TUN-820: Fix caddyfile gitignore

This commit is contained in:
Areg Harutyunyan 2018-08-07 14:34:09 -05:00
parent a7d9747fae
commit 542bd90491
14 changed files with 1271 additions and 40 deletions

179
Gopkg.lock generated
View File

@ -2,31 +2,40 @@
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@ -52,24 +61,30 @@
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@ -77,192 +92,244 @@
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@ -277,18 +344,22 @@
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@ -296,11 +367,13 @@
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@ -316,18 +389,22 @@
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@ -354,28 +431,34 @@
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revision = "d604b6ffeee878fbf084fd2761466b6649989cee" revision = "d604b6ffeee878fbf084fd2761466b6649989cee"
source = "https://github.com/cbranch/cli" source = "https://github.com/cbranch/cli"
[[projects]] [[projects]]
digest = "1:342378ac4dcb378a5448dd723f0784ae519383532f5e70ade24132c4c8693202"
name = "gopkg.in/yaml.v2" name = "gopkg.in/yaml.v2"
packages = ["."] packages = ["."]
pruneopts = "UT"
revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183" revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
version = "v2.2.1" version = "v2.2.1"
[[projects]] [[projects]]
digest = "1:8ffc3ddc31414c0a71220957bb723b16510d7fcb5b3880dc0da4cf6d39c31642"
name = "zombiezen.com/go/capnproto2" name = "zombiezen.com/go/capnproto2"
packages = [ packages = [
".", ".",
@ -391,8 +474,9 @@
"rpc/internal/refcount", "rpc/internal/refcount",
"schemas", "schemas",
"server", "server",
"std/capnp/rpc" "std/capnp/rpc",
] ]
pruneopts = "UT"
revision = "7cfd211c19c7f5783c695f3654efa46f0df259c3" revision = "7cfd211c19c7f5783c695f3654efa46f0df259c3"
source = "https://github.com/zombiezen/go-capnproto2" source = "https://github.com/zombiezen/go-capnproto2"
version = "v2.17.1" version = "v2.17.1"
@ -400,6 +484,51 @@
[solve-meta] [solve-meta]
analyzer-name = "dep" analyzer-name = "dep"
analyzer-version = 1 analyzer-version = 1
inputs-digest = "a2d109989dfc76050eeb638546c012e192b5dc71d248c9d27cfa3f3282927966" input-imports = [
"github.com/cloudflare/brotli-go",
"github.com/coredns/coredns/core/dnsserver",
"github.com/coredns/coredns/plugin",
"github.com/coredns/coredns/plugin/cache",
"github.com/coredns/coredns/plugin/metrics/vars",
"github.com/coredns/coredns/plugin/pkg/dnstest",
"github.com/coredns/coredns/plugin/pkg/rcode",
"github.com/coredns/coredns/request",
"github.com/coreos/go-systemd/daemon",
"github.com/equinox-io/equinox",
"github.com/facebookgo/grace/gracenet",
"github.com/getsentry/raven-go",
"github.com/golang-collections/collections/queue",
"github.com/gorilla/websocket",
"github.com/mattn/go-colorable",
"github.com/miekg/dns",
"github.com/mitchellh/go-homedir",
"github.com/pkg/errors",
"github.com/prometheus/client_golang/prometheus",
"github.com/prometheus/client_golang/prometheus/promhttp",
"github.com/rifflock/lfshook",
"github.com/sirupsen/logrus",
"github.com/stretchr/testify/assert",
"golang.org/x/crypto/ssh/terminal",
"golang.org/x/net/context",
"golang.org/x/net/http2",
"golang.org/x/net/http2/hpack",
"golang.org/x/net/idna",
"golang.org/x/net/trace",
"golang.org/x/net/websocket",
"golang.org/x/sync/errgroup",
"golang.org/x/sys/windows",
"golang.org/x/sys/windows/svc",
"golang.org/x/sys/windows/svc/eventlog",
"golang.org/x/sys/windows/svc/mgr",
"gopkg.in/urfave/cli.v2",
"gopkg.in/urfave/cli.v2/altsrc",
"zombiezen.com/go/capnproto2",
"zombiezen.com/go/capnproto2/encoding/text",
"zombiezen.com/go/capnproto2/pogs",
"zombiezen.com/go/capnproto2/rpc",
"zombiezen.com/go/capnproto2/schemas",
"zombiezen.com/go/capnproto2/server",
"zombiezen.com/go/capnproto2/std/capnp/rpc",
]
solver-name = "gps-cdcl" solver-name = "gps-cdcl"
solver-version = 1 solver-version = 1

