From d17270dd90c488308de3102d6951946ca0a5911f Mon Sep 17 00:00:00 2001 From: Bo-Yi Wu Date: Sun, 10 May 2020 13:22:25 +0800 Subject: [PATCH] Sync route tree to httprouter latest code (#2368) * update tree Signed-off-by: Bo-Yi Wu * update Signed-off-by: Bo-Yi Wu * update Signed-off-by: Bo-Yi Wu * update countParams Signed-off-by: Bo-Yi Wu * fix testing Signed-off-by: Bo-Yi Wu * update Signed-off-by: Bo-Yi Wu * update Signed-off-by: Bo-Yi Wu * udpate Signed-off-by: Bo-Yi Wu * fix testing Signed-off-by: Bo-Yi Wu * refactor gin context Signed-off-by: Bo-Yi Wu * add fullPath Signed-off-by: Bo-Yi Wu * chore: refactor * remove unused code Signed-off-by: Bo-Yi Wu * remove varsCount Signed-off-by: Bo-Yi Wu * refactor Signed-off-by: Bo-Yi Wu --- context.go | 2 + gin.go | 16 +- tree.go | 609 +++++++++++++++++++++++++++++---------------------- tree_test.go | 84 ++++--- 4 files changed, 411 insertions(+), 300 deletions(-) diff --git a/context.go b/context.go index 4ebcc29..2ea1a02 100644 --- a/context.go +++ b/context.go @@ -54,6 +54,7 @@ type Context struct { fullPath string engine *Engine + params *Params // This mutex protect Keys map mu sync.RWMutex @@ -95,6 +96,7 @@ func (c *Context) reset() { c.Accepted = nil c.queryCache = nil c.formCache = nil + *c.params = (*c.params)[0:0] } // Copy returns a copy of the current context that can be safely used outside the request's scope. diff --git a/gin.go b/gin.go index 4e72f81..1e12617 100644 --- a/gin.go +++ b/gin.go @@ -113,6 +113,7 @@ type Engine struct { noMethod HandlersChain pool sync.Pool trees methodTrees + maxParams uint16 } var _ IRouter = &Engine{} @@ -163,7 +164,8 @@ func Default() *Engine { } func (engine *Engine) allocateContext() *Context { - return &Context{engine: engine} + v := make(Params, 0, engine.maxParams) + return &Context{engine: engine, params: &v} } // Delims sets template left and right delims and returns a Engine instance. @@ -256,6 +258,7 @@ func (engine *Engine) addRoute(method, path string, handlers HandlersChain) { assert1(len(handlers) > 0, "there must be at least one handler") debugPrintRoute(method, path, handlers) + root := engine.trees.get(method) if root == nil { root = new(node) @@ -263,6 +266,11 @@ func (engine *Engine) addRoute(method, path string, handlers HandlersChain) { engine.trees = append(engine.trees, methodTree{method: method, root: root}) } root.addRoute(path, handlers) + + // Update maxParams + if paramsCount := countParams(path); paramsCount > engine.maxParams { + engine.maxParams = paramsCount + } } // Routes returns a slice of registered routes, including some useful information, such as: @@ -402,10 +410,12 @@ func (engine *Engine) handleHTTPRequest(c *Context) { } root := t[i].root // Find route in tree - value := root.getValue(rPath, c.Params, unescape) + value := root.getValue(rPath, c.params, unescape) + if value.params != nil { + c.Params = *value.params + } if value.handlers != nil { c.handlers = value.handlers - c.Params = value.params c.fullPath = value.fullPath c.Next() c.writermem.WriteHeaderNow() diff --git a/tree.go b/tree.go index b687ec4..e3aa919 100644 --- a/tree.go +++ b/tree.go @@ -8,6 +8,7 @@ import ( "net/url" "strings" "unicode" + "unicode/utf8" ) // Param is a single URL parameter, consisting of a key and a value. @@ -71,17 +72,15 @@ func longestCommonPrefix(a, b string) int { return i } -func countParams(path string) uint8 { +func countParams(path string) uint16 { var n uint - for i := 0; i < len(path); i++ { - if path[i] == ':' || path[i] == '*' { + for i := range []byte(path) { + switch path[i] { + case ':', '*': n++ } } - if n >= 255 { - return 255 - } - return uint8(n) + return uint16(n) } type nodeType uint8 @@ -96,16 +95,15 @@ const ( type node struct { path string indices string + wildChild bool + nType nodeType + priority uint32 children []*node handlers HandlersChain - priority uint32 - nType nodeType - maxParams uint8 - wildChild bool fullPath string } -// increments priority of the given child and reorders if necessary. +// Increments priority of the given child and reorders if necessary func (n *node) incrementChildPrio(pos int) int { cs := n.children cs[pos].priority++ @@ -116,13 +114,14 @@ func (n *node) incrementChildPrio(pos int) int { for ; newPos > 0 && cs[newPos-1].priority < prio; newPos-- { // Swap node positions cs[newPos-1], cs[newPos] = cs[newPos], cs[newPos-1] + } - // build new index char string + // Build new index char string if newPos != pos { - n.indices = n.indices[:newPos] + // unchanged prefix, might be empty - n.indices[pos:pos+1] + // the index char we move - n.indices[newPos:pos] + n.indices[pos+1:] // rest without char at 'pos' + n.indices = n.indices[:newPos] + // Unchanged prefix, might be empty + n.indices[pos:pos+1] + // The index char we move + n.indices[newPos:pos] + n.indices[pos+1:] // Rest without char at 'pos' } return newPos @@ -133,11 +132,10 @@ func (n *node) incrementChildPrio(pos int) int { func (n *node) addRoute(path string, handlers HandlersChain) { fullPath := path n.priority++ - numParams := countParams(path) // Empty tree if len(n.path) == 0 && len(n.children) == 0 { - n.insertChild(numParams, path, fullPath, handlers) + n.insertChild(path, fullPath, handlers) n.nType = root return } @@ -146,11 +144,6 @@ func (n *node) addRoute(path string, handlers HandlersChain) { walk: for { - // Update maxParams of the current node - if numParams > n.maxParams { - n.maxParams = numParams - } - // Find the longest common prefix. // This also implies that the common prefix contains no ':' or '*' // since the existing key can't contain those chars. @@ -168,13 +161,6 @@ walk: fullPath: n.fullPath, } - // Update maxParams (max of all children) - for _, v := range child.children { - if v.maxParams > child.maxParams { - child.maxParams = v.maxParams - } - } - n.children = []*node{&child} // []byte for proper unicode char conversion, see #65 n.indices = string([]byte{n.path[i]}) @@ -193,18 +179,13 @@ walk: n = n.children[0] n.priority++ - // Update maxParams of the child node - if numParams > n.maxParams { - n.maxParams = numParams - } - numParams-- - // Check if the wildcard matches - if len(path) >= len(n.path) && n.path == path[:len(n.path)] { - // check for longer wildcard, e.g. :name and :names - if len(n.path) >= len(path) || path[len(n.path)] == '/' { - continue walk - } + if len(path) >= len(n.path) && n.path == path[:len(n.path)] && + // Adding a child to a catchAll is not possible + n.nType != catchAll && + // Check for longer wildcard, e.g. :name and :names + (len(n.path) >= len(path) || path[len(n.path)] == '/') { + continue walk } pathSeg := path @@ -244,14 +225,13 @@ walk: // []byte for proper unicode char conversion, see #65 n.indices += string([]byte{c}) child := &node{ - maxParams: numParams, - fullPath: fullPath, + fullPath: fullPath, } n.children = append(n.children, child) n.incrementChildPrio(len(n.indices) - 1) n = child } - n.insertChild(numParams, path, fullPath, handlers) + n.insertChild(path, fullPath, handlers) return } @@ -265,7 +245,7 @@ walk: } // Search for a wildcard segment and check the name for invalid characters. -// Returns -1 as index, if no wildcard war found. +// Returns -1 as index, if no wildcard was found. func findWildcard(path string) (wildcard string, i int, valid bool) { // Find start for start, c := range []byte(path) { @@ -289,8 +269,8 @@ func findWildcard(path string) (wildcard string, i