OC.L10N.register( "dav", { "Calendar" : "Calendario", "Todos" : "Cose da fare", "Personal" : "Personale", "{actor} created calendar {calendar}" : "{actor} ha creato il calendario {calendar}", "You created calendar {calendar}" : "Hai creato il calendario {calendar}", "{actor} deleted calendar {calendar}" : "{actor} ha eliminato il calendario {calendar}", "You deleted calendar {calendar}" : "Hai eliminato il calendario {calendar}", "{actor} updated calendar {calendar}" : "{actor} ha aggiornato il calendario {calendar}", "You updated calendar {calendar}" : "Hai aggiornato il calendario {calendar}", "You shared calendar {calendar} as public link" : "Hai condiviso il calendario {calendar} come collegamento pubblico", "You removed public link for calendar {calendar}" : "Hai rimosso il collegamento pubblico per il calendario {calendar}", "{actor} shared calendar {calendar} with you" : "{actor} ha condiviso il calendario {calendar} con te", "You shared calendar {calendar} with {user}" : "Hai condiviso il calendario {calendar} con {user}", "{actor} shared calendar {calendar} with {user}" : "{actor} ha aggiornato il calendario {calendar} con {user}", "{actor} unshared calendar {calendar} from you" : "{actor} ha rimosso la condivisione del calendario {calendar} con te", "You unshared calendar {calendar} from {user}" : "Hai rimosso la condivisione del calendario {calendar} con {user}", "{actor} unshared calendar {calendar} from {user}" : "{actor} ha rimosso la condivisione del calendario {calendar} con {user}", "{actor} unshared calendar {calendar} from themselves" : "{actor} ha rimosso la condivisione del calendario {calendar} con se stesso", "You shared calendar {calendar} with group {group}" : "Hai condiviso il calendario {calendar} con il gruppo {group}", "{actor} shared calendar {calendar} with group {group}" : "{actor} ha condiviso il calendario {calendar} con il gruppo {group}", "You unshared calendar {calendar} from group {group}" : "Hai rimosso la condivisione del calendario {calendar} con il gruppo {group}", "{actor} unshared calendar {calendar} from group {group}" : "{actor} ha rimosso la condivisione del calendario {calendar} con il gruppo {group}", "{actor} created event {event} in calendar {calendar}" : "{actor} ha creato l'evento {event} nel calendario {calendar}", "You created event {event} in calendar {calendar}" : "Hai creato l'evento {event} nel calendario {calendar}", "{actor} deleted event {event} from calendar {calendar}" : "{actor} ha eliminato l'evento {event} dal calendario {calendar}", "You deleted event {event} from calendar {calendar}" : "Hai ha eliminato l'evento {event} dal calendario {calendar}", "{actor} updated event {event} in calendar {calendar}" : "{actor} ha aggiornato l'evento {event} nel calendario {calendar}", "You updated event {event} in calendar {calendar}" : "Hai aggiornato l'evento {event} nel calendario {calendar}", "{actor} created todo {todo} in list {calendar}" : "{actor} ha creato la cosa da fare {todo} nell'elenco {calendar}", "You created todo {todo} in list {calendar}" : "Hai creato la cosa da fare {todo} nell'elenco {calendar}", "{actor} deleted todo {todo} from list {calendar}" : "{actor} ha eliminato la cosa da fare {todo} dall'elenco {calendar}", "You deleted todo {todo} from list {calendar}" : "Hai eliminato la cosa da fare {todo} dall'elenco {calendar}", "{actor} updated todo {todo} in list {calendar}" : "{actor} ha aggiornato la cosa da fare {todo} nell'elenco {calendar}", "You updated todo {todo} in list {calendar}" : "Hai aggiornato la cosa da fare {todo} nell'elenco {calendar}", "{actor} solved todo {todo} in list {calendar}" : "{actor} ha risolto la cosa da fare {todo} nell'elenco {calendar}", "You solved todo {todo} in list {calendar}" : "Hai risolto la cosa da fare {todo} nell'elenco {calendar}", "{actor} reopened todo {todo} in list {calendar}" : "{actor} ha riaperto la cosa da fare {todo} nell'elenco {calendar}", "You reopened todo {todo} in list {calendar}" : "Hai riaperto la cosa da fare {todo} nell'elenco {calendar}", "A calendar was modified" : "Un calendario è stato modificato", "A calendar event was modified" : "Un evento del calendario è stato modificato", "A calendar todo was modified" : "Una cosa da fare del calendario è stata modificata", "Contact birthdays" : "Date di nascita dei contatti", "%1$s via %2$s" : "%1$s tramite %2$s", "Invitation canceled" : "Invito annullato", "Hello %s," : "Ciao %s,", "The meeting »%1$s« with %2$s was canceled." : "L'incontro «%1$s» con %2$s è stato annullato.", "Invitation updated" : "Invito aggiornato", "The meeting »%1$s« with %2$s was updated." : "L'incontro «%1$s» con %2$s è stato aggiornato.", "%1$s invited you to »%2$s«" : "%1$s ti ha invitato a «%2$s»", "When:" : "Quando:", "Where:" : "Dove:", "Description:" : "Descrizione:", "Link:" : "Collegamento:", "Accept" : "Accetta", "Decline" : "Rifiuta", "More options …" : "Altre opzioni...", "More options at %s" : "Altre opzioni alle %s", "Contacts" : "Contatti", "WebDAV" : "WebDAV", "WebDAV endpoint" : "Terminatore WebDAV", "Technical details" : "Dettagli tecnici", "Remote Address: %s" : "Indirizzo remoto: %s", "Request ID: %s" : "ID richiesta: %s", "There was an error updating your attendance status." : "Si è verificato un errore durante l'aggiornamento dello stato della tua partecipazione.", "Please contact the organizer directly." : "Contatta direttamente l'amministratore.", "Are you accepting the invitation?" : "Accetti l'invito?", "Tentative" : "Provvisorio", "Save" : "Salva", "Your attendance was updated successfully." : "La tua partecipazione è stata aggiornata correttamente.", "Calendar server" : "Server di calendari", "Send invitations to attendees" : "Invia gli inviti ai partecipanti", "Please make sure to properly set up the email settings above." : "Assicurati di configurare correttamente le impostazioni di posta sopra.", "Automatically generate a birthday calendar" : "Genera automaticamente un calendario dei compleanni", "Birthday calendars will be generated by a background job." : "Il calendario dei compleanni sarà generato con un'operazione in background.", "Hence they will not be available immediately after enabling but will show up after some time." : "Per cui non saranno disponibili immediatamente dopo l'abilitazione, ma saranno mostrati dopo qualche istante.", "%s via %s" : "%s tramite %s", "The meeting »%s« with %s was canceled." : "L'incontro «%s» con %s è stato annullato.", "The meeting »%s« with %s was updated." : "L'incontro «%s» con %s è stato aggiornato.", "%s invited you to »%s«" : "%s ti ha invitato a «%s»", "CalDAV server" : "Server CalDAV" }, "nplurals=2; plural=(n != 1);"); ef='#n84'>84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 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// OAuth 1.0 consumer implementation.
// See http://www.oauth.net and RFC 5849
//
// There are typically three parties involved in an OAuth exchange:
//      (1) The "Service Provider" (e.g. Google, Twitter, NetFlix) who operates the
//          service where the data resides.
//      (2) The "End User" who owns that data, and wants to grant access to a third-party.
//      (3) That third-party who wants access to the data (after first being authorized by
//          the user). This third-party is referred to as the "Consumer" in OAuth
//          terminology.
//
// This library is designed to help implement the third-party consumer by handling the
// low-level authentication tasks, and allowing for authenticated requests to the
// service provider on behalf of the user.
//
// Caveats:
//      - Currently only supports HMAC and RSA signatures.
//      - Currently only supports SHA1 and SHA256 hashes.
//      - Currently only supports OAuth 1.0
//
// Overview of how to use this library:
//      (1) First create a new Consumer instance with the NewConsumer function
//      (2) Get a RequestToken, and "authorization url" from GetRequestTokenAndUrl()
//      (3) Save the RequestToken, you will need it again in step 6.
//      (4) Redirect the user to the "authorization url" from step 2, where they will
//          authorize your access to the service provider.
//      (5) Wait. You will be called back on the CallbackUrl that you provide, and you
//          will recieve a "verification code".
//      (6) Call AuthorizeToken() with the RequestToken from step 2 and the
//          "verification code" from step 5.
//      (7) You will get back an AccessToken.  Save this for as long as you need access
//          to the user's data, and treat it like a password; it is a secret.
//      (8) You can now throw away the RequestToken from step 2, it is no longer
//          necessary.
//      (9) Call "MakeHttpClient" using the AccessToken from step 7 to get an
//          HTTP client which can access protected resources.
package oauth

