obs-server emits unencoded characters

[jengelh]

As discovered in openSUSE/osc#1681 , obs-server generates XML with unescaped characters, e.g. ANSI/ECMA color codes:

$ osc api /comments/request/1179916 | hexdump -C
00000000  3c 63 6f 6d 6d 65 6e 74  73 20 72 65 71 75 65 73  |<comments reques|
00000010  74 3d 22 31 31 37 39 39  31 36 22 3e 0a 20 20 3c  |t="1179916">.  <|
00000020  63 6f 6d 6d 65 6e 74 20  77 68 6f 3d 22 64 69 6d  |comment who="dim|
00000030  73 74 61 72 22 20 77 68  65 6e 3d 22 32 30 32 34  |star" when="2024|
00000040  2d 30 36 2d 31 31 20 31  33 3a 32 30 3a 34 37 20  |-06-11 13:20:47 |
00000050  55 54 43 22 20 69 64 3d  22 31 39 34 37 33 33 34  |UTC" id="1947334|
00000060  22 3e 79 6f 75 20 42 52  20 70 6f 73 74 67 72 65  |">you BR postgre|
00000070  73 71 6c 2c 20 79 65 74  2c 20 74 68 65 20 73 75  |sql, yet, the su|
00000080  70 70 6f 72 74 20 66 6f  72 20 74 68 61 74 20 69  |pport for that i|
00000090  73 20 64 69 73 61 62 6c  65 64 3a 0d 0a 0d 0a 60  |s disabled:....`|
000000a0  60 60 5b 20 20 20 31 35  73 5d 20 7c 20 20 50 6f  |``[   15s] |  Po|
000000b0  73 74 67 72 65 53 51 4c  3a 20 20 20 20 20 20 20  |stgreSQL:       |
000000c0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000000d0  20 20 20 20 20 20 20 20  20 20 20 20 1b 5b 33 38  |            .[38|
000000e0  6d 44 49 53 41 42 4c 45  44 1b 5b 6d 0f 20 20 20  |mDISABLED.[m.   |
000000f0  20 20 20 7c 60 60 60 3c  2f 63 6f 6d 6d 65 6e 74  |   |```</comment|
00000100  3e 0a 3c 2f 63 6f 6d 6d  65 6e 74 73 3e 0a        |>.</comments>.|

judging from the python-xml etree error in the other ticket, obs-server should probably encode the \x1b character(s) to  or something.