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bbb5413331
DNS module passes additional parameters to Stats module. This allows Stats to handle HTTP requests by itself - completely removing all stats-related code from outside.
78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
// Module for managing statistics for DNS filtering server
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package stats
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import (
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"net"
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"net/http"
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)
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type unitIDCallback func() uint32
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// DiskConfig - configuration settings that are stored on disk
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type DiskConfig struct {
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Interval uint32 `yaml:"statistics_interval"` // time interval for statistics (in days)
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}
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// Config - module configuration
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type Config struct {
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Filename string // database file name
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LimitDays uint32 // time limit (in days)
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UnitID unitIDCallback // user function to get the current unit ID. If nil, the current time hour is used.
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// Called when the configuration is changed by HTTP request
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ConfigModified func()
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// Register an HTTP handler
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HTTPRegister func(string, string, func(http.ResponseWriter, *http.Request))
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}
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// New - create object
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func New(conf Config) (Stats, error) {
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return createObject(conf)
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}
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// Stats - main interface
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type Stats interface {
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// Close object.
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// This function is not thread safe
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// (can't be called in parallel with any other function of this interface).
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Close()
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// Update counters
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Update(e Entry)
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// WriteDiskConfig - write configuration
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WriteDiskConfig(dc *DiskConfig)
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}
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// TimeUnit - time unit
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type TimeUnit int
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// Supported time units
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const (
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Hours TimeUnit = iota
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Days
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)
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// Result of DNS request processing
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type Result int
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// Supported result values
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const (
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RNotFiltered Result = iota + 1
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RFiltered
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RSafeBrowsing
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RSafeSearch
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RParental
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rLast
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)
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// Entry - data to add
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type Entry struct {
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Domain string
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Client net.IP
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Result Result
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Time uint32 // processing time (msec)
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}
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