import (
	"bytes"
	"crypto"
	"crypto/hmac"
	cryptoRand "crypto/rand"
	"crypto/rsa"
	"encoding/base64"
	"errors"
	"fmt"
	"io"
	"io/ioutil"
	"math/rand"
	"mime/multipart"
	"net/http"
	"net/url"
	"sort"
	"strconv"
	"strings"
	"sync"
	"time"
)

const (
	OAUTH_VERSION         = "1.0"
	SIGNATURE_METHOD_HMAC = "HMAC-"
	SIGNATURE_METHOD_RSA  = "RSA-"

	HTTP_AUTH_HEADER       = "Authorization"
	OAUTH_HEADER           = "OAuth "
	BODY_HASH_PARAM        = "oauth_body_hash"
	CALLBACK_PARAM         = "oauth_callback"
	CONSUMER_KEY_PARAM     = "oauth_consumer_key"
	NONCE_PARAM            = "oauth_nonce"
	SESSION_HANDLE_PARAM   = "oauth_session_handle"
	SIGNATURE_METHOD_PARAM = "oauth_signature_method"
	SIGNATURE_PARAM        = "oauth_signature"
	TIMESTAMP_PARAM        = "oauth_timestamp"
	TOKEN_PARAM            = "oauth_token"
	TOKEN_SECRET_PARAM     = "oauth_token_secret"
	VERIFIER_PARAM         = "oauth_verifier"
	VERSION_PARAM          = "oauth_version"
)

var HASH_METHOD_MAP = map[crypto.Hash]string{
	crypto.SHA1:   "SHA1",
	crypto.SHA256: "SHA256",
}

// TODO(mrjones) Do we definitely want separate "Request" and "Access" token classes?
// They're identical structurally, but used for different purposes.
type RequestToken struct {
	Token  string
	Secret string
}

type AccessToken struct {
	Token          string
	Secret         string
	AdditionalData map[string]string
}

type DataLocation int

const (
	LOC_BODY DataLocation = iota + 1
	LOC_URL
	LOC_MULTIPART
	LOC_JSON
	LOC_XML
)

// Information about how to contact the service provider (see #1 above).
// You usually find all of these URLs by reading the documentation for the service
// that you're trying to connect to.
// Some common examples are:
//      (1) Google, standard APIs:
//          http://code.google.com/apis/accounts/docs/OAuth_ref.html
//          - RequestTokenUrl:   https://www.google.com/accounts/OAuthGetRequestToken
//          - AuthorizeTokenUrl: https://www.google.com/accounts/OAuthAuthorizeToken
//          - AccessTokenUrl:    https://www.google.com/accounts/OAuthGetAccessToken
//          Note: Some Google APIs (for example, Google Latitude) use different values for
//          one or more of those URLs.
//      (2) Twitter API:
//          http://dev.twitter.com/pages/auth
//          - RequestTokenUrl:   http://api.twitter.com/oauth/request_token
//          - AuthorizeTokenUrl: https://api.twitter.com/oauth/authorize
//          - AccessTokenUrl:    https://api.twitter.com/oauth/access_token
//      (3) NetFlix API:
//          http://developer.netflix.com/docs/Security
//          - RequestTokenUrl:   http://api.netflix.com/oauth/request_token
//          - AuthroizeTokenUrl: https://api-user.netflix.com/oauth/login
//          - AccessTokenUrl:    http://api.netflix.com/oauth/access_token
// Set HttpMethod if the service provider requires a different HTTP method
// to be used for OAuth token requests
type ServiceProvider struct {
	RequestTokenUrl   string
	AuthorizeTokenUrl string
	AccessTokenUrl    string
	HttpMethod        string
	BodyHash          bool
	IgnoreTimestamp   bool

	// Enables non spec-compliant behavior:
	// Allow parameters to be passed in the query string rather
	// than the body.
	// See https://github.com/mrjones/oauth/pull/63
	SignQueryParams bool
}

func (sp *ServiceProvider) httpMethod() string {
	if sp.HttpMethod != "" {
		return sp.HttpMethod
	}

	return "GET"
}

// lockedNonceGenerator wraps a non-reentrant random number generator with a
// lock
type lockedNonceGenerator struct {
	nonceGenerator nonceGenerator
	lock           sync.Mutex
}

func newLockedNonceGenerator(c clock) *lockedNonceGenerator {
	return &lockedNonceGenerator{
		nonceGenerator: rand.New(rand.NewSource(c.Nanos())),
	}
}

func (n *lockedNonceGenerator) Int63() int64 {
	n.lock.Lock()
	r := n.nonceGenerator.Int63()
	n.lock.Unlock()
	return r
}

