135 lines
2.7 KiB
Go
135 lines
2.7 KiB
Go
package main
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import (
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"crypto/rand"
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"encoding/base64"
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"errors"
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"fmt"
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"net/http"
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"time"
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"unicode"
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"github.com/gorilla/context"
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"github.com/lib/pq"
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)
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var (
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ErrMustProvideOptions = errors.New("Must provide necessary options")
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ErrMustProvideOptionsJSON = newJSONError(ErrMustProvideOptions, http.StatusBadRequest)
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StatusUnprocessableEntity = 422
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MustProvideAValue = "Must provide a value"
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)
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// ListOptions specifies general pagination options for fetching a list of results
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type ListOptions struct {
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PerPage int64 `url:",omitempty" json:",omitempty"`
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Page int64 `url:",omitempty" json:",omitempty"`
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Ids []int64 `url:",omitempty" json:",omitempty" schema:"ids[]"`
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Genus string
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}
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func (o ListOptions) PageOrDefault() int64 {
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if o.Page <= 0 {
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return 1
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}
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return o.Page
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}
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func (o ListOptions) Offset() int64 {
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return (o.PageOrDefault() - 1) * o.PerPageOrDefault()
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}
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func (o ListOptions) PerPageOrDefault() int64 {
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if o.PerPage <= 0 {
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return DefaultPerPage
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}
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return o.PerPage
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}
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// DefaultPerPage is the default number of items to return in a paginated result set
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const DefaultPerPage = 10
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func valsIn(attribute string, values []int64, vals *[]interface{}, counter *int64) string {
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if len(values) == 1 {
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return fmt.Sprintf("%v=%v", attribute, values[0])
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}
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m := fmt.Sprintf("%v IN (", attribute)
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for _, id := range values {
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m = m + fmt.Sprintf("$%v,", *counter)
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*vals = append(*vals, id)
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*counter++
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}
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m = m[:len(m)-1] + ")"
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return m
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}
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func currentTime() NullTime {
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return NullTime{
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pq.NullTime{
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Time: time.Now(),
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Valid: true,
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},
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}
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}
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// http://stackoverflow.com/a/25840157/313548
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func verifyPassword(s string) (sevenOrMore, number, upper bool) {
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letters := 0
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for _, s := range s {
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switch {
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case unicode.IsNumber(s):
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number = true
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case unicode.IsUpper(s):
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upper = true
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letters++
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case unicode.IsLetter(s) || s == ' ':
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letters++
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default:
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// returns false, false, false, false
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}
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}
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sevenOrMore = letters >= 7
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return
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}
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func generateNonce() (string, error) {
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b := make([]byte, 32)
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_, err := rand.Read(b)
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if err != nil {
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return "", err
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}
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return base64.URLEncoding.EncodeToString(b), nil
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}
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func getClaims(r *http.Request) Claims {
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con := context.Get(r, "claims")
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var claims Claims
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if con != nil {
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claims = con.(Claims)
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}
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origin := r.Header.Get("Origin")
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if origin != "" {
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claims.Ref = origin
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}
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return claims
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}
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func canAdd(claims Claims) bool {
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return claims.Role == "A" || claims.Role == "W"
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}
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func canEdit(claims Claims, id_list map[int64]int64) []int64 {
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id := claims.Sub
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role := claims.Role
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out := make([]int64, 0)
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for k, v := range id_list {
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if (role == "W" && id == v) || role == "A" {
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out = append(out, k)
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}
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}
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return out
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}
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