WebDriver UDF - Help & Support

Danp2 · March 2, 2018

This is the "General Help and Support" thread for the WebDriver UDF.

The UDF itself can be downloaded here.

So if you have any questions, suggestions or errors please post here.

mLipok · March 2, 2018

What's with this thread:

Danp2 · March 2, 2018

@mLipok This thread was created to handle the GH&S type issues. The other thread was getting "cluttered", so my intention is to move the general discussion here and the thread in the Examples section will be updated as any further development occurs.

Make sense?

Danp2 · March 2, 2018

@NguyenLe, this is a continuation of our discussion from the other thread.

If you examine the code for _WD_WaitElement, you will see that it just calls _WD_FindElement in a loop. Can you provide a simple example where _WD_FindElement doesn't find an element that is present on the page? Be sure to utilize a website that is accessible to everyone.

Also, it would be interesting to get your perspective on whether this issue could be related to the character encoding.

mrPuh · March 9, 2018

Hi for all!

Sorry for my English)

My task is use this legendary UDF from Danp2 for Opera browser.

Webdriver for Opera: https://github.com/operasoftware/operachromiumdriver/releases

I get code for Chrome. He work beautiful:

Spoiler

#include "wd_helper.au3"
#include "wd_core.au3"

Local $sDesiredCapabilities

$_WD_DEBUG = True

_WD_Option('Driver', 'chromedriver.exe')
_WD_Option('Port', 9515)
_WD_Option('DriverParams', '--log-path=' & @ScriptDir & '\chrome.log')

$sDesiredCapabilities = '{"capabilities": {"alwaysMatch": {"chromeOptions": {"w3c": true }}}}'
_WD_Startup()

$sSession = _WD_CreateSession($sDesiredCapabilities)
_WD_Navigate($sSession, "https://www.earnstations.com/")
_WD_WaitElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='btn']")
$sElement = _WD_FindElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='btn']")
_WD_ElementAction($sSession, $sElement, 'click')

Then I modify for Opera:

Spoiler

#include "wd_helper.au3"
#include "wd_core.au3"

Local $sDesiredCapabilities

$_WD_DEBUG = True

_WD_Option('Driver', 'operadriver.exe')
_WD_Option('Port', 9515)
_WD_Option('DriverParams', '--log-path=' & @ScriptDir & '\opera.log')

$sDesiredCapabilities = '{"capabilities": {"alwaysMatch": {"operaOptions": {"w3c": true }}}}'
_WD_Startup()

$sSession = _WD_CreateSession($sDesiredCapabilities)
_WD_Navigate($sSession, "https://www.earnstations.com/")
_WD_WaitElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='btn']")
$sElement = _WD_FindElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='btn']")
_WD_ElementAction($sSession, $sElement, 'click')

Error is "session not created exception: Missing or invalid capabilities":

Spoiler

_WDStartup: OS: WIN_10 WIN32_NT 16299 
_WDStartup: AutoIt: 3.3.14.2
_WDStartup: WD.au3: 0.1.0.9
_WDStartup: Driver: operadriver.exe
_WDStartup: Params: --log-path=E:\AutoIT\WebDriver\opera.log
_WDStartup: Port:   9515
__WD_Post: URL=HTTP://127.0.0.1:9515/session; $sData={"capabilities": {"alwaysMatch": {"operaOptions": {"w3c": true }}}}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"c913c1a4e33cad552b8a4a4fc0b53794","status":33,"value":{"message":"session not created exception: Missing or invalid capabilities\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_CreateSession: {"sessionId":"c913c1a4e33cad552b8a4a4fc0b53794","status":33,"value":{"message":"session not created exception: Missing or invalid capabilities\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_CreateSession ==> Webdriver Exception: session not created exception: Missing or invalid capabilities
  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)
__WD_Post: URL=HTTP://127.0.0.1:9515/session//url; $sData={"url":"https://www.earnstations.com/"}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_Navigate: {"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
__WD_Post: URL=HTTP://127.0.0.1:9515/session//element; $sData={"using":"xpath","value":"//a[@class='btn']"}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_FindElement: {"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_WaitElement ==> Success
__WD_Post: URL=HTTP://127.0.0.1:9515/session//element; $sData={"using":"xpath","value":"//a[@class='btn']"}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_FindElement: {"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
__WD_Post: URL=HTTP://127.0.0.1:9515/session//element/no such session
  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)/click; $sData={"id":"no such session
  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}
"E:\AutoIT\WebDriver\wd_core.au3" (1197) : ==> Subscript used on non-accessible variable.:
Local $hConnect = _WinHttpConnect($hOpen, $aURL[2], $_WD_PORT)
Local $hConnect = _WinHttpConnect($hOpen, $aURL^ ERROR

