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const CC = Components.Constructor;
const BinaryInputStream = CC(
"@mozilla.org/binaryinputstream;1",
"nsIBinaryInputStream",
"setInputStream"
);
function handleRequest(request, response) {
var query = {};
request.queryString.split("&").forEach(function (val) {
var idx = val.indexOf("=");
query[val.slice(0, idx)] = unescape(val.slice(idx + 1));
});
var responseBody;
// Store fullhash in the server side.
if ("list" in query && "fullhash" in query) {
// In the server side we will store:
// 1. All the full hashes for a given list
// 2. All the lists we have right now
// data is separate by '\n'
let list = query.list;
let hashes = getState(list);
let hash = atob(query.fullhash);
hashes += hash + "\n";
setState(list, hashes);
let lists = getState("lists");
if (!lists.includes(list)) {
lists += list + "\n";
setState("lists", lists);
}
return;
// gethash count return how many gethash request received.
// This is used by client to know if a gethash request is triggered by gecko
} else if ("gethashcount" == request.queryString) {
let counter = getState("counter");
responseBody = counter == "" ? "0" : counter;
} else {
let body = new BinaryInputStream(request.bodyInputStream);
let avail;
let bytes = [];
while ((avail = body.available()) > 0) {
Array.prototype.push.apply(bytes, body.readByteArray(avail));
}
let counter = getState("counter");
counter = counter == "" ? "1" : (parseInt(counter) + 1).toString();
setState("counter", counter);
responseBody = parseV2Request(bytes);
}
response.setHeader("Content-Type", "text/plain", false);
response.write(responseBody);
}
function parseV2Request(bytes) {
var request = String.fromCharCode.apply(this, bytes);
var [HEADER, PREFIXES] = request.split("\n");
var [PREFIXSIZE, LENGTH] = HEADER.split(":").map(val => {
return parseInt(val);
});
var ret = "";
for (var start = 0; start < LENGTH; start += PREFIXSIZE) {
getState("lists")
.split("\n")
.forEach(function (list) {
var completions = getState(list).split("\n");
for (var completion of completions) {
if (completion.indexOf(PREFIXES.substr(start, PREFIXSIZE)) == 0) {
ret += list + ":1:32\n";
ret += completion;
}
}
});
}
return ret;
}
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