117 lines
5.6 KiB
JavaScript
117 lines
5.6 KiB
JavaScript
// Taobao scopes are independent: userInfo login does not grant camera/album.
|
||
//
|
||
// 平台差异（2026-11-01 真机实测，SDKVersion=2.9.4）：
|
||
// my.getSetting 返回 {"scope.userInfo":true,"scope.camera":true}
|
||
// my.authorize({scopes:'camera'}) → 失败 {"errorCode":"5022","errorMessage":"Scope:camera信息不存在"}
|
||
// my.authorize({scopes:'scope.camera'}) → 成功
|
||
// 结论：淘宝用带前缀的 scope.camera / scope.album（和微信一致），裸名不存在。
|
||
// 这里优先用带前缀的写法，失败再退回裸名（兼容其它淘宝/SDK 版本）。
|
||
var denied = {};
|
||
var lastError = null;
|
||
|
||
function bare(scope) { return scope.replace(/^scope\./, ''); }
|
||
function prefixed(scope) { return /^scope\./.test(scope) ? scope : 'scope.' + scope; }
|
||
|
||
function state(settings, scope) {
|
||
settings = settings || {};
|
||
var key = bare(scope);
|
||
return typeof settings[scope] === 'boolean' ? settings[scope] : settings[key];
|
||
}
|
||
function settings() {
|
||
return new Promise(function (resolve) {
|
||
if (typeof my.getSetting !== 'function') { resolve({}); return; }
|
||
try {
|
||
my.getSetting({
|
||
success: function (res) { resolve((res && res.authSetting) || {}); },
|
||
fail: function () { resolve({}); }
|
||
});
|
||
} catch (e) { resolve({}); } // API 不存在/同步抛错：当作空设置，走后续兜底
|
||
});
|
||
}
|
||
|
||
// 平台是否具备内置相机能力（淘宝部分版本没有 <camera> / createCameraContext）
|
||
function cameraSupported() {
|
||
try {
|
||
if (typeof my.createCameraContext !== 'function') return false;
|
||
if (typeof my.canIUse === 'function') return !!my.canIUse('camera') && !!my.canIUse('createCameraContext');
|
||
return true;
|
||
} catch (e) { return false; }
|
||
}
|
||
function describe(err) {
|
||
if (err === undefined || err === null) return 'null';
|
||
try { return JSON.stringify(err).slice(0, 200); } catch (e) { return String(err).slice(0, 200); }
|
||
}
|
||
function rejected(scope) {
|
||
var err = new Error(scope === 'scope.camera'
|
||
? '相机权限未开启：请点「授权设置」开启，或直接用系统相机/相册'
|
||
: '相册权限未开启，请在授权设置中开启');
|
||
err.permission = scope; err.detail = lastError;
|
||
return err;
|
||
}
|
||
// 授权：先按支付宝/淘宝的裸名字（camera），失败且不是"用户拒绝"时再试微信式（scope.camera）
|
||
function authorizeOnce(scopes) {
|
||
return new Promise(function (resolve, reject) {
|
||
my.authorize({ scopes: scopes,
|
||
success: function (res) { resolve({ scopes: scopes, ok: true, res: res }); },
|
||
fail: function (err) { reject({ scopes: scopes, ok: false, err: err }); } });
|
||
});
|
||
}
|
||
function ensure(scope) {
|
||
// This app only captures still photos and selects existing images. Region
|
||
// selection is manual and spoken guidance is playback, never recording.
|
||
// Reject unrelated scopes before even querying platform authorization state.
|
||
if (scope !== 'scope.camera' && scope !== 'scope.album') {
|
||
return Promise.reject(new Error('当前功能不需要此项授权'));
|
||
}
|
||
return settings().then(function (current) {
|
||
if (state(current, scope) === true) { delete denied[scope]; return; }
|
||
if (state(current, scope) === false || denied[scope]) throw rejected(scope);
|
||
if (typeof my.authorize !== 'function') throw new Error('当前淘宝版本不支持授权，请升级后重试');
|
||
return authorizeOnce(prefixed(scope)).catch(function (first) {
|
||
lastError = describe(first.err);
|
||
return authorizeOnce(bare(scope)).catch(function (second) {
|
||
lastError = describe(first.err) + ' / ' + describe(second.err);
|
||
denied[scope] = true;
|
||
throw rejected(scope);
|
||
});
|
||
}).then(function () { delete denied[scope]; });
|
||
});
|
||
}
|
||
function open() {
|
||
return new Promise(function (resolve, reject) {
|
||
if (typeof my.openSetting !== 'function') { reject(new Error('请在小程序右上角的授权设置中开启权限')); return; }
|
||
my.openSetting({ success: function (res) {
|
||
var current = res.authSetting || {};
|
||
['scope.camera', 'scope.album'].forEach(function (scope) { if (state(current, scope) === true) delete denied[scope]; });
|
||
resolve(current);
|
||
}, fail: function () { reject(new Error('无法打开授权设置，请从小程序右上角进入')); } });
|
||
});
|
||
}
|
||
|
||
// 权限诊断：把真机上的真实能力/返回值打出来，供页面展示与截图
|
||
function diagnose() {
|
||
var info = [];
|
||
try { info.push('SDKVersion=' + (my.SDKVersion || '(none)')); } catch (e) { info.push('SDKVersion=error'); }
|
||
['camera', 'createCameraContext', 'chooseImage', 'authorize', 'getSetting', 'openSetting', 'getImageInfo', 'createCanvasContext'].forEach(function (api) {
|
||
var use = 'n/a';
|
||
try { use = typeof my.canIUse === 'function' ? (my.canIUse(api) ? 'yes' : 'no') : 'no-canIUse'; } catch (e) { use = 'canIUse-err'; }
|
||
info.push(api + ': typeof=' + (typeof my[api]) + ' canIUse=' + use);
|
||
});
|
||
return settings().then(function (current) {
|
||
info.push('authSetting=' + describe(current));
|
||
if (typeof my.authorize !== 'function') { info.push('authorize: 无此 API'); return info; }
|
||
return authorizeOnce(prefixed('camera')).then(function (r) {
|
||
info.push('authorize(scope.camera)=ok ' + describe(r.res));
|
||
}, function (r) {
|
||
info.push('authorize(scope.camera)=fail ' + describe(r.err));
|
||
return authorizeOnce(bare('camera')).then(function (r2) {
|
||
info.push('authorize(camera)=ok ' + describe(r2.res));
|
||
}, function (r2) {
|
||
info.push('authorize(camera)=fail ' + describe(r2.err));
|
||
});
|
||
}).then(function () { return info; });
|
||
});
|
||
}
|
||
|
||
module.exports = { ensure: ensure, settings: settings, state: state, open: open, diagnose: diagnose, bare: bare, cameraSupported: cameraSupported };
|