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samhyunandClaude Fable 5.1
bdddf9a2ba
From the review of #1491: patching a component's sampling in the header of a baseline JPEG `image` wrote leaves its entropy data for 1 × 1 components, so decoding it could only fail and the test proved nothing past the frame not being refused. The fixture is now a baseline CMYK JPEG as jpeg-encoder writes it with 2 × 2 sampling (its black sampled finer than its cyan), and the test asserts it is left to the decoder and decodes. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
138 lines
12 KiB
Rust
138 lines
12 KiB
Rust
//! A progressive JPEG whose frame samples a component more finely than its first is refused from
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//! its header, not handed to the decoder: zune-jpeg 0.5.15, the decoder behind `image`, asserts
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//! in its upsampler on such a frame (etemesi254/zune-image#236), and in the browser a panic aborts
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//! the page. Baseline frames of the same shape are decoded by the decoder itself and left to it.
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use std::io::Cursor;
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use super::*;
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/// An 8 × 8 progressive RGB JPEG with every component sampled 1 × 1, as jpeg-encoder 0.6 writes it
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/// at quality 50 (JFIF header, the standard tables, three scans). Its frame header (SOF2) starts at
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/// byte 20; the second component's sampling byte is [`SECOND_SAMPLING`], the third's follows 3 on.
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const TINY_PROGRESSIVE: &[u8] = &[
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0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00, 0x01, 0x02, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0xFF, 0xC2, 0x00, 0x11,
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0x08, 0x00, 0x08, 0x00, 0x08, 0x03, 0x00, 0x11, 0x00, 0x01, 0x11, 0x01, 0x02, 0x11, 0x01, 0xFF, 0xDB, 0x00, 0x43, 0x00, 0x10, 0x0B, 0x0C, 0x0E,
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0x0C, 0x0A, 0x10, 0x0E, 0x0D, 0x0E, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, 0x1A, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, 0x1D, 0x28, 0x3A, 0x33,
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0x3D, 0x3C, 0x39, 0x33, 0x38, 0x37, 0x40, 0x48, 0x5C, 0x4E, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6D, 0x51, 0x57, 0x5F, 0x62, 0x67, 0x68,
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0x67, 0x3E, 0x4D, 0x71, 0x79, 0x70, 0x64, 0x78, 0x5C, 0x65, 0x67, 0x63, 0xFF, 0xDB, 0x00, 0x43, 0x01, 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2F,
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0x1A, 0x1A, 0x2F, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
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0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
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0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00,
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0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21,
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0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24,
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0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
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0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
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0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
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0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6,
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0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1,
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0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, 0x11, 0x00,
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0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31,
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0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15,
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0x62, 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39,
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0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
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0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4,
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0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA,
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0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6F, 0xFF, 0xDA, 0x00, 0x08,
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0x01, 0x01, 0x11, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x02, 0x11, 0x00, 0x00, 0x00, 0x7F, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x00,
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0x00, 0x01, 0x14, 0x00, 0x4D, 0xB0, 0x97, 0x8E, 0x45, 0x01, 0x08, 0x03, 0x70, 0xAF, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x01, 0x11, 0x01, 0x14, 0x00,
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0xAD, 0x17, 0xA5, 0x4A, 0x6C, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x02, 0x11, 0x01, 0x14, 0x00, 0x8A, 0x75, 0xA1, 0xCB, 0x6D, 0x62, 0x7F, 0xFF, 0xDA,
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0x00, 0x08, 0x01, 0x00, 0x00, 0x15, 0x29, 0x00, 0xE0, 0x75, 0x1C, 0x8C, 0x74, 0xAF, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x01, 0x11, 0x15, 0x29, 0x00,
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0x3F, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x02, 0x11, 0x15, 0x29, 0x00, 0x3F, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x00, 0x00, 0x2A, 0x3F, 0x00, 0xC8, 0x3C,
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0x7E, 0x1F, 0x79, 0x07, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x01, 0x11, 0x2A, 0x3F, 0x00, 0xFE, 0x96, 0x8E, 0x3F, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x02,
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0x11, 0x2A, 0x3F, 0x00, 0xF9, 0x36, 0xFF, 0x00, 0x99, 0xFB, 0xDF, 0xFF, 0xD9,
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];
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const SECOND_SAMPLING: usize = 34;
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/// An 8 × 8 baseline CMYK JPEG as jpeg-encoder 0.6 writes it at quality 50 with 2 × 2 sampling:
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/// its black is sampled 2 × 2 against 1 × 1 for the others (SOF0 at byte 36), a well-formed file
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/// of the shape the check is about, in a baseline frame.
