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// This file is part of feed.
//
// Copyright © 2015-2017 Chris Palmer <pennstate5013@gmail.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//! `Validate` Trait for `Channel`
use CategoryBuilder;
use CategoryGetters;
use ChannelBuilder;
use ChannelGetters;
use CloudBuilder;
use CloudGetters;
use EnclosureBuilder;
use EnclosureGetters;
use GuidBuilder;
use GuidGetters;
use ImageBuilder;
use ImageGetters;
use ItemBuilder;
use ItemGetters;
use SourceBuilder;
use SourceGetters;
use TextInputBuilder;
use TextInputGetters;
use Validate;
use extension::itunes::{ITunesCategoryBuilder, ITunesCategoryGetters, ITunesChannelExtensionBuilder,
ITunesChannelExtensionGetters, ITunesItemExtensionBuilder, ITunesItemExtensionGetters,
ITunesOwnerBuilder, ITunesOwnerGetters};
use rss::{Category, Channel, Item};
use rss::extension::itunes::ITunesCategory;
use utils::string_utils;
impl Validate for Channel
{
/// Validate `Channel`
///
/// ## Examples
/// ```
/// extern crate rss;
/// extern crate feed;
///
/// use feed::{FromUrl, ChannelGetters, Validate};
/// use rss::Channel;
///
/// fn main()
/// {
/// let url = "https://feedpress.me/usererror.xml";
///
/// let channel = Channel::from_url(url).unwrap();
/// channel.validate().unwrap();
/// }
/// ```
fn validate(&self) -> Result<Channel, String>
{
let cloud = match self.cloud()
{
None => None,
Some(val) =>
{
Some(CloudBuilder::new()
.domain(val.domain().as_str())
.port(string_utils::string_to_i64(val.port().as_str())?)
.path(val.path().as_str())
.register_procedure(val.register_procedure().as_str())
.protocol(val.protocol().as_str())
.validate()?
.finalize()?)
}
};
let mut channel_cat: Vec<Category> = Vec::new();
for cat in self.categories()
{
channel_cat.push(CategoryBuilder::new()
.name(cat.name().as_str())
.domain(cat.domain())
.validate()?
.finalize()?);
}
let mut skip_hours: Vec<i64> = Vec::new();
for hour in self.skip_hours()
{
skip_hours.push(string_utils::string_to_i64(hour.as_str())?);
}
let image = match self.image()
{
None => None,
Some(val) =>
{
Some(ImageBuilder::new()
.url(val.url().as_str())
.title(val.title().as_str())
.link(val.link().as_str())
.width(string_utils::option_string_to_option_i64(val.width())?)
.height(string_utils::option_string_to_option_i64(val.height())?)
.description(val.description())
.validate()?
.finalize()?)
}
};
let text_input = match self.text_input()
{
None => None,
Some(val) =>
{
Some(TextInputBuilder::new()
.title(val.title().as_str())
.description(val.description().as_str())
.name(val.name().as_str())
.link(val.link().as_str())
.validate()?
.finalize()?)
}
};
let mut items: Vec<Item> = Vec::new();
for item in self.items()
{
let mut item_cat: Vec<Category> = Vec::new();
for cat in item.categories()
{
item_cat.push(CategoryBuilder::new()
.name(cat.name().as_str())
.domain(cat.domain())
.validate()?
.finalize()?);
}
let enclosure = match item.enclosure()
{
None => None,
Some(eval) =>
{
Some(EnclosureBuilder::new()
.url(eval.url().as_str())
.length(string_utils::string_to_i64(eval.length.as_str())?)
.mime_type(eval.mime_type().as_str())
.validate()?
.finalize()?)
}
};
let guid = match item.guid()
{
None => None,
Some(gval) =>
{
Some(GuidBuilder::new()
.value(gval.value().as_str())
.is_permalink(Some(gval.is_permalink()))
.finalize()?)
}
};
let source = match item.source()
{
None => None,
Some(sval) =>
{
Some(SourceBuilder::new()
.url(sval.url().as_str())
.title(sval.title())
.validate()?
.finalize()?)
}
};
let itunes_item = match item.itunes_ext()
{
None => None,
Some(ival) =>
{
Some(ITunesItemExtensionBuilder::new()
.author(ival.author())
.block(ival.block())
.image(ival.image())
.duration(ival.duration())
.explicit(ival.explicit())
.closed_captioned(ival.closed_captioned())
.order(ival.order())
.subtitle(ival.subtitle())
.summary(ival.summary())
.keywords(ival.keywords())
.finalize()?)
}
};
items.push(ItemBuilder::new()
.title(item.title())
.link(item.link())
.description(item.description())
.author(item.author())
.pub_date(item.pub_date())
.comments(item.comments())
.categories(item_cat)
.enclosure(enclosure)
.guid(guid)
.source(source)
.itunes_ext(itunes_item)
.validate()?
.finalize()?);
}
let itunes_channel = match self.itunes_ext()
{
None => None,
Some(cval) =>
{
let itunes_owner = match cval.owner()
{
None => None,
Some(oval) =>
{
Some(ITunesOwnerBuilder::new()
.name(oval.name())
.email(oval.email())
.finalize()?)
}
};
let mut itunes_cat: Vec<ITunesCategory> = Vec::new();
for cat in cval.categories()
{
itunes_cat.push(ITunesCategoryBuilder::new()
.text(cat.text().as_str())
.subcategory(cat.subcategory())
.finalize()?);
}
Some(ITunesChannelExtensionBuilder::new()
.author(cval.author())
.block(cval.block())
.image(cval.image())
.explicit(cval.explicit())
.complete(cval.complete())
.new_feed_url(cval.new_feed_url())
.subtitle(cval.subtitle())
.summary(cval.summary())
.keywords(cval.keywords())
.categories(itunes_cat)
.owner(itunes_owner)
.finalize()?)
}
};
ChannelBuilder::new()
.title(self.title().as_str())
.link(self.link().as_str())
.description(self.description().as_str())
.language(self.language())
.copyright(self.copyright())
.managing_editor(self.managing_editor())
.webmaster(self.webmaster())
.pub_date(self.pub_date())
.last_build_date(self.last_build_date())
.generator(self.generator())
.docs(self.docs())
.rating(None)
.ttl(string_utils::option_string_to_option_i64(self.ttl())?)
.cloud(cloud)
.categories(channel_cat)
.image(image)
.text_input(text_input)
.skip_hours(skip_hours)
.skip_days(self.skip_days())
.items(items)
.itunes_ext(itunes_channel)
.validate()?
.finalize()
}
}