View File

@ -50,3 +50,7 @@
[[constraint]] [[constraint]]
name = "github.com/coredns/coredns" name = "github.com/coredns/coredns"
branch = "master" branch = "master"
[[override]]
name = "github.com/mholt/caddy"
branch = "master"

View File

@ -125,7 +125,8 @@ func SplitHostPort(s string) (host, port string, ipnet *net.IPNet, err error) {
// Get the first lower octet boundary to see what encompassing zone we should be authoritative for. // Get the first lower octet boundary to see what encompassing zone we should be authoritative for.
mod := (bits - ones) % sizeDigit mod := (bits - ones) % sizeDigit
nearest := (bits - ones) + mod nearest := (bits - ones) + mod
offset, end := 0, false offset := 0
var end bool
for i := 0; i < nearest/sizeDigit; i++ { for i := 0; i < nearest/sizeDigit; i++ {
offset, end = dns.NextLabel(rev, offset) offset, end = dns.NextLabel(rev, offset)
if end { if end {

View File

@ -263,12 +263,16 @@ func (r *Request) Scrub(reply *dns.Msg) (*dns.Msg, Result) {
// Account for the OPT record that gets added in SizeAndDo(), subtract that length. // Account for the OPT record that gets added in SizeAndDo(), subtract that length.
sub := 0 sub := 0
if r.Do() { if r.Req.IsEdns0() != nil {
sub = optLen sub = optLen
} }
origExtra := reply.Extra
// substract to make spaces for re-added EDNS0 OPT RR.
re := len(reply.Extra) - sub re := len(reply.Extra) - sub
size -= sub
l, m := 0, 0 l, m := 0, 0
origExtra := reply.Extra
for l < re { for l < re {
m = (l + re) / 2 m = (l + re) / 2
reply.Extra = origExtra[:m] reply.Extra = origExtra[:m]
@ -297,9 +301,9 @@ func (r *Request) Scrub(reply *dns.Msg) (*dns.Msg, Result) {
return reply, ScrubExtra return reply, ScrubExtra
} }
origAnswer := reply.Answer
ra := len(reply.Answer) ra := len(reply.Answer)
l, m = 0, 0 l, m = 0, 0
origAnswer := reply.Answer
for l < ra { for l < ra {
m = (l + ra) / 2 m = (l + ra) / 2
reply.Answer = origAnswer[:m] reply.Answer = origAnswer[:m]
@ -324,14 +328,12 @@ func (r *Request) Scrub(reply *dns.Msg) (*dns.Msg, Result) {
// this extra m-1 step does make it fit in the client's buffer however. // this extra m-1 step does make it fit in the client's buffer however.
} }
// It now fits, but Truncated. We can't call sizeAndDo() because that adds a new record (OPT) r.SizeAndDo(reply)
// in the additional section.
reply.Truncated = true reply.Truncated = true
return reply, ScrubAnswer return reply, ScrubAnswer
} }
// Type returns the type of the question as a string. If the request is malformed // Type returns the type of the question as a string. If the request is malformed the empty string is returned.
// the empty string is returned.
func (r *Request) Type() string { func (r *Request) Type() string {
if r.Req == nil { if r.Req == nil {
return "" return ""

View File

@ -13,9 +13,10 @@ access.log
/*.conf /*.conf
Caddyfile Caddyfile
!caddyfile/
og_static/ og_static/
.vscode/ .vscode/
*.bat *.bat

View File

@ -70,6 +70,8 @@ Then make sure the `caddy` binary is in your PATH.
To build for other platforms, use build.go with the `--goos` and `--goarch` flags. To build for other platforms, use build.go with the `--goos` and `--goarch` flags.
When building from source, telemetry is enabled by default. You can disable it by changing `enableTelemetry` in run.go before compiling, or use the `-disabled-metrics` flag at runtime to disable only certain metrics.
## Quick Start ## Quick Start

View File

@ -12,8 +12,8 @@ environment:
install: install:
- rmdir c:\go /s /q - rmdir c:\go /s /q
- appveyor DownloadFile https://storage.googleapis.com/golang/go1.9.windows-amd64.zip - appveyor DownloadFile https://storage.googleapis.com/golang/go1.10.windows-amd64.zip
- 7z x go1.9.windows-amd64.zip -y -oC:\ > NUL - 7z x go1.10.windows-amd64.zip -y -oC:\ > NUL
- set PATH=%GOPATH%\bin;%PATH% - set PATH=%GOPATH%\bin;%PATH%
- go version - go version
- go env - go env

260
vendor/github.com/mholt/caddy/caddyfile/dispenser.go generated vendored Normal file
View File