Opera don't launch.

Help please!

Danp2 · March 9, 2018

@mrPuh What about the Opera webdriver console? Can you post the output from there?

P.S. Add some error checking to your code. For example --

$sSession = _WD_CreateSession($sDesiredCapabilities)

If @error = $_WD_ERROR_Success Then
    _WD_Navigate($sSession, "https://www.earnstations.com/")
    _WD_WaitElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='btn']")
    $sElement = _WD_FindElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='btn']")
    _WD_ElementAction($sSession, $sElement, 'click')
EndIf

Danp2 · March 9, 2018

Also, have you tried with a very simple setup, ie:

$sDesiredCapabilities = '{"capabilities": { } }'

mrPuh · March 9, 2018

55 minutes ago, Danp2 said:

@mrPuh What about the Opera webdriver console? Can you post the output from there?

When I launch Chrome webdriver in console this message.

When I launch Opera webdriver in console this message and Opera don't launch.

When I set $sDesiredCapabilities = '{"capabilities": { } }' in AutoIT console this:

Spoiler

_WDStartup: OS: WIN_10 WIN32_NT 16299 
_WDStartup: AutoIt: 3.3.14.2
_WDStartup: WD.au3: 0.1.0.9
_WDStartup: Driver: operadriver.exe
_WDStartup: Params: --log-path=E:\AutoIT\WebDriver\opera.log
_WDStartup: Port:   9515
__WD_Post: URL=HTTP://127.0.0.1:9515/session; $sData={"capabilities": { } }
__WD_Post: StatusCode=200; ResponseText={"sessionId":"ec33cd4275f46e9933b25d862d7cd862","status":33,"value":{"message":"session not created exception: Missing or invalid capabilities\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_CreateSession: {"sessionId":"ec33cd4275f46e9933b25d862d7cd862","status":33,"value":{"message":"session not created exception: Missing or invalid capabilities\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_CreateSession ==> Webdriver Exception: session not created exception: Missing or invalid capabilities
  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)
__WD_Post: URL=HTTP://127.0.0.1:9515/session//url; $sData={"url":"https://www.earnstations.com/"}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_Navigate: {"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
__WD_Post: URL=HTTP://127.0.0.1:9515/session//element; $sData={"using":"xpath","value":"//a[@class='btn']"}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_FindElement: {"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_WaitElement ==> Success
__WD_Post: URL=HTTP://127.0.0.1:9515/session//element; $sData={"using":"xpath","value":"//a[@class='btn']"}
__WD_Post: StatusCode=200; ResponseText={"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
_WD_FindElement: {"sessionId":"","status":6,"value":{"message":"no such session\n  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}}
__WD_Post: URL=HTTP://127.0.0.1:9515/session//element/no such session
  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)/click; $sData={"id":"no such session
  (Driver info: OperaDriver=2.33 (3c26e9df3b0e313077a02a7d6ecab2264700bf10),platform=Windows NT 10.0.16299 x86_64)"}
"E:\AutoIT\WebDriver\wd_core.au3" (1197) : ==> Subscript used on non-accessible variable.:
Local $hConnect = _WinHttpConnect($hOpen, $aURL[2], $_WD_PORT)
Local $hConnect = _WinHttpConnect($hOpen, $aURL^ ERROR

