}
    fossil_free(zFileUuid);
  }
  return 1;
}

/*
** AJAX route /fileedit?ajax=content
**
** Query parameters:
**
** filename=FILENAME
** checkin=CHECKIN_NAME
**
** User must have Write access to use this page.
**
** Responds with the raw content of the given page. On error it
** produces a JSON response as documented for fileedit_ajax_error().
*/
static void fileedit_ajax_content(void){
  const char * zFilename = 0;
  const char * zRev = 0;
  int vid, frid;
  Blob content = empty_blob;
  const char * zMime;

  fileedit_get_fnci_args( &zFilename, &zRev );

    }
  }
  cgi_set_content_type(zMime);
  cgi_set_content(&content);
}

/*
** AJAX route /fileedit?ajax=preview
**
** Required query parameters:
**
** filename=FILENAME
** content=text
**
** Optional query parameters:

** iframe.
**
** User must have Write access to use this page.
**
** Responds with the HTML content of the preview. On error it produces
** a JSON response as documented for fileedit_ajax_error().
*/
static void fileedit_ajax_preview(void){
  const char * zFilename = 0;
  const char * zContent = P("content");
  int renderMode = atoi(PD("render_mode","0"));
  int ln = atoi(PD("ln","0"));
  int iframeHeight = atoi(PD("iframe_height","40"));
  Blob content = empty_blob;

  fileedit_get_fnci_args( &zFilename, 0 );
  if(!fileedit_ajax_boostrap()
     || !fileedit_ajax_check_filename(zFilename)){
    return;
  }
  cgi_set_content_type("text/html");
  blob_init(&content, zContent, -1);
  fileedit_render_preview(&content, zFilename,
                          ln ? FE_PREVIEW_LINE_NUMBERS : 0,
                          renderMode, iframeHeight);
}

/*
** AJAX route /fileedit?ajax=diff
**
** Required query parameters:
**
** filename=FILENAME
** content=text
** checkin=checkin version
**
** Optional parameters:
**
** sbs=integer (1=side-by-side or 0=unified, default=0)
**
** User must have Write access to use this page.
**
** Responds with the HTML content of the diff. On error it produces a
** JSON response as documented for fileedit_ajax_error().
*/
static void fileedit_ajax_diff(void){
  /*
  ** Reminder: we only need the filename to perform valdiation
  ** against fileedit_is_editable(), else this route could be
  ** abused to get diffs against content disallowed by the
  ** whitelist.
  */
  const char * zFilename = 0;

end_fail:
#undef fail
  fossil_free(zFileUuid);
  return rc ? rc : 500;
}

/*
** AJAX route /fileedit?ajax=filelist
**
** Fetches a JSON-format list of leaves and/or filenames for use in
** creating a file selection list in /fileedit. It has different modes
** of operation depending on its arguments:
**
** 'leaves': just fetch a list of open leaf versions, in this
** format:

**   checkin: UUID,
**   editableFiles: [ filename1, ... filenameN ] // sorted by name
** }
**
** On error it produces a JSON response as documented for
** fileedit_ajax_error().
*/
static void fileedit_ajax_filelist(void){
  const char * zCi = PD("checkin",P("ci"));
  Blob sql = empty_blob;
  Stmt q = empty_Stmt;
  int i = 0;

  if(!fileedit_ajax_boostrap()){
    return;

    db_finalize(&q);
  }else{
    fileedit_ajax_error(500, "Unhandled URL argument.");
  }
}

/*
** AJAX route /fileedit?ajax=commit
**
** Required query parameters:
** 
** filename=FILENAME
** checkin=Parent checkin UUID
** content=text
** comment=text

**  manifest: text of manifest,
**  dryRun: bool
** }
**
** On error it produces a JSON response as documented for
** fileedit_ajax_error().
*/
static void fileedit_ajax_commit(void){
  Blob err = empty_blob;      /* Error messages */
  Blob manifest = empty_blob; /* raw new manifest */
  CheckinMiniInfo cimi;       /* checkin state */
  int rc;                     /* generic result code */
  int newVid = 0;             /* new version's RID */
  char * zNewUuid = 0;        /* newVid's UUID */

  if(!fileedit_ajax_boostrap()){
    return;
  }
  db_begin_transaction();
  CheckinMiniInfo_init(&cimi);
  rc = fileedit_setup_cimi_from_p(&cimi, &err);
  if(0!=rc){
    fileedit_ajax_error(rc,"%b",&err);
    goto end_cleanup;

  Blob endScript = empty_blob;          /* Script code to run at the
                                           end. This content will be
                                           combined into a single JS
                                           function call, thus each
                                           entry must end with a
                                           semicolon. */
  Stmt stmt = empty_Stmt;
  const char *zAjax = P("ajax");

  if(0!=zAjax){
    if(0==strcmp("content",zAjax)){
      fileedit_ajax_content();
    }else if(0==strcmp("preview",zAjax)){
      fileedit_ajax_preview();
    }else if(0==strcmp("filelist",zAjax)){
      fileedit_ajax_filelist();
    }else if(0==strcmp("diff",zAjax)){
      fileedit_ajax_diff();
    }else if(0==strcmp("commit",zAjax)){
      fileedit_ajax_commit();
    }else{
      fileedit_ajax_error(500, "Unhandled 'ajax' value.");
    }
    return;
  }
  login_check_credentials();
  if( !g.perm.Write ){
    login_needed(g.anon.Write);
    return;
  }
  db_begin_transaction();
  CheckinMiniInfo_init(&cimi);

  style_header("File Editor");
  /* As of this point, don't use return or fossil_fatal(). Write any
  ** error in (&err) and goto end_footer instead so that we can be
  ** sure to do any cleanup and end the transaction cleanly.
  */
  if(fileedit_setup_cimi_from_p(&cimi, &err)==0){
    zFilename = cimi.zFilename;