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caddyhttp: Auto-redirects from all bind addresses (fix #3443)

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This commit is contained in:
Matthew Holt
2020-06-03 10:56:26 -06:00
parent a285fe4129
commit 2d1f7b9da8
1 changed files with 11 additions and 7 deletions
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18
modules/caddyhttp/autohttps.go
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@ -81,8 +81,10 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
uniqueDomainsForCerts := make(map[string]struct{}) uniqueDomainsForCerts := make(map[string]struct{})
// this maps domain names for automatic HTTP->HTTPS // this maps domain names for automatic HTTP->HTTPS
// redirects to their destination server address // redirects to their destination server addresses
redirDomains := make(map[string]caddy.NetworkAddress) // (there might be more than 1 if bind is used; see
// https://github.com/caddyserver/caddy/issues/3443)
redirDomains := make(map[string][]caddy.NetworkAddress)
for srvName, srv := range app.Servers { for srvName, srv := range app.Servers {
// as a prerequisite, provision route matchers; this is // as a prerequisite, provision route matchers; this is
@ -220,7 +222,7 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
// an empty string to indicate a catch-all, which we have to // an empty string to indicate a catch-all, which we have to
// treat special later // treat special later
if len(serverDomainSet) == 0 { if len(serverDomainSet) == 0 {
redirDomains[""] = addr redirDomains[""] = append(redirDomains[""], addr)
continue continue
} }
@ -230,7 +232,7 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
// port, we'll have to choose one, so prefer the HTTPS port // port, we'll have to choose one, so prefer the HTTPS port
if _, ok := redirDomains[d]; !ok || if _, ok := redirDomains[d]; !ok ||
addr.StartPort == uint(app.httpsPort()) { addr.StartPort == uint(app.httpsPort()) {
redirDomains[d] = addr redirDomains[d] = append(redirDomains[d], addr)
} }
} }
} }
@ -278,9 +280,11 @@ uniqueDomainsLoop:
// we need to reduce the mapping, i.e. group domains by address // we need to reduce the mapping, i.e. group domains by address
// since new routes are appended to servers by their address // since new routes are appended to servers by their address
domainsByAddr := make(map[string][]string) domainsByAddr := make(map[string][]string)
for domain, addr := range redirDomains { for domain, addrs := range redirDomains {
addrStr := addr.String() for _, addr := range addrs {
domainsByAddr[addrStr] = append(domainsByAddr[addrStr], domain) addrStr := addr.String()
domainsByAddr[addrStr] = append(domainsByAddr[addrStr], domain)
}
} }
// these keep track of the redirect server address(es) // these keep track of the redirect server address(es)