Danp2 · March 9, 2018

How about the log file, opera.log? Have you looked there for any additional details on why this isn't working?

mrPuh · March 9, 2018

This is opera.log:

[0.430][INFO]: COMMAND InitSession {
   "capabilities": {

   }
}
[0.451][INFO]: RESPONSE InitSession session not created exception: Missing or invalid capabilities

Danp2 thanks for you participation to solve my problem.

Danp2 · March 9, 2018

15 minutes ago, mrPuh said:

[0.451][INFO]: RESPONSE InitSession session not created exception: Missing or invalid capabilities

It looks like you will need to keep trying different options until you find a working example.

You may want to review the following links f you haven't already done so --

https://github.com/operasoftware/operachromiumdriver/blob/master/docs/desktop.md

https://sites.google.com/a/chromium.org/chromedriver/capabilities#TOC-List-of-recognized-capabilities

mrPuh · March 14, 2018

I try many variants to set capabilities, but can't find working example.

Who can help solve this problem?

Edited March 14, 2018 by mrPuh

Jury · March 17, 2018

I've downloaded all the necessary files to the necessary directories (I think)

I'm trying to get this to work and think I've got part way there (firefox isn't my default browser)

I'm a little confused about using _WD_ or _WD as for example in _WD_Navigate or _WDNavigate this one seems to work _WDNavigate

I see in wd_core.au3 there is a parameter Global $_WD_DRIVER = "" ; Path to web driver executable

#include "wd_helper.au3"
#include "wd_core.au3"
Global $_WD_DRIVER
Local $sDesiredCapabilities
Local $iIndex
$sCommand ="C:\Program Files (x86)\Mozilla Firefox\"
$_WD_DRIVER = $sCommand & "firefox.exe"

SetupGecko()
_WDStartup()
$sSession = _WDCreateSession($sDesiredCapabilities)
_WDNavigate($sSession, 'http://google.com')
$sElement = _WDFindElement($sSession,$_WD_LOCATOR_ByXPath,"//a[@class='gsfi']")

If @error = $_WD_ERROR_Success Then
    _WDElementAction($sSession, $sElement, 'value','Hello')
EndIf

Func SetupGecko()
_WDOption('Driver', 'C:\Users\PC1\Documents\AutoIt_code\geckodriver.exe')
_WDOption('DriverParams', '--log trace')
_WDOption('Port', 4444)

$sDesiredCapabilities = '{"desiredCapabilities":{"javascriptEnabled":true,"nativeEvents":true,"acceptInsecureCerts":true}}'
EndFunc

I'm a little confused about using _WD_ or _WD as for example in _WD_Navigate or _WDNavigate this one seems to work _WDNavigate

The Console gives me:

