Drop.io is a web account that allows users to anonymously upload and allotment files in configurable Internet accumulator bins that are alleged “drops.” Last week, we talked to Drop.io CEO Sam Lessin, who told us that the account is now accessible to third-party developers through a REST API.
Intrigued by the abeyant for desktop Drop.io integration, I set out to body an uploading account that can bung into Nautilus, the GNOME book manager. I wrote the affairs with Python and acclimated the GTK accoutrement toolkit to body the user interface. It relies on the simplejson library and the Python bindings for libcurl and Nautilus. This tutorial will explain how I congenital the application, accouterment an addition to extending Nautilus and an overview of how to interface with the Drop.io REST API. A articulation to the complete antecedent cipher is included at the end of the tutorial.
To upload files to Drop.io, the developer passes the book capacity and several ambit to the Drop.io upload endpoint (which is amid at http://assets.drop.io/upload) application the HTTP POST adjustment and a multipart/form-data enctype. The appropriate ambit accommodate the file’s content, the API adaptation string, the API key, an alternative affidavit token, and the name of the drop.
The API key is a cord that Drop.io food to alone developers who appetite to use the API. You can admission one by registering at their developer site. Drop.io amount banned are angry to alone API keys, so I’m not activity to accommodate abundance in the archetype antecedent cipher below—you will charge to annals for one and use your own.
Drop.io doesn’t accept the abstraction of user accounts. Instead, anniversary bead has its own authoritative and bedfellow passwords, which are acclimated to ascendancy admission to the contents. If a bead has all-around address privileges, again the account won’t crave that an affidavit badge in adjustment to upload files. If the bead is configured so that alone an ambassador can add contents, again the user will accept to accumulation an affidavit token. This can either be the absolute admin countersign or a randomized abstruse key that is displayed in the bead authoritative interface.
Unfortunately, Python’s accepted library doesn’t accommodate built-in abutment for administration multipart/form-data encoding. It’s accessible to encode the abstracts by hand, but that’s absolutely needlessly cumbersome. To abstain ambidextrous with that problem, I acclimated the Python bindings for the coil library. The downside of application pycurl is that has a actual C-like interface; there seems to be no way of alienated article cumbersome.
I achieve the upload in a abstracted cilia in adjustment to anticipate the user interface from locking during the upload. Python’s threading library makes this appealing easy. I congenital the afterward Drop.io uploader class, which will achieve the operation:
The architect adjustment sets up the download. The download itself is absolutely performed in the run method, which is accomplished back the cilia starts. The architect takes several parameters, including the bead name, the abounding aisle of the file, and the affidavit token. You can use an abandoned cord as the affidavit badge if you are uploading to a bead with accessible address access. The two alternative ambit are callbacks for functions that will be alleged back the download finishes and back its advance updates.
The coil article is configured with the setopt function. The aboriginal constant of setopt is the advantage that we appetite to set and the additional constant is the value. In the constructor, we accredit the POST method, set the URL to that of the upload endpoint, and accredit advance monitoring. The WRITEFUNCTION and PROGRESSFUNCTION options are set to our callback functions.
The amount of the HTTPPOST advantage is a set of parameters, which is provided as a account of key/value tuples (no, it’s not a dict). We use this to specify the filename and added advice that the API alarm requires. Note that we set the amount of the architecture constant to “json” so that the Drop.io REST API will afford JSON as output. If you adopt XML output, you can put “xml” in there instead. I alone acquisition that JSON is a lot easier to assignment with, but you could achieve the aforementioned affair with XML and the minidom library instead if you appetite to abstain a simplejson dependency.
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