Parse Error in windows

[samiksha-singla]

Library is creatin following command on window
"C:\www\myproject\vendor\kriansa\h2p\bin/win32/phantomjs.exe" "C:\www\myproject\vendor\kriansa\h2p\bin/converter.js" "{ destination : C:\Windows\TEMP\14b6e6edc209b6e731bdbc79976a9430438409ae.tmp , request :{ uri : C:\Windows\TEMP\127ef8f78c335d9af694a9cef0423541dd17a256.html , method : GET }, orientation : Portrait , format : A3 , zoomFactor :1, allowParseCustomFooter :false, allowParseCustomHeader :false, border : 1cm , header :null, footer :null}"
When I run this command it is giving me parse error . Seems json is not getting created properly

[RaXaR]

I also got this error. I took the JSON string you pasted above tried it over at http://codebeautify.org/jsonviewer. I had to convert it to the below to get it to validate:

{ 
    "destination": "C:\\\\Windows\\\\TEMP\\\\14b6e6edc209b6e731bdbc79976a9430438409ae.tmp", 
    "request": { 
        "uri": "C:\\\\Windows\\\\TEMP\\\\127ef8f78c335d9af694a9cef0423541dd17a256.html", 
        "method": "GET"
    }, 
    "orientation": "Portrait", 
    "format": "A3", 
    "zoomFactor": 1, 
    "allowParseCustomFooter": false, 
    "allowParseCustomHeader":false, 
    "border": "1cm", 
    "header": null, 
    "footer": null
}

Not sure yet if I can transfer this to the H2P library

EDIT: Had to update the backslashes to \\ to work with JSON.parse().

[kriansa]

Hey @RaXaR , can you test setting the temp folder to a different one?

[RaXaR]

Hi Yeah, i tried using a folder inside the webroot but the same error appears:

Error while executing PhantomJS: "SyntaxError: JSON Parse error: Expected '}'" 

To my eye it looks like an issue with escapeshellarg() being used in PhatomJS::transform() and then the parsing inside the converter.js at JSON.parse().

However, I can't figure out how to debug inside coverter.js so that I can see what strings it receives.

[kriansa]

You can try using console.log() inside converter.js and fetching its
result inside PHP, can you do that?

Daniel Pereira

2015-11-13 10:30 GMT-02:00 RaXaR [email protected]:

Hi Yeah, i tried using a folder inside the webroot but the same error
appears:

Error while executing PhantomJS: "SyntaxError: JSON Parse error: Expected '}'"

To my eye it looks like an issue with escapeshellarg() being used in
PhatomJS::transform() and then the parsing inside the converter.js at
JSON.parse().

However, I can't figure out how to debug inside coverter.js so that I can
see what strings it receives.

—
Reply to this email directly or view it on GitHub
#14 (comment).

[RaXaR]

Nope, I don't know how to get the output of console.log to PHP?

[RaXaR]

Ok I resolved the parse error on windows with:

// /Converter/PhantomJS.php
    protected function transform(Request $origin, $destination)
    {
        $request = self::fixRequestKeyNames($origin);

        $args = array(
            'destination' => $destination,
            'request' => $request,
        ) + $this->options;

        // If on Windows then do not use escapeshellarg();
        $os = php_uname('s');
        switch ($os) {
            case 'Windows NT':
                $json = json_encode($args);
                $json = str_replace('"', '\"', $json);
                $json = '"' . $json . '"';
                $command = $this->getBinPath() . ' ' . $json;
                break;
            default:
                $command = $this->getBinPath() . ' ' . escapeshellarg(json_encode($args));
        }

        $result = json_decode(trim(shell_exec($command)));

        if (!$result->success) {
            throw new Exception('Error while executing PhantomJS: "' . $result->response . '"');
        }

        return true;
    }

I tested with:

            $pdfDir = 'C:' . DIRECTORY_SEPARATOR . 'wamp' . DIRECTORY_SEPARATOR . 'www' . DIRECTORY_SEPARATOR;
            $converter = new PhantomJS();
            $input = 'http://www.google.com/';
            // Convert destination accepts H2P\TempFile or string with the path to save the file
            $converter->convert($input, $pdfDir . 'page.pdf');

---

When I use new Tempfile() for input then I get:

Error while executing PhantomJS: "Unable to access the URI! (Make sure you're using a .html extension if you're trying to use a local file)"

Tested with:

            $pdfDir = 'C:' . DIRECTORY_SEPARATOR . 'wamp' . DIRECTORY_SEPARATOR . 'www' . DIRECTORY_SEPARATOR;
            $converter = new PhantomJS();
            $input = new TempFile('<b>test string to pdf</b>', 'html'); // Make sure the 2nd parameter is 'html'
            // Convert destination accepts H2P\TempFile or string with the path to save the file
            $converter->convert($input, $pdfDir . 'page.pdf');

[RaXaR]

Note: Updated previous comment with a few fixes.

[Seb33300]

I had aa similar problem today on windows.

I had to use your updates transform() function and to had this fix:
$json = str_replace('C:', 'file:///c:', $json);

PhantomJS is not able to access fils on filesystem if url is not prefixed by file:///

[kriansa]

I've just merged a PR that fixes that issues on Windows.

Can you guys test using master branch? (or dev-master for those using composer)

[Seb33300]

The PR fixed the issue with file://.

But not the original issue about the parse Error in windows.

[kriansa]

I thought that the parsing error was directly related to the file:// issue - my bad.

[Seb33300]

No, on windows, the parsing error is related to the escapeshellarg function:

On Windows, escapeshellarg() instead removes percent signs, replaces double quotes with spaces and adds double quotes around the string.

So the command line is generated with an invalid json.