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#![cfg_attr(feature="clippy", feature(plugin))]
#![cfg_attr(feature="clippy", plugin(clippy))]
extern crate dns_lookup;
#[macro_use]
extern crate lazy_static;
extern crate params;
#[cfg(feature = "pg")]
extern crate postgres;
extern crate regex;
extern crate serde_json;
extern crate url;
use params::{Map, Value};
use std::collections::BTreeMap;
mod validators {
pub mod accepted;
pub mod active_url;
pub mod alpha;
pub mod alpha_dash;
pub mod alpha_numeric;
pub mod array;
pub mod between;
pub mod boolean;
pub mod confirmed;
pub mod different;
pub mod digits;
pub mod digits_between;
pub mod distinct;
pub mod email;
#[cfg(feature = "pg")]
pub mod exists;
pub mod filled;
pub mod in_const;
pub mod in_array;
pub mod integer;
pub mod ip_address;
pub mod json;
pub mod max;
pub mod min;
pub mod not_in;
pub mod not_in_array;
pub mod numeric;
pub mod present;
pub mod regex;
pub mod required;
pub mod required_if;
pub mod required_unless;
pub mod required_with;
pub mod required_with_all;
pub mod required_without;
pub mod required_without_all;
pub mod same;
pub mod size;
pub mod string;
#[cfg(feature = "pg")]
pub mod unique;
pub mod url;
}
#[derive(Debug,Clone)]
pub enum Rule<'a> {
/// The field under validation must be `yes`, `on`, `1`, or `true`.
/// This is useful for validating "Terms of Service" acceptance.
///
/// On success, will transform the input to a boolean `true`.
Accepted,
/// The field under validation, if present, must be an active domain name.
ActiveUrl,
/// The field under validation must be entirely alphabetic characters.
///
/// This validator accepts Latin and international (Unicode) input.
Alpha,
/// The field under validation may have alpha-numeric characters,
/// as well as dashes and underscores.
///
/// This validator accepts Latin and international (Unicode) input.
AlphaDash,
/// The field under validation must be entirely alpha-numeric characters.
///
/// This validator accepts Latin and international (Unicode) input.
AlphaNumeric,
/// The field under validation, if present, must be an array.
Array,
/// The field under validation, if present, must have a size between the given min and max.
/// Strings, numerics, and files are evaluated in the same fashion as the `Size` rule.
Between(isize, isize),
/// The field under validation, if present, must be able to be cast as a boolean.
/// Accepted input are `true`, `false`, `1`, `0`, `"1"`, and `"0"`.
///
/// On success, will transform the input to a boolean `true` or `false`.
Boolean,
/// The field under validation must have a matching field of `foo_confirmation`.
/// For example, if the field under validation is `password`,
/// a matching `password_confirmation` field must be present in the input.
Confirmed,
/// The field under validation must have a different value than `field`.
Different(&'static str),
/// The field under validation, if present,
/// must be numeric and must have an exact length of value.
///
/// For negative numbers, the negative sign is not counted as a digit.
/// For floating point numbers, the number of digits preceeding the decimal place
/// is counted.
///
/// On success, will transform string input to a numeric type.
Digits(usize),
/// The field under validation, if present, must have a length between the given min and max.
///
/// On success, will transform string input to a numeric type.
DigitsBetween(usize, usize),
/// When working with arrays, the field under validation must not have any duplicate values
/// if it is present.
Distinct,
/// The field under validation, if present, must be formatted as an e-mail address.
Email,
#[cfg(feature = "pg")]
/// The field under validation must exist in the given table.
/// A column name may be specified; otherwise, the name of the field is used.
Exists(&'a postgres::Connection, &'static str, Option<&'static str>),
/// The field under validation must not be empty when it is present.
Filled,
/// The field under validation, if present, must be included in the given list of values.
In(Vec<Value>),
/// The field under validation, if present, must exist in `anotherfield`'s values.
InArray(&'static str),
/// The field under validation, if present, must be an integer.
///
/// On success, will transform string input to a numeric type.
Integer,
/// The field under validation, if present, must be an IP address.
///
/// Accepts both IPv4 and IPv6 addresses.
IpAddress,
/// The field under validation, if present, must be a valid JSON string.
Json,
/// The field under validation, if present, must be less than or equal to a maximum value.
/// Strings, numerics, and files are evaluated in the same fashion as the `Size` rule.
Max(isize),
/// The field under validation, if present, must have a minimum value.
/// Strings, numerics, and files are evaluated in the same fashion as the `Size` rule.
Min(isize),
/// The field under validation must not be included in the given list of values.
NotIn(Vec<Value>),
/// The field under validation must not exist in `anotherfield`'s values.
NotInArray(&'static str),
/// The field under validation, if present, must be numeric.
///
/// On success, will transform string input to a numeric type.
Numeric,
/// The field under validation must be present in the input data but can be empty.
Present,
/// The field under validation, if present, must match the given regular expression.
///
/// On success, will transform input to a string.
Regex(&'static str),
/// The field under validation must be present in the input data and not empty.
/// A field is considered "empty" if one of the following conditions are true:
///
/// The value is null.
///
/// The value is an empty string.
///
/// The value is an empty array or empty object.
Required,
/// The field under validation must be present if the `anotherfield` field
/// is equal to any `value`.
RequiredIf(&'static str, Value),
/// The field under validation must be present unless the `anotherfield` field
/// is equal to any `value`.
RequiredUnless(&'static str, Value),
/// The field under validation must be present only if
/// any of the other specified fields are present.
RequiredWith(Vec<&'static str>),
/// The field under validation must be present only if
/// all of the other specified fields are present.
RequiredWithAll(Vec<&'static str>),
/// The field under validation must be present only when
/// any of the other specified fields are not present.
