Filling form to get meteorological data on a website using RCurl in R












0














I´m trying to get rainfall data from INMET website.
First it needs to post a form with username and password, and then, fill a form with some parameters.



I´m trying first to set the login parameters with "postform" function from package Rcurl, and then generate the url to access data.



params<-list('E-mail do Usuário' = "username", 'Senha' = "xxxxx") #grabbed from html text
html<-postForm('http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php', params = params, curl = getCurlHandle(), style="POST")
station<-"83630"
startdate<-"01/01/1981"
enddate<-"01/01/2018"
url.data<-sprintf("http://www.inmet.gov.br/projetos/rede/pesquisa/gera_serie_txt.php?&mRelEstacao=%s&btnProcesso=serie&mRelDtInicio=%s&mRelDtFim=%s&mAtributos=,,,,,,,,,,1,,,,,,", station, startdate, enddate)


url.data is the final URL which I can access the data via html



I´m a bit stuck on this, but I guess I'm almost there.










share|improve this question



























    0














    I´m trying to get rainfall data from INMET website.
    First it needs to post a form with username and password, and then, fill a form with some parameters.



    I´m trying first to set the login parameters with "postform" function from package Rcurl, and then generate the url to access data.



    params<-list('E-mail do Usuário' = "username", 'Senha' = "xxxxx") #grabbed from html text
    html<-postForm('http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php', params = params, curl = getCurlHandle(), style="POST")
    station<-"83630"
    startdate<-"01/01/1981"
    enddate<-"01/01/2018"
    url.data<-sprintf("http://www.inmet.gov.br/projetos/rede/pesquisa/gera_serie_txt.php?&mRelEstacao=%s&btnProcesso=serie&mRelDtInicio=%s&mRelDtFim=%s&mAtributos=,,,,,,,,,,1,,,,,,", station, startdate, enddate)


    url.data is the final URL which I can access the data via html



    I´m a bit stuck on this, but I guess I'm almost there.










    share|improve this question

























      0












      0








      0







      I´m trying to get rainfall data from INMET website.
      First it needs to post a form with username and password, and then, fill a form with some parameters.



      I´m trying first to set the login parameters with "postform" function from package Rcurl, and then generate the url to access data.



      params<-list('E-mail do Usuário' = "username", 'Senha' = "xxxxx") #grabbed from html text
      html<-postForm('http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php', params = params, curl = getCurlHandle(), style="POST")
      station<-"83630"
      startdate<-"01/01/1981"
      enddate<-"01/01/2018"
      url.data<-sprintf("http://www.inmet.gov.br/projetos/rede/pesquisa/gera_serie_txt.php?&mRelEstacao=%s&btnProcesso=serie&mRelDtInicio=%s&mRelDtFim=%s&mAtributos=,,,,,,,,,,1,,,,,,", station, startdate, enddate)


      url.data is the final URL which I can access the data via html



      I´m a bit stuck on this, but I guess I'm almost there.










      share|improve this question













      I´m trying to get rainfall data from INMET website.
      First it needs to post a form with username and password, and then, fill a form with some parameters.



      I´m trying first to set the login parameters with "postform" function from package Rcurl, and then generate the url to access data.



      params<-list('E-mail do Usuário' = "username", 'Senha' = "xxxxx") #grabbed from html text
      html<-postForm('http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php', params = params, curl = getCurlHandle(), style="POST")
      station<-"83630"
      startdate<-"01/01/1981"
      enddate<-"01/01/2018"
      url.data<-sprintf("http://www.inmet.gov.br/projetos/rede/pesquisa/gera_serie_txt.php?&mRelEstacao=%s&btnProcesso=serie&mRelDtInicio=%s&mRelDtFim=%s&mAtributos=,,,,,,,,,,1,,,,,,", station, startdate, enddate)


      url.data is the final URL which I can access the data via html



      I´m a bit stuck on this, but I guess I'm almost there.







      r forms url rcurl






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 23 '18 at 12:11









      BindiniBindini

      346




      346
























          1 Answer
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          I can't get beyond the login since I don't have an account. For the login, that site makes a POST request that ultimately looks like this:



