easydatabase/index.php at master · openbsd000/easydatabase · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>数据库管理 - PHP + MySQL</title>
<style>
  * { box-sizing: border-box; }
  body { font-family: -apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
         margin: 0; color: #222; }
  a { color: #2d7ff9; }
  button { padding: 6px 12px; border: none; border-radius: 6px; background: #2d7ff9;
           color: #fff; font-size: 13px; cursor: pointer; }
  button:hover { background: #1c6fe0; }
  button.ghost { background: #eee; color: #333; }
  button.danger { background: #e23; }
  input, select { padding: 6px 8px; border: 1px solid #ccc; border-radius: 6px; font-size: 13px; }
  /* 登录层 */
  #login { position: fixed; inset: 0; background: #f2f4f8; display: flex;
           align-items: center; justify-content: center; z-index: 50; }
  #login .card { width: 320px; }
  .crow { display: flex; gap: 6px; margin-bottom: 6px; align-items: center; }
  .crow input { flex: 1; }
  .crow select { flex: 1; }
  /* 顶栏 */
  #top { display: flex; gap: 8px; align-items: center; padding: 8px 12px;
         background: #2d7ff9; color: #fff; }
  #top .spacer { flex: 1; }
  #top .who { font-size: 14px; }
  #top button { background: rgba(255,255,255,.2); }
  #top button:hover { background: rgba(255,255,255,.35); }
  /* 主体 */
  #app { display: none; flex-direction: column; height: 100vh; }
  #wrap { display: flex; flex: 1; overflow: hidden; }
  #side { width: 220px; background: #f7f8fa; border-right: 1px solid #eee;
          padding: 12px; overflow-y: auto; }
  #side h3 { font-size: 13px; color: #888; margin: 0 0 8px; }
  .titem { padding: 6px 8px; border-radius: 6px; cursor: pointer; font-size: 14px; }
  .titem:hover { background: #e9eef7; }
  .titem.active { background: #2d7ff9; color: #fff; }
  #main { flex: 1; padding: 16px; overflow: auto; }
  #main h2 { margin: 0 0 12px; font-size: 18px; }
  .bar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; align-items: center; }
  table { border-collapse: collapse; width: 100%; font-size: 13px; }
  th, td { border: 1px solid #eee; padding: 6px 8px; text-align: left; }
  th { background: #f7f8fa; position: sticky; top: 0; }
  td input { width: 100%; box-sizing: border-box; }
  .msg { padding: 8px 10px; border-radius: 6px; margin-bottom: 10px; display: none; }
  .msg.err { background: #fdecea; color: #c0392b; display: block; }
  .msg.ok  { background: #eafaf1; color: #1e8449; display: block; }
  /* 弹窗 */
  .modal { position: fixed; inset: 0; background: rgba(0,0,0,.35); display: none;
           align-items: center; justify-content: center; z-index: 40; }
  .modal.show { display: flex; }
  .card { background: #fff; border-radius: 10px; padding: 18px; width: 560px; max-width: 92vw;
          max-height: 88vh; overflow: auto; }
  .card h3 { margin: 0 0 12px; }
  .muted { color: #999; font-size: 12px; }
  .pager { margin-top: 10px; display: flex; gap: 8px; align-items: center; }
  .userRow { display: flex; gap: 8px; align-items: center; padding: 6px 0; border-bottom: 1px solid #f0f0f0; }
  .userRow .un { flex: 1; font-size: 14px; }
</style>
</head>
<body>

  <!-- 登录层 -->
  <div id="login">
    <div class="card">
      <h3>登录数据库管理</h3>
      <div class="crow"><input id="lu" placeholder="用户名" autofocus></div>
      <div class="crow"><input id="lp" type="password" placeholder="密码"></div>
      <div id="lmsg" class="msg err" style="display:none;"></div>
      <button id="loginBtn" style="width:100%;">登录</button>
      <div class="muted" style="margin-top:8px;">默认管理员 admin / admin123，首次登录后请修改密码。</div>
    </div>
  </div>

  <!-- 主应用 -->
  <div id="app">
    <div id="top">
      <span class="who" id="who"></span>
      <span class="spacer"></span>
      <button class="ghost" id="adminBtn" style="display:none;">用户管理</button>
      <button id="logoutBtn">退出登录</button>
    </div>
    <div id="wrap">
      <div id="side">
        <h3>数据表</h3>
        <div id="tableList"></div>
        <div class="bar" style="margin-top:12px;">
          <button class="ghost" id="newTableBtn">+ 新建表</button>
        </div>
      </div>

