Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 209 insertions, 0 deletions

diff --git a/netwerk/test/unit/test_plaintext_sniff.js b/netwerk/test/unit/test_plaintext_sniff.js
new file mode 100644
index 0000000000..fb9620e04c
--- /dev/null
+++ b/netwerk/test/unit/test_plaintext_sniff.js
@@ -0,0 +1,209 @@
+// Test the plaintext-or-binary sniffer
+
+"use strict";
+
+const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
+
+// List of Content-Type headers to test.  For each header we have an array.
+// The first element in the array is the Content-Type header string.  The
+// second element in the array is a boolean indicating whether we allow
+// sniffing for that type.
+var contentTypeHeaderList = [
+  ["text/plain", true],
+  ["text/plain; charset=ISO-8859-1", true],
+  ["text/plain; charset=iso-8859-1", true],
+  ["text/plain; charset=UTF-8", true],
+  ["text/plain; charset=unknown", false],
+  ["text/plain; param", false],
+  ["text/plain; charset=ISO-8859-1; param", false],
+  ["text/plain; charset=iso-8859-1; param", false],
+  ["text/plain; charset=UTF-8; param", false],
+  ["text/plain; charset=utf-8", false],
+  ["text/plain; charset=utf8", false],
+  ["text/plain; charset=UTF8", false],
+  ["text/plain; charset=iSo-8859-1", false],
+];
+
+// List of response bodies to test.  For each response we have an array. The
+// first element in the array is the body string.  The second element in the
+// array is a boolean indicating whether that string should sniff as binary.
+var bodyList = [["Plaintext", false]];
+
+// List of possible BOMs
+var BOMList = [
+  "\xFE\xFF", // UTF-16BE
+  "\xFF\xFE", // UTF-16LE
+  "\xEF\xBB\xBF", // UTF-8
+  "\x00\x00\xFE\xFF", // UCS-4BE
+  "\x00\x00\xFF\xFE", // UCS-4LE
+];
+
+// Build up bodyList.  The things we treat as binary are ASCII codes 0-8,
+// 14-26, 28-31.  That is, the control char range, except for tab, newline,
+// vertical tab, form feed, carriage return, and ESC (this last being used by
+// Shift_JIS, apparently).
+function isBinaryChar(ch) {
+  return (
+    (0 <= ch && ch <= 8) || (14 <= ch && ch <= 26) || (28 <= ch && ch <= 31)
+  );
+}
+
+// Test chars on their own
+var i;
+for (i = 0; i <= 127; ++i) {
+  bodyList.push([String.fromCharCode(i), isBinaryChar(i)]);
+}
+
+// Test that having a BOM prevents plaintext sniffing
+var j;
+for (i = 0; i <= 127; ++i) {
+  for (j = 0; j < BOMList.length; ++j) {
+    bodyList.push([BOMList[j] + String.fromCharCode(i, i), false]);
+  }
+}
+
+// Test that having a BOM requires at least 4 chars to kick in
+for (i = 0; i <= 127; ++i) {
+  for (j = 0; j < BOMList.length; ++j) {
+    bodyList.push([
+      BOMList[j] + String.fromCharCode(i),
+      BOMList[j].length == 2 && isBinaryChar(i),
+    ]);
+  }
+}
+
+function makeChan(headerIdx, bodyIdx) {
+  var chan = NetUtil.newChannel({
+    uri:
+      "http://localhost:" +
+      httpserv.identity.primaryPort +
+      "/" +
+      headerIdx +
+      "/" +
+      bodyIdx,
+    loadUsingSystemPrincipal: true,
+  }).QueryInterface(Ci.nsIHttpChannel);
+
+  chan.loadFlags |= Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS;
+
+  return chan;
+}
+
+function makeListener(headerIdx, bodyIdx) {
+  var listener = {
+    onStartRequest: function test_onStartR(request) {
+      try {
+        var chan = request.QueryInterface(Ci.nsIChannel);
+
+        Assert.equal(chan.status, Cr.NS_OK);
+
+        var type = chan.contentType;
+
+        var expectedType =
+          contentTypeHeaderList[headerIdx][1] && bodyList[bodyIdx][1]
+            ? "application/x-vnd.mozilla.guess-from-ext"
+            : "text/plain";
+        if (expectedType != type) {
+          do_throw(
+            "Unexpected sniffed type '" +
+              type +
+              "'.  " +
+              "Should be '" +
+              expectedType +
+              "'.  " +
+              "Header is ['" +
+              contentTypeHeaderList[headerIdx][0] +
+              "', " +
+              contentTypeHeaderList[headerIdx][1] +
+              "].  " +
+              "Body is ['" +
+              bodyList[bodyIdx][0].toSource() +
+              "', " +
+              bodyList[bodyIdx][1] +
+              "]."
+          );
+        }
+        Assert.equal(expectedType, type);
+      } catch (e) {
+        do_throw("Unexpected exception: " + e);
+      }
+
+      throw Components.Exception("", Cr.NS_ERROR_ABORT);
+    },
+
+    onDataAvailable: function test_ODA() {
+      do_throw("Should not get any data!");
+    },
+
+    onStopRequest: function test_onStopR(request, status) {
+      // Advance to next test
+      ++headerIdx;
+      if (headerIdx == contentTypeHeaderList.length) {
+        headerIdx = 0;
+        ++bodyIdx;
+      }
+
+      if (bodyIdx == bodyList.length) {
+        do_test_pending();
+        httpserv.stop(do_test_finished);
+      } else {
+        doTest(headerIdx, bodyIdx);
+      }
+
+      do_test_finished();
+    },
+  };
+
+  return listener;
+}
+
+function doTest(headerIdx, bodyIdx) {
+  var chan = makeChan(headerIdx, bodyIdx);
+
+  var listener = makeListener(headerIdx, bodyIdx);
+
+  chan.asyncOpen(listener);
+
+  do_test_pending();
+}
+
+function createResponse(headerIdx, bodyIdx, metadata, response) {
+  response.setHeader(
+    "Content-Type",
+    contentTypeHeaderList[headerIdx][0],
+    false
+  );
+  response.bodyOutputStream.write(
+    bodyList[bodyIdx][0],
+    bodyList[bodyIdx][0].length
+  );
+}
+
+function makeHandler(headerIdx, bodyIdx) {
+  var f = function handlerClosure(metadata, response) {
+    return createResponse(headerIdx, bodyIdx, metadata, response);
+  };
+  return f;
+}
+
+var httpserv;
+function run_test() {
+  // disable on Windows for now, because it seems to leak sockets and die.
+  // Silly operating system!
+  // This is a really nasty way to detect Windows.  I wish we could do better.
+  if (mozinfo.os == "win") {
+    //failing eslint no-empty test
+  }
+
+  httpserv = new HttpServer();
+
+  for (i = 0; i < contentTypeHeaderList.length; ++i) {
+    for (j = 0; j < bodyList.length; ++j) {
+      httpserv.registerPathHandler("/" + i + "/" + j, makeHandler(i, j));
+    }
+  }
+
+  httpserv.start(-1);
+
+  doTest(0, 0);
+}