311 lines
8.1 KiB
Go
311 lines
8.1 KiB
Go
package pages
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import (
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"fmt"
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"log"
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"github.com/carlmjohnson/requests"
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"github.com/gofiber/fiber/v2"
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"github.com/gomarkdown/markdown"
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"github.com/microcosm-cc/bluemonday"
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"codeberg.org/Odyssium/gothub/utils"
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"context"
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"regexp"
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"strings"
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)
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type User struct {
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Login string
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Name string
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Bio string
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AvatarUrl string
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Location string
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Following int64
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Followers int64
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Link string
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Company string
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Type string
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EwTwitter string
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Readme string
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}
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type Ratelimit struct {
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Remaining int64
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Limit int64
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}
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// HandleUser handles the user page.
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func HandleUser(c *fiber.Ctx) error {
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user := utils.GetRequest("https://api.github.com/users/" + c.Params("user"))
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if user.Get("message").String() == "Not Found" {
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return c.Status(404).Render("error", fiber.Map{
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"error": "User " + c.Params("user") + " not found",
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})
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}
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if strings.Contains(user.Get("message").String(), "rate limit") { // dont wanna get the status code so i'll just do this instead 👍
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ratelimitJSON := utils.GetRequest("https://api.github.com/rate_limit")
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fmt.Println(ratelimitJSON)
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var ratelimitArray []Ratelimit
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ratelimitArray = append(ratelimitArray, Ratelimit{
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Remaining: ratelimitJSON.Get("resources.core.remaining").Int(),
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Limit: ratelimitJSON.Get("resources.core.limit").Int(),
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})
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fmt.Println(ratelimitArray)
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return c.Render("ratelimit", fiber.Map{
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"Title": "GitHub API /users endpoint rate limit exceeded",
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"ratelimit": ratelimitArray,
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})
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} else {
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var userArray []User
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var readmee string
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err := requests.
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URL("https://raw.githubusercontent.com/" + c.Params("user") + "/" + c.Params("user") + "/master/README.md").
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ToString(&readmee).
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Fetch(context.Background())
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if err != nil {
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readmee = ""
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log.Println(err)
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}
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mightBeUnsafe := markdown.ToHTML([]byte(readmee), nil, nil)
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// Trust Nobody
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readmeOutput := UGCPolicy().SanitizeBytes(mightBeUnsafe)
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var link string
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if user.Get("blog").String() == "" {
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link = ""
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} else {
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link = user.Get("blog").String()
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if strings.HasPrefix(link, "https://") {
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link = strings.TrimPrefix(link, "https://")
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} else if strings.HasPrefix(link, "http://") {
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link = strings.TrimPrefix(link, "http://")
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} else {
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log.Println("Has no prefix")
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}
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}
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userArray = append(userArray, User{
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Login: user.Get("login").String(),
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Name: user.Get("name").String(),
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Bio: user.Get("bio").String(),
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AvatarUrl: "/avatar/" + user.Get("id").String(),
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Location: user.Get("location").String(),
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Following: user.Get("following").Int(),
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Followers: user.Get("followers").Int(),
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Link: link,
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Company: user.Get("company").String(),
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Type: user.Get("type").String(),
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EwTwitter: user.Get("twitter_username").String(),
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Readme: string(readmeOutput),
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})
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fmt.Println(userArray)
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return c.Render("user", fiber.Map{
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"user": userArray,
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})
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}
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}
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// copied from bluemonday's GitHub repostiory, with some adaptations
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func UGCPolicy() *bluemonday.Policy {
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p := bluemonday.NewPolicy()
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///////////////////////
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// Global attributes //
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///////////////////////
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// "class" is not permitted as we are not allowing users to style their own
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// content
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p.AllowStandardAttributes()
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//////////////////////////////
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// Global URL format policy //
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//////////////////////////////
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p.AllowStandardURLs()
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////////////////////////////////
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// Declarations and structure //
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////////////////////////////////
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// "xml" "xslt" "DOCTYPE" "html" "head" are not permitted as we are
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// expecting user generated content to be a fragment of HTML and not a full
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// document.
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//////////////////////////
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// Sectioning root tags //
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//////////////////////////
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// "article" and "aside" are permitted and takes no attributes
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p.AllowElements("article", "aside")
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// "body" is not permitted as we are expecting user generated content to be a fragment
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// of HTML and not a full document.
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// "details" is permitted, including the "open" attribute which can either
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// be blank or the value "open".
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p.AllowAttrs(
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"open",
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).Matching(regexp.MustCompile(`(?i)^(|open)$`)).OnElements("details")
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// "fieldset" is not permitted as we are not allowing forms to be created.
