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Move to redirects.go

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video-prize-ranch 2023-03-14 19:08:19 -04:00
parent d51245a527
commit a17db68a6b
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2 changed files with 56 additions and 50 deletions
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56
server/upstream/redirects.go
View file

@ -6,6 +6,7 @@ import (
"time"
"codeberg.org/codeberg/pages/server/cache"
"codeberg.org/codeberg/pages/server/context"
"codeberg.org/codeberg/pages/server/gitea"
"github.com/rs/zerolog/log"
)
@ -21,12 +22,13 @@ var redirectsCacheTimeout = 10 * time.Minute
const redirectsConfig = "_redirects"
// GetRedirects returns redirects specified in the _redirects file.
func (o *Options) GetRedirects(giteaClient *gitea.Client, redirectsCache cache.SetGetKey) []Redirect {
// getRedirects returns redirects specified in the _redirects file.
func (o *Options) getRedirects(giteaClient *gitea.Client, redirectsCache cache.SetGetKey) []Redirect {
var redirects []Redirect
cacheKey := o.TargetOwner + "/" + o.TargetRepo + "/" + o.TargetBranch
// Check for cached redirects
if cachedValue, ok := redirectsCache.Get(o.TargetOwner + "/" + o.TargetRepo + "/" + o.TargetBranch); ok {
if cachedValue, ok := redirectsCache.Get(cacheKey); ok {
redirects = cachedValue.([]Redirect)
} else {
// Get _redirects file and parse
@ -60,3 +62,51 @@ func (o *Options) GetRedirects(giteaClient *gitea.Client, redirectsCache cache.S
}
return redirects
}
func (o *Options) matchRedirects(ctx *context.Context, giteaClient *gitea.Client, redirects []Redirect, redirectsCache cache.SetGetKey) {
if len(redirects) > 0 {
for _, redirect := range redirects {
reqUrl := ctx.Req.RequestURI
// check if from url matches request url
if strings.TrimSuffix(redirect.From, "/") == strings.TrimSuffix(reqUrl, "/") {
// do rewrite if status code is 200
if redirect.StatusCode == 200 {
o.TargetPath = redirect.To
o.Upstream(ctx, giteaClient, redirectsCache)
return
} else {
ctx.Redirect(redirect.To, redirect.StatusCode)
return
}
}
// handle wildcard redirects
trimmedFromUrl := strings.TrimSuffix(redirect.From, "/*")
if strings.HasSuffix(redirect.From, "/*") && strings.HasPrefix(reqUrl, trimmedFromUrl) {
if strings.Contains(redirect.To, ":splat") {
splatUrl := strings.ReplaceAll(redirect.To, ":splat", strings.TrimPrefix(reqUrl, trimmedFromUrl))
// do rewrite if status code is 200
if redirect.StatusCode == 200 {
o.TargetPath = splatUrl
o.Upstream(ctx, giteaClient, redirectsCache)
return
} else {
ctx.Redirect(splatUrl, redirect.StatusCode)
return
}
} else {
// do rewrite if status code is 200
if redirect.StatusCode == 200 {
o.TargetPath = redirect.To
o.Upstream(ctx, giteaClient, redirectsCache)
return
} else {
ctx.Redirect(redirect.To, redirect.StatusCode)
return
}
}
}
}
}
}

50
server/upstream/upstream.go
View file

@ -138,53 +138,9 @@ func (o *Options) Upstream(ctx *context.Context, giteaClient *gitea.Client, redi
}
}
// Check for redirects
redirects := o.GetRedirects(giteaClient, redirectsCache)
if len(redirects) > 0 {
for _, redirect := range redirects {
reqUrl := ctx.Req.RequestURI
// check if from url matches request url
if strings.TrimSuffix(redirect.From, "/") == strings.TrimSuffix(reqUrl, "/") {
// do rewrite if status code is 200
if redirect.StatusCode == 200 {
o.TargetPath = redirect.To
o.Upstream(ctx, giteaClient, redirectsCache)
return true
} else {
ctx.Redirect(redirect.To, redirect.StatusCode)
return true
}
}
// handle wildcard redirects
trimmedFromUrl := strings.TrimSuffix(redirect.From, "/*")
if strings.HasSuffix(redirect.From, "/*") && strings.HasPrefix(reqUrl, trimmedFromUrl) {
if strings.Contains(redirect.To, ":splat") {
splatUrl := strings.ReplaceAll(redirect.To, ":splat", strings.TrimPrefix(reqUrl, trimmedFromUrl))
// do rewrite if status code is 200
if redirect.StatusCode == 200 {
o.TargetPath = splatUrl
o.Upstream(ctx, giteaClient, redirectsCache)
return true
} else {
ctx.Redirect(splatUrl, redirect.StatusCode)
return true
}
} else {
// do rewrite if status code is 200
if redirect.StatusCode == 200 {
o.TargetPath = redirect.To
o.Upstream(ctx, giteaClient, redirectsCache)
return true
} else {
ctx.Redirect(redirect.To, redirect.StatusCode)
return true
}
}
}
}
}
// Get and match redirects
redirects := o.getRedirects(giteaClient, redirectsCache)
o.matchRedirects(ctx, giteaClient, redirects, redirectsCache)
return false
}