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requests.go
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requests.go
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package services
import (
"fmt"
"strings"
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
)
// ListOptsBuilder allows extensions to add additional parameters to the
// List request.
type ListOptsBuilder interface {
ToCDNServiceListQuery() (string, error)
}
// ListOpts allows the filtering and sorting of paginated collections through
// the API. Marker and Limit are used for pagination.
type ListOpts struct {
Marker string `q:"marker"`
Limit int `q:"limit"`
}
// ToCDNServiceListQuery formats a ListOpts into a query string.
func (opts ListOpts) ToCDNServiceListQuery() (string, error) {
q, err := gophercloud.BuildQueryString(opts)
if err != nil {
return "", err
}
return q.String(), nil
}
// List returns a Pager which allows you to iterate over a collection of
// CDN services. It accepts a ListOpts struct, which allows for pagination via
// marker and limit.
func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
url := listURL(c)
if opts != nil {
query, err := opts.ToCDNServiceListQuery()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
}
createPage := func(r pagination.PageResult) pagination.Page {
p := ServicePage{pagination.MarkerPageBase{PageResult: r}}
p.MarkerPageBase.Owner = p
return p
}
pager := pagination.NewPager(c, url, createPage)
return pager
}
// CreateOptsBuilder is the interface options structs have to satisfy in order
// to be used in the main Create operation in this package. Since many
// extensions decorate or modify the common logic, it is useful for them to
// satisfy a basic interface in order for them to be used.
type CreateOptsBuilder interface {
ToCDNServiceCreateMap() (map[string]interface{}, error)
}
// CreateOpts is the common options struct used in this package's Create
// operation.
type CreateOpts struct {
// REQUIRED. Specifies the name of the service. The minimum length for name is
// 3. The maximum length is 256.
Name string
// REQUIRED. Specifies a list of domains used by users to access their website.
Domains []Domain
// REQUIRED. Specifies a list of origin domains or IP addresses where the
// original assets are stored.
Origins []Origin
// REQUIRED. Specifies the CDN provider flavor ID to use. For a list of
// flavors, see the operation to list the available flavors. The minimum
// length for flavor_id is 1. The maximum length is 256.
FlavorID string
// OPTIONAL. Specifies the TTL rules for the assets under this service. Supports wildcards for fine-grained control.
Caching []CacheRule
// OPTIONAL. Specifies the restrictions that define who can access assets (content from the CDN cache).
Restrictions []Restriction
}
// ToCDNServiceCreateMap casts a CreateOpts struct to a map.
func (opts CreateOpts) ToCDNServiceCreateMap() (map[string]interface{}, error) {
s := make(map[string]interface{})
if opts.Name == "" {
return nil, no("Name")
}
s["name"] = opts.Name
if opts.Domains == nil {
return nil, no("Domains")
}
for _, domain := range opts.Domains {
if domain.Domain == "" {
return nil, no("Domains[].Domain")
}
}
s["domains"] = opts.Domains
if opts.Origins == nil {
return nil, no("Origins")
}
for _, origin := range opts.Origins {
if origin.Origin == "" {
return nil, no("Origins[].Origin")
}
if origin.Rules == nil && len(opts.Origins) > 1 {
return nil, no("Origins[].Rules")
}
for _, rule := range origin.Rules {
if rule.Name == "" {
return nil, no("Origins[].Rules[].Name")
}
if rule.RequestURL == "" {
return nil, no("Origins[].Rules[].RequestURL")
}
}
}
s["origins"] = opts.Origins
if opts.FlavorID == "" {
return nil, no("FlavorID")
}
s["flavor_id"] = opts.FlavorID
if opts.Caching != nil {
for _, cache := range opts.Caching {
if cache.Name == "" {
return nil, no("Caching[].Name")
}
if cache.Rules != nil {
for _, rule := range cache.Rules {
if rule.Name == "" {
return nil, no("Caching[].Rules[].Name")
}
if rule.RequestURL == "" {
return nil, no("Caching[].Rules[].RequestURL")
}
}
}
}
s["caching"] = opts.Caching
}
if opts.Restrictions != nil {
for _, restriction := range opts.Restrictions {
if restriction.Name == "" {
return nil, no("Restrictions[].Name")
}
if restriction.Rules != nil {
for _, rule := range restriction.Rules {
if rule.Name == "" {
return nil, no("Restrictions[].Rules[].Name")
}
}
}
}
s["restrictions"] = opts.Restrictions
}
return s, nil
}
// Create accepts a CreateOpts struct and creates a new CDN service using the
// values provided.
