7.0 refactor

src/url.c

@@ -0,0 +1,81 @@
+#include "url.h"
+#include <stdlib.h>
+
+struct url {
+  int key, user, pass, host, port, uri, end;
+};
+
+int mg_url_is_ssl(const char *url) {
+  return strncmp(url, "wss:", 4) == 0 || strncmp(url, "https:", 6) == 0 ||
+         strncmp(url, "mqtts:", 6) == 0 || strncmp(url, "ssl:", 4) == 0 ||
+         strncmp(url, "tls:", 4) == 0;
+}
+
+static struct url urlparse(const char *url) {
+  int i;
+  struct url u;
+  memset(&u, 0, sizeof(u));
+  for (i = 0; url[i] != '\0'; i++) {
+    if (i > 0 && url[i - 1] == '/' && url[i] == '/') {
+      u.host = i + 1;
+      u.port = 0;
+    } else if (url[i] == ':') {
+      u.port = i + 1;
+    } else if (url[i] == '@') {
+      u.user = u.host;
+      u.pass = u.port;
+      u.host = i + 1;
+      u.port = 0;
+    } else if (u.host && !u.uri && url[i] == '/') {
+      u.uri = i;
+    }
+  }
+  u.end = i;
+#if 0
+  printf("[%s] %d %d %d %d %d\n", url, u.user, u.pass, u.host, u.port, u.uri);
+#endif
+  return u;
+}
+
+struct mg_str mg_url_host(const char *url) {
+  struct url u = urlparse(url);
+  int n =
+      u.port ? u.port - u.host - 1 : u.uri ? u.uri - u.host : u.end - u.host;
+  return mg_str_n(url + u.host, n);
+}
+
+const char *mg_url_uri(const char *url) {
+  struct url u = urlparse(url);
+  return u.uri ? url + u.uri : "/";
+}
+
+unsigned short mg_url_port(const char *url) {
+  struct url u = urlparse(url);
+  unsigned short port = 0;
+  if (memcmp(url, "http:", 5) == 0) port = 80;
+  if (memcmp(url, "wss:", 4) == 0 || memcmp(url, "https:", 6) == 0) port = 443;
+  if (memcmp(url, "mqtt:", 5) == 0) port = 1883;
+  if (memcmp(url, "mqtts:", 6) == 0) port = 8883;
+  if (u.port) port = atoi(url + u.port);
+  return port;
+}
+
+struct mg_str mg_url_user(const char *url) {
+  struct url u = urlparse(url);
+  struct mg_str s = mg_str("");
+  if (u.user && (u.pass || u.host)) {
+    int n = u.pass ? u.pass - u.user - 1 : u.host - u.user - 1;
+    s = mg_str_n(url + u.user, n);
+  }
+  return s;
+}
+
+struct mg_str mg_url_pass(const char *url) {
+  struct url u = urlparse(url);
+  struct mg_str s = mg_str("");
+  if (u.pass && u.host) {
+    int n = u.host - u.pass - 1;
+    s = mg_str_n(url + u.pass, n);
+  }
+  return s;
+}