int, valid bool) { return "", -1, false } -func (n *node) insertChild(numParams uint8, path string, fullPath string, handlers HandlersChain) { - for numParams > 0 { +func (n *node) insertChild(path string, fullPath string, handlers HandlersChain) { + for { // Find prefix until first wildcard wildcard, i, valid := findWildcard(path) if i < 0 { // No wildcard found @@ -324,15 +304,13 @@ func (n *node) insertChild(numParams uint8, path string, fullPath string, handle n.wildChild = true child := &node{ - nType: param, - path: wildcard, - maxParams: numParams, - fullPath: fullPath, + nType: param, + path: wildcard, + fullPath: fullPath, } n.children = []*node{child} n = child n.priority++ - numParams-- // if the path doesn't end with the wildcard, then there // will be another non-wildcard subpath starting with '/' @@ -340,9 +318,8 @@ func (n *node) insertChild(numParams uint8, path string, fullPath string, handle path = path[len(wildcard):] child := &node{ - maxParams: numParams, - priority: 1, - fullPath: fullPath, + priority: 1, + fullPath: fullPath, } n.children = []*node{child} n = child @@ -355,7 +332,7 @@ func (n *node) insertChild(numParams uint8, path string, fullPath string, handle } // catchAll - if i+len(wildcard) != len(path) || numParams > 1 { + if i+len(wildcard) != len(path) { panic("catch-all routes are only allowed at the end of the path in path '" + fullPath + "'") } @@ -375,13 +352,9 @@ func (n *node) insertChild(numParams uint8, path string, fullPath string, handle child := &node{ wildChild: true, nType: catchAll, - maxParams: 1, fullPath: fullPath, } - // update maxParams of the parent node - if n.maxParams < 1 { - n.maxParams = 1 - } + n.children = []*node{child} n.indices = string('/') n = child @@ -389,12 +362,11 @@ func (n *node) insertChild(numParams uint8, path string, fullPath string, handle // second node: node holding the variable child = &node{ - path: path[i:], - nType: catchAll, - maxParams: 1, - handlers: handlers, - priority: 1, - fullPath: fullPath, + path: path[i:], + nType: catchAll, + handlers: handlers, + priority: 1, + fullPath: fullPath, } n.children = []*node{child} @@ -410,21 +382,128 @@ func (n *node) insertChild(numParams uint8, path string, fullPath string, handle // nodeValue holds return values of (*Node).getValue method type nodeValue struct { handlers HandlersChain - params Params + params *Params tsr bool fullPath string } -// getValue returns the handle registered with the given path (key). The values of +// Returns the handle registered with the given path (key). The values of // wildcards are saved to a map. // If no handle can be found, a TSR (trailing slash redirect) recommendation is // made if a handle exists with an extra (without the) trailing slash for the // given path. -func (n *node) getValue(path string, po Params, unescape bool) (value nodeValue) { - value.params = po +func (n *node) getValue(path string, params *Params, unescape bool) (value nodeValue) { walk: // Outer loop for walking the tree for { prefix := n.path + if len(path) > len(prefix) { + if path[:len(prefix)] == prefix { + path = path[len(prefix):] + // If this node does not have a wildcard (param or catchAll) + // child, we can just look up the next child node and continue + // to walk down the tree + if !n.wildChild { + idxc := path[0] + for i, c := range []byte(n.indices) { + if c == idxc { + n = n.children[i] + continue walk + } + } + + // Nothing found. + // We can recommend to redirect to the same URL without a + // trailing slash if a leaf exists for that path. + value.tsr = (path == "/" && n.handlers != nil) + return + } + + // Handle wildcard child + n = n.children[0] + switch n.nType { + case param: + // Find