func Create(c *gophercloud.ServiceClient, opts CreateOptsBuilder) CreateResult {
var res CreateResult
reqBody, err := opts.ToCDNServiceCreateMap()
if err != nil {
res.Err = err
return res
}
// Send request to API
resp, err := c.Request("POST", createURL(c), gophercloud.RequestOpts{
JSONBody: &reqBody,
OkCodes: []int{202},
})
res.Header = resp.Header
res.Err = err
return res
}
// Get retrieves a specific service based on its URL or its unique ID. For
// example, both "96737ae3-cfc1-4c72-be88-5d0e7cc9a3f0" and
// "https://global.cdn.api.rackspacecloud.com/v1.0/services/96737ae3-cfc1-4c72-be88-5d0e7cc9a3f0"
// are valid options for idOrURL.
func Get(c *gophercloud.ServiceClient, idOrURL string) GetResult {
var url string
if strings.Contains(idOrURL, "/") {
url = idOrURL
} else {
url = getURL(c, idOrURL)
}
var res GetResult
_, res.Err = c.Request("GET", url, gophercloud.RequestOpts{
JSONResponse: &res.Body,
OkCodes: []int{200},
})
return res
}
// Path is a JSON pointer location that indicates which service parameter is being added, replaced,
// or removed.
type Path struct {
baseElement string
}
func (p Path) renderRoot() string {
return "/" + p.baseElement
}
func (p Path) renderDash() string {
return fmt.Sprintf("/%s/-", p.baseElement)
}
func (p Path) renderIndex(index int64) string {
return fmt.Sprintf("/%s/%d", p.baseElement, index)
}
var (
// PathDomains indicates that an update operation is to be performed on a Domain.
PathDomains = Path{baseElement: "domains"}
// PathOrigins indicates that an update operation is to be performed on an Origin.
PathOrigins = Path{baseElement: "origins"}
// PathCaching indicates that an update operation is to be performed on a CacheRule.
PathCaching = Path{baseElement: "caching"}
)
type value interface {
toPatchValue() interface{}
appropriatePath() Path
renderRootOr(func(p Path) string) string
}
// Patch represents a single update to an existing Service. Multiple updates to a service can be
// submitted at the same time.
type Patch interface {
ToCDNServiceUpdateMap() map[string]interface{}
}
// Insertion is a Patch that requests the addition of a value (Domain, Origin, or CacheRule) to
// a Service at a fixed index. Use an Append instead to append the new value to the end of its
// collection. Pass it to the Update function as part of the Patch slice.
type Insertion struct {
Index int64
Value value
}
// ToCDNServiceUpdateMap converts an Insertion into a request body fragment suitable for the
// Update call.
func (i Insertion) ToCDNServiceUpdateMap() map[string]interface{} {
return map[string]interface{}{
"op": "add",
"path": i.Value.renderRootOr(func(p Path) string { return p.renderIndex(i.Index) }),
"value": i.Value.toPatchValue(),
}
}
// Append is a Patch that requests the addition of a value (Domain, Origin, or CacheRule) to a
// Service at the end of its respective collection. Use an Insertion instead to insert the value
// at a fixed index within the collection. Pass this to the Update function as part of its
// Patch slice.
