# See the License for the specific language governing permissions and
# limitations under the License.
-# Sample of the Curl module.
+# Example use of the Curl module
module curl_http
import curl
-# Small class to represent an Http Fetcher
+# Custom delegate to receive callbacks from a Curl transfer
class MyHttpFetcher
super CurlCallbacks
- var curl: Curl
- var our_body: String = ""
+ # Body of the downloaded file
+ var fetched_body = ""
- init(curl: Curl) do self.curl = curl
-
- # Release curl object
- fun destroy do self.curl.destroy
-
- # Header callback
redef fun header_callback(line) do
# We keep this callback silent for testing purposes
- #if not line.has_prefix("Date:") then print "Header_callback : {line}"
+ #if not line.has_prefix("Date:") then print "Header_callback: {line}"
end
- # Body callback
- redef fun body_callback(line) do self.our_body = "{self.our_body}{line}"
+ redef fun body_callback(line) do self.fetched_body += line
- # Stream callback - Cf : No one is registered
- redef fun stream_callback(buffer, size, count) do print "Stream_callback : {buffer} - {size} - {count}"
+ redef fun stream_callback(buffer) do print "Stream_callback: {buffer}"
end
+private fun print_usage do print "Usage: curl_http [POST|GET|GET_FILE] url"
-# Program
if args.length < 2 then
- print "Usage: curl_http <method wished [POST, GET, GET_FILE]> <target url>"
-else
- var curl = new Curl
- var url = args[1]
- var request = new CurlHTTPRequest(url, curl)
+ print_usage
+ exit 1
+end
+
+var url = args[1]
+var request = new CurlHTTPRequest(url)
+request.verbose = false # Set to `true` to debug
+if args[0] == "GET" then
# HTTP Get Request
- if args[0] == "GET" then
- request.verbose = false
- var getResponse = request.execute
-
- if getResponse isa CurlResponseSuccess then
- print "Status code : {getResponse.status_code}"
- print "Body : {getResponse.body_str}"
- else if getResponse isa CurlResponseFailed then
- print "Error code : {getResponse.error_code}"
- print "Error msg : {getResponse.error_msg}"
- end
+ var response = request.execute
+
+ if response isa CurlResponseSuccess then
+ print "Status code: {response.status_code}"
+ print "Body: {response.body_str}"
+ else if response isa CurlResponseFailed then
+ print "Error code: {response.error_code}"
+ print "Error msg: {response.error_msg}"
+ end
+else if args[0] == "POST" then
# HTTP Post Request
- else if args[0] == "POST" then
- var myHttpFetcher = new MyHttpFetcher(curl)
- request.delegate = myHttpFetcher
-
- var postDatas = new HeaderMap
- postDatas["Bugs Bunny"] = "Daffy Duck"
- postDatas["Batman"] = "Robin likes special characters @#ùà!è§'(\"é&://,;<>∞~*"
- postDatas["Batman"] = "Yes you can set multiple identical keys, but APACHE will consider only once, the last one"
- request.datas = postDatas
- request.verbose = false
- var postResponse = request.execute
-
- print "Our body from the callback : {myHttpFetcher.our_body}"
-
- if postResponse isa CurlResponseSuccess then
- print "*** Answer ***"
- print "Status code : {postResponse.status_code}"
- print "Body should be empty, because we decided to manage callbacks : {postResponse.body_str.length}"
- else if postResponse isa CurlResponseFailed then
- print "Error code : {postResponse.error_code}"
- print "Error msg : {postResponse.error_msg}"
- end
+ var my_http_fetcher = new MyHttpFetcher
+ request.delegate = my_http_fetcher
+
+ var post_datas = new HeaderMap
+ post_datas["Bugs Bunny"] = "Daffy Duck"
+ post_datas["Batman"] = "Robin likes special characters @#ùà!è§'(\"é&://,;<>∞~*"
+ post_datas["Batman"] = "Yes you can set multiple identical keys, but APACHE will consider only one, the last one"
+ request.datas = post_datas
+ var response = request.execute
+
+ print "Our body from the callback: {my_http_fetcher.fetched_body}"
+
+ if response isa CurlResponseSuccess then
+ print "*** Answer ***"
+ print "Status code: {response.status_code}"
+ print "Body should be empty, because we decided to manage callbacks: {response.body_str.length}"
+ else if response isa CurlResponseFailed then
+ print "Error code: {response.error_code}"
+ print "Error msg: {response.error_msg}"
+ end
+else if args[0] == "GET_FILE" then
# HTTP Get to file Request
- else if args[0] == "GET_FILE" then
- var headers = new HeaderMap
- headers["Accept"] = "Moo"
- request.headers = headers
- request.verbose = false
- var downloadResponse = request.download_to_file(null)
-
- if downloadResponse isa CurlFileResponseSuccess then
- print "*** Answer ***"
- print "Status code : {downloadResponse.status_code}"
- print "Size downloaded : {downloadResponse.size_download}"
- else if downloadResponse isa CurlResponseFailed then
- print "Error code : {downloadResponse.error_code}"
- print "Error msg : {downloadResponse.error_msg}"
- end
- # Program logic
- else
- print "Usage : Method[POST, GET, GET_FILE]"
+ var headers = new HeaderMap
+ headers["Accept"] = "Moo"
+ request.headers = headers
+ var response = request.download_to_file(null)
+
+ if response isa CurlFileResponseSuccess then
+ print "*** Answer ***"
+ print "Status code: {response.status_code}"
+ print "Size downloaded: {response.size_download}"
+ else if response isa CurlResponseFailed then
+ print "Error code: {response.error_code}"
+ print "Error msg: {response.error_msg}"
end
+
+else
+ print_usage
+ exit 1
end
nitlanguage / nit.git / commitdiff