int fHttpTrace;         /* Trace outbound HTTP requests */
  int fSystemTrace;       /* Trace calls to fossil_system(), --systemtrace */
  int fSshTrace;          /* Trace the SSH setup traffic */
  int fNoSync;            /* Do not do an autosync ever.  --nosync */
  char *zPath;            /* Name of webpage being served */
  char *zExtra;           /* Extra path information past the webpage name */
  char *zBaseURL;         /* Full text of the URL being served */
  const char *zAltBase;   /* Alternative URL root.  --baseurl */
  char *zTop;             /* Parent directory of zPath */
  const char *zContentType;  /* The content type of the input HTTP request */
  int iErrPriority;       /* Priority of current error message */
  char *zErrMsg;          /* Text of an error message */
  int sslNotAvailable;    /* SSL is not available.  Do not redirect to https: */
  Blob cgiIn;             /* Input to an xfer www method */
  int cgiOutput;          /* Write error and status messages to CGI */

/*
** Set the g.zBaseURL value to the full URL for the toplevel of
** the fossil tree.  Set g.zTop to g.zBaseURL without the
** leading "http://" and the host and port.
**
** The g.zBaseURL is normally set based on HTTP_HOST and SCRIPT_NAME
** environment variables.  However, if g.zAltBase is not NULL then it
** is the argument to the --baseurl option command-line option and
** g.zBaseURL and g.zTop is set from that instead.
**
** If g.zAltBase is set, then zRepoName may be a repository name (with a
** leading slash ** but without the .fossil) with is concatenated to the
** root.
*/
static void set_base_url(const char* zRepoName){
  int i;
  const char *zHost;
  const char *zMode;
  const char *zCur;

  fossil_free(g.zBaseURL);
  if( g.zAltBase ){
    int i, n, c;
    if (!zRepoName) zRepoName = "";
    if (zRepoName[0] == '/') zRepoName++;
    g.zTop = g.zBaseURL = mprintf("%s%s", g.zAltBase, zRepoName);
    if( memcmp(g.zTop, "http://", 7)!=0 && memcmp(g.zTop,"https://",8)!=0 ){
      fossil_fatal("argument to --baseurl should be 'http://host/path'"
                   " or 'https://host/path'");
    }
    for(i=n=0; (c = g.zTop[i])!=0; i++){
      if( c=='/' ){
        n++;

  ** repository based on the first element of PATH_INFO and open it.
  */
  zPathInfo = PD("PATH_INFO","");
  if( !g.repositoryOpen ){
    char *zRepo, *zToFree;
    const char *zOldScript = PD("SCRIPT_NAME", "");
    char *zNewScript;
    char *zRepoName;
    int j, k;
    i64 szFile;

    i = zPathInfo[0]!=0;
    while( 1 ){
      while( zPathInfo[i] && zPathInfo[i]!='/' ){ i++; }
      zRepo = zToFree = mprintf("%s%.*s.fossil",g.zRepositoryName,i,zPathInfo);

          cgi_set_status(404, "not found");
          cgi_reply();
        }
        return;
      }
      break;
    }
    /* Rebuild the base URL to add the repository name to the end. */
    zRepoName = mprintf("%.*s", i, zPathInfo);
    set_base_url(zRepoName);
    fossil_free(zRepoName);
    zNewScript = mprintf("%s%.*s", zOldScript, i, zPathInfo);
    cgi_replace_parameter("PATH_INFO", &zPathInfo[i+1]);
    zPathInfo += i;
    cgi_replace_parameter("SCRIPT_NAME", zNewScript);
    db_open_repository(zRepo);
    if( g.fHttpTrace ){
      fprintf(stderr,
          "# repository: [%s]\n"
          "# new PATH_INFO = [%s]\n"
          "# new SCRIPT_NAME = [%s]\n",
          zRepo, zPathInfo, zNewScript);
    }
  }
  else
    set_base_url(0);

