From 880586bac42817ffcfea5d9f746f503fa29915b8 Mon Sep 17 00:00:00 2001 From: Wim Date: Sat, 28 Jan 2023 22:57:53 +0100 Subject: Update dependencies (#1951) --- vendor/golang.org/x/net/html/token.go | 8 +- vendor/golang.org/x/net/http2/flow.go | 88 +- vendor/golang.org/x/net/http2/h2c/h2c.go | 6 +- vendor/golang.org/x/net/http2/headermap.go | 18 + vendor/golang.org/x/net/http2/hpack/encode.go | 5 + .../golang.org/x/net/http2/hpack/static_table.go | 188 + vendor/golang.org/x/net/http2/hpack/tables.go | 78 +- vendor/golang.org/x/net/http2/server.go | 315 +- vendor/golang.org/x/net/http2/transport.go | 199 +- vendor/golang.org/x/net/publicsuffix/data/children | Bin 0 -> 2876 bytes vendor/golang.org/x/net/publicsuffix/data/nodes | Bin 0 -> 48280 bytes vendor/golang.org/x/net/publicsuffix/data/text | 1 + vendor/golang.org/x/net/publicsuffix/list.go | 36 +- vendor/golang.org/x/net/publicsuffix/table.go | 10552 +------------------ vendor/golang.org/x/net/websocket/websocket.go | 7 +- 15 files changed, 680 insertions(+), 10821 deletions(-) create mode 100644 vendor/golang.org/x/net/http2/hpack/static_table.go create mode 100644 vendor/golang.org/x/net/publicsuffix/data/children create mode 100644 vendor/golang.org/x/net/publicsuffix/data/nodes create mode 100644 vendor/golang.org/x/net/publicsuffix/data/text (limited to 'vendor/golang.org/x/net') diff --git a/vendor/golang.org/x/net/html/token.go b/vendor/golang.org/x/net/html/token.go index be3c7541..ae24a6fd 100644 --- a/vendor/golang.org/x/net/html/token.go +++ b/vendor/golang.org/x/net/html/token.go @@ -605,7 +605,10 @@ func (z *Tokenizer) readComment() { z.data.end = z.data.start } }() - for dashCount := 2; ; { + + var dashCount int + beginning := true + for { c := z.readByte() if z.err != nil { // Ignore up to two dashes at EOF. @@ -620,7 +623,7 @@ func (z *Tokenizer) readComment() { dashCount++ continue case '>': - if dashCount >= 2 { + if dashCount >= 2 || beginning { z.data.end = z.raw.end - len("-->") return } @@ -638,6 +641,7 @@ func (z *Tokenizer) readComment() { } } dashCount = 0 + beginning = false } } diff --git a/vendor/golang.org/x/net/http2/flow.go b/vendor/golang.org/x/net/http2/flow.go index b51f0e0c..750ac52f 100644 --- a/vendor/golang.org/x/net/http2/flow.go +++ b/vendor/golang.org/x/net/http2/flow.go @@ -6,23 +6,91 @@ package http2 -// flow is the flow control window's size. -type flow struct { +// inflowMinRefresh is the minimum number of bytes we'll send for a +// flow control window update. +const inflowMinRefresh = 4 << 10 + +// inflow accounts for an inbound flow control window. +// It tracks both the latest window sent to the peer (used for enforcement) +// and the accumulated unsent window. +type inflow struct { + avail int32 + unsent int32 +} + +// set sets the initial window. +func (f *inflow) init(n int32) { + f.avail = n +} + +// add adds n bytes to the window, with a maximum window size of max, +// indicating that the peer can now send us more data. +// For example, the user read from a {Request,Response} body and consumed +// some of the buffered data, so the peer can now send more. +// It returns the number of bytes to send in a WINDOW_UPDATE frame to the peer. +// Window updates are accumulated and sent when the unsent capacity +// is at least inflowMinRefresh or will at least double the peer's available window. +func (f *inflow) add(n int) (connAdd int32) { + if n < 0 { + panic("negative update") + } + unsent := int64(f.unsent) + int64(n) + // "A sender MUST NOT allow a flow-control window to exceed 2^31-1 octets." + // RFC 7540 Section 6.9.1. + const maxWindow = 1<<31 - 1 + if unsent+int64(f.avail) > maxWindow { + panic("flow control update exceeds maximum window size") + } + f.unsent = int32(unsent) + if f.unsent < inflowMinRefresh && f.unsent < f.avail { + // If there aren't at least inflowMinRefresh bytes of window to send, + // and this update won't at least double the window, buffer the update for later. + return 0 + } + f.avail += f.unsent + f.unsent = 0 + return int32(unsent) +} + +// take attempts to take n bytes from the peer's flow control window. +// It reports whether the window has available capacity. +func (f *inflow) take(n uint32) bool { + if n > uint32(f.avail) { + return false + } + f.avail -= int32(n) + return true +} + +// takeInflows attempts to take n bytes from two inflows, +// typically connection-level and stream-level flows. +// It reports whether both windows have available capacity. +func takeInflows(f1, f2 *inflow, n uint32) bool { + if n > uint32(f1.avail) || n > uint32(f2.avail) { + return false + } + f1.avail -= int32(n) + f2.avail -= int32(n) + return true +} + +// outflow is the outbound flow control window's size. +type outflow struct { _ incomparable // n is the number of DATA bytes we're allowed to send. - // A flow is kept both on a conn and a per-stream. + // An outflow is kept both on a conn and a per-stream. n int32 - // conn points to the shared connection-level flow that is - // shared by all streams on that conn. It is nil for the flow + // conn points to the shared connection-level outflow that is + // shared by all streams on that conn. It is nil for the outflow // that's on the conn directly. - conn *flow + conn *outflow } -func (f *flow) setConnFlow(cf *flow) { f.conn = cf } +func (f *outflow) setConnFlow(cf *outflow) { f.conn = cf } -func (f *flow) available() int32 { +func (f *outflow) available() int32 { n := f.n if f.conn != nil && f.conn.n < n { n = f.conn.n @@ -30,7 +98,7 @@ func (f *flow) available() int32 { return n } -func (f *flow) take(n int32) { +func (f *outflow) take(n int32) { if n > f.available() { panic("internal error: took too much") } @@ -42,7 +110,7 @@ func (f *flow) take(n int32) { // add adds n bytes (positive or negative) to the flow control window. // It returns false if the sum would exceed 2^31-1. -func (f *flow) add(n int32) bool { +func (f *outflow) add(n int32) bool { sum := f.n + n if (sum > n) == (f.n > 0) { f.n = sum diff --git a/vendor/golang.org/x/net/http2/h2c/h2c.go b/vendor/golang.org/x/net/http2/h2c/h2c.go index 2b77ffda..a72bbed1 100644 --- a/vendor/golang.org/x/net/http2/h2c/h2c.go +++ b/vendor/golang.org/x/net/http2/h2c/h2c.go @@ -109,6 +109,7 @@ func (s h2cHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { if http2VerboseLogs { log.Printf("h2c: error h2c upgrade: %v", err) } + w.WriteHeader(http.StatusInternalServerError) return } defer conn.Close() @@ -167,7 +168,10 @@ func h2cUpgrade(w http.ResponseWriter, r *http.Request) (_ net.Conn, settings [] return nil, nil, errors.New("h2c: connection does not support Hijack") } - body, _ := io.ReadAll(r.Body) + body, err := io.ReadAll(r.Body) + if err != nil { + return nil, nil, err + } r.Body = io.NopCloser(bytes.NewBuffer(body)) conn, rw, err := hijacker.Hijack() diff --git