As I’m moving more code that I’ve written in the past to my blog, I remembered I posted this code a long while on CodePaste. It allows you to send an SMS text message via your Google Voice account.
It’s a simple bit of code that’s authenticating via your Google account and then getting the proper auth codes in order to send the text message.
Honestly, I don’t know for sure if it still works since Google has been making changes to their authentication services and such, but here’s the code for posterity’s sake.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 | using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.Collections.Specialized;using System.IO;using System.Text.RegularExpressions;using System.Web.Script.Serialization;using System.Dynamic;using System.Collections;using System.Collections.ObjectModel;namespace SMSTest{ class Program { static void Main(string[] args) { try { // First, let's get the auth code - requires Google credentials StringBuilder sb = new StringBuilder(); NameValueCollection kvp = new NameValueCollection(); kvp.Add("accountType", "GOOGLE"); kvp.Add("Email", "your email here"); kvp.Add("Passwd", "your password here"); kvp.Add("service", "grandcentral"); kvp.Add("source", "long2know.com-test-1.0"); foreach (string key in kvp.Keys) { sb.Append(string.Format("{0}={1}&", key, kvp[key])); } ASCIIEncoding encoding = new ASCIIEncoding(); byte[] data = encoding.GetBytes(sb.ToString()); HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(authUrl); myRequest.Method = "POST"; myRequest.ContentType = "application/x-www-form-urlencoded"; myRequest.ContentLength = data.Length; Stream newStream = myRequest.GetRequestStream(); newStream.Write(data, 0, data.Length); newStream.Close(); StreamReader sr = new StreamReader(myRequest.GetResponse().GetResponseStream()); string readResponse = sr.ReadToEnd(); // Parse SID, Auth, LSID Regex regAuth = new Regex(@"Auth=(.+)", RegexOptions.IgnoreCase); Regex regSid = new Regex(@"SID=(.+)", RegexOptions.IgnoreCase); Regex regLsid = new Regex(@"LSID=(.+)", RegexOptions.IgnoreCase); Regex regRnrse = new Regex(@"'_rnr_se': '([^']+)'", RegexOptions.IgnoreCase); Match matchAuth = regAuth.Match(readResponse); Match matchSid = regSid.Match(readResponse); Match matchLsid = regLsid.Match(readResponse); string auth = string.Empty; string sid = string.Empty; string lsid = string.Empty; string rnrse = string.Empty; if (matchAuth.Success && matchSid.Success && matchLsid.Success) { auth = matchAuth.Groups[0].Value; sid = matchSid.Groups[0].Value; lsid = matchLsid.Groups[0].Value; } else { throw new WebException("Could not authenticate.", new Exception("Failed to retrieve auth, sid, or lsid")); } // Now, we need to get the rnr_se code myRequest = (HttpWebRequest)WebRequest.Create(authVoiceUrl); myRequest.Headers.Add(HttpRequestHeader.Authorization, string.Format("GoogleLogin {0}", auth)); sr = new StreamReader(myRequest.GetResponse().GetResponseStream()); readResponse = sr.ReadToEnd(); Match matchRnrse = regRnrse.Match(readResponse); if (matchRnrse.Success) { rnrse = matchRnrse.Groups[1].Value; } else { throw new WebException("Could not authenticate.", new Exception("Failed to retrieve rnr_se")); } // Finally, let's send the message sb = new StringBuilder(); kvp = new NameValueCollection(); kvp.Add("_rnr_se", System.Web.HttpUtility.UrlEncode(rnrse)); kvp.Add("phoneNumber", "18885551010"); // country code + area code + phone number (international notation) kvp.Add("text", System.Web.HttpUtility.UrlEncode("Here is my test SMS a console app!")); kvp.Add("id", ""); foreach (string key in kvp.Keys) { sb.Append(string.Format("{0}={1}&", key, kvp[key])); } data = encoding.GetBytes(sb.ToString()); myRequest = (HttpWebRequest)WebRequest.Create(smsUrl); myRequest.Headers.Add(HttpRequestHeader.Authorization, string.Format("GoogleLogin {0}", auth)); myRequest.Method = "POST"; myRequest.ContentType = "application/x-www-form-urlencoded"; myRequest.ContentLength = data.Length; newStream = myRequest.GetRequestStream(); newStream.Write(data, 0, data.Length); newStream.Close(); sr = new StreamReader(myRequest.GetResponse().GetResponseStream()); readResponse = sr.ReadToEnd(); // Deserialize into a dynamic type - uses DynamicJsonConverter (courtesy of this post: http://stackoverflow.com/questions/3142495/deserialize-json-into-c-sharp-dynamic-object) var serializer = new JavaScriptSerializer(); serializer.RegisterConverters(new[] { new DynamicJsonConverter() }); dynamic resp = serializer.Deserialize(readResponse, typeof(object)); // Alternatively, you use a simple dictionary dynamic type //JavaScriptSerializer js = new JavaScriptSerializer(); //var json = js.Deserialize<dynamic>(readResponse); if (resp.ok) { Console.WriteLine("Message was sent successfully."); } else { Console.WriteLine("Message was not sent successfully."); } } catch (WebException e) { Console.WriteLine(string.Format("Web Exception: {0}", e.InnerException)); } } } public class DynamicJsonConverter : JavaScriptConverter { public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer) { if (dictionary == null) throw new ArgumentNullException("dictionary"); return type == typeof(object) ? new DynamicJsonObject(dictionary) : null; } public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer) { throw new NotImplementedException(); } public override IEnumerable<Type> SupportedTypes { get { return new ReadOnlyCollection<Type>(new List<Type>(new[] { typeof(object) })); } } #region Nested type: DynamicJsonObject private sealed class DynamicJsonObject : DynamicObject { private readonly IDictionary<string, object> _dictionary; public DynamicJsonObject(IDictionary<string, object> dictionary) { if (dictionary == null) throw new ArgumentNullException("dictionary"); _dictionary = dictionary; } public override string ToString() { var sb = new StringBuilder("{"); ToString(sb); return sb.ToString(); } private void ToString(StringBuilder sb) { var firstInDictionary = true; foreach (var pair in _dictionary) { if (!firstInDictionary) sb.Append(","); firstInDictionary = false; var value = pair.Value; var name = pair.Key; if (value is string) { sb.AppendFormat("{0}:\"{1}\"", name, value); } else if (value is IDictionary<string, object>) { new DynamicJsonObject((IDictionary<string, object>)value).ToString(sb); } else if (value is ArrayList) { sb.Append(name + ":["); var firstInArray = true; foreach (var arrayValue in (ArrayList)value) { if (!firstInArray) sb.Append(","); firstInArray = false; if (arrayValue is IDictionary<string, object>) new DynamicJsonObject((IDictionary<string, object>)arrayValue).ToString(sb); else if (arrayValue is string) sb.AppendFormat("\"{0}\"", arrayValue); else sb.AppendFormat("{0}", arrayValue); } sb.Append("]"); } else { sb.AppendFormat("{0}:{1}", name, value); } } sb.Append("}"); } public override bool TryGetMember(GetMemberBinder binder, out object result) { if (!_dictionary.TryGetValue(binder.Name, out result)) { // return null to avoid exception. caller can check for null this way... result = null; return true; } var dictionary = result as IDictionary<string, object>; if (dictionary != null) { result = new DynamicJsonObject(dictionary); return true; } var arrayList = result as ArrayList; if (arrayList != null && arrayList.Count > 0) { if (arrayList[0] is IDictionary<string, object>) result = new List<object>(arrayList.Cast<IDictionary<string, object>>().Select(x => new DynamicJsonObject(x))); else result = new List<object>(arrayList.Cast<object>()); } return true; } } #endregion }} |