// Consumers are stateless, you can call the various methods (GetRequestTokenAndUrl,
// AuthorizeToken, and Get) on various different instances of Consumers *as long as
// they were set up in the same way.* It is up to you, as the caller to persist the
// necessary state (RequestTokens and AccessTokens).
type Consumer struct {
	// Some ServiceProviders require extra parameters to be passed for various reasons.
	// For example Google APIs require you to set a scope= parameter to specify how much
	// access is being granted.  The proper values for scope= depend on the service:
	// For more, see: http://code.google.com/apis/accounts/docs/OAuth.html#prepScope
	AdditionalParams map[string]string

	// The rest of this class is configured via the NewConsumer function.
	consumerKey     string
	serviceProvider ServiceProvider

	// Some APIs (e.g. Netflix) aren't quite standard OAuth, and require passing
	// additional parameters when authorizing the request token. For most APIs
	// this field can be ignored.  For Netflix, do something like:
	// 	consumer.AdditionalAuthorizationUrlParams = map[string]string{
	// 		"application_name":   "YourAppName",
	// 		"oauth_consumer_key": "YourConsumerKey",
	// 	}
	AdditionalAuthorizationUrlParams map[string]string

	debug bool

	// Defaults to http.Client{}, can be overridden (e.g. for testing) as necessary
	HttpClient HttpClient

	// Some APIs (e.g. Intuit/Quickbooks) require sending additional headers along with
	// requests. (like "Accept" to specify the response type as XML or JSON) Note that this
	// will only *add* headers, not set existing ones.
	AdditionalHeaders map[string][]string

	// Private seams for mocking dependencies when testing
	clock clock
	// Seeded generators are not reentrant
	nonceGenerator nonceGenerator
	signer         signer
}

func newConsumer(consumerKey string, serviceProvider ServiceProvider, httpClient *http.Client) *Consumer {
	clock := &defaultClock{}
	if httpClient == nil {
		httpClient = &http.Client{}
	}
	return &Consumer{
		consumerKey:     consumerKey,
		serviceProvider: serviceProvider,
		clock:           clock,
		HttpClient:      httpClient,
		nonceGenerator:  newLockedNonceGenerator(clock),

		AdditionalParams:                 make(map[string]string),
		AdditionalAuthorizationUrlParams: make(map[string]string),
	}
}

// Creates a new Consumer instance, with a HMAC-SHA1 signer
//      - consumerKey and consumerSecret:
//        values you should obtain from the ServiceProvider when you register your
//        application.
//
//      - serviceProvider:
//        see the documentation for ServiceProvider for how to create this.
//
func NewConsumer(consumerKey string, consumerSecret string,
	serviceProvider ServiceProvider) *Consumer {
	consumer := newConsumer(consumerKey, serviceProvider, nil)

	consumer.signer = &HMACSigner{
		consumerSecret: consumerSecret,
		hashFunc:       crypto.SHA1,
	}

	return consumer
}

// Creates a new Consumer instance, with a HMAC-SHA1 signer
//      - consumerKey and consumerSecret:
//        values you should obtain from the ServiceProvider when you register your
//        application.
//
//      - serviceProvider:
//        see the documentation for ServiceProvider for how to create this.
//
//		- httpClient:
//		  Provides a custom implementation of the httpClient used under the hood
//		  to make the request.  This is especially useful if you want to use
//		  Google App Engine.
//
func NewCustomHttpClientConsumer(consumerKey string, consumerSecret string,
	serviceProvider ServiceProvider, httpClient *http.Client) *Consumer {
	consumer := newConsumer(consumerKey, serviceProvider, httpClient)

	consumer.signer = &HMACSigner{
		consumerSecret: consumerSecret,
		hashFunc:       crypto.SHA1,
	}

	return consumer
}

// Creates a new Consumer instance, with a HMAC signer
//      - consumerKey and consumerSecret:
//        values you should obtain from the ServiceProvider when you register your
//        application.
//
//      - hashFunc:
//        the crypto.Hash to use for signatures
//
//      - serviceProvider:
//        see the documentation for ServiceProvider for how to create this.
//
//      - httpClient:
//        Provides a custom implementation of the httpClient used under the hood
//        to make the request.  This is especially useful if you want to use
//        Google App Engine. Can be nil for default.
//
func NewCustomConsumer(consumerKey string, consumerSecret string,
	hashFunc crypto.Hash, serviceProvider ServiceProvider,
	httpClient *http.Client) *Consumer {
	consumer := newConsumer(consumerKey, serviceProvider, httpClient)

	consumer.signer = &HMACSigner{
		consumerSecret: consumerSecret,
		hashFunc:       hashFunc,
	}

	return consumer
}

// Creates a new Consumer instance, with a RSA-SHA1 signer
//      - consumerKey:
//        value you should obtain from the ServiceProvider when you register your
//        application.
//
//      - privateKey:
//        the private key to use for signatures
//
//      - serviceProvider:
//        see the documentation for ServiceProvider for how to create this.
//
func NewRSAConsumer(consumerKey string, privateKey *rsa.PrivateKey,
	serviceProvider ServiceProvider) *Consumer {
	consumer := newConsumer(consumerKey, serviceProvider, nil)

	consumer.signer = &RSASigner{
		privateKey: privateKey,
		hashFunc:   crypto.SHA1,
		rand:       cryptoRand.Reader,
	}

	return consumer
}

// Creates a new Consumer instance, with a RSA signer
//      - consumerKey:
//        value you should obtain from the ServiceProvider when you register your
//        application.
//
//      - privateKey:
//        the private key to use for signatures
//
//      - hashFunc:
//        the crypto.Hash to use for signatures
//
//      - serviceProvider:
//        see the documentation for ServiceProvider for how to create this.
//
//      - httpClient:
//        Provides a custom implementation of the httpClient used under the hood
//        to make the request.  This is especially useful if you want to use
//        Google App Engine. Can be nil for default.
//
func NewCustomRSAConsumer(consumerKey string, privateKey *rsa.PrivateKey,
	hashFunc crypto.Hash, serviceProvider ServiceProvider,
	httpClient *http.Client) *Consumer {
	consumer := newConsumer(consumerKey, serviceProvider, httpClient)