@ -0,0 +1,260 @@
// Copyright 2015 Light Code Labs, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyfile
import (
"errors"
"fmt"
"io"
"strings"
)
// Dispenser is a type that dispenses tokens, similarly to a lexer,
// except that it can do so with some notion of structure and has
// some really convenient methods.
type Dispenser struct {
filename string
tokens []Token
cursor int
nesting int
}
// NewDispenser returns a Dispenser, ready to use for parsing the given input.
func NewDispenser(filename string, input io.Reader) Dispenser {
tokens, _ := allTokens(input) // ignoring error because nothing to do with it
return Dispenser{
filename: filename,
tokens: tokens,
cursor: -1,
}
}
// NewDispenserTokens returns a Dispenser filled with the given tokens.
func NewDispenserTokens(filename string, tokens []Token) Dispenser {
return Dispenser{
filename: filename,
tokens: tokens,
cursor: -1,
}
}
// Next loads the next token. Returns true if a token
// was loaded; false otherwise. If false, all tokens
// have been consumed.
func (d *Dispenser) Next() bool {
if d.cursor < len(d.tokens)-1 {
d.cursor++
return true
}
return false
}
// NextArg loads the next token if it is on the same
// line. Returns true if a token was loaded; false
// otherwise. If false, all tokens on the line have
// been consumed. It handles imported tokens correctly.
func (d *Dispenser) NextArg() bool {
if d.cursor < 0 {
d.cursor++
return true
}
if d.cursor >= len(d.tokens) {
return false
}
if d.cursor < len(d.tokens)-1 &&
d.tokens[d.cursor].File == d.tokens[d.cursor+1].File &&
d.tokens[d.cursor].Line+d.numLineBreaks(d.cursor) == d.tokens[d.cursor+1].Line {
d.cursor++
return true
}
return false
}
// NextLine loads the next token only if it is not on the same
// line as the current token, and returns true if a token was
// loaded; false otherwise. If false, there is not another token
// or it is on the same line. It handles imported tokens correctly.
func (d *Dispenser) NextLine() bool {
if d.cursor < 0 {
d.cursor++
return true
}
if d.cursor >= len(d.tokens) {
return false
}
if d.cursor < len(d.tokens)-1 &&
(d.tokens[d.cursor].File != d.tokens[d.cursor+1].File ||
d.tokens[d.cursor].Line+d.numLineBreaks(d.cursor) < d.tokens[d.cursor+1].Line) {
d.cursor++
return true
}
return false
}
// NextBlock can be used as the condition of a for loop
// to load the next token as long as it opens a block or
// is already in a block. It returns true if a token was
// loaded, or false when the block's closing curly brace
// was loaded and thus the block ended. Nested blocks are
// not supported.
func (d *Dispenser) NextBlock() bool {
if d.nesting > 0 {
d.Next()
if d.Val() == "}" {
d.nesting--
return false
}
return true
}
if !d.NextArg() { // block must open on same line
return false
}
if d.Val() != "{" {
d.cursor-- // roll back if not opening brace
return false
}
d.Next()
if d.Val() == "}" {
// Open and then closed right away
return false
}
d.nesting++
return true
}
// Val gets the text of the current token. If there is no token
// loaded, it returns empty string.
func (d *Dispenser) Val() string {
if d.cursor < 0 || d.cursor >= len(d.tokens) {
return ""
}
return d.tokens[d.cursor].Text
}
// Line gets the line number of the current token. If there is no token
// loaded, it returns 0.
func (d *Dispenser) Line() int {
if d.cursor < 0 || d.cursor >= len(d.tokens) {
return 0
}
return d.tokens[d.cursor].Line
}
// File gets the filename of the current token. If there is no token loaded,
// it returns the filename originally given when parsing started.
func (d *Dispenser) File() string {
if d.cursor < 0 || d.cursor >= len(d.tokens) {
return d.filename
}
if tokenFilename := d.tokens[d.cursor].File; tokenFilename != "" {
return tokenFilename
}
return d.filename
}
// Args is a convenience function that loads the next arguments
// (tokens on the same line) into an arbitrary number of strings
// pointed to in targets. If there are fewer tokens available
// than string pointers, the remaining strings will not be changed
// and false will be returned. If there were enough tokens available
// to fill the arguments, then true will be returned.
func (d *Dispenser) Args(targets ...*string) bool {
enough := true
for i := 0; i < len(targets); i++ {
if !d.NextArg() {
enough = false
break
}
*targets[i] = d.Val()
}
return enough
}
// RemainingArgs loads any more arguments (tokens on the same line)
// into a slice and returns them. Open curly brace tokens also indicate
// the end of arguments, and the curly brace is not included in
// the return value nor is it loaded.
func (d *Dispenser) RemainingArgs() []string {
var args []string
for d.NextArg() {
if d.Val() == "{" {
d.cursor--
break
}
args = append(args, d.Val())
}
return args
}
// ArgErr returns an argument error, meaning that another
// argument was expected but not found. In other words,
// a line break or open curly brace was encountered instead of
// an argument.
func (d *Dispenser) ArgErr() error {
if d.Val() == "{" {
return d.Err("Unexpected token '{', expecting argument")
}
return d.Errf("Wrong argument count or unexpected line ending after '%s'", d.Val())
}
// SyntaxErr creates a generic syntax error which explains what was
// found and what was expected.
func (d *Dispenser) SyntaxErr(expected string) error {
msg := fmt.Sprintf("%s:%d - Syntax error: Unexpected token '%s', expecting '%s'", d.File(), d.Line(), d.Val(), expected)
return errors.New(msg)
}
// EOFErr returns an error indicating that the dispenser reached
// the end of the input when searching for the next token.
func (d *Dispenser) EOFErr() error {
return d.Errf("Unexpected EOF")
}
// Err generates a custom parse-time error with a message of msg.
func (d *Dispenser) Err(msg string) error {
msg = fmt.Sprintf("%s:%d - Error during parsing: %s", d.File(), d.Line(), msg)
return errors.New(msg)
}
// Errf is like Err, but for formatted error messages
func (d *Dispenser) Errf(format string, args ...interface{}) error {
return d.Err(fmt.Sprintf(format, args...))
}
// numLineBreaks counts how many line breaks are in the token
// value given by the token index tknIdx. It returns 0 if the
// token does not exist or there are no line breaks.
func (d *Dispenser) numLineBreaks(tknIdx int) int {
if tknIdx < 0 || tknIdx >= len(d.tokens) {
return 0
}
return strings.Count(d.tokens[tknIdx].Text, "\n")
}
// isNewLine determines whether the current token is on a different
// line (higher line number) than the previous token. It handles imported
// tokens correctly. If there isn't a previous token, it returns true.
func (d *Dispenser) isNewLine() bool {
if d.cursor < 1 {
return true
}
if d.cursor > len(d.tokens)-1 {
return false
}
return d.tokens[d.cursor-1].File != d.tokens[d.cursor].File ||
d.tokens[d.cursor-1].Line+d.numLineBreaks(d.cursor-1) < d.tokens[d.cursor].Line
}

