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| 1 | +import type {PrivilegedProgram} from "../../types"; |
| 2 | + |
| 3 | +import {ANSI, NEWLINE} from "../../term_ctl"; |
| 4 | + |
| 5 | +export default { |
| 6 | + name: "recovery", |
| 7 | + description: "Emergency recovery environment", |
| 8 | + usage_suffix: "", |
| 9 | + arg_descriptions: {}, |
| 10 | + hide_from_help: true, |
| 11 | + compat: "2.0.0", |
| 12 | + main: async (data) => { |
| 13 | + const { kernel, term } = data; |
| 14 | + |
| 15 | + const {CURSOR} = ANSI; |
| 16 | + |
| 17 | + if (!kernel.privileged) { |
| 18 | + term.writeln("Recovery requires privileged environment."); |
| 19 | + return 1; |
| 20 | + } |
| 21 | + |
| 22 | + let running = true; |
| 23 | + while (running) { |
| 24 | + term.reset(); |
| 25 | + |
| 26 | + term.writeln("RECOVERY ENVIRONMENT"); |
| 27 | + term.writeln("==================="); |
| 28 | + term.write(NEWLINE); |
| 29 | + term.writeln("1. Reboot"); |
| 30 | + term.writeln("2. Privileged ash shell"); |
| 31 | + term.writeln("3. Reset bootloader and reboot"); |
| 32 | + term.writeln("4. Wipe filesystem and reboot"); |
| 33 | + term.write(NEWLINE); |
| 34 | + term.writeln("X: Exit recovery"); |
| 35 | + term.write(NEWLINE); |
| 36 | + term.writeln("Press the corresponding key to select an option."); |
| 37 | + |
| 38 | + if (typeof window !== "undefined") { |
| 39 | + term.writeln(`Recovery also available at ${window.location.origin}/recover_fs`); |
| 40 | + } |
| 41 | + |
| 42 | + term.write(CURSOR.invisible); |
| 43 | + |
| 44 | + const key = await term.wait_for_keypress(); |
| 45 | + |
| 46 | + switch (key.key.toLowerCase()) { |
| 47 | + case "1": |
| 48 | + term.writeln(NEWLINE + "Rebooting..."); |
| 49 | + window.location.reload(); |
| 50 | + break; |
| 51 | + case "2": { |
| 52 | + term.writeln(NEWLINE + "Starting privileged ash shell..."); |
| 53 | + term.write(CURSOR.visible); |
| 54 | + |
| 55 | + // TODO: this doesnt make much difference being privileged as the programs are separate processes |
| 56 | + // TODO: bypass the privilege agent instead |
| 57 | + let exit_code: number; |
| 58 | + const shell = kernel.spawn("ash", ["--no-scripts"], undefined, true); |
| 59 | + try { |
| 60 | + exit_code = await shell.completion; |
| 61 | + } catch (e) { |
| 62 | + exit_code = -1; |
| 63 | + term.writeln("Error in privileged shell:"); |
| 64 | + term.writeln(e); |
| 65 | + } |
| 66 | + |
| 67 | + shell.process.kill(exit_code) |
| 68 | + } |
| 69 | + break; |
| 70 | + case "3": { |
| 71 | + term.writeln("Are you sure you want to reset the bootloader? This will clear your choice of init system, boot target, default shell, and privilege agent but retains your files."); |
| 72 | + term.writeln("Press Y to confirm, or any other key to cancel."); |
| 73 | + |
| 74 | + const confirm_key = await term.wait_for_keypress(); |
| 75 | + if (confirm_key.key.toLowerCase() !== "y") { |
| 76 | + term.writeln("Bootloader reset cancelled."); |
| 77 | + break; |
| 78 | + } |
| 79 | + |
| 80 | + term.writeln(NEWLINE + "Resetting bootloader..."); |
| 81 | + |
| 82 | + // delete /boot/init, /etc/boot_target, /etc/default_shell, /sys/privilege_agent |
| 83 | + const fs = kernel.get_fs(); |
| 84 | + try { |
| 85 | + await fs.delete_file("/boot/init"); |
| 86 | + } catch (e) { |
| 87 | + term.writeln("Warning: Failed to delete /boot/init"); |
| 88 | + term.writeln(e); |
| 89 | + } |
| 90 | + |
| 91 | + try { |
| 92 | + await fs.delete_file("/etc/boot_target"); |
| 93 | + } catch (e) { |
| 94 | + term.writeln("Warning: Failed to delete /etc/boot_target"); |
| 95 | + term.writeln(e); |
| 96 | + } |
| 97 | + |
| 98 | + try { |
| 99 | + await fs.delete_file("/etc/default_shell"); |
| 100 | + } catch (e) { |
| 101 | + term.writeln("Warning: Failed to delete /etc/default_shell"); |
| 102 | + term.writeln(e); |
| 103 | + } |
| 104 | + |
| 105 | + try { |
| 106 | + await fs.delete_file("/sys/privilege_agent"); |
| 107 | + } catch (e) { |
| 108 | + term.writeln("Warning: Failed to delete /sys/privilege_agent"); |
| 109 | + term.writeln(e); |
| 110 | + } |
| 111 | + |
| 112 | + term.writeln("Rebooting..."); |
| 113 | + window.location.reload(); |
| 114 | + } |
| 115 | + break; |
| 116 | + case "4": { |
| 117 | + term.writeln("Are you sure you want to erase the filesystem? This action cannot be undone."); |
| 118 | + term.writeln("Press Y to confirm, or any other key to cancel."); |
| 119 | + |
| 120 | + const confirm_key = await term.wait_for_keypress(); |
| 121 | + if (confirm_key.key.toLowerCase() !== "y") { |
| 122 | + term.writeln("Filesystem wipe cancelled."); |
| 123 | + break; |
| 124 | + } |
| 125 | + |
| 126 | + term.writeln(NEWLINE + "Wiping filesystem..."); |
| 127 | + |
| 128 | + const fs = kernel.get_fs(); |
| 129 | + try { |
| 130 | + await fs.erase_all(); |
| 131 | + } catch (e) { |
| 132 | + term.writeln("Error: Failed to wipe filesystem."); |
| 133 | + term.writeln(e); |
| 134 | + } |
| 135 | + |
| 136 | + term.writeln("Rebooting..."); |
| 137 | + window.location.reload(); |
| 138 | + } |
| 139 | + break; |
| 140 | + case "x": |
| 141 | + term.writeln(NEWLINE + "Exiting recovery."); |
| 142 | + running = false; |
| 143 | + break; |
| 144 | + default: |
| 145 | + // ignore other keys |
| 146 | + break; |
| 147 | + } |
| 148 | + } |
| 149 | + |
| 150 | + return 0; |
| 151 | + } |
| 152 | +} as PrivilegedProgram; |
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