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92 lines
2.6 KiB
Markdown
92 lines
2.6 KiB
Markdown
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# pict-rs 0.5.5
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## Overview
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pict-rs 0.5.5 adds a bugfix for uploading images with trailing bytes and few new features for
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advanced deployments.
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### Features
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- [Imagemagick Security Policy Configuration](#imagemagick-security-policy-configuration)
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- [Serving with TLS](#serving-with-tls)
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### Bugfixes
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- [Broken Pipe Error](#broken-pipe-error)
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## Upgrade Notes
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There's no significant changes from 0.5.4, so upgrading should be as simple as pulling a new version
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of pict-rs.
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## Descriptions
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### Imagemagick Security Policy Configuration
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pict-rs now supports configuring the imagemagick security policy via the pict-rs.toml file,
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environment variables, or via the commandline. The security policy defines the boundaries that
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imagemagick will operate with, and will allow it to abort processing media that would exceed those
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boundaries.
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Currently, there are only a few items that can be configured.
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```toml
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# pict-rs.toml
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[media.magick]
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max_width = 10000
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max_hight = 10000
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max_area = 40000000
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```
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```bash
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# environment variables
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PICTRS__MEDIA__MAGICK__MAX_WIDTH=10000
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PICTRS__MEDIA__MAGICK__MAX_HEIGHT=10000
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PICTRS__MEDIA__MAGICK__MAX_AREA=40000000
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```
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```bash
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# commandline
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pict-rs run \
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--media-magick-max-width 10000 \
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--media-magick-max-height 10000 \
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--media-magick-max-aread 40000000
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```
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It will also apply the configured `process_timeout` to the security policy.
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### Serving with TLS
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pict-rs can now be configured to serve itself over TLS if provided with a server key and a server
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certificate. This is for more advanced deployments that have Certificate Authority infrastructure in
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place. When serving over TLS, downstream services need to be configured to access pict-rs over TLS.
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```toml
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# pict-rs.toml
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[server]
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certificate = "/path/to/server.crt"
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private_key = "/path/to/server.key"
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```
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```bash
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# environment variables
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PICTRS__SERVER__CERTIFICATE=/path/to/server.crt
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PICTRS__SERVER__PRIVATE_KEY=/path/to/server.key
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```
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```bash
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# commandline
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pict-rs run \
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--certificate /path/to/server.crt \
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--private-key /path/to/server.key
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```
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### Broken Pipe Error
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In previous 0.5 releases with the default configurations, it was possible for valid images to fail
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to upload if they contained excess trailing bytes. This was caused by exiftool completing metadata
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processing on the image bytes before pict-rs had written the entire buffer to exiftool's stdin. The
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fix was to simply treat the case of stdin closing early as a success, rather than a failure. In the
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event there was actually an error in exiftool, the command will fail and pict-rs will return a
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proper status error instead.
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