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const TINY_BASELINE_CMYK: &[u8] = &[
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0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00, 0x01, 0x02, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0xFF, 0xEE, 0x00, 0x0E,
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0x41, 0x64, 0x6F, 0x62, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xC0, 0x00, 0x14, 0x08, 0x00, 0x08, 0x00, 0x08, 0x04, 0x00, 0x11,
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0x01, 0x01, 0x11, 0x01, 0x02, 0x11, 0x01, 0x03, 0x22, 0x00, 0xFF, 0xDB, 0x00, 0x43, 0x00, 0x10, 0x0B, 0x0C, 0x0E, 0x0C, 0x0A, 0x10, 0x0E, 0x0D,
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0x0E, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, 0x1A, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, 0x1D, 0x28, 0x3A, 0x33, 0x3D, 0x3C, 0x39, 0x33, 0x38,
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0x37, 0x40, 0x48, 0x5C, 0x4E, 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6D, 0x51, 0x57, 0x5F, 0x62, 0x67, 0x68, 0x67, 0x3E, 0x4D, 0x71, 0x79,
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0x70, 0x64, 0x78, 0x5C, 0x65, 0x67, 0x63, 0xFF, 0xDB, 0x00, 0x43, 0x01, 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2F, 0x1A, 0x1A, 0x2F, 0x63, 0x42,
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0x38, 0x42, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
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0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
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0x63, 0x63, 0x63, 0x63, 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02,
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0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51,
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0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09,
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0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47,
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0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77,
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0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5,
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0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2,
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0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6,
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0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04,
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0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07,
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0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16,
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0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46,
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0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76,
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0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3,
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0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9,
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0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6,
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0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xDA, 0x00, 0x0E, 0x04, 0x00, 0x11, 0x01, 0x11, 0x02, 0x11, 0x03, 0x00, 0x00, 0x3F, 0x00, 0xEE, 0xA6, 0xAA, 0x2A,
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0xB3, 0x83, 0x95, 0xED, 0x6D, 0x75, 0xBB, 0xF5, 0xB4, 0x97, 0x6D, 0xB6, 0x5A, 0xD9, 0x2B, 0x8D, 0x39, 0x3A, 0xB3, 0x8F, 0x54, 0xFB, 0xCB, 0xAF,
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0xFD, 0xBD, 0x7E, 0x9D, 0xDA, 0xEC, 0x96, 0xB7, 0xE2, 0x95, 0x47, 0x2A, 0x8E, 0x0B, 0x46, 0xB7, 0x77, 0x7A, 0xDD, 0xBE, 0xCD, 0x3F, 0xBD, 0xBF,
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0x2B, 0x6C, 0x0E, 0xC3, 0x6E, 0xE9, 0xB6, 0xCA, 0xE0, 0x07, 0x1B, 0xC9, 0x21, 0x95, 0x4E, 0x72, 0x54, 0x0C, 0x8E, 0x00, 0x62, 0x00, 0x5C, 0x28,
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0x45, 0xEF, 0x51, 0xFF, 0x00, 0x6B, 0xDA, 0xFF, 0x00, 0x76, 0xC7, 0xFF, 0x00, 0x01, 0x27, 0xA1, 0xFF, 0x00, 0xE3, 0xFB, 0xFE, 0xDD, 0x65, 0xFF,
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0x00, 0xD1, 0x31, 0xD6, 0x35, 0x7F, 0xFF, 0xD9,
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];
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fn with_second_sampled(hv: u8) -> Vec<u8> {
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let mut b = TINY_PROGRESSIVE.to_vec();
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b[SECOND_SAMPLING] = hv;
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b
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}
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#[test]
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fn the_jpeg_as_written_is_not_finer_than_its_first_and_decodes() {
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assert_eq!(TINY_PROGRESSIVE[SECOND_SAMPLING], 0x11);
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assert!(!images::jpeg_finer_than_first(TINY_PROGRESSIVE));
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let p = images::decode(TINY_PROGRESSIVE).expect("decoded");
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assert_eq!((p.width(), p.height()), (8, 8));
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// Chroma sampled coarser than luma (the usual way round) isn't finer either.
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assert!(!images::jpeg_finer_than_first(&{
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let mut b = TINY_PROGRESSIVE.to_vec();
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b[SECOND_SAMPLING - 3] = 0x22;
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b
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}));
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}
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/// Without the check this test panics in the decoder (an assertion in zune-jpeg's upsampler).
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#[test]
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fn a_progressive_jpeg_sampling_a_component_finer_than_its_first_is_refused_from_its_header() {
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for hv in [0x22, 0x21, 0x12] {
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let b = with_second_sampled(hv);
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assert!(images::jpeg_finer_than_first(&b), "second component {hv:#x}");
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assert!(images::decode(&b).is_none(), "second component {hv:#x}");
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}
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let mut third = TINY_PROGRESSIVE.to_vec();
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third[SECOND_SAMPLING + 3] = 0x22;
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assert!(images::jpeg_finer_than_first(&third));
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assert!(images::decode(&third).is_none());
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}
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#[test]
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fn baseline_frames_and_other_files_are_left_to_the_decoder() {
|
||
// A well-formed baseline frame with its black sampled finer than its cyan: the decoder takes
|
||
// it, so it isn't refused from its header.
|
||
assert!(!images::jpeg_finer_than_first(TINY_BASELINE_CMYK));
|
||
let p = images::decode(TINY_BASELINE_CMYK).expect("decoded");
|
||
assert_eq!((p.width(), p.height()), (8, 8));
|
||
// Not JPEGs, or JPEGs that end before their frame.
|
||
let mut png = Vec::new();
|
||
image::RgbaImage::from_pixel(4, 4, image::Rgba([1, 2, 3, 255])).write_to(&mut Cursor::new(&mut png), image::ImageFormat::Png).unwrap();
|
||
assert!(!images::jpeg_finer_than_first(&png));
|
||
assert!(!images::jpeg_finer_than_first(&TINY_PROGRESSIVE[..19]));
|
||
assert!(!images::jpeg_finer_than_first(&[0xFF, 0xD8]));
|
||
assert!(!images::jpeg_finer_than_first(&[]));
|
||
assert!(images::decode(&TINY_PROGRESSIVE[..19]).is_none());
|
||
}
|