          POST /projetos/rede/pesquisa/inicio.php HTTP/1.1
          Host: www.inmet.gov.br
          User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:64.0) Gecko/20100101 Firefox/64.0
          Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
          Accept-Language: en-US,en;q=0.7,fr-BE;q=0.3
          Referer: http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php
          Content-Type: application/x-www-form-urlencoded
          Content-Length: 78
          Connection: close
          Cookie: PHPSESSID=0j7eg8u12gka0c774aalahm9s0
          Upgrade-Insecure-Requests: 1

          mUsuario=USERNAME&mGerModulo=PES&mCod=a&mSenha=PASSWORD&mGerModulo=PES&btnProcesso=+Acessar+


          So, it's passing in a few other query parameters. As a list they look like this:



          list(
          mUsuario = "USERNAME",
          mGerModulo = "PES",
          mCod = "a",
          mSenha = "PASSWORD",
          mGerModulo = "PES",
          btnProcesso = "+Acessar+"
          )


          NOTE that you need to use the input form name vs the text of the form. I have no idea if you need to keep passing the user/pass for every request not can I help with any other requests since I cannot go past the login page.






          share|improve this answer





















          • I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
            – Bindini
            Nov 23 '18 at 13:31












          • You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
            – hrbrmstr
            Nov 23 '18 at 13:33












          • I removed the login information
            – Bindini
            Nov 23 '18 at 13:38










          • This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
            – Bindini
            Nov 23 '18 at 13:44













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          I can't get beyond the login since I don't have an account. For the login, that site makes a POST request that ultimately looks like this:



          POST /projetos/rede/pesquisa/inicio.php HTTP/1.1
          Host: www.inmet.gov.br
          User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:64.0) Gecko/20100101 Firefox/64.0
          Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
          Accept-Language: en-US,en;q=0.7,fr-BE;q=0.3
          Referer: http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php
          Content-Type: application/x-www-form-urlencoded
          Content-Length: 78
          Connection: close
          Cookie: PHPSESSID=0j7eg8u12gka0c774aalahm9s0
          Upgrade-Insecure-Requests: 1

          mUsuario=USERNAME&mGerModulo=PES&mCod=a&mSenha=PASSWORD&mGerModulo=PES&btnProcesso=+Acessar+


          So, it's passing in a few other query parameters. As a list they look like this:



          list(
          mUsuario = "USERNAME",
          mGerModulo = "PES",
          mCod = "a",
          mSenha = "PASSWORD",
          mGerModulo = "PES",
          btnProcesso = "+Acessar+"
          )


          NOTE that you need to use the input form name vs the text of the form. I have no idea if you need to keep passing the user/pass for every request not can I help with any other requests since I cannot go past the login page.






          share|improve this answer





















          • I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
            – Bindini
            Nov 23 '18 at 13:31












          • You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
            – hrbrmstr
            Nov 23 '18 at 13:33












          • I removed the login information
            – Bindini
            Nov 23 '18 at 13:38










          • This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
            – Bindini
            Nov 23 '18 at 13:44


















          1














          I can't get beyond the login since I don't have an account. For the login, that site makes a POST request that ultimately looks like this:



          POST /projetos/rede/pesquisa/inicio.php HTTP/1.1
          Host: www.inmet.gov.br
          User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:64.0) Gecko/20100101 Firefox/64.0
          Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
          Accept-Language: en-US,en;q=0.7,fr-BE;q=0.3
          Referer: http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php
          Content-Type: application/x-www-form-urlencoded
          Content-Length: 78
          Connection: close
          Cookie: PHPSESSID=0j7eg8u12gka0c774aalahm9s0
          Upgrade-Insecure-Requests: 1

          mUsuario=USERNAME&mGerModulo=PES&mCod=a&mSenha=PASSWORD&mGerModulo=PES&btnProcesso=+Acessar+


          So, it's passing in a few other query parameters. As a list they look like this:



          list(
          mUsuario = "USERNAME",
          mGerModulo = "PES",
          mCod = "a",
          mSenha = "PASSWORD",
          mGerModulo = "PES",
          btnProcesso = "+Acessar+"
          )


          NOTE that you need to use the input form name vs the text of the form. I have no idea if you need to keep passing the user/pass for every request not can I help with any other requests since I cannot go past the login page.






          share|improve this answer





















          • I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
            – Bindini
            Nov 23 '18 at 13:31












          • You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
            – hrbrmstr
            Nov 23 '18 at 13:33












          • I removed the login information
            – Bindini
            Nov 23 '18 at 13:38










          • This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
            – Bindini
            Nov 23 '18 at 13:44
