198
vendor/github.com/mholt/caddy/caddyfile/json.go generated vendored Normal file
View File

@ -0,0 +1,198 @@
// Copyright 2015 Light Code Labs, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyfile
import (
"bytes"
"encoding/json"
"fmt"
"sort"
"strconv"
"strings"
)
const filename = "Caddyfile"
// ToJSON converts caddyfile to its JSON representation.
func ToJSON(caddyfile []byte) ([]byte, error) {
var j EncodedCaddyfile
serverBlocks, err := Parse(filename, bytes.NewReader(caddyfile), nil)
if err != nil {
return nil, err
}
for _, sb := range serverBlocks {
block := EncodedServerBlock{
Keys: sb.Keys,
Body: [][]interface{}{},
}
// Extract directives deterministically by sorting them
var directives = make([]string, len(sb.Tokens))
for dir := range sb.Tokens {
directives = append(directives, dir)
}
sort.Strings(directives)
// Convert each directive's tokens into our JSON structure
for _, dir := range directives {
disp := NewDispenserTokens(filename, sb.Tokens[dir])
for disp.Next() {
block.Body = append(block.Body, constructLine(&disp))
}
}
// tack this block onto the end of the list
j = append(j, block)
}
result, err := json.Marshal(j)
if err != nil {
return nil, err
}
return result, nil
}
// constructLine transforms tokens into a JSON-encodable structure;
// but only one line at a time, to be used at the top-level of
// a server block only (where the first token on each line is a
// directive) - not to be used at any other nesting level.
func constructLine(d *Dispenser) []interface{} {
var args []interface{}
args = append(args, d.Val())
for d.NextArg() {
if d.Val() == "{" {
args = append(args, constructBlock(d))
continue
}
args = append(args, d.Val())
}
return args
}
// constructBlock recursively processes tokens into a
// JSON-encodable structure. To be used in a directive's
// block. Goes to end of block.
func constructBlock(d *Dispenser) [][]interface{} {
block := [][]interface{}{}
for d.Next() {
if d.Val() == "}" {
break
}
block = append(block, constructLine(d))
}
return block
}
// FromJSON converts JSON-encoded jsonBytes to Caddyfile text
func FromJSON(jsonBytes []byte) ([]byte, error) {
var j EncodedCaddyfile
var result string
err := json.Unmarshal(jsonBytes, &j)
if err != nil {
return nil, err
}
for sbPos, sb := range j {
if sbPos > 0 {
result += "\n\n"
}
for i, key := range sb.Keys {
if i > 0 {
result += ", "
}
//result += standardizeScheme(key)
result += key
}
result += jsonToText(sb.Body, 1)
}
return []byte(result), nil
}
// jsonToText recursively transforms a scope of JSON into plain
// Caddyfile text.
func jsonToText(scope interface{}, depth int) string {
var result string
switch val := scope.(type) {
case string:
if strings.ContainsAny(val, "\" \n\t\r") {
result += `"` + strings.Replace(val, "\"", "\\\"", -1) + `"`
} else {
result += val
}
case int:
result += strconv.Itoa(val)
case float64:
result += fmt.Sprintf("%v", val)
case bool:
result += fmt.Sprintf("%t", val)
case [][]interface{}:
result += " {\n"
for _, arg := range val {
result += strings.Repeat("\t", depth) + jsonToText(arg, depth+1) + "\n"
}
result += strings.Repeat("\t", depth-1) + "}"
case []interface{}:
for i, v := range val {
if block, ok := v.([]interface{}); ok {
result += "{\n"
for _, arg := range block {
result += strings.Repeat("\t", depth) + jsonToText(arg, depth+1) + "\n"
}
result += strings.Repeat("\t", depth-1) + "}"
continue
}
result += jsonToText(v, depth)
if i < len(val)-1 {
result += " "
}
}
}
return result
}
// TODO: Will this function come in handy somewhere else?
/*
// standardizeScheme turns an address like host:https into https://host,
// or "host:" into "host".
func standardizeScheme(addr string) string {
if hostname, port, err := net.SplitHostPort(addr); err == nil {
if port == "http" || port == "https" {
addr = port + "://" + hostname
}
}
return strings.TrimSuffix(addr, ":")
}
*/
// EncodedCaddyfile encapsulates a slice of EncodedServerBlocks.
type EncodedCaddyfile []EncodedServerBlock
// EncodedServerBlock represents a server block ripe for encoding.
type EncodedServerBlock struct {
Keys []string `json:"keys"`
Body [][]interface{} `json:"body"`
}