type Append struct {
Value value
}
// ToCDNServiceUpdateMap converts an Append into a request body fragment suitable for the
// Update call.
func (a Append) ToCDNServiceUpdateMap() map[string]interface{} {
return map[string]interface{}{
"op": "add",
"path": a.Value.renderRootOr(func(p Path) string { return p.renderDash() }),
"value": a.Value.toPatchValue(),
}
}
// Replacement is a Patch that alters a specific service parameter (Domain, Origin, or CacheRule)
// in-place by index. Pass it to the Update function as part of the Patch slice.
type Replacement struct {
Value value
Index int64
}
// ToCDNServiceUpdateMap converts a Replacement into a request body fragment suitable for the
// Update call.
func (r Replacement) ToCDNServiceUpdateMap() map[string]interface{} {
return map[string]interface{}{
"op": "replace",
"path": r.Value.renderRootOr(func(p Path) string { return p.renderIndex(r.Index) }),
"value": r.Value.toPatchValue(),
}
}
// NameReplacement specifically updates the Service name. Pass it to the Update function as part
// of the Patch slice.
type NameReplacement struct {
NewName string
}
// ToCDNServiceUpdateMap converts a NameReplacement into a request body fragment suitable for the
// Update call.
func (r NameReplacement) ToCDNServiceUpdateMap() map[string]interface{} {
return map[string]interface{}{
"op": "replace",
"path": "/name",
"value": r.NewName,
}
}
// Removal is a Patch that requests the removal of a service parameter (Domain, Origin, or
// CacheRule) by index. Pass it to the Update function as part of the Patch slice.
type Removal struct {
Path Path
Index int64
All bool
}
// ToCDNServiceUpdateMap converts a Removal into a request body fragment suitable for the
// Update call.
func (r Removal) ToCDNServiceUpdateMap() map[string]interface{} {
result := map[string]interface{}{"op": "remove"}
if r.All {
result["path"] = r.Path.renderRoot()
} else {
result["path"] = r.Path.renderIndex(r.Index)
}
return result
}
type UpdateOpts []Patch
// Update accepts a slice of Patch operations (Insertion, Append, Replacement or Removal) and
// updates an existing CDN service using the values provided. idOrURL can be either the service's
// URL or its ID. For example, both "96737ae3-cfc1-4c72-be88-5d0e7cc9a3f0" and
// "https://global.cdn.api.rackspacecloud.com/v1.0/services/96737ae3-cfc1-4c72-be88-5d0e7cc9a3f0"
// are valid options for idOrURL.
func Update(c *gophercloud.ServiceClient, idOrURL string, opts UpdateOpts) UpdateResult {
var url string
if strings.Contains(idOrURL, "/") {
url = idOrURL
} else {
url = updateURL(c, idOrURL)
}
reqBody := make([]map[string]interface{}, len(opts))
for i, patch := range opts {
reqBody[i] = patch.ToCDNServiceUpdateMap()
}
resp, err := c.Request("PATCH", url, gophercloud.RequestOpts{
JSONBody: &reqBody,
OkCodes: []int{202},
})
var result UpdateResult
result.Header = resp.Header
result.Err = err
return result
}
// Delete accepts a service's ID or its URL and deletes the CDN service
// associated with it. For example, both "96737ae3-cfc1-4c72-be88-5d0e7cc9a3f0" and
// "https://global.cdn.api.rackspacecloud.com/v1.0/services/96737ae3-cfc1-4c72-be88-5d0e7cc9a3f0"
// are valid options for idOrURL.
func Delete(c *gophercloud.ServiceClient, idOrURL string) DeleteResult {
var url string
if strings.Contains(idOrURL, "/") {
url = idOrURL
} else {
url = deleteURL(c, idOrURL)
}
var res DeleteResult
_, res.Err = c.Request("DELETE", url, gophercloud.RequestOpts{
OkCodes: []int{202},
})
return res
}