158 lines
6.5 KiB
Go
158 lines
6.5 KiB
Go
// Package podcast generates a fully compliant iTunes and RSS 2.0 podcast feed
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// for GoLang using a simple API.
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//
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// Full documentation with detailed examples located at https://godoc.org/github.com/eduncan911/podcast
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//
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// Usage
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//
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// To use, `go get` and `import` the package like your typical GoLang library.
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//
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// $ go get -u github.com/eduncan911/podcast
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//
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// import "github.com/eduncan911/podcast"
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//
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// The API exposes a number of method receivers on structs that implements the
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// logic required to comply with the specifications and ensure a compliant feed.
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// A number of overrides occur to help with iTunes visibility of your episodes.
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//
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// Notably, the `Podcast.AddItem` function performs most
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// of the heavy lifting by taking the `Item` input and performing
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// validation, overrides and duplicate setters through the feed.
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//
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// Full detailed Examples of the API are at https://godoc.org/github.com/eduncan911/podcast.
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//
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// Go Modules
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//
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// This library is supported on GoLang 1.7 and higher.
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//
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// We have implemented Go Modules support and the CI pipeline shows it working with
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// new installs, tested with Go 1.13. To keep 1.7 compatibility, we use
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// `go mod vendor` to maintain the `vendor/` folder for older 1.7 and later runtimes.
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//
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// If either runtime has an issue, please create an Issue and I will address.
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//
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// Extensibility
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//
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// For version 1.x, you are not restricted in having full control over your feeds.
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// You may choose to skip the API methods and instead use the structs directly. The
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// fields have been grouped by RSS 2.0 and iTunes fields with iTunes specific fields
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// all prefixed with the letter `I`.
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//
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// However, do note that the 2.x version currently in progress will break this
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// extensibility and enforce API methods going forward. This is to ensure that the feed
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// can both be marshalled, and unmarshalled back and forth (current 1.x branch can only
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// be unmarshalled - hence the work for 2.x).
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//
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// Fuzzing Inputs
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//
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// `go-fuzz` has been added in 1.4.1, covering all exported API methods. They have been
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// ran extensively and no issues have come out of them yet (most tests were ran overnight,
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// over about 11 hours with zero crashes).
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//
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// If you wish to help fuzz the inputs, with Go 1.13 or later you can run `go-fuzz` on any
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// of the inputs.
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//
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// go get -u github.com/dvyukov/go-fuzz/go-fuzz
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// go get -u github.com/dvyukov/go-fuzz/go-fuzz-build
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// go get -u github.com/eduncan911/podcast
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// cd $GOPATH/src/github.com/eduncan911/podcast
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// go-fuzz-build
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// go-fuzz -func FuzzPodcastAddItem
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//
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// To obtain a list of available funcs to pass, just run `go-fuzz` without any parameters:
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//
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// $ go-fuzz
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// 2020/02/13 07:27:32 -func flag not provided, but multiple fuzz functions available:
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// FuzzItemAddDuration, FuzzItemAddEnclosure, FuzzItemAddImage, FuzzItemAddPubDate,
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// FuzzItemAddSummary, FuzzPodcastAddAtomLink, FuzzPodcastAddAuthor, FuzzPodcastAddCategory,
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// FuzzPodcastAddImage, FuzzPodcastAddItem, FuzzPodcastAddLastBuildDate, FuzzPodcastAddPubDate,
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// FuzzPodcastAddSubTitle, FuzzPodcastAddSummary, FuzzPodcastBytes, FuzzPodcastEncode,
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// FuzzPodcastNew
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//
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// If you do find an issue, please raise an issue immediately and I will quickly address.
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//
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// Roadmap
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//
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// The 1.x branch is now mostly in maintenance mode, open to PRs. This means no
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// more planned features on the 1.x feature branch is expected. With the success of 6
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// iTunes-accepted podcasts I have published with this library, and with the feedback from
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// the community, the 1.x releases are now considered stable.
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//
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// The 2.x branch's primary focus is to allow for bi-direction marshalling both ways.
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// Currently, the 1.x branch only allows unmarshalling to a serial feed. An attempt to marshall
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// a serialized feed back into a Podcast form will error or not work correctly. Note that while
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// the 2.x branch is targeted to remain backwards compatible, it is true if using the public
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// API funcs to set parameters only. Several of the underlying public fields are being removed
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// in order to accommodate the marshalling of serialized data. Therefore, a version 2.x is denoted
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// for this release.
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//
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// Versioning
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//
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// We use SemVer versioning schema. You can rest assured that pulling 1.x branches will
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// remain backwards compatible now and into the future.
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//
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// However, the new 2.x branch, while keeping the same API, is expected break those that
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// bypass the API methods and use the underlying public properties instead.
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//
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// Release Notes
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//
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// v1.4.2
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// * Slim down Go Modules for consumers (#32)
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//
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// v1.4.1
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// * Implement fuzz logic testing of exported funcs (#31)
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// * Upgrade CICD Pipeline Tooling (#31)
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// * Update documentation for 1.x and 2.3 (#31)
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// * Allow godoc2ghmd to run without network (#31)
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//
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// v1.4.0
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// * Add Go Modules, Update vendor folder (#26, #25)
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// * Add C.I. GitHub Actions (#25)
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// * Add additional error checks found by linters (#25)
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// * Go Fmt enclosure_test.go (#25)
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//
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// v1.3.2
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// * Correct count len of UTF8 strings (#9)
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// * Implement duration parser (#8)
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// * Fix Github and GoDocs Markdown (#14)
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// * Move podcast.go Private Methods to Respected Files (#12)
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// * Allow providing GUID on Podcast (#15)
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//
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// v1.3.1
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// * increased itunes compliance after feedback from Apple:
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// - specified what categories should be set with AddCategory().
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// - enforced title and link as part of Image.
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// * added Podcast.AddAtomLink() for more broad compliance to readers.
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//
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// v1.3.0
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// * fixes Item.Duration being set incorrectly.
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// * changed Item.AddEnclosure() parameter definition (Bytes not Seconds!).
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// * added Item.AddDuration formatting and override.
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// * added more documentation surrounding Item.Enclosure{}
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//
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// v1.2.1
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// * added Podcast.AddSubTitle() and truncating to 64 chars.
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// * added a number of Guards to protect against empty fields.
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//
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// v1.2.0
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// * added Podcast.AddPubDate() and Podcast.AddLastBuildDate() overrides.
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// * added Item.AddImage() to mask some cumbersome addition of IImage.
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// * added Item.AddPubDate to simply datetime setters.
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// * added more examples (mostly around Item struct).
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// * tweaked some documentation.
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//
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// v1.1.0
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// * Enabling CDATA in ISummary fields for Podcast and Channel.
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//
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// v1.0.0
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// * Initial release.
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// * Full documentation, full examples and complete code coverage.
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//
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// References
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//
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// RSS 2.0: https://cyber.harvard.edu/rss/rss.html
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//
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// Podcasts: https://help.apple.com/itc/podcasts_connect/#/itca5b22233
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//
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package podcast
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