_WDStartup: OS: WIN_10 WIN32_NT 16299
_WDStartup: AutoIt: 3.3.14.3
_WDStartup: WD.au3: 0.1.0.3
_WDStartup: Driver: C:\Users\PC1\Documents\AutoIt_code\geckodriver.exe
_WDStartup: Params: --log trace
_WDStartup: Port: 4444
__WD_Post: URL=HTTP://127.0.0.1:4444/session; $sData={"desiredCapabilities":{"javascriptEnabled":true,"nativeEvents":true,"acceptInsecureCerts":true}}
__WD_Post: StatusCode=500; ResponseText={"value":{"error":"session not created","message":"Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line","stacktrace":""}}
__WD_Post ==> Webdriver Exception: {"value":{"error":"session not created","message":"Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line","stacktrace":""}}
_WDCreateSession: {"value":{"error":"session not created","message":"Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line","stacktrace":""}}
_WDCreateSession ==> Webdriver Exception: HTTP status = 500
__WD_Post: URL=HTTP://127.0.0.1:4444/session//url; $sData={"url":"http://google.com"}
__WD_Post: StatusCode=404; ResponseText={"value":{"error":"unknown command","message":"POST /session//url did not match a known command","stacktrace":""}}
__WD_Post ==> Webdriver Exception: {"value":{"error":"unknown command","message":"POST /session//url did not match a known command","stacktrace":""}}
_WDNavigate: {"value":{"error":"unknown command","message":"POST /session//url did not match a known command","stacktrace":""}}
_WDNavigate ==> Webdriver Exception: HTTP status = 404
__WD_Post: URL=HTTP://127.0.0.1:4444/session//element; $sData={"using":"xpath","value":"//a[@class='gsfi']"}
__WD_Post: StatusCode=404; ResponseText={"value":{"error":"unknown command","message":"POST /session//element did not match a known command","stacktrace":""}}
__WD_Post ==> Webdriver Exception: {"value":{"error":"unknown command","message":"POST /session//element did not match a known command","stacktrace":""}}
_WDGetElement: {"value":{"error":"unknown command","message":"POST /session//element did not match a known command","stacktrace":""}}
_WDGetElement ==> No match: unknown command

Danp2 · March 17, 2018

5 minutes ago, Jury said:

I'm a little confused about using _WD_ or _WD as for example in _WD_Navigate or _WDNavigate this one seems to work _WDNavigate

The Console gives me:

_WDStartup: OS: WIN_10 WIN32_NT 16299
_WDStartup: AutoIt: 3.3.14.3
_WDStartup: WD.au3: 0.1.0.3

The latest version is 0.1.0.9. Please update to that and then try again.

https://github.com/Danp2/WebDriver/releases/latest

Danp2 · March 17, 2018

@Jury There was an updated version of geckodriver released earlier this week, so you should make sure that you have the latest version of it as well.

Also, if Firefox isn't installed in the default location, you'll need to provide the location of the executable. You can read more info about moz:firefoxOptions here.

Jury · March 18, 2018

Thanks I'd hoped this would do the trick (but didn't):

Func SetupGecko()
$ff = '--binary C:\Program Files (x86)\Mozilla Firefox\firefox.exe'
_WDOption('Driver', 'geckodriver')
_WDOption('DriverParams', $ff)
_WDOption('Port', 2828)

$sDesiredCapabilities = '{"desiredCapabilities":{"javascriptEnabled":true,"nativeEvents":true,"acceptInsecureCerts":true}}'
EndFunc

Danp2 · March 18, 2018

The DriverParams is used to pass parameters to the web driver. It's not for indicating the location of the browser executable. This would be done as part of DesiredCapabilities, which gets passed to _WD_CreateSession.

Edit: @Jury I just reread the flags section and see where they say this should work as you indicated. Can you post the contents from the Scite output window?

Edited March 18, 2018 by Danp2

Danp2 · March 18, 2018

3 hours ago, Jury said:

C:\Program Files (x86)\Mozilla Firefox\firefox.exe

So is this the 32-bit version of Firefox? Not sure that it matters, but are you running the Win32 or Win64 version of the Geckodriver?

CYCho · March 21, 2018

Thanks a lot, @Danp2. Your UDF works great. Now I have 2 questions. First, what is the syntax of $sDesiredCapbilities? For example, how do I integrate 'start-maximized' option in the $sDesiredCapabilities? The 2nd question is, what happens if I don't call _WD_DeleteSession() function at the end of my code? Will it create any prolem if I do it repeatedly, such as temporary files piling up in the computer? Currently I'm not calling this function because I want to keep the website open after the code is finished. I just call _WD_Shutdown(). Your answers will be greatly appreciated.

Danp2 · March 21, 2018

@CYCho You can read about the Capabilities implementation in the W3C specs. Note that each webdriver may support it's own unique options.

I am not aware of any issues with not calling _WD_DeleteSession.

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