	consumer.signer = &RSASigner{
		privateKey: privateKey,
		hashFunc:   hashFunc,
		rand:       cryptoRand.Reader,
	}

	return consumer
}

// Kicks off the OAuth authorization process.
//      - callbackUrl:
//        Authorizing a token *requires* redirecting to the service provider. This is the
//        URL which the service provider will redirect the user back to after that
//        authorization is completed. The service provider will pass back a verification
//        code which is necessary to complete the rest of the process (in AuthorizeToken).
//        Notes on callbackUrl:
//          - Some (all?) service providers allow for setting "oob" (for out-of-band) as a
//            callback url.  If this is set the service provider will present the
//            verification code directly to the user, and you must provide a place for
//            them to copy-and-paste it into.
//          - Otherwise, the user will be redirected to callbackUrl in the browser, and
//            will append a "oauth_verifier=<verifier>" parameter.
//
// This function returns:
//      - rtoken:
//        A temporary RequestToken, used during the authorization process. You must save
//        this since it will be necessary later in the process when calling
//        AuthorizeToken().
//
//      - url:
//        A URL that you should redirect the user to in order that they may authorize you
//        to the service provider.
//
//      - err:
//        Set only if there was an error, nil otherwise.
func (c *Consumer) GetRequestTokenAndUrl(callbackUrl string) (rtoken *RequestToken, loginUrl string, err error) {
	return c.GetRequestTokenAndUrlWithParams(callbackUrl, c.AdditionalParams)
}

func (c *Consumer) GetRequestTokenAndUrlWithParams(callbackUrl string, additionalParams map[string]string) (rtoken *RequestToken, loginUrl string, err error) {
	params := c.baseParams(c.consumerKey, additionalParams)
	if callbackUrl != "" {
		params.Add(CALLBACK_PARAM, callbackUrl)
	}

	req := &request{
		method:      c.serviceProvider.httpMethod(),
		url:         c.serviceProvider.RequestTokenUrl,
		oauthParams: params,
	}
	if _, err := c.signRequest(req, ""); err != nil { // We don't have a token secret for the key yet
		return nil, "", err
	}

	resp, err := c.getBody(c.serviceProvider.httpMethod(), c.serviceProvider.RequestTokenUrl, params)
	if err != nil {
		return nil, "", errors.New("getBody: " + err.Error())
	}

	requestToken, err := parseRequestToken(*resp)
	if err != nil {
		return nil, "", errors.New("parseRequestToken: " + err.Error())
	}

	loginParams := make(url.Values)
	for k, v := range c.AdditionalAuthorizationUrlParams {
		loginParams.Set(k, v)
	}
	loginParams.Set(TOKEN_PARAM, requestToken.Token)

	loginUrl = c.serviceProvider.AuthorizeTokenUrl + "?" + loginParams.Encode()

	return requestToken, loginUrl, nil
}

// After the user has authorized you to the service provider, use this method to turn
// your temporary RequestToken into a permanent AccessToken. You must pass in two values:
//      - rtoken:
//        The RequestToken returned from GetRequestTokenAndUrl()
//
//      - verificationCode:
//        The string which passed back from the server, either as the oauth_verifier
//        query param appended to callbackUrl *OR* a string manually entered by the user
//        if callbackUrl is "oob"
//
// It will return:
//      - atoken:
//        A permanent AccessToken which can be used to access the user's data (until it is
//        revoked by the user or the service provider).
//
//      - err:
//        Set only if there was an error, nil otherwise.
func (c *Consumer) AuthorizeToken(rtoken *RequestToken, verificationCode string) (atoken *AccessToken, err error) {
	return c.AuthorizeTokenWithParams(rtoken, verificationCode, c.AdditionalParams)
}

func (c *Consumer) AuthorizeTokenWithParams(rtoken *RequestToken, verificationCode string, additionalParams map[string]string) (atoken *AccessToken, err error) {
	params := map[string]string{
		TOKEN_PARAM: rtoken.Token,
	}
	if verificationCode != "" {
		params[VERIFIER_PARAM] = verificationCode
	}
	return c.makeAccessTokenRequestWithParams(params, rtoken.Secret, additionalParams)
}

// Use the service provider to refresh the AccessToken for a given session.
// Note that this is only supported for service providers that manage an
// authorization session (e.g. Yahoo).
//
// Most providers do not return the SESSION_HANDLE_PARAM needed to refresh
// the token.
//
// See http://oauth.googlecode.com/svn/spec/ext/session/1.0/drafts/1/spec.html
// for more information.
//      - accessToken:
//        The AccessToken returned from AuthorizeToken()
//
// It will return:
//      - atoken:
//        An AccessToken which can be used to access the user's data (until it is
//        revoked by the user or the service provider).
//
//      - err:
//        Set if accessToken does not contain the SESSION_HANDLE_PARAM needed to
//        refresh the token, or if an error occurred when making the request.
func (c *Consumer) RefreshToken(accessToken *AccessToken) (atoken *AccessToken, err error) {
	params := make(map[string]string)
	sessionHandle, ok := accessToken.AdditionalData[SESSION_HANDLE_PARAM]
	if !ok {
		return nil, errors.New("Missing " + SESSION_HANDLE_PARAM + " in access token.")
	}
	params[SESSION_HANDLE_PARAM] = sessionHandle
	params[TOKEN_PARAM] = accessToken.Token

	return c.makeAccessTokenRequest(params, accessToken.Secret)
}

// Use the service provider to obtain an AccessToken for a given session
//      - params:
//        The access token request paramters.
//
//      - secret:
//        Secret key to use when signing the access token request.
//
// It will return:
//      - atoken
//        An AccessToken which can be used to access the user's data (until it is
//        revoked by the user or the service provider).
//
//      - err:
//        Set only if there was an error, nil otherwise.
func (c *Consumer) makeAccessTokenRequest(params map[string]string, secret string) (atoken *AccessToken, err error) {
	return c.makeAccessTokenRequestWithParams(params, secret, c.AdditionalParams)
}

func (c *Consumer) makeAccessTokenRequestWithParams(params map[string]string, secret string, additionalParams map[string]string) (atoken *AccessToken, err error) {
	orderedParams := c.baseParams(c.consumerKey, additionalParams)
	for key, value := range params {
		orderedParams.Add(key, value)
	}

	req := &request{
		method:      c.serviceProvider.httpMethod(),
		url:         c.serviceProvider.AccessTokenUrl,
		oauthParams: orderedParams,
	}
	if _, err := c.signRequest(req, secret); err != nil {
		return nil, err
	}

	resp, err := c.getBody(c.serviceProvider.httpMethod(), c.serviceProvider.AccessTokenUrl, orderedParams)
	if err != nil {
		return nil, err
	}

	return parseAccessToken(*resp)
}

type RoundTripper struct {
	consumer *Consumer
	token    *AccessToken
}

func (c *Consumer) MakeRoundTripper(token *AccessToken) (*RoundTripper, error) {
	return &RoundTripper{consumer: c, token: token}, nil
}

func (c *Consumer) MakeHttpClient(token *AccessToken) (*http.Client, error) {
	return &http.Client{
		Transport: &RoundTripper{consumer: c, token: token},
	}, nil
}

