Daan De Meyer
c36942916b
When in --empower mode, all created files will be owned by the current user, which could be problematic when creating files outside of the current user's home directory, as other processes running as the same user would be able to edit those files. While this is a bit of an edge case since users already have to go through the effort of writing --empower to indicate they want a privileged session as the current user, it's not unphatomable to think they could start an empowered session which they later return to and continue using. Currently, it's not easy to differentiate a regular run0 session and an empowered session at a glance, so users might think they're using a regular run0 session when they're actually using an empowered session. To address this problem, let's give empowered session their own identify, by making the background orange, using the pumpkin emoji as the shell prompt prefix and giving them an orange circle as the PTY title.
190 lines
11 KiB
C
190 lines
11 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <stdlib.h>
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#include "env-util.h"
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#include "glyph-util.h"
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#include "locale-util.h"
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#include "strv.h"
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bool emoji_enabled(void) {
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static int cached_emoji_enabled = -1;
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if (cached_emoji_enabled < 0) {
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int val = getenv_bool("SYSTEMD_EMOJI");
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if (val >= 0)
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return (cached_emoji_enabled = val);
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const char *term = getenv("TERM");
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if (!term || STR_IN_SET(term, "dumb", "linux"))
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return (cached_emoji_enabled = false);
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cached_emoji_enabled = is_locale_utf8();
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}
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return cached_emoji_enabled;
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}
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const char* glyph_full(Glyph code, bool force_utf) {
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/* A list of a number of interesting unicode glyphs we can use to decorate our output. It's probably wise to be
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* conservative here, and primarily stick to the glyphs defined in the eurlatgr font, so that display still
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* works reasonably well on the Linux console. For details see:
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*
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* http://git.altlinux.org/people/legion/packages/kbd.git?p=kbd.git;a=blob;f=data/consolefonts/README.eurlatgr
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*/
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static const char* const draw_table[2][_GLYPH_MAX] = {
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/* ASCII fallback */
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[false] = {
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[GLYPH_SPACE] = " ",
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[GLYPH_TREE_VERTICAL] = "| ",
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[GLYPH_TREE_BRANCH] = "|-",
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[GLYPH_TREE_RIGHT] = "`-",
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[GLYPH_TREE_SPACE] = " ",
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[GLYPH_TREE_TOP] = ",-",
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[GLYPH_VERTICAL_DOTTED] = ":",
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[GLYPH_HORIZONTAL_DOTTED] = "-",
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[GLYPH_HORIZONTAL_FAT] = "=",
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[GLYPH_TRIANGULAR_BULLET] = ">",
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[GLYPH_BLACK_CIRCLE] = "*",
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[GLYPH_WHITE_CIRCLE] = "*",
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[GLYPH_MULTIPLICATION_SIGN] = "x",
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[GLYPH_CIRCLE_ARROW] = "*",
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[GLYPH_BULLET] = "*",
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[GLYPH_MU] = "u",
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[GLYPH_CHECK_MARK] = "+",
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[GLYPH_CROSS_MARK] = "-",
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[GLYPH_LIGHT_SHADE] = "-",
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[GLYPH_DARK_SHADE] = "X",
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[GLYPH_FULL_BLOCK] = "#",
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[GLYPH_SIGMA] = "S",
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[GLYPH_ARROW_UP] = "^",
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[GLYPH_ARROW_DOWN] = "v",
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[GLYPH_ARROW_LEFT] = "<-",
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[GLYPH_ARROW_RIGHT] = "->",
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[GLYPH_ELLIPSIS] = "...",
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[GLYPH_EXTERNAL_LINK] = "[LNK]",
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[GLYPH_ECSTATIC_SMILEY] = ":-]",
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[GLYPH_HAPPY_SMILEY] = ":-}",
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[GLYPH_SLIGHTLY_HAPPY_SMILEY] = ":-)",
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[GLYPH_NEUTRAL_SMILEY] = ":-|",
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[GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = ":-(",
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[GLYPH_UNHAPPY_SMILEY] = ":-{",
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[GLYPH_DEPRESSED_SMILEY] = ":-[",
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[GLYPH_LOCK_AND_KEY] = "o-,",
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[GLYPH_TOUCH] = "O=", /* Yeah, not very convincing, can you do it better? */
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[GLYPH_RECYCLING] = "~",
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[GLYPH_DOWNLOAD] = "\\",
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[GLYPH_SPARKLES] = "*",
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[GLYPH_LOW_BATTERY] = "!",
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[GLYPH_WARNING_SIGN] = "!",
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[GLYPH_COMPUTER_DISK] = "o",
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[GLYPH_WORLD] = "W",
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[GLYPH_RED_CIRCLE] = "o",
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[GLYPH_ORANGE_CIRCLE] = "o",
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[GLYPH_YELLOW_CIRCLE] = "o",
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[GLYPH_BLUE_CIRCLE] = "o",
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[GLYPH_GREEN_CIRCLE] = "o",
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[GLYPH_SUPERHERO] = "S",
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[GLYPH_PUMPKIN] = "P",
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[GLYPH_IDCARD] = "@",
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[GLYPH_HOME] = "^",
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[GLYPH_ROCKET] = "^",
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[GLYPH_BROOM] = "/",
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[GLYPH_KEYBOARD] = "K",
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[GLYPH_CLOCK] = "O",
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[GLYPH_LABEL] = "L",
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[GLYPH_SHELL] = "$",
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},
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/* UTF-8 */
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[true] = {
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/* This exists to allow more consistent handling of optional whitespace */
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[GLYPH_SPACE] = " ",
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/* The following are multiple glyphs in both ASCII and in UNICODE */
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[GLYPH_TREE_VERTICAL] = UTF8("│ "),
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[GLYPH_TREE_BRANCH] = UTF8("├─"),
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[GLYPH_TREE_RIGHT] = UTF8("└─"),
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[GLYPH_TREE_SPACE] = UTF8(" "),
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[GLYPH_TREE_TOP] = UTF8("┌─"),
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/* Single glyphs in both cases */
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[GLYPH_VERTICAL_DOTTED] = UTF8("┆"),
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[GLYPH_HORIZONTAL_DOTTED] = UTF8("┄"),
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[GLYPH_HORIZONTAL_FAT] = UTF8("━"),
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[GLYPH_TRIANGULAR_BULLET] = UTF8("‣"),
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[GLYPH_BLACK_CIRCLE] = UTF8("●"),
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[GLYPH_WHITE_CIRCLE] = UTF8("○"),
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[GLYPH_MULTIPLICATION_SIGN] = UTF8("×"),
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[GLYPH_CIRCLE_ARROW] = UTF8("↻"),
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[GLYPH_BULLET] = UTF8("•"),
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[GLYPH_MU] = UTF8("μ"), /* actually called: GREEK SMALL LETTER MU */
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[GLYPH_CHECK_MARK] = UTF8("✓"),
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[GLYPH_CROSS_MARK] = UTF8("✗"), /* actually called: BALLOT X */
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[GLYPH_LIGHT_SHADE] = UTF8("░"),
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[GLYPH_DARK_SHADE] = UTF8("▒"),
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[GLYPH_FULL_BLOCK] = UTF8("█"),
