[Kimchi-devel] [PATCH V3 3/5] Validate graphics parameters input by users

[Aline Manera]

On 12/22/2013 06:43 AM, apporc wrote:
> 1.  Validate graphics parameters from rest requester, with newly added
>      json schema in kimchi.
>
> 2.  Because we are now using jsonschema.Draft3Validator in kimchi, which
>      doesn't support 'oneOf' property, so i can not use this:
>          "listen": {
>              "type": "string",
>          "oneOf": [
>                  { "format": "ip-address" },
>                  { "format": "ipv6"}
>      As ipv6 is not urgent, i think just 'ipv4' validation should be enough by now.
>      Which is :
>          "type": { "enum": ["spice", "vnc"] },
>          "listen": {
>              "type": "string",
>              "format": "ip-address"
>          }
>      We can add ipv6 validation here when the os distribution we based on provided
>      high versions of jsonschema, or when we are about to replace Draft3Validator
>      with Draft4Validator.

Not sure if it can help in this case: 
http://stackoverflow.com/questions/14550235/json-schema-away-to-specify-an-any-type-schema-with-certain-required-fields

>
> 3.  To use "format" property, i need to hook format_checker for Draft3Validator in controller.py.
>
> Signed-off-by: apporc <appleorchard2000 at gmail.com>
> ---
>   src/kimchi/API.json      | 33 +++++++++++++++++++++++++++++++++
>   src/kimchi/controller.py |  4 ++--
>   2 files changed, 35 insertions(+), 2 deletions(-)
>
> diff --git a/src/kimchi/API.json b/src/kimchi/API.json
> index 7b90826..0f97f0e 100644
> --- a/src/kimchi/API.json
> +++ b/src/kimchi/API.json
> @@ -21,6 +21,17 @@
>                       "description": "Assign a specefic Storage Pool to the new VM",
>                       "type": "string",
>                       "pattern": "^/storagepools/[^/]+/?$"
> +                },
> +                "graphics": {
> +                    "description": "Configure graphics parameters for the new VM",
> +                    "type": "object",
> +                    "properties": {
> +                        "type": { "enum": ["spice", "vnc"] },
> +                        "listen": {
> +                            "type": "string",
> +                            "format": "ip-address"
> +                        }
> +                    }
>                   }
>               }
>           },
> @@ -129,6 +140,17 @@
>                       "description": "Folder",
>                       "type": "array",
>                       "items": { "type": "string" }
> +                },
> +                "graphics": {
> +                    "description": "Configure graphics parameters for the new VM",
> +                    "type": "object",
> +                    "properties": {
> +                        "type": { "enum": ["spice", "vnc"] },
> +                        "listen": {
> +                            "type": "string",
> +                            "format": "ip-address"
> +                        }
> +                    }
>                   }
>               },
>               "additionalProperties": false
> @@ -202,6 +224,17 @@
>                       "description": "Folder",
>                       "type": "array",
>                       "items": { "type": "string" }
> +                },
> +                "graphics": {
> +                    "description": "Configure graphics parameters for the new VM",
> +                    "type": "object",
> +                    "properties": {
> +                        "type": { "enum": ["spice", "vnc"] },
> +                        "listen": {
> +                            "type": "string",
> +                            "format": "ip-address"
> +                        }
> +                    }
>                   }
>               },
>               "additionalProperties": false
> diff --git a/src/kimchi/controller.py b/src/kimchi/controller.py
> index dacaa6a..003adf2 100644
> --- a/src/kimchi/controller.py
> +++ b/src/kimchi/controller.py
> @@ -26,7 +26,7 @@ import urllib2
>
>
>   from functools import wraps
> -from jsonschema import Draft3Validator, ValidationError
> +from jsonschema import Draft3Validator, ValidationError, FormatChecker
>
>
>   import kimchi.template
> @@ -94,7 +94,7 @@ def validate_params(params, instance, action):
>       else:
>           return
>       operation = model_fn(instance, action)
> -    validator = Draft3Validator(api_schema)
> +    validator = Draft3Validator(api_schema, format_checker=FormatChecker())
>       request = {operation: params}
>       try:
>           validator.validate(request)