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Benchmarking, packaging, and fix issues, tests and perfomance (#797)

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### performance
- handling of the very big packet(any size that can be buffered)
- speeding up TCP sessions by using message hints: Added **proto.HasFullPayload** that helps to validate the entire HTTP request, it supports `Chunked` encoding too! Added **proto.HasRequestTitle** and **proto.HasResponseTitle** for validating the beginning of HTTP request. Those methods are used `input_raw.go` with `TCP`.
- supports Keep-Alive: the above functions helps to support keep-alive

### Packaging
- **capture:** engines(capture/doc.go)
- **tcp:** tcp message parser (tcp/doc.go)

### benchmarking
- **capture.BenchmarkPcapDump:** the benchmarks regarding dumping packets in a pcap file
- **capture.BenchmarkPcapFile:** the benchmarks of reading packets from a pcap file
- **capture.BenchmarkPcap:** the benchmarks of parsing packets from the loopback interface with pcap handles
- **proto.BenchmarkHasFullPayload:**: benchmarking this function which validates the HTTP payload
- **tcp.BenchmarkPacketParseAndSort:** benchmarks of parsing and sorting packets
- **tcp.BenchmarkMessageParserWithoutHint:** benchmarks of message reasembling by using `SYN` and `FIN` flag
- **tcp.BenchmarkMessageParserWithHint:** benchmarks of message reasembling by using `proto.HasRequestTitle` and `proto.HasFullPayload` flag

### issues
see linked issues

###  tests
- fixed input raw and engine tests

**Most of the changed of the files, was about using functionalities of** `tcp` **and** `capture` **in existing functionalities**
This commit is contained in:
Urban Ishimwe
2020-08-11 12:44:53 +03:00
committed by GitHub
parent 2f81fba370
commit fdc8b094f0
60 changed files with 3106 additions and 3825 deletions
Download Patch File Download Diff File Expand all files Collapse all files
http_modifier.go
+10 -10
View File
@@ -15,9 +15,9 @@ type HTTPModifier struct {
func NewHTTPModifier(config *HTTPModifierConfig) *HTTPModifier {
// Optimization to skip modifier completely if we do not need it
if len(config.UrlRegexp) == 0 &&
len(config.UrlNegativeRegexp) == 0 &&
len(config.UrlRewrite) == 0 &&
if len(config.URLRegexp) == 0 &&
len(config.URLNegativeRegexp) == 0 &&
len(config.URLRewrite) == 0 &&
len(config.HeaderRewrite) == 0 &&
len(config.HeaderFilters) == 0 &&
len(config.HeaderNegativeFilters) == 0 &&
@@ -34,7 +34,7 @@ func NewHTTPModifier(config *HTTPModifierConfig) *HTTPModifier {
}
func (m *HTTPModifier) Rewrite(payload []byte) (response []byte) {
if !proto.IsHTTPPayload(payload) {
if !proto.HasRequestTitle(payload) {
return payload
}
@@ -67,12 +67,12 @@ func (m *HTTPModifier) Rewrite(payload []byte) (response []byte) {
}
}
if len(m.config.UrlRegexp) > 0 {
if len(m.config.URLRegexp) > 0 {
path := proto.Path(payload)
matched := false
for _, f := range m.config.UrlRegexp {
for _, f := range m.config.URLRegexp {
if f.regexp.Match(path) {
matched = true
break
@@ -84,10 +84,10 @@ func (m *HTTPModifier) Rewrite(payload []byte) (response []byte) {
}
}
if len(m.config.UrlNegativeRegexp) > 0 {
if len(m.config.URLNegativeRegexp) > 0 {
path := proto.Path(payload)
for _, f := range m.config.UrlNegativeRegexp {
for _, f := range m.config.URLNegativeRegexp {
if f.regexp.Match(path) {
return
}
@@ -165,10 +165,10 @@ func (m *HTTPModifier) Rewrite(payload []byte) (response []byte) {
}
}
if len(m.config.UrlRewrite) > 0 {
if len(m.config.URLRewrite) > 0 {
path := proto.Path(payload)
for _, f := range m.config.UrlRewrite {
for _, f := range m.config.URLRewrite {
if f.src.Match(path) {
path = f.src.ReplaceAll(path, f.target)
payload = proto.SetPath(payload, path)