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msgviewer: set max line length to 1 GB 

some people send around huge html without any newline in between.
This did overflow the default 64KB buffer of bufio.Scanner.
If something can't fit in a GB there's no hope left

Also, ignoring errors is bad mkey
This commit is contained in:
Reto Brunner 2020-07-28 09:59:03 +02:00
parent 01885e2448
commit 1bab1754f0
1 changed files with 8 additions and 0 deletions
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8
widgets/msgviewer.go
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@ -5,6 +5,7 @@ import (
"errors" "errors"
"fmt" "fmt"
"io" "io"
"os"
"os/exec" "os/exec"
"regexp" "regexp"
"strings" "strings"
@ -641,11 +642,18 @@ func (pv *PartViewer) copyFilterOutToPager() {
func (pv *PartViewer) copySourceToSinkStripAnsi() { func (pv *PartViewer) copySourceToSinkStripAnsi() {
scanner := bufio.NewScanner(pv.source) scanner := bufio.NewScanner(pv.source)
// some people send around huge html without any newline in between
// this did overflow the default 64KB buffer of bufio.Scanner.
// If something can't fit in a GB there's no hope left
scanner.Buffer(nil, 1024*1024*1024)
for scanner.Scan() { for scanner.Scan() {
text := scanner.Text() text := scanner.Text()
text = ansi.ReplaceAllString(text, "") text = ansi.ReplaceAllString(text, "")
io.WriteString(pv.sink, text+"\n") io.WriteString(pv.sink, text+"\n")
} }
if err := scanner.Err(); err != nil {
fmt.Fprintf(os.Stderr, "failed to read line: %v\n", err)
}
} }
func (pv *PartViewer) Invalidate() { func (pv *PartViewer) Invalidate() {