      <div id="main">
        <div id="msg" class="msg"></div>
        <h2 id="title">请选择左侧的表</h2>
        <div class="bar" id="toolbar" style="display:none;">
          <button class="ghost" id="addRowBtn">+ 新增一行</button>
          <button class="ghost" id="delTableBtn" style="margin-left:auto;">删除此表</button>
        </div>
        <div id="grid"></div>
        <div class="pager" id="pager" style="display:none;">
          <button class="ghost" id="prevPage">上一页</button>
          <span id="pageInfo" class="muted"></span>
          <button class="ghost" id="nextPage">下一页</button>
          <span class="muted">排序：</span>
          <select id="orderBy"></select>
          <select id="orderDir"><option value="ASC">升序</option><option value="DESC">降序</option></select>
        </div>
      </div>
    </div>
  </div>

  <!-- 新建表弹窗 -->
  <div class="modal" id="tableModal">
    <div class="card">
      <h3>新建数据表</h3>
      <div class="crow">
        <input id="newTableName" placeholder="表名（英文/数字/下划线）">
      </div>
      <div id="colDefs"></div>
      <button class="ghost" id="addColBtn" style="margin:6px 0 12px;">+ 加一列</button>
      <div>
        <button id="createTableOk">创建</button>
        <button class="ghost" id="tableCancel">取消</button>
      </div>
      <div class="muted" style="margin-top:8px;">提示：至少一列设为「主键」；自增主键通常用 INT + 主键 + 自增。</div>
    </div>
  </div>

  <!-- 用户管理弹窗 -->
  <div class="modal" id="userModal">
    <div class="card">
      <h3>用户管理（管理员）</h3>
      <div class="crow">
        <input id="nu" class="cn" placeholder="新用户名">
        <input id="np" type="password" placeholder="密码（至少6位）">
        <label class="muted"><input type="checkbox" id="na">管理员</label>
        <button id="createUserBtn">创建</button>
      </div>
      <div id="userList" style="margin-top:10px;"></div>
      <div style="margin-top:12px;"><button class="ghost" id="userCancel">关闭</button></div>
    </div>
  </div>

  <!-- 修改密码弹窗 -->
  <div class="modal" id="chgModal">
    <div class="card">
      <h3>修改密码</h3>
      <div class="crow"><input id="co" type="password" placeholder="原密码（管理员重置他人时无需填）"></div>
      <div class="crow"><input id="cn" type="password" placeholder="新密码（至少6位）"></div>
      <div class="crow" id="chgTargetRow" style="display:none;">
        <input id="chgTarget" placeholder="要重置密码的用户名">
      </div>
      <div>
        <button id="chgSave">保存</button>
        <button class="ghost" id="chgCancel">取消</button>
      </div>
    </div>
  </div>

<script>
  const $ = (s) => document.querySelector(s);
  const api = (action, opts = {}) => {
    const url = 'api.php?action=' + action + (opts.q || '');
    return fetch(url, {
      method: opts.method || 'GET',
      headers: opts.body ? {'Content-Type': 'application/json'} : {},
      body: opts.body ? JSON.stringify(opts.body) : undefined
    }).then(async r => {
      const txt = await r.text();
      try { return JSON.parse(txt); }
      catch (e) { return { error: '服务器返回异常（HTTP ' + r.status + '）：' + txt.replace(/\s+/g, ' ').slice(0, 600) }; }
    });
  };

  let me = null;
  let state = { table: null, columns: [], rows: [], page: 1, size: 50, orderBy: '', dir: 'ASC' };

  function msg(text, ok) {
    const m = $('#msg');
    m.textContent = text;
    m.className = 'msg ' + (ok ? 'ok' : 'err');
    if (ok) setTimeout(() => { m.style.display = 'none'; }, 2500);
  }
  function showApp() { $('#login').style.display = 'none'; $('#app').style.display = 'flex'; }
  function showLogin() {
    $('#app').style.display = 'none'; $('#login').style.display = 'flex';
    $('#lmsg').style.display = 'none'; $('#lp').value = '';
  }