          1












          1








          1






          I can't get beyond the login since I don't have an account. For the login, that site makes a POST request that ultimately looks like this:



          POST /projetos/rede/pesquisa/inicio.php HTTP/1.1
          Host: www.inmet.gov.br
          User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:64.0) Gecko/20100101 Firefox/64.0
          Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
          Accept-Language: en-US,en;q=0.7,fr-BE;q=0.3
          Referer: http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php
          Content-Type: application/x-www-form-urlencoded
          Content-Length: 78
          Connection: close
          Cookie: PHPSESSID=0j7eg8u12gka0c774aalahm9s0
          Upgrade-Insecure-Requests: 1

          mUsuario=USERNAME&mGerModulo=PES&mCod=a&mSenha=PASSWORD&mGerModulo=PES&btnProcesso=+Acessar+


          So, it's passing in a few other query parameters. As a list they look like this:



          list(
          mUsuario = "USERNAME",
          mGerModulo = "PES",
          mCod = "a",
          mSenha = "PASSWORD",
          mGerModulo = "PES",
          btnProcesso = "+Acessar+"
          )


          NOTE that you need to use the input form name vs the text of the form. I have no idea if you need to keep passing the user/pass for every request not can I help with any other requests since I cannot go past the login page.






          share|improve this answer












          I can't get beyond the login since I don't have an account. For the login, that site makes a POST request that ultimately looks like this:



          POST /projetos/rede/pesquisa/inicio.php HTTP/1.1
          Host: www.inmet.gov.br
          User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:64.0) Gecko/20100101 Firefox/64.0
          Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
          Accept-Language: en-US,en;q=0.7,fr-BE;q=0.3
          Referer: http://www.inmet.gov.br/projetos/rede/pesquisa/inicio.php
          Content-Type: application/x-www-form-urlencoded
          Content-Length: 78
          Connection: close
          Cookie: PHPSESSID=0j7eg8u12gka0c774aalahm9s0
          Upgrade-Insecure-Requests: 1

          mUsuario=USERNAME&mGerModulo=PES&mCod=a&mSenha=PASSWORD&mGerModulo=PES&btnProcesso=+Acessar+


          So, it's passing in a few other query parameters. As a list they look like this:



          list(
          mUsuario = "USERNAME",
          mGerModulo = "PES",
          mCod = "a",
          mSenha = "PASSWORD",
          mGerModulo = "PES",
          btnProcesso = "+Acessar+"
          )


          NOTE that you need to use the input form name vs the text of the form. I have no idea if you need to keep passing the user/pass for every request not can I help with any other requests since I cannot go past the login page.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 23 '18 at 13:18









          hrbrmstrhrbrmstr

          60.3k687148




          60.3k687148












          • I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
            – Bindini
            Nov 23 '18 at 13:31












          • You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
            – hrbrmstr
            Nov 23 '18 at 13:33












          • I removed the login information
            – Bindini
            Nov 23 '18 at 13:38










          • This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
            – Bindini
            Nov 23 '18 at 13:44




















          • I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
            – Bindini
            Nov 23 '18 at 13:31












          • You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
            – hrbrmstr
            Nov 23 '18 at 13:33












          • I removed the login information
            – Bindini
            Nov 23 '18 at 13:38










          • This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
            – Bindini
            Nov 23 '18 at 13:44


















          I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
          – Bindini
          Nov 23 '18 at 13:31






          I see. This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…,,,,,, But I need to be logged to get the data after the request. I still didn´t understand how can I make a request and pass my login info together.
          – Bindini
          Nov 23 '18 at 13:31














          You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
          – hrbrmstr
          Nov 23 '18 at 13:33






          You should delete that comment and then change your passwod b/c you just provided the world with your credentials. I am not authorized to use anyone else's credentials but my own and the site won't let me register.
          – hrbrmstr
          Nov 23 '18 at 13:33














          I removed the login information
          – Bindini
          Nov 23 '18 at 13:38




          I removed the login information
          – Bindini
          Nov 23 '18 at 13:38












          This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
          – Bindini
          Nov 23 '18 at 13:44






          This URL bellow is an example of a common request: inmet.gov.br/projetos/rede/pesquisa/…, But I need to be logged to get the data after the request. Once I´m logged, I can make another request. Pls, how can I make a request passing my login info together to get the data via html?
          – Bindini
          Nov 23 '18 at 13:44




















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