param end (either '/' or path end) + end := 0 + for end < len(path) && path[end] != '/' { + end++ + } + + // Save param value + if params != nil { + if value.params == nil { + value.params = params + } + // Expand slice within preallocated capacity + i := len(*value.params) + *value.params = (*value.params)[:i+1] + val := path[:end] + if unescape { + if v, err := url.QueryUnescape(val); err == nil { + val = v + } + } + (*value.params)[i] = Param{ + Key: n.path[1:], + Value: val, + } + } + + // we need to go deeper! + if end < len(path) { + if len(n.children) > 0 { + path = path[end:] + n = n.children[0] + continue walk + } + + // ... but we can't + value.tsr = (len(path) == end+1) + return + } + + if value.handlers = n.handlers; value.handlers != nil { + value.fullPath = n.fullPath + return + } + if len(n.children) == 1 { + // No handle found. Check if a handle for this path + a + // trailing slash exists for TSR recommendation + n = n.children[0] + value.tsr = (n.path == "/" && n.handlers != nil) + } + return + + case catchAll: + // Save param value + if params != nil { + if value.params == nil { + value.params = params + } + // Expand slice within preallocated capacity + i := len(*value.params) + *value.params = (*value.params)[:i+1] + val := path + if unescape { + if v, err := url.QueryUnescape(path); err == nil { + val = v + } + } + (*value.params)[i] = Param{ + Key: n.path[2:], + Value: val, + } + } + + value.handlers = n.handlers + value.fullPath = n.fullPath + return + + default: + panic("invalid node type") + } + } + } + if path == prefix { // We should have reached the node containing the handle. // Check if this node has a handle registered. @@ -433,6 +512,9 @@ walk: // Outer loop for walking the tree return } + // If there is no handle for this route, but this route has a + // wildcard child, there must be a handle for this path with an + // additional trailing slash if path == "/" && n.wildChild && n.nType != root { value.tsr = true return @@ -440,9 +522,8 @@ walk: // Outer loop for walking the tree // No handle found. Check if a handle for this path + a // trailing slash exists for trailing slash recommendation - indices := n.indices - for i, max := 0, len(indices); i < max; i++ { - if indices[i] == '/' { + for i, c := range []byte(n.indices) { + if c == '/' { n = n.children[i] value.tsr = (len(n.path) == 1 && n.handlers != nil) || (n.nType == catchAll && n.children[0].handlers != nil) @@ -453,106 +534,6 @@ walk: // Outer loop for walking the tree return } - if len(path) > len(prefix) && path[:len(prefix)] == prefix { - path = path[len(prefix):] - // If this node does not have a wildcard (param or catchAll) - // child, we can just look up the next child node and continue - // to walk down the tree - if !n.wildChild { - c := path[0] - indices := n.indices - for i, max := 0, len(indices); i < max; i++ { - if c == indices[i] { - n = n.children[i] - continue walk - } - } - - // Nothing found. - // We can recommend to redirect to the same URL without a - // trailing slash if a leaf exists for that path. - value.tsr = path == "/" && n.handlers != nil - return - } - - // handle wildcard child - n = n.children[0] - switch n.nType { - case param: - // find param end (either '/' or path end) - end := 0 - for end < len(path) && path[end] != '/' { - end++ - } - - // save param value - if cap(value.params) < int(n.maxParams) { - value.params = make(Params, 0, n.maxParams) - } - i := len(value.params) - value.params = value.params[:i+1] // expand slice within preallocated capacity - value.params[i].Key = n.path[1:] - val := path[:end] - if unescape { - var err error - if value.params[i].Value, err = url.QueryUnescape(val); err != nil { - value.params[i].Value = val // fallback, in case of error - } - } else { - value.params[i].Value = val - } - - // we need to go deeper! - if end < len(path) { - if len(n.children) > 0 { - path = path[end:] - n = n.children[0] - continue walk - } - - // ... but we can't - value.tsr = len(path) == end+1 - return - } - - if value.handlers = n.handlers; value.handlers != nil { - value.fullPath = n.fullPath - return - } - if len(n.children) == 1 { - // No handle found. Check if a handle for this path + a - // trailing slash exists for TSR recommendation - n = n.children[0] - value.tsr = n.path == "/" && n.handlers != nil - } - return - - case catchAll: - // save param value - if cap(value.params) < int(n.maxParams) { - value.params = make(Params, 0, n.maxParams) - } - i := len(value.params) - value.params = value.params[:i+1] // expand slice within preallocated capacity - value.params[i].Key = n.path[2:] - if unescape { - var err error - if value.params[i].Value, err = url.QueryUnescape(path); err != nil { - value.params[i].Value = path // fallback, in case of error - } - } else { - value.params[i].Value = path - } - - value.handlers = n.handlers - value.fullPath = n.fullPath - return - - default: - panic("invalid node type") - } - } - // Nothing found. We can recommend to redirect to the same URL with an // extra trailing slash if a leaf exists for that path value.tsr = (path == "/") || @@ -562,109 +543,214 @@ walk: // Outer loop for walking the tree } } -// findCaseInsensitivePath makes a case-insensitive lookup of the given path and tries to find a handler. +// Makes a case-insensitive lookup of the given path and tries to find a handler. // It can optionally also fix trailing slashes. // It returns the case-corrected path and a bool indicating whether the lookup // was successful. -func (n *node) findCaseInsensitivePath(path string, fixTrailingSlash bool) (ciPath []byte, found bool) { - ciPath = make([]byte, 0, len(path)+1) // preallocate enough memory +func (n *node) findCaseInsensitivePath(path string, fixTrailingSlash bool) ([]byte, bool) { + const stackBufSize = 128 - // Outer loop for walking the tree - for len(path) >= len(n.path) && strings.EqualFold(path[:len(n.path)], n.path) { - path = path[len(n.path):] + // Use a static sized buffer on the stack in the common case. + // If the path is too long, allocate a buffer on the heap instead. + buf := make([]byte, 0, stackBufSize) + if l := len(path) + 1; l > stackBufSize { + buf = make([]byte, 0, l) + } + + ciPath := n.findCaseInsensitivePathRec( + path, + buf, // Preallocate enough memory for new path + [4]byte{}, // Empty rune buffer + fixTrailingSlash, + ) + + return ciPath, ciPath != nil +} + +// Shift bytes in array by n bytes left +func shiftNRuneBytes(rb [4]byte, n int) [4]byte { + switch n { + case 0: + return rb + case 1: + return [4]byte{rb[1], rb[2], rb[3], 0} + case 2: + return [4]byte{rb[2], rb[3]} + case 3: + return [4]byte{rb[3]} + default: + return [4]byte{} + } +} + +// Recursive case-insensitive lookup function used by n.findCaseInsensitivePath +func (n *node) findCaseInsensitivePathRec(path string, ciPath []byte, rb [4]byte, fixTrailingSlash bool) []byte { + npLen := len(n.path) + +walk: // Outer loop for walking the tree + for len(path) >= npLen && (npLen == 0 || strings.EqualFold(path[1:npLen], n.path[1:])) { + // Add common prefix to result + oldPath := path + path = path[npLen:] ciPath = append(ciPath, n.path...) - if len(path) == 0 { + if len(path) > 0 { + // If this node does not have a wildcard (param or catchAll) child, + // we can just look up the next child node and continue to walk down + // the tree + if !n.wildChild { + // Skip rune bytes already processed + rb = shiftNRuneBytes(rb, npLen) + + if rb[0] != 0 { + // Old rune not finished + idxc := rb[0] + for i, c := range []byte(n.indices) { + if c == idxc { + // continue with child node + n = n.children[i] + npLen = len(n.path) + continue walk + } + } + } else { + // Process a new rune + var rv rune + + // Find rune start. + // Runes are up to 4 byte long, + // -4 would definitely be another rune. + var off int + for max := min(npLen, 3); off < max; off++ { + if i := npLen - off; utf8.RuneStart(oldPath[i]) { + // read rune from cached path + rv, _ = utf8.DecodeRuneInString(oldPath[i:]) + break + } + } + + // Calculate lowercase bytes of current rune + lo := unicode.ToLower(rv) + utf8.EncodeRune(rb[:], lo) + + // Skip already processed bytes + rb = shiftNRuneBytes(rb, off) + + idxc := rb[0] + for i, c := range []byte(n.indices) { + // Lowercase matches + if c == idxc { + // must use a recursive approach since both the + // uppercase byte and the lowercase byte might exist + // as an index + if out := n.children[i].findCaseInsensitivePathRec( + path, ciPath, rb, fixTrailingSlash, + ); out != nil { + return out + } + break + } + } + + // If we found no match, the same for the uppercase rune, + // if it differs + if up := unicode.ToUpper(rv); up != lo { + utf8.EncodeRune(rb[:], up) + rb = shiftNRuneBytes(rb, off) + + idxc := rb[0] + for i, c := range []byte(n.indices) { + // Uppercase matches + if c == idxc { + // Continue with child node + n = n.children[i] + npLen = len(n.path) + continue walk + } + } + } + } + + // Nothing found. We can recommend to redirect to the same URL + // without a trailing slash if a leaf exists for that path + if fixTrailingSlash && path == "/" && n.handlers != nil { + return ciPath + } + return nil + } + + n = n.children[0] + switch n.nType { + case param: + // Find param end (either '/' or path end) + end := 0 + for end < len(path) && path[end] != '/' { + end++ + } + + // Add param value to case insensitive path + ciPath = append(ciPath, path[:end]...) + + // We need to go deeper! + if end < len(path) { + if len(n.children) > 0 { + // Continue with child node + n = n.children[0] + npLen = len(n.path) + path = path[end:] + continue + } + + // ... but we can't + if fixTrailingSlash && len(path) == end+1 { + return ciPath + } + return nil + } + + if n.handlers != nil { + return ciPath + } + + if fixTrailingSlash && len(n.children) == 1 { + // No handle found. Check if a handle for this path + a + // trailing slash exists + n = n.children[0] + if n.path == "/" && n.handlers != nil { + return append(ciPath, '/') + } + } + + return nil + + case catchAll: + return append(ciPath, path...) + + default: + panic("invalid node type") + } + } else { // We should have reached the node containing the handle. // Check if this node has a handle registered. if n.handlers != nil { - return ciPath, true + return ciPath } // No handle found. // Try to fix the path by adding a trailing slash if fixTrailingSlash { - for i := 0; i < len(n.indices); i++ { - if n.indices[i] == '/' { + for i, c := range []byte(n.indices) { + if c == '/' { n = n.children[i] if (len(n.path) == 1 && n.handlers != nil) || (n.nType == catchAll && n.children[0].handlers != nil) { - return append(ciPath, '/'), true + return append(ciPath, '/') } - return + return nil } } } - return - } - - // If this node does not have a wildcard (param or catchAll) child, - // we can just look up the next child node and continue to walk down - // the tree - if !n.wildChild { - r := unicode.ToLower(rune(path[0])) - for i, index := range n.indices { - // must use recursive approach since both index and - // ToLower(index) could exist. We must check both. - if r == unicode.ToLower(index) { - out, found := n.children[i].findCaseInsensitivePath(path, fixTrailingSlash) - if found { - return append(ciPath, out...), true - } - } - } - - // Nothing found. We can recommend to redirect to the same URL - // without a trailing slash if a leaf exists for that path - found = fixTrailingSlash && path == "/" && n.handlers != nil - return - } - - n = n.children[0] - switch n.nType { - case param: - // Find param end (either '/' or path end) - end := 0 - for end < len(path) && path[end] != '/' { - end++ - } - - // add param value to case insensitive path - ciPath = append(ciPath, path[:end]...) - - // we need to go deeper! - if end < len(path) { - if len(n.children) > 0 { - path = path[end:] - n = n.children[0] - continue - } - - // ... but we can't - if fixTrailingSlash && len(path) == end+1 { - return ciPath, true - } - return - } - - if n.handlers != nil { - return ciPath, true - } - if fixTrailingSlash && len(n.children) == 1 { - // No handle found. Check if a handle for this path + a - // trailing slash exists - n = n.children[0] - if n.path == "/" && n.handlers != nil { - return append(ciPath, '/'), true - } - } - return - - case catchAll: - return append(ciPath, path...), true - - default: - panic("invalid node type") + return nil } } @@ -672,13 +758,12 @@ func (n *node) findCaseInsensitivePath(path string, fixTrailingSlash bool) (ciPa // Try to fix the path by adding / removing a trailing slash if fixTrailingSlash { if path == "/" { - return ciPath, true + return ciPath } - if len(path)+1 == len(n.path) && n.path[len(path)] == '/' && - strings.EqualFold(path, n.path[:len(path)]) && - n.handlers != nil { - return append(ciPath, n.path...), true + if len(path)+1 == npLen && n.path[len(path)] == '/' && + strings.EqualFold(path[1:], n.path[1:len(path)]) && n.handlers != nil { + return append(ciPath, n.path...) } } - return + return nil } diff --git a/tree_test.go b/tree_test.go index 0fe2fe0..1cb4f55 100644 --- a/tree_test.go +++ b/tree_test.go @@ -28,6 +28,11 @@ type testRequests []struct { ps Params } +func getParams() *Params { + ps := make(Params, 0, 20) + return &ps +} + func checkRequests(t *testing.T, tree *node, requests testRequests, unescapes ...bool) { unescape := false if len(unescapes) >= 1 { @@ -35,7 +40,7 @@ func checkRequests(t *testing.T, tree *node, requests testRequests, unescapes .. } for _, request := range requests { - value := tree.getValue(request.path, nil, unescape) + value := tree.getValue(request.path, getParams(), unescape) if value.handlers == nil { if !request.nilHandler { @@ -50,9 +55,12 @@ func checkRequests(t *testing.T, tree *node, requests testRequests, unescapes .. } } - if !reflect.DeepEqual(value.params, request.ps) { - t.Errorf("Params mismatch for route '%s'", request.path) + if value.params != nil { + if !reflect.DeepEqual(*value.params, request.ps) { + t.Errorf("Params mismatch for route '%s'", request.path) + } } + } } @@ -76,33 +84,11 @@ func checkPriorities(t *testing.T, n *node) uint32 { return prio } -func checkMaxParams(t *testing.T, n *node) uint8 { - var maxParams uint8 - for i := range n.children { - params := checkMaxParams(t, n.children[i]) - if params > maxParams { - maxParams = params - } - } - if n.nType > root && !n.wildChild { - maxParams++ - } - - if n.maxParams != maxParams { - t.Errorf( - "maxParams mismatch for node '%s': is %d, should be %d", - n.path, n.maxParams, maxParams, - ) - } - - return maxParams -} - func TestCountParams(t *testing.T) { if countParams("/path/:param1/static/*catch-all") != 2 { t.Fail() } - if countParams(strings.Repeat("/:param", 256)) != 255 { + if countParams(strings.Repeat("/:param", 256)) != 256 { t.Fail() } } @@ -142,7 +128,6 @@ func TestTreeAddAndGet(t *testing.T) { }) checkPriorities(t, tree) - checkMaxParams(t, tree) } func TestTreeWildcard(t *testing.T) { @@ -186,7 +171,6 @@ func TestTreeWildcard(t *testing.T) { }) checkPriorities(t, tree) - checkMaxParams(t, tree) } func TestUnescapeParameters(t *testing.T) { @@ -224,7 +208,6 @@ func TestUnescapeParameters(t *testing.T) { }, unescape) checkPriorities(t, tree) - checkMaxParams(t, tree) } func catchPanic(testFunc func()) (recv interface{}) { @@ -323,12 +306,14 @@ func TestTreeDupliatePath(t *testing.T) { } } + //printChildren(tree, "") + checkRequests(t, tree, testRequests{ {"/", false, "/", nil}, {"/doc/", false, "/doc/", nil}, - {"/src/some/file.png", false, "/src/*filepath", Params{Param{Key: "filepath", Value: "/some/file.png"}}}, - {"/search/someth!ng+in+ünìcodé", false, "/search/:query", Params{Param{Key: "query", Value: "someth!ng+in+ünìcodé"}}}, - {"/user_gopher", false, "/user_:name", Params{Param{Key: "name", Value: "gopher"}}}, + {"/src/some/file.png", false, "/src/*filepath", Params{Param{"filepath", "/some/file.png"}}}, + {"/search/someth!ng+in+ünìcodé", false, "/search/:query", Params{Param{"query", "someth!ng+in+ünìcodé"}}}, + {"/user_gopher", false, "/user_:name", Params{Param{"name", "gopher"}}}, }) } @@ -356,6 +341,8 @@ func TestTreeCatchAllConflict(t *testing.T) { {"/src/*filepath/x", true}, {"/src2/", false}, {"/src2/*filepath/x", true}, + {"/src3/*filepath", false}, + {"/src3/*filepath/x", true}, } testRoutes(t, routes) } @@ -372,7 +359,6 @@ func TestTreeCatchMaxParams(t *testing.T) { tree := &node{} var route = "/cmd/*filepath" tree.addRoute(route, fakeHandler(route)) - checkMaxParams(t, tree) } func TestTreeDoubleWildcard(t *testing.T) { @@ -508,6 +494,9 @@ func TestTreeRootTrailingSlashRedirect(t *testing.T) { func TestTreeFindCaseInsensitivePath(t *testing.T) { tree := &node{} + longPath := "/l" + strings.Repeat("o", 128) + "ng" + lOngPath := "/l" + strings.Repeat("O", 128) + "ng/" + routes := [...]string{ "/hi", "/b/", @@ -531,6 +520,17 @@ func TestTreeFindCaseInsensitivePath(t *testing.T) { "/doc/go/away", "/no/a", "/no/b", + "/Π", + "/u/apfêl/", + "/u/äpfêl/", + "/u/öpfêl", + "/v/Äpfêl/", + "/v/Öpfêl", + "/w/♬", // 3 byte + "/w/♭/", // 3 byte, last byte differs + "/w/𠜎", // 4 byte + "/w/𠜏/", // 4 byte + longPath, } for _, route := range routes { @@ -609,6 +609,21 @@ func TestTreeFindCaseInsensitivePath(t *testing.T) { {"/DOC/", "/doc", true, true}, {"/NO", "", false, true}, {"/DOC/GO", "", false, true}, + {"/π", "/Π", true, false}, + {"/π/", "/Π", true, true}, + {"/u/ÄPFÊL/", "/u/äpfêl/", true, false}, + {"/u/ÄPFÊL", "/u/äpfêl/", true, true}, + {"/u/ÖPFÊL/", "/u/öpfêl", true, true}, + {"/u/ÖPFÊL", "/u/öpfêl", true, false}, + {"/v/äpfêL/", "/v/Äpfêl/", true, false}, + {"/v/äpfêL", "/v/Äpfêl/", true, true}, + {"/v/öpfêL/", "/v/Öpfêl", true, true}, + {"/v/öpfêL", "/v/Öpfêl", true, false}, + {"/w/♬/", "/w/♬", true, true}, + {"/w/♭", "/w/♭/", true, true}, + {"/w/𠜎/", "/w/𠜎", true, true}, + {"/w/𠜏", "/w/𠜏/", true, true}, + {lOngPath, longPath, true, true}, } // With fixTrailingSlash = true for _, test := range tests { @@ -696,8 +711,7 @@ func TestTreeWildcardConflictEx(t *testing.T) { tree.addRoute(conflict.route, fakeHandler(conflict.route)) }) - if !regexp.MustCompile(fmt.Sprintf("'%s' in new path .* conflicts with existing wildcard '%s' in existing prefix '%s'", - conflict.segPath, conflict.existSegPath, conflict.existPath)).MatchString(fmt.Sprint(recv)) { + if !regexp.MustCompile(fmt.Sprintf("'%s' in new path .* conflicts with existing wildcard '%s' in existing prefix '%s'", conflict.segPath, conflict.existSegPath, conflict.existPath)).MatchString(fmt.Sprint(recv)) { t.Fatalf("invalid wildcard conflict error (%v)", recv) } }