将主题从谷歌群组转移到此处，以便它可以帮助正在询问的人。
imageshack api：http://api.imageshack.us/
最终的http reqeust正在返回json：
{"success":true,"process_time":325,"result":{"max_filesize":5242880,"space_limit":52428800,"space_used":0,"space_left":52428800,"passed":0,"failed":0,"total":0,"images":[]}}
这不好，因为它没有上传:(
它应该返回一个图像对象。 http://api.imageshack.us/#h.ws82a1l6pp9g 因为这是imageshack api上的上传图片部分所说的
请帮助:(
我的扩展程序代码
var blobUrl;
var makeBlob = function () {
bigcanvas.toBlob(function (blob) {
var reader = new window.FileReader();
reader.readAsBinaryString(blob);
reader.onloadend = function () {
blobBinaryString = reader.result;
blobUrl = blobBinaryString;
Cu.reportError(blobUrl);
uploadBlob();
}
});
};
var uploadedImageUrl;
var uploadBlob = function () {
HTTP('POST', 'https://api.imageshack.us/v1/images', {
contentType: 'application/x-www-form-urlencoded',
//'album=' + urlencode('Stock History') + '&
body: 'auth_token=' + urlencode(auth_token) + 'file@=' + blobUrl,
onSuccess: function (status, responseXML, responseText, headers, statusText) {
Cu.reportError('XMLHttpRequest SUCCESS - imageshack uploadBlob\n' + statusText + '\n' + responseText);
eval('var json = ' + responseText);
uploadedImageUrl = json.direct_link;
submitBamdex();
},
onFailure: function (status, responseXML, responseText, headers, statusText) {
Cu.reportError('XMLHttpRequest FAILLLLLLLL - imageshack uploadBlob\n' + statusText + '\n' + responseText);
}
});
};
makeBlob(); //callllll the func
答案 0 :(得分：1)
此代码将画布上的绘图上传到imageshack
可以复制粘贴，但必须更新一些内容：
...
//this code uploads a drawing on a canvas to imageshack
var auth_token;
var loginImageshack = function() {
HTTP('POST','https://api.imageshack.us/v1/user/login',{
contentType: 'application/x-www-form-urlencoded',
body: 'user=USERNAME_TO_IMAGESHACK_HERE&password=' + urlencode('PASSWORD_TO_USERNAME_FOR_IMAGESHACK_HERE'),
onSuccess: function(status, responseXML, responseText, headers, statusText) {
Cu.reportError('XMLHttpRequest SUCCESS - imageshack login\n' + statusText + '\n' + responseText);
eval('var json = ' + responseText);
auth_token = json.result.auth_token;
makeImageshackFile();
},
onFailure: function(status, responseXML, responseText, headers, statusText) {
Cu.reportError('XMLHttpRequest FAILLLLLLLL - imageshack login\n' + statusText + '\n' + responseText);
}
});
};
var uploadedImageUrl;
var makeImageshackFile = function() {
var fd = new window.FormData();
fd.append("api_key", 'A835WS6Bww584g3568efa2z9823uua5ceh0h6325'); //USE YOUR API KEY HERE
fd.append("auth_token", auth_token);
fd.append('album', 'Stock History');
fd.append('title', 'THE-title-you-want-showing-on-imageshack')
fd.append("file@", bigcanvas.mozGetAsFile("foo.png")); //bigcanvas is a canvas with the image drawn on it: var bigcanvas = document.querySelector('#bigcanvas');
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
switch (xhr.readyState) {
case 4:
if (xhr.status==0 || (xhr.status>=200 && xhr.status<300)) {
Cu.reportError('XHR SUCCESS - \n' + xhr.responseText);
eval('var json = ' + xhr.responseText);
//ensure it passed else redo it I didnt program in the redo thing yet