150
vendor/github.com/mholt/caddy/caddyfile/lexer.go generated vendored Normal file
View File

@ -0,0 +1,150 @@
// Copyright 2015 Light Code Labs, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyfile
import (
"bufio"
"io"
"unicode"
)
type (
// lexer is a utility which can get values, token by
// token, from a Reader. A token is a word, and tokens
// are separated by whitespace. A word can be enclosed
// in quotes if it contains whitespace.
lexer struct {
reader *bufio.Reader
token Token
line int
}
// Token represents a single parsable unit.
Token struct {
File string
Line int
Text string
}
)
// load prepares the lexer to scan an input for tokens.
// It discards any leading byte order mark.
func (l *lexer) load(input io.Reader) error {
l.reader = bufio.NewReader(input)
l.line = 1
// discard byte order mark, if present
firstCh, _, err := l.reader.ReadRune()
if err != nil {
return err
}
if firstCh != 0xFEFF {
err := l.reader.UnreadRune()
if err != nil {
return err
}
}
return nil
}
// next loads the next token into the lexer.
// A token is delimited by whitespace, unless
// the token starts with a quotes character (")
// in which case the token goes until the closing
// quotes (the enclosing quotes are not included).
// Inside quoted strings, quotes may be escaped
// with a preceding \ character. No other chars
// may be escaped. The rest of the line is skipped
// if a "#" character is read in. Returns true if
// a token was loaded; false otherwise.
func (l *lexer) next() bool {
var val []rune
var comment, quoted, escaped bool
makeToken := func() bool {
l.token.Text = string(val)
return true
}
for {
ch, _, err := l.reader.ReadRune()
if err != nil {
if len(val) > 0 {
return makeToken()
}
if err == io.EOF {
return false
}
panic(err)
}
if quoted {
if !escaped {
if ch == '\\' {
escaped = true
continue
} else if ch == '"' {
quoted = false
return makeToken()
}
}
if ch == '\n' {
l.line++
}
if escaped {
// only escape quotes
if ch != '"' {
val = append(val, '\\')
}
}
val = append(val, ch)
escaped = false
continue
}
if unicode.IsSpace(ch) {
if ch == '\r' {
continue
}
if ch == '\n' {
l.line++
comment = false
}
if len(val) > 0 {
return makeToken()
}
continue
}
if ch == '#' {
comment = true
}
if comment {
continue
}
if len(val) == 0 {
l.token = Token{Line: l.line}
if ch == '"' {
quoted = true
continue
}
}
val = append(val, ch)
}
}

482
vendor/github.com/mholt/caddy/caddyfile/parse.go generated vendored Normal file
View File