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[GLYPH_SIGMA] = UTF8("Σ"),
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[GLYPH_ARROW_UP] = UTF8("↑"), /* actually called: UPWARDS ARROW */
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[GLYPH_ARROW_DOWN] = UTF8("↓"), /* actually called: DOWNWARDS ARROW */
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/* Single glyph in Unicode, two in ASCII */
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[GLYPH_ARROW_LEFT] = UTF8("←"), /* actually called: LEFTWARDS ARROW */
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[GLYPH_ARROW_RIGHT] = UTF8("→"), /* actually called: RIGHTWARDS ARROW */
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/* Single glyph in Unicode, three in ASCII */
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[GLYPH_ELLIPSIS] = UTF8("…"), /* actually called: HORIZONTAL ELLIPSIS */
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/* Three glyphs in Unicode, five in ASCII */
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[GLYPH_EXTERNAL_LINK] = UTF8("[🡕]"), /* actually called: NORTH EAST SANS-SERIF ARROW, enclosed in [] */
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/* These smileys are a single glyph in Unicode, and three in ASCII */
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[GLYPH_ECSTATIC_SMILEY] = UTF8("😇"), /* actually called: SMILING FACE WITH HALO */
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[GLYPH_HAPPY_SMILEY] = UTF8("😀"), /* actually called: GRINNING FACE */
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[GLYPH_SLIGHTLY_HAPPY_SMILEY] = UTF8("🙂"), /* actually called: SLIGHTLY SMILING FACE */
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[GLYPH_NEUTRAL_SMILEY] = UTF8("😐"), /* actually called: NEUTRAL FACE */
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[GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = UTF8("🙁"), /* actually called: SLIGHTLY FROWNING FACE */
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[GLYPH_UNHAPPY_SMILEY] = UTF8("😨"), /* actually called: FEARFUL FACE */
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[GLYPH_DEPRESSED_SMILEY] = UTF8("🤢"), /* actually called: NAUSEATED FACE */
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/* This emoji is a single character cell glyph in Unicode, and three in ASCII */
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[GLYPH_LOCK_AND_KEY] = UTF8("🔐"), /* actually called: CLOSED LOCK WITH KEY */
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/* This emoji is a single character cell glyph in Unicode, and two in ASCII */
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[GLYPH_TOUCH] = UTF8("👆"), /* actually called: BACKHAND INDEX POINTING UP */
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/* These four emojis are single character cell glyphs in Unicode and also in ASCII. */
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[GLYPH_RECYCLING] = UTF8("♻️"), /* actually called: UNIVERSAL RECYCLNG SYMBOL */
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[GLYPH_DOWNLOAD] = UTF8("⤵️"), /* actually called: RIGHT ARROW CURVING DOWN */
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[GLYPH_SPARKLES] = UTF8("✨"),
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[GLYPH_LOW_BATTERY] = UTF8("🪫"),
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[GLYPH_WARNING_SIGN] = UTF8("⚠️"),
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[GLYPH_COMPUTER_DISK] = UTF8("💽"),
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[GLYPH_WORLD] = UTF8("🌍"),
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[GLYPH_RED_CIRCLE] = UTF8("🔴"),
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[GLYPH_ORANGE_CIRCLE] = UTF8("🟠"),
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[GLYPH_YELLOW_CIRCLE] = UTF8("🟡"),
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[GLYPH_BLUE_CIRCLE] = UTF8("🔵"),
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[GLYPH_GREEN_CIRCLE] = UTF8("🟢"),
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[GLYPH_SUPERHERO] = UTF8("🦸"),
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[GLYPH_PUMPKIN] = UTF8("🎃"),
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[GLYPH_IDCARD] = UTF8("🪪"),
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[GLYPH_HOME] = UTF8("🏠"),
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[GLYPH_ROCKET] = UTF8("🚀"),
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[GLYPH_BROOM] = UTF8("🧹"),
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[GLYPH_KEYBOARD] = UTF8("⌨️"),
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[GLYPH_CLOCK] = UTF8("🕗"),
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[GLYPH_LABEL] = UTF8("🏷️"),
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[GLYPH_SHELL] = UTF8("🐚"),
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},
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};
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if (code < 0)
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return NULL;
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assert(code < _GLYPH_MAX);
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return draw_table[force_utf || (code >= _GLYPH_FIRST_EMOJI ? emoji_enabled() : is_locale_utf8())][code];
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}
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