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// "figure" is permitted and takes no attributes
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p.AllowElements("figure")
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// "nav" is not permitted as it is assumed that the site (and not the user)
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// has defined navigation elements
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// "section" is permitted and takes no attributes
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p.AllowElements("section")
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// "summary" is permitted and takes no attributes
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p.AllowElements("summary")
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//////////////////////////
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// Headings and footers //
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//////////////////////////
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// "footer" is not permitted as we expect user content to be a fragment and
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// not structural to this extent
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// "h1" through "h6" are permitted and take no attributes
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p.AllowElements("h1", "h2", "h3", "h4", "h5", "h6")
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// "header" is not permitted as we expect user content to be a fragment and
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// not structural to this extent
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// "hgroup" is permitted and takes no attributes
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p.AllowElements("hgroup")
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/////////////////////////////////////
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// Content grouping and separating //
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/////////////////////////////////////
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// "blockquote" is permitted, including the "cite" attribute which must be
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// a standard URL.
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p.AllowAttrs("cite").OnElements("blockquote")
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// "br" "div" "hr" "p" "span" "wbr" are permitted and take no attributes
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p.AllowElements("br", "div", "hr", "p", "span", "wbr")
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///////////
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// Links //
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///////////
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// "a" is permitted
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p.AllowAttrs("href").OnElements("a")
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// "area" is permitted along with the attributes that map image maps work
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p.AllowAttrs("name").Matching(
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regexp.MustCompile(`^([\p{L}\p{N}_-]+)$`),
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).OnElements("map")
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p.AllowAttrs("alt").Matching(bluemonday.Paragraph).OnElements("area")
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p.AllowAttrs("coords").Matching(
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regexp.MustCompile(`^([0-9]+,)+[0-9]+$`),
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).OnElements("area")
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p.AllowAttrs("href").OnElements("area")
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p.AllowAttrs("rel").Matching(bluemonday.SpaceSeparatedTokens).OnElements("area")
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p.AllowAttrs("shape").Matching(
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regexp.MustCompile(`(?i)^(default|circle|rect|poly)$`),
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).OnElements("area")
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p.AllowAttrs("usemap").Matching(
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regexp.MustCompile(`(?i)^#[\p{L}\p{N}_-]+$`),
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).OnElements("img")
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// "link" is not permitted
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/////////////////////
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// Phrase elements //
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/////////////////////
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// The following are all inline phrasing elements
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p.AllowElements("abbr", "acronym", "cite", "code", "dfn", "em",
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"figcaption", "mark", "s", "samp", "strong", "sub", "sup", "var")
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// "q" is permitted and "cite" is a URL and handled by URL policies
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p.AllowAttrs("cite").OnElements("q")
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// "time" is permitted
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p.AllowAttrs("datetime").Matching(bluemonday.ISO8601).OnElements("time")
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////////////////////
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// Style elements //
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////////////////////
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// block and inline elements that impart no semantic meaning but style the
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// document
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p.AllowElements("b", "i", "pre", "small", "strike", "tt", "u")
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// "style" is not permitted as we are not yet sanitising CSS and it is an
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// XSS attack vector
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//////////////////////
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// HTML5 Formatting //
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//////////////////////
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// "bdi" "bdo" are permitted
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p.AllowAttrs("dir").Matching(bluemonday.Direction).OnElements("bdi", "bdo")
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// "rp" "rt" "ruby" are permitted
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p.AllowElements("rp", "rt", "ruby")
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///////////////////////////
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// HTML5 Change tracking //
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///////////////////////////
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// "del" "ins" are permitted
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p.AllowAttrs("cite").Matching(bluemonday.Paragraph).OnElements("del", "ins")
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p.AllowAttrs("datetime").Matching(bluemonday.ISO8601).OnElements("del", "ins")
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///////////
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// Lists //
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///////////
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p.AllowLists()
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////////////
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// Tables //
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////////////
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p.AllowTables()
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///////////
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// Forms //
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///////////
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// By and large, forms are not permitted. However there are some form
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// elements that can be used to present data, and we do permit those
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//
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// "button" "fieldset" "input" "keygen" "label" "output" "select" "datalist"
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// "textarea" "optgroup" "option" are all not permitted
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// "meter" is permitted
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p.AllowAttrs(
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"value",
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"min",
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"max",
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"low",
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"high",
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"optimum",
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).Matching(bluemonday.Number).OnElements("meter")
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// "progress" is permitted
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p.AllowAttrs("value", "max").Matching(bluemonday.Number).OnElements("progress")
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return p
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}
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