-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[easy/ezdbg] support filter rule (#69)
Change-Id: I670060c21056f1b1c59eb24378da49f4eaed541f
- Loading branch information
Showing
9 changed files
with
395 additions
and
34 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package ezdbg | ||
|
|
||
| import ( | ||
| "strings" | ||
|
|
||
| "github.com/gobwas/glob" | ||
| ) | ||
|
|
||
| const FilterRuleEnvName = "EZDBG_FILTER_RULE" | ||
|
|
||
| type logFilter struct { | ||
| rule string | ||
| allowRule string | ||
| denyRule string | ||
|
|
||
| allowAll bool | ||
| allowGlobs []glob.Glob | ||
|
|
||
| denyAll bool | ||
| denyGlobs []glob.Glob | ||
| } | ||
|
|
||
| func newLogFilter(rule string) *logFilter { | ||
| lf := &logFilter{rule: rule} | ||
| if rule == "" { | ||
| lf.allowAll = true | ||
| return lf | ||
| } | ||
| directives := strings.Split(rule, ";") | ||
| for _, r := range directives { | ||
| if r == "" { | ||
| continue | ||
| } | ||
| if strings.HasPrefix(r, "allow=") { | ||
| lf.parseAllowRule(r) | ||
| } | ||
| if strings.HasPrefix(r, "deny=") { | ||
| lf.parseDenyRule(r) | ||
| } | ||
| } | ||
| if len(lf.allowGlobs) == 0 { | ||
| lf.allowAll = true | ||
| } | ||
| return lf | ||
| } | ||
|
|
||
| func (f *logFilter) parseAllowRule(rule string) { | ||
| f.allowRule = rule | ||
| // Remove the prefix "allow=". | ||
| globStrs := strings.Split(rule[6:], ",") | ||
| for _, s := range globStrs { | ||
| if s == "" { | ||
| continue | ||
| } | ||
| if s == "all" { | ||
| f.allowGlobs = nil | ||
| break | ||
| } | ||
| g, err := glob.Compile("**"+s, '/') | ||
| if err != nil { | ||
| stdLogger{}.Warnf("ezdbg: failed to compile filter pattern %q: %v", s, err) | ||
| continue | ||
| } | ||
| f.allowGlobs = append(f.allowGlobs, g) | ||
| } | ||
| } | ||
|
|
||
| func (f *logFilter) parseDenyRule(rule string) { | ||
| f.denyRule = rule | ||
| // Remove the prefix "deny=". | ||
| globStrs := strings.Split(rule[5:], ",") | ||
| for _, s := range globStrs { | ||
| if s == "" { | ||
| continue | ||
| } | ||
| if s == "all" { | ||
| f.denyAll = true | ||
| f.denyGlobs = nil | ||
| break | ||
| } | ||
| g, err := glob.Compile("**"+s, '/') | ||
| if err != nil { | ||
| stdLogger{}.Warnf("ezdbg: failed to compile filter pattern %q: %v", s, err) | ||
| continue | ||
| } | ||
| f.denyGlobs = append(f.denyGlobs, g) | ||
| } | ||
| } | ||
|
|
||
| func (f *logFilter) Allow(fileName string) bool { | ||
| // not allow-all, check allow rules | ||
| if !f.allowAll { | ||
| for _, g := range f.allowGlobs { | ||
| if g.Match(fileName) { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| // allow-all, check deny rules | ||
| if !f.denyAll { | ||
| for _, g := range f.denyGlobs { | ||
| if g.Match(fileName) { | ||
| return false | ||
| } | ||
| } | ||
| } | ||
| return !f.denyAll | ||
| } |
Oops, something went wrong.