(Visual FoxPro) Download a Zip from a URL and OpenBd. (No .zip file is created)

Demonstrates how to download a .zip from a URL, opens the Zip, and gets the contents of a file. No file is ever written.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loHttp
LOCAL loBd
LOCAL lnSuccess
LOCAL loZip
LOCAL loEntry
LOCAL lnLineEndingBehavior
LOCAL lcXmlStr
LOCAL loSb

* This example requires the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Http')
loHttp = CreateObject('Chilkat.Http')

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.BinData')
loBd = CreateObject('Chilkat.BinData')

* This URL is valid and can be tested...
lnSuccess = loHttp.QuickGetBd("http://chilkatdownload.com/example_data/hamlet.zip",loBd)
IF (loHttp.LastMethodSuccess <> 1) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loBd
    CANCEL
ENDIF

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Zip')
loZip = CreateObject('Chilkat.Zip')

* Open the zip from the bytes contained in bd.
lnSuccess = loZip.OpenBd(loBd)
IF (lnSuccess = 0) THEN
    ? loZip.LastErrorText
    RELEASE loHttp
    RELEASE loBd
    RELEASE loZip
    CANCEL
ENDIF

* Get the entry for the file we want..
loEntry = loZip.GetEntryByName("hamlet.xml")
IF (loZip.LastMethodSuccess <> 1) THEN
    ? loZip.LastErrorText
    RELEASE loHttp
    RELEASE loBd
    RELEASE loZip
    CANCEL
ENDIF

* Convert all line endings to CRLF (if needed)
lnLineEndingBehavior = 2
lcXmlStr = loEntry.UnzipToString(lnLineEndingBehavior,"utf-8")
IF (loEntry.LastMethodSuccess <> 1) THEN
    ? loEntry.LastErrorText
    RELEASE loEntry
    RELEASE loHttp
    RELEASE loBd
    RELEASE loZip
    CANCEL
ENDIF

* The XML in this case is about 274K, so let's just examine the last 20 lines...
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.StringBuilder')
loSb = CreateObject('Chilkat.StringBuilder')
loSb.Append(lcXmlStr)

? loSb.LastNLines(20,1)

RELEASE loEntry

RELEASE loHttp
RELEASE loBd
RELEASE loZip
RELEASE loSb