  // 启动：探测登录态
  async function boot() {
    const d = await api('me');
    if (d.error) { showLogin(); return; }
    me = d.user;
    $('#who').textContent = me.username + (me.is_admin ? '（管理员）' : '');
    $('#adminBtn').style.display = me.is_admin ? 'inline-block' : 'none';
    showApp();
    loadTables();
    if (me.must_change) openChange();
  }

  /* ---------- 登录 / 登出 ---------- */
  $('#loginBtn').onclick = async () => {
    const d = await api('login', { method: 'POST', body: { username: $('#lu').value, password: $('#lp').value } });
    if (d.error) { const m = $('#lmsg'); m.textContent = d.error; m.style.display = 'block'; return; }
    $('#lu').value = ''; $('#lp').value = '';
    boot();
  };
  $('#lp').addEventListener('keydown', e => { if (e.key === 'Enter') $('#loginBtn').click(); });
  $('#logoutBtn').onclick = async () => { await api('logout'); me = null; showLogin(); };

  /* ---------- 用户管理（管理员） ---------- */
  $('#adminBtn').onclick = async () => {
    const d = await api('listUsers');
    if (d.error) return msg(d.error);
    const box = $('#userList'); box.innerHTML = '';
    d.users.forEach(u => {
      const row = document.createElement('div'); row.className = 'userRow';
      const name = document.createElement('span'); name.className = 'un';
      name.textContent = u.username + (u.is_admin ? '（管理员）' : '');
      row.appendChild(name);
      if (!u.is_admin || u.username !== me.username) {
        const reset = document.createElement('button'); reset.className = 'ghost'; reset.textContent = '重置密码';
        reset.onclick = async () => {
          const pw = prompt('为 ' + u.username + ' 设置新密码（至少6位）');
          if (!pw) return;
          const r = await api('changePassword', { method: 'POST', body: { username: u.username, new: pw } });
          if (r.error) return msg(r.error); msg('已重置 ' + u.username + ' 的密码', true);
        };
        row.appendChild(reset);
        const del = document.createElement('button'); del.className = 'danger'; del.textContent = '删除';
        del.onclick = async () => {
          if (!confirm('确定删除用户 ' + u.username + '？')) return;
          const r = await api('deleteUser', { method: 'POST', body: { username: u.username } });
          if (r.error) return msg(r.error); msg('已删除 ' + u.username, true); $('#adminBtn').click();
        };
        row.appendChild(del);
      }
      box.appendChild(row);
    });
    $('#userModal').classList.add('show');
  };
  $('#createUserBtn').onclick = async () => {
    const username = $('#nu').value.trim();
    const password = $('#np').value;
    const is_admin = $('#na').checked;
    const d = await api('createUser', { method: 'POST', body: { username, password, is_admin } });
    if (d.error) return msg(d.error);
    msg('已创建用户 ' + username, true);
    $('#nu').value = ''; $('#np').value = ''; $('#na').checked = false;
    $('#adminBtn').click();
  };
  $('#userCancel').onclick = () => $('#userModal').classList.remove('show');

  /* ---------- 修改密码 ---------- */
  function openChange() {
    $('#chgTargetRow').style.display = me.is_admin ? 'flex' : 'none';
    $('#chgModal').classList.add('show');
  }
  $('#chgSave').onclick = async () => {
    const body = { old: $('#co').value, new: $('#cn').value };
    if (me.is_admin && $('#chgTarget').value.trim()) body.username = $('#chgTarget').value.trim();
    const d = await api('changePassword', { method: 'POST', body });
    if (d.error) return msg(d.error);
    msg('密码已更新', true);
    $('#chgModal').classList.remove('show');
    $('#co').value = ''; $('#cn').value = ''; $('#chgTarget').value = '';
    if (me.must_change) { me.must_change = false; }
  };
  $('#chgCancel').onclick = () => $('#chgModal').classList.remove('show');