//succesful json == {"success":true,"process_time":1274,"result":{"max_filesize":5242880,"space_limit":52428800,"space_used":270802,"space_left":52157998,"passed":1,"failed":0,"total":1,"images":[{"id":1067955963,"server":703,"bucket":2397,"lp_hash":"jj9g5p","filename":"9g5.png","original_filename":"foo.png","direct_link":"imageshack.us\/a\/img703\/2397\/9g5.png","title":"082813 200AM PST","description":null,"tags":[""],"likes":0,"liked":false,"views":0,"comments_count":0,"comments_disabled":false,"filter":0,"filesize":1029,"creation_date":1377681549,"width":760,"height":1110,"public":true,"is_owner":true,"owner":{"username":"bamdex","avatar":{"server":0,"filename":null}},"next_images":[],"prev_images":[{"server":59,"filename":"06mm.png"},{"server":706,"filename":"a1fg.png"}],"related_images":[{"server":59,"filename":"06mm.png"},{"server":41,"filename":"xn9q.png"},{"server":22,"filename":"t20a.png"},{"server":547,"filename":"fipx.png"},{"server":10,"filename":"dg6b.png"},{"se
uploadedImageUrl = json.result.images[0].direct_link;
Cu.reportError('succesfully uploaded image');
} else {
Cu.reportError('XHR FAIL - \n' + xhr.responseText);
}
break;
default:
//blah
}
}
xhr.open("POST", "https://api.imageshack.us/v1/images");
xhr.send(fd);
}
loginImageshack();
上面代码的重要说明
Services.appShel.hiddenDOMWindow，因此new window.FormData();会变为new Services.appShel.hiddenDOMWindow.FormData();或var formData = Components.classes["@mozilla.org/files/formdata;1"].createInstance(Components.interfaces.nsIDOMFormData);或Cu.import('resource://gre/modules/FormData.jsm') 上述代码所需的辅助函数：
const {classes: Cc, interfaces: Ci, utils: Cu, Components: components} = Components
Cu.import('resource://gre/modules/Services.jsm');
...
function urlencode(str) {
return escape(str).replace(/\+/g,'%2B').replace(/%20/g, '+').replace(/\*/g, '%2A').replace(/\//g, '%2F').replace(/@/g, '%40');
};
...
//http request
const XMLHttpRequest = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"];
/**
* The following keys can be sent:
* onSuccess (required) a function called when the response is 2xx
* onFailure a function called when the response is not 2xx
* username The username for basic auth
* password The password for basic auth
* overrideMimeType The mime type to use for non-XML response mime types
* timeout A timeout value in milliseconds for the response
* onTimeout A function to call if the request times out.
* body A string containing the entity body of the request
* contentType The content type of the entity body of the request
* headers A hash of optional headers
*/
function HTTP(method,url,options)
{
var requester = new XMLHttpRequest();
var timeout = null;
if (!options.synchronizedRequest) {
requester.onreadystatechange = function() {
switch (requester.readyState) {
case 0:
if (options.onUnsent) {
options.onUnsent(requester);
}
break;
case 1:
if (options.onOpened) {
options.onOpened(requester);
}
break;
case 2:
if (options.onHeaders) {
options.onHeaders(requester);
}
break;
case 3:
if (options.onLoading) {
options.onLoading(requester);
}
break;
case 4:
if (timeout) {
clearTimeout(timeout);
}
if (requester.status==0 || (requester.status>=200 && requester.status<300)) {
options.onSuccess(
requester.status,
requester.responseXML,
requester.responseText,
options.returnHeaders ? _HTTP_parseHeaders(requester.getAllResponseHeaders()) : null,
requester.statusText
);
} else {
if (options.onFailure) {
options.onFailure(
requester.status,
requester.responseXML,
requester.responseText,
options.returnHeaders ? _HTTP_parseHeaders(requester.getAllResponseHeaders()) : null,
requester.statusText
);
}
}
break;
}
}
}
if (options.overrideMimeType) {
requester.overrideMimeType(options.overrideMimeType);
}
if (options.username) {
requester.open(method,url,!options.synchronizedRequest,options.username,options.password);
} else {
requester.open(method,url,!options.synchronizedRequest);
}
if (options.timeout && !options.synchronizedRequest) {
timeout = setTimeout(
function() {
var callback = options.onTimeout ? options.onTimeout : options.onFailure;