a/vendor/golang.org/x/net/http2/headermap.go b/vendor/golang.org/x/net/http2/headermap.go index 9e12941d..149b3dd2 100644 --- a/vendor/golang.org/x/net/http2/headermap.go +++ b/vendor/golang.org/x/net/http2/headermap.go @@ -27,7 +27,14 @@ func buildCommonHeaderMaps() { "accept-language", "accept-ranges", "age", + "access-control-allow-credentials", + "access-control-allow-headers", + "access-control-allow-methods", "access-control-allow-origin", + "access-control-expose-headers", + "access-control-max-age", + "access-control-request-headers", + "access-control-request-method", "allow", "authorization", "cache-control", @@ -53,6 +60,7 @@ func buildCommonHeaderMaps() { "link", "location", "max-forwards", + "origin", "proxy-authenticate", "proxy-authorization", "range", @@ -68,6 +76,8 @@ func buildCommonHeaderMaps() { "vary", "via", "www-authenticate", + "x-forwarded-for", + "x-forwarded-proto", } commonLowerHeader = make(map[string]string, len(common)) commonCanonHeader = make(map[string]string, len(common)) @@ -85,3 +95,11 @@ func lowerHeader(v string) (lower string, ascii bool) { } return asciiToLower(v) } + +func canonicalHeader(v string) string { + buildCommonHeaderMapsOnce() + if s, ok := commonCanonHeader[v]; ok { + return s + } + return http.CanonicalHeaderKey(v) +} diff --git a/vendor/golang.org/x/net/http2/hpack/encode.go b/vendor/golang.org/x/net/http2/hpack/encode.go index 6886dc16..46219da2 100644 --- a/vendor/golang.org/x/net/http2/hpack/encode.go +++ b/vendor/golang.org/x/net/http2/hpack/encode.go @@ -116,6 +116,11 @@ func (e *Encoder) SetMaxDynamicTableSize(v uint32) { e.dynTab.setMaxSize(v) } +// MaxDynamicTableSize returns the current dynamic header table size. +func (e *Encoder) MaxDynamicTableSize() (v uint32) { + return e.dynTab.maxSize +} + // SetMaxDynamicTableSizeLimit changes the maximum value that can be // specified in SetMaxDynamicTableSize to v. By default, it is set to // 4096, which is the same size of the default dynamic header table diff --git a/vendor/golang.org/x/net/http2/hpack/static_table.go b/vendor/golang.org/x/net/http2/hpack/static_table.go new file mode 100644 index 00000000..754a1eb9 --- /dev/null +++ b/vendor/golang.org/x/net/http2/hpack/static_table.go @@ -0,0 +1,188 @@ +// go generate gen.go +// Code generated by the command above; DO NOT EDIT. + +package hpack + +var staticTable = &headerFieldTable{ + evictCount: 0, + byName: map[string]uint64{ + ":authority": 1, + ":method": 3, + ":path": 5, + ":scheme": 7, + ":status": 14, + "accept-charset": 15, + "accept-encoding": 16, + "accept-language": 17, + "accept-ranges": 18, + "accept": 19, + "access-control-allow-origin": 20, + "age": 21, + "allow": 22, + "authorization": 23, + "cache-control": 24, + "content-disposition": 25, + "content-encoding": 26, + "content-language": 27, + "content-length": 28, + "content-location": 29, + "content-range": 30, + "content-type": 31, + "cookie": 32, + "date": 33, + "etag": 34, + "expect": 35, + "expires": 36, + "from": 37, + "host": 38, + "if-match": 39, + "if-modified-since": 40, + "if-none-match": 41, + "if-range": 42, + "if-unmodified-since": 43, + "last-modified": 44, + "link": 45, + "location": 46, + "max-forwards": 47, + "proxy-authenticate": 48, + "proxy-authorization": 49, + "range": 50, + "referer": 51, + "refresh": 52, + "retry-after": 53, + "server": 54, + "set-cookie": 55, + "strict-transport-security": 56, + "transfer-encoding": 57, + "user-agent": 58, + "vary": 59, + "via": 60, + "www-authenticate": 61, + }, + byNameValue: map[pairNameValue]uint64{ + {name: ":authority", value: ""}: 1, + {name: ":method", value: "GET"}: 2, + {name: ":method", value: "POST"}: 3, + {name: ":path", value: "/"}: 4, + {name: ":path", value: "/index.html"}: 5, + {name: ":scheme", value: "http"}: 6, + {name: ":scheme", value: "https"}: 7, + {name: ":status", value: "200"}: 8, + {name: ":status", value: "204"}: 9, + {name: ":status", value: "206"}: 10, + {name: ":status", value: "304"}: 11, + {name: ":status", value: "400"}: 12, + {name: ":status", value: "404"}: 13, + {name: ":status", value: "500"}: 14, + {name: "accept-charset", value: ""}: 15, + {name: "accept-encoding", value: "gzip, deflate"}: 16, + {name: "accept-language", value: ""}: 17, + {name: "accept-ranges", value: ""}: 18, + {name: "accept", value: ""}: 19, + {name: "access-control-allow-origin", value: ""}: 20, + {name: "age", value: ""}: 21, + {name: "allow", value: ""}: 22, + {name: "authorization", value: ""}: 23, + {name: "cache-control", value: ""}: 24, + {name: "content-disposition", value: ""}: 25, + {name: "content-encoding", value: ""}: 26, + {name: "content-language", value: ""}: 27, + {name: "content-length", value: ""}: 28, + {name: "content-location", value: ""}: 29, + {name: "content-range", value: ""}: 30, + {name: "content-type", value: ""}: 31, + {name: "cookie", value: ""}: 32, + {name: "date", value: ""}: 33, + {name: "etag", value: ""}: 34, + {name: "expect", value: ""}: 35, + {name: "expires", value: ""}: 36, + {name: "from", value: ""}: 37, + {name: "host", value: ""}: 38, + {name: "if-match", value: ""}: 39, + {name: "if-modified-since", value: ""}: 40, + {name: "if-none-match", value: ""}: 41, + {name: "if-range", value: ""}: 42, + {name: "if-unmodified-since", value: ""}: 43, + {name: "last-modified", value: ""}: 44, + {name: "link", value: ""}: 45, + {name: "location", value: ""}: 46, + {name: "max-forwards", value: ""}: 47, + {name: "proxy-authenticate", value: ""}: 48, + {name: "proxy-authorization", value: ""}: 49, + {name: "range", value: ""}: 50, + {name: "referer", value: ""}: 51, + {name: "refresh", value: ""}: 52, + {name: "retry-after", value: ""}: 53, + {name: "server", value: ""}: 54, + {name: "set-cookie", value: ""}: 55, + {name: "strict-transport-security", value: ""}: 56, + {name: "transfer-encoding", value: ""}: 57, + {name: "user-agent", value: ""}: 58, + {name: "vary", value: ""}: 59, + {name: "via", value: ""}: 60, + {name: "www-authenticate", value: ""}: 61, + }, + ents: []HeaderField{ + {Name: ":authority", Value: "", Sensitive: false}, + {Name: ":method", Value: "GET", Sensitive: false}, + {Name: ":method", Value: "POST", Sensitive: false}, + {Name: ":path", Value: "/", Sensitive: false}, + {Name: ":path", Value: "/index.html", Sensitive: false}, + {Name: ":scheme", Value: "http", Sensitive: false}, + {Name: ":scheme", Value: "https", Sensitive: false}, + {Name: ":status", Value: "200", Sensitive: false}, + {Name: ":status", Value: "204", Sensitive: false}, + {Name: ":status", Value: "206", Sensitive: false}, + {Name: ":status", Value: "304", Sensitive: false}, + {Name: ":status", Value: "400", Sensitive: false}, + {Name: ":status", Value: "404", Sensitive: false}, + {Name: ":status", Value: "500", Sensitive: false}, + {Name: "accept-charset", Value: "", Sensitive: false}, + {Name: "accept-encoding", Value: "gzip, deflate", Sensitive: false}, + {Name: "accept-language", Value: "", Sensitive: false}, + {Name: "accept-ranges", Value: "", Sensitive: false}, + {Name: "accept", Value: "", Sensitive: false}, + {Name: "access-control-allow-origin", Value: "", Sensitive: false}, + {Name: "age", Value: "", Sensitive: false}, + {Name: "allow", Value: "", Sensitive: false}, + {Name: "authorization", Value: "", Sensitive: false}, + {Name: "cache-control", Value: "", Sensitive: false}, + {Name: "content-disposition", Value: "", Sensitive: false}, + {Name: "content-encoding", Value: "", Sensitive: false}, + {Name: "content-language", Value: "", Sensitive: false}, + {Name: "content-length", Value: "", Sensitive: false}, + {Name: "content-location", Value: "", Sensitive: false}, + {Name: "content-range", Value: "", Sensitive: false}, + {Name: "content-type", Value: "", Sensitive: false}, + {Name: "cookie", Value: "", Sensitive: false}, + {Name: "date", Value: "", Sensitive: false}, + {Name: "etag", Value: "", Sensitive: false}, + {Name: "expect", Value: "", Sensitive: false}, + {Name: "expires", Value: "", Sensitive: false}, + {Name: "from", Value: "", Sensitive: false}, + {Name: "host", Value: "", Sensitive: false}, + {Name: "if-match", Value: "", Sensitive: false}, + {Name: "if-modified-since", Value: "", Sensitive: false}, + {Name: "if-none-match", Value: "", Sensitive: false}, + {Name: "if-range", Value: "", Sensitive: false}, + {Name: "if-unmodified-since", Value: "", Sensitive: false}, + {Name: "last-modified", Value: "", Sensitive: false}, + {Name: "link", Value: "", Sensitive: false}, + {Name: "location", Value: "", Sensitive: false}, + {Name: "max-forwards", Value: "", Sensitive: false}, + {Name: "proxy-authenticate", Value: "", Sensitive: false}, + {Name: "proxy-authorization", Value: "", Sensitive: false}, + {Name: "range", Value: "", Sensitive: false}, + {Name: "referer", Value: "", Sensitive: false}, + {Name: "refresh", Value: "", Sensitive: false}, + {Name: "retry-after", Value: "", Sensitive: false}, + {Name: "server", Value: "", Sensitive: false}, + {Name: "set-cookie", Value: "", Sensitive: false}, + {Name: "strict-transport-security", Value: "", Sensitive: false}, + {Name: "transfer-encoding", Value: "", Sensitive: false}, + {Name: "user-agent", Value: "", Sensitive: false}, + {Name: "vary", Value: "", Sensitive: false}, + {Name: "via", Value: "", Sensitive: false}, + {Name: "www-authenticate", Value: "", Sensitive: false}, + }, +} diff --git a/vendor/golang.org/x/net/http2/hpack/tables.go b/vendor/golang.org/x/net/http2/hpack/tables.go index a66cfbea..8cbdf3f0 100644 --- a/vendor/golang.org/x/net/http2/hpack/tables.go +++ b/vendor/golang.org/x/net/http2/hpack/tables.go @@ -96,8 +96,7 @@ func (t *headerFieldTable) evictOldest(n int) { // meaning t.ents is reversed for dynamic tables. Hence, when t is a dynamic // table, the return value i actually refers to the entry t.ents[t.len()-i]. // -// All tables are assumed to be a dynamic tables except for the global -// staticTable pointer. +// All tables are assumed to be a dynamic tables except for the global staticTable. // // See Section 2.3.3. func (t *headerFieldTable) search(f HeaderField) (i uint64, nameValueMatch bool) { @@ -125,81 +124,6 @@ func (t *headerFieldTable) idToIndex(id uint64) uint64 { return k + 1 } -// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07#appendix-B -var staticTable = newStaticTable() -var staticTableEntries = [...]HeaderField{ - {Name: ":authority"}, - {Name: ":method", Value: "GET"}, - {Name: ":method", Value: "POST"}, - {Name: ":path", Value: "/"}, - {Name: ":path", Value: "/index.html"}, - {Name: ":scheme", Value: "http"}, - {Name: ":scheme", Value: "https"}, - {Name: ":status", Value: "200"}, - {Name: ":status", Value: "204"}, - {Name: ":status", Value: "206"}, - {Name: ":status", Value: "304"}, - {Name: ":status", Value: "400"}, - {Name: ":status", Value: "404"}, - {Name: ":status", Value: "500"}, - {Name: "accept-charset"}, - {Name: "accept-encoding", Value: "gzip, deflate"}, - {Name: "accept-language"}, - {Name: "accept-ranges"}, - {Name: "accept"}, - {Name: "access-control-allow-origin"}, - {Name: "age"}, - {Name: "allow"}, - {Name: "authorization"}, - {Name: "cache-control"}, - {Name: "content-disposition"}, - {Name: "content-encoding"}, - {Name: "content-language"}, - {Name: "content-length"}, - {Name: "content-location"}, - {Name: "content-range"}, - {Name: "content-type"}, - {Name: "cookie"}, - {Name: "date"}, - {Name: "etag"}, - {Name: "expect"}, - {Name: "expires"}, - {Name: "from"}, - {Name: "host"}, - {Name: "if-match"}, - {Name: "if-modified-since"}, - {Name: "if-none-match"}, - {Name: "if-range"}, - {Name: "if-unmodified-since"}, - {Name: "last-modified"}, - {Name: "link"}, - {Name: "location"}, - {Name: "max-forwards"}, - {Name: "proxy-authenticate"}, - {Name: "proxy-authorization"}, - {Name: "range"}, - {Name: "referer"}, - {Name: "refresh"}, - {Name: "retry-after"}, - {Name: "server"}, - {Name: "set-cookie"}, - {Name: "strict-transport-security"}, - {Name: "transfer-encoding"}, - {Name: "user-agent"}, - {Name: "vary"}, - {Name: "via"}, - {Name: "www-authenticate"}, -} - -func newStaticTable() *headerFieldTable { - t := &headerFieldTable{} - t.init() - for _, e := range staticTableEntries[:] { - t.addEntry(e) - } - return t -} - var huffmanCodes = [256]uint32{ 0x1ff8, 0x7fffd8, diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go index 43cc2a34..b624dc0a 100644 --- a/vendor/golang.org/x/net/http2/server.go +++ b/vendor/golang.org/x/net/http2/server.go @@ -98,6 +98,19 @@ type Server struct { // the HTTP/2 spec's recommendations. MaxConcurrentStreams uint32 + // MaxDecoderHeaderTableSize optionally specifies the http2 + // SETTINGS_HEADER_TABLE_SIZE to send in the initial settings frame. It + // informs the remote endpoint of the maximum size of the header compression + // table used to decode header blocks, in octets. If zero, the default value + // of 4096 is used. + MaxDecoderHeaderTableSize uint32 + + // MaxEncoderHeaderTableSize optionally specifies an upper limit for the + // header compression table used for encoding request headers. Received + // SETTINGS_HEADER_TABLE_SIZE settings are capped at this limit. If zero, + // the default value of 4096 is used. + MaxEncoderHeaderTableSize uint32 + // MaxReadFrameSize optionally specifies the largest frame // this server is willing to read. A valid value is between // 16k and 16M, inclusive. If zero or otherwise invalid, a @@ -170,6 +183,20 @@ func (s *Server) maxConcurrentStreams() uint32 { return defaultMaxStreams } +func (s *Server) maxDecoderHeaderTableSize() uint32 { + if v := s.MaxDecoderHeaderTableSize; v > 0 { + return v + } + return initialHeaderTableSize +} + +func (s *Server) maxEncoderHeaderTableSize() uint32 { + if v := s.MaxEncoderHeaderTableSize; v > 0 { + return v + } + return initialHeaderTableSize +} + // maxQueuedControlFrames is the maximum number of control frames like // SETTINGS, PING and RST_STREAM that will be queued for writing before // the connection is closed to prevent memory exhaustion attacks. @@ -394,7 +421,6 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) { advMaxStreams: s.maxConcurrentStreams(), initialStreamSendWindowSize: initialWindowSize, maxFrameSize: initialMaxFrameSize, - headerTableSize: initialHeaderTableSize, serveG: newGoroutineLock(), pushEnabled: true, sawClientPreface: opts.SawClientPreface, @@ -422,14 +448,15 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) { // configured value for inflow, that will be updated when we send a // WINDOW_UPDATE shortly after sending SETTINGS. sc.flow.add(initialWindowSize) - sc.inflow.add(initialWindowSize) + sc.inflow.init(initialWindowSize) sc.hpackEncoder = hpack.NewEncoder(&sc.headerWriteBuf) + sc.hpackEncoder.SetMaxDynamicTableSizeLimit(s.maxEncoderHeaderTableSize()) fr := NewFramer(sc.bw, c) if s.CountError != nil { fr.countError = s.CountError } - fr.ReadMetaHeaders = hpack.NewDecoder(initialHeaderTableSize, nil) + fr.ReadMetaHeaders = hpack.NewDecoder(s.maxDecoderHeaderTableSize(), nil) fr.MaxHeaderListSize = sc.maxHeaderListSize() fr.SetMaxReadFrameSize(s.maxReadFrameSize()) sc.framer = fr @@ -536,8 +563,8 @@ type serverConn struct { wroteFrameCh chan frameWriteResult // from writeFrameAsync -> serve, tickles more frame writes bodyReadCh chan bodyReadMsg // from handlers -> serve serveMsgCh chan interface{} // misc messages & code to send to / run on the serve loop - flow flow // conn-wide (not stream-specific) outbound flow control - inflow flow // conn-wide inbound flow control + flow outflow // conn-wide (not stream-specific) outbound flow control + inflow inflow // conn-wide inbound flow control tlsState *tls.ConnectionState // shared by all handlers, like net/http remoteAddrStr string writeSched WriteScheduler @@ -559,9 +586,9 @@ type serverConn struct { streams map[uint32]*stream initialStreamSendWindowSize int32 maxFrameSize int32 - headerTableSize uint32 peerMaxHeaderListSize uint32 // zero means unknown (default) canonHeader map[string]string // http2-lower-case -> Go-Canonical-Case + canonHeaderKeysSize int // canonHeader keys size in bytes writingFrame bool // started writing a frame (on serve goroutine or separate) writingFrameAsync bool // started a frame on its own goroutine but haven't heard back on wroteFrameCh needsFrameFlush bool // last frame write wasn't a flush @@ -614,15 +641,17 @@ type stream struct { cancelCtx func() // owned by serverConn's serve loop: - bodyBytes int64 // body bytes seen so far - declBodyBytes int64 // or -1 if undeclared - flow flow // limits writing from Handler to client - inflow flow // what the client is allowed to POST/etc to us + bodyBytes int64 // body bytes seen so far + declBodyBytes int64 // or -1 if undeclared + flow outflow // limits writing from Handler to client + inflow inflow // what the client is allowed to POST/etc to us state streamState resetQueued bool // RST_STREAM queued for write; set by sc.resetStream gotTrailerHeader bool // HEADER frame for trailers was seen wroteHeaders bool // whether we wrote headers (not status 100) + readDeadline *time.Timer // nil if unused writeDeadline *time.Timer // nil if unused + closeErr error // set before cw is closed trailer http.Header // accumulated trailers reqTrailer http.Header // handler's Request.Trailer @@ -738,6 +767,13 @@ func (sc *serverConn) condlogf(err error, format string, args ...interface{}) { } } +// maxCachedCanonicalHeadersKeysSize is an arbitrarily-chosen limit on the size +// of the entries in the canonHeader cache. +// This should be larger than the size of unique, uncommon header keys likely to +// be sent by the peer, while not so high as to permit unreasonable memory usage +// if the peer sends an unbounded number of unique header keys. +const maxCachedCanonicalHeadersKeysSize = 2048 + func (sc *serverConn) canonicalHeader(v string) string { sc.serveG.check() buildCommonHeaderMapsOnce() @@ -753,14 +789,10 @@ func (sc *serverConn) canonicalHeader(v string) string { sc.canonHeader = make(map[string]string) } cv = http.CanonicalHeaderKey(v) - // maxCachedCanonicalHeaders is an arbitrarily-chosen limit on the number of - // entries in the canonHeader cache. This should be larger than the number - // of unique, uncommon header keys likely to be sent by the peer, while not - // so high as to permit unreasonable memory usage if the peer sends an unbounded - // number of unique header keys. - const maxCachedCanonicalHeaders = 32 - if len(sc.canonHeader) < maxCachedCanonicalHeaders { + size := 100 + len(v)*2 // 100 bytes of map overhead + key + value + if sc.canonHeaderKeysSize+size <= maxCachedCanonicalHeadersKeysSize { sc.canonHeader[v] = cv + sc.canonHeaderKeysSize += size } return cv } @@ -862,6 +894,7 @@ func (sc *serverConn) serve() { {SettingMaxFrameSize, sc.srv.maxReadFrameSize()}, {SettingMaxConcurrentStreams, sc.advMaxStreams}, {SettingMaxHeaderListSize, sc.maxHeaderListSize()}, + {SettingHeaderTableSize, sc.srv.maxDecoderHeaderTableSize()}, {SettingInitialWindowSize, uint32(sc.srv.initialStreamRecvWindowSize())}, }, }) @@ -869,7 +902,9 @@ func (sc *serverConn) serve() { // Each connection starts with initialWindowSize inflow tokens. // If a higher value is configured, we add more tokens. - sc.sendWindowUpdate(nil) + if diff := sc.srv.initialConnRecvWindowSize() - initialWindowSize; diff > 0 { + sc.sendWindowUpdate(nil, int(diff)) + } if err := sc.readPreface(); err != nil { sc.condlogf(err, "http2: server: error reading preface from client %v: %v", sc.conn.RemoteAddr(), err) @@ -946,6 +981,8 @@ func (sc *serverConn) serve() { } case *startPushRequest: sc.startPush(v) + case func(*serverConn): + v(sc) default: panic(fmt.Sprintf("unexpected type %T", v)) } @@ -1459,6 +1496,21 @@ func (sc *serverConn) processFrame(f Frame) error { sc.sawFirstSettings = true } + // Discard frames for streams initiated after the identified last + // stream sent in a GOAWAY, or all frames after sending an error. + // We still need to return connection-level flow control for DATA frames. + // RFC 9113 Section 6.8. + if sc.inGoAway && (sc.goAwayCode != ErrCodeNo || f.Header().StreamID > sc.maxClientStreamID) { + + if f, ok := f.(*DataFrame); ok { + if !sc.inflow.take(f.Length) { + return sc.countError("data_flow", streamError(f.Header().StreamID, ErrCodeFlowControl)) + } + sc.sendWindowUpdate(nil, int(f.Length)) // conn-level + } + return nil + } + switch f := f.