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URLDownloadToFile fails with 0x800c0008 (INET_E_DOWNLOAD_FAILURE) depending on length of URL [duplicate]

由 孤者浪人 提交于 2021-02-10 18:23:08
问题 This question already has answers here : What is the maximum URL length you can pass to the Wininet function, HttpOpenRequest? (3 answers) Closed 2 years ago . I'm aware there is a similar question here. However my symptoms differ. There seems to be some kind of URL length restriction in place that I couldn't find documented. The limit seens to be 2084 (sic! not 2048!) characters in the URL. The easiest repro is just a console application with this code: #include "stdafx.h" #include "urlmon.h

URLDownloadToFile fails with 0x800c0008 (INET_E_DOWNLOAD_FAILURE) depending on length of URL [duplicate]

由 霸气de小男生 提交于 2021-02-10 18:19:29
问题 This question already has answers here : What is the maximum URL length you can pass to the Wininet function, HttpOpenRequest? (3 answers) Closed 2 years ago . I'm aware there is a similar question here. However my symptoms differ. There seems to be some kind of URL length restriction in place that I couldn't find documented. The limit seens to be 2084 (sic! not 2048!) characters in the URL. The easiest repro is just a console application with this code: #include "stdafx.h" #include "urlmon.h

How to do “Public Declare Ansi Function” in Visual Basic 6.0?

由 眉间皱痕 提交于 2019-12-25 01:19:31
问题 I'm trying to convert this VB.NET / C# declaration into a Visual Basic 6.0 one, having trouble (included is the C# version, converting to VB.NET not a problem): [DllImport("urlmon.dll", CharSet = CharSet.Ansi)] private static extern int UrlMkSetSessionOption( int dwOption, string pBuffer, int dwBufferLength, int dwReserved); As you can see, in Visual Basic/C# we have that CharSet=CharSet.Ansi part, which I don't know how to do in Visual Basic 6.0 - I tried adding the A at the end of the Alias

urlmon.dll FindMimeFromData() works perfectly on 64bit desktop/console but generates errors on ASP.NET

由 不羁岁月 提交于 2019-12-18 04:03:22
问题 I am creating a library of utilities to be used both in desktop environment in a web environment. It contains several features that I believe are often repeated in my applications, including utility to get the mime type of a file by its content (not the extension). The files that I'll have to check are the most common (jpg, png, pdf, txt) so I chose to use the external method FindMimeFromData (link above) Using .NET, how can you find the mime type of a file based on the file signature not the

pythoncom.CoCreateInstance can't create IZoneIdentifier; the interface is missing from registry too despite being documented in MSDN

由 时光怂恿深爱的人放手 提交于 2019-12-12 04:14:34
问题 I'm trying to implement Manipulating the zone identifier to specify where a file was download from – The Old New Thing - MSDN blogs in Python. At CoCreateInstance : pythoncom.CoCreateInstance( pywintypes.IID('{0968e258-16c7-4dba-aa86-462dd61e31a3}'), #CLSID_PersistentZoneIdentifier None,pythoncom.CLSCTX_ALL, pywintypes.IID('{cd45f185-1b21-48e2-967b-ead743a8914e}')) #IID_IZoneIdentifier I get an error: TypeError: There is no interface object registered that supports this IID (No stacktrace as

How can I add an extra http header using IHTTPNegotiate?

由 混江龙づ霸主 提交于 2019-12-06 05:11:30
问题 How can I add an extra header to the request using IHTTPNegotiate? I added the interface but functions BeginningTransaction & OnResponse never get called. TNameSpaceHandler = class(TComObject, IInternetProtocol, IHttpNegotiate) ... function BeginningTransaction(szURL, szHeaders: LPCWSTR; dwReserved: DWORD; out szAdditionalHeaders: LPWSTR): HResult; stdcall; function OnResponse(dwResponseCode: DWORD; szResponseHeaders, szRequestHeaders: LPCWSTR; out szAdditionalRequestHeaders: LPWSTR): HResult

How can I add an extra http header using IHTTPNegotiate?

由 陌路散爱 提交于 2019-12-04 11:26:51
How can I add an extra header to the request using IHTTPNegotiate? I added the interface but functions BeginningTransaction & OnResponse never get called. TNameSpaceHandler = class(TComObject, IInternetProtocol, IHttpNegotiate) ... function BeginningTransaction(szURL, szHeaders: LPCWSTR; dwReserved: DWORD; out szAdditionalHeaders: LPWSTR): HResult; stdcall; function OnResponse(dwResponseCode: DWORD; szResponseHeaders, szRequestHeaders: LPCWSTR; out szAdditionalRequestHeaders: LPWSTR): HResult; stdcall; ... end; I'm silently assuming you're intercepting traffic by both implementing

urlmon.dll FindMimeFromData() works perfectly on 64bit desktop/console but generates errors on ASP.NET

由 久未见 提交于 2019-11-29 04:04:24
I am creating a library of utilities to be used both in desktop environment in a web environment. It contains several features that I believe are often repeated in my applications, including utility to get the mime type of a file by its content (not the extension). The files that I'll have to check are the most common (jpg, png, pdf, txt) so I chose to use the external method FindMimeFromData (link above) Using .NET, how can you find the mime type of a file based on the file signature not the extension The method works well, except for the two incorrect mime type of JPG ( image/pjpg ) and PNG
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