callback(0,"Operation timeout.");
},
options.timeout
);
}
if (options.headers) {
for (var name in options.headers) {
requester.setRequestHeader(name,options.headers[name]);
}
}
if (options.sendAsBinary) {
Cu.reportError('sending as binary');
requester.sendAsBinary(options.body);
} else if (options.body) {
requester.setRequestHeader("Content-Type",options.contentType);
requester.send(options.body);
} else {
requester.send(null);
}
if (options.synchronizedRequest) {
if (requester.status==0 || (requester.status>=200 && requester.status<300)) {
options.onSuccess(
requester.status,
requester.responseXML,
requester.responseText,
options.returnHeaders ? _HTTP_parseHeaders(requester.getAllResponseHeaders()) : null,
requester.statusText
);
} else {
if (options.onFailure) {
options.onFailure(
requester.status,
requester.responseXML,
requester.responseText,
options.returnHeaders ? _HTTP_parseHeaders(requester.getAllResponseHeaders()) : null,
requester.statusText
);
}
}
return {
abort: function() {
}
};
} else {
return {
abort: function() {
clearTimeout(timeout);
requester.abort();
}
};
}
}
function _HTTP_parseHeaders(headerText)
{
var headers = {};
if (headerText) {
var eol = headerText.indexOf("\n");
while (eol>=0) {
var line = headerText.substring(0,eol);
headerText = headerText.substring(eol+1);
while (headerText.length>0 && !headerText.match(_HTTP_HEADER_NAME)) {
eol = headerText.indexOf("\n");
var nextLine = eol<0 ? headerText : headerText.substring(0,eol);
line = line+' '+nextLine;
headerText = eol<0 ? "" : headerText.substring(eol+1);
}
// Parse the name value pair
var colon = line.indexOf(':');
var name = line.substring(0,colon);
var value = line.substring(colon+1);
headers[name] = value;
eol = headerText.indexOf("\n");
}
if (headerText.length>0) {
var colon = headerText.indexOf(':');
var name = headerText.substring(0,colon);
var value = headerText.substring(colon+1);
headers[name] = value;
}
}
return headers;
}
答案 1 :(得分：1)
对我有用的是阅读有关
所以在我的react组件onChange处理程序中，我使用新的FileReader读取event.target.files [0]，readAsDataURL（file），并将Base64编码的字符串设置为state。
我有条件地渲染img src = {base64stringfromState}以提供正确图像的确认，然后在onSubmit上，将此“数据URI”（Base64字符串）转换为带有在某处找到的两个代码之一的blob（didn最终不会使用第一个，但这很有用，并且花了很长时间才找到）：
const dataURItoBlob = (dataURI) => {
// convert base64/URLEncoded data component to raw binary data held in a string
var byteString;
if (dataURI.split(',')[0].indexOf('base64') >= 0)
byteString = atob(dataURI.split(',')[1]);
else
byteString = unescape(dataURI.split(',')[1]);
// separate out the mime component
var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
// write the bytes of the string to a typed array
var ia = new Uint8Array(byteString.length);
for (var i = 0; i < byteString.length; i++) {
ia[i] = byteString.charCodeAt(i);
}
return new Blob([ia], {type:mimeString});
}
和
const blob = await fetch(base64imageString).then(res => res.blob())
在构建照片上传/请求的过程中，我们无需执行所有操作即可获取图像的新版本或其他内容，然后在其中将其斑点化：
event.preventDefault()
const blob = await fetch(base64stringfromState).then(res => res.blob())
const formData = new FormData()
formData.append('file@', blob)
formData.append('api_key', 'XXXXX')
formData.append('auth_token', 'XXXXXXXXXX')
formData.append('album', 'youralbumname')
const res = await axios.post('https://api.imageshack.com/v2/images', formData, {headers{'Content-Type':'multipart/form-data'}})
然后，我们要存储上传的图像，只需将https：//附加并记录返回的直接链接以供其ID旁边存储，以便以后需要时可以将其删除。根据之前的代码，他们吐出
res.data.result.images[0].direct_link
res.data.result.images[0].id
这是个解决难题，希望可以帮助其他人将照片上传到imageshack api cuz，考虑到竞争对手的限制，这可能是一个很大的价值。