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authorMatthew Holt <mholt@users.noreply.github.com>2019-10-05 16:20:07 -0600
committerMatthew Holt <mholt@users.noreply.github.com>2019-10-05 16:20:07 -0600
commit6fd28b81dcfa41ea84e376d569d90a08e172e263 (patch)
tree1bf0ab7f2834f77da0ef223e60912966972b1366 /modules
parent65c060f56e2e2d3a94580d938d8373f736821d83 (diff)
caddyhttp: Define MatcherSets and RawMatcherSets types
Diffstat (limited to 'modules')
-rw-r--r--modules/caddyhttp/routes.go110
1 files changed, 68 insertions, 42 deletions
diff --git a/modules/caddyhttp/routes.go b/modules/caddyhttp/routes.go
index 108bb15..9dca107 100644
--- a/modules/caddyhttp/routes.go
+++ b/modules/caddyhttp/routes.go
@@ -26,13 +26,13 @@ import (
// middlewares, and a responder for handling HTTP
// requests.
type Route struct {
- Group string `json:"group,omitempty"`
- MatcherSetsRaw []map[string]json.RawMessage `json:"match,omitempty"`
- HandlersRaw []json.RawMessage `json:"handle,omitempty"`
- Terminal bool `json:"terminal,omitempty"`
+ Group string `json:"group,omitempty"`
+ MatcherSetsRaw RawMatcherSets `json:"match,omitempty"`
+ HandlersRaw []json.RawMessage `json:"handle,omitempty"`
+ Terminal bool `json:"terminal,omitempty"`
// decoded values
- MatcherSets []MatcherSet `json:"-"`
+ MatcherSets MatcherSets `json:"-"`
Handlers []MiddlewareHandler `json:"-"`
}
@@ -46,32 +46,6 @@ func (r Route) Empty() bool {
r.Group == ""
}
-func (r Route) anyMatcherSetMatches(req *http.Request) bool {
- for _, ms := range r.MatcherSets {
- if ms.Match(req) {
- return true
- }
- }
- // if no matchers, always match
- return len(r.MatcherSets) == 0
-}
-
-// MatcherSet is a set of matchers which
-// must all match in order for the request
-// to be matched successfully.
-type MatcherSet []RequestMatcher
-
-// Match returns true if the request matches all
-// matchers in mset.
-func (mset MatcherSet) Match(r *http.Request) bool {
- for _, m := range mset {
- if !m.Match(r) {
- return false
- }
- }
- return true
-}
-
// RouteList is a list of server routes that can
// create a middleware chain.
type RouteList []Route
@@ -80,17 +54,11 @@ type RouteList []Route
func (routes RouteList) Provision(ctx caddy.Context) error {
for i, route := range routes {
// matchers
- for _, matcherSet := range route.MatcherSetsRaw {
- var matchers MatcherSet
- for modName, rawMsg := range matcherSet {
- val, err := ctx.LoadModule("http.matchers."+modName, rawMsg)
- if err != nil {
- return fmt.Errorf("loading matcher module '%s': %v", modName, err)
- }
- matchers = append(matchers, val.(RequestMatcher))
- }
- routes[i].MatcherSets = append(routes[i].MatcherSets, matchers)
+ matcherSets, err := route.MatcherSetsRaw.Setup(ctx)
+ if err != nil {
+ return err
}
+ routes[i].MatcherSets = matcherSets
routes[i].MatcherSetsRaw = nil // allow GC to deallocate
// handlers
@@ -118,7 +86,7 @@ func (routes RouteList) BuildCompositeRoute(req *http.Request) Handler {
for _, route := range routes {
// route must match at least one of the matcher sets
- if !route.anyMatcherSetMatches(req) {
+ if !route.MatcherSets.AnyMatch(req) {
continue
}
@@ -181,3 +149,61 @@ func wrapMiddleware(mh MiddlewareHandler) Middleware {
}
}
}
+
+// MatcherSet is a set of matchers which
+// must all match in order for the request
+// to be matched successfully.
+type MatcherSet []RequestMatcher
+
+// Match returns true if the request matches all
+// matchers in mset.
+func (mset MatcherSet) Match(r *http.Request) bool {
+ for _, m := range mset {
+ if !m.Match(r) {
+ return false
+ }
+ }
+ return true
+}
+
+// RawMatcherSets is a group of matcher sets
+// in their raw, JSON form.
+type RawMatcherSets []map[string]json.RawMessage
+
+// Setup sets up all matcher sets by loading each matcher module
+// and returning the group of provisioned matcher sets.
+func (rm RawMatcherSets) Setup(ctx caddy.Context) (MatcherSets, error) {
+ if rm == nil {
+ return nil, nil
+ }
+ var ms MatcherSets
+ for _, matcherSet := range rm {
+ var matchers MatcherSet
+ for modName, rawMsg := range matcherSet {
+ val, err := ctx.LoadModule("http.matchers."+modName, rawMsg)
+ if err != nil {
+ return nil, fmt.Errorf("loading matcher module '%s': %v", modName, err)
+ }
+ matchers = append(matchers, val.(RequestMatcher))
+ }
+ ms = append(ms, matchers)
+ }
+ return ms, nil
+}
+
+// MatcherSets is a group of matcher sets capable
+// of checking whether a request matches any of
+// the sets.
+type MatcherSets []MatcherSet
+
+// AnyMatch returns true if req matches any of the
+// matcher sets in mss or if there are no matchers,
+// in which case the request always matches.
+func (mss MatcherSets) AnyMatch(req *http.Request) bool {
+ for _, ms := range mss {
+ if ms.Match(req) {
+ return true
+ }
+ }
+ return len(mss) == 0
+}