  /* Find the page that the user has requested, construct and deliver that
  ** page.
  */
  if( g.zContentType && memcmp(g.zContentType, "application/x-fossil", 20)==0 ){
    zPathInfo = "/xfer";
  }

  if( zPathInfo==0 || zPathInfo[0]==0
      || (zPathInfo[0]=='/' && zPathInfo[1]==0) ){
#ifdef FOSSIL_ENABLE_JSON
    if(g.json.isJsonMode){
      json_err(FSL_JSON_E_RESOURCE_NOT_FOUND,NULL,1);
      fossil_exit(0);
    }

**
** See also: cgi, server, winsrv
*/
void cmd_http(void){
  const char *zIpAddr;
  const char *zNotFound;
  const char *zHost;

  const char *zFileGlob;

  /* The winhttp module passes the --files option as --files-urlenc with
  ** the argument being URL encoded, to avoid wildcard expansion in the 
  ** shell.  This option is for internal use and is undocumented.
  */
  zFileGlob = find_option("files-urlenc",0,1);
  if( zFileGlob ){
    char *z = mprintf("%s", zFileGlob);
    dehttpize(z);
    zFileGlob = z;
  }else{
    zFileGlob = find_option("files",0,1);
  }
  zNotFound = find_option("notfound", 0, 1);
  g.useLocalauth = find_option("localauth", 0, 0)!=0;
  g.sslNotAvailable = find_option("nossl", 0, 0)!=0;
  g.zAltBase = find_option("baseurl", 0, 1);
  set_base_url(0);
  if( find_option("https",0,0)!=0 ) cgi_replace_parameter("HTTPS","on");
  zHost = find_option("host", 0, 1);
  if( zHost ) cgi_replace_parameter("HTTP_HOST",zHost);
  g.cgiOutput = 1;
  g.httpIn = stdin;
  g.httpOut = stdout;
  if( g.argc!=2 && g.argc!=3 && g.argc!=6 ){
    fossil_fatal("no repository specified");
  }
  g.fullHttpReply = 1;
  if( g.argc==6 ){
    g.httpIn = fossil_fopen(g.argv[3], "rb");
    g.httpOut = fossil_fopen(g.argv[4], "wb");
    zIpAddr = g.argv[5];
  }else{


    zIpAddr = 0;
  }
  find_server_repository(0);
  g.zRepositoryName = enter_chroot_jail(g.zRepositoryName);
  cgi_handle_http_request(zIpAddr);
  process_one_web_page(zNotFound, glob_create(zFileGlob));
}

  int iPort, mxPort;        /* Range of TCP ports allowed */
  const char *zPort;        /* Value of the --port option */
  const char *zBrowser;     /* Name of web browser program */
  char *zBrowserCmd = 0;    /* Command to launch the web browser */
  int isUiCmd;              /* True if command is "ui", not "server' */
  const char *zNotFound;    /* The --notfound option or NULL */
  int flags = 0;            /* Server flags */

  const char *zFileGlob;    /* Static content must match this */

#if defined(_WIN32)
  const char *zStopperFile;    /* Name of file used to terminate server */
  zStopperFile = find_option("stopper", 0, 1);
#endif

  zFileGlob = find_option("files", 0, 1);
  g.thTrace = find_option("th-trace", 0, 0)!=0;
  g.useLocalauth = find_option("localauth", 0, 0)!=0;
  if( g.thTrace ){
    blob_zero(&g.thLog);
  }
  zPort = find_option("port", "P", 1);
  zNotFound = find_option("notfound", 0, 1);
  g.zAltBase = find_option("baseurl", 0, 1);

  set_base_url(0);

  if( g.argc!=2 && g.argc!=3 ) usage("?REPOSITORY?");
  isUiCmd = g.argv[1][0]=='u';
  if( isUiCmd ){
    flags |= HTTP_SERVER_LOCALHOST;
    g.useLocalauth = 1;
  }
  find_server_repository(isUiCmd && zNotFound==0);