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authorLars-Dominik Braun <lars@6xq.net>2011-06-12 13:33:30 +0200
committerLars-Dominik Braun <lars@6xq.net>2011-06-13 20:19:38 +0200
commit58b1579f56a4fc49cef4f0e3a8b87e392b5fc376 (patch)
tree423d178e6e5043777626072344a350a9d858ec6c /src/libwaitress
parent09355b9299ddfa80465aff01b94e9d4e3f5c1961 (diff)
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waitress: Base64 encoder added
Diffstat (limited to 'src/libwaitress')
-rw-r--r--src/libwaitress/waitress.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/libwaitress/waitress.c b/src/libwaitress/waitress.c
index ec711b8..3c48616 100644
--- a/src/libwaitress/waitress.c
+++ b/src/libwaitress/waitress.c
@@ -90,6 +90,111 @@ char *WaitressUrlEncode (const char *in) {
return out;
}
+/* base64 encode data
+ * @param encode this
+ * @return malloc'ed string
+ */
+static char *WaitressBase64Encode (const char *in) {
+ assert (in != NULL);
+
+ size_t inLen = strlen (in);
+ char *out, *outPos;
+ const char *inPos;
+ static const char *alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz0123456789+/";
+ const size_t alphabetLen = strlen (alphabet);
+
+ /* worst case is 1.333 */
+ out = malloc ((inLen * 2 + 1) * sizeof (*out));
+ if (out == NULL) {
+ return NULL;
+ }
+ outPos = out;
+ inPos = in;
+
+ while (inLen >= 3) {
+ uint8_t idx;
+
+ idx = ((*inPos) >> 2) & 0x3f;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ idx = ((*inPos) & 0x3) << 4;
+ ++inPos;
+ idx |= ((*inPos) >> 4) & 0xf;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ idx = ((*inPos) & 0xf) << 2;
+ ++inPos;
+ idx |= ((*inPos) >> 6) & 0x3;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ idx = (*inPos) & 0x3f;
+ ++inPos;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ inLen -= 3;
+ }
+
+ switch (inLen) {
+ case 2: {
+ uint8_t idx;
+
+ idx = ((*inPos) >> 2) & 0x3f;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ idx = ((*inPos) & 0x3) << 4;
+ ++inPos;
+ idx |= ((*inPos) >> 4) & 0xf;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ idx = ((*inPos) & 0xf) << 2;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ *outPos = '=';
+ ++outPos;
+ break;
+ }
+
+ case 1: {
+ uint8_t idx;
+
+ idx = ((*inPos) >> 2) & 0x3f;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ idx = ((*inPos) & 0x3) << 4;
+ assert (idx < alphabetLen);
+ *outPos = alphabet[idx];
+ ++outPos;
+
+ *outPos = '=';
+ ++outPos;
+
+ *outPos = '=';
+ ++outPos;
+ break;
+ }
+ }
+ *outPos = '\0';
+
+ return out;
+}
+
/* Split http url into host, port and path
* @param url
* @param returned url struct
@@ -709,6 +814,18 @@ static void compareUrl (const char *url, const char *user,
}
}
+/* compare two strings
+ */
+void compareStr (const char *result, const char *expected) {
+ if (!streq (result, expected)) {
+ printf ("FAIL for %s, result was %s\n", expected, result);
+ } else {
+ printf ("OK for %s\n", expected);
+ }
+}
+
+/* test entry point
+ */
int main () {
/* WaitressSplitUrl tests */
compareUrl ("http://www.example.com/", NULL, NULL, "www.example.com", NULL,
@@ -737,6 +854,17 @@ int main () {
compareUrl ("http:///", NULL, NULL, "", NULL, "");
compareUrl ("http://foo:bar@", "foo", "bar", "", NULL, NULL);
+ /* WaitressBase64Encode tests */
+ compareStr (WaitressBase64Encode ("M"), "TQ==");
+ compareStr (WaitressBase64Encode ("Ma"), "TWE=");
+ compareStr (WaitressBase64Encode ("Man"), "TWFu");
+ compareStr (WaitressBase64Encode ("The quick brown fox jumped over the lazy dog."),
+ "VGhlIHF1aWNrIGJyb3duIGZveCBqdW1wZWQgb3ZlciB0aGUgbGF6eSBkb2cu");
+ compareStr (WaitressBase64Encode ("The quick brown fox jumped over the lazy dog"),
+ "VGhlIHF1aWNrIGJyb3duIGZveCBqdW1wZWQgb3ZlciB0aGUgbGF6eSBkb2c=");
+ compareStr (WaitressBase64Encode ("The quick brown fox jumped over the lazy do"),
+ "VGhlIHF1aWNrIGJyb3duIGZveCBqdW1wZWQgb3ZlciB0aGUgbGF6eSBkbw==");
+
return EXIT_SUCCESS;
}
#endif /* TEST */