小程序启动下载逻辑相关：
https://game.weixin.qq.com/cgi-bin/h5/static/commlib/index.html
这个是实时的。 但是貌似本地也会存储，存储路径： /var/mobile/Containers/Data/Application/B1E7B553-B1EC-4679-A4C1-ED81541F0D44/Library/WechatPrivate/WePkg/Data/commlib/9192/pkg.dat
这个dat格式和wxapkg格式有一点差别， 暂时还没有找到怎么解压它的方法。
下载小程序相关逻辑：
function (e, t, n) { var i = n(4), o = n(0); (i.downloadAppInternal = i.downloadAppInternal || function (e, t) { e = e || {}; var n = o.clientVersion(!0); o.versionCompare(n, "6.5.6") >= 0 ? i.invoke("downloadAppInternal", e, t) : (t && t.call(i, {}), (window.location.href = e.appUrl)); }), (e.exports = i); }
downloadApp: {
ios: function (e) {
var t = e.appitem,
n = e.callback,
i = e.config || {};
T.detail.launchApp({
appitem: t,
config: i,
callback: function (e) {
e.err_msg.indexOf(":ok") > -1 || e.err_msg.indexOf(":yes") > -1
? n(e)
: (function (e, t) {
var n = e.DownloadInfo,
r = o.versionCompare(o.clientVersion(1), "6.5.5") > 0;
if (
!i.downloadInternal ||
!r ||
v.getQueryStr("isFromWeappEntry")
)
return (
(location.href = n.DownloadURL),
void t({ err_msg: "downloadAppInternal:ok" })
);
a.downloadAppInternal(
{ appUrl: n.DownloadURL },
function (e) {
t(e);
}
);
})(t, n);
},
});
},
android: function (e) {
var t = e.appitem,
n = e.callback,
i = e.config || {},
s = t.AppID,
l = t.DownloadInfo,
u =
o.versionCompare(o.clientVersion(1), "6.5.7") >= 0
? "addDownloadTaskStraight"
: "addDownloadTask",
d = "number" == typeof l.DownloaderType ? l.DownloaderType : 1,
p =
"boolean" == typeof l.use_downloader_widget &&
l.use_downloader_widget,
f = "boolean" == typeof l.download_in_wifi && l.download_in_wifi,
g = i.isAutoDownload ? 3 : 1,
m = l.android_section_md5_list || [];
function h() {
a.invoke(
u,
{
appid: s,
task_name: t.Name || t.PackageName,
package_name: t.PackageName,
task_url: l.DownloadURL,
file_md5: l.AndroidApkMd5,
task_size: l.AndroidApkSize,
alternative_url: l.AlternativeDownloadURL,
downloader_type: d,
download_type: g,
use_downloader_widget: p,
download_in_wifi: f,
scene: i.sceneid,
uiarea: i.uiarea,
fileSectionMd5: m,
extInfo: encodeURIComponent(
JSON.stringify({
gameid: s,
noticeid:
parseInt(t.Noticeid) ||
parseInt(v.getQueryStr("noticeid") || 0) ||
0,
})
),
},
function (e) {
E(t, i, e, "add"),
n && n(e),
p &&
o.versionCompare(o.clientVersion(1), "7.0.3") >= 0 &&
r.trigger("addToDownloaderWidget", { appid: s });
}
);
}
i.showDownloadConfirmAlert && o.isAndroid
? c.alert("即将为你下载 ".concat(t.Name), {
confirmCb: function () {
h();
},
style: "twoBtn",
closeCb: function () {},
})
: h();
},
},
launchApp: function (e) {
var t = e.appitem,
n = e.callback,
i = e.config || {},
r = t.AppID,
s = t.DownloadInfo;
if (t.has_sp_launch_privilege)
new l({
appid: r,
ssid: i.sceneid,
success: function (e) {
d({ extern_info: e.extern_info });
},
fail: function () {
d();
},
cancel: function () {},
});
else {
var c = p.getKeyValue("first_launch_game_privilege");
(!c || (c && -1 === c.indexOf(r || ""))) &&
o.isAndroid &&
t &&
4 !== t.AppType
? ((c = c ? JSON.parse(c) : []).push(r),
p.setKeyValue("first_launch_game_privilege", JSON.stringify(c)),
new u({
appid: r,
appitem: t,
scene: "",
uiarea: "",
success: function (e) {
console.log("success"), d();
},
cancel: function () {
console.log("cancel");
},
}))
: d();
}
function d(e) {
var c =
o.versionCompare(o.clientVersion(1), "6.5.5") >= 0
? "launchApplication"
: "launch3rdApp",
l =
(e = e || {}).extern_info ||
t.launch_info ||
(o.isAndroid ? i.launchAndroidAppText : i.launchIOSAppText);
a.invoke(
c,
{
appID: r,
messageExt: l,
extInfo: l,
showLaunchFailToast: !1,
installSchemeUrl: s.DownloadURL,
installAction: 1,
},
function (e) {
n && n(e);
}
);
}
},
installApp: function (e) {
var t = e.appitem,
n = e.callback,
i = e.config || {},
o = t.AppID,
r = i.isAutoDownload ? 3 : 1;
a.queryDownloadTask({ appid: o }, function (e) {
e.state.indexOf("_succ") > -1
? a.installDownloadTask(
{ download_id: e.download_id, download_type: r },
function (e) {
n(e);
}
)
: n({
err_msg:
"(installApp -> queryDownloadTask):" + JSON.stringify(e),
});
});
},
launchAppOrH5: function (e) {
var t = e.appitem,
n = e.callback,
i = e.config || {},
o = T.detail;
o.launchApp({
appitem: t,
callback: function (e) {
e.err_msg.indexOf(":ok") > -1 ? n(e) : o.launchH5(t, n);
},
config: i,
});
},
这些都是比较核心的逻辑。
appitem是很关键的数据结构， 小程序的下载地址为： appitem.DownloadInfo.DownloadURL
微信小程序和微信APP的交互，全靠window.WeixinJSBridge 这个是很关键的东西。