67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
package main
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import (
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"crypto/tls"
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"fmt"
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"io"
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"time"
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)
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func Visit(url string) (result *Result) {
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result = &Result{}
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// Wrap error with additional information
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defer func() {
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if result.error != nil {
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result.error = fmt.Errorf("[%s] Error: %w", result.url, result.error)
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}
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}()
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geminiUrl, err := ParseUrl(url, "")
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if err != nil {
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result.error = err
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return result
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}
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result.url = *geminiUrl
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LogInfo("[%s] Dialing", geminiUrl.String())
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// Establish a TLS connection
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tlsConfig := &tls.Config{
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InsecureSkipVerify: true,
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}
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conn, err := tls.Dial("tcp", fmt.Sprintf("%s:%d", geminiUrl.hostname, geminiUrl.port), tlsConfig)
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if err != nil {
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result.error = err
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return result
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}
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defer conn.Close()
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// Read data from the connection
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conn.SetReadDeadline(time.Now().Add(5 * time.Second))
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buf := make([]byte, 1024)
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var data []byte
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// Write Gemini request to get response.
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conn.Write([]byte(fmt.Sprintf("%s\r\n", geminiUrl.String())))
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// Read response bytes in len(buf) byte chunks
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for {
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n, err := conn.Read(buf)
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if n > 0 {
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data = append(data, buf[:n]...)
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}
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if err != nil {
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if err == io.EOF {
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break
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} else {
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result.error = err
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return result
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}
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}
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}
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LogInfo("[%s] Received %d bytes", geminiUrl.String(), len(data))
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// time.Sleep(time.Duration(time.Second * 2))
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// LogDebug("[%s] Visitor finished", geminiUrl.String())
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result.data = string(data)
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return result
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}
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