}

/*
** Given a mimetype, return its common name.
*/
static const char *mimetype_common_name(const char *zMimetype){
  int i;
  for(i=6; i>=0; i-=3){
    if( zMimetype && fossil_strcmp(zMimetype, azStyles[i])==0 ){
      return azStyles[i+1];
    }
  }
  return azStyles[1];
}

** URL: /wikiappend?name=PAGENAME&mimetype=MIMETYPE
**
** Append text to the end of a wiki page.
*/
void wikiappend_page(void){
  char *zTag;
  int rid = 0;

  const char *zPageName;
  const char *zUser;
  const char *zMimetype;
  int goodCaptcha = 1;
  const char *zFormat;
  Manifest *pWiki = 0;
  int isSandbox;

  login_check_credentials();
  if( !g.perm.ApndWiki ){
    login_needed(g.anon.ApndWiki);
    return;
  }
  zPageName = PD("name","");
  zMimetype = wiki_filter_mimetypes(P("mimetype"));
  if( check_name(zPageName) ) return;
  isSandbox = is_sandbox(zPageName);
  if(!isSandbox){
    zTag = mprintf("wiki-%s", zPageName);
    rid = db_int(0,
      "SELECT rid FROM tagxref"
      " WHERE tagid=(SELECT tagid FROM tag WHERE tagname=%Q)"
      " ORDER BY mtime DESC", zTag
    );
    free(zTag);
    pWiki = rid ? manifest_get(rid, CFTYPE_WIKI, 0) : 0;
    if( !pWiki ){
      fossil_redirect_home();
      return;
    }

    zMimetype = wiki_filter_mimetypes(pWiki->zMimetype)


      /* see https://fossil-scm.org/forum/forumpost/0acfdaac80 */;
  }
  if( !isSandbox && P("submit")!=0 && P("r")!=0 && P("u")!=0
   && (goodCaptcha = captcha_is_correct(0))
  ){
    char *zDate;
    Blob cksum;
    Blob body;
    Blob wiki;


    blob_zero(&body);





    login_verify_csrf_secret();


    blob_append(&body, pWiki->zWiki, -1);


    blob_zero(&wiki);
    db_begin_transaction();
    zDate = date_in_standard_format("now");
    blob_appendf(&wiki, "D %s\n", zDate);
    blob_appendf(&wiki, "L %F\n", zPageName);
    if( fossil_strcmp(zMimetype, "text/x-fossil-wiki")!=0 ){
      blob_appendf(&wiki, "N %s\n", zMimetype);
    }
    if( rid ){
      char *zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
      blob_appendf(&wiki, "P %s\n", zUuid);
      free(zUuid);
    }
    if( !login_is_nobody() ){
      blob_appendf(&wiki, "U %F\n", login_name());
    }
    appendRemark(&body, zMimetype);
    blob_appendf(&wiki, "W %d\n%s\n", blob_size(&body), blob_str(&body));
    md5sum_blob(&wiki, &cksum);
    blob_appendf(&wiki, "Z %b\n", &cksum);
    blob_reset(&cksum);
    wiki_put(&wiki, rid, wiki_need_moderation(0));
    db_end_transaction(0);

    manifest_destroy(pWiki);
    cgi_redirectf("wiki?name=%T", zPageName);
    return;
  }
  if( !isSandbox && P("cancel")!=0 ){
    manifest_destroy(pWiki);
    cgi_redirectf("wiki?name=%T", zPageName);
    return;
  }
  style_set_current_page("%T?name=%T", g.zPath, zPageName);
  style_set_current_feature("wiki");
  style_header("Append Comment To: %s", zPageName);
  if( !goodCaptcha ){
    @ <p class="generalError">Error: Incorrect security code.</p>
  }
  if( isSandbox ){
    @ <p class="generalError">Error: the Sandbox page may not
    @ be appended to.</p>
  }
  if( !isSandbox && P("preview")!=0 ){
    Blob preview;
    blob_zero(&preview);
    appendRemark(&preview, zMimetype);
    @ Preview:<hr />
    safe_html_context(DOCSRC_WIKI);
    wiki_render_by_mimetype(&preview, zMimetype);
    @ <hr />

  @  rows="10" wrap="virtual">%h(PD("r",""))</textarea>
  @ <br />
  @ <input type="submit" name="preview" value="Preview Your Comment" />
  @ <input type="submit" name="submit" value="Append Your Changes" />
  @ <input type="submit" name="cancel" value="Cancel" />
  captcha_generate(0);
  @ </form>
  manifest_destroy(pWiki);
  style_finish_page();
}

/*
** WEBPAGE: whistory
** URL: /whistory?name=PAGENAME
**