContainer()
' w.CookieContainer.Add(cookieCol)
w.Headers.Add(HttpRequestHeader.Cookie, "age_check=1")
''''''METHODE''''''
w.Method = "POST"
'''''OPTIONS'''''
' w.AutomaticDecompression = DecompressionMethods.GZip
w.AllowAutoRedirect = True
' w.SendChunked = True
'Set content lenght
w.ContentLength = DATAS.Length
_contentLength = DATAS.Length
Dim totalDataRead As Integer
Try
'Ouvre la requete
Dim rsSender As Stream = w.GetRequestStream
Dim dataRead(BufferSize - 1) As Byte
Dim nbRead As Integer
'ENVOI DE L'HEARDER
rsSender.Write(DATAS.HeaderBytes, 0, DATAS.HeaderBytes.Length)
'ENVOI DU FICHIER
Do
nbRead = DATAS.FileStream.Read(dataRead, 0, BufferSize)
totalDataRead += nbRead
rsSender.Write(dataRead, 0, nbRead)
RaiseEvent UploadProgress(totalDataRead, _contentLength)
Loop Until nbRead < BufferSize Or _cancel = True
'Close FILE, WEBREQUEST
DATAS.FileStream.Close()
If _cancel Then
w.Abort()
Exit Function
End If
'ENVOI DU FOOTER
rsSender.Write(DATAS.FooterBytes, 0, DATAS.FooterBytes.Length)
rsSender.Close()
''''Get RESPONSE''''
If Not _cancel Then
Dim wResponse As WebResponse = w.GetResponse
Dim rsResponce As Stream = (wResponse.GetResponseStream)
Dim datasResp As New List(Of Byte)
totalDataRead = 0
nbRead = rsResponce.Read(dataRead, 0, BufferSize)
While nbRead <> 0
totalDataRead += nbRead
ReDim Preserve dataRead(nbRead - 1)
datasResp.AddRange(dataRead)
ReDim Preserve dataRead(BufferSize - 1)
nbRead = rsResponce.Read(dataRead, 0, BufferSize)
End While
'Close RESPONSE
rsResponce.Close()
Dim tabResp(datasResp.Count - 1) As Byte
datasResp.CopyTo(tabResp)
Return tabResp
End If
Return Nothing
Catch ex As Exception
DATAS.FileStream.Close()
Throw ex
End Try
End Function
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim wb As New WebClient
Dim filePath As String = "c:\exemple.gif"
Dim ck As CookieCollection
UploadFile(New Uri("http://localhost:8080/up/upload.html"), filePath, ck)
End Sub
End Class
Public Class UploadCompletedArgs
Private _rez() As Byte
Private _error As System.Exception
Private _cancelled As Boolean
Private _userstate As Object
Sub New(ByVal rez() As Byte, ByVal userstate As Object, ByVal err As Exception, ByVal cancelled As Boolean)
_userstate = userstate
_error = err
_cancelled = cancelled
_rez = rez
End Sub
Public ReadOnly Property Cancelled() As Boolean
Get
Return _cancelled
End Get
End Property
Public ReadOnly Property Result() As Byte()
Get
Return _rez
End Get
End Property
Public ReadOnly Property Errors() As Exception
Get
Return _error
End Get
End Property
Public ReadOnly Property UserState() As Object
Get
Return _userstate
End Get
End Property
End Class |
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