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Detect legacy aspnet-prerendering mode earlier to fix #470

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SteveSandersonMS
2016-11-29 17:23:14 +00:00
parent 5d14f11b1b
commit a8d3eed32c
2 changed files with 48 additions and 8 deletions
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27
src/Microsoft.AspNetCore.SpaServices/Content/Node/prerenderer.js
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@@ -71,7 +71,8 @@
// a certain flag is attached to the function instance.
function renderToStringImpl(callback, applicationBasePath, bootModule, absoluteRequestUrl, requestPathAndQuery, customDataParameter, overrideTimeoutMilliseconds) {
try {
var renderToStringFunc = findRenderToStringFunc(applicationBasePath, bootModule);
var forceLegacy = isLegacyAspNetPrerendering();
var renderToStringFunc = !forceLegacy && findRenderToStringFunc(applicationBasePath, bootModule);
var isNotLegacyMode = renderToStringFunc && renderToStringFunc['isServerRenderer'];
if (isNotLegacyMode) {
// Current (non-legacy) mode - we invoke the exported function directly (instead of going through aspnet-prerendering)
@@ -81,9 +82,9 @@
}
else {
// Legacy mode - just hand off execution to 'aspnet-prerendering' v1.x, which must exist in node_modules at runtime
renderToStringFunc = __webpack_require__(3).renderToString;
if (renderToStringFunc) {
renderToStringFunc(callback, applicationBasePath, bootModule, absoluteRequestUrl, requestPathAndQuery, customDataParameter, overrideTimeoutMilliseconds);
var aspNetPrerenderingV1RenderToString = __webpack_require__(3).renderToString;
if (aspNetPrerenderingV1RenderToString) {
aspNetPrerenderingV1RenderToString(callback, applicationBasePath, bootModule, absoluteRequestUrl, requestPathAndQuery, customDataParameter, overrideTimeoutMilliseconds);
}
else {
callback('If you use aspnet-prerendering >= 2.0.0, you must update your server-side boot module to call createServerRenderer. '
@@ -141,6 +142,24 @@
}
return renderToStringFunc;
}
function isLegacyAspNetPrerendering() {
var version = getAspNetPrerenderingPackageVersion();
return version && /^1\./.test(version);
}
function getAspNetPrerenderingPackageVersion() {
try {
var packageEntryPoint = require.resolve('aspnet-prerendering');
var packageDir = path.dirname(packageEntryPoint);
var packageJsonPath = path.join(packageDir, 'package.json');
var packageJson = require(packageJsonPath);
return packageJson.version.toString();
}
catch (ex) {
// Implies aspnet-prerendering isn't in node_modules at all (or node_modules itself doesn't exist,
// which will be the case in production based on latest templates).
return null;
}
}
/***/ },