[FFmpeg-devel] [PATCH] ipfsgateway: Remove default gateway

[Timo Rothenpieler]

On 11/08/2022 00:27, Derek Buitenhuis wrote:
> A gateway can see everything, and we should not be shipping a hardcoded
> default from a third party company; it's a security risk.
> 
> Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
> ---
>   libavformat/ipfsgateway.c | 11 ++++-------
>   1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/libavformat/ipfsgateway.c b/libavformat/ipfsgateway.c
> index 5a5178c563..907b61b017 100644
> --- a/libavformat/ipfsgateway.c
> +++ b/libavformat/ipfsgateway.c
> @@ -240,13 +240,8 @@ static int translate_ipfs_to_http(URLContext *h, const char *uri, int flags, AVD
>           ret = populate_ipfs_gateway(h);
>   
>           if (ret < 1) {
> -            // We fallback on dweb.link (managed by Protocol Labs).
> -            snprintf(c->gateway_buffer, sizeof(c->gateway_buffer), "https://dweb.link");
> -
> -            av_log(h, AV_LOG_WARNING,
> -                   "IPFS does not appear to be running. "
> -                   "You’re now using the public gateway at dweb.link.\n");
> -            av_log(h, AV_LOG_INFO,
> +            av_log(h, AV_LOG_ERROR,
> +                   "IPFS does not appear to be running.\n\n"
>                      "Installing IPFS locally is recommended to "
>                      "improve performance and reliability, "
>                      "and not share all your activity with a single IPFS gateway.\n"
> @@ -259,6 +254,8 @@ static int translate_ipfs_to_http(URLContext *h, const char *uri, int flags, AVD
>                      "3. Define an $IPFS_PATH environment variable "
>                      "and point it to the IPFS data path "
>                      "- this is typically ~/.ipfs\n");
> +            ret = AVERROR(EINVAL);
> +            goto err;
>           }
>       }
>   

ACK, hardcoding a public gateway is a huge NO from me.
Also in string favour of backporting this to 5.1, since it should have 
never made it in there in the first place.