// ** DEPRECATED **
// Please call Get on the http client returned by MakeHttpClient instead!
//
// Executes an HTTP Get, authorized via the AccessToken.
//      - url:
//        The base url, without any query params, which is being accessed
//
//      - userParams:
//        Any key=value params to be included in the query string
//
//      - token:
//        The AccessToken returned by AuthorizeToken()
//
// This method returns:
//      - resp:
//        The HTTP Response resulting from making this request.
//
//      - err:
//        Set only if there was an error, nil otherwise.
func (c *Consumer) Get(url string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequest("GET", url, LOC_URL, "", userParams, token)
}

func encodeUserParams(userParams map[string]string) string {
	data := url.Values{}
	for k, v := range userParams {
		data.Add(k, v)
	}
	return data.Encode()
}

// ** DEPRECATED **
// Please call "Post" on the http client returned by MakeHttpClient instead
func (c *Consumer) PostForm(url string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.PostWithBody(url, "", userParams, token)
}

// ** DEPRECATED **
// Please call "Post" on the http client returned by MakeHttpClient instead
func (c *Consumer) Post(url string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.PostWithBody(url, "", userParams, token)
}

// ** DEPRECATED **
// Please call "Post" on the http client returned by MakeHttpClient instead
func (c *Consumer) PostWithBody(url string, body string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequest("POST", url, LOC_BODY, body, userParams, token)
}

// ** DEPRECATED **
// Please call "Do" on the http client returned by MakeHttpClient instead
// (and set the "Content-Type" header explicitly in the http.Request)
func (c *Consumer) PostJson(url string, body string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequest("POST", url, LOC_JSON, body, nil, token)
}

// ** DEPRECATED **
// Please call "Do" on the http client returned by MakeHttpClient instead
// (and set the "Content-Type" header explicitly in the http.Request)
func (c *Consumer) PostXML(url string, body string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequest("POST", url, LOC_XML, body, nil, token)
}

// ** DEPRECATED **
// Please call "Do" on the http client returned by MakeHttpClient instead
// (and setup the multipart data explicitly in the http.Request)
func (c *Consumer) PostMultipart(url, multipartName string, multipartData io.ReadCloser, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequestReader("POST", url, LOC_MULTIPART, 0, multipartName, multipartData, userParams, token)
}

// ** DEPRECATED **
// Please call "Delete" on the http client returned by MakeHttpClient instead
func (c *Consumer) Delete(url string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequest("DELETE", url, LOC_URL, "", userParams, token)
}

// ** DEPRECATED **
// Please call "Put" on the http client returned by MakeHttpClient instead
func (c *Consumer) Put(url string, body string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequest("PUT", url, LOC_URL, body, userParams, token)
}

func (c *Consumer) Debug(enabled bool) {
	c.debug = enabled
	c.signer.Debug(enabled)
}

type pair struct {
	key   string
	value string
}

type pairs []pair

func (p pairs) Len() int           { return len(p) }
func (p pairs) Less(i, j int) bool { return p[i].key < p[j].key }
func (p pairs) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }

// This function has basically turned into a backwards compatibility layer
// between the old API (where clients explicitly called consumer.Get()
// consumer.Post() etc), and the new API (which takes actual http.Requests)
//
// So, here we construct the appropriate HTTP request for the inputs.
func (c *Consumer) makeAuthorizedRequestReader(method string, urlString string, dataLocation DataLocation, contentLength int, multipartName string, body io.ReadCloser, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	urlObject, err := url.Parse(urlString)
	if err != nil {
		return nil, err
	}

	request := &http.Request{
		Method:        method,
		URL:           urlObject,
		Header:        http.Header{},
		Body:          body,
		ContentLength: int64(contentLength),
	}

	vals := url.Values{}
	for k, v := range userParams {
		vals.Add(k, v)
	}

	if dataLocation != LOC_BODY {
		request.URL.RawQuery = vals.Encode()
		request.URL.RawQuery = strings.Replace(
			request.URL.RawQuery, ";", "%3B", -1)

	} else {
		// TODO(mrjones): validate that we're not overrideing an exising body?
		request.ContentLength = int64(len(vals.Encode()))
		if request.ContentLength == 0 {
			request.Body = nil
		} else {
			request.Body = ioutil.NopCloser(strings.NewReader(vals.Encode()))
		}
	}

	for k, vs := range c.AdditionalHeaders {
		for _, v := range vs {
			request.Header.Set(k, v)
		}
	}

	if dataLocation == LOC_BODY {
		request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	}

	if dataLocation == LOC_JSON {
		request.Header.Set("Content-Type", "application/json")
	}

	if dataLocation == LOC_XML {
		request.Header.Set("Content-Type", "application/xml")
	}

	if dataLocation == LOC_MULTIPART {
		pipeReader, pipeWriter := io.Pipe()
		writer := multipart.NewWriter(pipeWriter)
		if request.URL.Host == "www.mrjon.es" &&
			request.URL.Path == "/unittest" {
			writer.SetBoundary("UNITTESTBOUNDARY")
		}
		go func(body io.Reader) {
			part, err := writer.CreateFormFile(multipartName, "/no/matter")
			if err != nil {
				writer.Close()
				pipeWriter.CloseWithError(err)
				return
			}
			_, err = io.Copy(part, body)
			if err != nil {
				writer.Close()
				pipeWriter.CloseWithError(err)
				return
			}
			writer.Close()
			pipeWriter.Close()
		}(body)
		request.Body = pipeReader
		request.Header.Set("Content-Type", writer.FormDataContentType())
	}

	rt := RoundTripper{consumer: c, token: token}

	resp, err = rt.RoundTrip(request)
	if err != nil {
		return resp, err
	}

	if resp.StatusCode < http.StatusOK || resp.StatusCode >= http.StatusMultipleChoices {
		defer resp.Body.Close()
		bytes, _ := ioutil.ReadAll(resp.Body)

