Added Sanitization for the input file for termux-open command #58
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If you always do encoding, you will break paths if they were already encoded by user before passing to Moreover, it's best not to encode yourself, encoding algorithms are very complex. You can use if [ "$ENCODE" = "1" ]; then
# Encode FILE with curl. sed replaced trailing newline and the "/?" prefix.
# - https://stackoverflow.com/a/10797966
FILE="$(printf "%s" "$FILE" | { curl -Gs -w %{url_effective} --data-urlencode @- ./ || :; } | sed -e "s/%0[aA]$//; s/^[^?]*?\(.*\)/\1/")"
fiAlso commit format must be as per repo git history. Use |
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twaik
requested changes
May 27, 2025
Comment on lines
+44
to
+59
| string="$1" | ||
| length=$(echo "$string" | wc -c) | ||
| length=$((length - 1)) | ||
| encoded="" | ||
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| i=1 | ||
| while [ "$i" -le "$length" ]; do | ||
| char=$(echo "$string" | cut -c "$i") | ||
| case "$char" in | ||
| [a-zA-Z0-9.~_-]) encoded="$encoded$char";; | ||
| *) encoded="$encoded%$(printf "%02X" "'$char")";; | ||
| esac | ||
| i=$((i + 1)) | ||
| done | ||
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| echo "$encoded" |
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It may be done much easier without invoking external commands lots of times.
Suggested change
| string="$1" | |
| length=$(echo "$string" | wc -c) | |
| length=$((length - 1)) | |
| encoded="" | |
| i=1 | |
| while [ "$i" -le "$length" ]; do | |
| char=$(echo "$string" | cut -c "$i") | |
| case "$char" in | |
| [a-zA-Z0-9.~_-]) encoded="$encoded$char";; | |
| *) encoded="$encoded%$(printf "%02X" "'$char")";; | |
| esac | |
| i=$((i + 1)) | |
| done | |
| echo "$encoded" | |
| for ((i=0; i<${#1}; i++)); do | |
| case "${1:i:1}" in | |
| [a-zA-Z0-9.~_-]) printf '%s' "${1:i:1}" ;; | |
| *) printf '%%%02X' "'${1:i:1}" ;; | |
| esac | |
| done | |
| echo |
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Oh, it is regular /bin/sh, not a bash. Right.
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The termux-open command had no sanitization for the input file, which prevented it from opening files containing % characters, this P.R. adds that sanitization.
termux/termux-app#3250