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To: Stoiko Ivanov <s.ivanov@proxmox.com>
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From: Christian Ebner <c.ebner@proxmox.com>
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Subject: Re: [pve-devel] [PATCH pve-installer] answer: perform basic input
 validation for keyboard
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On 4/24/24 11:20, Stoiko Ivanov wrote:
> On Wed, 24 Apr 2024 10:48:50 +0200
> Christian Ebner <c.ebner@proxmox.com> wrote:
> 
>> Currently it is possible to validate and create an iso with an
>> invalid keyboad layout, only failing later during installation.
>>
>> Add a basic check for correct keyboard layout by defining an enum
>> with allowed variants.
>>
>> Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
>> ---
>>   proxmox-auto-installer/src/answer.rs | 39 +++++++++++++++++++++++++++-
>>   proxmox-auto-installer/src/utils.rs  |  8 ++++--
>>   2 files changed, 44 insertions(+), 3 deletions(-)
>>
>> diff --git a/proxmox-auto-installer/src/answer.rs b/proxmox-auto-installer/src/answer.rs
>> index a6cf8b7..af7485a 100644
>> --- a/proxmox-auto-installer/src/answer.rs
>> +++ b/proxmox-auto-installer/src/answer.rs
>> @@ -23,7 +23,7 @@ pub struct Answer {
>>   pub struct Global {
>>       pub country: String,
>>       pub fqdn: Fqdn,
>> -    pub keyboard: String,
>> +    pub keyboard: KeyboardLayout,
>>       pub mailto: String,
>>       pub timezone: String,
>>       pub root_password: String,
>> @@ -270,3 +270,40 @@ pub struct BtrfsOptions {
>>       pub hdsize: Option<f64>,
>>       pub raid: Option<BtrfsRaidLevel>,
>>   }
>> +
>> +#[derive(Clone, Deserialize, Serialize, Debug, PartialEq)]
>> +#[serde(rename_all = "kebab-case", deny_unknown_fields)]
>> +pub enum KeyboardLayout {
>> +    De,
>> +    DeCh,
>> +    Dk,
>> +    EnGb,
>> +    EnUs,
>> +    Es,
>> +    Fi,
>> +    Fr,
>> +    FrBe,
>> +    FrCa,
>> +    FrCh,
>> +    Hu,
>> +    Is,
>> +    It,
>> +    Jp,
>> +    Lt,
>> +    Mk,
>> +    Nl,
>> +    No,
>> +    Pl,
>> +    Pt,
>> +    PtBr,
>> +    Se,
>> +    Si,
>> +    Tr,
>> +}
>> +
> quickly looked at that as well yesterday - and I also ran into the issue
> that we get the relevant data in the installer itself (where actual
> validation takes place).
> 
> with the target to have the auto-install-assistant available as single
> static binary - I think your approach works well enough - the one thing
> that might be an improvment is to get the data from country.dat (a
> build-artefact output from country.pl based on
> /usr/share/iso-codes/json/iso_3166-1.json ) at build-time and embed it in the binary.
> (but I did not get around to checking how this is done sensibly in rust)

Agreed, this would however still produce ISOs with possible inconsistent 
variants, if the `country.dat` in the ISO and the one used for 
compilation of the binary are out of sync (which probably will happen 
not that often).

> 
> additionally we could verify the country selection as well with that.
> 
> 
>> +impl std::fmt::Display for KeyboardLayout {
>> +    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
>> +        let keyboard_layout = serde_json::to_value(self).unwrap().to_string();
>> +        write!(f, "{}", keyboard_layout.trim_matches('\"'))
>> +    }
>> +}
>> diff --git a/proxmox-auto-installer/src/utils.rs b/proxmox-auto-installer/src/utils.rs
>> index 7e1366c..202ad41 100644
>> --- a/proxmox-auto-installer/src/utils.rs
>> +++ b/proxmox-auto-installer/src/utils.rs
>> @@ -281,7 +281,11 @@ pub fn verify_locale_settings(answer: &Answer, locales: &LocaleInfo) -> Result<(
>>       {
>>           bail!("country code '{}' is not valid", &answer.global.country);
>>       }
>> -    if !locales.kmap.keys().any(|i| i == &answer.global.keyboard) {
>> +    if !locales
>> +        .kmap
>> +        .keys()
>> +        .any(|i| i == &answer.global.keyboard.to_string())
>> +    {
>>           bail!("keyboard layout '{}' is not valid", &answer.global.keyboard);
>>       }
>>   
>> @@ -328,7 +332,7 @@ pub fn parse_answer(
>>   
>>           country: answer.global.country.clone(),
>>           timezone: answer.global.timezone.clone(),
>> -        keymap: answer.global.keyboard.clone(),
>> +        keymap: answer.global.keyboard.to_string(),
>>   
>>           password: answer.global.root_password.clone(),
>>           mailto: answer.global.mailto.clone(),
> 



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