#!/usr/bin/env python3
# This is run by the "run-tests" script.
import unittest
import os
from test import WWWROOT, TestHelper, parse, random_bytes

class TestCustomHeaders(TestHelper):
    def setUp(self):
        self.datalen = 2345
        self.data = random_bytes(self.datalen)
        self.url = '/data.jpeg'
        self.not_found = '/not_found.jpeg'
        self.fn = WWWROOT + self.url
        with open(self.fn, 'wb') as f:
            f.write(self.data)

    def tearDown(self):
        os.unlink(self.fn)

    def test_custom_headers(self):
        resp = self.get(self.url)
        status, hdrs, body = parse(resp)
        self.assertContains(status, '200 OK')
        self.assertEqual(hdrs["Accept-Ranges"], "bytes")
        self.assertEqual(hdrs["Content-Length"], str(self.datalen))
        self.assertEqual(hdrs["Content-Type"], "image/jpeg")
        self.assertEqual(hdrs["X-Header-A"], "First Value")
        self.assertEqual(hdrs["X-Header-B"], "Second Value")
        self.assertContains(hdrs["Server"], "darkhttpd/")
        assert body == self.data, [self.url, resp, status, hdrs, body]
        self.assertEqual(body, self.data)

    def test_custom_headers_not_found(self):
        resp = self.get(self.not_found)
        status, hdrs, body = parse(resp)
        self.assertContains(status, '404 Not Found')
        self.assertContains(hdrs["Server"], "darkhttpd/")
        self.assertEqual(hdrs["X-Header-A"], "First Value")
        self.assertEqual(hdrs["X-Header-B"], "Second Value")

    def test_custom_headers_listing(self):
        resp = self.get("/")
        status, hdrs, body = parse(resp)
        self.assertContains(status, '200 OK')
        self.assertContains(body, '<a href="data.jpeg">data.jpeg</a>')
        self.assertContains(body, 'Generated by darkhttpd/')
        self.assertEqual(hdrs["Accept-Ranges"], "bytes")
        self.assertEqual(hdrs["Content-Type"], "text/html; charset=UTF-8")
        self.assertEqual(hdrs["X-Header-A"], "First Value")
        self.assertEqual(hdrs["X-Header-B"], "Second Value")
        self.assertContains(hdrs["Server"], "darkhttpd/")

    def test_custom_headers_range(self):
        resp = self.get(self.url, req_hdrs={'Range': 'bytes=0-99'})
        status, hdrs, body = parse(resp)
        self.assertContains(status, '206 Partial Content')
        self.assertEqual(hdrs["Accept-Ranges"], "bytes")
        self.assertEqual(hdrs["Content-Length"], '100')
        self.assertEqual(hdrs["Content-Type"], "image/jpeg")
        self.assertEqual(hdrs["X-Header-A"], "First Value")
        self.assertEqual(hdrs["X-Header-B"], "Second Value")
        self.assertContains(hdrs["Server"], "darkhttpd/")
        assert body == self.data[0:100], [self.url, resp, status, hdrs, body]
        self.assertEqual(body, self.data[0:100])

    def test_custom_header_if_modified_since(self):
        resp1 = self.get(self.url, method="HEAD")
        status, hdrs, body = parse(resp1)
        lastmod = hdrs["Last-Modified"]

        resp2 = self.get(self.url, method="GET", req_hdrs=
            {"If-Modified-Since": lastmod })
        status, hdrs, body = parse(resp2)
        self.assertContains(status, "304 Not Modified")
        self.assertEqual(hdrs["Accept-Ranges"], "bytes")
        self.assertFalse("Last-Modified" in hdrs)
        self.assertFalse("Content-Length" in hdrs)
        self.assertFalse("Content-Type" in hdrs)
        self.assertEqual(hdrs["X-Header-A"], "First Value")
        self.assertEqual(hdrs["X-Header-B"], "Second Value")

    def test_custom_header_forward(self):
        resp = self.get('/', req_hdrs={'Host': 'example.com'})
        status, hdrs, body = parse(resp)
        self.assertEqual(hdrs["X-Header-A"], "First Value")
        self.assertEqual(hdrs["X-Header-B"], "Second Value")
        self.assertContains(status, "301 Moved Permanently")
        expect = "http://www.example.com/"
        self.assertEqual(hdrs["Location"], expect)
        self.assertContains(body, expect)

if __name__ == '__main__':
    unittest.main()

# vim:set ts=4 sw=4 et: