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|
package monitor
import (
"context"
"io"
"net/http"
"strings"
"time"
"yaum/internal/model"
)
var httpClient = &http.Client{
Timeout: 10 * time.Second,
// do NOT set InsecureSkipVerify — we want proper TLS
}
func CheckHTTP(ctx context.Context, url string, keyword string) (model.Heartbeat, *model.SSLInfo) {
start := time.Now()
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
if err != nil {
hb := heartbeatFromError(start, err)
return hb, nil
}
resp, err := httpClient.Do(req)
elapsed := time.Since(start).Milliseconds()
if err != nil {
return model.Heartbeat{
StatusCode: 0,
ResponseTimeMs: elapsed,
IsUp: false,
ErrorMessage: err.Error(),
TestedAt: time.Now(),
}, nil
}
defer resp.Body.Close()
isUp := resp.StatusCode >= 200 && resp.StatusCode < 400
errMsg := ""
body, readErr := io.ReadAll(resp.Body)
if readErr != nil {
isUp = false
errMsg = "Erro ao ler corpo: " + readErr.Error()
} else {
bodyStr := string(body)
if keyword != "" && isUp {
if !strings.Contains(bodyStr, keyword) {
isUp = false
errMsg = "Palavra-chave nao encontrada"
}
}
if !isUp {
snippet := strings.TrimSpace(bodyStr)
if len(snippet) > 300 {
snippet = snippet[:300]
}
if errMsg == "" {
errMsg = snippet
} else {
errMsg += " | " + snippet
}
}
}
hb := model.Heartbeat{
StatusCode: resp.StatusCode,
ResponseTimeMs: elapsed,
IsUp: isUp,
ErrorMessage: errMsg,
TestedAt: time.Now(),
}
// Extract TLS certificate info
var ssl *model.SSLInfo
if resp.TLS != nil && len(resp.TLS.PeerCertificates) > 0 {
cert := resp.TLS.PeerCertificates[0]
days := int(time.Until(cert.NotAfter).Hours() / 24)
ssl = &model.SSLInfo{
ServiceID: 0, // filled in by caller
Issuer: cert.Issuer.CommonName,
ExpiresAt: cert.NotAfter,
DaysRemaining: days,
CheckedAt: time.Now(),
}
}
return hb, ssl
}
func heartbeatFromError(start time.Time, err error) model.Heartbeat {
return model.Heartbeat{
StatusCode: 0,
ResponseTimeMs: time.Since(start).Milliseconds(),
IsUp: false,
ErrorMessage: err.Error(),
TestedAt: time.Now(),
}
}
|