RequiredWithout(Vec<&'static str>),
/// The field under validation must be present only when
/// all of the other specified fields are not present.
RequiredWithoutAll(Vec<&'static str>),
/// The given field must match the field under validation.
Same(&'static str),
/// The field under validation must have a size matching the given value.
///
/// For string data, value corresponds to the number of characters.
///
/// For numeric data, value corresponds to a given integer value.
///
/// For files, size corresponds to the file size in kilobytes.
Size(isize),
/// The field under validation, if present, must be a string.
String,
#[cfg(feature = "pg")]
/// The field under validation must not exist in the given table.
/// A column name may be specified; otherwise, the name of the field is used.
Unique(&'a postgres::Connection, &'static str, Option<&'static str>),
/// The field under validation, if present, must be formatted as a valid URL,
/// but does not need to resolve to a real website. The URL must contain the scheme
/// or else it will fail validation. For example, `http://google.com` will
/// pass validation, but `google.com` will fail validation.
Url,
#[doc(hidden)]
#[cfg(not(feature = "pg"))]
Phantom(&'a std::marker::PhantomData<u8>),
}
/// Validate a map of `values` against a map of `rules`.
///
/// Returns a `Result` containing a map of post-processed `values`,
/// or a map of validation error messages.
pub fn validate(rules: BTreeMap<&'static str, Vec<Rule>>,
values: Map)
-> Result<Map, BTreeMap<&'static str, Vec<String>>> {
let mut new_values = values;
let mut errors = BTreeMap::new();
for (field, ruleset) in &rules {
let mut current_errors = Vec::new();
for rule in ruleset {
let result = match *rule {
Rule::Accepted => validators::accepted::validate_accepted(&new_values, field),
Rule::ActiveUrl => validators::active_url::validate_active_url(&new_values, field),
Rule::Alpha => validators::alpha::validate_alpha(&new_values, field),
Rule::AlphaDash => validators::alpha_dash::validate_alpha_dash(&new_values, field),
Rule::AlphaNumeric => {
validators::alpha_numeric::validate_alpha_numeric(&new_values, field)
}
Rule::Array => validators::array::validate_array(&new_values, field),
Rule::Between(min, max) => {
validators::between::validate_between(&new_values, field, min, max)
}
Rule::Boolean => validators::boolean::validate_boolean(&new_values, field),
Rule::Confirmed => validators::confirmed::validate_confirmed(&new_values, field),
Rule::Different(other) => {
validators::different::validate_different(&new_values, field, other)
}
Rule::Digits(digits) => {
validators::digits::validate_digits(&new_values, field, digits)
}
Rule::DigitsBetween(min, max) => {
validators::digits_between::validate_digits_between(&new_values,
field,
min,
max)
}
Rule::Distinct => validators::distinct::validate_distinct(&new_values, field),
Rule::Email => validators::email::validate_email(&new_values, field),
#[cfg(feature = "pg")]
Rule::Exists(conn, table, column) => {
validators::exists::validate_exists(conn, &new_values, field, table, column)
}
Rule::Filled => validators::filled::validate_filled(&new_values, field),
Rule::In(ref options) => {
validators::in_const::validate_in(&new_values, field, options)
}
Rule::InArray(other) => {
validators::in_array::validate_in_array(&new_values, field, other)
}
Rule::Integer => validators::integer::validate_integer(&new_values, field),
Rule::IpAddress => validators::ip_address::validate_ip_address(&new_values, field),
Rule::Json => validators::json::validate_json(&new_values, field),
Rule::Max(target) => validators::max::validate_max(&new_values, field, target),
Rule::Min(target) => validators::min::validate_min(&new_values, field, target),
Rule::NotIn(ref options) => {
validators::not_in::validate_not_in(&new_values, field, options)
}
Rule::NotInArray(other) => {
validators::not_in_array::validate_not_in_array(&new_values, field, other)
}
Rule::Numeric => validators::numeric::validate_numeric(&new_values, field),
Rule::Present => validators::present::validate_present(&new_values, field),
Rule::Regex(pattern) => {
validators::regex::validate_regex(&new_values, field, pattern)
}
Rule::Required => validators::required::validate_required(&new_values, field),
Rule::RequiredIf(other, ref condition) => {
validators::required_if::validate_required_if(&new_values,
field,
other,
condition)
}
Rule::RequiredUnless(other, ref condition) => {
validators::required_unless::validate_required_unless(&new_values,
field,
other,
condition)
}
Rule::RequiredWith(ref other) => {
validators::required_with::validate_required_with(&new_values, field, other)
}
Rule::RequiredWithAll(ref other) => {
validators::required_with_all::validate_required_with_all(&new_values,
field,
other)
}
Rule::RequiredWithout(ref other) => {
validators::required_without::validate_required_without(&new_values,
field,
other)
}
Rule::RequiredWithoutAll(ref other) => {
validators::required_without_all::validate_required_without_all(&new_values,
field,
other)
}
Rule::Same(other) => validators::same::validate_same(&new_values, field, other),
Rule::Size(target) => validators::size::validate_size(&new_values, field, target),
Rule::String => validators::string::validate_string(&new_values, field),
#[cfg(feature = "pg")]
Rule::Unique(conn, table, column) => {
validators::unique::validate_unique(conn, &new_values, field, table, column)
}
Rule::Url => validators::url::validate_url(&new_values, field),
#[cfg(not(feature = "pg"))]
Rule::Phantom(_) => unimplemented!(),
};
match result {
Ok(Some(res)) => {
new_values.assign(field, res).ok();
}
Ok(None) => (),
Err(err) => {
current_errors.push(err);
}
};
}
if !current_errors.is_empty() {
errors.insert(*field, current_errors);
}
}
if errors.is_empty() {
Ok(new_values)
} else {
Err(errors)
}
}