feat: configure api key using env var

include/http/types.h

@@ -1,9 +1,9 @@
 #ifndef LANDER_HTTP_TYPES
 #define LANDER_HTTP_TYPES
 
-#include <sys/types.h>
-#include <stdio.h>
 #include <stdbool.h>
+#include <stdio.h>
+#include <sys/types.h>
 
 // Array mapping the http_request_method enum to strings
 extern const char *http_method_names[];

src/http/types.c

@@ -2,9 +2,7 @@
 
 #include "http/types.h"
 
-http_body *http_body_init() {
-  return calloc(sizeof(http_body), 1);
-}
+http_body *http_body_init() { return calloc(sizeof(http_body), 1); }
 
 void http_body_reset(http_body *body) {
   if (body->type == http_body_file) {

src/http_loop/http_loop_steps.c

@@ -76,8 +76,8 @@ bool http_loop_step_body_to_buf(event_loop_conn *conn) {
 
   size_t bytes_to_copy = MIN(conn->rbuf_size - conn->rbuf_read,
                              ctx->req.body.expected_len - ctx->req.body.len);
-  memcpy(&ctx->req.body.buf[ctx->req.body.len],
-         &conn->rbuf[conn->rbuf_read], bytes_to_copy);
+  memcpy(&ctx->req.body.buf[ctx->req.body.len], &conn->rbuf[conn->rbuf_read],
+         bytes_to_copy);
   ctx->req.body.len += bytes_to_copy;
   conn->rbuf_read += bytes_to_copy;
 
@@ -114,7 +114,8 @@ bool http_loop_step_auth(event_loop_conn *conn) {
     struct phr_header *header = &ctx->req.headers[i];
 
     if ((strncmp("X-Api-Key", header->name, header->name_len) == 0) &&
-        (strncmp(header->value, ctx->g->api_key, header->value_len) == 0)) {
+        (strncmp(header->value, ctx->g->api_key, header->value_len) == 0) &&
+        strlen(ctx->g->api_key) == header->value_len) {
       return true;
     }
   }

src/main.c

@@ -3,9 +3,18 @@
 #include "lander.h"
 #include "log.h"
 
+#define ENV(var, env_var)                                                      \
+  const char *var = getenv(env_var);                                           \
+  if (var == NULL) {                                                           \
+    critical(1, "Missing environment variable %s", env_var);                   \
+  }                                                                            \
+  var = strdup(var);
+
 int main() {
   setvbuf(stdout, NULL, _IONBF, 0);
 
+  ENV(api_key, "LANDER_API_KEY");
+
   info("Initializing trie");
 
   Trie *trie;
@@ -21,7 +30,7 @@ int main() {
   gctx->trie = trie;
   gctx->routes = lander_routes;
   gctx->route_count = sizeof(lander_routes) / sizeof(lander_routes[0]);
-  gctx->api_key = "test";
+  gctx->api_key = api_key;
   event_loop *el = http_loop_init(gctx);
 
   http_loop_run(el, 18080);