		return resp, HTTPExecuteError{
			RequestHeaders:    "",
			ResponseBodyBytes: bytes,
			Status:            resp.Status,
			StatusCode:        resp.StatusCode,
		}
	}

	return resp, nil
}

// cloneReq clones the src http.Request, making deep copies of the Header and
// the URL but shallow copies of everything else
func cloneReq(src *http.Request) *http.Request {
	dst := &http.Request{}
	*dst = *src

	dst.Header = make(http.Header, len(src.Header))
	for k, s := range src.Header {
		dst.Header[k] = append([]string(nil), s...)
	}

	if src.URL != nil {
		dst.URL = cloneURL(src.URL)
	}

	return dst
}

// cloneURL shallow clones the src *url.URL
func cloneURL(src *url.URL) *url.URL {
	dst := &url.URL{}
	*dst = *src

	return dst
}

func canonicalizeUrl(u *url.URL) string {
	var buf bytes.Buffer
	buf.WriteString(u.Scheme)
	buf.WriteString("://")
	buf.WriteString(u.Host)
	buf.WriteString(u.Path)

	return buf.String()
}

func getBody(request *http.Request) ([]byte, error) {
	if request.Body == nil {
		return nil, nil
	}
	defer request.Body.Close()
	originalBody, err := ioutil.ReadAll(request.Body)
	if err != nil {
		return nil, err
	}

	// We have to re-install the body (because we've ruined it by reading it).
	if len(originalBody) > 0 {
		request.Body = ioutil.NopCloser(bytes.NewReader(originalBody))
	} else {
		request.Body = nil
	}
	return originalBody, nil
}

func parseBody(request *http.Request) (map[string]string, error) {
	userParams := map[string]string{}

	// TODO(mrjones): factor parameter extraction into a separate method
	if request.Header.Get("Content-Type") !=
		"application/x-www-form-urlencoded" {
		// Most of the time we get parameters from the query string:
		for k, vs := range request.URL.Query() {
			if len(vs) != 1 {
				return nil, fmt.Errorf("Must have exactly one value per param")
			}

			userParams[k] = vs[0]
		}
	} else {
		// x-www-form-urlencoded parameters come from the body instead:
		body, err := getBody(request)
		if err != nil {
			return nil, err
		}

		params, err := url.ParseQuery(string(body))
		if err != nil {
			return nil, err
		}

		for k, vs := range params {
			if len(vs) != 1 {
				return nil, fmt.Errorf("Must have exactly one value per param")
			}

			userParams[k] = vs[0]
		}
	}

	return userParams, nil
}

func paramsToSortedPairs(params map[string]string) pairs {
	// Sort parameters alphabetically
	paramPairs := make(pairs, len(params))
	i := 0
	for key, value := range params {
		paramPairs[i] = pair{key: key, value: value}
		i++
	}
	sort.Sort(paramPairs)

	return paramPairs
}

func calculateBodyHash(request *http.Request, s signer) (string, error) {
	if request.Header.Get("Content-Type") ==
		"application/x-www-form-urlencoded" {
		return "", nil
	}

	var body []byte

	if request.Body != nil {
		var err error
		body, err = getBody(request)
		if err != nil {
			return "", err
		}
	}

	h := s.HashFunc().New()
	h.Write(body)
	rawSignature := h.Sum(nil)

	return base64.StdEncoding.EncodeToString(rawSignature), nil
}

func (rt *RoundTripper) RoundTrip(userRequest *http.Request) (*http.Response, error) {
	serverRequest := cloneReq(userRequest)

	allParams := rt.consumer.baseParams(
		rt.consumer.consumerKey, rt.consumer.AdditionalParams)

	// Do not add the "oauth_token" parameter, if the access token has not been
	// specified. By omitting this parameter when it is not specified, allows
	// two-legged OAuth calls.
	if len(rt.token.Token) > 0 {
		allParams.Add(TOKEN_PARAM, rt.token.Token)
	}

	if rt.consumer.serviceProvider.BodyHash {
		bodyHash, err := calculateBodyHash(serverRequest, rt.consumer.signer)
		if err != nil {
			return nil, err
		}

		if bodyHash != "" {
			allParams.Add(BODY_HASH_PARAM, bodyHash)
		}
	}

	authParams := allParams.Clone()

	// TODO(mrjones): put these directly into the paramPairs below?
	userParams, err := parseBody(serverRequest)
	if err != nil {
		return nil, err
	}
	paramPairs := paramsToSortedPairs(userParams)

	for i := range paramPairs {
		allParams.Add(paramPairs[i].key, paramPairs[i].value)
	}

	signingURL := cloneURL(serverRequest.URL)
	if host := serverRequest.Host; host != "" {
		signingURL.Host = host
	}
	baseString := rt.consumer.requestString(serverRequest.Method, canonicalizeUrl(signingURL), allParams)

	signature, err := rt.consumer.signer.Sign(baseString, rt.token.Secret)
	if err != nil {
		return nil, err
	}

	authParams.Add(SIGNATURE_PARAM, signature)

	// Set auth header.
	oauthHdr := OAUTH_HEADER
	for pos, key := range authParams.Keys() {
		for innerPos, value := range authParams.Get(key) {
			if pos+innerPos > 0 {
				oauthHdr += ","
			}
			oauthHdr += key + "=\"" + value + "\""
		}
	}
	serverRequest.Header.Add(HTTP_AUTH_HEADER, oauthHdr)

	if rt.consumer.debug {
		fmt.Printf("Request: %v\n", serverRequest)
	}

	resp, err := rt.consumer.HttpClient.Do(serverRequest)

	if err != nil {
		return resp, err
	}

	return resp, nil
}

func (c *Consumer) makeAuthorizedRequest(method string, url string, dataLocation DataLocation, body string, userParams map[string]string, token *AccessToken) (resp *http.Response, err error) {
	return c.makeAuthorizedRequestReader(method, url, dataLocation, len(body), "", ioutil.NopCloser(strings.NewReader(body)), userParams, token)
}

type request struct {
	method      string
	url         string
	oauthParams *OrderedParams
	userParams  map[string]string
}

type HttpClient interface {
	Do(req *http.Request) (resp *http.Response, err error)
}

type clock interface {
	Seconds() int64
	Nanos() int64
}

type nonceGenerator interface {
	Int63() int64
}

type key interface {
	String() string
}

type signer interface {
	Sign(message string, tokenSecret string) (string, error)
	Verify(message string, signature string) error
	SignatureMethod() string
	HashFunc() crypto.Hash
	Debug(enabled bool)
}

