I am encountering an issue when trying to upload an image from an app that has been converted into a base64 string to a Ruby on Rails server.
The app is developed using Titanium. However, after retrieving and decoding the image string back into an image, there seems to be no image displayed. The function in the app responsible for converting and sending the image is as follows:
function postActivity() {
//hide keyboard on submit
Ti.UI.Android.hideSoftKeyboard();
var imgFile = Ti.Filesystem.getFile(img);
var imgString = imgFile.read();
var mybase = Ti.Utils.base64encode(imgString);
sendData('POST', 'create_post.json', true, jsonToForm({
"post[text1]" : $.txt1.value,
"post[number1]" : $.number1.value,
"post[time]" : (60 * parseInt($.txtHrs.value)) + parseInt($.txtMins.value),
"post[comment]" : $.txtComments.value,
"post[image64]" : mybase.toString()
}), function(response) {
alert('Activity Added.');
Ti.App.fireEvent('getFeed');
Ti.App.fireEvent('showFeed');
Ti.API.info('Response: ' + response.message);
}, function(error) {
alert('There was an error. Please try again later.');
});
}
Upon arrival at the server, the data is then directly inserted into the posts table along with other relevant information using the following code snippet:
@user = User.find(session[:user_id])
@post = @user.posts.create(params[:post].merge(:val1 => @val1, :val2 => @val2, :group_id => @groupId ).permit(:val3, :val4, :time, :val5, :val5, :group_id, :comment, <strong>:image64</strong>))
To inspect what was transmitted from the app, the image encoded as a base64 string was saved to a file. Here is an excerpt of it:
/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDACgcHiMeGSgjISMtKygwPGRBPDc3PHtYXUlkkYCZlo+AjIqgtObDoKrarYqMyP/L2u71////m8H////6/+b9//j/2wBDASstLTw1PHZBQXb4pYyl+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj/wAAThe value of post[image64] upon arrival and storage in the database appears like this:
/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDACgcHiMeGSgjISMtKygwPGRBPDc3PHtYXUlkkYCZlo AjIqgtObDoKrarYqMyP/L2u71////m8H////6/ b9//j/2wBDASstLTw1PHZBQXb4pYyl Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj4 Pj/wAAIt should be noted that the transmitted string contains Pj4+Pj4+ while at the server's end it becomes Pj4 Pj4. It seems like the '+' character has been omitted during this conversion. This alteration to the string could be causing the problem alongside possibly other modifications.
Has anyone encountered this issue before? How can I ensure that the string sent to the server and stored in the database remain unaltered?
Thank you.