  /* ---------- 表操作（与原逻辑一致） ---------- */
  function loadTables() {
    api('tables').then(d => {
      if (d.error) return msg(d.error);
      const box = $('#tableList'); box.innerHTML = '';
      d.tables.forEach(t => {
        const div = document.createElement('div');
        div.className = 'titem' + (t === state.table ? ' active' : '');
        div.textContent = t;
        div.onclick = () => selectTable(t);
        box.appendChild(div);
      });
    });
  }

  function selectTable(name) {
    state.table = name; state.page = 1; state.orderBy = ''; state.dir = 'ASC';
    loadTables();
    api('structure', { q: '&table=' + encodeURIComponent(name) }).then(d => {
      if (d.error) return msg(d.error);
      state.columns = d.columns;
      $('#title').textContent = '表：' + name;
      $('#toolbar').style.display = 'flex';
      $('#pager').style.display = 'flex';
      const ob = $('#orderBy'); ob.innerHTML = '<option value="">（默认）</option>';
      d.columns.forEach(c => {
        const o = document.createElement('option'); o.value = c.name; o.textContent = c.name; ob.appendChild(o);
      });
      loadRows();
    });
  }

  function loadRows() {
    const q = '&table=' + encodeURIComponent(state.table) +
              '&page=' + state.page + '&size=' + state.size +
              '&orderBy=' + encodeURIComponent(state.orderBy) +
              '&dir=' + state.dir;
    api('rows', { q }).then(d => {
      if (d.error) return msg(d.error);
      state.rows = d.rows; state.columns = d.columns;
      renderGrid();
      $('#pageInfo').textContent = '第 ' + d.page + ' 页 / 共 ' + Math.ceil(d.total / d.size) + ' 页（' + d.total + ' 条）';
    });
  }

  function renderGrid() {
    const cols = state.columns;
    const grid = $('#grid'); grid.innerHTML = '';
    const table = document.createElement('table');
    const thead = document.createElement('thead');
    const htr = document.createElement('tr');
    cols.forEach(c => {
      const th = document.createElement('th');
      th.textContent = c.name + (c.primary ? ' *' : '');
      htr.appendChild(th);
    });
    const thOp = document.createElement('th'); thOp.textContent = '操作'; thOp.style.width = '120px';
    htr.appendChild(thOp);
    thead.appendChild(htr); table.appendChild(thead);

    const tbody = document.createElement('tbody');
    state.rows.forEach((row) => {
      const tr = document.createElement('tr');
      cols.forEach(c => {
        const td = document.createElement('td');
        const inp = document.createElement('input');
        inp.value = row[c.name] === null ? '' : row[c.name];
        inp.disabled = true;
        if (c.autoIncrement) inp.title = '自增，无需填写';
        td.appendChild(inp);
        tr.appendChild(td);
      });
      const tdOp = document.createElement('td');
      const edit = document.createElement('button'); edit.className = 'ghost'; edit.textContent = '编辑';
      edit.onclick = () => startEdit(tr, row);
      const del = document.createElement('button'); del.className = 'danger'; del.textContent = '删除';
      del.onclick = () => deleteRow(row);
      tdOp.appendChild(edit); tdOp.appendChild(del);
      tr.appendChild(tdOp);
      tbody.appendChild(tr);
    });
    table.appendChild(tbody);
    grid.appendChild(table);
  }

  function pkOf(row) {
    const pk = {};
    state.columns.filter(c => c.primary).forEach(c => { pk[c.name] = row[c.name]; });
    return pk;
  }

  function startEdit(tr, row) {
    const cols = state.columns;
    tr.querySelectorAll('input').forEach((inp, i) => {
      const c = cols[i];
      inp.disabled = c.autoIncrement;
    });
    const tdOp = tr.lastChild;
    tdOp.innerHTML = '';
    const save = document.createElement('button'); save.textContent = '保存';
    const cancel = document.createElement('button'); cancel.className = 'ghost'; cancel.textContent = '取消';
    save.onclick = () => {
      const values = {};
      tr.querySelectorAll('input').forEach((inp, i) => {
        const c = cols[i];
        if (!c.autoIncrement) values[c.name] = inp.value;
      });
      api('update', { method: 'POST', q: '&table=' + encodeURIComponent(state.table),
                      body: { pk: pkOf(row), values } })
        .then(d => {
          if (d.error) return msg(d.error);
          msg('已保存', true); loadRows();
        });
    };
    cancel.onclick = () => loadRows();
    tdOp.appendChild(save); tdOp.appendChild(cancel);
  }

  function deleteRow(row) {
    if (!confirm('确定删除这一行？')) return;
    api('delete', { method: 'POST', q: '&table=' + encodeURIComponent(state.table),
                    body: { pk: pkOf(row) } })
      .then(d => {
        if (d.error) return msg(d.error);
        msg('已删除', true); loadRows();
      });
  }

