Line data    Source code

       1             : #include "fd_url.h"
       2             : 
       3             : fd_url_t *
       4             : fd_url_parse_cstr( fd_url_t *   const url,
       5             :                    char const * const url_str,
       6             :                    ulong        const url_str_len,
       7           0 :                    int *              opt_err ) {
       8           0 :   int err_[1];
       9           0 :   if( !opt_err ) opt_err = err_;
      10           0 :   *opt_err = FD_URL_SUCCESS;
      11             : 
      12           0 :   char const * const url_end = url_str+url_str_len;
      13             : 
      14           0 :   char const * const scheme     = url_str;
      15           0 :   ulong              scheme_len = 0UL;
      16           0 :   if( FD_UNLIKELY( url_str_len<8UL ) ) return NULL;
      17           0 :   if( fd_memeq( scheme, "http://", 7 ) ) {
      18           0 :     scheme_len = 7;
      19           0 :   } else if( fd_memeq( scheme, "https://", 8 ) ) {
      20           0 :     scheme_len = 8;
      21           0 :   } else {
      22           0 :     *opt_err = FD_URL_ERR_SCHEME;
      23           0 :     return NULL;
      24           0 :   }
      25             : 
      26           0 :   char const * const authority = scheme+scheme_len;
      27             : 
      28             :   /* Find beginning of path */
      29           0 :   char const * authority_end;
      30           0 :   for( authority_end = authority;
      31           0 :        authority_end < url_end && *authority_end!='/';
      32           0 :        authority_end++ ) {
      33           0 :     if( FD_UNLIKELY( *authority_end=='@' ) ) {
      34           0 :       *opt_err = FD_URL_ERR_USERINFO;
      35           0 :       return NULL; /* userinfo not supported */
      36           0 :     }
      37           0 :   }
      38           0 :   ulong const authority_len = (ulong)( authority_end-authority );
      39             : 
      40             :   /* Find port number */
      41           0 :   char const * const host     = authority;
      42           0 :   ulong              host_len = authority_len;
      43           0 :   char const *       port     = NULL;
      44           0 :   ulong              port_len = 0UL;
      45           0 :   for( ulong j=0UL; j<authority_len; j++ ) {
      46           0 :     if( authority[ j ]==':' ) {
      47           0 :       host_len = j;
      48           0 :       port     = authority    +j+1;
      49           0 :       port_len = authority_len-j-1;
      50           0 :       break;
      51           0 :     }
      52           0 :   }
      53             : 
      54           0 :   if( FD_UNLIKELY( host_len>255 ) ) {
      55           0 :     *opt_err = FD_URL_ERR_HOST_OVERSZ;
      56           0 :     return NULL;
      57           0 :   }
      58             : 
      59             : 
      60           0 :   *url = (fd_url_t){
      61           0 :     .scheme     = scheme,
      62           0 :     .scheme_len = scheme_len,
      63           0 :     .host       = host,
      64           0 :     .host_len   = host_len,
      65           0 :     .port       = port,
      66           0 :     .port_len   = port_len,
      67           0 :     .tail       = authority+authority_len,
      68           0 :     .tail_len   = (ulong)( url_end-(authority+authority_len) )
      69           0 :   };
      70             : 
      71           0 :   return url;
      72           0 : }