{"action":"created","issue":{"url":"https://api.github.com/repos/TAXIIProject/TAXII-Specifications/issues/55","labels_url":"https://api.github.com/repos/TAXIIProject/TAXII-Specifications/issues/55/labels{/name}","comments_url":"https://api.github.com/repos/TAXIIProject/TAXII-Specifications/issues/55/comments","events_url":"https://api.github.com/repos/TAXIIProject/TAXII-Specifications/issues/55/events","html_url":"https://github.com/TAXIIProject/TAXII-Specifications/issues/55","id":64278767,"number":55,"title":"Proposal: Remove Content Binding IDs for MIME Types","user":{"login":"MarkDavidson","id":2951827,"avatar_url":"https://avatars.githubusercontent.com/u/2951827?v=3","gravatar_id":"","url":"https://api.github.com/users/MarkDavidson","html_url":"https://github.com/MarkDavidson","followers_url":"https://api.github.com/users/MarkDavidson/followers","following_url":"https://api.github.com/users/MarkDavidson/following{/other_user}","gists_url":"https://api.github.com/users/MarkDavidson/gists{/gist_id}","starred_url":"https://api.github.com/users/MarkDavidson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MarkDavidson/subscriptions","organizations_url":"https://api.github.com/users/MarkDavidson/orgs","repos_url":"https://api.github.com/users/MarkDavidson/repos","events_url":"https://api.github.com/users/MarkDavidson/events{/privacy}","received_events_url":"https://api.github.com/users/MarkDavidson/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":11,"created_at":"2015-03-25T14:10:35Z","updated_at":"2015-05-14T11:51:08Z","closed_at":null,"body":"Currently, Content Binding IDs are used to identify content types in a TAXII Message (e.g., content of STIX 1.1.1). However, experience has shown that MIME types are increasingly used as Content Binding IDs (e.g., S/MIME) and that all uses of Content Binding IDs that are not MIME Types (e.g., STIX versions) could be implemented as a MIME Type. Additionally, the Content Binding ID concept is redundant with, and does not add any value to, the MIME Type concept. This change proposes that Content Binding IDs are removed from the TAXII vocabulary in favor of MIME Types so that TAXII does not ‘reinvent the wheel’.\r\n\r\nSince MIME object processing is already prevalent in the internet, the hope is that TAXII's use of MIME objects will allow for more generalized processing. "},"comment":{"url":"https://api.github.com/repos/TAXIIProject/TAXII-Specifications/issues/comments/102011011","html_url":"https://github.com/TAXIIProject/TAXII-Specifications/issues/55#issuecomment-102011011","issue_url":"https://api.github.com/repos/TAXIIProject/TAXII-Specifications/issues/55","id":102011011,"user":{"login":"MarkDavidson","id":2951827,"avatar_url":"https://avatars.githubusercontent.com/u/2951827?v=3","gravatar_id":"","url":"https://api.github.com/users/MarkDavidson","html_url":"https://github.com/MarkDavidson","followers_url":"https://api.github.com/users/MarkDavidson/followers","following_url":"https://api.github.com/users/MarkDavidson/following{/other_user}","gists_url":"https://api.github.com/users/MarkDavidson/gists{/gist_id}","starred_url":"https://api.github.com/users/MarkDavidson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MarkDavidson/subscriptions","organizations_url":"https://api.github.com/users/MarkDavidson/orgs","repos_url":"https://api.github.com/users/MarkDavidson/repos","events_url":"https://api.github.com/users/MarkDavidson/events{/privacy}","received_events_url":"https://api.github.com/users/MarkDavidson/received_events","type":"User","site_admin":false},"created_at":"2015-05-14T11:51:08Z","updated_at":"2015-05-14T11:51:08Z","body":"All,\r\n\r\nMy apologies for any confusion from the original wording. The proposal is to change the allowable values of the `<Content_Binding>` field, not to remove the field. For reference, the `Content_Binding` field indicates the formats that are allowed in the `Poll_Response`'s `Content_Blocks`\r\n\r\nFor instance, right now a Poll Request might contain the following:\r\n```xml\r\n<Poll_Parameters>\r\n   <Content_Binding binding_id=\"urn:stix.mitre.org:xml:1.1.1\"/>\r\n</Poll_Parameters>\r\n```\r\n\r\nThe `binding_id` field currently contains a Content Binding ID. The proposal is to modify the allowable values to be MIME Type identifier (e.g., `text/plain`) and consequently `Content Blocks` must be MIME objects.\r\n\r\nI will update the original post with some clarifying information.\r\n\r\nI second @terrymacdonald's preference for moving TAXII closer to vanilla HTTP."}}