type defaultClock struct{}

func (*defaultClock) Seconds() int64 {
	return time.Now().Unix()
}

func (*defaultClock) Nanos() int64 {
	return time.Now().UnixNano()
}

func (c *Consumer) signRequest(req *request, tokenSecret string) (*request, error) {
	baseString := c.requestString(req.method, req.url, req.oauthParams)

	signature, err := c.signer.Sign(baseString, tokenSecret)
	if err != nil {
		return nil, err
	}

	req.oauthParams.Add(SIGNATURE_PARAM, signature)
	return req, nil
}

// Obtains an AccessToken from the response of a service provider.
//      - data:
//        The response body.
//
// This method returns:
//      - atoken:
//        The AccessToken generated from the response body.
//
//      - err:
//        Set if an AccessToken could not be parsed from the given input.
func parseAccessToken(data string) (atoken *AccessToken, err error) {
	parts, err := url.ParseQuery(data)
	if err != nil {
		return nil, err
	}

	tokenParam := parts[TOKEN_PARAM]
	parts.Del(TOKEN_PARAM)
	if len(tokenParam) < 1 {
		return nil, errors.New("Missing " + TOKEN_PARAM + " in response. " +
			"Full response body: '" + data + "'")
	}
	tokenSecretParam := parts[TOKEN_SECRET_PARAM]
	parts.Del(TOKEN_SECRET_PARAM)
	if len(tokenSecretParam) < 1 {
		return nil, errors.New("Missing " + TOKEN_SECRET_PARAM + " in response." +
			"Full response body: '" + data + "'")
	}

	additionalData := parseAdditionalData(parts)

	return &AccessToken{tokenParam[0], tokenSecretParam[0], additionalData}, nil
}

func parseRequestToken(data string) (*RequestToken, error) {
	parts, err := url.ParseQuery(data)
	if err != nil {
		return nil, err
	}

	tokenParam := parts[TOKEN_PARAM]
	if len(tokenParam) < 1 {
		return nil, errors.New("Missing " + TOKEN_PARAM + " in response. " +
			"Full response body: '" + data + "'")
	}
	tokenSecretParam := parts[TOKEN_SECRET_PARAM]
	if len(tokenSecretParam) < 1 {
		return nil, errors.New("Missing " + TOKEN_SECRET_PARAM + " in response." +
			"Full response body: '" + data + "'")
	}
	return &RequestToken{tokenParam[0], tokenSecretParam[0]}, nil
}

func (c *Consumer) baseParams(consumerKey string, additionalParams map[string]string) *OrderedParams {
	params := NewOrderedParams()
	params.Add(VERSION_PARAM, OAUTH_VERSION)
	params.Add(SIGNATURE_METHOD_PARAM, c.signer.SignatureMethod())
	params.Add(TIMESTAMP_PARAM, strconv.FormatInt(c.clock.Seconds(), 10))
	params.Add(NONCE_PARAM, strconv.FormatInt(c.nonceGenerator.Int63(), 10))
	params.Add(CONSUMER_KEY_PARAM, consumerKey)
	for key, value := range additionalParams {
		params.Add(key, value)
	}
	return params
}

func parseAdditionalData(parts url.Values) map[string]string {
	params := make(map[string]string)
	for key, value := range parts {
		if len(value) > 0 {
			params[key] = value[0]
		}
	}
	return params
}

type HMACSigner struct {
	consumerSecret string
	hashFunc       crypto.Hash
	debug          bool
}

func (s *HMACSigner) Debug(enabled bool) {
	s.debug = enabled
}

func (s *HMACSigner) Sign(message string, tokenSecret string) (string, error) {
	key := escape(s.consumerSecret) + "&" + escape(tokenSecret)
	if s.debug {
		fmt.Println("Signing:", message)
		fmt.Println("Key:", key)
	}

	h := hmac.New(s.HashFunc().New, []byte(key))
	h.Write([]byte(message))
	rawSignature := h.Sum(nil)

	base64signature := base64.StdEncoding.EncodeToString(rawSignature)
	if s.debug {
		fmt.Println("Base64 signature:", base64signature)
	}
	return base64signature, nil
}

func (s *HMACSigner) Verify(message string, signature string) error {
	if s.debug {
		fmt.Println("Verifying Base64 signature:", signature)
	}
	validSignature, err := s.Sign(message, "")
	if err != nil {
		return err
	}

	if validSignature != signature {
		decodedSigniture, _ := url.QueryUnescape(signature)
		if validSignature != decodedSigniture {
			return fmt.Errorf("signature did not match")
		}
	}

	return nil
}

func (s *HMACSigner) SignatureMethod() string {
	return SIGNATURE_METHOD_HMAC + HASH_METHOD_MAP[s.HashFunc()]
}

func (s *HMACSigner) HashFunc() crypto.Hash {
	return s.hashFunc
}

type RSASigner struct {
	debug      bool
	rand       io.Reader
	privateKey *rsa.PrivateKey
	hashFunc   crypto.Hash
}

func (s *RSASigner) Debug(enabled bool) {
	s.debug = enabled
}

func (s *RSASigner) Sign(message string, tokenSecret string) (string, error) {
	if s.debug {
		fmt.Println("Signing:", message)
	}

	h := s.HashFunc().New()
	h.Write([]byte(message))
	digest := h.Sum(nil)

	signature, err := rsa.SignPKCS1v15(s.rand, s.privateKey, s.HashFunc(), digest)
	if err != nil {
		return "", nil
	}

	base64signature := base64.StdEncoding.EncodeToString(signature)
	if s.debug {
		fmt.Println("Base64 signature:", base64signature)
	}

	return base64signature, nil
}

func (s *RSASigner) Verify(message string, base64signature string) error {
	if s.debug {
		fmt.Println("Verifying:", message)
		fmt.Println("Verifying Base64 signature:", base64signature)
	}

	h := s.HashFunc().New()
	h.Write([]byte(message))
	digest := h.Sum(nil)

	signature, err := base64.StdEncoding.DecodeString(base64signature)
	if err != nil {
		return err
	}

	return rsa.VerifyPKCS1v15(&s.privateKey.PublicKey, s.HashFunc(), digest, signature)
}

func (s *RSASigner) SignatureMethod() string {
	return SIGNATURE_METHOD_RSA + HASH_METHOD_MAP[s.HashFunc()]
}

func (s *RSASigner) HashFunc() crypto.Hash {
	return s.hashFunc
}

func escape(s string) string {
	t := make([]byte, 0, 3*len(s))
	for i := 0; i < len(s); i++ {
		c := s[i]
		if isEscapable(c) {
			t = append(t, '%')
			t = append(t, "0123456789ABCDEF"[c>>4])
			t = append(t, "0123456789ABCDEF"[c&15])
		} else {
			t = append(t, s[i])
		}
	}
	return string(t)
}

func isEscapable(b byte) bool {
	return !('A' <= b && b <= 'Z' || 'a' <= b && b <= 'z' || '0' <= b && b <= '9' || b == '-' || b == '.' || b == '_' || b == '~')