(type) { case *SettingsFrame: return sc.processSettings(f) @@ -1501,9 +1553,6 @@ func (sc *serverConn) processPing(f *PingFrame) error { // PROTOCOL_ERROR." return sc.countError("ping_on_stream", ConnectionError(ErrCodeProtocol)) } - if sc.inGoAway && sc.goAwayCode != ErrCodeNo { - return nil - } sc.writeFrame(FrameWriteRequest{write: writePingAck{f}}) return nil } @@ -1565,6 +1614,9 @@ func (sc *serverConn) closeStream(st *stream, err error) { panic(fmt.Sprintf("invariant; can't close stream in state %v", st.state)) } st.state = stateClosed + if st.readDeadline != nil { + st.readDeadline.Stop() + } if st.writeDeadline != nil { st.writeDeadline.Stop() } @@ -1586,10 +1638,18 @@ func (sc *serverConn) closeStream(st *stream, err error) { if p := st.body; p != nil { // Return any buffered unread bytes worth of conn-level flow control. // See golang.org/issue/16481 - sc.sendWindowUpdate(nil) + sc.sendWindowUpdate(nil, p.Len()) p.CloseWithError(err) } + if e, ok := err.(StreamError); ok { + if e.Cause != nil { + err = e.Cause + } else { + err = errStreamClosed + } + } + st.closeErr = err st.cw.Close() // signals Handler's CloseNotifier, unblocks writes, etc sc.writeSched.CloseStream(st.id) } @@ -1632,7 +1692,6 @@ func (sc *serverConn) processSetting(s Setting) error { } switch s.ID { case SettingHeaderTableSize: - sc.headerTableSize = s.Val sc.hpackEncoder.SetMaxDynamicTableSize(s.Val) case SettingEnablePush: sc.pushEnabled = s.Val != 0 @@ -1686,16 +1745,6 @@ func (sc *serverConn) processSettingInitialWindowSize(val uint32) error { func (sc *serverConn) processData(f *DataFrame) error { sc.serveG.check() id := f.Header().StreamID - if sc.inGoAway && (sc.goAwayCode != ErrCodeNo || id > sc.maxClientStreamID) { - // Discard all DATA frames if the GOAWAY is due to an - // error, or: - // - // Section 6.8: After sending a GOAWAY frame, the sender - // can discard frames for streams initiated by the - // receiver with identifiers higher than the identified - // last stream. - return nil - } data := f.Data() state, st := sc.state(id) @@ -1726,15 +1775,10 @@ func (sc *serverConn) processData(f *DataFrame) error { // But still enforce their connection-level flow control, // and return any flow control bytes since we're not going // to consume them. - if sc.inflow.available() < int32(f.Length) { + if !sc.inflow.take(f.Length) { return sc.countError("data_flow", streamError(id, ErrCodeFlowControl)) } - // Deduct the flow control from inflow, since we're - // going to immediately add it back in - // sendWindowUpdate, which also schedules sending the - // frames. - sc.inflow.take(int32(f.Length)) - sc.sendWindowUpdate(nil) // conn-level + sc.sendWindowUpdate(nil, int(f.Length)) // conn-level if st != nil && st.resetQueued { // Already have a stream error in flight. Don't send another. @@ -1748,11 +1792,10 @@ func (sc *serverConn) processData(f *DataFrame) error { // Sender sending more than they'd declared? if st.declBodyBytes != -1 && st.bodyBytes+int64(len(data)) > st.declBodyBytes { - if sc.inflow.available() < int32(f.Length) { + if !sc.inflow.take(f.Length) { return sc.countError("data_flow", streamError(id, ErrCodeFlowControl)) } - sc.inflow.take(int32(f.Length)) - sc.sendWindowUpdate(nil) // conn-level + sc.sendWindowUpdate(nil, int(f.Length)) // conn-level st.body.CloseWithError(fmt.Errorf("sender tried to send more than declared Content-Length of %d bytes", st.declBodyBytes)) // RFC 7540, sec 8.1.2.6: A request or response is also malformed if the @@ -1762,15 +1805,14 @@ func (sc *serverConn) processData(f *DataFrame) error { } if f.Length > 0 { // Check whether the client has flow control quota. - if st.inflow.available() < int32(f.Length) { + if !takeInflows(&sc.inflow, &st.inflow, f.Length) { return sc.countError("flow_on_data_length", streamError(id, ErrCodeFlowControl)) } - st.inflow.take(int32(f.Length)) if len(data) > 0 { wrote, err := st.body.Write(data) if err != nil { - sc.sendWindowUpdate32(nil, int32(f.Length)-int32(wrote)) + sc.sendWindowUpdate(nil, int(f.Length)-wrote) return sc.countError("body_write_err", streamError(id, ErrCodeStreamClosed)) } if wrote != len(data) { @@ -1781,10 +1823,12 @@ func (sc *serverConn) processData(f *DataFrame) error { // Return any padded flow control now, since we won't // refund it later on body reads. - if pad := int32(f.Length) - int32(len(data)); pad > 0 { - sc.sendWindowUpdate32(nil, pad) - sc.sendWindowUpdate32(st, pad) - } + // Call sendWindowUpdate even if there is no padding, + // to return buffered flow control credit if the sent + // window has shrunk. + pad := int32(f.Length) - int32(len(data)) + sc.sendWindowUpdate32(nil, pad) + sc.sendWindowUpdate32(st, pad) } if f.StreamEnded() { st.endStream() @@ -1838,19 +1882,27 @@ func (st *stream) copyTrailersToHandlerRequest() { } } +// onReadTimeout is run on its own goroutine (from time.AfterFunc) +// when the stream's ReadTimeout has fired. +func (st *stream) onReadTimeout() { + // Wrap the ErrDeadlineExceeded to avoid callers depending on us + // returning the bare error. + st.body.CloseWithError(fmt.Errorf("%w", os.ErrDeadlineExceeded)) +} + // onWriteTimeout is run on its own goroutine (from time.AfterFunc) // when the stream's WriteTimeout has fired. func (st *stream) onWriteTimeout() { - st.sc.writeFrameFromHandler(FrameWriteRequest{write: streamError(st.id, ErrCodeInternal)}) + st.sc.writeFrameFromHandler(FrameWriteRequest{write: StreamError{ + StreamID: st.id, + Code: ErrCodeInternal, + Cause: os.ErrDeadlineExceeded, + }}) } func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error { sc.serveG.check() id := f.StreamID - if sc.inGoAway { - // Ignore. - return nil - } // http://tools.ietf.org/html/rfc7540#section-5.1.1 // Streams initiated by a client MUST use odd-numbered stream // identifiers. [...] An endpoint that receives an unexpected @@ -1953,6 +2005,9 @@ func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error { // (in Go 1.8), though. That's a more sane option anyway. if sc.hs.ReadTimeout != 0 { sc.conn.SetReadDeadline(time.Time{}) + if st.body != nil { + st.readDeadline = time.AfterFunc(sc.hs.ReadTimeout, st.onReadTimeout) + } } go sc.runHandler(rw, req, handler) @@ -2021,9 +2076,6 @@ func (sc *serverConn) checkPriority(streamID uint32, p PriorityParam) error { } func (sc *serverConn) processPriority(f *PriorityFrame) error { - if sc.inGoAway { - return nil - } if err := sc.checkPriority(f.StreamID, f.PriorityParam); err != nil { return err } @@ -2048,8 +2100,7 @@ func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream st.cw.Init() st.flow.conn = &sc.flow // link to conn-level counter st.flow.add(sc.initialStreamSendWindowSize) - st.inflow.conn = &sc.inflow // link to conn-level counter - st.inflow.add(sc.srv.initialStreamRecvWindowSize()) + st.inflow.init(sc.srv.initialStreamRecvWindowSize()) if sc.hs.WriteTimeout != 0 { st.writeDeadline = time.AfterFunc(sc.hs.WriteTimeout, st.onWriteTimeout) } @@ -2322,71 +2373,37 @@ func (sc *serverConn) noteBodyReadFromHandler(st *stream, n int, err error) { func (sc *serverConn) noteBodyRead(st *stream, n int) { sc.serveG.check() - sc.sendWindowUpdate(nil) // conn-level + sc.sendWindowUpdate(nil, n) // conn-level if st.state != stateHalfClosedRemote && st.state != stateClosed { // Don't send this WINDOW_UPDATE if the stream is closed // remotely. - sc.sendWindowUpdate(st) + sc.sendWindowUpdate(st, n) } } // st may be nil for conn-level -func (sc *serverConn) sendWindowUpdate(st *stream) { - sc.serveG.check() - - var n int32 - if st == nil { - if avail, windowSize := sc.inflow.available(), sc.srv.initialConnRecvWindowSize(); avail > windowSize/2 { - return - } else { - n = windowSize - avail - } - } else { - if avail, windowSize := st.inflow.available(), sc.srv.initialStreamRecvWindowSize(); avail > windowSize/2 { - return - } else { - n = windowSize - avail - } - } - // "The legal range for the increment to the flow control - // window is 1 to 2^31-1 (2,147,483,647) octets." - // A Go Read call on 64-bit machines could in theory read - // a larger Read than this. Very unlikely, but we handle it here - // rather than elsewhere for now. - const maxUint31 = 1<<31 - 1 - for n >= maxUint31 { - sc.sendWindowUpdate32(st, maxUint31) - n -= maxUint31 - } - sc.sendWindowUpdate32(st, int32(n)) +func (sc *serverConn) sendWindowUpdate32(st *stream, n int32) { + sc.sendWindowUpdate(st, int(n)) } // st may be nil for conn-level -func (sc *serverConn) sendWindowUpdate32(st *stream, n int32) { +func (sc *serverConn) sendWindowUpdate(st *stream, n int) { sc.serveG.check() - if n == 0 { - return - } - if n < 0 { - panic("negative update") - } var streamID uint32 - if st != nil { + var send int32 + if st == nil { + send = sc.inflow.add(n) + } else { streamID = st.id + send = st.inflow.add(n) + } + if send == 0 { + return } sc.writeFrame(FrameWriteRequest{ - write: writeWindowUpdate{streamID: streamID, n: uint32(n)}, + write: writeWindowUpdate{streamID: streamID, n: uint32(send)}, stream: st, }) - var ok bool - if st == nil { - ok = sc.inflow.add(n) - } else { - ok = st.inflow.add(n) - } - if !ok { - panic("internal error; sent too many window updates without decrements?") - } } // requestBody is the Handler's Request.Body type. @@ -2474,7 +2491,15 @@ type responseWriterState struct { type chunkWriter struct{ rws *responseWriterState } -func (cw chunkWriter) Write(p []byte) (n int, err error) { return cw.rws.writeChunk(p) } +func (cw chunkWriter) Write(p []byte) (n int, err error) { + n, err = cw.rws.writeChunk(p) + if err == errStreamClosed { + // If writing failed because the stream has been closed, + // return the reason it was closed. + err = cw.rws.stream.closeErr + } + return n, err +} func (rws *responseWriterState) hasTrailers() bool { return len(rws.trailers) > 0 } @@ -2668,23 +2693,85 @@ func (rws *responseWriterState) promoteUndeclaredTrailers() { } } +func (w *responseWriter) SetReadDeadline(deadline time.Time) error { + st := w.rws.stream + if !deadline.IsZero() && deadline.Before(time.Now()) { + // If we're setting a deadline in the past, reset the stream immediately + // so writes after SetWriteDeadline returns will fail. + st.onReadTimeout() + return nil + } + w.rws.conn.sendServeMsg(func(sc *serverConn) { + if st.readDeadline != nil { + if !st.readDeadline.Stop() { + // Deadline already exceeded, or stream has been closed. + return + } + } + if deadline.IsZero() { + st.readDeadline = nil + } else if st.readDeadline == nil { + st.readDeadline = time.AfterFunc(deadline.Sub(time.Now()), st.onReadTimeout) + } else { + st.readDeadline.Reset(deadline.Sub(time.Now())) + } + }) + return nil +} + +func (w *responseWriter) SetWriteDeadline(deadline time.Time) error { + st := w.rws.stream + if !deadline.IsZero() && deadline.Before(time.Now()) { + // If we're setting a deadline in the past, reset the stream immediately + // so writes after SetWriteDeadline returns will fail. + st.onWriteTimeout() + return nil + } + w.rws.conn.sendServeMsg(func(sc *serverConn) { + if st.writeDeadline != nil { + if !st.writeDeadline.Stop() { + // Deadline already exceeded, or stream has been closed. + return + } + } + if deadline.IsZero() { + st.writeDeadline = nil + } else if st.writeDeadline == nil { + st.writeDeadline = time.AfterFunc(deadline.Sub(time.Now()), st.onWriteTimeout) + } else { + st.writeDeadline.Reset(deadline.Sub(time.Now())) + } + }) + return nil +} + func (w *responseWriter) Flush() { + w.FlushError() +} + +func (w *responseWriter) FlushError() error { rws := w.rws if rws == nil { panic("Header called after Handler finished") } + var err error if rws.bw.Buffered() > 0 { - if err := rws.bw.Flush(); err != nil { - // Ignore the error. The frame writer already knows. - return - } + err = rws.bw.Flush() } else { // The bufio.Writer won't call chunkWriter.Write // (writeChunk with zero bytes, so we have to do it // ourselves to force the HTTP response header and/or // final DATA frame (with END_STREAM) to be sent. - rws.writeChunk(nil) + _, err = chunkWriter{rws}.Write(nil) + if err == nil { + select { + case <-rws.stream.cw: + err = rws.stream.closeErr + default: + } + } } + return err } func (w *responseWriter) CloseNotify() <-chan bool { diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go index c5d005bb..b43ec10c 100644 --- a/vendor/golang.org/x/net/http2/transport.go +++ b/vendor/golang.org/x/net/http2/transport.go @@ -16,6 +16,7 @@ import ( "errors" "fmt" "io" + "io/fs" "log" "math" mathrand "math/rand" @@ -46,10 +47,6 @@ const ( // we buffer per stream. transportDefaultStreamFlow = 4 << 20 - // transportDefaultStreamMinRefresh is the minimum number of bytes we'll send - // a stream-level WINDOW_UPDATE for at a time. - transportDefaultStreamMinRefresh = 4 << 10 - defaultUserAgent = "Go-http-client/2.0" // initialMaxConcurrentStreams is a connections maxConcurrentStreams until @@ -117,6 +114,28 @@ type Transport struct { // to mean no limit. MaxHeaderListSize uint32 + // MaxReadFrameSize is the http2 SETTINGS_MAX_FRAME_SIZE to send in the + // initial settings frame. It is the size in bytes of the largest frame + // payload that the sender is willing to receive. If 0, no setting is + // sent, and the value is provided by the peer, which should be 16384 + // according to the spec: + // https://datatracker.ietf.org/doc/html/rfc7540#section-6.5.2. + // Values are bounded in the range 16k to 16M. + MaxReadFrameSize uint32 + + // MaxDecoderHeaderTableSize optionally specifies the http2 + // SETTINGS_HEADER_TABLE_SIZE to send in the initial settings frame. It + // informs the remote endpoint of the maximum size of the header compression + // table used to decode header blocks, in octets. If zero, the default value + // of 4096 is used. + MaxDecoderHeaderTableSize uint32 + + // MaxEncoderHeaderTableSize optionally specifies an upper limit for the + // header compression table used for encoding request headers. Received + // SETTINGS_HEADER_TABLE_SIZE settings are capped at this limit. If zero, + // the default value of 4096 is used. + MaxEncoderHeaderTableSize uint32 + // StrictMaxConcurrentStreams controls whether the server's // SETTINGS_MAX_CONCURRENT_STREAMS should be respected // globally. If false, new TCP connections are created to the @@ -170,6 +189,19 @@ func (t *Transport) maxHeaderListSize() uint32 { return t.MaxHeaderListSize } +func (t *Transport) maxFrameReadSize() uint32 { + if t.MaxReadFrameSize == 0 { + return 0 // use the default provided by the peer + } + if t.MaxReadFrameSize < minMaxFrameSize { + return minMaxFrameSize + } + if t.MaxReadFrameSize > maxFrameSize { + return maxFrameSize + } + return t.MaxReadFrameSize +} + func (t *Transport) disableCompression() bool { return t.DisableCompression || (t.t1 != nil && t.t1.DisableCompression) } @@ -274,8 +306,8 @@ type ClientConn struct { mu sync.Mutex // guards following cond *sync.Cond // hold mu; broadcast on flow/closed changes - flow flow // our conn-level flow control quota (cs.flow is per stream) - inflow flow // peer's conn-level flow control + flow outflow // our conn-level flow control quota (cs.outflow is per stream) + inflow inflow // peer's conn-level flow control doNotReuse bool // whether conn is marked to not be reused for any future requests closing bool closed bool @@ -292,10 +324,11 @@ type ClientConn struct { lastActive time.Time lastIdle time.Time // time last idle // Settings from peer: (also guarded by wmu) - maxFrameSize uint32 - maxConcurrentStreams uint32 - peerMaxHeaderListSize uint64 - initialWindowSize uint32 + maxFrameSize uint32 + maxConcurrentStreams uint32 + peerMaxHeaderListSize uint64 + peerMaxHeaderTableSize uint32 + initialWindowSize uint32 // reqHeaderMu is a 1-element semaphore channel controlling access to sending new requests. // Write to reqHeaderMu to lock it, read from it to unlock. @@ -339,10 +372,10 @@ type clientStream struct { respHeaderRecv chan struct{} // closed when headers are received res *http.Response // set if respHeaderRecv is closed - flow flow // guarded by cc.mu - inflow flow // guarded by cc.mu - bytesRemain int64 // -1 means unknown; owned by transportResponseBody.Read - readErr error // sticky read error; owned by transportResponseBody.Read + flow outflow // guarded by cc.mu + inflow inflow // guarded by cc.mu + bytesRemain int64 // -1 means unknown; owned by transportResponseBody.Read + readErr error // sticky read error; owned by transportResponseBody.Read reqBody io.ReadCloser reqBodyContentLength int64 // -1 means unknown @@ -501,6 +534,15 @@ func authorityAddr(scheme string, authority string) (addr string) { return net.JoinHostPort(host, port) } +var retryBackoffHook func(time.Duration) *time.Timer + +func backoffNewTimer(d time.Duration) *time.Timer { + if retryBackoffHook != nil { + return retryBackoffHook(d) + } + return time.NewTimer(d) +} + // RoundTripOpt is like RoundTrip, but takes options. func (t *Transport) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Response, error) { if !(req.URL.Scheme == "https" || (req.URL.Scheme == "http" && t.AllowHTTP)) { @@ -526,11 +568,14 @@ func (t *Transport) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Res } backoff := float64(uint(1) << (uint(retry) - 1)) backoff += backoff * (0.1 * mathrand.Float64()) + d := time.Second * time.Duration(backoff) + timer := backoffNewTimer(d) select { - case <-time.After(time.Second * time.Duration(backoff)): + case <-timer.C: t.vlogf("RoundTrip retrying after failure: %v", err) continue case <-req.Context().Done(): + timer.Stop() err = req.Context().Err() } } @@ -668,6 +713,20 @@ func (t *Transport) expectContinueTimeout() time.Duration { return t.t1.ExpectContinueTimeout } +func (t *Transport) maxDecoderHeaderTableSize() uint32 { + if v := t.MaxDecoderHeaderTableSize; v > 0 { + return v + } + return initialHeaderTableSize +} + +func (t *Transport) maxEncoderHeaderTableSize() uint32 { + if v := t.MaxEncoderHeaderTableSize; v > 0 { + return v + } + return initialHeaderTableSize +} + func (t *Transport) NewClientConn(c net.Conn) (*ClientConn, error) { return t.newClientConn(c, t.disableKeepAlives()) } @@ -708,15 +767,19 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro }) cc.br = bufio.NewReader(c) cc.fr = NewFramer(cc.bw, cc.br) + if t.maxFrameReadSize() != 0 { + cc.fr.SetMaxReadFrameSize(t.maxFrameReadSize()) + } if t.CountError != nil { cc.fr.countError = t.CountError } - cc.fr.ReadMetaHeaders = hpack.NewDecoder(initialHeaderTableSize, nil) + maxHeaderTableSize := t.maxDecoderHeaderTableSize() + cc.fr.ReadMetaHeaders = hpack.NewDecoder(maxHeaderTableSize, nil) cc.fr.MaxHeaderListSize = t.maxHeaderListSize() - // TODO: SetMaxDynamicTableSize, SetMaxDynamicTableSizeLimit on - // henc in response to SETTINGS frames? cc.henc = hpack.NewEncoder(&cc.hbuf) + cc.henc.SetMaxDynamicTableSizeLimit(t.maxEncoderHeaderTableSize()) + cc.peerMaxHeaderTableSize = initialHeaderTableSize if t.AllowHTTP { cc.nextStreamID = 3 @@ -731,14 +794,20 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro {ID: SettingEnablePush, Val: 0}, {ID: SettingInitialWindowSize, Val: transportDefaultStreamFlow}, } + if max := t.maxFrameReadSize(); max != 0 { + initialSettings = append(initialSettings, Setting{ID: SettingMaxFrameSize, Val: max}) + } if max := t.maxHeaderListSize(); max != 0 { initialSettings = append(initialSettings, Setting{ID: SettingMaxHeaderListSize, Val: max}) } + if maxHeaderTableSize != initialHeaderTableSize { + initialSettings = append(initialSettings, Setting{ID: SettingHeaderTableSize, Val: maxHeaderTableSize}) + } cc.bw.Write(clientPreface) cc.fr.WriteSettings(initialSettings...) cc.fr.WriteWindowUpdate(0, transportDefaultConnFlow) - cc.inflow.add(transportDefaultConnFlow + initialWindowSize) + cc.inflow.init(transportDefaultConnFlow + initialWindowSize) cc.bw.Flush() if cc.werr != nil { cc.Close() @@ -1075,7 +1144,7 @@ var errRequestCanceled = errors.New("net/http: request canceled") func commaSeparatedTrailers(req *http.Request) (string, error) { keys := make([]string, 0, len(req.Trailer)) for k := range req.Trailer { - k = http.CanonicalHeaderKey(k) + k = canonicalHeader(k) switch k { case "Transfer-Encoding", "Trailer", "Content-Length": return "", fmt.Errorf("invalid Trailer key %q", k) @@ -1612,7 +1681,7 @@ func (cs *clientStream) writeRequestBody(req *http.Request) (err error) { var sawEOF bool for !sawEOF { - n, err := body.Read(buf[:len(buf)]) + n, err := body.Read(buf) if hasContentLen { remainLen -= int64(n) if remainLen == 0 && err == nil { @@ -1915,7 +1984,7 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail // Header list size is ok. Write