runserver: reimplemented http server without libevent

yeah, this patch implements a "complete" http server for static files.
It is not the best code possible, and would be easily DDoS'able if used
in production, as it spawns a thread for each request, without limiting.

I'm sickish and this is the best code I can deliver now. At least it
works! ;)

1 files changed, 163 insertions, 0 deletions

diff --git a/tests/blogc-runserver/check_httpd_utils.c b/tests/blogc-runserver/check_httpd_utils.c
new file mode 100644
index 0000000..18376a2
--- /dev/null
+++ b/tests/blogc-runserver/check_httpd_utils.c
@@ -0,0 +1,163 @@
+/*
+ * blogc: A blog compiler.
+ * Copyright (C) 2015-2016 Rafael G. Martins <rafael@rafaelmartins.eng.br>
+ *
+ * This program can be distributed under the terms of the BSD License.
+ * See the file LICENSE.
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+#include <stdlib.h>
+#include <string.h>
+#include "../../src/common/utils.h"
+#include "../../src/blogc-runserver/httpd-utils.h"
+
+
+ssize_t
+__wrap_read(int fd, void *buf, size_t count)
+{
+    assert_int_equal(fd, mock_type(int));
+    const char *mock_buf = mock_type(const char*);
+    strcpy(buf, mock_buf);
+    assert_int_equal(count, READLINE_BUFFER_SIZE);
+    return strlen(mock_buf) > 0 ? strlen(mock_buf) : -1;
+}
+
+
+static void
+test_readline(void **state)
+{
+    char *t;
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola");
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola1\nguda\nxd");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola1");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola2\rguda\rxd");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola2");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola3\r\nguda\r\nxd");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola3");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola");
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "guda");
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "");
+    t = br_readline(1234);
+    assert_string_equal(t, "bolaguda");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola1");
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola\nguda");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola1bola");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola2");
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola\rguda");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola2bola");
+    free(t);
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola3");
+    will_return(__wrap_read, 1234);
+    will_return(__wrap_read, "bola\r\nguda");
+    t = br_readline(1234);
+    assert_string_equal(t, "bola3bola");
+    free(t);
+}
+
+
+static void
+test_hextoi(void **state)
+{
+    assert_int_equal(br_hextoi('0'), 0);
+    assert_int_equal(br_hextoi('1'), 1);
+    assert_int_equal(br_hextoi('2'), 2);
+    assert_int_equal(br_hextoi('3'), 3);
+    assert_int_equal(br_hextoi('4'), 4);
+    assert_int_equal(br_hextoi('5'), 5);
+    assert_int_equal(br_hextoi('6'), 6);
+    assert_int_equal(br_hextoi('7'), 7);
+    assert_int_equal(br_hextoi('8'), 8);
+    assert_int_equal(br_hextoi('9'), 9);
+    assert_int_equal(br_hextoi('a'), 10);
+    assert_int_equal(br_hextoi('b'), 11);
+    assert_int_equal(br_hextoi('c'), 12);
+    assert_int_equal(br_hextoi('d'), 13);
+    assert_int_equal(br_hextoi('e'), 14);
+    assert_int_equal(br_hextoi('f'), 15);
+    assert_int_equal(br_hextoi('A'), 10);
+    assert_int_equal(br_hextoi('B'), 11);
+    assert_int_equal(br_hextoi('C'), 12);
+    assert_int_equal(br_hextoi('D'), 13);
+    assert_int_equal(br_hextoi('E'), 14);
+    assert_int_equal(br_hextoi('g'), -1);
+    assert_int_equal(br_hextoi('G'), -1);
+    assert_int_equal(br_hextoi('-'), -1);
+}
+
+
+static void
+test_urldecode(void **state)
+{
+    for (size_t i = 0; i < 128; i++) {
+        char *t = bc_strdup_printf("%%%02x", i);
+        char *r = br_urldecode(t);
+        assert_int_equal(r[0], i);
+        assert_int_equal(r[1], 0);
+        free(r);
+        free(t);
+    }
+    char *r = br_urldecode("%Ab");
+    assert_string_equal(r, "\xab");
+    free(r);
+    r = br_urldecode("%xb");
+    assert_string_equal(r, "%xb");
+    free(r);
+    r = br_urldecode("%C3%BC");
+    assert_string_equal(r, "\xc3\xbc");
+    free(r);
+}
+
+
+static void
+test_get_extension(void **state)
+{
+    assert_null(br_get_extension("bola"));
+    assert_string_equal(br_get_extension("bola.txt"), "txt");
+    assert_string_equal(br_get_extension("bola.txt.jpg"), "jpg");
+    assert_null(br_get_extension("bola.txt/foo"));
+    assert_string_equal(br_get_extension("bola.txt/foo.jpg"), "jpg");
+}
+
+
+int
+main(void)
+{
+    const UnitTest tests[] = {
+        unit_test(test_readline),
+        unit_test(test_hextoi),
+        unit_test(test_urldecode),
+        unit_test(test_get_extension),
+    };
+    return run_tests(tests);
+}