@ -0,0 +1,482 @@
// Copyright 2015 Light Code Labs, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyfile
import (
"io"
"log"
"os"
"path/filepath"
"strings"
"github.com/mholt/caddy/telemetry"
)
// Parse parses the input just enough to group tokens, in
// order, by server block. No further parsing is performed.
// Server blocks are returned in the order in which they appear.
// Directives that do not appear in validDirectives will cause
// an error. If you do not want to check for valid directives,
// pass in nil instead.
func Parse(filename string, input io.Reader, validDirectives []string) ([]ServerBlock, error) {
p := parser{Dispenser: NewDispenser(filename, input), validDirectives: validDirectives}
return p.parseAll()
}
// allTokens lexes the entire input, but does not parse it.
// It returns all the tokens from the input, unstructured
// and in order.
func allTokens(input io.Reader) ([]Token, error) {
l := new(lexer)
err := l.load(input)
if err != nil {
return nil, err
}
var tokens []Token
for l.next() {
tokens = append(tokens, l.token)
}
return tokens, nil
}
type parser struct {
Dispenser
block ServerBlock // current server block being parsed
validDirectives []string // a directive must be valid or it's an error
eof bool // if we encounter a valid EOF in a hard place
definedSnippets map[string][]Token
}
func (p *parser) parseAll() ([]ServerBlock, error) {
var blocks []ServerBlock
for p.Next() {
err := p.parseOne()
if err != nil {
return blocks, err
}
if len(p.block.Keys) > 0 {
blocks = append(blocks, p.block)
}
}
return blocks, nil
}
func (p *parser) parseOne() error {
p.block = ServerBlock{Tokens: make(map[string][]Token)}
return p.begin()
}
func (p *parser) begin() error {
if len(p.tokens) == 0 {
return nil
}
err := p.addresses()
if err != nil {
return err
}
if p.eof {
// this happens if the Caddyfile consists of only
// a line of addresses and nothing else
return nil
}
if ok, name := p.isSnippet(); ok {
if p.definedSnippets == nil {
p.definedSnippets = map[string][]Token{}
}
if _, found := p.definedSnippets[name]; found {
return p.Errf("redeclaration of previously declared snippet %s", name)
}
// consume all tokens til matched close brace
tokens, err := p.snippetTokens()
if err != nil {
return err
}
p.definedSnippets[name] = tokens
// empty block keys so we don't save this block as a real server.
p.block.Keys = nil
return nil
}
return p.blockContents()
}
func (p *parser) addresses() error {
var expectingAnother bool
for {
tkn := replaceEnvVars(p.Val())
// special case: import directive replaces tokens during parse-time
if tkn == "import" && p.isNewLine() {
err := p.doImport()
if err != nil {
return err
}
continue
}
// Open brace definitely indicates end of addresses
if tkn == "{" {
if expectingAnother {
return p.Errf("Expected another address but had '%s' - check for extra comma", tkn)
}
break
}
if tkn != "" { // empty token possible if user typed ""
// Trailing comma indicates another address will follow, which
// may possibly be on the next line
if tkn[len(tkn)-1] == ',' {
tkn = tkn[:len(tkn)-1]
expectingAnother = true
} else {
expectingAnother = false // but we may still see another one on this line
}
p.block.Keys = append(p.block.Keys, tkn)
}
// Advance token and possibly break out of loop or return error
hasNext := p.Next()
if expectingAnother && !hasNext {
return p.EOFErr()
}
if !hasNext {
p.eof = true
break // EOF
}
if !expectingAnother && p.isNewLine() {
break
}
}
return nil
}
func (p *parser) blockContents() error {
errOpenCurlyBrace := p.openCurlyBrace()
if errOpenCurlyBrace != nil {
// single-server configs don't need curly braces
p.cursor--
}
err := p.directives()
if err != nil {
return err
}
// Only look for close curly brace if there was an opening
if errOpenCurlyBrace == nil {
err = p.closeCurlyBrace()
if err != nil {
return err
}
}
return nil
}
// directives parses through all the lines for directives
// and it expects the next token to be the first
// directive. It goes until EOF or closing curly brace
// which ends the server block.
func (p *parser) directives() error {
for p.Next() {
// end of server block
if p.Val() == "}" {
break
}
// special case: import directive replaces tokens during parse-time
if p.Val() == "import" {
err := p.doImport()
if err != nil {
return err
}
p.cursor-- // cursor is advanced when we continue, so roll back one more
continue
}
// normal case: parse a directive on this line
if err := p.directive(); err != nil {
return err
}
}
return nil
}
// doImport swaps out the import directive and its argument
// (a total of 2 tokens) with the tokens in the specified file
// or globbing pattern. When the function returns, the cursor
// is on the token before where the import directive was. In
// other words, call Next() to access the first token that was
// imported.
func (p *parser) doImport() error {
// syntax checks
if !p.NextArg() {
return p.ArgErr()
}
importPattern := replaceEnvVars(p.Val())
if importPattern == "" {
return p.Err("Import requires a non-empty filepath")
}
if p.NextArg() {
return p.Err("Import takes only one argument (glob pattern or file)")
}
// splice out the import directive and its argument (2 tokens total)
tokensBefore := p.tokens[:p.cursor-1]
tokensAfter := p.tokens[p.cursor+1:]
var importedTokens []Token
// first check snippets. That is a simple, non-recursive replacement
if p.definedSnippets != nil && p.definedSnippets[importPattern] != nil {
importedTokens = p.definedSnippets[importPattern]
} else {
// make path relative to the file of the _token_ being processed rather
// than current working directory (issue #867) and then use glob to get
// list of matching filenames
absFile, err := filepath.Abs(p.Dispenser.File())
if err != nil {
return p.Errf("Failed to get absolute path of file: %s: %v", p.Dispenser.filename, err)
}
var matches []string
var globPattern string
if !filepath.IsAbs(importPattern) {
globPattern = filepath.Join(filepath.Dir(absFile), importPattern)
} else {
globPattern = importPattern
}
