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Implement async JS #4

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Merged
LukasReschke merged 1 commit into from
Jun 24, 2016
Merged

Implement async JS #4

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130 changes: 80 additions & 50 deletions index.php
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Original file line number Diff line number Diff line change
Expand Up @@ -634,71 +634,101 @@ function addStepText(text) {
document.getElementById('progress').innerHTML = previousValue + "\r" + text;
}

function performStep(number) {
function performStep(number, callback) {
var httpRequest = new XMLHttpRequest();
httpRequest.open("POST", window.location.href, false);
httpRequest.open("POST", window.location.href);
httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
httpRequest.onreadystatechange = function () {
if (httpRequest.readyState != 4) { // 4 - request done
return;
}

if (httpRequest.status != 200) {
// failure
}

callback(JSON.parse(httpRequest.responseText));
};
httpRequest.send("step="+number);
var data = httpRequest.responseText;
return JSON.parse(data);
}

// Step 1: Check for expected files
addStepText('Start: Check for expected files');
var response = performStep(1);
if(response.proceed === true) {
addStepText('Success: Check for expected files has succeeded');

// Step 2: Check for write permissions
addStepText('Start: Check for write permissions');
response = performStep(2);
if(response.proceed === true) {
addStepText('Success: Check for write permissions');
var performStepCallbacks = {
1: function(response) {
if(response.proceed === true) {
addStepText('Success: Check for expected files has succeeded');

// Step 2: Check for write permissions
addStepText('Start: Check for write permissions');
performStep(2, performStepCallbacks[2])
} else {
addStepText('Error: Check for all expected files failed. The following extra files have been found:');
response['response'].forEach(function(file) {
addStepText("\t"+file);
});
}
},
2: function(response) {
if(response.proceed === true) {
addStepText('Success: Check for write permissions');

response = performStep(3);
performStep(3, performStepCallbacks[3]);
} else {
addStepText('Error: Check for all write permissions failed. The following places can not be written to:');
response['response'].forEach(function(file) {
addStepText("\t"+file);
});
}
},
3: function(response) {
if(response.proceed === true) {
// TODO: Put into loop and make non-rendering blocking
addStepText('Enabled maintenance mode');

addStepText('Start: Create backup');
performStep(4);
addStepText('Done: Create backup');

addStepText('Start: Download update');
performStep(5);
addStepText('Done: Download update');

addStepText('Start: Extract update');
performStep(6);
addStepText('Done: Extract update');

addStepText('Start: Replace Entry Points');
performStep(7);
addStepText('Done: Replace Entry Points');

addStepText('Start: Delete old files');
performStep(8);
addStepText('Done: Delete old files');

addStepText('Start: Move new files in place');
performStep(9);
addStepText('Done: Move new files in place');
addStepText('!!! Update done !!!');
performStep(4, performStepCallbacks[4]);
} else {
addStepText('Error: Could not enable maintenance mode in config.php');
}
} else {
addStepText('Error: Check for all write permissions failed. The following places can not be written to:');
response['response'].forEach(function(file) {
addStepText("\t"+file);
});
},
4: function(response) {
addStepText('Done: Create backup');

addStepText('Start: Download update');
performStep(5, performStepCallbacks[5]);
},
5: function(response) {
addStepText('Done: Download update');

addStepText('Start: Extract update');
performStep(6, performStepCallbacks[6]);
},
6: function(response) {
addStepText('Done: Extract update');

addStepText('Start: Replace Entry Points');
performStep(7, performStepCallbacks[7]);
},
7: function(response) {
addStepText('Done: Replace Entry Points');

addStepText('Start: Delete old files');
performStep(8, performStepCallbacks[8]);
},
8: function(response) {
addStepText('Done: Delete old files');

addStepText('Start: Move new files in place');
performStep(9, performStepCallbacks[9]);
},
9: function(response) {
addStepText('Done: Move new files in place');
addStepText('!!! Update done !!!');
}
} else {
addStepText('Error: Check for all expected files failed. The following extra files have been found:');
response['response'].forEach(function(file) {
addStepText("\t"+file);
});
}
};

// Step 1: Check for expected files
addStepText('Start: Check for expected files');
performStep(1, performStepCallbacks[1]);
</script>
<?php endif; ?>

Expand Down