  let adding = false;
  $('#addRowBtn').onclick = () => {
    if (adding) return; adding = true;
    const cols = state.columns;
    const tr = document.createElement('tr');
    tr.style.background = '#fffbe6';
    cols.forEach(c => {
      const td = document.createElement('td');
      const inp = document.createElement('input');
      inp.placeholder = c.autoIncrement ? '（自增）' : '';
      inp.disabled = c.autoIncrement;
      td.appendChild(inp); tr.appendChild(td);
    });
    const tdOp = document.createElement('td');
    const save = document.createElement('button'); save.textContent = '保存';
    const cancel = document.createElement('button'); cancel.className = 'ghost'; cancel.textContent = '取消';
    save.onclick = () => {
      const values = {};
      tr.querySelectorAll('input').forEach((inp, i) => {
        const c = cols[i];
        if (!c.autoIncrement) values[c.name] = inp.value;
      });
      api('insert', { method: 'POST', q: '&table=' + encodeURIComponent(state.table),
                      body: { values } })
        .then(d => {
          if (d.error) return msg(d.error);
          msg('已新增', true); adding = false; loadRows();
        });
    };
    cancel.onclick = () => { adding = false; loadRows(); };
    tdOp.appendChild(save); tdOp.appendChild(cancel); tr.appendChild(tdOp);
    $('#grid table tbody').prepend(tr);
  };

  $('#delTableBtn').onclick = () => {
    if (!confirm('确定删除整张表「' + state.table + '」？此操作不可恢复！')) return;
    api('dropTable', { method: 'POST', body: { name: state.table } })
      .then(d => {
        if (d.error) return msg(d.error);
        msg('表已删除', true);
        state.table = null;
        $('#title').textContent = '请选择左侧的表';
        $('#toolbar').style.display = 'none';
        $('#pager').style.display = 'none';
        $('#grid').innerHTML = '';
        loadTables();
      });
  };

  $('#prevPage').onclick = () => { if (state.page > 1) { state.page--; loadRows(); } };
  $('#nextPage').onclick = () => { state.page++; loadRows(); };
  $('#orderBy').onchange = (e) => { state.orderBy = e.target.value; state.page = 1; loadRows(); };
  $('#orderDir').onchange = (e) => { state.dir = e.target.value; state.page = 1; loadRows(); };

  function colRow() {
    const row = document.createElement('div'); row.className = 'crow';
    row.innerHTML = `
      <input class="cn" placeholder="列名">
      <select class="ct">
        <option>INT</option><option>VARCHAR(100)</option><option>TEXT</option>
        <option>DECIMAL(10,2)</option><option>DATETIME</option><option>DATE</option>
        <option>BOOLEAN</option><option>CHAR(1)</option><option>BIGINT</option>
      </select>
      <label class="muted"><input type="checkbox" class="cpri">主键</label>
      <label class="muted"><input type="checkbox" class="cai">自增</label>
      <label class="muted"><input type="checkbox" class="cnul" checked>可空</label>
      <button class="ghost cdel">×</button>`;
    row.querySelector('.cdel').onclick = () => row.remove();
    return row;
  }
  $('#newTableBtn').onclick = () => {
    $('#colDefs').innerHTML = '';
    $('#colDefs').appendChild(colRow());
    $('#tableModal').classList.add('show');
  };
  $('#addColBtn').onclick = () => $('#colDefs').appendChild(colRow());
  $('#tableCancel').onclick = () => $('#tableModal').classList.remove('show');
  $('#createTableOk').onclick = () => {
    const name = $('#newTableName').value.trim();
    const columns = [];
    document.querySelectorAll('#colDefs .crow').forEach(r => {
      columns.push({
        name: r.querySelector('.cn').value.trim(),
        type: r.querySelector('.ct').value,
        primary: r.querySelector('.cpri').checked,
        autoIncrement: r.querySelector('.cai').checked,
        nullable: r.querySelector('.cnul').checked
      });
    });
    api('createTable', { method: 'POST', body: { name, columns } })
      .then(d => {
        if (d.error) return msg(d.error);
        msg('表已创建', true);
        $('#tableModal').classList.remove('show');
        loadTables();
      });
  };

  // 启动
  boot();
</script>
</body>
</html>