the headers. enumerateHeaders(func(name, value string) { - name, ascii := asciiToLower(name) + name, ascii := lowerHeader(name) if !ascii { // Skip writing invalid headers. Per RFC 7540, Section 8.1.2, header // field names have to be ASCII characters (just as in HTTP/1.x). @@ -1968,7 +2037,7 @@ func (cc *ClientConn) encodeTrailers(trailer http.Header) ([]byte, error) { } for k, vv := range trailer { - lowKey, ascii := asciiToLower(k) + lowKey, ascii := lowerHeader(k) if !ascii { // Skip writing invalid headers. Per RFC 7540, Section 8.1.2, header // field names have to be ASCII characters (just as in HTTP/1.x). @@ -2000,8 +2069,7 @@ type resAndError struct { func (cc *ClientConn) addStreamLocked(cs *clientStream) { cs.flow.add(int32(cc.initialWindowSize)) cs.flow.setConnFlow(&cc.flow) - cs.inflow.add(transportDefaultStreamFlow) - cs.inflow.setConnFlow(&cc.inflow) + cs.inflow.init(transportDefaultStreamFlow) cs.ID = cc.nextStreamID cc.nextStreamID += 2 cc.streams[cs.ID] = cs @@ -2301,7 +2369,7 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra Status: status + " " + http.StatusText(statusCode), } for _, hf := range regularFields { - key := http.CanonicalHeaderKey(hf.Name) + key := canonicalHeader(hf.Name) if key == "Trailer" { t := res.Trailer if t == nil { @@ -2309,7 +2377,7 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra res.Trailer = t } foreachHeaderElement(hf.Value, func(v string) { - t[http.CanonicalHeaderKey(v)] = nil + t[canonicalHeader(v)] = nil }) } else { vv := header[key] @@ -2414,7 +2482,7 @@ func (rl *clientConnReadLoop) processTrailers(cs *clientStream, f *MetaHeadersFr trailer := make(http.Header) for _, hf := range f.RegularFields() { - key := http.CanonicalHeaderKey(hf.Name) + key := canonicalHeader(hf.Name) trailer[key] = append(trailer[key], hf.Value) } cs.trailer = trailer @@ -2460,21 +2528,10 @@ func (b transportResponseBody) Read(p []byte) (n int, err error) { } cc.mu.Lock() - var connAdd, streamAdd int32 - // Check the conn-level first, before the stream-level. - if v := cc.inflow.available(); v < transportDefaultConnFlow/2 { - connAdd = transportDefaultConnFlow - v - cc.inflow.add(connAdd) - } + connAdd := cc.inflow.add(n) + var streamAdd int32 if err == nil { // No need to refresh if the stream is over or failed. - // Consider any buffered body data (read from the conn but not - // consumed by the client) when computing flow control for this - // stream. - v := int(cs.inflow.available()) + cs.bufPipe.Len() - if v < transportDefaultStreamFlow-transportDefaultStreamMinRefresh { - streamAdd = int32(transportDefaultStreamFlow - v) - cs.inflow.add(streamAdd) - } + streamAdd = cs.inflow.add(n) } cc.mu.Unlock() @@ -2502,17 +2559,15 @@ func (b transportResponseBody) Close() error { if unread > 0 { cc.mu.Lock() // Return connection-level flow control. - if unread > 0 { - cc.inflow.add(int32(unread)) - } + connAdd := cc.inflow.add(unread) cc.mu.Unlock() // TODO(dneil): Acquiring this mutex can block indefinitely. // Move flow control return to a goroutine? cc.wmu.Lock() // Return connection-level flow control. - if unread > 0 { - cc.fr.WriteWindowUpdate(0, uint32(unread)) + if connAdd > 0 { + cc.fr.WriteWindowUpdate(0, uint32(connAdd)) } cc.bw.Flush() cc.wmu.Unlock() @@ -2555,13 +2610,18 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error { // But at least return their flow control: if f.Length > 0 { cc.mu.Lock() - cc.inflow.add(int32(f.Length)) + ok := cc.inflow.take(f.Length) + connAdd := cc.inflow.add(int(f.Length)) cc.mu.Unlock() - - cc.wmu.Lock() - cc.fr.WriteWindowUpdate(0, uint32(f.Length)) - cc.bw.Flush() - cc.wmu.Unlock() + if !ok { + return ConnectionError(ErrCodeFlowControl) + } + if connAdd > 0 { + cc.wmu.Lock() + cc.fr.WriteWindowUpdate(0, uint32(connAdd)) + cc.bw.Flush() + cc.wmu.Unlock() + } } return nil } @@ -2592,9 +2652,7 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error { } // Check connection-level flow control. cc.mu.Lock() - if cs.inflow.available() >= int32(f.Length) { - cs.inflow.take(int32(f.Length)) - } else { + if !takeInflows(&cc.inflow, &cs.inflow, f.Length) { cc.mu.Unlock() return ConnectionError(ErrCodeFlowControl) } @@ -2616,19 +2674,20 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error { } } - if refund > 0 { - cc.inflow.add(int32(refund)) - if !didReset { - cs.inflow.add(int32(refund)) - } + sendConn := cc.inflow.add(refund) + var sendStream int32 + if !didReset { + sendStream = cs.inflow.add(refund) } cc.mu.Unlock() - if refund > 0 { + if sendConn > 0 || sendStream > 0 { cc.wmu.Lock() - cc.fr.WriteWindowUpdate(0, uint32(refund)) - if !didReset { - cc.fr.WriteWindowUpdate(cs.ID, uint32(refund)) + if sendConn > 0 { + cc.fr.WriteWindowUpdate(0, uint32(sendConn)) + } + if sendStream > 0 { + cc.fr.WriteWindowUpdate(cs.ID, uint32(sendStream)) } cc.bw.Flush() cc.wmu.Unlock() @@ -2760,8 +2819,10 @@ func (rl *clientConnReadLoop) processSettingsNoWrite(f *SettingsFrame) error { cc.cond.Broadcast() cc.initialWindowSize = s.Val + case SettingHeaderTableSize: + cc.henc.SetMaxDynamicTableSize(s.Val) + cc.peerMaxHeaderTableSize = s.Val default: - // TODO(bradfitz): handle more settings? SETTINGS_HEADER_TABLE_SIZE probably. cc.vlogf("Unhandled Setting: %v", s) } return nil @@ -2985,7 +3046,11 @@ func (gz *gzipReader) Read(p []byte) (n int, err error) { } func (gz *gzipReader) Close() error { - return gz.body.Close() + if err := gz.body.Close(); err != nil { + return err + } + gz.zerr = fs.ErrClosed + return nil } type errorReader struct{ err error } diff --git a/vendor/golang.org/x/net/publicsuffix/data/children b/vendor/golang.org/x/net/publicsuffix/data/children new file mode 100644 index 00000000..1038c561 Binary files /dev/null and b/vendor/golang.org/x/net/publicsuffix/data/children differ diff --git a/vendor/golang.org/x/net/publicsuffix/data/nodes b/vendor/golang.org/x/net/publicsuffix/data/nodes new file mode 100644 index 00000000..34751cd5 Binary files /dev/null and b/vendor/golang.org/x/net/publicsuffix/data/nodes differ diff --git a/vendor/golang.org/x/net/publicsuffix/data/text b/vendor/golang.org/x/net/publicsuffix/data/text new file mode 100644 index 00000000..124dcd61 --- /dev/null +++ b/vendor/golang.org/x/net/publicsuffix/data/text @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/vendor/golang.org/x/net/publicsuffix/list.go b/vendor/golang.org/x/net/publicsuffix/list.go index 7caeeaa6..d56e9e76 100644 --- a/vendor/golang.org/x/net/publicsuffix/list.go +++ b/vendor/golang.org/x/net/publicsuffix/list.go @@ -101,10 +101,10 @@ loop: break } - u := uint32(nodeValue(f) >> (nodesBitsTextOffset + nodesBitsTextLength)) + u := uint32(nodes.get(f) >> (nodesBitsTextOffset + nodesBitsTextLength)) icannNode = u&(1<>= nodesBitsICANN - u = children[u&(1<>= childrenBitsLo hi = u & (1<>= nodesBitsTextLength offset := x & (1<