(Perl) Download Google Contact Photo

Demonstrates how to download Google Contact's photo.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

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

# --------------------------------------------------------------------------------------------------------
# Note: The code for setting up the Chilkat REST object and making the initial connection can be done once.
# Once connected, the REST object may be re-used for many REST API calls.
# (It's a good idea to put the connection setup code in a separate function/subroutine.)
# --------------------------------------------------------------------------------------------------------

# It is assumed we previously obtained an OAuth2 access token.
# This example loads the JSON access token file 
# saved by this example: Get Google Contacts OAuth2 Access Token

$jsonToken = chilkat::CkJsonObject->new();
$success = $jsonToken->LoadFile("qa_data/tokens/googleContacts.json");
if ($success != 1) {
    print "Failed to load googleContacts.json" . "\r\n";
    exit;
}

$gAuth = chilkat::CkAuthGoogle->new();
$gAuth->put_AccessToken($jsonToken->stringOf("access_token"));

$rest = chilkat::CkRest->new();

# Connect using TLS.
$bAutoReconnect = 1;
$success = $rest->Connect("www.google.com",443,1,$bAutoReconnect);

# Provide the authentication credentials (i.e. the access token)
$rest->SetAuthGoogle($gAuth);

# ----------------------------------------------
# OK, the REST connection setup is completed..
# ----------------------------------------------

# To get the photo, send the following:

# 	GET /m8/feeds/photos/media/default/contactId

$rest->AddHeader("GData-Version","3.0");

$sbPath = chilkat::CkStringBuilder->new();
# Get the photo for the contact having contactId = "1ea2e4fe0ef24e09"
$contactId = "1ea2e4fe0ef24e09";
$sbPath->SetString("/m8/feeds/photos/media/default/{contactId}");
$numReplacements = $sbPath->Replace("{contactId}",$contactId);

$imageData = chilkat::CkBinData->new();
$success = $rest->FullRequestNoBodyBd("GET",$sbPath->getAsString(),$imageData);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# A 404 response indicates the contact has no photo.
# (We could've first fetched the contact information, parsed out the 
# photo etag, and then if no photo etag existed, we'd know the contact has no
# photo.  Or... we can just try to download the photo and if a 404 is received,
# we know there's no photo.  Much simpler.)
if ($rest->get_ResponseStatusCode() == 404) {
    print "This contact has no photo." . "\r\n";
    exit;
}

# A successful response will have a status code equal to 200.
if ($rest->get_ResponseStatusCode() != 200) {
    # If the response was not successful, then the response body
    # does not contain image data.  Instead it contains XML.
    $sbResponseBody = chilkat::CkStringBuilder->new();
    $sbResponseBody->AppendBd($imageData,"utf-8",0,0);

    print "response status code = " . $rest->get_ResponseStatusCode() . "\r\n";
    print "response status text = " . $rest->responseStatusText() . "\r\n";
    print "response header: " . $rest->responseHeader() . "\r\n";
    print "response body: " . $sbResponseBody->getAsString() . "\r\n";
    print "request startline: " . $rest->lastRequestStartLine() . "\r\n";
    print "request header: " . $rest->lastRequestHeader() . "\r\n";
    exit;
}

# Examine the content-type in the response header so we know what file
# extension to use (.jpg, .png, etc.)
$sbContentType = chilkat::CkStringBuilder->new();
$sbContentType->Append($rest->responseHdrByName("Content-Type"));

if ($sbContentType->ContentsEqual("image/jpeg",0) == 1) {
    $imageData->WriteFile("qa_output/contact_photo.jpg");
}

if ($sbContentType->ContentsEqual("image/png",0) == 1) {
    $imageData->WriteFile("qa_output/contact_photo.png");
}

print "Content-Type: " . $sbContentType->getAsString() . "\r\n";
print "Success." . "\r\n";