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Add fetch* utils

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This commit is contained in:
Michael Jackson
2018-05-21 15:44:00 -07:00
parent ba14f9197f
commit 26ba4698e3
7 changed files with 200 additions and 153 deletions
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72
server/middleware/fetchPackage.js
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@ -52,8 +52,42 @@ function semverRedirect(req, res) {
* version if the request targets a tag or uses a semver version.
*/
function fetchPackage(req, res, next) {
getPackageInfo(req.packageName, (error, packageInfo) => {
if (error) {
getPackageInfo(req.packageName).then(
packageInfo => {
if (packageInfo == null || packageInfo.versions == null) {
return res
.status(404)
.type("text")
.send(`Cannot find package "${req.packageName}"`);
}
req.packageInfo = packageInfo;
if (req.packageVersion in req.packageInfo.versions) {
// A valid request for a package we haven't downloaded yet.
req.packageConfig = req.packageInfo.versions[req.packageVersion];
getPackage(req.packageConfig).then(
outputDir => {
req.packageDir = outputDir;
next();
},
error => {
console.error(error);
res
.status(500)
.type("text")
.send(`Cannot fetch package ${req.packageSpec}`);
}
);
} else if (req.packageVersion in req.packageInfo["dist-tags"]) {
tagRedirect(req, res);
} else {
semverRedirect(req, res);
}
},
error => {
console.error(error);
return res
@ -61,39 +95,7 @@ function fetchPackage(req, res, next) {
.type("text")
.send(`Cannot get info for package "${req.packageName}"`);
}
if (packageInfo == null || packageInfo.versions == null) {
return res
.status(404)
.type("text")
.send(`Cannot find package "${req.packageName}"`);
}
req.packageInfo = packageInfo;
if (req.packageVersion in req.packageInfo.versions) {
// A valid request for a package we haven't downloaded yet.
req.packageConfig = req.packageInfo.versions[req.packageVersion];
getPackage(req.packageConfig, (error, outputDir) => {
if (error) {
console.error(error);
res
.status(500)
.type("text")
.send(`Cannot fetch package ${req.packageSpec}`);
} else {
req.packageDir = outputDir;
next();
}
});
} else if (req.packageVersion in req.packageInfo["dist-tags"]) {
tagRedirect(req, res);
} else {
semverRedirect(req, res);
}
});
);
}
module.exports = fetchPackage;