/
clash.go
193 lines (149 loc) · 4.97 KB
/
clash.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
package acl
import (
"fmt"
"strconv"
"strings"
"sync"
"github.com/microctar/licorice/app/utils"
"golang.org/x/sync/errgroup"
)
var _ ACLReader = (*clashDiverter)(nil)
type clashDiverter struct {
Offline bool
OverwriteOriginalRules bool
EnableRuleGenerator bool
Ruleset map[string][]string
CustomProxyGroup []map[string]any
reQueryer utils.REQueryer
}
func (d *clashDiverter) SetQueryer(queryer utils.REQueryer) {
d.reQueryer = queryer
}
func (d *clashDiverter) ReadFile(basedir, path string) error {
// absPath :string => filter configuration file
// join path
absPath := fmt.Sprintf("%s/%s", basedir, path)
content, readErr := utils.ReadAll(absPath)
if readErr != nil {
return readErr
}
// regexp
rRuleset := d.reQueryer.Query("ruleset=(.*)")
rCpg := d.reQueryer.Query("custom_proxy_group=(.*)")
rErg := d.reQueryer.Query("enable_rule_generator=(.*)")
rOor := d.reQueryer.Query("overwrite_original_rules=(.*)")
rCommonRule := d.reQueryer.Query("(?m:^(DOMAIN|DOMAIN-(KEYWORD|SUFFIX)|PROCESS-NAME)(.*?)$)")
rUnsupportedRule := d.reQueryer.Query("(?m:^(USER-AGENT|URL-REGEX)(.*?)$)")
rNoresolve := d.reQueryer.Query("(?im:^(.*?),no-resolve$)")
rAllrule := d.reQueryer.Query("(?im:^[^\\#\\n].*$)")
rOnline := d.reQueryer.Query("(?i:online)")
rFinal := d.reQueryer.Query("(?i:final)")
ruleset := rRuleset.FindAllStringSubmatch(content, 64)
cpg := rCpg.FindAllStringSubmatch(content, 64)
erp := rErg.FindStringSubmatch(content)
oor := rOor.FindStringSubmatch(content)
if !rOnline.MatchString(absPath) {
d.Offline = true
}
if ruleset != nil {
// initialize
d.Ruleset = make(map[string][]string)
errgrp := new(errgroup.Group)
MapMutex := sync.RWMutex{}
// rule :[]string => ["matched_string", "rulename,location of rule file"]
// rule :[]string => ["matched_string", "rulename,[]groupname"]
for _, rule := range ruleset {
rule := rule
errgrp.Go(func() error {
// kvpair :[]string => ["rulename", "location of rule file"]
kvpair := strings.Split(rule[1], ",")
if strings.Contains(rule[1], "[]") {
if rFinal.MatchString(rule[1]) {
rule[1] = strings.Replace(rule[1], "FINAL", "MATCH", -1)
}
kvpair = strings.Split(strings.Replace(rule[1], "[]", "", -1), ",")
strategy := strings.Join(kvpair[1:], ",")
MapMutex.Lock()
d.Ruleset[kvpair[0]] = append(d.Ruleset[kvpair[0]], fmt.Sprintf("%s,%s", strategy, kvpair[0]))
MapMutex.Unlock()
} else {
var ruleContent string
var readRuleErr error
if d.Offline {
// ruleFilePath => absolute path of offline configuration file
ruleFilePath := fmt.Sprintf("%s/%s", basedir, kvpair[1])
ruleContent, readRuleErr = utils.ReadAll(ruleFilePath)
} else {
ruleContent, readRuleErr = utils.GetOnlineContent(kvpair[1])
}
if readRuleErr != nil {
return readRuleErr
}
// remove unsupported rule
ruleContent = rUnsupportedRule.ReplaceAllString(ruleContent, "\n")
// "$0" => matched string
ruleContent = rCommonRule.ReplaceAllString(ruleContent, fmt.Sprintf("$0,%s", kvpair[0]))
// "$1" => matched substring
ruleContent = rNoresolve.ReplaceAllString(ruleContent, fmt.Sprintf("$1,%s,no-resolve", kvpair[0]))
allRule := rAllrule.FindAllString(ruleContent, 8192)
MapMutex.Lock()
d.Ruleset[kvpair[0]] = append(d.Ruleset[kvpair[0]], allRule...)
MapMutex.Unlock()
}
return nil
})
}
if gerr := errgrp.Wait(); gerr != nil {
return gerr
}
}
if cpg != nil {
wg := new(sync.WaitGroup)
MapMutex := sync.RWMutex{}
d.CustomProxyGroup = make([]map[string]any, len(cpg))
for offset, group := range cpg {
wg.Add(1)
group := group
offset := offset
go func() {
defer wg.Done()
// grpinfo :[]string => ["group_name", "type", "group", ...]
// grpinfo :[]string => ["group_name", "type", ".*", "url", "interval_time,,interval_time"]
grpinfo := strings.Split(strings.Replace(group[1], "[]", "", -1), "`")
// initialize
cpgrp := make(map[string]any)
cpgrp["name"] = grpinfo[0]
cpgrp["type"] = grpinfo[1]
// grpinfo[1] => type :string
if grpinfo[1] != "url-test" {
cpgrp["proxies"] = append([]string{}, grpinfo[2:]...)
} else {
// grpinfo[3] => "url"
cpgrp["url"] = grpinfo[3]
// grpinfo[4] => "interval,,xx"
intervalStr := strings.Split(grpinfo[4], ",")[0]
interval, _ := strconv.Atoi(intervalStr)
cpgrp["interval"] = interval
// grpinfo[2] => ".*"
cpgrp["proxies"] = append([]string{}, grpinfo[2])
}
MapMutex.Lock()
defer MapMutex.Unlock()
d.CustomProxyGroup[offset] = cpgrp
}()
}
wg.Wait()
}
if erp != nil {
// erp :[]string => ["matched_string", "boolean"]
d.EnableRuleGenerator = utils.Str2Bool(erp[1])
}
if oor != nil {
// oor :[]string => ["matched_string", "boolean"]
d.OverwriteOriginalRules = utils.Str2Bool(oor[1])
}
return nil
}
func (d *clashDiverter) Expose() any {
return (*ClashDiverter)(d)
}