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Merge pull request fatedier#1349 from fatedier/dev
bump version to v0.28.0
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,157 @@ | ||
package group | ||
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import ( | ||
"fmt" | ||
"sync" | ||
"sync/atomic" | ||
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frpNet "github.com/fatedier/frp/utils/net" | ||
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"github.com/fatedier/frp/utils/vhost" | ||
) | ||
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type HTTPGroupController struct { | ||
groups map[string]*HTTPGroup | ||
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vhostRouter *vhost.VhostRouters | ||
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mu sync.Mutex | ||
} | ||
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func NewHTTPGroupController(vhostRouter *vhost.VhostRouters) *HTTPGroupController { | ||
return &HTTPGroupController{ | ||
groups: make(map[string]*HTTPGroup), | ||
vhostRouter: vhostRouter, | ||
} | ||
} | ||
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func (ctl *HTTPGroupController) Register(proxyName, group, groupKey string, | ||
routeConfig vhost.VhostRouteConfig) (err error) { | ||
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indexKey := httpGroupIndex(group, routeConfig.Domain, routeConfig.Location) | ||
ctl.mu.Lock() | ||
g, ok := ctl.groups[indexKey] | ||
if !ok { | ||
g = NewHTTPGroup(ctl) | ||
ctl.groups[indexKey] = g | ||
} | ||
ctl.mu.Unlock() | ||
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return g.Register(proxyName, group, groupKey, routeConfig) | ||
} | ||
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func (ctl *HTTPGroupController) UnRegister(proxyName, group, domain, location string) { | ||
indexKey := httpGroupIndex(group, domain, location) | ||
ctl.mu.Lock() | ||
defer ctl.mu.Unlock() | ||
g, ok := ctl.groups[indexKey] | ||
if !ok { | ||
return | ||
} | ||
|
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isEmpty := g.UnRegister(proxyName) | ||
if isEmpty { | ||
delete(ctl.groups, indexKey) | ||
} | ||
} | ||
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type HTTPGroup struct { | ||
group string | ||
groupKey string | ||
domain string | ||
location string | ||
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createFuncs map[string]vhost.CreateConnFunc | ||
pxyNames []string | ||
index uint64 | ||
ctl *HTTPGroupController | ||
mu sync.RWMutex | ||
} | ||
|
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func NewHTTPGroup(ctl *HTTPGroupController) *HTTPGroup { | ||
return &HTTPGroup{ | ||
createFuncs: make(map[string]vhost.CreateConnFunc), | ||
pxyNames: make([]string, 0), | ||
ctl: ctl, | ||
} | ||
} | ||
|
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func (g *HTTPGroup) Register(proxyName, group, groupKey string, | ||
routeConfig vhost.VhostRouteConfig) (err error) { | ||
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g.mu.Lock() | ||
defer g.mu.Unlock() | ||
if len(g.createFuncs) == 0 { | ||
// the first proxy in this group | ||
tmp := routeConfig // copy object | ||
tmp.CreateConnFn = g.createConn | ||
err = g.ctl.vhostRouter.Add(routeConfig.Domain, routeConfig.Location, &tmp) | ||
if err != nil { | ||
return | ||
} | ||
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g.group = group | ||
g.groupKey = groupKey | ||
g.domain = routeConfig.Domain | ||
g.location = routeConfig.Location | ||
} else { | ||
if g.group != group || g.domain != routeConfig.Domain || g.location != routeConfig.Location { | ||
err = ErrGroupParamsInvalid | ||
return | ||
} | ||
if g.groupKey != groupKey { | ||
err = ErrGroupAuthFailed | ||
return | ||
} | ||
} | ||
if _, ok := g.createFuncs[proxyName]; ok { | ||
err = ErrProxyRepeated | ||
return | ||
} | ||
g.createFuncs[proxyName] = routeConfig.CreateConnFn | ||
g.pxyNames = append(g.pxyNames, proxyName) | ||
return nil | ||
} | ||
|
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func (g *HTTPGroup) UnRegister(proxyName string) (isEmpty bool) { | ||
g.mu.Lock() | ||
defer g.mu.Unlock() | ||
delete(g.createFuncs, proxyName) | ||
for i, name := range g.pxyNames { | ||
if name == proxyName { | ||
g.pxyNames = append(g.pxyNames[:i], g.pxyNames[i+1:]...) | ||
break | ||
} | ||
} | ||
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if len(g.createFuncs) == 0 { | ||
isEmpty = true | ||
g.ctl.vhostRouter.Del(g.domain, g.location) | ||
} | ||
return | ||
} | ||
|
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func (g *HTTPGroup) createConn(remoteAddr string) (frpNet.Conn, error) { | ||
var f vhost.CreateConnFunc | ||
newIndex := atomic.AddUint64(&g.index, 1) | ||
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g.mu.RLock() | ||
group := g.group | ||
domain := g.domain | ||
location := g.location | ||
if len(g.pxyNames) > 0 { | ||
name := g.pxyNames[int(newIndex)%len(g.pxyNames)] | ||
f, _ = g.createFuncs[name] | ||
} | ||
g.mu.RUnlock() | ||
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if f == nil { | ||
return nil, fmt.Errorf("no CreateConnFunc for http group [%s], domain [%s], location [%s]", group, domain, location) | ||
} | ||
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return f(remoteAddr) | ||
} | ||
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func httpGroupIndex(group, domain, location string) string { | ||
return fmt.Sprintf("%s_%s_%s", group, domain, location) | ||
} |
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