if strings.Count(globPattern, "*") > 1 || strings.Count(globPattern, "?") > 1 ||
(strings.Contains(globPattern, "[") && strings.Contains(globPattern, "]")) {
// See issue #2096 - a pattern with many glob expansions can hang for too long
return p.Errf("Glob pattern may only contain one wildcard (*), but has others: %s", globPattern)
}
matches, err = filepath.Glob(globPattern)
if err != nil {
return p.Errf("Failed to use import pattern %s: %v", importPattern, err)
}
if len(matches) == 0 {
if strings.ContainsAny(globPattern, "*?[]") {
log.Printf("[WARNING] No files matching import glob pattern: %s", importPattern)
} else {
return p.Errf("File to import not found: %s", importPattern)
}
}
// collect all the imported tokens
for _, importFile := range matches {
newTokens, err := p.doSingleImport(importFile)
if err != nil {
return err
}
importedTokens = append(importedTokens, newTokens...)
}
}
// splice the imported tokens in the place of the import statement
// and rewind cursor so Next() will land on first imported token
p.tokens = append(tokensBefore, append(importedTokens, tokensAfter...)...)
p.cursor--
return nil
}
// doSingleImport lexes the individual file at importFile and returns
// its tokens or an error, if any.
func (p *parser) doSingleImport(importFile string) ([]Token, error) {
file, err := os.Open(importFile)
if err != nil {
return nil, p.Errf("Could not import %s: %v", importFile, err)
}
defer file.Close()
if info, err := file.Stat(); err != nil {
return nil, p.Errf("Could not import %s: %v", importFile, err)
} else if info.IsDir() {
return nil, p.Errf("Could not import %s: is a directory", importFile)
}
importedTokens, err := allTokens(file)
if err != nil {
return nil, p.Errf("Could not read tokens while importing %s: %v", importFile, err)
}
// Tack the file path onto these tokens so errors show the imported file's name
// (we use full, absolute path to avoid bugs: issue #1892)
filename, err := filepath.Abs(importFile)
if err != nil {
return nil, p.Errf("Failed to get absolute path of file: %s: %v", p.Dispenser.filename, err)
}
for i := 0; i < len(importedTokens); i++ {
importedTokens[i].File = filename
}
return importedTokens, nil
}
// directive collects tokens until the directive's scope
// closes (either end of line or end of curly brace block).
// It expects the currently-loaded token to be a directive
// (or } that ends a server block). The collected tokens
// are loaded into the current server block for later use
// by directive setup functions.
func (p *parser) directive() error {
dir := p.Val()
nesting := 0
// TODO: More helpful error message ("did you mean..." or "maybe you need to install its server type")
if !p.validDirective(dir) {
return p.Errf("Unknown directive '%s'", dir)
}
// The directive itself is appended as a relevant token
p.block.Tokens[dir] = append(p.block.Tokens[dir], p.tokens[p.cursor])
telemetry.AppendUnique("directives", dir)
for p.Next() {
if p.Val() == "{" {
nesting++
} else if p.isNewLine() && nesting == 0 {
p.cursor-- // read too far
break
} else if p.Val() == "}" && nesting > 0 {
nesting--
} else if p.Val() == "}" && nesting == 0 {
return p.Err("Unexpected '}' because no matching opening brace")
}
p.tokens[p.cursor].Text = replaceEnvVars(p.tokens[p.cursor].Text)
p.block.Tokens[dir] = append(p.block.Tokens[dir], p.tokens[p.cursor])
}
if nesting > 0 {
return p.EOFErr()
}
return nil
}
// openCurlyBrace expects the current token to be an
// opening curly brace. This acts like an assertion
// because it returns an error if the token is not
// a opening curly brace. It does NOT advance the token.
func (p *parser) openCurlyBrace() error {
if p.Val() != "{" {
return p.SyntaxErr("{")
}
return nil
}
// closeCurlyBrace expects the current token to be
// a closing curly brace. This acts like an assertion
// because it returns an error if the token is not
// a closing curly brace. It does NOT advance the token.
func (p *parser) closeCurlyBrace() error {
if p.Val() != "}" {
return p.SyntaxErr("}")
}
return nil
}
// validDirective returns true if dir is in p.validDirectives.
func (p *parser) validDirective(dir string) bool {
if p.validDirectives == nil {
return true
}
for _, d := range p.validDirectives {
if d == dir {
return true
}
}
return false
}
// replaceEnvVars replaces environment variables that appear in the token
// and understands both the $UNIX and %WINDOWS% syntaxes.
func replaceEnvVars(s string) string {
s = replaceEnvReferences(s, "{%", "%}")
s = replaceEnvReferences(s, "{$", "}")
return s
}
// replaceEnvReferences performs the actual replacement of env variables
// in s, given the placeholder start and placeholder end strings.
func replaceEnvReferences(s, refStart, refEnd string) string {
index := strings.Index(s, refStart)
for index != -1 {
endIndex := strings.Index(s, refEnd)
if endIndex > index+len(refStart) {
ref := s[index : endIndex+len(refEnd)]
s = strings.Replace(s, ref, os.Getenv(ref[len(refStart):len(ref)-len(refEnd)]), -1)
} else {
return s
}
index = strings.Index(s, refStart)
}
return s
}
// ServerBlock associates any number of keys (usually addresses
// of some sort) with tokens (grouped by directive name).
type ServerBlock struct {
Keys []string
Tokens map[string][]Token
}
func (p *parser) isSnippet() (bool, string) {
keys := p.block.Keys
// A snippet block is a single key with parens. Nothing else qualifies.
if len(keys) == 1 && strings.HasPrefix(keys[0], "(") && strings.HasSuffix(keys[0], ")") {
return true, strings.TrimSuffix(keys[0][1:], ")")
}
return false, ""
}
// read and store everything in a block for later replay.
func (p *parser) snippetTokens() ([]Token, error) {
// TODO: disallow imports in snippets for simplicity at import time
// snippet must have curlies.
err := p.openCurlyBrace()
if err != nil {
return nil, err
}
count := 1
tokens := []Token{}
for p.Next() {
if p.Val() == "}" {
count--
if count == 0 {
break
}
}
if p.Val() == "{" {
count++
}
tokens = append(tokens, p.tokens[p.cursor])
}
// make sure we're matched up
if count != 0 {
return nil, p.SyntaxErr("}")
}
return tokens, nil
}

