Setup project skeletonHEADmaster

1 files changed, 72 insertions, 0 deletions

diff --git a/gencookie.c b/gencookie.c
new file mode 100644
index 0000000..9a71b3e
--- /dev/null
+++ b/gencookie.c
@@ -0,0 +1,72 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include "jwt.h"
+#include <cjson/cJSON.h>
+#include <libweb/http.h>
+#include <sodium.h>
+#include <errno.h>
+#include <stddef.h>
+#include <string.h>
+#include <time.h>
+
+char *gencookie(const char *const name, const char *const key)
+{
+    char *ret = NULL, *sname = NULL, *c = NULL, *jwt = NULL;
+    unsigned char dkey[crypto_auth_hmacsha256_KEYBYTES];
+    size_t len;
+    cJSON *j = NULL;
+    time_t t = time(NULL);
+    struct tm tm;
+
+    if (t == (time_t)-1)
+    {
+        fprintf(stderr, "%s: time(2): %s\n", __func__, strerror(errno));
+        goto end;
+    }
+
+    /* Set 5-year lifetime for cookies. */
+    t += 5 * 365 * 24 * 60 * 60;
+
+    if (!localtime_r(&t, &tm))
+    {
+        fprintf(stderr, "%s: localtime_r(3): %s\n", __func__, strerror(errno));
+        goto end;
+    }
+    else if (!(j = cJSON_CreateObject()))
+    {
+        fprintf(stderr, "%s: cJSON_CreateObject failed\n", __func__);
+        goto end;
+    }
+    else if (!cJSON_AddStringToObject(j, "name", name))
+    {
+        fprintf(stderr, "%s: cJSON_AddStringToObject failed\n", __func__);
+        goto end;
+    }
+    else if (sodium_hex2bin(dkey, sizeof dkey, key, strlen(key), NULL, &len,
+        NULL))
+    {
+        fprintf(stderr, "%s: sodium_hex2bin failed\n", __func__);
+        goto end;
+    }
+    else if (!(jwt = jwt_encode(j, dkey, sizeof dkey)))
+    {
+        fprintf(stderr, "%s: jwt_encode failed\n", __func__);
+        goto end;
+    }
+    else if (!(c = http_cookie_create(name, jwt, &tm)))
+    {
+        fprintf(stderr, "%s: http_cookie_create failed\n", __func__);
+        goto end;
+    }
+
+    ret = c;
+
+end:
+    if (!ret)
+        free(c);
+
+    free(jwt);
+    free(sname);
+    cJSON_Delete(j);
+    return ret;
+}