}

func (c *Consumer) requestString(method string, url string, params *OrderedParams) string {
	result := method + "&" + escape(url)
	for pos, key := range params.Keys() {
		for innerPos, value := range params.Get(key) {
			if pos+innerPos == 0 {
				result += "&"
			} else {
				result += escape("&")
			}
			result += escape(fmt.Sprintf("%s=%s", key, value))
		}
	}
	return result
}

func (c *Consumer) getBody(method, url string, oauthParams *OrderedParams) (*string, error) {
	resp, err := c.httpExecute(method, url, "", 0, nil, oauthParams)
	if err != nil {
		return nil, errors.New("httpExecute: " + err.Error())
	}
	bodyBytes, err := ioutil.ReadAll(resp.Body)
	resp.Body.Close()
	if err != nil {
		return nil, errors.New("ReadAll: " + err.Error())
	}
	bodyStr := string(bodyBytes)
	if c.debug {
		fmt.Printf("STATUS: %d %s\n", resp.StatusCode, resp.Status)
		fmt.Println("BODY RESPONSE: " + bodyStr)
	}
	return &bodyStr, nil
}

// HTTPExecuteError signals that a call to httpExecute failed.
type HTTPExecuteError struct {
	// RequestHeaders provides a stringified listing of request headers.
	RequestHeaders string
	// ResponseBodyBytes is the response read into a byte slice.
	ResponseBodyBytes []byte
	// Status is the status code string response.
	Status string
	// StatusCode is the parsed status code.
	StatusCode int
}

// Error provides a printable string description of an HTTPExecuteError.
func (e HTTPExecuteError) Error() string {
	return "HTTP response is not 200/OK as expected. Actual response: \n" +
		"\tResponse Status: '" + e.Status + "'\n" +
		"\tResponse Code: " + strconv.Itoa(e.StatusCode) + "\n" +
		"\tResponse Body: " + string(e.ResponseBodyBytes) + "\n" +
		"\tRequest Headers: " + e.RequestHeaders
}

func (c *Consumer) httpExecute(
	method string, urlStr string, contentType string, contentLength int, body io.Reader, oauthParams *OrderedParams) (*http.Response, error) {
	// Create base request.
	req, err := http.NewRequest(method, urlStr, body)
	if err != nil {
		return nil, errors.New("NewRequest failed: " + err.Error())
	}

	// Set auth header.
	req.Header = http.Header{}
	oauthHdr := "OAuth "
	for pos, key := range oauthParams.Keys() {
		for innerPos, value := range oauthParams.Get(key) {
			if pos+innerPos > 0 {
				oauthHdr += ","
			}
			oauthHdr += key + "=\"" + value + "\""
		}
	}
	req.Header.Add("Authorization", oauthHdr)

	// Add additional custom headers
	for key, vals := range c.AdditionalHeaders {
		for _, val := range vals {
			req.Header.Add(key, val)
		}
	}

	// Set contentType if passed.
	if contentType != "" {
		req.Header.Set("Content-Type", contentType)
	}

	// Set contentLength if passed.
	if contentLength > 0 {
		req.Header.Set("Content-Length", strconv.Itoa(contentLength))
	}

	if c.debug {
		fmt.Printf("Request: %v\n", req)
	}
	resp, err := c.HttpClient.Do(req)
	if err != nil {
		return nil, errors.New("Do: " + err.Error())
	}

	debugHeader := ""
	for k, vals := range req.Header {
		for _, val := range vals {
			debugHeader += "[key: " + k + ", val: " + val + "]"
		}
	}

	// StatusMultipleChoices is 300, any 2xx response should be treated as success
	if resp.StatusCode < http.StatusOK || resp.StatusCode >= http.StatusMultipleChoices {
		defer resp.Body.Close()
		bytes, _ := ioutil.ReadAll(resp.Body)

		return resp, HTTPExecuteError{
			RequestHeaders:    debugHeader,
			ResponseBodyBytes: bytes,
			Status:            resp.Status,
			StatusCode:        resp.StatusCode,
		}
	}
	return resp, err
}

//
// String Sorting helpers
//

type ByValue []string

func (a ByValue) Len() int {
	return len(a)
}

func (a ByValue) Swap(i, j int) {
	a[i], a[j] = a[j], a[i]
}

func (a ByValue) Less(i, j int) bool {
	return a[i] < a[j]
}

//
// ORDERED PARAMS
//

type OrderedParams struct {
	allParams   map[string][]string
	keyOrdering []string
}

func NewOrderedParams() *OrderedParams {
	return &OrderedParams{
		allParams:   make(map[string][]string),
		keyOrdering: make([]string, 0),
	}
}

func (o *OrderedParams) Get(key string) []string {
	sort.Sort(ByValue(o.allParams[key]))
	return o.allParams[key]
}

func (o *OrderedParams) Keys() []string {
	sort.Sort(o)
	return o.keyOrdering
}

func (o *OrderedParams) Add(key, value string) {
	o.AddUnescaped(key, escape(value))
}

func (o *OrderedParams) AddUnescaped(key, value string) {
	if _, exists := o.allParams[key]; !exists {
		o.keyOrdering = append(o.keyOrdering, key)
		o.allParams[key] = make([]string, 1)
		o.allParams[key][0] = value
	} else {
		o.allParams[key] = append(o.allParams[key], value)
	}
}

func (o *OrderedParams) Len() int {
	return len(o.keyOrdering)
}

func (o *OrderedParams) Less(i int, j int) bool {
	return o.keyOrdering[i] < o.keyOrdering[j]
}

func (o *OrderedParams) Swap(i int, j int) {
	o.keyOrdering[i], o.keyOrdering[j] = o.keyOrdering[j], o.keyOrdering[i]
}

func (o *OrderedParams) Clone() *OrderedParams {
	clone := NewOrderedParams()
	for _, key := range o.Keys() {
		for _, value := range o.Get(key) {
			clone.AddUnescaped(key, value)
		}
	}
	return clone
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-19 22:29:55 +0000