View File

@ -263,9 +263,10 @@ type EventName string
// Define names for the various events // Define names for the various events
const ( const (
StartupEvent EventName = "startup" StartupEvent EventName = "startup"
ShutdownEvent EventName = "shutdown" ShutdownEvent = "shutdown"
CertRenewEvent EventName = "certrenew" CertRenewEvent = "certrenew"
InstanceStartupEvent EventName = "instancestartup" InstanceStartupEvent = "instancestartup"
InstanceRestartEvent = "instancerestart"
) )
// EventHook is a type which holds information about a startup hook plugin. // EventHook is a type which holds information about a startup hook plugin.

View File

@ -31,7 +31,7 @@ func checkFdlimit() {
err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, rlimit) err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, rlimit)
if err == nil && rlimit.Cur < min { if err == nil && rlimit.Cur < min {
fmt.Printf("WARNING: File descriptor limit %d is too low for production servers. "+ fmt.Printf("WARNING: File descriptor limit %d is too low for production servers. "+
"At least %d is recommended. Fix with \"ulimit -n %d\".\n", rlimit.Cur, min, min) "At least %d is recommended. Fix with `ulimit -n %d`.\n", rlimit.Cur, min, min)
} }
} }

View File

@ -90,6 +90,7 @@ func trapSignalsPosix() {
purgeEventHooks() purgeEventHooks()
// Kick off the restart; our work is done // Kick off the restart; our work is done
EmitEvent(InstanceRestartEvent, nil)
_, err = inst.Restart(caddyfileToUse) _, err = inst.Restart(caddyfileToUse)
if err != nil { if err != nil {
restoreEventHooks(oldEventHooks) restoreEventHooks(oldEventHooks)